// SDL2 Demo by aurelien.esnard@u-bordeaux.fr

#include "model.h"
#include <SDL.h>
#include <SDL_image.h>  // required to load transparent texture from PNG
#include <SDL_ttf.h>    // required to use TTF fonts
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include "game.h"
#include "game_aux.h"
#include "game_ext.h"
#include "game_private.h"
#include "game_tools.h"

/* **************************************************************** */

#define RESTART_UP "../img/restart_up.png"
#define RESTART_DOWN "../img/restart_down.png"
#define UNDO_UP "../img/undo_up.png"
#define UNDO_DOWN "../img/undo_down.png"
#define REDO_UP "../img/redo_up.png"
#define REDO_DOWN "../img/redo_down.png"
#define SOLVE_UP "../img/solve_up.png"
#define SOLVE_DOWN "../img/solve_down.png"

/* **************************************************************** */


struct Env_t {
	game g;
	SDL_Texture** zero;  // array of two texture one white and one red for each number (red color = r:255 g:50 b:50)
	SDL_Texture** one;
	SDL_Texture** two;
	SDL_Texture** three;
	SDL_Texture** four;
	SDL_Texture** lightbulb;  // array of the two lightbulb images first white second red
	SDL_Texture* text_restart;
	SDL_Texture* text_undo;
	SDL_Texture* text_redo;
	SDL_Texture* text_solve;
	SDL_Rect* rec_redo;  //rectangle of each buttons
	SDL_Rect* rec_undo;
	SDL_Rect* rec_restart;
	SDL_Rect* rec_solve;
	SDL_Rect* rec_game;			//rectangle of the grid
	SDL_Rect** tab_rec_game;	//array of rectangles containing each square of the grid
	uint size_game;				//contain the number of squares in the game
};

/* **************************************************************** */

Env* init(SDL_Window* win, SDL_Renderer* ren, int argc, char* argv[]) {
	Env* env = malloc(sizeof(struct Env_t));

	/* PUT YOUR CODE HERE TO INIT TEXTURES, ... */

	return env;
}

/* **************************************************************** */

void render_blank(SDL_Renderer* ren, SDL_Rect* rec, bool lighted) {
	if (lighted) {
		SDL_SetRenderDrawColor(ren, 255, 255, 0, SDL_ALPHA_OPAQUE);
		SDL_RenderFillRect(ren, rec);
	}
	SDL_SetRenderDrawColor(ren, 127, 127, 127, SDL_ALPHA_OPAQUE);
	SDL_RenderDrawRect(ren, rec);
}

void render_wall(SDL_Renderer* ren, Env* env, SDL_Rect* rec, int nb, bool error) {
	SDL_Rect number;
	SDL_SetRenderDrawColor(ren, 0, 0, 0, SDL_ALPHA_OPAQUE);
	SDL_RenderFillRect(ren, rec);
	switch (nb) {
		case 0:
			SDL_QueryTexture(env->zero[error ? 1 : 0], NULL, NULL, &number.w, &number.h);
			number.x = rec->x + rec->w / 2 - number.x / 2;
			number.y = rec->y + rec->h / 2 - number.y / 2;
			SDL_RenderCopy(ren, env->zero[error ? 1 : 0], NULL, &number);
			break;
		case 1:
			SDL_QueryTexture(env->one[error ? 1 : 0], NULL, NULL, &number.w, &number.h);
			number.x = rec->x + rec->w / 2 - number.x / 2;
			number.y = rec->y + rec->h / 2 - number.y / 2;
			SDL_RenderCopy(ren, env->one[error ? 1 : 0], NULL, &number);
			break;
		case 2:
			SDL_QueryTexture(env->two[error ? 1 : 0], NULL, NULL, &number.w, &number.h);
			number.x = rec->x + rec->w / 2 - number.x / 2;
			number.y = rec->y + rec->h / 2 - number.y / 2;
			SDL_RenderCopy(ren, env->two[error ? 1 : 0], NULL, &number);
			break;
		case 3:
			SDL_QueryTexture(env->three[error ? 1 : 0], NULL, NULL, &number.w, &number.h);
			number.x = rec->x + rec->w / 2 - number.x / 2;
			number.y = rec->y + rec->h / 2 - number.y / 2;
			SDL_RenderCopy(ren, env->three[error ? 1 : 0], NULL, &number);
			break;
		case 4:
			SDL_QueryTexture(env->four[error ? 1 : 0], NULL, NULL, &number.w, &number.h);
			number.x = rec->x + rec->w / 2 - number.x / 2;
			number.y = rec->y + rec->h / 2 - number.y / 2;
			SDL_RenderCopy(ren, env->four[error ? 1 : 0], NULL, &number);
			break;
	}
}

