/*  Copyright (C) 2013 VATSIM Community
 *  This Source Code Form is subject to the terms of the Mozilla Public
 *  License, v. 2.0. If a copy of the MPL was not distributed with this
 *  file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef AVIOCOMUNIT_H
#define AVIOCOMUNIT_H
#include "blackmisc/aviomodulator.h"

using BlackMisc::PhysicalQuantities::CPhysicalQuantitiesConstants;

namespace BlackMisc
{
namespace Aviation
{

/*!
 * \brief COM system (aka "radio")
 */
class CComSystem : public CModulator<CComSystem>
{
private:
    /*!
     * \brief Valid civil aviation frequency?
     * \param f
     * \return
     */
    bool isValidCivilAviationFrequency(CFrequency f) const {
        double fr = f.valueRounded(CFrequencyUnit::MHz(), this->m_digits);
        return fr >= 118.0 && fr <= 136.975;
    }
    /*!
     * \brief Valid military aviation frequency?
     * \param f
     * \return
     */
    bool isValidMilitaryFrequency(CFrequency f) const {
        double fr = f.valueRounded(CFrequencyUnit::MHz(), this->m_digits);
        return fr >= 220.0 && fr <= 399.95;
    }
    /*!
     * \brief Constructor
     * \param validate
     * \param name
     * \param activeFrequency
     * \param standbyFrequency
     * \param digits
     *
     */
    CComSystem(bool validate, const QString &name, const CFrequency &activeFrequency, const CFrequency &standbyFrequency, int digits = 3):
        CModulator(name, activeFrequency, standbyFrequency, digits) {
        this->validate(validate);
    }

protected:
    /*!
     * \brief Are the set values valid / in range?
     * \return
     */
    bool validValues() const {
        if (this->isDefaultValue()) return true; // special case
        return
            (this->isValidCivilAviationFrequency(this->getFrequencyActive()) ||
             this->isValidMilitaryFrequency(this->getFrequencyActive())) &&
            (this->isValidCivilAviationFrequency(this->getFrequencyStandby()) ||
             this->isValidMilitaryFrequency(this->getFrequencyStandby()));
    }
    /*!
     * \brief Validate values by assert and exception
     * \param strict
     * \throws std::range_error
     * \remarks Cannot be virtualsince already used in constructor
     * \return
     */
    bool validate(bool strict = true) const {
        if (this->isDefaultValue()) return true;
        bool valid = this->validValues();
        if (!strict) return valid;
        Q_ASSERT_X(valid, "CComSystem::validate", "illegal values");
        if (!valid) throw std::range_error("Illegal values in CComSystem::validate");
        return true;
    }
public:
    /*!
     * Default constructor
     */
    CComSystem() : CModulator() {}
    /*!
     * \brief Copy constructor
     * \param otherSystem
     */
    CComSystem(const CComSystem &otherSystem) : CModulator(otherSystem) {}
    /*!
     * \brief Constructor
     * \param name
     * \param activeFrequency
     * \param standbyFrequency
     * \param digits
     */
    CComSystem(const QString &name, const CFrequency &activeFrequency, const CFrequency &standbyFrequency = CModulator::FrequencyNotSet(), int digits = 3):
        CModulator(name, activeFrequency, standbyFrequency == CModulator::FrequencyNotSet() ? activeFrequency : standbyFrequency, digits) {
        this->validate(true);
    }
    /*!
     * \brief Set active frequency
     * \param frequencyMHz
     */
    void setFrequencyActiveMHz(double frequencyMHz) {
        CModulator::setFrequencyActiveMHz(frequencyMHz);
        this->validate(true);
    }
    /*!
     * \brief Set standby frequency
     * \param frequencyMHz
     */
    void setFrequencyStandbyMHz(double frequencyMHz) {
        CModulator::setFrequencyStandbyMHz(frequencyMHz);
        this->validate(true);
    }
    /*!
     * \brief Set UNICOM frequency as active
     */
    void setActiveUnicom() {
        this->toggleActiveStandby();
        this->setFrequencyActive(CPhysicalQuantitiesConstants::FrequencyUnicom());
    }
    /*!
     * \brief Set International Air Distress 121.5MHz
     */
    void setActiveInternationalAirDistress() {
        this->toggleActiveStandby();
        this->setFrequencyActive(CPhysicalQuantitiesConstants::FrequencyInternationalAirDistress());
    }
    /*!
     * \brief Assigment operator =
     * \param otherSystem
     * \return
     */
    CComSystem& operator =(const CComSystem &otherSystem) {
        CModulator::operator =(otherSystem);
        return (*this);
    }
    /*!
     * \brief operator ==
     * \param otherSystem
     * \return
     */
    bool operator ==(const CComSystem &otherSystem) const  {
        return CModulator::operator ==(otherSystem);
    }
    /*!
     * \brief operator ==
     * \param otherSystem
     * \return
     */
    bool operator !=(const CComSystem &otherSystem) const  {
        return CModulator::operator !=(otherSystem);
    }

