#include "articles.h"

#ifdef CONFIG_ARTICLES

//TODO add checkout on size of art it will fix,
//     warn about cutted images
int bbs_article( term_screen *ts, const char *fname )
{
	int ret=-1;
	int i=0;

	FILE *f;
	size_t str_size=0, fret=1;
	char *str=NULL;
	int quit_loop=0;
	int max_row=0;
	int menu_input=0;
	char menu_cmd=0;

	bbs_log_article( NULL );
	
	if ( fname != NULL )
	{
		f = fopen( fname, "r" );
		if ( f == NULL )
		{
			printf("Cannot open article file\n");
			return -1;
		}
		
		term_clr_scr( ts );
		max_row = term_get_maxrow( ts );

		fret = 1;
		i = 0;
		while ( (fret > 0) && (quit_loop == 0) )
		{
			fret = getline( &str, &str_size, f );
			if ( fret > 0 )
			{
				term_cur_set_c( ts, 0 );
				printf("%s", str);
				i += 1;
			}

			if ( i >= max_row )
			{
				term_cur_set_c( ts, 0 );
				term_cur_set_r( ts, max_row );
				printf("(N)ext,(D)ump,(Q)uit:"); fflush( stdout );

				menu_input = term_getc( ts );
				//if something whent wrong dont know why, need to get some test case
				if ( menu_input == -1 )
					continue;
				menu_cmd = (char)menu_input;

				switch( menu_cmd )
				{
					case 'q':
					case 'Q':
						quit_loop = 1;
						break;
					case 'n':
					case 'N':
						i = 0;
						break;
					//dump whole file to the screen
					case 'd':
					case 'D':
						{
							char *dump_line=NULL;
							size_t dump_line_size=0;
							size_t tmp_size=-1;
							fseek( f, 0, SEEK_SET );							
							while( (tmp_size = getline(&dump_line, &dump_line_size, f)) != -1 )
							{
								term_cur_set_c( ts, 0 );
								printf("%s", dump_line);
							}
							FREE( dump_line );
							term_getc( ts );
						}
						i = 0;
						break;
					default:
						printf("Try more\n");
				}
			}

			if ( (fret == -1) )
				term_getc( ts );
			if ( (fret == -1) )
				break;

		}
		FREE( str );
		fclose( f );
		ret = 0;
	}

	return ret;
}


//just for full fill libc example
static int dir_article_selector (const struct dirent *unused)
{
  return 1;
}

int bbs_article_list( term_screen *ts, const char *dir_name )
{
	int ret=-1;
	int quit_loop=0;
	int menu_input = 0;
	char menu_cmd = 0;

	//list dir
	struct stat path_node;
	struct dirent **eps;
	int n;

	//get all articles names in list and use list every time needed
	List *dir_list = llist_new();

	bbs_log_article_list( NULL );

	if ( dir_name != NULL )
	{
		//should have some bugs be carefull
		n = scandir( dir_name, &eps, dir_article_selector, alphasort );
		if ( n >= 0)
		{
			int cnt;
			for ( cnt=0; cnt<n; cnt++)
			{
				size_t tmp_size = strlen( eps[cnt]->d_name );
				char *cnct_path = malloc( tmp_size + strlen(dir_name)+1);
				memcpy( cnct_path, dir_name, strlen(dir_name));
				memcpy( cnct_path+sizeof(dir_name)+2, eps[cnt]->d_name, 
					tmp_size+1 );

				//check if its file
				if ( stat( cnct_path, &path_node ) == 0 )
				{
					if ( path_node.st_mode & S_IFREG )
					{
						llist_push( dir_list, cnct_path );
					} else
					{
						free( cnct_path );
					}
				} else 
				{
					free( cnct_path );
				}
				free( eps[cnt] );
			}
			free( eps );
		} else
		{
			printf("Err\n");
			ERROR("Cannot open article directory\n");
		}
		ret = 0;
	}


	quit_loop = 0;
	while ( (quit_loop == 0) )
	{
		term_clr_scr( ts );
		term_cur_set_c( ts, 0 );
		printf("(L)ist articles,(R)read article,(Q)uit");
		fflush( stdout );

		term_cur_set_c( ts, 0 );
		term_cur_set_r( ts, term_get_maxrow( ts ) );
		printf(":"); fflush( stdout );

		menu_input = term_getc( ts );
		//if something whent wrong dont know why, need to get some test case
		if ( menu_input == -1 )
			continue;
		menu_cmd = (char)menu_input;

		switch( menu_cmd )
		{
			case 'q':
			case 'Q':
				quit_loop = 1;
				break;
			case 'l':
			case 'L':
				{
					term_cur_set_r( ts, 2 );
					//print list of articles
					struct ListNode *iter=dir_list->first;
					int cnt = 1;
					while (iter != NULL)
					{
						term_cur_set_c( ts, 0 );
						printf( "[%02d] %s\n", cnt, (char *)iter->val);
						cnt += 1;
						iter = iter->next;
					}
					term_getc( ts );
				}
				break;
			case 'r':
			case 'R':
				{
					//while there is no more 10 articles use only 1 number
					//TODO fix that
					term_cur_set_c( ts, 0 );
					printf("Input article number 0-9:"); fflush( stdout );
					int article_input = term_getc( ts );
					//if something whent wrong dont know why, need to get some test case
					char article_number = (char)article_input-'0';

					if ( article_number > 0 && article_number < 10)
					{
						struct ListNode *iter = dir_list->first;
						int cnt = 1;
						while ( iter != NULL )
						{
							if ( cnt == article_number )
							{
								bbs_article( ts, iter->val );
								break;
							}
							cnt += 1;
							iter = iter->next;
						}
					}
				}
				break;
			default:
				printf("Try more\n");
		}
	}

	llist_free( dir_list );


	return ret;
}

#endif