const std = @import("std");

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

    // ===========================================
    // Main library module
    // ===========================================
    const zcatgui_mod = b.createModule(.{
        .root_source_file = b.path("src/zcatgui.zig"),
        .target = target,
        .optimize = optimize,
        .link_libc = true,
    });

    // Link SDL2 to the module
    zcatgui_mod.linkSystemLibrary("SDL2", .{});

    // ===========================================
    // Tests
    // ===========================================
    const lib_unit_tests = b.addTest(.{
        .root_module = b.createModule(.{
            .root_source_file = b.path("src/zcatgui.zig"),
            .target = target,
            .optimize = optimize,
            .link_libc = true,
        }),
    });
    lib_unit_tests.root_module.linkSystemLibrary("SDL2", .{});

    const run_lib_unit_tests = b.addRunArtifact(lib_unit_tests);
    const test_step = b.step("test", "Run unit tests");
    test_step.dependOn(&run_lib_unit_tests.step);

    // ===========================================
    // Examples
    // ===========================================

    // Hello World example
    const hello_exe = b.addExecutable(.{
        .name = "hello",
        .root_module = b.createModule(.{
            .root_source_file = b.path("examples/hello.zig"),
            .target = target,
            .optimize = optimize,
            .link_libc = true,
            .imports = &.{
                .{ .name = "zcatgui", .module = zcatgui_mod },
            },
        }),
    });
    hello_exe.root_module.linkSystemLibrary("SDL2", .{});
    b.installArtifact(hello_exe);

    const run_hello = b.addRunArtifact(hello_exe);
    run_hello.step.dependOn(b.getInstallStep());
    const hello_step = b.step("hello", "Run hello world example");
    hello_step.dependOn(&run_hello.step);

    // Macro demo
    const macro_exe = b.addExecutable(.{
        .name = "macro-demo",
        .root_module = b.createModule(.{
            .root_source_file = b.path("examples/macro_demo.zig"),
            .target = target,
            .optimize = optimize,
            .link_libc = true,
            .imports = &.{
                .{ .name = "zcatgui", .module = zcatgui_mod },
            },
        }),
    });
    macro_exe.root_module.linkSystemLibrary("SDL2", .{});
    b.installArtifact(macro_exe);

    const run_macro = b.addRunArtifact(macro_exe);
    run_macro.step.dependOn(b.getInstallStep());
    const macro_step = b.step("macro-demo", "Run macro recording demo");
    macro_step.dependOn(&run_macro.step);

    // Widgets demo
    const widgets_exe = b.addExecutable(.{
        .name = "widgets-demo",
        .root_module = b.createModule(.{
            .root_source_file = b.path("examples/widgets_demo.zig"),
            .target = target,
            .optimize = optimize,
            .link_libc = true,
            .imports = &.{
                .{ .name = "zcatgui", .module = zcatgui_mod },
            },
        }),
    });
    widgets_exe.root_module.linkSystemLibrary("SDL2", .{});
    b.installArtifact(widgets_exe);

    const run_widgets = b.addRunArtifact(widgets_exe);
    run_widgets.step.dependOn(b.getInstallStep());
    const widgets_step = b.step("widgets-demo", "Run widgets demo");
    widgets_step.dependOn(&run_widgets.step);

    // Table demo
    const table_exe = b.addExecutable(.{
        .name = "table-demo",
        .root_module = b.createModule(.{
            .root_source_file = b.path("examples/table_demo.zig"),
            .target = target,
            .optimize = optimize,
            .link_libc = true,
            .imports = &.{
                .{ .name = "zcatgui", .module = zcatgui_mod },
            },
        }),
    });
    table_exe.root_module.linkSystemLibrary("SDL2", .{});
    b.installArtifact(table_exe);

    const run_table = b.addRunArtifact(table_exe);
    run_table.step.dependOn(b.getInstallStep());
    const table_step = b.step("table-demo", "Run table demo with split panels");
    table_step.dependOn(&run_table.step);
}