X-Git-Url: https://gitweb.ps.run/chirp/blobdiff_plain/4fe63dfa385c43131c1a8b71a181ddce0f70a3f3..d8f54dd8ac187349c1194871a55d4675f28e5a43:/src/main.zig

diff --git a/src/main.zig b/src/main.zig
index f747891..164606f 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -29,8 +29,11 @@ const User = struct {
     id: UserId,
     name: Username,
     display_name: DisplayName,
+    description: UserDescription,
     password_hash: PasswordHash,
+
     posts: PostList,
+
     following: UserList,
     followers: UserList,
 
@@ -82,6 +85,7 @@ const PostId = enum(u64) { _ };
 const Timestamp = i64;
 const Username = std.BoundedArray(u8, 32);
 const DisplayName = std.BoundedArray(u8, 64);
+const UserDescription = std.BoundedArray(u8, 1024);
 const PasswordHash = std.BoundedArray(u8, 128);
 const SessionToken = u64;
 const CookieValue = std.BoundedArray(u8, 128);
@@ -97,8 +101,8 @@ fn parse_enum(comptime E: type, buf: []const u8, base: u8) !E {
 }
 
 // https://developer.mozilla.org/en-US/docs/Glossary/Percent-encoding
-fn reencode(text: []const u8) !PostText {
-    var result = try PostText.init(0);
+fn reencode(comptime T: type, text: []const u8) !T {
+    var result = try T.init(0);
 
     const len = @min(text.len, 1024); // TODO: PostText length
 
@@ -107,28 +111,19 @@ fn reencode(text: []const u8) !PostText {
         const c = text[idx];
         if (c == '+') {
             try result.append(' ');
-        } else if (c == '%') {
-            // special case of &#...
-            // assume only &#, no &#x
-            if (idx + 6 < text.len and std.mem.eql(u8, text[idx .. idx + 6], "%26%23")) {
-                const num_start = idx + 6;
-                var num_end = num_start;
-                while (num_end < text.len and std.ascii.isDigit(text[num_end])) {
-                    num_end += 1;
-                }
+        } else if (c == '%' and idx + 2 < text.len) {
+            const allow = &[_]u8{ 0x26, 0x23, 0x3b, 0x0a };
 
-                if (num_end + 2 < text.len and
-                    text[num_end] == '%' and
-                    text[num_end + 1] == '3' and
-                    std.ascii.toLower(text[num_end + 2]) == 'b')
-                {
-                    try std.fmt.format(result.writer(), "&#{s};", .{text[num_start..num_end]});
-                    idx = num_end + 2;
-                    continue;
-                }
+            const escaped_value = std.fmt.parseUnsigned(u8, text[idx + 1 .. idx + 3], 16) catch continue;
+
+            if (escaped_value == 0x0d) {
+                try std.fmt.format(result.writer(), "<br />", .{});
+            } else if (std.mem.indexOfScalar(u8, allow, escaped_value) != null) {
+                try std.fmt.format(result.writer(), "{c}", .{escaped_value});
+            } else {
+                try std.fmt.format(result.writer(), "&#x{x};", .{escaped_value});
             }
 
-            try std.fmt.format(result.writer(), "&#x{s};", .{text[idx + 1 .. idx + 3]});
             idx += 2;
         } else {
             try result.append(c);
@@ -138,8 +133,8 @@ fn reencode(text: []const u8) !PostText {
     return result;
 }
 
-fn decode(text: []const u8) !std.BoundedArray(u8, 32) {
-    var result = try std.BoundedArray(u8, 32).init(0);
+fn decode(text: []const u8) !std.BoundedArray(u8, 1024) {
+    var result = try std.BoundedArray(u8, 1024).init(0);
 
     const max_len = @min(text.len, 1024); // TODO: PostText length
 
@@ -166,6 +161,9 @@ fn decode(text: []const u8) !std.BoundedArray(u8, 32) {
 }
 
 const Chirp = struct {
+    const PostsPerPage = 10;
+    const UsersPerPage = 10;
+
     pub fn hash_password(password: []const u8) !PasswordHash {
         var hash_buffer = try PasswordHash.init(128);
 
@@ -199,7 +197,7 @@ const Chirp = struct {
         }
     }
 
-    pub fn register_user(env: *lmdb.Env, username: []const u8, password: []const u8) !bool {
+    pub fn register_user(env: lmdb.Env, username: []const u8, password: []const u8) !bool {
         const username_array = try Username.fromSlice(username);
         const display_name = try DisplayName.fromSlice(username);
 
@@ -220,6 +218,7 @@ const Chirp = struct {
                 .id = user_id,
                 .name = username_array,
                 .display_name = display_name,
+                .description = try UserDescription.init(0),
                 .password_hash = try hash_password(password),
                 .posts = try PostList.init(txn),
                 .following = try UserList.init(txn),
@@ -235,7 +234,7 @@ const Chirp = struct {
     }
 
     pub fn login_user(
-        env: *lmdb.Env,
+        env: lmdb.Env,
         username: []const u8,
         password: []const u8,
     ) !SessionToken {
@@ -261,7 +260,7 @@ const Chirp = struct {
         }
     }
 
-    fn logout_user(env: *lmdb.Env, session_token: SessionToken) !void {
+    fn logout_user(env: lmdb.Env, session_token: SessionToken) !void {
         const txn = try env.txn();
         defer txn.commit() catch {};
 
@@ -269,7 +268,7 @@ const Chirp = struct {
         try sessions.del(session_token);
     }
 
-    fn append_post(env: *lmdb.Env, user_id: UserId, post_list: PostList, parent_id: ?PostId, quote_id: ?PostId, text: []const u8) !void {
+    fn append_post(env: lmdb.Env, user_id: UserId, post_list: PostList, parent_id: ?PostId, quote_id: ?PostId, text: []const u8) !PostId {
         var post_id: PostId = undefined;
 
         // TODO: do this in one commit
@@ -283,7 +282,7 @@ const Chirp = struct {
             const posts = try Db.posts(txn);
             post_id = try db.Prng.gen(posts.dbi, PostId);
 
-            const decoded_text = try reencode(text);
+            const decoded_text = try reencode(PostText, text);
             try posts.put(post_id, Post{
                 .id = post_id,
                 .parent_id = parent_id,
@@ -315,42 +314,48 @@ const Chirp = struct {
             var quotes = try quote_post.quotes.open(txn);
             try quotes.append(post_id);
         }
-    }
 
-    fn post(env: *lmdb.Env, user_id: UserId, text: []const u8) !void {
-        const txn = try env.txn();
+        return post_id;
+    }
 
+    fn post(env: lmdb.Env, user_id: UserId, text: []const u8) !void {
+        var txn = try env.txn();
         const users = try Db.users(txn);
         const user = try users.get(user_id);
-
         txn.abort();
 
-        try append_post(env, user_id, user.posts, null, null, text);
+        const post_id = try append_post(env, user_id, user.posts, null, null, text);
+        _ = post_id;
     }
 
-    fn comment(env: *lmdb.Env, user_id: UserId, parent_post_id: PostId, text: []const u8) !void {
-        const txn = try env.txn();
+    fn comment(env: lmdb.Env, user_id: UserId, parent_post_id: PostId, text: []const u8) !void {
+        var txn = try env.txn();
+        const users = try Db.users(txn);
+        const user = try users.get(user_id);
 
         const posts = try Db.posts(txn);
         const parent_post = try posts.get(parent_post_id);
-
         txn.abort();
 
-        try append_post(env, user_id, parent_post.comments, parent_post_id, null, text);
-    }
+        const post_id = try append_post(env, user_id, parent_post.comments, parent_post_id, null, text);
 
-    fn quote(env: *lmdb.Env, user_id: UserId, quote_post_id: PostId, text: []const u8) !void {
-        const txn = try env.txn();
+        txn = try env.txn();
+        var replies_view = try user.posts.open(txn);
+        try replies_view.append(post_id);
+        try txn.commit();
+    }
 
+    fn quote(env: lmdb.Env, user_id: UserId, quote_post_id: PostId, text: []const u8) !void {
+        var txn = try env.txn();
         const users = try Db.users(txn);
         const user = try users.get(user_id);
-
         txn.abort();
 
-        try append_post(env, user_id, user.posts, null, quote_post_id, text);
+        const post_id = try append_post(env, user_id, user.posts, null, quote_post_id, text);
+        _ = post_id;
     }
 
-    fn vote(env: *lmdb.Env, post_id: PostId, user_id: UserId, kind: Vote.Kind) !void {
+    fn vote(env: lmdb.Env, post_id: PostId, user_id: UserId, kind: Vote.Kind) !void {
         const txn = try env.txn();
         defer txn.commit() catch {};
 
@@ -390,7 +395,7 @@ const Chirp = struct {
         }
     }
 
-    fn follow(env: *lmdb.Env, user_id: UserId, user_id_to_follow: UserId) !void {
+    fn follow(env: lmdb.Env, user_id: UserId, user_id_to_follow: UserId) !void {
         const txn = try env.txn();
         defer txn.commit() catch {};
 
@@ -413,7 +418,7 @@ const Chirp = struct {
         }
     }
 
-    fn get_session_user_id(env: *lmdb.Env, session_token: SessionToken) !UserId {
+    fn get_session_user_id(env: lmdb.Env, session_token: SessionToken) !UserId {
         const txn = try env.txn();
         defer txn.abort();
 
