// #define COCOS2D_DEBUG   1

#include "TextInputTest.h"

//////////////////////////////////////////////////////////////////////////
// local function
//////////////////////////////////////////////////////////////////////////

enum 
{
    kTextFieldTTFDefaultTest = 0,
    kTextFieldTTFActionTest,
    kTextInputTestsCount,
}; 

#define FONT_NAME                       "fonts/Thonburi.ttf"
#define FONT_SIZE                       36

static int testIdx = -1; 

KeyboardNotificationLayer* createTextInputTest(int nIndex)
{
    switch(nIndex)
    {
    case kTextFieldTTFDefaultTest: return new TextFieldTTFDefaultTest();
    case kTextFieldTTFActionTest: return new TextFieldTTFActionTest();
    default: return 0;
    }
}

Layer* restartTextInputTest()
{
    TextInputTest* pContainerLayer = new TextInputTest;
    pContainerLayer->autorelease();

    auto pTestLayer = createTextInputTest(testIdx);
    pTestLayer->autorelease();
    pContainerLayer->addKeyboardNotificationLayer(pTestLayer);

    return pContainerLayer;
}

Layer* nextTextInputTest()
{
    testIdx++;
    testIdx = testIdx % kTextInputTestsCount;

    return restartTextInputTest();
}

Layer* backTextInputTest()
{
    testIdx--;
    int total = kTextInputTestsCount;
    if( testIdx < 0 )
        testIdx += total;    

    return restartTextInputTest();
}

static Rect getRect(Node * node)
{
    Rect rc;
    rc.origin = node->getPosition();
    rc.size = node->getContentSize();
    rc.origin.x -= rc.size.width / 2;
    rc.origin.y -= rc.size.height / 2;
    return rc;
}

//////////////////////////////////////////////////////////////////////////
// implement TextInputTest
//////////////////////////////////////////////////////////////////////////

TextInputTest::TextInputTest()
: _notificationLayer(0)
{
    
}

void TextInputTest::restartCallback(Ref* sender)
{
    auto s = new TextInputTestScene();
    s->addChild(restartTextInputTest()); 

    Director::getInstance()->replaceScene(s);
    s->release();
}

void TextInputTest::nextCallback(Ref* sender)
{
    auto s = new TextInputTestScene();
    s->addChild( nextTextInputTest() );
    Director::getInstance()->replaceScene(s);
    s->release();
}

void TextInputTest::backCallback(Ref* sender)
{
    auto s = new TextInputTestScene();
    s->addChild( backTextInputTest() );
    Director::getInstance()->replaceScene(s);
    s->release();
}

void TextInputTest::addKeyboardNotificationLayer(KeyboardNotificationLayer * layer)
{
    _notificationLayer = layer;
    addChild(layer);
}

std::string TextInputTest::title() const
{
    return "text input test";
}

void TextInputTest::onEnter()
{
    BaseTest::onEnter();
}

//////////////////////////////////////////////////////////////////////////
// implement KeyboardNotificationLayer
//////////////////////////////////////////////////////////////////////////

KeyboardNotificationLayer::KeyboardNotificationLayer()
: _trackNode(0)
{
    // Register Touch Event
    auto listener = EventListenerTouchOneByOne::create();
    listener->onTouchBegan = CC_CALLBACK_2(KeyboardNotificationLayer::onTouchBegan, this);
    listener->onTouchEnded = CC_CALLBACK_2(KeyboardNotificationLayer::onTouchEnded, this);
    _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);
}

//void KeyboardNotificationLayer::registerWithTouchDispatcher()
//{
//    auto director = Director::getInstance();
//    director->getTouchDispatcher()->addTargetedDelegate(this, 0, false);
//}

void KeyboardNotificationLayer::keyboardWillShow(IMEKeyboardNotificationInfo& info)
{
    CCLOG("TextInputTest:keyboardWillShowAt(origin:%f,%f, size:%f,%f)",
        info.end.origin.x, info.end.origin.y, info.end.size.width, info.end.size.height);

    if (! _trackNode)
    {
        return;
    }

    auto rectTracked = getRect(_trackNode);
    CCLOG("TextInputTest:trackingNodeAt(origin:%f,%f, size:%f,%f)",
        rectTracked.origin.x, rectTracked.origin.y, rectTracked.size.width, rectTracked.size.height);

    // if the keyboard area doesn't intersect with the tracking node area, nothing need to do.
    if (! rectTracked.intersectsRect(info.end))
    {
        return;
    }