void render_lightbulb(SDL_Renderer* ren, SDL_Rect* rec, SDL_Texture* lightbulb_texture) {
	SDL_Rect lightbulb;
	SDL_SetRenderDrawColor(ren, 255, 255, 0, SDL_ALPHA_OPAQUE);
	SDL_RenderFillRect(ren, rec);
	SDL_SetRenderDrawColor(ren, 127, 127, 127, SDL_ALPHA_OPAQUE);
	SDL_RenderDrawRect(ren, rec);
	lightbulb.h = rec->h - rec->h / 10;
	lightbulb.w = rec->w - rec->w / 10;
	lightbulb.x = rec->x + rec->w / 2 - lightbulb.w / 2;
	lightbulb.y = rec->y + rec->h / 2 - lightbulb.h / 2;
	SDL_RenderCopy(ren, lightbulb_texture, NULL, &lightbulb);
}

void render_mark(SDL_Renderer* ren, SDL_Rect* rec, bool lighted) {
	if (lighted)
		SDL_SetRenderDrawColor(ren, 255, 255, 0, SDL_ALPHA_OPAQUE);
	else
		SDL_SetRenderDrawColor(ren, 255, 255, 255, SDL_ALPHA_OPAQUE);
	SDL_RenderFillRect(ren, rec);
	SDL_SetRenderDrawColor(ren, 127, 127, 127, SDL_ALPHA_OPAQUE);
	SDL_RenderDrawRect(ren, rec);
	SDL_SetRenderDrawColor(ren, 0, 0, 0, SDL_ALPHA_OPAQUE);
	SDL_Rect mark;
	mark.h = rec->h / 4;
	mark.w = rec->w / 4;
	mark.x = rec->x + rec->w / 2 - mark.w / 2;
	mark.y = rec->y + rec->h / 2 - mark.h / 2;
	SDL_RenderFillRect(ren, &mark);
}

void render(SDL_Window* win, SDL_Renderer* ren, Env* env) {
	int w, h;
	SDL_GetWindowSize(win, &w, &h);
	// set background color
	SDL_SetRenderDrawColor(ren, 255, 255, 255, SDL_ALPHA_OPAQUE);
	SDL_RenderClear(ren);
	SDL_Rect rec;
	int size_rec = int_min(w / game_nb_cols(env->g), h / game_nb_rows(env->g));
	rec.h = size_rec;
	rec.w = size_rec;
	int rec_x = w / 2 - size_rec * game_nb_cols(env->g) / 2;
	int rec_y = h / 2 - size_rec * game_nb_rows(env->g) / 2;
	rec.x = rec_x;
	rec.y = rec_y;
	for (uint i = 0; i < game_nb_rows(env->g); i++) {
		for (uint j = 0; j < game_nb_cols(env->g); j++) {
			if (game_is_lightbulb(env->g, i, j))
				render_lightbulb(ren, &rec, env->lightbulb[game_has_error(env->g, i, j) ? 1 : 0]);
			else if (game_is_black(env->g, i, j))
				render_wall(ren, env, &rec, game_get_black_number(env->g, i, j), game_has_error(env->g, i, j));
			else if (game_is_blank(env->g, i, j))
				render_blank(ren, &rec, game_is_lighted(env->g, i, j));
			else if (game_is_marked(env->g, i, j))
				render_mark(ren, &rec, game_is_lighted(env->g, i, j));
		}
	}
	rec.x = rec_x;
	rec.y += size_rec;
}