@@ -422,7 +427,7 @@ const Chirp = struct {
         return try sessions.get(session_token);
     }
 
-    fn get_user(env: *lmdb.Env, user_id: UserId) !User {
+    fn get_user(env: lmdb.Env, user_id: UserId) !User {
         const txn = try env.txn();
         defer txn.abort();
 
@@ -434,17 +439,86 @@ const Chirp = struct {
 // }}}
 
 // html {{{
-fn html_form(res: *http.Response, comptime fmt_action: []const u8, args_action: anytype, inputs: anytype) !void {
-    try res.write("<form action=\"", .{});
-    try res.write(fmt_action, args_action);
-    try res.write("\" method=\"post\">", .{});
+pub fn Paginate(comptime T: type) type {
+    return struct {
+        const Self = @This();
+
+        const IterateResult = T.Base.View.Iterator.Result;
+
+        res: *http.Response,
+        view: T.View,
+        per_page: u64,
+
+        it: T.Base.View.Iterator,
+        starting_idx: ?T.Base.Key,
+        count: u64 = 0,
+
+        pub fn init(res: *http.Response, view: T.View, per_page: u64) !Self {
+            var it = view.reverse_iterator();
+            if (res.req.get_param("starting_at")) |starting_at_str| {
+                it.idx = try parse_enum(T.Base.Key, starting_at_str, 16);
+            }
+
+            return .{
+                .res = res,
+                .view = view,
+                .per_page = per_page,
+                .it = it,
+                .starting_idx = it.idx,
+            };
+        }
+        pub fn next(self: *Self) IterateResult {
+            if (self.it.next()) |kv| {
+                if (self.count < self.per_page) {
+                    self.count += 1;
+                    return kv;
+                }
+            }
+            return null;
+        }
+        pub fn write_navigation(self: *Self) !void {
+            const next_idx = self.it.next();
+
+            if (self.view.base.head.last != self.starting_idx) {
+                var prev_it = self.view.iterator();
+                prev_it.idx = self.starting_idx.?;
+                var oldest_idx = self.starting_idx.?;
+
+                var count: u64 = 0;
+                while (prev_it.next()) |kv| {
+                    oldest_idx = kv.key;
+
+                    if (count > self.per_page) {
+                        break;
+                    } else {
+                        count += 1;
+                    }
+                }
+
+                try self.res.write("<a href=\"{s}?starting_at={x}\">Prev</a> ", .{ self.res.req.target, @intFromEnum(oldest_idx) });
+            }
+
+            if (next_idx) |kv| {
+                try self.res.write("<a href=\"{s}?starting_at={x}\">Next</a>", .{ self.res.req.target, @intFromEnum(kv.key) });
+            }
+        }
+    };
+}
+fn html_form(res: *http.Response, action: []const u8, inputs: anytype) !void {
+    try res.write("<form action=\"{s}\" method=\"post\">", .{action});
 
     inline for (inputs) |input| {
         switch (@typeInfo(@TypeOf(input))) {
-            .Struct => {
-                try res.write("<input ", .{});
-                try res.write(input[0], input[1]);
-                try res.write(" />", .{});
+            .Struct => |s| {
+                if (s.fields.len == 3) {
+                    try res.write("<{s} ", .{input[0]});
+                    try res.write(input[1], input[2]);
+                    try res.write("></{s}>", .{input[0]});
+                } else {
+                    try res.write("<input ", .{});
+                    try res.write(input[0], input[1]);
+                    try res.write(" />", .{});
+                }
             },
             else => {
                 try res.write("<input ", .{});
@@ -460,34 +534,7 @@ fn html_form(res: *http.Response, comptime fmt_action: []const u8, args_action:
 
 // write {{{
 const TimeStr = std.BoundedArray(u8, 256);
-// fn time_str(_t: i64) TimeStr {
-//     var result = TimeStr.init(0) catch unreachable;
-
-//     const nthSecond: u64 = @intCast(_t);
-//     const nthDay = nthSecond / std.time.s_per_day;
-//     const secondInDay = nthSecond - nthDay * std.time.s_per_day;
-//     const hourInDay = secondInDay / std.time.s_per_hour;
-//     const secondInHour = secondInDay % std.time.s_per_hour;
-//     const minuteInHour = secondInHour / 60;
-//     const secondInMinute = secondInDay % std.time.s_per_min;
-
-//     const nthYear = nthDay / 365; // maybe check
-//     const year = 1970 + nthYear;
-//     const leapdays = year / 4 - year / 100 + year / 400;
-//     const secondInYear = nthSecond - (nthYear * 365 + leapdays) * std.time.s_per_day;
-//     const dayInYear = secondInYear / std.time.s_per_day;
-
-//     std.fmt.format(result.writer(), "<time>{:0>2}:{:0>2}:{:0>2} {:0>2}.{:0>2}.{:0>4} UTC</time>", .{
-//         hourInDay,
-//         minuteInHour,
-//         secondInMinute,
-//         dayInYear,
-//         0,
-//         year,
-//     }) catch unreachable;
-
-//     return result;
-// }
+
 // http://howardhinnant.github.io/date_algorithms.html
 fn time_str(_t: i64) TimeStr {
     const t: u64 = @intCast(_t);
@@ -523,12 +570,9 @@ fn write_header(res: *http.Response, logged_in: ?Login) !void {
         try res.write(
             \\<a href="/post">Post</a><br />
         , .{});
-        try html_form(res, "/logout", .{}, .{
+        try html_form(res, "/logout", .{
             \\type="submit" value="Logout"
         });
-        try html_form(res, "/quit", .{}, .{
-            \\type="submit" value="Quit"
-        });
         try res.write("<br /><br />", .{});
     } else {
         try res.write(
@@ -537,17 +581,13 @@ fn write_header(res: *http.Response, logged_in: ?Login) !void {
             \\<input type="text" name="username" />
             \\<input type="password" name="password" />
             \\<input type="submit" value="Register" />
-            \\</form>
+            \\</form><br />
             \\<form action="/login" method="post">
             \\<input type="text" name="username" />
             \\<input type="password" name="password" />
             \\<input type="submit" value="Login" />
-            \\</form>
+            \\</form><br /><br />
         , .{});
-        try html_form(res, "/quit", .{}, .{
-            \\type="submit" value="Quit"
-        });
-        try res.write("<br /><br />", .{});
     }
 }
 fn write_start(res: *http.Response) !void {
@@ -556,22 +596,11 @@ fn write_start(res: *http.Response) !void {
         \\<html>
         \\<head>
         \\<link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>&#128035;</text></svg>">
+        \\<meta name="viewport" content="width=device-width, initial-scale=1.0" />
         \\<style>
         \\  form {
         \\    display: inline-block;
         \\  }
-        // \\  .toggle > form > input:placeholder-shown {
-        // \\    display: none;
-        // \\  }
-        // \\  .toggle:hover > form > input {
-        // \\    display: inline-block;
-        // \\  }
-        // \\  .toggle > form > input:placeholder-shown + input {
-        // \\    display: none;
-        // \\  }
-        // \\  .toggle:hover > form > input + input {
-        // \\    display: inline-block;
-        // \\  }
         \\</style>
         \\</head>
         \\<body>
@@ -590,17 +619,34 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
     const user = try users.get(post.user_id);
 
     try res.write(
-        \\<div>
-        \\<span><a href="/user/{s}">{s}</a> {s}</span><br />
+        \\<div id="{x}">
+        \\<span><a href="/user/{s}">{s}</a>
+    , .{ @intFromEnum(post_id), user.name.constSlice(), user.display_name.constSlice() });
+    if (post.parent_id) |id| {
+        try res.write(" <a href=\"/post/{x}\">..</a>", .{@intFromEnum(id)});
+    }
+    try res.write(
+        \\ {s}</span><br />
         \\<span>{s}</span><br />
-    , .{ user.name.constSlice(), user.display_name.constSlice(), time_str(post.time).constSlice(), post.text.constSlice() });
+    , .{ time_str(post.time).constSlice(), post.text.constSlice() });
+
+    if (logged_in != null and post.user_id == logged_in.?.user.id) {
+        // Votes
+        try res.write(
+            \\<small>
+            \\<a href="/upvotes/{0x}">{1} Upvotes</a>
+            \\<a href="/downvotes/{0x}">{2} Downvotes</a>
+            \\</small>
+            \\<br />
+        , .{ @intFromEnum(post_id), post.upvotes, post.downvotes });
+    }
 
     if (post.quote_id) |quote_id| {
         try res.write("<div style=\"border: 1px solid black;\">", .{});
         if (options.recurse > 0) {
             try write_post(res, txn, logged_in, quote_id, .{ .recurse = options.recurse - 1 });
         } else {
-            try res.write("<a href=\"/post/{x}\">...</a>", .{@intFromEnum(quote_id)});
+            try res.write("<a href=\"/post/{x}\">...</a>", .{@intFromEnum(post_id)});
         }
         try res.write("</div>", .{});
     }
@@ -613,23 +659,23 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
     const vote: ?Vote = if (logged_in != null and try votes_view.has(logged_in.?.user.id)) try votes_view.get(logged_in.?.user.id) else null;
 
     if (vote != null and vote.?.kind == .Up) {
-        try html_form(res, "/upvote", .{}, .{
+        try html_form(res, "/upvote", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             .{ "type=\"submit\" value=\"&#x2B06; {}\"", .{post.upvotes} },
         });
     } else {
-        try html_form(res, "/upvote", .{}, .{
+        try html_form(res, "/upvote", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             .{ "type=\"submit\" value=\"&#x21E7; {}\"", .{post.upvotes} },
         });
     }
     if (vote != null and vote.?.kind == .Down) {
-        try html_form(res, "/downvote", .{}, .{
+        try html_form(res, "/downvote", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             .{ "type=\"submit\" value=\"&#x2B07; {}\"", .{post.downvotes} },
         });
     } else {
-        try html_form(res, "/downvote", .{}, .{
+        try html_form(res, "/downvote", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             .{ "type=\"submit\" value=\"&#x21E9; {}\"", .{post.downvotes} },
         });
@@ -642,11 +688,8 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
 
