goog.provide('i18n.phonenumbers.demo');
// includes
goog.require('i18n.phonenumbers.PhoneNumberFormat');
goog.require('i18n.phonenumbers.PhoneNumberUtil');
goog.require('i18n.phonenumbers.Error');

// format the given number to the given format
function formatNumber(number, countryCode, format) {
    try {
        var phoneUtil = i18n.phonenumbers.PhoneNumberUtil.getInstance();
        var numberObj = phoneUtil.parseAndKeepRawInput(number, countryCode);
        if (phoneUtil.isPossibleNumber(numberObj)) {
            format = (typeof format == "undefined") ? i18n.phonenumbers.PhoneNumberFormat.E164 : format;
            return phoneUtil.format(numberObj, format);
        } else {
            return number;
        }
    } catch (e) {
        return number;
    }
}

// get an example number for the given country code
function getExampleNumber(countryCode, national, numberType) {
    try {
        var phoneUtil = i18n.phonenumbers.PhoneNumberUtil.getInstance();
        var numberObj = phoneUtil.getExampleNumberForType(countryCode, numberType);
        var format = (national) ? i18n.phonenumbers.PhoneNumberFormat.NATIONAL : i18n.phonenumbers.PhoneNumberFormat.INTERNATIONAL;
        return phoneUtil.format(numberObj, format);
    } catch (e) {
        return "";
    }
}

// get the extension from the given number
function getExtension(number, countryCode) {
    try {
        var phoneUtil = i18n.phonenumbers.PhoneNumberUtil.getInstance();
        var numberObj = phoneUtil.parseAndKeepRawInput(number, countryCode);
        return numberObj.getExtension();
    } catch (e) {
        return "";
    }
}

// get the type of the given number e.g. fixed-line/mobile
function getNumberType(number, countryCode) {
    try {
        var phoneUtil = i18n.phonenumbers.PhoneNumberUtil.getInstance();
        var numberObj = phoneUtil.parseAndKeepRawInput(number, countryCode);
        return phoneUtil.getNumberType(numberObj);
    } catch (e) {
        // broken
        return -99;
    }
}

// get more info if the validation has failed e.g. too long/too short
// NOTE that isPossibleNumberWithReason returns a i18n.phonenumbers.PhoneNumberUtil.ValidationResult
function getValidationError(number, countryCode) {
    try {
        var phoneUtil = i18n.phonenumbers.PhoneNumberUtil.getInstance();
        var numberObj = phoneUtil.parseAndKeepRawInput(number, countryCode);
        return phoneUtil.isPossibleNumberWithReason(numberObj);
    } catch (e) {
        //console.log(e);

        // here I convert thrown errors into ValidationResult enums (if possible)
        // errors are from i18n.phonenumbers.Error in the file https://github.com/googlei18n/libphonenumber/blob/master/javascript/i18n/phonenumbers/phonenumberutil.js
        if (e.message == i18n.phonenumbers.Error.INVALID_COUNTRY_CODE) {
            return i18n.phonenumbers.PhoneNumberUtil.ValidationResult.INVALID_COUNTRY_CODE;
        }
        if (e.message == i18n.phonenumbers.Error.TOO_SHORT_AFTER_IDD || e.message == i18n.phonenumbers.Error.TOO_SHORT_NSN) {
            return i18n.phonenumbers.PhoneNumberUtil.ValidationResult.TOO_SHORT;
        }
        if (e.message == i18n.phonenumbers.Error.TOO_LONG) {
            return i18n.phonenumbers.PhoneNumberUtil.ValidationResult.TOO_LONG;
        }

        // broken
        return -99;
    }
}

// check if given number is valid
function isValidNumber(number, countryCode) {
    try {
        var phoneUtil = i18n.phonenumbers.PhoneNumberUtil.getInstance();
        var numberObj = phoneUtil.parseAndKeepRawInput(number, countryCode);
        return phoneUtil.isValidNumber(numberObj);
    } catch (e) {
        return false;
    }
}

// copied this from i18n.phonenumbers.PhoneNumberFormat in the file https://github.com/googlei18n/libphonenumber/blob/master/javascript/i18n/phonenumbers/phonenumberutil.js
var numberFormat = {
    "E164": 0,
    "INTERNATIONAL": 1,
    "NATIONAL": 2,
    "RFC3966": 3
};

// copied this from i18n.phonenumbers.PhoneNumberType in https://github.com/googlei18n/libphonenumber/blob/master/javascript/i18n/phonenumbers/phonenumberutil.js and put the keys in quotes to force closure compiler to preserve the keys
// TODO: there must be a way to just tell closure compiler to preserve the keys on i18n.phonenumbers.PhoneNumberType and just export that
var numberType = {
    "FIXED_LINE": 0,
    "MOBILE": 1,
    "FIXED_LINE_OR_MOBILE": 2,
    "TOLL_FREE": 3,
    "PREMIUM_RATE": 4,
    "SHARED_COST": 5,
    "VOIP": 6,
    "PERSONAL_NUMBER": 7,
    "PAGER": 8,
    "UAN": 9,
    "VOICEMAIL": 10,
    "UNKNOWN": -1
};

// copied this from i18n.phonenumbers.PhoneNumberUtil.ValidationResult in https://github.com/googlei18n/libphonenumber/blob/master/javascript/i18n/phonenumbers/phonenumberutil.js and again put the keys in quotes.
var validationError = {
    "IS_POSSIBLE": 0,
    "INVALID_COUNTRY_CODE": 1,
    "TOO_SHORT": 2,
    "TOO_LONG": 3,
    "IS_POSSIBLE_LOCAL_ONLY": 4,
    "INVALID_LENGTH": 5,
};

// exports
goog.exportSymbol('intlTelInputUtils', {});
goog.exportSymbol('intlTelInputUtils.formatNumber', formatNumber);
goog.exportSymbol('intlTelInputUtils.getExampleNumber', getExampleNumber);
goog.exportSymbol('intlTelInputUtils.getExtension', getExtension);
goog.exportSymbol('intlTelInputUtils.getNumberType', getNumberType);
goog.exportSymbol('intlTelInputUtils.getValidationError', getValidationError);
goog.exportSymbol('intlTelInputUtils.isValidNumber', isValidNumber);
// enums
goog.exportSymbol('intlTelInputUtils.numberFormat', numberFormat);
goog.exportSymbol('intlTelInputUtils.numberType', numberType);
goog.exportSymbol('intlTelInputUtils.validationError', validationError);