#include <curses.h>
#include <string.h>
#include <strings.h>
#include <dirent.h>
#include <stdlib.h>
#include <unistd.h>
#include "defines.h"
#include "sorting.h"

extern unsigned int settings;
extern unsigned int file_modifiers;
extern file_data *content_l;
extern file_data *content_m;
extern file_data *content_r;
extern char *path;

unsigned long file_count_l;
unsigned long file_count_m;
unsigned long file_count_r;


void get_dir_size(char *path, unsigned long *file_count, unsigned long *longest_name){
	DIR *dir = opendir(path);
	*longest_name = 256; //magic number originates out of readdir(), unless i implement my own name size function, thisll do
	unsigned long index = 0;
	if (dir) {
		struct dirent *entry;
		while ( (entry=readdir(dir)) ) {
			if (entry->d_name[0] != '.' && !(file_modifiers & FILE_MODIFIERS_HIDDEN_FILES)) {
				index++;
			} else if (file_modifiers & FILE_MODIFIERS_HIDDEN_FILES){
				index++;
			}
		}
	}	
	*file_count = index;
	closedir(dir);
}

void get_dir_content(char *path, unsigned long file_count, unsigned long longest_name, file_data *dir_content){
	DIR *dir = opendir(path);
	if (dir) {
		unsigned long index = 0;
		struct dirent *entry;
		while ( (entry=readdir(dir)) ) { 
			if (entry->d_name[0] != '.' && !(file_modifiers & FILE_MODIFIERS_HIDDEN_FILES)) {
				dir_content[index].file_name = entry->d_name;
				dir_content[index].file_type = entry->d_type;
				index++;
			} else if (file_modifiers & FILE_MODIFIERS_HIDDEN_FILES) {
				dir_content[index].file_name = entry->d_name;
				dir_content[index].file_type = entry->d_type;
				index++;
			}
		}
	}	
	closedir(dir);
}

void print_dir(WINDOW *win, unsigned long file_count, file_data *dir_content){
	for (unsigned long i = 0; i < file_count; i++ ){ //skip index 0 as it is used for metadata like file count
		if (dir_content[i].file_name) {
			wprintw(win, "%s",dir_content[i].file_name);
			wmove(win, i, 1);
		} else {
			wprintw(win, "NULL");
			wmove(win, i, 1);
		}
	}
}

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

	if (wh) {
		if (wh == 1) {
			free(content_m);
			get_dir_size(path, &file_count_m, &longest_name);
			content_m = (file_data*)calloc(file_count_m, sizeof(file_data));
			get_dir_content(path, file_count_m, longest_name, content_m);
			sort_dir(&file_count_m, &longest_name, content_m);
		} else {
			free(content_r);
			get_dir_size(path, &file_count_r, &longest_name);
			content_r = calloc(file_count_r, sizeof(file_data));
			get_dir_content(path, file_count_r, longest_name, content_r);
			sort_dir(&file_count_m, &longest_name, content_r);
		}
	} else {
		free(content_l);
		get_dir_size(path, &file_count_l, &longest_name);
		content_l = calloc(file_count_l, sizeof(file_data));
		get_dir_content(path, file_count_l, longest_name, content_l);
		sort_dir(&file_count_m, &longest_name, content_l);
	}

	return NULL;
}