    /*!
     * Try to get a COM unit with given name and frequency. Returns true in case an object
     * has been sucessfully created, otherwise returns a default object.
     * \param comSystem
     * \param name
     * \param activeFrequencyMHz
     * \param standbyFrequencyMHz
     * \return
     */
    static bool tryGetComSystem(CComSystem &comSystem, const QString &name, double activeFrequencyMHz, double standbyFrequencyMHz = -1) {
        comSystem = CComSystem(false, name, CFrequency(activeFrequencyMHz, CFrequencyUnit::MHz()), CFrequency(standbyFrequencyMHz < 0 ? activeFrequencyMHz : standbyFrequencyMHz, CFrequencyUnit::MHz()));
        bool s;
        if (!(s = comSystem.validate(false))) comSystem = CComSystem(); // reset to default
        return s;
    }

    /*!
     * Try to get a COM unit with given name and frequency. Returns true in case an object
     * has been sucessfully created, otherwise returns a default object.
     * \param comSystem
     * \param name
     * \param activeFrequency
     * \param standbyFrequency
     * \return
     */
    static bool tryGetComSystem(CComSystem &comSystem, const QString &name, CFrequency activeFrequency, CFrequency standbyFrequency = CModulator::FrequencyNotSet()) {
        comSystem = CComSystem(false, name, activeFrequency, standbyFrequency);
        bool s;
        if (!(s = comSystem.validate(false))) comSystem = CComSystem(); // reset to default
        return s;
    }
    /*!
     * \brief COM1 unit
     * \param activeFrequencyMHz
     * \param standbyFrequencyMHz
     * \return
     */
    static CComSystem getCom1System(double activeFrequencyMHz, double standbyFrequencyMHz = -1) {
        return CComSystem(CModulator::NameCom1(), CFrequency(activeFrequencyMHz, CFrequencyUnit::MHz()), CFrequency(standbyFrequencyMHz < 0 ? activeFrequencyMHz : standbyFrequencyMHz, CFrequencyUnit::MHz()));
    }
    /*!
     * \brief COM1 unit
     * \param activeFrequency
     * \param standbyFrequency
     * \return
     */
    static CComSystem getCom1System(CFrequency activeFrequency, CFrequency standbyFrequency = CModulator::FrequencyNotSet()) {
        return CComSystem(CModulator::NameCom1(), activeFrequency, standbyFrequency ==  CModulator::FrequencyNotSet() ? activeFrequency : standbyFrequency);
    }
    /*!
     * \brief Try to get COM unit
     * \param comSystem
     * \param activeFrequencyMHz
     * \param standbyFrequencyMHz
     * \return
     */
    static bool tryGetCom1Unit(CComSystem &comSystem, double activeFrequencyMHz, double standbyFrequencyMHz = -1) {
        return CComSystem::tryGetComSystem(comSystem, CModulator::NameCom1(), activeFrequencyMHz, standbyFrequencyMHz);
    }
    /*!
     * \brief Try to get COM unit
     * \param comSystem
     * \param activeFrequency
     * \param standbyFrequency
     * \return
     */
    static bool tryGetCom1Unit(CComSystem &comSystem, CFrequency activeFrequency, CFrequency standbyFrequency = CModulator::FrequencyNotSet()) {
        return CComSystem::tryGetComSystem(comSystem, CModulator::NameCom1(), activeFrequency, standbyFrequency);
    }
    /*!
     * \brief COM2 unit
     * \param activeFrequencyMHz
     * \param standbyFrequencyMHz
     * \return
     */
    static CComSystem getCom2System(double activeFrequencyMHz, double standbyFrequencyMHz = -1) {
        return CComSystem(CModulator::NameCom2(), CFrequency(activeFrequencyMHz, CFrequencyUnit::MHz()), CFrequency(standbyFrequencyMHz < 0 ? activeFrequencyMHz : standbyFrequencyMHz, CFrequencyUnit::MHz()));
    }
    /*!
     * \brief COM2 unit
     * \param activeFrequency
     * \param standbyFrequency
     * \return
     */
    static CComSystem getCom2System(CFrequency activeFrequency, CFrequency standbyFrequency = CModulator::FrequencyNotSet()) {
        return CComSystem(CModulator::NameCom2(), activeFrequency, standbyFrequency ==  CModulator::FrequencyNotSet() ? activeFrequency : standbyFrequency);
    }
    /*!
     * \brief Try to get COM unit
     * \param comSystem
     * \param activeFrequencyMHz
     * \param standbyFrequencyMHz
     * \return
     */
    static bool tryGetCom2System(CComSystem &comSystem, double activeFrequencyMHz, double standbyFrequencyMHz = -1) {
        return CComSystem::tryGetComSystem(comSystem, CModulator::NameCom2(), activeFrequencyMHz, standbyFrequencyMHz);
    }
    /*!
     * \brief Try to get COM unit
     * \param comSystem
     * \param activeFrequency
     * \param standbyFrequency
     * \return
     */
    static bool tryGetCom2System(CComSystem &comSystem, CFrequency activeFrequency, CFrequency standbyFrequency = CModulator::FrequencyNotSet()) {
        return CComSystem::tryGetComSystem(comSystem, CModulator::NameCom2(), activeFrequency, standbyFrequency);
    }

