#include "ui.h"
#include "game.h"
#include <math.h>
#include <raylib.h>
#include <stdbool.h>

static bool is_dragging;
static Vector2 drag_start_pos;

void handle_mouse_input(GameState_t *game_state) {
  if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON)) {
    drag_start_pos = GetMousePosition();
    if (drag_start_pos.x >= 500 && drag_start_pos.x <= 775 && drag_start_pos.y >= 455 && drag_start_pos.y <= 479) {
      reset_board(game_state);
      return;
    }

    is_dragging = true;
  } else if (IsMouseButtonReleased(MOUSE_LEFT_BUTTON) && is_dragging) {
    Vector2 current_pos = GetMousePosition();

    float dx = current_pos.x - drag_start_pos.x;
    float dy = current_pos.y - drag_start_pos.y;

    float drag_distance = sqrt(dx * dx + dy * dy);

    // We don't want to register single clicks as a move
    if (drag_distance >= 30) {
      if (fabs(dx) > fabs(dy)) {
        if (dx > 0) {
          move(game_state, RIGHT);
        } else {
          move(game_state, LEFT);
        }
      } else {
        if (dy > 0) {
          move(game_state, DOWN);
        } else {
          move(game_state, UP);
        }
      }
      spawn_tile(game_state);
    }

    is_dragging = false;
  }
}