#include "../include/core.h"
#include <SFML/System/Vector2.hpp>
#include <SFML/Window/WindowStyle.hpp>
#include <cstdlib>
#include <SFML/Audio/SoundBuffer.hpp>
#include <SFML/Graphics.hpp>
#include <SFML/Graphics/Rect.hpp>
#include <SFML/Audio.hpp>
#include <SFML/Window/Keyboard.hpp>
#include <SFML/Window/VideoMode.hpp>

const int MAX_ENTITIES = 2;
Entity *entities[MAX_ENTITIES];

int main() {
  // sf::Text hud;
  // sf::Font font;
  // font.loadFromFile("assets/fonts/Rajdhani/Rajdhani-Regular.ttf");
  // hud.setFont(font);
  // hud.setCharacterSize(75);
  // hud.setFillColor(sf::Color::White);
  // hud.setPosition(20, 20);

  enum State { PAUSED, LEVELING_UP, GAME_OVER, PLAYING };

  State state = State::GAME_OVER;

  sf::Vector2f resolution;
  resolution.x = sf::VideoMode::getDesktopMode().width;
  resolution.y = sf::VideoMode::getDesktopMode().height;

  sf::VideoMode vm(resolution.x, resolution.y);
  sf::RenderWindow window(vm, "Zombie Shooter", sf::Style::Fullscreen);

  sf::View main_view(sf::FloatRect(0, 0, resolution.x, resolution.y));

  sf::Clock clock;
  sf::Time game_time_total;
  sf::Vector2f mouse_world_position;
  sf::Vector2i mouse_screen_position;

  Player player;

  sf::IntRect arena;


  while (window.isOpen()) {
    // INPUT
    {
      sf::Event event;
      while (window.pollEvent(event)) {
        // if (event.type == sf::Event::Closed) {
        //   window.close();
        // }
        
        if (event.type == sf::Event::KeyPressed) {
          if (event.key.code == sf::Keyboard::Return && state == State::PLAYING) {
            state = State::PAUSED;
          } else if (event.key.code == sf::Keyboard::Return && state == State::PAUSED) {
            state = State::PLAYING;
            // Restart clock so there isn't a frame jump
            clock.restart();
          } else if (event.key.code == sf::Keyboard::Return && state == State::GAME_OVER) {
            state = State::LEVELING_UP;
          }

          if (state == State::PLAYING) {
            
          }
        }
      }

      if (sf::Keyboard::isKeyPressed(sf::Keyboard::Escape)) {
        window.close();
      }

      // Player movement
      if (sf::Keyboard::isKeyPressed(sf::Keyboard::W)) {
        player.up_pressed = true;
      } else {
        player.up_pressed = false;
      }

      if (sf::Keyboard::isKeyPressed(sf::Keyboard::A)) {
        player.left_pressed = true;
      } else {
        player.left_pressed = false;
      }

      if (sf::Keyboard::isKeyPressed(sf::Keyboard::S)) {
        player.down_pressed = true;
      } else {
        player.down_pressed = false;
      }

      if (sf::Keyboard::isKeyPressed(sf::Keyboard::D)) {
        player.right_pressed = true;
      } else {
        player.right_pressed = false;
      }

      // LEVELING_UP
      if (state == State::LEVELING_UP) {
        if (event.key.code == sf::Keyboard::Num1) {
          state = State::PLAYING;
        }

        if (event.key.code == sf::Keyboard::Num2) {
          state = State::PLAYING;
        }

        if (event.key.code == sf::Keyboard::Num3) {
          state = State::PLAYING;
        }

        if (event.key.code == sf::Keyboard::Num4) {
          state = State::PLAYING;
        }

        if (event.key.code == sf::Keyboard::Num5) {
          state = State::PLAYING;
        }

        if (event.key.code == sf::Keyboard::Num6) {
          state = State::PLAYING;
        }

        if (state == State::PLAYING) {
          arena.width = 500;
          arena.height = 500;
          arena.left = 0;
          arena.top = 0;
          int tile_size = 50;
          player.spawn(arena, resolution, tile_size);

          // Restart to avoid frame jump
          clock.restart();
        }
      }
    }

    
    


    // UPDATE
    {
      if (state == State::PLAYING) {
        sf::Time delta = clock.restart();

        game_time_total += delta;

        float delta_as_seconds = delta.asSeconds();

        mouse_screen_position = sf::Mouse::getPosition();
        mouse_world_position = window.mapPixelToCoords(mouse_screen_position, main_view);

        player.update(delta_as_seconds, mouse_screen_position);

        // sf::Vector2f player_position(player.position);

        main_view.setCenter(player.position);
      }

      // for (int i = 0; i < MAX_ENTITIES; i++) {
      //   entities[i]->update(delta);
      // }

    }


    // DRAW
    {
      if (state == State::PLAYING) {
        window.clear();
        window.setView(main_view);
        window.draw(player.sprite);
      }

      if (state == State::LEVELING_UP) {
      }

      if (state == State::PAUSED) {
      }

      if (state == State::GAME_OVER) {
      }

      // for (int i = 0; i < MAX_ENTITIES; i++) {
      //   window.draw(entities[i]->shape);
      // }

      window.display();
    }

  }

  return 0;
}