    /*!
     * \brief COM3 unit
     * \param activeFrequencyMHz
     * \param standbyFrequencyMHz
     * \return
     */
    static CComSystem getCom3System(double activeFrequencyMHz, double standbyFrequencyMHz = -1) {
        return CComSystem(CModulator::NameCom3(), CFrequency(activeFrequencyMHz, CFrequencyUnit::MHz()), CFrequency(standbyFrequencyMHz < 0 ? activeFrequencyMHz : standbyFrequencyMHz, CFrequencyUnit::MHz()));
    }
    /*!
     * \brief COM3 unit
     * \param activeFrequency
     * \param standbyFrequency
     * \return
     */
    static CComSystem getCom3System(CFrequency activeFrequency, CFrequency standbyFrequency = CModulator::FrequencyNotSet()) {
        return CComSystem(CModulator::NameCom3(), activeFrequency, standbyFrequency ==  CModulator::FrequencyNotSet() ? activeFrequency : standbyFrequency);
    }

    /*!
     * \brief Try to get COM unit
     * \param comSystem
     * \param activeFrequencyMHz
     * \param standbyFrequencyMHz
     * \return
     */
    static bool tryGetCom3System(CComSystem &comSystem, double activeFrequencyMHz, double standbyFrequencyMHz = -1) {
        return CComSystem::tryGetComSystem(comSystem, CModulator::NameCom3(), activeFrequencyMHz, standbyFrequencyMHz);
    }
    /*!
     * \brief Try to get COM unit
     * \param comSystem
     * \param activeFrequency
     * \param standbyFrequency
     * \return
     */
    static bool tryGetCom3System(CComSystem &comSystem, CFrequency activeFrequency, CFrequency standbyFrequency = CModulator::FrequencyNotSet()) {
        return CComSystem::tryGetComSystem(comSystem, CModulator::NameCom3(), activeFrequency, standbyFrequency);
    }
};

} // namespace

} // namespace

#endif // AVIOCOMUNIT_H