/****************************************************************************
 * Copyright (C) 2015 Dimok
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ****************************************************************************/
#include <gui/GuiElement.h>
#include <gui/GuiController.h>
#include <gui/GuiTrigger.h>

/**
 * Constructor for the GuiTrigger class.
 */
GuiTrigger::GuiTrigger()
    : chan(CHANNEL_ALL)
    , btns(BUTTON_NONE)
    , bClickEverywhere(false)
    , bHoldEverywhere(false)
    , bSelectionClickEverywhere(false)
    , bLastTouched(false) {
}

GuiTrigger::GuiTrigger(uint32_t ch, uint32_t btn, bool clickEverywhere, bool holdEverywhere, bool selectionClickEverywhere)
    : chan(ch)
    , btns(btn)
    , bClickEverywhere(clickEverywhere)
    , bHoldEverywhere(holdEverywhere)
    , bSelectionClickEverywhere(selectionClickEverywhere)
    , bLastTouched(false) {
}

/**
 * Destructor for the GuiTrigger class.
 */
GuiTrigger::~GuiTrigger() {
}

/**
 * Sets a simple trigger. Requires:
 * - Element is selected
 * - Trigger button is pressed
 */
void GuiTrigger::setTrigger(uint32_t ch, uint32_t btn) {
    chan = ch;
    btns = btn;
}

bool GuiTrigger::left(const GuiController *controller) const {
    if((controller->chan & chan) == 0) {
        return false;
    }
    if((controller->data.buttons_h | controller->data.buttons_d) & (BUTTON_LEFT | STICK_L_LEFT)) {
        return true;
    }
    return false;
}

bool GuiTrigger::right(const GuiController *controller) const {
    if((controller->chan & chan) == 0) {
        return false;
    }
    if((controller->data.buttons_h | controller->data.buttons_d) & (BUTTON_RIGHT | STICK_L_RIGHT)) {
        return true;
    }
    return false;
}

bool GuiTrigger::up(const GuiController *controller) const {
    if((controller->chan & chan) == 0) {
        return false;
    }
    if((controller->data.buttons_h | controller->data.buttons_d) & (BUTTON_UP | STICK_L_UP)) {
        return true;
    }
    return false;
}

bool GuiTrigger::down(const GuiController *controller) const {
    if((controller->chan & chan) == 0) {
        return false;
    }
    if((controller->data.buttons_h | controller->data.buttons_d) & (BUTTON_DOWN | STICK_L_DOWN)) {
        return true;
    }
    return false;
}

int32_t GuiTrigger::clicked(const GuiController *controller) const {
    if((controller->chan & chan) == 0) {
        return CLICKED_NONE;
    }

    int32_t bResult = CLICKED_NONE;

    if(controller->data.touched && controller->data.validPointer && (btns & VPAD_TOUCH) && !controller->lastData.touched) {
        bResult = CLICKED_TOUCH;
    }

    if(controller->data.buttons_d & btns) {
        bResult = CLICKED_BUTTON;
    }
    return bResult;
}

bool GuiTrigger::held(const GuiController *controller) const {
    if((controller->chan & chan) == 0) {
        return false;
    }

    bool bResult = false;

    if(controller->data.touched && (btns & VPAD_TOUCH) && controller->data.validPointer && controller->lastData.touched && controller->lastData.validPointer) {
        bResult = true;
    }

    if(controller->data.buttons_h & btns) {
        bResult = true;
    }

    return bResult;
}

bool GuiTrigger::released(const GuiController *controller) const {
    if((controller->chan & chan) == 0) {
        return false;
    }

    if(clicked(controller) || held(controller))
        return false;

    bool bResult = false;

    if(!controller->data.touched && (btns & VPAD_TOUCH) && controller->lastData.touched && controller->lastData.validPointer) {
        bResult = true;
    }

    if(controller->data.buttons_r & btns) {
        bResult = true;
    }

    return bResult;
}