#include <cstdlib>
#include <filesystem>
#include <iostream>
#include <vector>

namespace raylib {
#include <raylib.h>
}

#include "bounding_box.h"

namespace fs = std::filesystem;

struct Button {
    raylib::Rectangle rect;
    std::string text;
    bool hover = false;

    bool pressed() {
        hover =
            raylib::CheckCollisionPointRec(raylib::GetMousePosition(), rect);
        return hover and
               raylib::IsMouseButtonReleased(raylib::MOUSE_BUTTON_LEFT);
    };

    void draw() const {
        raylib::DrawRectangleRec(rect, raylib::LIGHTGRAY);
        raylib::DrawRectangleLines(rect.x, rect.y, rect.width, rect.height,
                                   raylib::BLUE);
        raylib::DrawText(text.c_str(),
                         (rect.x + rect.width / 2 -
                          raylib::MeasureText(text.c_str(), 10) / 2),
                         rect.y + 11, 10, raylib::DARKBLUE);
    };
};

void draw(const BoundingBox& box) {}

int main(int argc, const char* argv[]) {
    if (argc < 2) {
        std::cerr << "Usage: " << argv[0] << " path/to/image\n";
        return 1;
    }

    const fs::path input(argv[1]);
    if (!fs::exists(input)) {
        std::cerr << "Input file " << input << " does not exist.\n";
        return 1;
    }
    raylib::Vector2 win_size = {800, 450};
    const int padding = 5;
    raylib::Vector2 in_offset = {padding, 40};

    raylib::InitWindow(win_size.x, win_size.y, "netatmo - rect packing");
    raylib::SetTargetFPS(60);

    raylib::Image imOrigin = raylib::LoadImage(input.c_str());
    raylib::ImageFormat(&imOrigin, raylib::PIXELFORMAT_UNCOMPRESSED_R8G8B8A8);
    raylib::Texture2D texture = raylib::LoadTextureFromImage(imOrigin);

    win_size.x = std::max(win_size.x, in_offset.x + texture.width + padding);
    win_size.y = std::max(win_size.y, in_offset.y + texture.height + padding);

    raylib::SetWindowSize(win_size.x, win_size.y);

    Button b_add_box = {{padding, padding, 150, 30}, "Add box"};
    std::vector<BoundingBox> bboxes;

    while (!raylib::WindowShouldClose()) {
        if (b_add_box.pressed()) {
            bboxes.push_back(BoundingBox({0, 0, 20, 20}));
        }

        raylib::BeginDrawing();
        raylib::ClearBackground(raylib::RAYWHITE);

        b_add_box.draw();

        raylib::DrawTexture(texture, in_offset.x, in_offset.y, raylib::WHITE);
        raylib::DrawRectangleLines(in_offset.x, in_offset.y, texture.width,
                                   texture.height, raylib::BLACK);

        raylib::EndDrawing();
    }

    // Cleanup
    raylib::UnloadTexture(texture);
    raylib::UnloadImage(imOrigin);
    raylib::CloseWindow();

    return 0;
}