/*
 * Copyright (C) 2021  P. J. McDermott
 *
 * This file is part of Maze Fight
 *
 * Maze Fight is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Maze Fight is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Maze Fight.  If not, see <http://www.gnu.org/licenses/>.
 */

#include <SDL.h>
#include <SDL_ttf.h>
#include "defs.h"
#include "dirs.h"
#include "game.h"
#include "maze.h"
#include "tk.h"
#include "util.h"

static int
_mf_game_exit(void *user_data __attribute__((__unused__)))
{
	return 1;
}

static struct mftk_widget *
_mf_game_form(SDL_Renderer *renderer, TTF_Font *text_font,
		SDL_Color *text_color)
{
	SDL_Color butn_color;

	butn_color.r = MF_COLOR_BUTN_R, butn_color.g = MF_COLOR_BUTN_G;
	butn_color.b = MF_COLOR_BUTN_B, butn_color.a = MF_COLOR_BUTN_A;

	return mftk_button_new(text_font, "Exit", text_color, &butn_color,
			MF_SPLASH_BTN_P, &_mf_game_exit, NULL, renderer);
}

int
mf_game(long seed, int size, int fow, int reveal, SDL_Renderer *renderer)
{
	struct mf_maze     *maze        = NULL;
	SDL_Color           maze_color;
	char               *font_path   = NULL;
	TTF_Font           *text_font   = NULL;
	SDL_Color           form_color;
	SDL_Color           text_color;
	struct mftk_window *win         = NULL;
	SDL_Event           event;

	/* Create maze */
	maze = mf_maze_new(seed, size, size);
	if (maze == NULL) {
		goto err;
	}
	maze_color.r = MF_COLOR_MAZE_R;
	maze_color.g = MF_COLOR_MAZE_G;
	maze_color.b = MF_COLOR_MAZE_B;
	maze_color.a = MF_COLOR_MAZE_A;

	font_path = mf_strcat(mf_get_fonts_dir(), "/FifteenTwenty-Regular.ttf");
	text_font = TTF_OpenFont(font_path, MF_SPLASH_TEXT_FONT_S);
	if (text_font == NULL) {
		SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
				"Couldn't open font: %s",
				TTF_GetError());
		goto err;
	}
	free(font_path);
	font_path = NULL;

	form_color.r = MF_COLOR_FORM_R, form_color.g = MF_COLOR_FORM_G;
	form_color.b = MF_COLOR_FORM_B, form_color.a = MF_COLOR_FORM_A;
	text_color.r = MF_COLOR_FORE_R, text_color.g = MF_COLOR_FORE_G;
	text_color.b = MF_COLOR_FORE_B, text_color.a = MF_COLOR_FORE_A;

	win = mftk_window_new(MF_WINDOW_H, 0, mftk_box_new(
				MF_WINDOW_W - MF_WINDOW_H, MF_WINDOW_H,
				MF_WINDOW_W - MF_WINDOW_H, MF_WINDOW_H,
				MF_SPLASH_FORM_P, &form_color,
				_mf_game_form(renderer, text_font,
					&text_color)));

	while (SDL_WaitEvent(&event)) {
		switch (event.type) {
			case SDL_QUIT:
				goto quit;
			case SDL_KEYDOWN:
				switch (event.key.keysym.sym) {
					case SDLK_ESCAPE:
						goto exit;
				default:
					break;
				}
			default:
				break;
		}
		switch (mftk_window_event(win, &event)) {
			case 0:
				break;
			case 1:
				goto exit;
			default:
				goto err;
		}
		SDL_SetRenderDrawColor(renderer,
				MF_COLOR_BACK_R, MF_COLOR_BACK_G,
				MF_COLOR_BACK_B, MF_COLOR_BACK_A);
		SDL_RenderClear(renderer);
		mf_maze_render(maze, renderer, &maze_color, MF_WINDOW_H / size);
		mftk_window_render(win, renderer);
		SDL_RenderPresent(renderer);
	}

 exit:
	mftk_window_destroy(&win);
	TTF_CloseFont(text_font);
	text_font = NULL;
	mf_maze_destroy(&maze);
	return 0;

 quit:
	mftk_window_destroy(&win);
	TTF_CloseFont(text_font);
	text_font = NULL;
	mf_maze_destroy(&maze);
	return 1;

 err:
	if (font_path != NULL) {
		free(font_path);
	}
	if (text_font != NULL) {
		TTF_CloseFont(text_font);
	}
	mftk_window_destroy(&win);
	mf_maze_destroy(&maze);
	return -1;
}