/*
 * SNumber.cpp
 *
 *  Created on: May 19, 2009
 *      Author: saemy
 */

#include "snumber.h"

#include <QDebug>
#include <QStringList>

#include <StdExceptions.h>

#include <typeconvert.h>
#include <strutils.h>

/**
 * Format:
 *  c       country code (1-digit)
 *  cc      country code (2-digits)
 *  CC      country code trim zeros
 *
 *  a       area code (1-digit)
 *  aa      area code (2-digits)
 *  aaa     area code (3-digits)
 *  AAA     area code trim zeros
 *
 *  u       The user number
 *
 *  'foo'   Ignored part
 */
const QString SNumber::IsoFormat      = "'+'cc' 'aaa' 'u"; // +41 079 1234567
const QString SNumber::IsoFormatShort = "'+'CC' 'AAA' 'u"; // +41 79 1234567
const QString SNumber::GuessFormat    = "%%guess%%";

SNumber::SNumber() {
    clear();
}
SNumber::SNumber(const QString& numberStr, const QString& format) {
    setNumber(numberStr, format);
}
SNumber::SNumber(const SNumber& other) {
    fromString(other.toString("ccaaau"), "ccaaau");
}

void SNumber::clear() {
    countryCode_ = 0;
    areaCode_    = 0;
    userNumber_  = "";
}

bool SNumber::isEmpty() const {
    return countryCode() == -1;
}
bool SNumber::isValid() const {
    return (countryCode_ > 0) &&
           (areaCode_    > 0) &&
           (userNumber_  != "");
}


short SNumber::countryCode() const{
    return countryCode_;
}
short SNumber::areaCode() const{
    return areaCode_;
}
QString SNumber::userNumber() const{
    return userNumber_;
}

/* CC & AAA are not applicable here! */
bool SNumber::setNumber(const QString& numberStr, const QString& format){
    if (format == SNumber::GuessFormat) {
        QStringList formats;
        formats.append("'+'cc' 'aaa' 'u");// +41 079 1234567
        formats.append("'+'cc' 'aa' 'u"); // +41 79 1234567
        formats.append("'+'cc' 'a' 'u");  // +41 7 1234567
        formats.append("'+'c' 'aaa' 'u"); // +1 079 1234567
        formats.append("'+'c' 'aa' 'u");  // +1 79 1234567
        formats.append("'+'c' 'a' 'u");   // +1 7 1234567
        formats.append("'+'cc' 'aaau");   // +41 0791234567 (Attention! A part of the usernumber could be interpreted as the areacode)
        formats.append("'+'cc' 'aau");    // +41 791234567 (Attention! A part of the usernumber could be interpreted as the areacode)
        formats.append("'+'cc' 'au");     // +41 71234567 (Attention! A part of the usernumber could be interpreted as the areacode)
        formats.append("'+'c' 'aaau");    // +1 0791234567 (Attention! A part of the usernumber could be interpreted as the areacode)
        formats.append("'+'c' 'aau");     // +1 791234567 (Attention! A part of the usernumber could be interpreted as the areacode)
        formats.append("'+'c' 'au");      // +1 71234567 (Attention! A part of the usernumber could be interpreted as the areacode)

        foreach(QString format_, formats) {
            if (setNumber(numberStr, format_)) {
                return true;
            }
        }
        return false;
    }

    clear();

    qDebug() << "Checking " + format + " on " + numberStr;

    const QLatin1Char quote('\'');
    if (format.isEmpty())
        return false;

    bool inQuote = false;
    int  j = 0;
    for (int i = 0; i < format.count(); i++) {
        if (numberStr.count() <= j) {
            clear();
            break;
        }

        if (format.at(i) == quote) {
            inQuote = !inQuote;
            continue;
        }

        if (inQuote) {
            if (format.at(i) == numberStr.at(j)) {
                j++;
                continue;
            } else {
                clear();
                break;
            }
        }

        if (format.mid(i, 2) == "cc") {
            setCountryCode(numberStr.mid(j, 2).toShort());
            j += 2;
            i++;
        } else if (format.mid(i, 1) == "c") {
            setCountryCode(numberStr.mid(i, 1).toShort());
            j++;
        } else if (format.mid(i, 3) == "aaa") {
            setAreaCode(numberStr.mid(j, 3).toShort());
            j += 3;
            i += 2;
        } else if (format.mid(i, 2) == "aa") {
            setAreaCode(numberStr.mid(j, 2).toShort());
            j += 2;
            i++;
        } else if (format.mid(i, 1) == "a") {
            setAreaCode(numberStr.mid(j, 1).toShort());
            j++;
        } else if (format.at(i) == 'u') {
            QString userNumber = "";
            while (j < numberStr.count()) {
                userNumber += numberStr.at(j);
                j++;
            }
            setUserNumber(userNumber);
            j++;
        } else if (format.at(i) == numberStr.at(j)) {
            j++;
        } else {
            if (format.mid(i, 2) == "CC") {
                qWarning() << "CC not supported here!";
            } else if (format.mid(i, 3) == "AAA") {
                qWarning() << "AAA not supported here!";
            }
            clear();
            break;
        }
    }

    return isValid();
}

bool SNumber::isStringPositiveNumber(const QString& str) {
    if (str == "")
        return false;

    for (int i = 0; i < str.count(); i++) {
        if (!str.at(i).isNumber())
            return false;
    }

    return true;
}

void SNumber::setCountryCode(short countryCode){
    if ((countryCode <= 0) || (countryCode >= 100))
        return;

    countryCode_ = countryCode;
}
void SNumber::setAreaCode(short areaCode){
    if ((areaCode <= 0) || (areaCode >= 1000))
        return;

    areaCode_ = areaCode;
}
void SNumber::setUserNumber(const QString& userNumberStr){
    if (userNumberStr.toInt() <= 0)
        return;

    userNumber_ = userNumberStr;
}

QString SNumber::toString(const QString& format) const {
    if (!isValid()) {
        return "";
    }

    const QLatin1Char quote('\'');
    if (format.isEmpty())
        return QString();

    QString res = "";

    bool inQuote = false;
    for (int i = 0; i < format.length(); i++) {
        if (format.at(i) == quote) {
            inQuote = !inQuote;
            continue;
        }

        if (inQuote) {
            res += format.at(i);
            continue;
        }

        if (format.mid(i, 2) == "CC") {
            res += QString::number(countryCode());
            i++;
        } else if (format.mid(i, 2) == "cc") {
            res += QString::number(countryCode()).rightJustified(2, '0');
            i++;
        } else if (format.mid(i, 1) == "c") {
            res += QString::number(countryCode()).rightJustified(1, '0');
        } else if (format.mid(i, 3) == "AAA") {
            res += QString::number(areaCode());
            i += 2;
        } else if (format.mid(i, 3) == "aaa") {
            res += QString::number(areaCode()).rightJustified(3, '0');
            i += 2;
        } else if (format.mid(i, 2) == "aa") {
            res += QString::number(areaCode()).rightJustified(2, '0');
            i += 1;
        } else if (format.mid(i, 1) == "a") {
            res += QString::number(areaCode()).rightJustified(1, '0');
        } else if (format.at(i) == 'u') {
            res += userNumber();
        } else {
            res += format.at(i);
        }
    }
    return res;
}

bool SNumber::readFromString(const QString& string, const QString& format) {
    return setNumber(string, format);
}
SNumber SNumber::fromString(const QString& string, const QString& format) {
    return SNumber(string, format);
}

bool SNumber::operator==(const SNumber& n) const {
    return this->toString() == n.toString();
}