#include <assert.h>
#include <dirent.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

#include "../include/read_cfg.h"
#include "../include/entry.h"

char sep = '/';

char *find_config(){
	char *home = getenv("HOME");
	char *path = malloc(sizeof(char) * BUF_LEN);
	char choices[2][BUF_LEN];
	int check_count = 2;
	int i;

	sprintf(choices[0], "%s%c.config%cterminal-media-launcher%cconfig.lua", home, sep, sep, sep);
	sprintf(choices[1], "%s%c.terminal-media-launcher%cconfig.lua", home, sep, sep);

	for(i = 0; i < check_count; i++){
		strcpy(path, choices[i]);
		printf("Checking for config at %s: ", choices[i]);
		if(access(path, R_OK) == 0){
			printf("Using config \"%s\"\n\n", path);
			return path;
		}
		else printf("File does not exist\n");
	}

	mkconfig_wizard(choices[0]);
	strcpy(path, choices[0]);
	return path;
}

void mkconfig_wizard(char *path){
	char input;
	FILE *fp;

	char *home = getenv("HOME");

	printf("\nNo configuration file found. Auto-generate one now at \"%s\"? [Y/n] ", path);
	fflush(stdout);
	scanf(" %c", &input);

	if(input == 'n'){
		printf("Configuration will not be auto-generated\n");
		refer_to_doc();
		exit(0);
		
	}

	printf("Generating configuration file at \"%s\"...\n", path);

	//ensure directories have been created
	if(home == NULL){
		printf("Failed: HOME is NULL\n");
		exit(1);
	}

	sprintf(path, "%s%c.config%c", home, sep, sep);
	mkdir(path, 0755);

	sprintf(path, "%s%c.config%cterminal-media-launcher%c", home, sep, sep, sep);
	mkdir(path, 0755);

	sprintf(path, "%s%c.config%cterminal-media-launcher%cconfig.lua", home, sep, sep, sep);

	//open file for writing, make sure non-NULL
	fp = fopen(path, "w");
	if(fp == NULL){
		printf("Failed: \"%s\" could not be open for writing\n", path);
		exit(1);
	}

	//write to file
	fprintf(fp, "# This file was auto-generated by terminal-media-launcher. See docs/terminal-media-launcher-config.md or terminal-media-launcher-config(5) for documentation\n"
	"# The default launcher is set to \"xdg-open\" which will open files based on the relevant default application set through xdg\n\n"
	"# Recursively add files from %s%cMusic%c to Music group\n"
	"addGroup Music\n"
	"setLauncher Music xdg-open\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.aac Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.aiff Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.alac Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.au Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.flac Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.m4a Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.mp3 Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.ogg Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.pcm Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.wav Music\n", home, sep, sep);
	fprintf(fp, "addR %s%cMusic%c*.wma Music\n\n", home, sep, sep);
	fprintf(fp, "# Recursively add files from %s%cPictures%c to Pictures group\n"
	"addGroup Pictures\n"
	"setLauncher Pictures xdg-open\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.epi Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.eps Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.eps2 Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.eps3 Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.epsf Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.epsi Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.ept Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.gif Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.gfa Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.giff Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.jpeg Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.jpg Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.png Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.svg Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.svgz Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.tif Pictures\n", home, sep, sep);
	fprintf(fp, "addR %s%cPictures%c*.tiff Pictures\n\n", home, sep, sep);
	fprintf(fp, "# Recursively add files from %s%cVideos%c to Videos group\n"
	"addGroup Videos\n"
	"setLauncher Videos xdg-open\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.asf Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.avi Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.flv Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.mk3d Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.mkv Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.mov Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.mp4 Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.qt Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.webm Videos\n", home, sep, sep);
	fprintf(fp, "addR %s%cVideos%c*.wmv Videos\n", home, sep, sep);

	fclose(fp);
	printf("done\nIt is highly recommended to further tweak the configuration file! [press any key to continue]");
	fflush(stdout);
	getchar();
	getchar();

	return;
}