#include <curses.h>
#include <pthread.h>
#include <dirent.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include "defines.h"
#include "config.h" 


extern unsigned int file_modifiers;
unsigned long selected_file_current;
unsigned long selected_file_last;
extern pthread_mutex_t mutex_selection;
extern pthread_mutex_t mutex_rgt;
extern pthread_mutex_t mutex_mid;
extern file *mid_content;
extern file *lft_content;
extern file *rgt_content;
extern file file_current;


extern char *rgt_buffer;
extern char *btm_buffer;

extern unsigned int status;
void open_with_pass_2();
void rename_hovered_pass_2();
int read_string(WINDOW *win, int y, int x, char *str);

void user_interactions(char *input, WINDOW *win_b) {
	void (*func_ptr)();
	unsigned long i = 0;
	if (status & STATUS_INTERACTIONS_MASK) {
		if (status & STATUS_INTERACTIONS_OPEN_WITH) {
			open_with_pass_2(win_b);
		} else if (status & STATUS_INTERACTIONS_RENAME) {
			rename_hovered_pass_2(win_b);
		}

	}
	for (i = 0; i < binding_count; i++) {
		if (*input == key_binding[i].key[0]) {
			func_ptr = key_binding[i].func;
			func_ptr();
		}
	}
}
void quit_program(){
	status = STATUS_QUIT_PROGRAM;
}
void move_down(){
	pthread_mutex_lock(&mutex_selection);
	/*capping the maximum file is done inside thread_mid */
	selected_file_current++;
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
	pthread_mutex_unlock(&mutex_selection);
}
void move_up(){
	pthread_mutex_lock(&mutex_selection);
	if (selected_file_current != 0) {
		selected_file_current--;
	}
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
	pthread_mutex_unlock(&mutex_selection);
}
void move_right(){
	chdir("..");
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY);
}
void move_left(){
	if (file_current.file_type == FILE_TYPE_DIR || file_current.file_type == FILE_TYPE_SYMLINK) {
		chdir(file_current.file_name);
	} else {
		unsigned long i = 0;
		char *mime = get_mimetype(file_current.file_name);
		for (i = 0; i < mimetype_default_count; i++) {
			if (strstr(mime, mimetype_default_cmd[i].mimetype)) {

				char *cmd = concat(mimetype_default_cmd[i].command, " ./\"");
				cmd = concat(cmd, file_current.file_name);
				cmd = concat(cmd, "\"");
				btm_buffer = malloc(strlen(cmd));
			
				strcpy(btm_buffer, cmd);


				system(cmd);
				status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY | STATUS_UPDATE_SCREEN_RELOAD_FULL);
				break;

			}
		}
		free(mime);
	}
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY);
}
void toggle_hidden_files(){
	file_modifiers ^= FILE_MODIFIERS_HIDDEN_FILES;
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY);
}
void jump_bottom(){
	pthread_mutex_lock(&mutex_selection);
	selected_file_current = 0 - 1;
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
	pthread_mutex_unlock(&mutex_selection);
}
void jump_top(){
	pthread_mutex_lock(&mutex_selection);
	selected_file_current = 0;
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK);
	pthread_mutex_unlock(&mutex_selection);
}

int read_string(WINDOW *win, int y, int x, char *str){
	noecho();
	curs_set(1);

	timeout(-1); /* negative numbers block until enter is pressed */

	unsigned int pass = 0;
	char ch;
	char err = 0;

	wmove(win, y, x);
	while(1) {
		/*ch = mvwgetch(win, y, x + pass);*/
		ch = wgetch(win);
		if (ch == '\n') {
			err = 0;
			break;
		} else if (ch == 27) { /* esc key */
			err = 1;
			break;
		} else if (ch == 127) { /* backspace */
			if (pass > 0) {
				pass--;
				mvwdelch(win, y, pass);
			}
		} else {
			mvwaddch(win, y, x +pass, ch);
			str[pass] = ch;
			pass++;
		}
	}
	str[pass] = '\0';

	timeout(10); 
	noecho();
	curs_set(0);

	return err;
}
void open_with(){
	btm_buffer = concat("open \"", file_current.file_name);
	btm_buffer = concat(btm_buffer, "\" with:");
	status |= (STATUS_UPDATE_SCREEN_0 | STATUS_INTERACTIONS_OPEN_WITH);

}
void open_with_pass_2(WINDOW *win_b){

	unsigned long local_width;
	unsigned long local_height;
	getmaxyx(win_b, local_height, local_width);


	/* TODO(2025-06-22T01:24:36) fix fixed buffer size */
	char *str = malloc(255);
	memset(str, ' ', 255);
	int err = read_string(win_b, local_height - 1, 0 , str);

	
	if (!err) {
		char *cmd = concat(str, " ./\"");
		cmd = concat(cmd, file_current.file_name);
		cmd = concat(cmd, "\"");

		system(cmd);

		free(btm_buffer);
		btm_buffer = cmd;

	}

	status &= ~(STATUS_INTERACTIONS_MASK);
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY | STATUS_UPDATE_SCREEN_RELOAD_FULL);

	free(str);
}

void rename_hovered(){

	btm_buffer = concat("rename \"", file_current.file_name);
	btm_buffer = concat(btm_buffer, "\" to:");
	status |= (STATUS_UPDATE_SCREEN_0 | STATUS_INTERACTIONS_RENAME);

}

void rename_hovered_pass_2(WINDOW *win_b){

	unsigned long local_width;
	unsigned long local_height;
	getmaxyx(win_b, local_height, local_width);

	/* TODO(2025-06-22T01:24:30) fix fixed buffer size */
	char *str = malloc(255);
	memset(str, ' ', 255);
	int err = read_string(win_b, local_height - 1, 0, str);

	
	if (!err) {
		char *cmd = concat("mv ./\"", file_current.file_name);
		cmd = concat(cmd, "\" ./\"");
		cmd = concat(cmd, str);
		cmd = concat(cmd, "\"");
		 
		system(cmd);
		btm_buffer = cmd;
	}

	status &= ~(STATUS_INTERACTIONS_MASK);
	status |= (STATUS_RUN_BACKEND | STATUS_UPDATE_SCREEN_MASK | STATUS_RELOAD_DIRECTORY | STATUS_UPDATE_SCREEN_RELOAD_FULL);

	free(btm_buffer);

	free(str);
}