/*
  Q Light Controller Plus
  palettegenerator.cpp

  Copyright (C) Massimo Callegari

  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0.txt

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
*/

#include <QString>
#include <QDebug>

#include "qlccapability.h"
#include "qlcfixturedef.h"
#include "qlcfixturehead.h"
#include "qlcchannel.h"

#include "palettegenerator.h"
#include "rgbscriptscache.h"
#include "fixturegroup.h"
#include "chaserstep.h"
#include "rgbmatrix.h"
#include "fixture.h"
#include "chaser.h"
#include "scene.h"
#include "doc.h"

PaletteGenerator::PaletteGenerator(Doc* doc, const QList <Fixture*>& fxList,
                                   PaletteType type, PaletteSubType subType)
    : m_doc(doc)
    , m_name(QString())
    , m_type(type)
    , m_subType(subType)
    , m_fixtures(fxList)
    , m_fixtureGroup(NULL)
{
    if (m_fixtures.count() > 0)
    {
        m_name = typetoString(type);
        if (m_fixtures.at(0)->fixtureDef() != NULL)
            m_model = m_fixtures.at(0)->fixtureDef()->model();
        if (type != Undefined)
            createFunctions(type, subType);
    }
}

PaletteGenerator::~PaletteGenerator()
{
    m_fixtures.clear();
    m_scenes.clear();
    m_chasers.clear();
    m_matrices.clear();
}

void PaletteGenerator::setName(QString name)
{
    m_name = name;
}

QString PaletteGenerator::name() const
{
    return m_name;
}

QString PaletteGenerator::fullName() const
{
    return m_name + " - " + m_model;
}

QString PaletteGenerator::model() const
{
    return m_model;
}

PaletteGenerator::PaletteType PaletteGenerator::type() const
{
    return m_type;
}

PaletteGenerator::PaletteSubType PaletteGenerator::subType() const
{
    return m_subType;
}

QString PaletteGenerator::typetoString(PaletteGenerator::PaletteType type)
{
    switch(type)
    {
        case PrimaryColors: return tr("Primary colours"); break;
        case SixteenColors: return tr("16 Colours"); break;
        case Shutter: return tr("Shutter macros");
        case Gobos: return tr("Gobo macros");
        case ColourMacro: return tr("Colour macros");
        case Animation: return tr("Animations");
        case Undefined:
        default:
            return tr("Unknown");
        break;
    }
}

QStringList PaletteGenerator::getCapabilities(const Fixture *fixture)
{
    QStringList caps;
    bool hasPan = false, hasTilt = false;
    bool hasRed = false, hasGreen = false, hasBlue = false;
    bool hasCyan = false, hasMagenta = false, hasYellow = false;
    bool hasWhite = false;

    Q_ASSERT(fixture != NULL);
    for (quint32 ch = 0; ch < fixture->channels(); ch++)
    {
        const QLCChannel* channel(fixture->channel(ch));
        Q_ASSERT(channel != NULL);

        switch (channel->group())
        {
            case QLCChannel::Colour:
            case QLCChannel::Gobo:
            case QLCChannel::Shutter:
            {
                if (channel->capabilities().size() > 1)
                {
                    QString cap = QLCChannel::groupToString(channel->group());
                    if (!caps.contains(cap))
                        caps.append(cap);
                }
            }
            break;
            case QLCChannel::Pan:
                hasPan = true;
            break;
            case QLCChannel::Tilt:
                hasTilt = true;
            break;
            case QLCChannel::Intensity:
            {
                QLCChannel::PrimaryColour col = channel->colour();
                switch (col)
                {
                    case QLCChannel::Red: hasRed = true; break;
                    case QLCChannel::Green: hasGreen = true; break;
                    case QLCChannel::Blue: hasBlue = true; break;
                    case QLCChannel::Cyan: hasCyan = true; break;
                    case QLCChannel::Magenta: hasMagenta = true; break;
                    case QLCChannel::Yellow: hasYellow = true; break;
                    case QLCChannel::White: hasWhite = true; break;
                    default: break;
                }
            }
            break;
            default:
            break;
        }
    }

    if (hasPan && hasTilt)
        caps.append(KQLCChannelMovement);

    if (hasRed && hasGreen && hasBlue)
        caps.append(KQLCChannelRGB);

    if (hasCyan && hasMagenta && hasYellow)
        caps.append(KQLCChannelCMY);

    if (hasWhite)
        caps.append(KQLCChannelWhite);

    return caps;
}

QList<Scene *> PaletteGenerator::scenes() const
{
    return m_scenes;
}

QList<Chaser *> PaletteGenerator::chasers() const
{
    return m_chasers;
}

QList<RGBMatrix *> PaletteGenerator::matrices() const
{
    return m_matrices;
}

void PaletteGenerator::addToDoc()
{
    foreach (Scene *scene, m_scenes)
        m_doc->addFunction(scene);

