#include <curses.h>
#include <string.h>
#include <dirent.h>
#include <stdlib.h>
#include <unistd.h>

extern unsigned int settings;
extern unsigned long longest_name;
extern unsigned long file_count;
extern char **content_l;
extern char **content_m;
extern char **content_r;
extern char *path;

void get_dir_size(char *path, unsigned long *file_count, unsigned long *longest_name){
	DIR *dir = opendir(path);
	if (dir) {
		unsigned long index = 0;
		struct dirent *entry;
		while ( entry=readdir(dir) ) {
			if (entry->d_name[0] != '.' && !(settings & 1)) { //bit 0 = show_hidden_files
				index++;
				if ((unsigned long)sizeof(entry->d_name) > *longest_name) {
					*longest_name = sizeof(entry->d_name);
				}
			} else if (settings & 1){ //bit 0 = show_hidden_files
				index++;
				if ((unsigned long*)sizeof(entry->d_name) > (unsigned long*)longest_name) {
					longest_name = (unsigned long*)sizeof(entry->d_name);
				}
			}
		}
		*file_count = index;
	}	
	closedir(dir);
}

void get_dir_content(char *path, char **dir_content){
	DIR *dir = opendir(path);
	char content[file_count][longest_name];
	memset(content,0,sizeof(content));
	if (dir) {
		int index = 0;
		struct dirent *entry;
		while ( entry=readdir(dir) ) { 
			if (entry->d_name[0] != '.' && !(settings & 1)) { //bit 0 = show_hidden_files
				strcpy(dir_content[index], entry->d_name);
				index++;
			} else if (settings & 1){ //bit 0 = show_hidden_files
				strcpy(dir_content[index], entry->d_name);
				index++;
			}
		}
	}	
	closedir(dir);
}

void print_dir(WINDOW *win, char **dir_content){
	for (unsigned long i = 0; i < (unsigned long)file_count; i++ ){
		wprintw(win, "%s",dir_content[i]);
		wmove(win, i, 1);
	}
}

void *populate_dir(void *which){ // 0=left, 1=main, 2=right
	char wh = (char)which;

	if (wh) {
		if (wh==1) {
			get_dir_size(path, &file_count, &longest_name);
			content_m = calloc(file_count, sizeof(*content_m));
			for (unsigned long i = 0; i<file_count; i++) {
				content_m[i] = calloc(longest_name, sizeof(content_m[i]));
			}
			get_dir_content(path, content_m);
		} else {
			get_dir_size(path, &file_count, &longest_name);
			content_r = calloc(file_count, sizeof(*content_r));
			for (unsigned long i = 0; i<file_count; i++) {
				content_r[i] = calloc(longest_name, sizeof(content_r[i]));
			}
			get_dir_content(path, content_r);
		}
	} else {
		get_dir_size(path, &file_count, &longest_name);
		content_l = calloc(file_count, sizeof(*content_l));
		for (unsigned long i = 0; i<file_count; i++) {
			content_l[i] = calloc(longest_name, sizeof(content_l));
		}
		get_dir_content(path, content_l);
	}

	return NULL;
}