     // Quote
     try res.write(
-        \\<a href="/quotes/{x}">&#x1F501; {}</a> 
+        \\<a href="/quoted/{x}">&#x1F501; {}</a> 
     , .{ @intFromEnum(post.id), quotes_view.len() });
-    try res.write(
-        \\<br />
-    , .{});
 
     // Save to List
     if (logged_in) |login| {
@@ -654,22 +697,24 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         try res.write("<form action=\"/list_add\" method=\"post\">", .{});
         try res.write("<select name=\"list_id\">", .{});
         var it = lists_view.iterator();
+        // TODO: mark lists that already contain post
         while (it.next()) |kv| {
             const name = kv.val.name;
-            const id = kv.val.list.idx.?;
-            try res.write("<option value=\"{x}\">{s}</option>", .{ id, name.constSlice() });
+            const id = kv.val.list.base.idx.?;
+            const list_view = try kv.val.list.open(txn);
+            try res.write("<option value=\"{x}\">{s}{s}</option>", .{ id, name.constSlice(), if (list_view.has(post_id) catch false) " *" else "" });
         }
         try res.write("</select>", .{});
-        try res.write("<input type=\"hidden\" name=\"post_id\" value=\"{x}\"></input>", .{@intFromEnum(post_id)});
-        try res.write("<input type=\"submit\" value=\"Save\"></input>", .{});
+        try res.write("<input type=\"hidden\" name=\"post_id\" value=\"{x}\" />", .{@intFromEnum(post_id)});
+        try res.write("<input type=\"submit\" value=\"Save\" />", .{});
         try res.write("</form>", .{});
     }
 
     // Comment field
     // TODO: maybe always show comment field and prompt for login
     if (options.show_comment_field and logged_in != null) {
-        try res.write("<br />", .{});
-        try html_form(res, "/comment", .{}, .{
+        try res.write("<br /><br />", .{});
+        try html_form(res, "/comment", .{
             .{ "type=\"hidden\" value=\"{x}\" name=\"post_id\"", .{@intFromEnum(post.id)} },
             "type=\"text\" name=\"text\" placeholder=\"Text\"",
             "type=\"submit\" value=\"Comment\"",
@@ -687,7 +732,7 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         var it = comments_view.iterator();
         var count: u8 = 0;
         while (it.next()) |comment_id| {
-            try write_post(res, txn, logged_in, comment_id, .{ .recurse = options.recurse - 1 });
+            try write_post(res, txn, logged_in, comment_id.key, .{ .recurse = options.recurse - 1 });
             try res.write("<br />", .{});
             if (options.recurse == 1) {
                 count += 1;
@@ -704,14 +749,106 @@ fn write_post(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_id: Po
         \\</div>
     , .{});
 }
-fn write_posts(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_list: PostList) !void {
+fn write_profile(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user: User) !void {
+    const following = try user.following.open(txn);
+    const followers = try user.followers.open(txn);
+
+    try res.write(
+        \\<h2 style="display: inline;"><a href="/user/{s}">{s}</a></h2>
+    , .{
+        user.name.constSlice(), user.display_name.constSlice(),
+    });
+    if (logged_in != null and user.id != logged_in.?.user.id) {
+        const login = logged_in.?;
+
+        // follow/unfollow
+        if (try followers.has(login.user.id)) {
+            try html_form(res, "/follow", .{
+                .{ "type=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user.id)} },
+                \\type="submit" value="Unfollow"
+            });
+        } else {
+            try html_form(res, "/follow", .{
+                .{ "type=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user.id)} },
+                \\type="submit" value="Follow"
+            });
+        }
+
+        // add to feed
+        const feeds_view = try login.user.feeds.open(txn);
+        try res.write("<form action=\"/feed_add\" method=\"post\">", .{});
+        try res.write("<select name=\"feed_id\">", .{});
+        var it = feeds_view.iterator();
+        while (it.next()) |kv| {
+            const name = kv.val.name;
+            const id = kv.val.list.base.idx.?;
+            const list_view = try kv.val.list.open(txn);
+            try res.write("<option value=\"{x}\">{s}{s}</option>", .{ id, name.constSlice(), if (list_view.has(user.id) catch false) " *" else "" });
+        }
+        try res.write("</select>", .{});
+        try res.write("<input type=\"hidden\" name=\"user_id\" value=\"{x}\" />", .{@intFromEnum(user.id)});
+        try res.write("<input type=\"submit\" value=\"Add to feed\" />", .{});
+        try res.write("</form>", .{});
+    }
+    try res.write(
+        \\ <a href="/following/{s}">{} following</a>
+        \\ <a href="/followers/{s}">{} followers</a>
+        \\<br />
+    , .{
+        user.name.constSlice(), following.len(),
+        user.name.constSlice(), followers.len(),
+    });
+
+    try res.write(
+        \\<a href="/all/{0s}">All Posts</a>
+        \\ <a href="/comments/{0s}">Comments</a>
+        \\ <a href="/quotes/{0s}">Quotes</a><br />
+    , .{
+        user.name.constSlice(),
+    });
+
+    if (logged_in != null and user.id == logged_in.?.user.id) {
+        try res.write(
+            \\<a href="/lists">Lists</a>
+            \\<a href="/feeds">Feeds</a>
+            \\<a href="/edit">Edit</a><br />
+            \\<br />
+        , .{});
+    }
+
+    if (user.description.len > 0) {
+        try res.write(
+            \\<div style="padding-left: 5px; border-left: 1px solid grey;">
+            // \\&#x00AB; {s} &#x00BB;
+            \\<i>{s}</i>
+            \\</div>
+        , .{user.description.constSlice()});
+    }
+
+    try res.write("<br />", .{});
+}
+fn write_posts(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, post_list: PostList, options: struct {
+    show_posts: bool,
+    show_quotes: bool,
+    show_comments: bool,
+}) !void {
     const posts_view = try post_list.open(txn);
 
-    var it = posts_view.reverse_iterator();
-    while (it.next()) |post_id| {
-        try write_post(res, txn, logged_in, post_id, .{ .recurse = 1 });
-        try res.write("<br />", .{});
+    var paginate = try Paginate(PostList).init(res, posts_view, Chirp.PostsPerPage);
+
+    while (paginate.next()) |post_id| {
+        const posts = try Db.posts(txn);
+        const post = try posts.get(post_id.key);
+        if ((options.show_posts and (post.parent_id == null and post.quote_id == null)) or
+            (options.show_quotes and (post.quote_id != null)) or
+            (options.show_comments and (post.parent_id != null)))
+        {
+            try write_post(res, txn, logged_in, post_id.key, .{ .recurse = 1 });
+            try res.write("<br />", .{});
+        }
     }
+
+    try paginate.write_navigation();
 }
 fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_list: UserList) !void {
     const users = try Db.users(txn);
@@ -725,9 +862,9 @@ fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_li
     while (true) {
         var newest_post: ?Post = null;
 
-        var it = following.iterator();
-        while (it.next()) |following_id| {
-            const followed_user = try users.get(following_id);
+        var following_it = following.iterator();
+        while (following_it.next()) |following_id| {
+            const followed_user = try users.get(following_id.key);
             const followed_posts = try followed_user.posts.open(txn);
 
             if (followed_posts.len() == 0) {
@@ -736,10 +873,11 @@ fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_li
 
             var followed_posts_it = followed_posts.reverse_iterator();
             while (followed_posts_it.next()) |followed_post_id| {
-                const last_post = try posts.get(followed_post_id);
+                const p = try posts.get(followed_post_id.key);
 