    foreach (Chaser *chaser, m_chasers)
    {
        foreach (Scene *scene, m_scenes)
        {
            qDebug() << "Add chaser step:" << scene->id();
            chaser->addStep(ChaserStep(scene->id()));
        }
        m_doc->addFunction(chaser);
    }

    if (m_fixtureGroup != NULL)
        m_doc->addFixtureGroup(m_fixtureGroup);

    foreach (RGBMatrix *matrix, m_matrices)
    {
        matrix->setFixtureGroup(m_fixtureGroup->id());
        m_doc->addFunction(matrix);
    }
}

void PaletteGenerator::createColorScene(QList<SceneValue> chMap, QString name, PaletteSubType subType)
{
    if (chMap.size() == 0)
        return;

    Scene *scene = new Scene(m_doc);
    Scene *evenScene = NULL;
    Scene *oddScene = NULL;
    bool even = false;

    if (subType == OddEven)
    {
        evenScene = new Scene(m_doc);
        oddScene = new Scene(m_doc);
    }

    foreach (SceneValue scv, chMap)
    {

        scene->setValue(scv.fxi, scv.channel, 255);
        if (subType == OddEven)
        {
            if (even)
                evenScene->setValue(scv.fxi, scv.channel, 255);
            else
                oddScene->setValue(scv.fxi, scv.channel, 255);
            even = !even;
        }
    }
    scene->setName(getNamePrefix("Color", name));
    m_scenes.append(scene);
    if (subType == OddEven)
    {
        evenScene->setName(tr("%1 (Even)").arg(getNamePrefix("Color", name)));
        oddScene->setName(tr("%1 (Odd)").arg(getNamePrefix("Color", name)));
        m_scenes.append(evenScene);
        m_scenes.append(oddScene);
    }
}

void PaletteGenerator::createRGBCMYScene(QList<SceneValue> rcMap,
                                         QList<SceneValue> gmMap,
                                         QList<SceneValue> byMap,
                                         QString name, bool rgb,
                                         PaletteGenerator::PaletteSubType subType)
{
    if (rcMap.size() == 0 || gmMap.size() == 0 || byMap.size() == 0)
        return;

    bool even = false;
    QList <QColor> m_colList;
    QList <QString> m_colNames;

    m_colList << Qt::black << Qt::darkBlue << Qt::blue << Qt::darkGreen <<
                 Qt::darkCyan << Qt::green << Qt::cyan << Qt::darkRed <<
                 Qt::darkMagenta << Qt::darkYellow << Qt::darkGray << Qt::lightGray <<
                 Qt::red << Qt::magenta << Qt::yellow << Qt::white;

    m_colNames << tr("Black") << tr("Dark Blue") << tr("Blue") << tr("Dark Green")
               << tr("Dark Cyan") << tr("Green") << tr("Cyan") << tr("Dark Red")
               << tr("Dark Magenta") << tr("Dark Yellow") << tr("Dark Gray") << tr("Light Gray")
               << tr("Red") << tr("Magenta") << tr("Yellow") << tr("White");

    for (int i = 0; i < m_colList.count(); i++)
    {
        QColor col = m_colList.at(i);
        uchar rc = col.red();
        uchar gm = col.green();
        uchar by = col.blue();
        if (rgb == false)
        {
            rc = col.cyan();
            gm = col.magenta();
            by = col.yellow();
        }

        Scene *scene = new Scene(m_doc);
        Scene *evenScene = NULL;
        Scene *oddScene = NULL;

        if (subType == OddEven)
        {
            evenScene = new Scene(m_doc);
            oddScene = new Scene(m_doc);
        }

        foreach (SceneValue scv, rcMap)
        {
            Fixture *fxi = m_doc->fixture(scv.fxi);
            int gmCh = -1, byCh = -1;

            for (int i = 0; i < fxi->heads(); i++)
            {
                QLCFixtureHead head = fxi->head(i);
                if (head.channels().contains(scv.channel))
                {
                    if (head.rgbChannels().count() == 3)
                    {
                        gmCh = head.rgbChannels().at(1);
                        byCh = head.rgbChannels().at(2);
                    }
                    else if (head.cmyChannels().count() == 3)
                    {
                        gmCh = head.cmyChannels().at(1);
                        byCh = head.cmyChannels().at(2);
                    }
                    break;
                }
            }