/* **************************************************************** */

bool process(SDL_Window* win, SDL_Renderer* ren, Env* env, SDL_Event* e) {
	int w, h;
	SDL_GetWindowSize(win, &w, &h);

	if (e->type == SDL_QUIT) {
		return true;
	}

#ifdef _ANDROID_
#else

	else if (e->type == SDL_WINDOWEVENT) {
		/*a changer en rapport avec le placement des boutons*/
	} else if (e->type == SDL_MOUSEMOTION) {
		SDL_Point mouse;
		SDL_GetMouseState(&mouse.x, &mouse.y);
		if(SDL_PointInRect(mouse, env->rec_restart)){
			env->text_restart = IMG_LoadTexture(ren, RESTART_DOWN);
			if (!env->text_restart) ERROR("IMG_LoadTexture: %s\n", RESTART_DOWN);
		}
		else if(SDL_PointInRect(mouse, env->rec_undo)){
			env->text_undo = IMG_LoadTexture(ren, UNDO_DOWN);
			if (!env->text_undo) ERROR("IMG_LoadTexture: %s\n", UNDO_DOWN);
		}
		else if(SDL_PointInRect(mouse, env->rec_redo)){
			env->text_redo = IMG_LoadTexture(ren, REDO_DOWN);
			if (!env->text_redo) ERROR("IMG_LoadTexture: %s\n", REDO_DOWN);
		}
		else if(SDL_PointInRect(mouse, env->rec_sove)){
			env->text_solve = IMG_LoadTexture(ren, SOLVE_DOWN);
			if (!env->text_solve) ERROR("IMG_LoadTexture: %s\n", SOLVE_DOWN);
		}else{
			env->text_restart = IMG_LoadTexture(ren, RESTART_UP);
			if (!env->text_restart) ERROR("IMG_LoadTexture: %s\n", RESTART_UP);
			env->text_undo = IMG_LoadTexture(ren, UNDO_UP);
			if (!env->text_undo) ERROR("IMG_LoadTexture: %s\n", UNDO_UP);
			env->text_redo = IMG_LoadTexture(ren, REDO_UP);
			if (!env->text_redo) ERROR("IMG_LoadTexture: %s\n", REDO_UP);
			env->text_solve = IMG_LoadTexture(ren, SOLVE_UP);
			if (!env->text_solve) ERROR("IMG_LoadTexture: %s\n", SOLVE_UP);
		}
	} else if (e->type == SDL_MOUSEBUTTONDOWN) {
		SDL_Point mouse;
		SDL_GetMouseState(&mouse.x, &mouse.y);
		if(SDL_PointInRect(mouse, env->rec_restart)){
			game_restart(env->g);
		}
		else if(SDL_PointInRect(mouse, env->rec_undo)){
			game_undo(env->g);
		}
		else if(SDL_PointInRect(mouse, env->rec_redo)){
			game_redo(env->g);
		}
		else if(SDL_PointInRect(mouse, env->rec_sove)){
			game_solve(env->g);
		}else if (SDL_PointInRect(mouse, env->rec_game)){
			for(uint ind = 0; i < env->size; ind++){
				uint i = ind%(env->g->height);
				uint j = ind/(env->g->width);
				if(SDL_PointInRect(mouse, env->tab_rec_game[ind])){
					if(game_is_blank(env->g, i, j)){
						game_play_move(env->g, i, j, S_LIGHTBULB);
					}else if(game_is_lightbulb(env->g, i, j)){
						game_play_move(env->g, i, j, S_BLANK);
					}
				}
			}
		}
	}
#endif
	return false;
}

/* **************************************************************** */

void clean(SDL_Window* win, SDL_Renderer* ren, Env* env) {
	/* PUT YOUR CODE HERE TO CLEAN MEMORY */

	free(env);
}

/* **************************************************************** */