/*
 * Copyright (C) 2015 by Multi-Tech Systems
 *
 * This file is part of libmts.
 *
 * libmts is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * libmts 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with libmts.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#include <mts/MTS_Buffer.h>
#include <stdexcept>
#include <string>

using namespace MTS;

const uint32_t Buffer::DEFAULT_CAPACITY = 80;

Buffer::Buffer(uint32_t capacity) {
    setCapacity(capacity);
}

Buffer::Buffer(const uint8_t* bytes, uint32_t count)
: m_vBuffer(bytes, bytes + count) {

}

Buffer::Buffer(const Buffer& other)
: m_vBuffer(other.m_vBuffer.begin(), other.m_vBuffer.end()) {

}

Buffer::~Buffer() {

}

Buffer&
Buffer::operator=(const Buffer& other) {
    if (&other == this) {
        return *this;
    }
    m_vBuffer = other.m_vBuffer;
    return *this;
}

const uint8_t*
Buffer::getBuffer() const {
    return &m_vBuffer.at(0);
}

std::string Buffer::str() const {
    return std::string(reinterpret_cast<const char*>(&m_vBuffer.at(0)), m_vBuffer.size());
}

uint32_t Buffer::getSize() const {
    return m_vBuffer.size();
}

void Buffer::setSize(uint32_t newSize) {
    m_vBuffer.resize(newSize);
}

uint32_t Buffer::getCapacity() const {
    return m_vBuffer.capacity();
}

void Buffer::setCapacity(uint32_t newCapacity) {
    m_vBuffer.reserve(newCapacity);
}

void Buffer::clear() {
    m_vBuffer.clear();
}

void Buffer::compact() {
    m_vBuffer.resize(m_vBuffer.size());
}

uint8_t Buffer::operator[](uint32_t index) const {
    return m_vBuffer[index];
}

uint8_t Buffer::operator[](uint32_t index) {
    return m_vBuffer[index];
}

const uint8_t&
Buffer::at(uint32_t index) const {
    return m_vBuffer.at(index);
}

uint8_t&
Buffer::at(uint32_t index) {
    return m_vBuffer.at(index);
}

Buffer&
Buffer::append(uint8_t byte) {
    m_vBuffer.push_back(byte);
    return *this;
}

Buffer& Buffer::append(const uint8_t* bytes, uint32_t count) {
    m_vBuffer.resize(m_vBuffer.size() + count);
    std::copy(bytes, bytes + count, std::back_inserter(m_vBuffer));
    return *this;
}

Buffer&
Buffer::insert(uint32_t index, uint8_t byte) {
    m_vBuffer.insert(m_vBuffer.begin() + index, byte);
    return *this;
}

Buffer&
Buffer::insert(uint32_t index, const uint8_t* bytes, uint32_t count) {
    m_vBuffer.insert(m_vBuffer.begin() + index, bytes, bytes + count);
    return *this;
}

Buffer&
Buffer::remove(uint32_t index) {
    m_vBuffer.erase(m_vBuffer.begin() + index);
    return *this;
}

Buffer&
Buffer::remove(uint32_t start, uint32_t end) {
    m_vBuffer.erase(m_vBuffer.begin() + start, m_vBuffer.begin() + end);
    return *this;
}

Buffer&
Buffer::replace(uint32_t start, uint32_t end, const uint8_t* bytes,
uint32_t count) {
    if (end - start == count) {
        if (start > end || end > m_vBuffer.size()) {
            throw std::out_of_range("Buffer| index out of bounds");
        }
        std::copy(bytes, bytes + count, m_vBuffer.begin());
        return *this;
    }
    return remove(start, end).insert(start, bytes, count);
}

Buffer* Buffer::clone() const {
    return new Buffer(*this);
}