const std = @import("std");

fn addRunStep(b: *std.build.Builder, exe: *std.build.LibExeObjStep) void {
    const run_cmd = exe.run();
    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);
}

pub fn build(b: *std.build.Builder) void {
    // Standard target options allows the person running `zig build` to choose
    // what target to build for. Here we do not override the defaults, which
    // means any target is allowed, and the default is native. Other options
    // for restricting supported target set are available.
    const target = b.standardTargetOptions(.{});

    // Standard release options allow the person running `zig build` to select
    // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
    const mode = b.standardReleaseOptions();

    // There are some weird problems relating to sentinel values and function pointers
    // when using the stage1 compiler. Just disable it entirely for now.
    //b.use_stage1 = false;

    const exe = b.addExecutable("apub", "src/main/main.zig");
    exe.setTarget(target);
    exe.setBuildMode(mode);

    const util = std.build.Pkg{
        .name = "util",
        .source = std.build.FileSource.relative("src/util/lib.zig"),
    };
    const sql = std.build.Pkg{ .name = "sql", .source = std.build.FileSource.relative("src/sql/lib.zig"), .dependencies = &.{util} };
    const http = std.build.Pkg{
        .name = "http",
        .source = std.build.FileSource.relative("src/http/lib.zig"),
        .dependencies = &.{util},
    };
    exe.addPackage(sql);
    exe.addPackage(util);
    exe.addPackage(http);

    exe.linkSystemLibrary("sqlite3");
    exe.linkLibC();

    exe.install();
    addRunStep(b, exe);
}