// Array of page owners
pageowners = [];

// String repeat.
if (!String.prototype.repeat) {
	String.prototype.repeat = function(count) {
		'use strict';
		if (this == null) {
			throw new TypeError('can\'t convert ' + this + ' to object');
		}
		var str = '' + this;
		count = +count;
		if (count != count) {
			count = 0;
		}
		if (count < 0) {
			throw new RangeError('repeat count must be non-negative');
		}
		if (count == Infinity) {
			throw new RangeError('repeat count must be less than infinity');
		}
		count = Math.floor(count);
		if (str.length == 0 || count == 0) {
			return '';
		}
		// Ensuring count is a 31-bit integer allows us to heavily optimize the
		// main part. But anyway, most current (August 2014) browsers can't handle
		// strings 1 << 28 chars or longer, so:
		if (str.length * count >= 1 << 28) {
			throw new RangeError('repeat count must not overflow maximum string size');
		}
		var rpt = '';
		for (;;) {
			if ((count & 1) == 1) {
				rpt += str;
			}
			count >>>= 1;
			if (count == 0) {
				break;
			}
			str += str;
		}
		return rpt;
	};
}

/**
 * Turn off the cursor
 */
function cursorOff() {
	ansi.send('ext_mode','clear','cursor');
	console.gotoxy(0,24);
}

/**
 * Find a message base by code
 *
 * @param code
 * @returns {number | string|boolean}
 */
function findMsgBase(code) {
	if (! code)
		code = "tex_data";

	// Find the actual sub-code
	var sub_code;

	for (var s in msg_area.sub) {
		var sub = msg_area.sub[s];

		if (sub.code.substr(-code.length).toLowerCase() == code)
			return sub.code;
	}

	return false;
}

/**
 * Return an argument from argv, or an error if it doesnt exit
 *
 * @param key
 * @param error
 */
function getArg(key,error,abort) {
	index = argv.indexOf(key);

	if ((index !== -1) && (! (argv[index+1] === undefined || argv[index+1].match(/^-/)))) {
		return argv[index+1];
	}

	if (abort) {
		log(LOG_ERROR,error);
		exit(1);
	}
}

function loadOptions() {
	ini = new File(file_cfgname(system.mods_dir,'ansitex/ctrl/videotex.ini'));

	if (!ini.open("r")) {
		return undefined;
	}

	val = ini.iniGetObject(null);

	ini.close();

	return val;
}

function msgBaseImport(msgbase,page,text) {
	var msgbase = new MsgBase(findMsgBase(msgbase));

	log(LOG_DEBUG,'Sending ['+page+'] to message base ['+msgbase.cfg.code+']');

	var hdr = { to:'All', from:'Videotex', subject:'Frame: '+page };

	var body = '';
	body += text+"\r\n";
	body += "--- " + js.exec_file + " " + '1.0' + "\r\n";

	return msgbase.save_msg(hdr, body);
}

/**
 * Return the frame as a string
 */
function pageStr(page) {
	if (page.frame==null)
		return null;

	if (! page.index)
		page.index = 'a';

	return page.frame.toString()+page.index;
}

/**
 * Read our videotex.ini configuration and determine who owns a page.
 * If there is no prefix for the page, it is owned by the system '0'
 *
 * @param page
 * @returns {undefined}
 */
function pageOwner(page) {
	// Load the owner configuration into memory
	if (! pageowners.length) {
		var f = new File(file_cfgname(system.mods_dir,'ansitex/ctrl/videotex.ini'));

		if (f.open("r")) {
			var logo = f.iniGetValue('prefix','logo');
			pageowners.push({prefix: 0,logo: logo});

			f.iniGetSections('prefix:').forEach(function (prefix) {
				var p = parseInt(prefix.substr(7));
				var logo = f.iniGetValue(prefix,'logo','');
				pageowners.push({prefix: p,logo: logo});
			});
		}

		f.close();

		// Sort the pageowners ascending
		pageowners.sort(compare);

		log(LOG_DEBUG,'+ pageOwner: pageowners='+JSON.stringify(pageowners));
	}

	var BreakException = {};
	var pageowner = o = null;

	try {
		pageowners.forEach(function(owner) {
			var p = owner.prefix.toString();
			o = owner;

			//log(LOG_DEBUG,'- pageOwner: p='+p+'('+p.length+') ,o: '+o);
			match = '';

			var re = new RegExp('^' + p, 'g');
			if (page.toString().match(re) && (p.length > match.length)) {
				match = p;
				pageowner = o;
				//log(LOG_DEBUG,'= pageOwner: p='+p+',o: '+o);
				throw BreakException;
			}
		});

	} catch (e) {
		if (e !== BreakException) throw e;
	}

	//log(LOG_DEBUG,'+ pageOwner: page='+page+', owner: '+JSON.stringify(pageowner ? pageowner : o));

	return pageowner ? pageowner : o;
}

function compare(a,b) {
	return (a.prefix < b.prefix) ? 1 : ((b.prefix < a.prefix) ? -1 : 0);
}

/**
 * Send a message to the baseline.
 *
 * @param text
 * @param reposition
 */
function sendBaseline(text,reposition) {
	console.pushxy();
	console.gotoxy(0,24);
	console.print(text);
	console.cleartoeol();

	if (! reposition) {
		console.popxy();
	}
}

this;