    // assume keyboard at the bottom of screen, calculate the vertical adjustment.
    float adjustVert = info.end.getMaxY() - rectTracked.getMinY();
    CCLOG("TextInputTest:needAdjustVerticalPosition(%f)", adjustVert);

    // move all the children node of KeyboardNotificationLayer
    auto& children = getChildren();
    Node * node = 0;
    ssize_t count = children.size();
    Vector2 pos;
    for (int i = 0; i < count; ++i)
    {
        node = children.at(i);
        pos = node->getPosition();
        pos.y += adjustVert;
        node->setPosition(pos);
    }
}

// Layer function

bool KeyboardNotificationLayer::onTouchBegan(Touch  *touch, Event  *event)
{
    CCLOG("++++++++++++++++++++++++++++++++++++++++++++");
    _beginPos = touch->getLocation();    
    return true;
}

void KeyboardNotificationLayer::onTouchEnded(Touch  *touch, Event  *event)
{
    if (! _trackNode)
    {
        return;
    }
    
    auto endPos = touch->getLocation();    

    float delta = 5.0f;
    if (::abs(endPos.x - _beginPos.x) > delta
        || ::abs(endPos.y - _beginPos.y) > delta)
    {
        // not click
        _beginPos.x = _beginPos.y = -1;
        return;
    }

    // decide the trackNode is clicked.
    Rect rect;
    auto point = convertTouchToNodeSpaceAR(touch);
    CCLOG("KeyboardNotificationLayer:clickedAt(%f,%f)", point.x, point.y);

    rect = getRect(_trackNode);
    CCLOG("KeyboardNotificationLayer:TrackNode at(origin:%f,%f, size:%f,%f)",
        rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);

    this->onClickTrackNode(rect.containsPoint(point));
    CCLOG("----------------------------------");
}

//////////////////////////////////////////////////////////////////////////
// implement TextFieldTTFDefaultTest
//////////////////////////////////////////////////////////////////////////

std::string TextFieldTTFDefaultTest::subtitle() const
{
    return "TextFieldTTF with default behavior test";
}

void TextFieldTTFDefaultTest::onClickTrackNode(bool bClicked)
{
    auto pTextField = (TextFieldTTF*)_trackNode;
    if (bClicked)
    {
        // TextFieldTTFTest be clicked
        CCLOG("TextFieldTTFDefaultTest:TextFieldTTF attachWithIME");
        pTextField->attachWithIME();
    }
    else
    {
        // TextFieldTTFTest not be clicked
        CCLOG("TextFieldTTFDefaultTest:TextFieldTTF detachWithIME");
        pTextField->detachWithIME();
    }
}

void TextFieldTTFDefaultTest::onEnter()
{
    KeyboardNotificationLayer::onEnter();

    // add TextFieldTTF
    auto s = Director::getInstance()->getWinSize();

    auto pTextField = TextFieldTTF::textFieldWithPlaceHolder("<click here for input>",
        FONT_NAME,
        FONT_SIZE);
    addChild(pTextField);

#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)    
    // on android, TextFieldTTF cannot auto adjust its position when soft-keyboard pop up
    // so we had to set a higher position to make it visable
    pTextField->setPosition(Vector2(s.width / 2, s.height/2 + 50));
#else
    pTextField->setPosition(Vector2(s.width / 2, s.height / 2));
#endif

    _trackNode = pTextField;
}

//////////////////////////////////////////////////////////////////////////
// implement TextFieldTTFActionTest
//////////////////////////////////////////////////////////////////////////

std::string TextFieldTTFActionTest::subtitle() const
{
    return "CCTextFieldTTF with action and char limit test";
}

void TextFieldTTFActionTest::onClickTrackNode(bool bClicked)
{
    auto pTextField = (TextFieldTTF*)_trackNode;
    if (bClicked)
    {
        // TextFieldTTFTest be clicked
        CCLOG("TextFieldTTFActionTest:TextFieldTTF attachWithIME");
        pTextField->attachWithIME();
    }
    else
    {
        // TextFieldTTFTest not be clicked
        CCLOG("TextFieldTTFActionTest:TextFieldTTF detachWithIME");
        pTextField->detachWithIME();
    }
}

void TextFieldTTFActionTest::onEnter()
{
    KeyboardNotificationLayer::onEnter();

    _charLimit = 12;

    _textFieldAction = RepeatForever::create(
        Sequence::create(
            FadeOut::create(0.25),
            FadeIn::create(0.25),
            NULL
        ));
    _textFieldAction->retain();
    _action = false;

    // add TextFieldTTF
    auto s = Director::getInstance()->getWinSize();

