#pragma once

#include <array>
#include <cstdint>
#include <memory>
#include <mutex>
#include <string>
#include <vector>

namespace boundard {

// 渲染组件：描述 Actor 的几何形状、颜色和可选 PNG 纹理。
class Mesh {
   public:
    struct Vertex {
        std::array<float, 2> position;
        std::array<float, 4> color;
        std::array<float, 2> uv;
    };

    std::vector<Vertex> vertices;
    std::vector<uint32_t> indices;
    std::string texture;  // PNG 纹理路径；为空时使用白色纹理。

    std::array<float, 4> color() const {
        std::lock_guard<std::mutex> lock(*color_mutex_);
        return color_;
    }

    void set_color(std::array<float, 4> color) {
        std::lock_guard<std::mutex> lock(*color_mutex_);
        color_ = color;
    }

    static Mesh quad() {
        Mesh mesh;
        mesh.vertices = {
            {{-1.0F, -1.0F}, {1.0F, 1.0F, 1.0F, 1.0F}, {0.0F, 0.0F}},
            {{1.0F, -1.0F}, {1.0F, 1.0F, 1.0F, 1.0F}, {1.0F, 0.0F}},
            {{1.0F, 1.0F}, {1.0F, 1.0F, 1.0F, 1.0F}, {1.0F, 1.0F}},
            {{-1.0F, 1.0F}, {1.0F, 1.0F, 1.0F, 1.0F}, {0.0F, 1.0F}},
        };
        mesh.indices = {0, 1, 2, 2, 3, 0};
        return mesh;
    }

   private:
    std::unique_ptr<std::mutex> color_mutex_ = std::make_unique<std::mutex>();
    std::array<float, 4> color_{1.0F, 1.0F, 1.0F, 1.0F};
};

}  // namespace boundard