/*
 * Copyright (C) 2019  Max Regan
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#pragma once

#include "macros.h"

#include "ReturnCode.h"
#include "Time.h"
#include "SystemTime.h"

class BlinkTask : public Common::Schedule::Task {
public:

    BlinkTask(Common::time_t blink_period)
        : m_period(blink_period)
    {}

    Common::ReturnCode init() {
        /** Enable Port A,B clock */
        SET(RCC->IOPENR, RCC_IOPENR_IOPBEN);
        /** Enable pin P3 for output */
        SET_TO(GPIOB->MODER,
               GPIO_MODER_MODE3,
               GPIO_MODER_MODE3_0);

        CLR(GPIOB->OTYPER, GPIO_OTYPER_OT_3);
        CLR(GPIOB->PUPDR, GPIO_PUPDR_PUPD3);

        return Common::ReturnCode::OK;
    }

    Common::Schedule::NextTime execute() override {
        FLIP(GPIOB->ODR, GPIO_ODR_OD3);

        return Common::Schedule::NextTime::in(m_period / 2);
    }

private:
    Common::time_t m_period;
};