const std = @import("std");

pub fn build(b: *std.Build) void {
    const target = b.standardTargetOptions(.{});

    const optimize = b.standardOptimizeOption(.{});

    const exe = b.addExecutable(.{
        .name = "lmdb",
        // In this case the main source file is merely a path, however, in more
        // complicated build scripts, this could be a generated file.
        .root_source_file = .{ .cwd_relative = "src/main.zig" },
        .target = target,
        .optimize = optimize,
    });

    const epoll = b.addExecutable(.{
        .name = "epoll",
        // In this case the main source file is merely a path, however, in more
        // complicated build scripts, this could be a generated file.
        .root_source_file = .{ .cwd_relative = "src/epoll.zig" },
        .target = target,
        .optimize = optimize,
    });

    const lmdb_mod = b.createModule(.{
        .root_source_file = .{ .cwd_relative = "../ziglmdb/src/lmdb.zig" },
    });
    lmdb_mod.addIncludePath(.{ .cwd_relative = "./lmdb/libraries/liblmdb" });
    lmdb_mod.addCSourceFiles(.{ .files = &.{
        "./lmdb/libraries/liblmdb/midl.c",
        "./lmdb/libraries/liblmdb/mdb.c",
    } });

    exe.root_module.addImport("lmdb", lmdb_mod);
    exe.linkLibC();

    epoll.root_module.addImport("lmdb", lmdb_mod);
    epoll.linkLibC();

    b.installArtifact(exe);

    const run_cmd = b.addRunArtifact(exe);

    run_cmd.step.dependOn(b.getInstallStep());

    if (b.args) |args| {
        run_cmd.addArgs(args);
    }

    const run_step = b.step("run", "Run the app");
    run_step.dependOn(&run_cmd.step);

    const run_epoll_cmd = b.addRunArtifact(epoll);
    const run_epoll_step = b.step("runepoll", "run epoll");
    run_epoll_step.dependOn(&run_epoll_cmd.step);
}