-                if ((prev_newest_post == null or last_post.time < prev_newest_post.?.time) and (newest_post == null or newest_post.?.time < last_post.time)) {
-                    newest_post = last_post;
+                if ((prev_newest_post == null or p.time < prev_newest_post.?.time) and (newest_post == null or newest_post.?.time < p.time)) {
+                    newest_post = p;
+                    break;
                 }
             }
         }
@@ -756,6 +894,705 @@ fn write_timeline(res: *http.Response, txn: lmdb.Txn, logged_in: ?Login, user_li
         try res.write("<br />", .{});
     }
 }
+fn write_user(res: *http.Response, txn: lmdb.Txn, user_id: UserId) !void {
+    const users = try Db.users(txn);
+    const user = try users.get(user_id);
+    try res.write(
+        \\<a href="/user/{s}">{s}</a>
+    , .{ user.name.constSlice(), user.display_name.constSlice() });
+}
+fn write_votes(res: *http.Response, txn: lmdb.Txn, votes: VoteList, options: struct {
+    show_upvotes: bool = true,
+    show_downvotes: bool = true,
+}) !void {
+    const votes_view = try votes.open(txn);
+
+    var paginate = try Paginate(VoteList).init(res, votes_view, Chirp.UsersPerPage);
+
+    while (paginate.next()) |kv| {
+        const user_id = kv.key;
+        const vote = kv.val;
+
+        if ((options.show_upvotes and vote.kind == .Up) or
+            (options.show_downvotes and vote.kind == .Down))
+        {
+            try write_user(res, txn, user_id);
+            try res.write(" <small>{s}</small><br />", .{time_str(vote.time).constSlice()});
+        }
+    }
+
+    try paginate.write_navigation();
+}
+fn check_login(env: lmdb.Env, req: http.Request, res: *http.Response) !?Login {
+    var result: ?Login = null;
+
+    if (req.get_cookie("session_token")) |session_token_str| {
+        var remove_session_token = true;
+
+        if (std.fmt.parseUnsigned(SessionToken, session_token_str, 16) catch null) |session_token| {
+            // const session_token = try std.fmt.parseUnsigned(SessionToken, session_token_str, 10);
+            // const session_token = std.mem.bytesToValue(SessionToken, session_token_str);
+            if (Chirp.get_session_user_id(env, session_token) catch null) |user_id| {
+                const txn = try env.txn();
+                defer txn.abort();
+                const users = try Db.users(txn);
+
+                result = .{
+                    .user = try users.get(user_id),
+                    .session_token = session_token,
+                };
+
+                remove_session_token = false;
+            }
+        }
+
+        if (remove_session_token) {
+            try res.add_header(
+                "Set-Cookie",
+                .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
+            );
+        }
+    }
+
+    return result;
+}
+// }}}
+
+// GET {{{
+const GET = struct {
+    const Self = @This();
+
+    txn: lmdb.Txn,
+    req: http.Request,
+    res: *http.Response,
+    logged_in: ?Login,
+
+    fn handle(self: Self) !bool {
+        const ti = @typeInfo(Self);
+        inline for (ti.Struct.decls) |f_decl| {
+            const has_arg = f_decl.name.len > 1 and f_decl.name[f_decl.name.len - 1] == '/';
+            const match = if (has_arg) std.mem.startsWith(u8, self.req.target, f_decl.name) else std.mem.eql(u8, self.req.target, f_decl.name);
+
+            if (match) {
+                const f = @field(Self, f_decl.name);
+                const fi = @typeInfo(@TypeOf(f));
+                if (fi.Fn.params.len == 1) {
+                    try @call(.auto, f, .{self});
+                } else {
+                    const arg_type = fi.Fn.params[1].type.?;
+                    const arg_info = @typeInfo(arg_type);
+                    var arg: arg_type = undefined;
+                    const field = arg_info.Struct.fields[0];
+                    if (self.req.target.len <= f_decl.name.len) {
+                        return error.NoArgProvided;
+                    }
+                    const str = self.req.target[f_decl.name.len..self.req.target.len];
+                    const field_ti = @typeInfo(field.type);
+                    switch (field_ti) {
+                        // TODO: maybe handle BoundedArray?
+                        .Int => {
+                            @field(arg, field.name) = try std.fmt.parseUnsigned(field.type, str, 16);
+                        },
+                        .Enum => {
+                            @field(arg, field.name) = try parse_enum(field.type, str, 16);
+                        },
+                        else => {
+                            @field(arg, field.name) = str;
+                        },
+                    }
+
+                    try @call(.auto, f, .{ self, arg });
+                }
+                return true;
+            }
+        }
+        return false;
+    }
+
+    pub fn @"/user/"(self: Self, args: struct { username: []const u8 }) !void {
+        const user_ids = try Db.user_ids(self.txn);
+        if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+            const users = try Db.users(self.txn);
+            const user = try users.get(user_id);
+
+            try write_profile(self.res, self.txn, self.logged_in, user);
+
+            try write_posts(self.res, self.txn, self.logged_in, user.posts, .{
+                .show_posts = true,
+                .show_quotes = false,
+                .show_comments = false,
+            });
+        } else |err| {
+            try self.res.write(
+                \\<p>User not found [{}]</p>
+            , .{err});
+        }
+    }
+    pub fn @"/comments/"(self: Self, args: struct { username: []const u8 }) !void {
+        const user_ids = try Db.user_ids(self.txn);
+        if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+            const users = try Db.users(self.txn);
+            const user = try users.get(user_id);
+
+            try write_profile(self.res, self.txn, self.logged_in, user);
+
+            try write_posts(self.res, self.txn, self.logged_in, user.posts, .{
+                .show_posts = false,
+                .show_quotes = false,
+                .show_comments = true,
+            });
+        } else |err| {
+            try self.res.write(
+                \\<p>User not found [{}]</p>
+            , .{err});
+        }
+    }
+    pub fn @"/quotes/"(self: Self, args: struct { username: []const u8 }) !void {
+        const user_ids = try Db.user_ids(self.txn);
+        if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+            const users = try Db.users(self.txn);
+            const user = try users.get(user_id);
+
+            try write_profile(self.res, self.txn, self.logged_in, user);
+
+            try write_posts(self.res, self.txn, self.logged_in, user.posts, .{
+                .show_posts = false,
+                .show_quotes = true,
+                .show_comments = false,
+            });
+        } else |err| {
+            try self.res.write(
+                \\<p>User not found [{}]</p>
+            , .{err});
+        }
+    }
+    pub fn @"/all/"(self: Self, args: struct { username: []const u8 }) !void {
+        const user_ids = try Db.user_ids(self.txn);
+        if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+            const users = try Db.users(self.txn);
+            const user = try users.get(user_id);
+
+            try write_profile(self.res, self.txn, self.logged_in, user);
+
+            try write_posts(self.res, self.txn, self.logged_in, user.posts, .{
+                .show_posts = true,
+                .show_quotes = true,
+                .show_comments = true,
+            });
+        } else |err| {
+            try self.res.write(
+                \\<p>User not found [{}]</p>
+            , .{err});
+        }
+    }
+    pub fn @"/following/"(self: Self, args: struct { username: []const u8 }) !void {
+        const user_ids = try Db.user_ids(self.txn);
+        if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+            const users = try Db.users(self.txn);
+            const user = try users.get(user_id);
+
+            const following_view = try user.following.open(self.txn);
+
+            var paginate = try Paginate(UserList).init(self.res, following_view, Chirp.UsersPerPage);
+
+            try self.res.write(
+                \\<h2><a href="/user/{s}">{s}</a> follows:</h2>
+            , .{ user.name.constSlice(), user.display_name.constSlice() });
+
+            while (paginate.next()) |following_id| {
+                const following_user = try users.get(following_id.key);
+
+                try self.res.write(
+                    \\<a href="/user/{s}">{s}</a><br />
+                , .{ following_user.name.constSlice(), following_user.display_name.constSlice() });
+            }
+
+            try paginate.write_navigation();
+        } else |err| {
+            try self.res.write(
+                \\<p>User not found [{}]</p>
+            , .{err});
+        }
+    }
+    pub fn @"/followers/"(self: Self, args: struct { username: []const u8 }) !void {
+        const user_ids = try Db.user_ids(self.txn);
+        if (user_ids.get(try Username.fromSlice(args.username))) |user_id| {
+            const users = try Db.users(self.txn);
+            const user = try users.get(user_id);
+
+            const followers_view = try user.followers.open(self.txn);
+            var paginate = try Paginate(UserList).init(self.res, followers_view, Chirp.UsersPerPage);
+
+            try self.res.write(
+                \\<h2><a href="/user/{s}">{s}</a> followers:</h2>
+            , .{ user.name.constSlice(), user.display_name.constSlice() });
+
+            while (paginate.next()) |follower_id| {
+                const follower_user = try users.get(follower_id.key);
+
+                try self.res.write(
+                    \\<a href="/user/{s}">{s}</a><br />
+                , .{ follower_user.name.constSlice(), follower_user.display_name.constSlice() });
+            }
+
+            try paginate.write_navigation();
+        } else |err| {
+            try self.res.write(
+                \\<p>User not found [{}]</p>
+            , .{err});
+        }
+    }
+    pub fn @"/post/"(self: Self, args: struct { post_id: PostId }) !void {
+        try write_post(self.res, self.txn, self.logged_in, args.post_id, .{
+            .recurse = 3, // TODO: factor out
+            .show_comment_field = true,
+        });
+    }
+    pub fn @"/upvotes/"(self: Self, args: struct { post_id: PostId }) !void {
+        const posts = try Db.posts(self.txn);
+        const post = try posts.get(args.post_id);
+        try self.res.write("{} upvotes:<br />", .{post.upvotes});
+        try write_votes(self.res, self.txn, post.votes, .{});
+    }
+    pub fn @"/quoted/"(self: Self, args: struct { post_id: PostId }) !void {
+        const posts = try Db.posts(self.txn);
+        const post = try posts.get(args.post_id);
+
+        const referer = if (self.req.get_header("Referer")) |ref| ref else self.req.target;
+
+        if (self.logged_in != null) {
+            try html_form(self.res, "/quote", .{
+                .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
+                .{ "type=\"hidden\" name=\"post_id\" value=\"{x}\"", .{@intFromEnum(post.id)} },
+                "type=\"text\" name=\"text\" placeholder=\"Text\" autofocus",
+                "type=\"submit\" value=\"Quote\"",
+            });
+            try self.res.write("<br />", .{});
+        }
+
+        // TODO: show all bc this only contains quotes?
+        try write_posts(self.res, self.txn, self.logged_in, post.quotes, .{
+            .show_posts = false,
+            .show_quotes = true,
+            .show_comments = false,
+        });
+    }
+    pub fn @"/list/"(self: Self, args: struct { list_id: PostList.Base.Index }) !void {
+        try write_posts(self.res, self.txn, self.logged_in, PostList{ .base = .{ .idx = args.list_id } }, .{
+            .show_posts = true,
+            .show_quotes = true,
+            .show_comments = true,
+        });
+    }
+    pub fn @"/lists"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const post_lists_view = try login.user.post_lists.open(self.txn);
+
+            try html_form(self.res, "/create_list", .{
+                "type=\"text\" name=\"name\"",
+                "type=\"submit\" value=\"Add\"",
+            });
+
+            try self.res.write("<br /><br />", .{});
+
+            var it = post_lists_view.iterator();
+            while (it.next()) |kv| {
+                const name = kv.val.name;
+                const post_list = kv.val.list;
+                try self.res.write(
+                    \\<a href="/list/{x}">{s}</a> 
+                , .{ post_list.base.idx.?, name.constSlice() });
+                try html_form(self.res, "/delete_list", .{
+                    .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
+                    "type=\"submit\" value=\"Delete\"",
+                });
+                try self.res.write("<br />", .{});
+            }
+        } else {
+            try self.res.write("not logged in", .{});
+        }
+    }
+    pub fn @"/feed/"(self: Self, args: struct { feed_id: UserList.Base.Index }) !void {
+        try write_timeline(self.res, self.txn, self.logged_in, UserList{ .base = .{ .idx = args.feed_id } });
+    }
+    pub fn @"/feeds"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const feeds_view = try login.user.feeds.open(self.txn);
+
+            try html_form(self.res, "/create_feed", .{
+                "type=\"text\" name=\"name\"",
+                "type=\"submit\" value=\"Add\"",
+            });
+
+            try self.res.write("<br /><br />", .{});
+
+            var it = feeds_view.iterator();
+            while (it.next()) |kv| {
+                const name = kv.val.name;
+                const user_list = kv.val.list;
+                try self.res.write(
+                    \\<a href="/feed/{x}">{s}</a> 
+                , .{ user_list.base.idx.?, name.constSlice() });
+                try html_form(self.res, "/delete_feed", .{
+                    .{ "type=\"hidden\" name=\"list_id\" value=\"{x}\"", .{kv.key} },
+                    "type=\"submit\" value=\"Delete\"",
