/*
 * Copyright (C) 2014-2024 Amlogic, Inc. All rights reserved.
 *
 * All information contained herein is Amlogic confidential.
 *
 * This software is provided to you pursuant to Software License Agreement
 * (SLA) with Amlogic Inc ("Amlogic"). This software may be used
 * only in accordance with the terms of this agreement.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification is strictly prohibited without prior written permission from
 * Amlogic.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include <utils/Thread.h>

#include <memory>
#include <mutex>
#include <string>
#include <thread>

#include "DataSource.h"
#include "Segment.h"

class ExternalDataSource : public DataSource {
public:
    ExternalDataSource();
    ~ExternalDataSource();

    SubtitleIOType type() override;
    bool start() override;
    bool stop() override;
    size_t availableDataSize() override;
    size_t read(void *buffer, size_t size) override;
    int onData(const char *buffer, int len) override;
    void dump(int fd, const char *prefix) override;

    size_t lseek(int /*offSet*/, int /*whence*/) { return 0; }

private:
    int mTotalSubtitle = -1;
    int mSubtitleType = -1;
    std::string mLanguage = "";
    uint64_t mRenderTimeUs = 0;
    uint64_t mStartPts = 0;
    std::string mSubInfo = "";
    std::shared_ptr<BufferSegment> mSegment;

    // for poping and parsing
    std::shared_ptr<BufferItem> mCurrentItem;
    SubtitleIOState mState = E_SOURCE_INV;

    void notifyInfoChange(int type);
};