const std = @import("std");

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

    // Parser executable
    const parser_exe = b.addExecutable(.{
        .name = "sdl-parser",
        .root_module = b.createModule(.{
            .root_source_file = b.path("src/parser.zig"),
            .target = target,
            .optimize = optimize,
        }),
    });

    b.installArtifact(parser_exe);

    // Run command
    const run_cmd = b.addRunArtifact(parser_exe);
    run_cmd.step.dependOn(b.getInstallStep());

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

    const run_step = b.step("run", "Run the SDL3 header parser");
    run_step.dependOn(&run_cmd.step);

    // Test mocks generation target
    const test_mocks_cmd = b.addRunArtifact(parser_exe);
    test_mocks_cmd.step.dependOn(b.getInstallStep());
    
    const test_header_path = b.path("test_small.h");
    const test_output = b.path("zig-out/test_small.zig");
    const test_mocks = b.path("zig-out/test_small_mock.c");
    
    test_mocks_cmd.addArg(test_header_path.getPath(b));
    test_mocks_cmd.addArg(b.fmt("--output={s}", .{test_output.getPath(b)}));
    test_mocks_cmd.addArg(b.fmt("--mocks={s}", .{test_mocks.getPath(b)}));
    
    const test_mocks_step = b.step("test-mocks", "Test mock generation with test_small.h");
    test_mocks_step.dependOn(&test_mocks_cmd.step);

    // Tests
    const parser_tests = b.addTest(.{
        .root_module = b.createModule(.{
            .root_source_file = b.path("src/parser.zig"),
            .target = target,
            .optimize = optimize,
        }),
    });

    const run_tests = b.addRunArtifact(parser_tests);

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