+                });
+                try self.res.write("<br />", .{});
+            }
+        } else {
+            try self.res.write("not logged in", .{});
+        }
+    }
+    pub fn @"/post"(self: Self) !void {
+        if (self.logged_in) |login| {
+            _ = login;
+            const referer = if (self.req.get_header("Referer")) |ref| ref else self.req.target;
+
+            try html_form(self.res, "/post", .{
+                .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
+                "type=\"text\" name=\"text\" placeholder=\"Text\" autofocus",
+                "type=\"submit\" value=\"Post\"",
+            });
+        } else {
+            try self.res.write("not logged in", .{});
+        }
+    }
+    pub fn @"/edit"(self: Self) !void {
+        if (self.logged_in) |login| {
+            try self.res.write("<br />Username: ", .{});
+            try html_form(self.res, "/set_username", .{
+                .{ "type=\"text\" name=\"username\" placeholder=\"{s}\"", .{login.user.name.constSlice()} },
+                "type=\"submit\" value=\"Change\"",
+            });
+            try self.res.write("<br />Display Name: ", .{});
+            try html_form(self.res, "/set_display_name", .{
+                .{ "type=\"text\" name=\"display_name\" placeholder=\"{s}\"", .{login.user.display_name.constSlice()} },
+                "type=\"submit\" value=\"Change\"",
+            });
+            try self.res.write("<br />Description: ", .{});
+            try html_form(self.res, "/set_description", .{
+                .{ "textarea", "type=\"text\" name=\"description\" placeholder=\"{s}\"", .{login.user.description.constSlice()} },
+                "type=\"submit\" value=\"Change\"",
+            });
+            try self.res.write("<br />Password: ", .{});
+            try html_form(self.res, "/set_password", .{
+                "type=\"text\" name=\"password\"",
+                "type=\"submit\" value=\"Change\"",
+            });
+        } else {
+            try self.res.write("not logged in", .{});
+        }
+    }
+    pub fn @"/"(self: Self) !void {
+        if (self.logged_in) |login| {
+            try write_timeline(self.res, self.txn, self.logged_in, login.user.following);
+        } else {
+            // TODO: generic home
+            try self.res.write("Homepage", .{});
+        }
+    }
+};
+// }}}
+
+// POST {{{
+const POST = struct {
+    const Self = @This();
+
+    env: lmdb.Env,
+    req: http.Request,
+    res: *http.Response,
+    logged_in: ?Login,
+
+    pub fn handle(self: Self) !bool {
+        const ti = @typeInfo(Self);
+        inline for (ti.Struct.decls) |f_decl| {
+            if (std.mem.eql(u8, f_decl.name, self.req.target)) {
+                const f = @field(Self, f_decl.name);
+                const fi = @typeInfo(@TypeOf(f));
+                if (fi.Fn.params.len == 1) {
+                    _ = try @call(.auto, f, .{self});
+                } else {
+                    const args_type = fi.Fn.params[fi.Fn.params.len - 1].type.?;
+                    const argsi = @typeInfo(args_type);
+                    var args: args_type = undefined;
+                    inline for (argsi.Struct.fields) |field| {
+                        const str = self.req.get_value(field.name) orelse return error.ArgNotFound;
+                        const field_ti = @typeInfo(field.type);
+                        switch (field_ti) {
+                            .Int => {
+                                @field(args, field.name) = try std.fmt.parseUnsigned(field.type, str, 16);
+                            },
+                            .Enum => {
+                                @field(args, field.name) = try parse_enum(field.type, str, 16);
+                            },
+                            else => {
+                                @field(args, field.name) = str;
+                            },
+                        }
+                    }
+                    try @call(.auto, f, .{ self, args });
+                }
+                return true;
+            }
+        }
+        return false;
+    }
+
+    pub fn @"/register"(self: Self, args: struct { username: []const u8, password: []const u8 }) !void {
+        // TODO: handle args not supplied
+        std.debug.print("New user: {s} {s}\n", .{ args.username, args.password });
+        _ = try Chirp.register_user(self.env, args.username, args.password);
+    }
+    pub fn @"/login"(self: Self, args: struct { username: []const u8, password: []const u8 }) !void {
+        // TODO: handle args not supplied
+        std.debug.print("New login: {s} {s}\n", .{ args.username, args.password });
+        if (Chirp.login_user(self.env, args.username, args.password)) |session_token| {
+            self.res.status = .see_other;
+            try self.res.add_header(
+                "Set-Cookie",
+                .{ "session_token={x}; HttpOnly", .{session_token} },
+            );
+        } else |err| {
+            std.debug.print("login_user err: {}\n", .{err});
+        }
+    }
+    pub fn @"/logout"(self: Self) !void {
+        if (self.logged_in) |login| {
+            try Chirp.logout_user(self.env, login.session_token);
+
+            try self.res.add_header(
+                "Set-Cookie",
+                .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
+            );
+        }
+    }
+    pub fn @"/set_username"(self: Self, args: struct { username: []const u8 }) !void {
+        const login = self.logged_in orelse return error.NotLoggedIn;
+        const username = try Username.fromSlice(args.username);
+
+        const txn = try self.env.txn();
+        defer txn.commit() catch {};
+
+        const user_ids = try Db.user_ids(txn);
+
+        if (!try user_ids.has(username)) {
+            try user_ids.del(login.user.name);
+            try user_ids.put(username, login.user.id);
+
+            const users = try Db.users(txn);
+            var user = login.user;
+            user.name = username;
+            try users.put(login.user.id, user);
+        }
+    }
+    pub fn @"/set_display_name"(self: Self, args: struct { display_name: []const u8 }) !void {
+        const login = self.logged_in orelse return error.NotLoggedIn;
+        const display_name = try DisplayName.fromSlice(args.display_name);
+
+        const txn = try self.env.txn();
+        defer txn.commit() catch {};
+
+        const users = try Db.users(txn);
+        var user = login.user;
+        user.display_name = display_name;
+        try users.put(login.user.id, user);
+    }
+    pub fn @"/set_description"(self: Self, args: struct { description: []const u8 }) !void {
+        const login = self.logged_in orelse return error.NotLoggedIn;
+        const description = try reencode(UserDescription, args.description);
+
+        const txn = try self.env.txn();
+        defer txn.commit() catch {};
+
+        const users = try Db.users(txn);
+        var user = login.user;
+        user.description = description;
+        try users.put(login.user.id, user);
+    }
+    pub fn @"/set_password"(self: Self, args: struct { password: []const u8 }) !void {
+        const login = self.logged_in orelse return error.NotLoggedIn;
+
+        const txn = try self.env.txn();
+        defer txn.commit() catch {};
+
+        const users = try Db.users(txn);
+        var user = login.user;
+        user.password_hash = try Chirp.hash_password(args.password);
+        try users.put(login.user.id, user);
+    }
+    pub fn @"/post"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const text = self.req.get_value("text").?;
+            const has_referer = self.req.get_value("referer");
+
+            try Chirp.post(self.env, login.user.id, text);
+
+            if (has_referer) |r| {
+                const decoded = try decode(r);
+                try self.res.redirect(decoded.constSlice());
+            }
+        }
+    }
+    pub fn @"/comment"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const text = self.req.get_value("text") orelse return error.NoText;
+            const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
+            const post_id = try parse_enum(PostId, post_id_str, 16);
+
+            try Chirp.comment(self.env, login.user.id, post_id, text);
+        }
+    }
+    pub fn @"/quote"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const text = self.req.get_value("text") orelse return error.NoText;
+            const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
+            const has_referer = self.req.get_value("referer");
+
+            const post_id = try parse_enum(PostId, post_id_str, 16);
+
+            try Chirp.quote(self.env, login.user.id, post_id, text);
+
+            if (has_referer) |r| {
+                const decoded = try decode(r);
+                try self.res.redirect(decoded.constSlice());
+            }
+        }
+    }
+    // TODO: add arguments instead of parsing manually
+    pub fn @"/create_list"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const name_str = self.req.get_value("name") orelse return error.NoName;
+            const name = try Name.fromSlice(name_str);
+            // TODO: decode name
+
+            var txn = try self.env.txn();
+            const postlist = try PostList.init(txn);
+            try txn.commit();
+
+            txn = try self.env.txn();
+            var post_lists_view = try login.user.post_lists.open(txn);
+            _ = try post_lists_view.append(.{ .name = name, .list = postlist });
+            try txn.commit();
+        }
+    }
+    pub fn @"/delete_list"(self: Self, args: struct { list_id: PostList.Base.Index }) !void {
+        if (self.logged_in) |login| {
+            var post_list: ?PostList = null;
+            {
+                const txn = try self.env.txn();
+                defer txn.commit() catch {};
+                var post_lists_view = try login.user.post_lists.open(txn);
+                post_list = (try post_lists_view.get(args.list_id)).list;
+                try post_lists_view.del(args.list_id);
+            }
+            if (post_list != null) {
+                const txn = try self.env.txn();
+                defer txn.commit() catch {};
+                var list_view = try post_list.?.open(txn);
+                try list_view.clear();
+            }
+        }
+    }
+    pub fn @"/list_add"(self: Self, args: struct { list_id: PostList.Base.Index, post_id: PostId }) !void {
+        if (self.logged_in) |login| {
+            _ = login;
+
+            const txn = try self.env.txn();
+            defer txn.commit() catch {};
+
+            const post_list = PostList{ .base = .{ .idx = args.list_id } };
+            var post_list_view = try post_list.open(txn);
+            if (try post_list_view.has(args.post_id)) {
+                try post_list_view.del(args.post_id);
+            } else {
+                try post_list_view.append(args.post_id);
+            }
+        }
+    }
+    pub fn @"/create_feed"(self: Self) !void {
+        if (self.logged_in) |login| {
+            const name_str = self.req.get_value("name") orelse return error.NoName;
+            const name = try Name.fromSlice(name_str);
+
+            var txn = try self.env.txn();
+            const userlist = try UserList.init(txn);
+            try txn.commit();
+
+            txn = try self.env.txn();
+            var feeds_view = try login.user.feeds.open(txn);
+            _ = try feeds_view.append(.{ .name = name, .list = userlist });
+            try txn.commit();
+        }
+    }
+    pub fn @"/delete_feed"(self: Self, args: struct { list_id: UserList.Base.Index }) !void {
+        if (self.logged_in) |login| {
+            var user_list: ?UserList = null;
+
+            {
+                const txn = try self.env.txn();
+                defer txn.commit() catch {};
+                var feeds_view = try login.user.feeds.open(txn);
+                user_list = (try feeds_view.get(args.list_id)).list;
+                try feeds_view.del(args.list_id);
+            }
+            if (user_list != null) {
+                const txn = try self.env.txn();
+                defer txn.commit() catch {};
+                var list_view = try user_list.?.open(txn);
+                try list_view.clear();
+            }
+        }
+    }
+    pub fn @"/feed_add"(self: Self, args: struct { feed_id: UserList.Base.Index, user_id: UserId }) !void {
+        if (self.logged_in) |login| {
+            _ = login;
+
+            const txn = try self.env.txn();
+            defer txn.commit() catch {};
+
+            const user_list = UserList{ .base = .{ .idx = args.feed_id } };
+            var user_list_view = try user_list.open(txn);
+            if (try user_list_view.has(args.user_id)) {
+                try user_list_view.del(args.user_id);
+            } else {
+                try user_list_view.append(args.user_id);
+            }
+        }
+    }
+    pub fn @"/upvote"(self: Self) !void {
+        const login = self.logged_in orelse return error.NotLoggedIn;
+
+        const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
+        const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 16));
+
+        try Chirp.vote(self.env, post_id, login.user.id, .Up);
+    }
+    pub fn @"/downvote"(self: Self) !void {
+        const login = self.logged_in orelse return error.NotLoggedIn;
+
+        const post_id_str = self.req.get_value("post_id") orelse return error.NoPostId;
+        const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 16));
+
+        try Chirp.vote(self.env, post_id, login.user.id, .Down);
+    }
+    pub fn @"/follow"(self: Self) !void {
+        const login = self.logged_in orelse return error.NotLoggedIn;
+
+        const user_id_str = self.req.get_value("user_id") orelse return error.NoUserId;
+        const user_id: UserId = @enumFromInt(try std.fmt.parseUnsigned(u64, user_id_str, 16));
+
+        try Chirp.follow(self.env, login.user.id, user_id);
+    }
+    pub fn @"/quit"(self: Self) !void {
+        if (self.req.get_header("Referer")) |ref| {
+            try self.res.redirect(ref);
+        } else {
+            try self.res.redirect("/");
+        }
+        try self.res.send();
+        // break :accept;
+    }
+};
 // }}}
 