    _textField = TextFieldTTF::textFieldWithPlaceHolder("<click here for input>",
        FONT_NAME,
        FONT_SIZE);
    addChild(_textField);

    _textField->setDelegate(this);
    
#if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID)    
    // on android, TextFieldTTF cannot auto adjust its position when soft-keyboard pop up
    // so we had to set a higher position
    _textField->setPosition(Vector2(s.width / 2, s.height/2 + 50));
#else
    _textField->setPosition(Vector2(s.width / 2, s.height / 2));
#endif

    _trackNode = _textField;
}

void TextFieldTTFActionTest::onExit()
{
    KeyboardNotificationLayer::onExit();
    _textFieldAction->release();
}

// TextFieldDelegate protocol
bool TextFieldTTFActionTest::onTextFieldAttachWithIME(TextFieldTTF * sender)
{
    if (! _action)
    {
        _textField->runAction(_textFieldAction);
        _action = true;
    }
    return false;
}

bool TextFieldTTFActionTest::onTextFieldDetachWithIME(TextFieldTTF * sender)
{
    if (_action)
    {
        _textField->stopAction(_textFieldAction);
        _textField->setOpacity(255);
        _action = false;
    }
    return false;
}

bool TextFieldTTFActionTest::onTextFieldInsertText(TextFieldTTF * sender, const char * text, size_t nLen)
{
    // if insert enter, treat as default to detach with ime
    if ('\n' == *text)
    {
        return false;
    }
    
    // if the textfield's char count more than _charLimit, doesn't insert text anymore.
    if (sender->getCharCount() >= _charLimit)
    {
        return true;
    }

    // create a insert text sprite and do some action
    auto label = Label::createWithSystemFont(text, FONT_NAME, FONT_SIZE);
    this->addChild(label);
    Color3B color(226, 121, 7);
    label->setColor(color);

    // move the sprite from top to position
    auto endPos = sender->getPosition();
    if (sender->getCharCount())
    {
        endPos.x += sender->getContentSize().width / 2;
    }
    auto inputTextSize = label->getContentSize();
    Vector2 beginPos(endPos.x, Director::getInstance()->getWinSize().height - inputTextSize.height * 2); 

    float duration = 0.5;
    label->setPosition(beginPos);
    label->setScale(8);

    auto seq = Sequence::create(
        Spawn::create(
            MoveTo::create(duration, endPos),
            ScaleTo::create(duration, 1),
            FadeOut::create(duration),
            NULL),
        CallFuncN::create(CC_CALLBACK_1(TextFieldTTFActionTest::callbackRemoveNodeWhenDidAction, this)),
        NULL);
    label->runAction(seq);
    return false;
}

bool TextFieldTTFActionTest::onTextFieldDeleteBackward(TextFieldTTF * sender, const char * delText, size_t nLen)
{
    // create a delete text sprite and do some action
    auto label = Label::createWithSystemFont(delText, FONT_NAME, FONT_SIZE);
    this->addChild(label);

    // move the sprite to fly out
    auto beginPos = sender->getPosition();
    auto textfieldSize = sender->getContentSize();
    auto labelSize = label->getContentSize();
    beginPos.x += (textfieldSize.width - labelSize.width) / 2.0f;
    
    auto winSize = Director::getInstance()->getWinSize();
    Vector2 endPos(- winSize.width / 4.0f, winSize.height * (0.5 + (float)rand() / (2.0f * RAND_MAX)));

    float duration = 1;
    float rotateDuration = 0.2f;
    int repeatTime = 5; 
    label->setPosition(beginPos);

    auto seq = Sequence::create(
        Spawn::create(
            MoveTo::create(duration, endPos),
            Repeat::create(
                RotateBy::create(rotateDuration, (rand()%2) ? 360 : -360),
                repeatTime),
            FadeOut::create(duration),
        NULL),
        CallFuncN::create(CC_CALLBACK_1(TextFieldTTFActionTest::callbackRemoveNodeWhenDidAction, this)),
        NULL);
    label->runAction(seq);
    return false;
}

bool TextFieldTTFActionTest::onDraw(TextFieldTTF * sender)
{
    return false;
}

void TextFieldTTFActionTest::callbackRemoveNodeWhenDidAction(Node * node)
{
    this->removeChild(node, true);
}

//////////////////////////////////////////////////////////////////////////
// implement TextInputTestScene
//////////////////////////////////////////////////////////////////////////

void TextInputTestScene::runThisTest()
{
    auto layer = nextTextInputTest();
    addChild(layer);

    Director::getInstance()->replaceScene(this);
}