/*
    AudioFileSourceSPIFFS
    Input SD card "file" to be used by AudioGenerator

    Copyright (C) 2017  Earle F. Philhower, III

    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 "AudioFileSourceSD.h"

AudioFileSourceSD::AudioFileSourceSD() {
}

AudioFileSourceSD::AudioFileSourceSD(const char *filename) {
    open(filename);
}

bool AudioFileSourceSD::open(const char *filename) {
    f = SD.open(filename, FILE_READ);
    return f;
}

AudioFileSourceSD::~AudioFileSourceSD() {
    if (f) {
        f.close();
    }
}

uint32_t AudioFileSourceSD::read(void *data, uint32_t len) {
    return f.read(reinterpret_cast<uint8_t*>(data), len);
}

bool AudioFileSourceSD::seek(int32_t pos, int dir) {
    if (!f) {
        return false;
    }
    if (dir == SEEK_SET) {
        return f.seek(pos);
    } else if (dir == SEEK_CUR) {
        return f.seek(f.position() + pos);
    } else if (dir == SEEK_END) {
        return f.seek(f.size() + pos);
    }
    return false;
}

bool AudioFileSourceSD::close() {
    f.close();
    return true;
}

bool AudioFileSourceSD::isOpen() {
    return f ? true : false;
}

uint32_t AudioFileSourceSD::getSize() {
    if (!f) {
        return 0;
    }
    return f.size();
}

uint32_t AudioFileSourceSD::getPos() {
    if (!f) {
        return 0;
    }
    return f.position();
}
