window.addEvent("load",function() {
    $('.ui-keyboard-input').bind('keyboardChange', function(e, keyboard, el){

        var currentWord = getSelectedWord(keyboard.$preview.val(),keyboard.preview.selectionStart)

        //console.log(currentWord);

        var message = getMessage(currentWord);

        $("#CurrentWord").text(currentWord);
        $("#SpellMessage").text(message);

    });

});


function getMessage(word) {
    if ( word.length < 3 ) { return; }
    if ( word.length > 4 ) { return; }

    message = inspectWord(word);
    //console.log(message);
    return message;
}

function inspectWord(word) {
    var firstVowel,secondVowel,consonant
    if ( word.length == 3 ) {
        firstVowel = word.charAt(0);
        consonant = word.charAt(1);
        secondVowel = word.charAt(2);
    }
    else if ( word.length == 4 ) {
        firstVowel = word.charAt(0);
        consonant = word.substr(1,2);
        secondVowel = word.charAt(3);
    }
    else {
        return "Unknown wordtype: \"" + word + "\". Word must be vowel-consonant-vowel";
    }

    if ( !isVowel(firstVowel) || !isConsonant(consonant) || !isVowel(secondVowel) ) {
        var retString = "Unknown wordtype: \"" + word + "\". Word must be vowel-consonant-vowel\n";
        if ( !isVowel(firstVowel) ) { retString += "Unknown vowel: " + firstVowel + "\n"; }
        if ( !isConsonant(consonant) ) { retString += "Unknown consonant: " + consonant + "\n"; }
        if ( !isVowel(secondVowel) ) { retString += "Unknown vowel: " + secondVowel + "\n"; }

        return retString;
    }

    if  (( isHardVowel(firstVowel) && !isHardVowel( secondVowel) ) ||
         ( isHardVowel(secondVowel) && !isHardVowel(firstVowel) ) ) {
        return "Vowel types do not match in \"" + word + "\".";
    }


    return "\"" + word + "\" is a valid word.";

}

function isVowel(chara) {
    var vowels = "aeiouọịụẹ";
    return vowels.contains(chara.toLowerCase());
}
function isConsonant(chara) {
    //console.log("checking for consonant: " + chara);

    if ( chara.length == 1 ) {
        //var consonants = "bcdfghjklmnpqrstvwxyzṣɗƴṅɓƙ";


        var consonants = "bdfghjklmnṅprstvwyz";
        return consonants.contains(chara.toLowerCase());
    }
    else return (chara.toLowerCase().match(/ch|gb|gh|gw|kp|kw|nw|ny|sh/) )
}
function isHardVowel(chara) {
    var hVowels = "aọịụẹ"; // added ẹ ( is this correct? )
    return hVowels.contains(chara.toLowerCase());
}


function getSelectedWord(text,cursor) {
    var start = cursor;
    var end = cursor;

    //console.log(text,cursor);

    while ( start > 0 && isLetter(text.substring(start-1,start)) ) {
        start--;
    }
    while ( end < text.length && isLetter(text.substring(end,end+1)) ) {
        end++;
    }

    return text.substring(start,end);
}

function isLetter(character) {
    if ( character == '' ) { return false; }
    if ( !isNaN(character) ) { return false; }  // Is it a number?

    var punctuations = " .,:;?!()[]@#$%^&*-\"'<>+=_";

    if ( punctuations.contains(character) ) { return false; }

    return true;

}


//console.log("uwaooo");