#include <stdio.h>

#include "base/basictypes.h"
#include "file/easy_file.h"

LAMEFile::LAMEFile() : file_(NULL) {
  isOpen = false;
}

LAMEFile::~LAMEFile() { }

bool LAMEFile::open(const char *filename, eFileMode mode) {
  file_ = fopen(filename, mode == FILE_READ ? "rb" : "wb");

  if (!file_) {
    isOpen = false;
  } else {
    isOpen = true;
    if (mode == FILE_READ) {
      fseek(file_, 0, SEEK_END);
      size_ = ftell(file_);
      fseek(file_, 0, SEEK_SET);
    }
  }
  return isOpen;
}

void LAMEFile::close() {
  if (isOpen)  {
    //close the file and reset variables
    fclose(file_);
    file_ = NULL;
    isOpen=false;
  }
}

int LAMEFile::fileSize() {
  if (!isOpen) //of course
    return 0;
  else
    return size_;
}

std::string LAMEFile::readAll() {
  std::string s;
  size_t size = fileSize();
  s.resize(size);
  read(&s[0], size);
  return s;
}

int LAMEFile::write(const void *data, int size) {
  if (isOpen) {
    return fwrite(data, 1, size, file_); //we return the number of bytes that actually got written
  } else {
    return 0;
  }
}

int LAMEFile::read(void *data, int size) {
  if (isOpen) {
    return fread(data, 1, size, file_);
  } else {
    return 0;
  }
}

int LAMEFile::readInt() {
  int temp;
  if (read(&temp, sizeof(int)))
    return temp;
  else
    return 0;
}

void LAMEFile::writeInt(int i) {
  write(&i, sizeof(int));
}

char LAMEFile::readChar() {
  char temp;
  if (read(&temp, sizeof(char)))
    return temp;
  else
    return 0;
}

void LAMEFile::writeChar(char i) {
  write(&i,sizeof(char));
}