 fn list_users(env: lmdb.Env) !void {
@@ -817,6 +1654,11 @@ const ReqBufferSize = 4096;
 const ResHeadBufferSize = 1024 * 64;
 const ResBodyBufferSize = 1024 * 64;
 
+// TODO: static?
+var req_buffer: [ReqBufferSize]u8 = undefined;
+var res_head_buffer: [ResHeadBufferSize]u8 = undefined;
+var res_body_buffer: [ResBodyBufferSize]u8 = undefined;
+
 pub fn main() !void {
     // server
     var server = try http.Server.init("::", 8080);
@@ -835,7 +1677,16 @@ pub fn main() !void {
     std.debug.print("Posts:\n", .{});
     try list_posts(env);
 
-    try handle_connection(&server, &env);
+    while (true) {
+        server.wait();
+        while (true) {
+            const req = (server.next_request(&req_buffer) catch break) orelse break;
+            // handle_request(env, req) catch {
+            //     try handle_error(env, req);
+            // };
+            try handle_request(env, req);
+        }
+    }
     // const ThreadCount = 1;
     // var ts: [ThreadCount]std.Thread = undefined;
 
@@ -849,465 +1700,64 @@ pub fn main() !void {
     std.debug.print("done\n", .{});
 }
 
-fn handle_connection(server: *http.Server, env: *lmdb.Env) !void {
-    // TODO: static?
-    var req_buffer: [ReqBufferSize]u8 = undefined;
-    var res_head_buffer: [ResHeadBufferSize]u8 = undefined;
-    var res_body_buffer: [ResBodyBufferSize]u8 = undefined;
-
-    accept: while (true) {
-        server.wait();
-
-        while (try server.next_request(&req_buffer)) |*_req| {
-            var req: *http.Request = @constCast(_req);
-            // std.debug.print("[{}]: {s}\n", .{ req.method, req.target });
-
-            // reponse
-            var res = http.Response.init(req.fd, &res_head_buffer, &res_body_buffer);
-
-            // check session token
-            var logged_in: ?Login = null;
-
-            if (req.get_cookie("session_token")) |session_token_str| {
-                var remove_session_token = true;
-
-                if (std.fmt.parseUnsigned(SessionToken, session_token_str, 16) catch null) |session_token| {
-                    // const session_token = try std.fmt.parseUnsigned(SessionToken, session_token_str, 10);
-                    // const session_token = std.mem.bytesToValue(SessionToken, session_token_str);
-                    if (Chirp.get_session_user_id(env, session_token) catch null) |user_id| {
-                        const txn = try env.txn();
-                        defer txn.abort();
-                        const users = try Db.users(txn);
-
-                        logged_in = .{
-                            .user = try users.get(user_id),
-                            .session_token = session_token,
-                        };
-
-                        remove_session_token = false;
-                    }
-                }
-
-                if (remove_session_token) {
-                    try res.add_header(
-                        "Set-Cookie",
-                        .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
-                    );
-                }
-            }
-
-            // TODO: refactor into functions
-            // TODO: make sure we send a reply
-
-            // html
-            if (req.method == .GET) {
-                try write_start(&res);
-                try write_header(&res, logged_in);
-
-                const txn = try env.txn();
-                defer txn.abort();
-
-                if (std.mem.startsWith(u8, req.target, "/user/")) {
-                    const username = req.target[6..req.target.len];
-
-                    const user_ids = try Db.user_ids(txn);
-                    if (user_ids.get(try Username.fromSlice(username))) |user_id| {
-                        const users = try Db.users(txn);
-                        const user = try users.get(user_id);
-
-                        const following = try user.following.open(txn);
-                        const followers = try user.followers.open(txn);
-
-                        try res.write(
-                            \\<h2 style="display: inline;"><a href="/user/{s}">{s}</a></h2>
-                        , .{
-                            user.name.constSlice(), user.display_name.constSlice(),
-                        });
-                        if (logged_in != null and user_id != logged_in.?.user.id) {
-                            if (try followers.has(logged_in.?.user.id)) {
-                                try html_form(&res, "/follow", .{}, .{
-                                    .{ "type=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user_id)} },
-                                    \\type="submit" value="Unfollow"
-                                });
-                            } else {
-                                try html_form(&res, "/follow", .{}, .{
-                                    .{ "type=\"hidden\" name=\"user_id\" value=\"{x}\"", .{@intFromEnum(user_id)} },
-                                    \\type="submit" value="Follow"
-                                });
-                            }
-                        }
-                        try res.write(
-                            \\ <a href="/following/{s}">{} following</a>
-                            \\ <a href="/followers/{s}">{} followers</a>
-                            \\<br />
-                        , .{
-                            user.name.constSlice(), following.len(),
-                            user.name.constSlice(), followers.len(),
-                        });
-
-                        if (logged_in != null and user_id == logged_in.?.user.id) {
-                            try res.write(
-                                \\<a href="/lists">Lists</a>
-                                \\<a href="/feeds">Feeds</a>
-                                \\<a href="/edit">Edit</a><br />
-                                \\<br />
-                            , .{});
-                        }
-
-                        try res.write("<br />", .{});
-
-                        try write_posts(&res, txn, logged_in, user.posts);
-                    } else |err| {
-                        try res.write(
-                            \\<p>User not found [{}]</p>
-                        , .{err});
-                    }
-                } else if (std.mem.startsWith(u8, req.target, "/following/")) {
-                    const username = req.target[11..req.target.len];
-
-                    const user_ids = try Db.user_ids(txn);
-                    if (user_ids.get(try Username.fromSlice(username))) |user_id| {
-                        const users = try Db.users(txn);
-                        const user = try users.get(user_id);
-
-                        const following = try user.following.open(txn);
-                        var it = following.iterator();
-
-                        try res.write(
-                            \\<h2><a href="/user/{s}">{s}</a> follows:</h2>
-                        , .{ user.name.constSlice(), user.display_name.constSlice() });
-
-                        while (it.next()) |following_id| {
-                            const following_user = try users.get(following_id);
-
-                            try res.write(
-                                \\<a href="/user/{s}">{s}</a><br />
-                            , .{ following_user.name.constSlice(), following_user.display_name.constSlice() });
-                        }
-                    } else |err| {
-                        try res.write(
-                            \\<p>User not found [{}]</p>
-                        , .{err});
-                    }
-                } else if (std.mem.startsWith(u8, req.target, "/followers/")) {
-                    const username = req.target[11..req.target.len];
-
-                    const user_ids = try Db.user_ids(txn);
-                    if (user_ids.get(try Username.fromSlice(username))) |user_id| {
-                        const users = try Db.users(txn);
-                        const user = try users.get(user_id);
-
-                        const followers = try user.followers.open(txn);
-                        var it = followers.iterator();
-
-                        try res.write(
-                            \\<h2><a href="/user/{s}">{s}</a> followers:</h2>
-                        , .{ user.name.constSlice(), user.display_name.constSlice() });
-
-                        while (it.next()) |follower_id| {
-                            const follower_user = try users.get(follower_id);
-
-                            try res.write(
-                                \\<a href="/user/{s}">{s}</a><br />
-                            , .{ follower_user.name.constSlice(), follower_user.display_name.constSlice() });
-                        }
-                    } else |err| {
-                        try res.write(
-                            \\<p>User not found [{}]</p>
-                        , .{err});
-                    }
-                } else if (std.mem.startsWith(u8, req.target, "/post/")) {
-                    const post_id_str = req.target[6..req.target.len];
-                    const post_id = try parse_enum(PostId, post_id_str, 16);
-
-                    try write_post(&res, txn, logged_in, post_id, .{
-                        .recurse = 3, // TODO: factor out
-                        .show_comment_field = true,
-                    });
-                } else if (std.mem.startsWith(u8, req.target, "/quotes/")) {
-                    const post_id_str = req.target[8..req.target.len];
-                    const post_id = try parse_enum(PostId, post_id_str, 16);
-
-                    const posts = try Db.posts(txn);
-                    const post = try posts.get(post_id);
-
-                    const referer = if (req.get_header("Referer")) |ref| ref else req.target;
-
-                    try html_form(&res, "/quote", .{}, .{
-                        .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
-                        .{ "type=\"hidden\" name=\"post_id\" value=\"{x}\"", .{@intFromEnum(post.id)} },
-                        "type=\"text\" name=\"text\" placeholder=\"Text\"",
-                        "type=\"submit\" value=\"Quote\"",
-                    });
-                    try res.write("<br />", .{});
-
-                    const quotes_view = try post.quotes.open(txn);
-                    var it = quotes_view.iterator();
-                    while (it.next()) |quote_id| {
-                        try write_post(&res, txn, logged_in, quote_id, .{ .recurse = 1 });
-                        try res.write("<br />", .{});
-                    }
-                } else if (std.mem.startsWith(u8, req.target, "/list/")) {
-                    const list_id_str = req.target[6..req.target.len];
-                    const list_id = try std.fmt.parseUnsigned(PostListList.Index, list_id_str, 16);
-
-                    try write_posts(&res, txn, logged_in, PostList{ .idx = list_id });
-                } else if (std.mem.eql(u8, req.target, "/lists")) {
-                    if (logged_in) |login| {
-                        const post_lists_view = try login.user.post_lists.open(txn);
-
-                        try html_form(&res, "/new_list", .{}, .{
-                            "type=\"text\" name=\"name\"",
-                            "type=\"submit\" value=\"Add\"",