            // if no green/magenta or no blue/yellow channels
            // are found, there's no chance to set a full RGB/CMY color
            if (gmCh == -1 || byCh == -1)
                continue;

            scene->setValue(scv.fxi, scv.channel, rc);
            scene->setValue(scv.fxi, gmCh, gm);
            scene->setValue(scv.fxi, byCh, by);

            if (subType == OddEven)
            {
                if (even)
                {
                    evenScene->setValue(scv.fxi, scv.channel, rc);
                    evenScene->setValue(scv.fxi, gmCh, gm);
                    evenScene->setValue(scv.fxi, byCh, by);
                }
                else
                {
                    oddScene->setValue(scv.fxi, scv.channel, rc);
                    oddScene->setValue(scv.fxi, gmCh, gm);
                    oddScene->setValue(scv.fxi, byCh, by);
                }
                even = !even;
            }
        }
        qDebug() << "color name:" << m_colNames.at(i) << "i:" << i << "count:" << m_colNames.count();

        scene->setName(getNamePrefix(m_colNames.at(i), name));
        m_scenes.append(scene);
        if (subType == OddEven)
        {
            evenScene->setName(tr("%1 (Even)").arg(getNamePrefix(m_colNames.at(i),name)));
            oddScene->setName(tr("%1 (Odd)").arg(getNamePrefix(m_colNames.at(i),name)));
            m_scenes.append(evenScene);
            m_scenes.append(oddScene);
        }
    }
}

void PaletteGenerator::createCapabilityScene(QHash<quint32, quint32> chMap,
                                             PaletteGenerator::PaletteSubType subType)
{
    if (chMap.size() == 0)
        return;

    Fixture *fxi = m_fixtures.at(0);
    Q_ASSERT(fxi != NULL);
    QHashIterator <quint32, quint32> it(chMap);

    quint32 ch = it.next().value();
    const QLCChannel* channel = fxi->channel(ch);
    QStringList tmpCapList;

    for (int cIdx = 0; cIdx < channel->capabilities().count(); cIdx++)
    {
        Scene *scene = new Scene(m_doc);
        Scene *evenScene = NULL;
        Scene *oddScene = NULL;
        bool even = false;
        QLCCapability *cap = channel->capabilities().at(cIdx);
        uchar value = cap->middle();
        QString name = cap->name();

        // Do not add the same capability twice
        if (tmpCapList.contains(name))
            continue;

        tmpCapList.append(name);

        if (subType == OddEven)
        {
            evenScene = new Scene(m_doc);
            oddScene = new Scene(m_doc);
        }

        QHashIterator <quint32, quint32> it(chMap);
        while (it.hasNext() == true)
        {
            it.next();
            scene->setValue(it.key(), it.value(), value);
            if (subType == OddEven)
            {
                if (even)
                    evenScene->setValue(it.key(), it.value(), value);
                else
                    oddScene->setValue(it.key(), it.value(), value);
                even = !even;
            }
        }

        scene->setName(getNamePrefix(channel->name(),  name));
        m_scenes.append(scene);
        if (subType == OddEven)
        {
            evenScene->setName(getNamePrefix(channel->name(),  name) + tr(" - Even"));
            oddScene->setName(getNamePrefix(channel->name(),  name) + tr(" - Odd"));
            m_scenes.append(evenScene);
            m_scenes.append(oddScene);
        }
    }
}

void PaletteGenerator::createRGBMatrices(QList<SceneValue> rgbMap)
{
    m_fixtureGroup = new FixtureGroup(m_doc);
    m_fixtureGroup->setSize(QSize(rgbMap.size(), 1));

    foreach (SceneValue scv, rgbMap)
    {
        m_fixtureGroup->assignFixture(scv.fxi);
        m_fixtureGroup->setName(m_model + tr(" - RGB Group"));
    }
    QStringList algoList = m_doc->rgbScriptsCache()->names();
    foreach (QString algo, algoList)
    {
        RGBMatrix *matrix = new RGBMatrix(m_doc);
        matrix->setName(tr("Animation %1").arg(algo) + " - " + m_model);
        //matrix->setFixtureGroup();
        matrix->setAlgorithm(RGBAlgorithm::algorithm(m_doc, algo));
        m_matrices.append(matrix);
    }
}

void PaletteGenerator::createChaser(QString name)
{
    if (m_scenes.count() == 0)
        return;

    Chaser *chaser = new Chaser(m_doc);
    chaser->setFadeInMode(Chaser::Common);
    chaser->setFadeInSpeed(3000);
    chaser->setFadeOutMode(Chaser::Common);
    chaser->setFadeOutSpeed(0);
    chaser->setDurationMode(Chaser::Common);
    chaser->setDuration(10000);
    chaser->setName(tr("%1 chaser - %2").arg(name).arg(m_model));

    // that's all here. I need to add an empty Chaser cause
    // scene's IDs have not been assigned yet
    m_chasers.append(chaser);
}

void PaletteGenerator::createFunctions(PaletteGenerator::PaletteType type,
                                       PaletteGenerator::PaletteSubType subType)
{
    if (m_fixtures.count() == 0)
        return;

