const std = @import("std");

const material_max_len_default: usize = 40;
const dimension_max_len_default: usize = 16;

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

    // comptime config options
    const lib_options = blk: {
        const material_max_len = b.option(
            usize,
            "material-max-len",
            "Maximum length a material name can have",
        ) orelse material_max_len_default;

        const options = b.addOptions();
        options.addOption(usize, "material_max_len", material_max_len);

        break :blk options;
    };

    const zap_dep = b.dependency("zap", .{ .openssl = false });
    const clap_dep = b.dependency("clap", .{});

    // craftflut library
    const lib_mod = blk: {
        const mod = b.addModule("craftflut", .{
            .root_source_file = b.path("src/root.zig"),
        });
        mod.addOptions("build_options", lib_options);

        mod.addImport("zap", zap_dep.module("zap"));

        break :blk mod;
    };

    // craftflut executable
    const exe_mod = blk: {
        const mod = b.createModule(.{
            .root_source_file = b.path("src/main.zig"),
            .target = target,
            .optimize = optimize,
        });
        mod.addImport("craftflut", lib_mod);

        mod.addImport("clap", clap_dep.module("clap"));

        break :blk mod;
    };

    const exe = b.addExecutable(.{
        .name = "craftflut",
        .root_module = exe_mod,
    });
    b.installArtifact(exe);

    // run step
    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 lib_unit_tests = b.addTest(.{
    //     .root_module = lib_mod,
    // });

    // const run_lib_unit_tests = b.addRunArtifact(lib_unit_tests);

    // const exe_unit_tests = b.addTest(.{
    //     .root_module = exe_mod,
    // });

    // const run_exe_unit_tests = b.addRunArtifact(exe_unit_tests);

    // // Similar to creating the run step earlier, this exposes a `test` step to
    // // the `zig build --help` menu, providing a way for the user to request
    // // running the unit tests.
    // const test_step = b.step("test", "Run unit tests");
    // test_step.dependOn(&run_lib_unit_tests.step);
    // test_step.dependOn(&run_exe_unit_tests.step);

}