const didot = @import("didot/build.zig");
const Builder = @import("std").build.Builder;

pub fn build(b: *Builder) void {
    // ...
    exe.setBuildMode(mode);
    try didot.addEngineToExe(exe, .{
        .prefix = "didot/"
    });
    exe.install();
    // ...
}

const std = @import("std");
const zlm = @import("zlm");
usingnamespace @import("didot-graphics");
usingnamespace @import("didot-objects");
usingnamespace @import("didot-app");

const Vec3 = zlm.Vec3;
const Allocator = std.mem.Allocator;

fn init(allocator: *Allocator, app: *Application) !void {
    var shader = try ShaderProgram.create(@embedFile("vert.glsl"), @embedFile("frag.glsl"));

    var camera = try GameObject.createObject(allocator, null);
    camera.getComponent(Transform).?.* = .{
        .position = Vec3.new(1.5, 1.5, -0.5),
        .rotation = Vec3.new(-120.0, -15.0, 0).toRadians()
    };
    try camera.addComponent(Camera { .shader = shader });
    try app.scene.add(camera);
    
    var cube = try GameObject.createObject(allocator, "Mesh/Cube");
    cube.getComponent(Transform).?.position = Vec3.new(-1.2, 0.75, -3);
    try app.scene.add(cube);
}

pub fn main() !void {
    var gp = std.heap.GeneralPurposeAllocator(.{}) {};
    const allocator = &gp.allocator;

    var scene = try Scene.create(allocator, null);
    comptime var systems = Systems {};
    var app = Application(systems) {
        .title = "Test Cube",
        .initFn = init
    };
    try app.run(allocator, scene);
}

try scene.assetManager.put("Texture/Grass", try TextureAsset.init2D(allocator, "assets/textures/grass.png", "png"));
var material = Material { .texturePath = "Texture/Grass" };
cube.material = material;

fn exampleSystem(query: Query(.{*Transform})) !void {
    var iterator = query.iterator();
    while (iterator.next()) |o| {
        std.log.info("Someone's at position {} !", .{o.transform.position});
    }
}

pub fn main() !void {
    // ...
    comptime var systems = Systems {};
    systems.addSystem(exampleSystem);
    var app = Application(systems) {
        .title = "Test Cube",
        .initFn = init
    };
    try app.run(allocator, scene);
}