-                        });
-
-                        try res.write("<br /><br />", .{});
-
-                        var it = post_lists_view.iterator();
-                        while (it.next()) |kv| {
-                            const name = kv.val.name;
-                            const post_list = kv.val.list;
-                            try res.write(
-                                \\<a href="/list/{x}">{s}</a><br />
-                            , .{ post_list.idx.?, name.constSlice() });
-                        }
-                    } else {
-                        try res.write("not logged in", .{});
-                    }
-                } else if (std.mem.eql(u8, req.target, "/post")) {
-                    if (logged_in) |login| {
-                        _ = login;
-                        const referer = if (req.get_header("Referer")) |ref| ref else req.target;
-
-                        try html_form(&res, "/post", .{}, .{
-                            .{ "type=\"hidden\" name=\"referer\" value=\"{s}\"", .{referer} },
-                            "type=\"text\" name=\"text\"",
-                            "type=\"submit\" value=\"Post\"",
-                        });
-                    } else {
-                        try res.write("not logged in", .{});
-                    }
-                } else if (std.mem.eql(u8, req.target, "/edit")) {
-                    if (logged_in) |login| {
-                        try res.write("<br />Username: ", .{});
-                        try html_form(&res, "/set_username", .{}, .{
-                            .{ "type=\"text\" name=\"username\" placeholder=\"{s}\"", .{login.user.name.constSlice()} },
-                            "type=\"submit\" value=\"Change\"",
-                        });
-                        try res.write("<br />Display Name: ", .{});
-                        try html_form(&res, "/set_display_name", .{}, .{
-                            .{ "type=\"text\" name=\"display_name\" placeholder=\"{s}\"", .{login.user.display_name.constSlice()} },
-                            "type=\"submit\" value=\"Change\"",
-                        });
-                        try res.write("<br />Password: ", .{});
-                        try html_form(&res, "/set_password", .{}, .{
-                            "type=\"text\" name=\"password\"",
-                            "type=\"submit\" value=\"Change\"",
-                        });
-                    } else {
-                        try res.write("not logged in", .{});
-                    }
-                } else if (std.mem.eql(u8, req.target, "/")) {
-                    if (logged_in) |login| {
-                        try write_timeline(&res, txn, logged_in, login.user.following);
-                    } else {
-                        // TODO: generic home
-                        try res.write("Homepage", .{});
-                    }
-                } else {
-                    try res.redirect("/");
-                }
-                try write_end(&res);
-                try res.send();
-            }
-            // api
-            else {
-                if (std.mem.eql(u8, req.target, "/register")) {
-                    // TODO: handle args not supplied
-                    const username = req.get_value("username").?;
-                    const password = req.get_value("password").?;
-
-                    std.debug.print("New user: {s} {s}\n", .{ username, password });
-                    _ = try Chirp.register_user(env, username, password);
-                } else if (std.mem.eql(u8, req.target, "/login")) {
-                    // TODO: handle args not supplied
-                    const username = req.get_value("username").?;
-                    const password = req.get_value("password").?;
-
-                    std.debug.print("New login: {s} {s}\n", .{ username, password });
-                    if (Chirp.login_user(env, username, password)) |session_token| {
-                        res.status = .see_other;
-                        try res.add_header(
-                            "Set-Cookie",
-                            .{ "session_token={x}; HttpOnly", .{session_token} },
-                        );
-                    } else |err| {
-                        std.debug.print("login_user err: {}\n", .{err});
-                    }
-                } else if (std.mem.eql(u8, req.target, "/logout")) {
-                    if (logged_in) |login| {
-                        try Chirp.logout_user(env, login.session_token);
-
-                        try res.add_header(
-                            "Set-Cookie",
-                            .{"session_token=deleted; Expires=Thu, 01 Jan 1970 00:00:00 GMT"},
-                        );
-                    }
-                } else if (std.mem.eql(u8, req.target, "/set_username")) {
-                    const login = logged_in orelse return error.NotLoggedIn;
-                    const username_str = req.get_value("username") orelse return error.NoUsername;
-                    const username = try Username.fromSlice(username_str);
-
-                    const txn = try env.txn();
-                    defer txn.commit() catch {};
-
-                    const user_ids = try Db.user_ids(txn);
-
-                    if (!try user_ids.has(username)) {
-                        try user_ids.del(login.user.name);
-                        try user_ids.put(username, login.user.id);
-
-                        const users = try Db.users(txn);
-                        var user = login.user;
-                        user.name = username;
-                        try users.put(login.user.id, user);
-                    }
-                } else if (std.mem.eql(u8, req.target, "/set_display_name")) {
-                    const login = logged_in orelse return error.NotLoggedIn;
-                    const display_name_str = req.get_value("display_name") orelse return error.NoDisplayName;
-                    const display_name = try DisplayName.fromSlice(display_name_str);
-
-                    const txn = try env.txn();
-                    defer txn.commit() catch {};
-
-                    const users = try Db.users(txn);
-                    var user = login.user;
-                    user.display_name = display_name;
-                    try users.put(login.user.id, user);
-                } else if (std.mem.eql(u8, req.target, "/set_password")) {
-                    const login = logged_in orelse return error.NotLoggedIn;
-                    const password_str = req.get_value("password") orelse return error.NoPassword;
-
-                    const txn = try env.txn();
-                    defer txn.commit() catch {};
-
-                    const users = try Db.users(txn);
-                    var user = login.user;
-                    user.password_hash = try Chirp.hash_password(password_str);
-                    try users.put(login.user.id, user);
-                } else if (std.mem.eql(u8, req.target, "/post")) {
-                    if (logged_in) |login| {
-                        const text = req.get_value("text").?;
-                        const has_referer = req.get_value("referer");
-
-                        try Chirp.post(env, login.user.id, text);
-
-                        if (has_referer) |r| {
-                            const decoded = try decode(r);
-                            try res.redirect(decoded.constSlice());
-                        }
-                    }
-                } else if (std.mem.eql(u8, req.target, "/comment")) {
-                    if (logged_in) |login| {
-                        const text = req.get_value("text") orelse return error.NoText;
-                        const post_id_str = req.get_value("post_id") orelse return error.NoPostId;
-                        const post_id = try parse_enum(PostId, post_id_str, 16);
-
-                        try Chirp.comment(env, login.user.id, post_id, text);
-                    }
-                } else if (std.mem.eql(u8, req.target, "/quote")) {
-                    if (logged_in) |login| {
-                        const text = req.get_value("text") orelse return error.NoText;
-                        const post_id_str = req.get_value("post_id") orelse return error.NoPostId;
-                        const has_referer = req.get_value("referer");
-
-                        const post_id = try parse_enum(PostId, post_id_str, 16);
-
-                        try Chirp.quote(env, login.user.id, post_id, text);
-
-                        if (has_referer) |r| {
-                            const decoded = try decode(r);
-                            try res.redirect(decoded.constSlice());
-                        }
-                    }
-                } else if (std.mem.eql(u8, req.target, "/new_list")) {
-                    if (logged_in) |login| {
-                        const name_str = req.get_value("name") orelse return error.NoName;
-                        const name = try Name.fromSlice(name_str);
-
-                        var txn = try env.txn();
-
-                        const postlist = try PostList.init(txn);
-                        try txn.commit();
-
-                        txn = try env.txn();
-                        var post_lists_view = try login.user.post_lists.open(txn);
-                        _ = try post_lists_view.append(.{ .name = name, .list = postlist });
-                        try txn.commit();
-                    }
-                } else if (std.mem.eql(u8, req.target, "/list_add")) {
-                    if (logged_in) |login| {
-                        _ = login;
-
-                        const list_id_str = req.get_value("list_id") orelse return error.NoListId;
-                        const post_id_str = req.get_value("post_id") orelse return error.NoPostId;
-                        const list_id = try std.fmt.parseUnsigned(PostList.Index, list_id_str, 16);
-                        const post_id = try parse_enum(PostId, post_id_str, 16);
-
-                        const txn = try env.txn();
-                        defer txn.commit() catch {};
-
-                        const post_list = PostList{ .idx = list_id };
-                        var post_list_view = try post_list.open(txn);
-                        std.debug.print("adding {x} to {x}\n", .{ post_id, list_id });
-                        if (try post_list_view.has(post_id)) {
-                            try post_list_view.del(post_id);
-                        } else {
-                            try post_list_view.append(post_id);
-                        }
-                    }
-                } else if (std.mem.eql(u8, req.target, "/upvote")) {
-                    const login = logged_in orelse return error.NotLoggedIn;
+fn handle_error(env: lmdb.Env, req: http.Request) !void {
+    _ = env;
+    var res = http.Response.init(req, &res_head_buffer, &res_body_buffer);
+    try write_start(&res);
+    try res.write("Oops, something went terribly wrong there D:", .{});
+    try write_end(&res);
+    try res.send();
+}
+fn handle_request(env: lmdb.Env, req: http.Request) !void {
+    // std.debug.print("[{}]: {s}\n", .{ req.method, req.target });
+    // std.debug.print("[{}]: {s}\n", .{ req.method, req.head.? });
 
