/**
 * @file tetris.h
 * @author techniccontroller (mail[at]techniccontroller.com)
 * @brief Class definition for tetris game
 * @version 0.1
 * @date 2022-03-05
 *
 * @copyright Copyright (c) 2022
 *
 * main tetris code originally written by Klaas De Craemer, Ing. David Hrbaty
 *
 */
#ifndef TETRIS_H
#define TETRIS_H

#include <Arduino.h>
#include "ledmatrix.h"
#include "udp_logger.h"

#ifdef DEBOUNCE_TIME
#undef DEBOUNCE_TIME
#endif
#define DEBOUNCE_TIME 100

#define RED_END_TIME 1500
#define GAME_STATE_RUNNING 1
#define GAME_STATE_END 2
#define GAME_STATE_INIT 3
#define GAME_STATE_PAUSED 4
#define GAME_STATE_READY 5

// common
#define DIR_UP 1
#define DIR_DOWN 2
#define DIR_LEFT 3
#define DIR_RIGHT 4
// Maximum size of bricks. Individual bricks can still be smaller (eg 3x3)
#define GREEN 0x008000
#define RED 0xFF0000
#define BLUE 0x0000FF
#define YELLOW 0xFFFF00
#define CHOCOLATE 0xD2691E
#define PURPLE 0xFF00FF
#define WHITE 0XFFFFFF
#define AQUA 0x00FFFF
#define HOTPINK 0xFF1493
#define DARKORANGE 0xFF8C00

#define MAX_BRICK_SIZE 4
#define BRICKOFFSET -1 // Y offset for new bricks

#define INIT_SPEED 800 // Initial delay in ms between brick drops
#define SPEED_STEP 10  // Factor for speed increase between levels, default 10
#define LEVELUP 4      // Number of rows before levelup, default 5

#define WIDTH 11
#define HEIGHT 11

class Tetris
{

    // Playing field
    struct Field
    {
        uint8_t pix[MATRIX_WIDTH][MATRIX_HEIGHT + 1]; // Make field one larger so that collision detection with bottom of field can be done in a uniform way
        uint32_t color[MATRIX_WIDTH][MATRIX_HEIGHT];
    };

    // Structure to represent active brick on screen
    struct Brick
    {
        boolean enabled; // Brick is disabled when it has landed
        int xpos, ypos;

        int yOffset; // Y-offset to use when placing brick at top of field
        uint8_t siz;
        uint8_t pix[MAX_BRICK_SIZE][MAX_BRICK_SIZE];

        uint32_t col;
    };

    // Struct to contain the different choices of blocks
    struct AbstractBrick
    {
        int yOffset; // Y-offset to use when placing brick at top of field
        uint8_t siz;
        uint8_t pix[MAX_BRICK_SIZE][MAX_BRICK_SIZE];
        uint32_t col;
    };

public:
    Tetris();
    Tetris(LEDMatrix *myledmatrix, UDPLogger *mylogger);

    void ctrlStart();
    void ctrlPlayPause();
    void ctrlRight();
    void ctrlLeft();
    void ctrlUp();
    void ctrlDown();
    void setSpeed(int32_t i);

    void loopCycle();

private:
    void resetLEDs();
    void tetrisInit();
    void printField();

    /* *** Game functions *** */
    void newActiveBrick();
    boolean checkFieldCollision(struct Brick *brick);
    boolean checkSidesCollision(struct Brick *brick);
    void rotateActiveBrick();
    void shiftActiveBrick(int dir);
    void addActiveBrickToField();
    void moveFieldDownOne(uint8_t startRow);
    void checkFullLines();

    void clearField();
    void everythingRed();
    void showscore();

    LEDMatrix *_ledmatrix;
    UDPLogger *_logger;
    Brick _activeBrick = {0};
    Field _field;

    bool _allowdrop = false;
    bool _tetrisGameOver = false;
    int _gameStatet = GAME_STATE_INIT;
    int _score = 0;
    unsigned int _speedtetris = 80;
    unsigned long _brickSpeed = 0;
    unsigned long _droptime = 0;
    unsigned long _lastButtonClick = 0;
    unsigned long _lastButtonClickr = 0;
    unsigned long _nbRowsThisLevel = 0;
    unsigned long _nbRowsTotal = 0;
    unsigned long _prevUpdateTime = 0;
    unsigned long _tetrisshowscore = 0;

    // color library
    uint32_t _colorLib[10] = {RED, GREEN, BLUE, YELLOW, CHOCOLATE, PURPLE, WHITE, AQUA, HOTPINK, DARKORANGE};

    // Brick "library"
    AbstractBrick _brickLib[7] = {
        {1, // yoffset when adding brick to field
         4,
         {{0, 0, 0, 0},
          {0, 1, 1, 0},
          {0, 1, 1, 0},
          {0, 0, 0, 0}},
         WHITE},
        {0,
         4,
         {{0, 1, 0, 0},
          {0, 1, 0, 0},
          {0, 1, 0, 0},
          {0, 1, 0, 0}},
         GREEN},
        {1,
         3,
         {{0, 0, 0, 0},
          {1, 1, 1, 0},
          {0, 0, 1, 0},
          {0, 0, 0, 0}},
         BLUE},
        {1,
         3,
         {{0, 0, 1, 0},
          {1, 1, 1, 0},
          {0, 0, 0, 0},
          {0, 0, 0, 0}},
         YELLOW},
        {1,
         3,
         {{0, 0, 0, 0},
          {1, 1, 1, 0},
          {0, 1, 0, 0},
          {0, 0, 0, 0}},
         AQUA},
        {1,
         3,
         {{0, 1, 1, 0},
          {1, 1, 0, 0},
          {0, 0, 0, 0},
          {0, 0, 0, 0}},
         HOTPINK},
        {1,
         3,
         {{1, 1, 0, 0},
          {0, 1, 1, 0},
          {0, 0, 0, 0},
          {0, 0, 0, 0}},
         RED}};
};

#endif /* TETRIS_H */