//
// build
// Zig version: 0.9.0
// Author: Nikolas Wipper
// Date: 2020-02-15
//

const std = @import("std");
const Builder = std.build.Builder;
const raylib = @import("lib.zig").Pkg(".");

const Program = struct {
    name: []const u8,
    path: []const u8,
    desc: []const u8,
};

pub fn build(b: *Builder) void {
    const mode = b.standardReleaseOptions();
    const target = b.standardTargetOptions(.{});

    const examples = [_]Program{
        .{
            .name = "basic_window",
            .path = "examples/core/basic_window.zig",
            .desc = "Creates a basic window with text",
        },
        .{
            .name = "input_keys",
            .path = "examples/core/input_keys.zig",
            .desc = "Simple keyboard input",
        },
        .{
            .name = "input_mouse",
            .path = "examples/core/input_mouse.zig",
            .desc = "Simple mouse input",
        },
        .{
            .name = "input_mouse_wheel",
            .path = "examples/core/input_mouse_wheel.zig",
            .desc = "Mouse wheel input",
        },
        .{
            .name = "input_multitouch",
            .path = "examples/core/input_multitouch.zig",
            .desc = "Multitouch input",
        },
        .{
            .name = "2d_camera",
            .path = "examples/core/2d_camera.zig",
            .desc = "Shows the functionality of a 2D camera",
        },
        // .{
        //     .name = "models_loading",
        //     .path = "examples/models/models_loading.zig",
        //     .desc = "Loads a model and renders it",
        // },
        // .{
        //     .name = "shaders_basic_lighting",
        //     .path = "examples/shaders/shaders_basic_lighting.zig",
        //     .desc = "Loads a model and renders it",
        // },
    };

    const examples_step = b.step("examples", "Builds all the examples");
    const system_lib = b.option(bool, "system-raylib", "link to preinstalled raylib libraries") orelse false;

    for (examples) |ex| {
        const exe = b.addExecutable(ex.name, ex.path);

        exe.setBuildMode(mode);
        exe.setTarget(target);

        raylib.link(exe, system_lib);
        raylib.addAsPackage("raylib", exe);
        raylib.math.addAsPackage("raylib-math", exe);

        const run_cmd = exe.run();
        const run_step = b.step(ex.name, ex.desc);
        run_step.dependOn(&run_cmd.step);
        examples_step.dependOn(&exe.step);
    }
}