    // the following QHash will hold the fixture/channel map of each fixture
    // in m_fixtures depending on type and subtype
    QHash<quint32, quint32> m_panList;
    QHash<quint32, quint32> m_tiltList;
    QList<SceneValue> m_redList;
    QList<SceneValue> m_greenList;
    QList<SceneValue> m_blueList;
    QList<SceneValue> m_cyanList;
    QList<SceneValue> m_magentaList;
    QList<SceneValue> m_yellowList;
    QList<SceneValue> m_whiteList;
    QHash<quint32, quint32> m_goboList;
    QHash<quint32, quint32> m_shutterList;
    QHash<quint32, quint32> m_colorMacroList;

    for (int i = 0; i < m_fixtures.count(); i++)
    {
        Fixture *fixture = m_fixtures.at(i);
        Q_ASSERT(fixture != NULL);
        quint32 fxID = fixture->id();

        for (quint32 ch = 0; ch < fixture->channels(); ch++)
        {
            const QLCChannel* channel(fixture->channel(ch));
            Q_ASSERT(channel != NULL);

            switch (channel->group())
            {
                case QLCChannel::Pan: m_panList[fxID] = ch; break;
                case QLCChannel::Tilt: m_tiltList[fxID] = ch; break;
                case QLCChannel::Gobo: m_goboList[fxID] = ch; break;
                case QLCChannel::Shutter: m_shutterList[fxID] = ch; break;
                case QLCChannel::Colour: m_colorMacroList[fxID] = ch; break;
                case QLCChannel::Intensity:
                {
                    QLCChannel::PrimaryColour col = channel->colour();
                    switch (col)
                    {
                        case QLCChannel::Red: m_redList.append(SceneValue(fxID, ch)); break;
                        case QLCChannel::Green: m_greenList.append(SceneValue(fxID, ch)); break;
                        case QLCChannel::Blue: m_blueList.append(SceneValue(fxID, ch)); break;
                        case QLCChannel::Cyan: m_cyanList.append(SceneValue(fxID, ch)); break;
                        case QLCChannel::Magenta: m_magentaList.append(SceneValue(fxID, ch)); break;
                        case QLCChannel::Yellow: m_yellowList.append(SceneValue(fxID, ch)); break;
                        case QLCChannel::White: m_whiteList.append(SceneValue(fxID, ch)); break;
                        default: break;
                    }
                }
                break;
                default:
                break;
            }
        }
    }

    switch (type)
    {
        case PrimaryColors:
        {
            createColorScene(m_redList, tr("Red scene"), subType);
            createColorScene(m_greenList, tr("Green scene"), subType);
            createColorScene(m_blueList, tr("Blue scene"), subType);
            createColorScene(m_cyanList, tr("Cyan scene"), subType);
            createColorScene(m_magentaList, tr("Magenta scene"), subType);
            createColorScene(m_yellowList, tr("Yellow scene"), subType);
            createColorScene(m_whiteList, tr("White scene"), subType);
            createChaser(typetoString(type));
        }
        break;
        case SixteenColors:
        {
            if (m_redList.size() > 0 && m_greenList.size() == m_redList.size() && m_blueList.size() ==  m_redList.size())
                createRGBCMYScene(m_redList, m_greenList, m_blueList, tr("Scene"), true, subType);
            else if (m_cyanList.size() > 0 && m_magentaList.size() == m_cyanList.size() && m_yellowList.size() ==  m_cyanList.size())
                createRGBCMYScene(m_cyanList, m_magentaList, m_yellowList, tr("Scene"), false, subType);
            createChaser(typetoString(type));
        }
        break;
        case Animation:
        {
            if (m_redList.size() > 1 && m_greenList.size() == m_redList.size() && m_blueList.size() ==  m_redList.size())
                createRGBMatrices(m_redList);
        }
        break;
        case Gobos:
        {
            createCapabilityScene(m_goboList, subType);
            createChaser(typetoString(type));
        }
        break;
        case Shutter:
        {
            createCapabilityScene(m_shutterList, subType);
            createChaser(typetoString(type));
        }
        break;
        case ColourMacro:
        {
            createCapabilityScene(m_colorMacroList, subType);
            createChaser(typetoString(type));
        }
        break;
        case Undefined:
        default:
        break;

    }
}

QString PaletteGenerator::getNamePrefix(QString name) const
{
    // return name + " - " + m_model; // old naming
    return m_model + " - " + name;
}

QString PaletteGenerator::getNamePrefix(QString type, QString name) const
{
    // return name + " - " + type + " - " + m_model; // old naming
    return m_model + " - " + type + " - " + name;
}