-                    const post_id_str = req.get_value("post_id") orelse return error.NoPostId;
-                    const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 16));
+    // reponse
+    var res = http.Response.init(req, &res_head_buffer, &res_body_buffer);
 
-                    try Chirp.vote(env, post_id, login.user.id, .Up);
-                } else if (std.mem.eql(u8, req.target, "/downvote")) {
-                    const login = logged_in orelse return error.NotLoggedIn;
+    // check session token
+    const logged_in: ?Login = try check_login(env, req, &res);
 
-                    const post_id_str = req.get_value("post_id") orelse return error.NoPostId;
-                    const post_id: PostId = @enumFromInt(try std.fmt.parseUnsigned(u64, post_id_str, 16));
+    // html
+    if (req.method == .GET) {
+        try write_start(&res);
+        try write_header(&res, logged_in);
 
-                    try Chirp.vote(env, post_id, login.user.id, .Down);
-                } else if (std.mem.eql(u8, req.target, "/follow")) {
-                    const login = logged_in orelse return error.NotLoggedIn;
+        const txn = try env.txn();
+        defer txn.abort();
 
-                    const user_id_str = req.get_value("user_id") orelse return error.NoUserId;
-                    const user_id: UserId = @enumFromInt(try std.fmt.parseUnsigned(u64, user_id_str, 16));
+        const get = GET{
+            .txn = txn,
+            .req = req,
+            .res = &res,
+            .logged_in = logged_in,
+        };
+        if (try get.handle()) {} else {
+            try res.redirect("/");
+        }
 
-                    try Chirp.follow(env, login.user.id, user_id);
-                } else if (std.mem.eql(u8, req.target, "/quit")) {
-                    if (req.get_header("Referer")) |ref| {
-                        try res.redirect(ref);
-                    } else {
-                        try res.redirect("/");
-                    }
-                    try res.send();
-                    break :accept;
-                } else {
-                    try res.write("<p>[POST] {s}</p>", .{req.target});
-                }
+        try write_end(&res);
+        try res.send();
+    }
+    // api
+    else {
+        const post = POST{
+            .env = env,
+            .req = req,
+            .res = &res,
+            .logged_in = logged_in,
+        };
+        if (try post.handle()) {} else {
+            try res.write("<p>[POST] {s}</p>", .{req.target});
+        }
 
-                if (!res.has_header("Location")) {
-                    if (req.get_header("Referer")) |ref| {
-                        try res.redirect(ref);
-                    } else {
-                        try res.redirect("/");
-                    }
-                }
-                try res.send();
+        if (!res.has_header("Location")) {
+            if (req.get_header("Referer")) |ref| {
+                try res.redirect(ref);
+            } else {
+                try res.redirect("/");
             }
         }
+        try res.send();
     }
 }