// SPDX-FileCopyrightText: 2021-2023 Yoran Heling <projects@yorhel.nl>
// SPDX-License-Identifier: MIT

const std = @import("std");

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

    const pie = b.option(bool, "pie", "Build with PIE support (by default false)") orelse false;

    const exe = b.addExecutable(.{
        .name = "ncdu",
        .root_source_file = .{ .path = "src/main.zig" },
        .target = target,
        .optimize = optimize,
    });

    // https://github.com/ziglang/zig/blob/b52be973dfb7d1408218b8e75800a2da3dc69108/build.zig#L551-L554
    if (exe.target.isDarwin()) {
        // useful for package maintainers
        exe.headerpad_max_install_names = true;
    }
    linkNcurses(exe);
    exe.pie = pie;
    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 unit_tests = b.addTest(.{
        .root_source_file = .{ .path = "src/main.zig" },
        .target = target,
        .optimize = optimize,
    });
    linkNcurses(unit_tests);
    unit_tests.pie = pie;

    const run_unit_tests = b.addRunArtifact(unit_tests);

    const test_step = b.step("test", "Run unit tests");
    test_step.dependOn(&run_unit_tests.step);
}

pub fn linkNcurses(compile_step: *std.Build.CompileStep) void {
    compile_step.linkSystemLibrary("ncursesw");
    compile_step.linkLibC();
    compile_step.addCSourceFile(.{ .file = .{ .path = "src/ncurses_refs.c" }, .flags = &.{} });
}