/*
 * Copyright 2009-2010 Cybozu Labs, Inc.
 * Copyright 2011-2014 Kazuho Oku
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice,
 *    this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * 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 HOLDER 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.
 */
#include <curl/curl.h>
#include "../picojson.h"

typedef struct {
  char* data;   // response data from server
  size_t size;  // response size of data
} MEMFILE;

MEMFILE*
memfopen() {
  MEMFILE* mf = (MEMFILE*) malloc(sizeof(MEMFILE));
  mf->data = NULL;
  mf->size = 0;
  return mf;
}

void
memfclose(MEMFILE* mf) {
  if (mf->data) free(mf->data);
  free(mf);
}

size_t
memfwrite(char* ptr, size_t size, size_t nmemb, void* stream) {
  MEMFILE* mf = (MEMFILE*) stream;
  int block = size * nmemb;
  if (!mf->data)
    mf->data = (char*) malloc(block);
  else
    mf->data = (char*) realloc(mf->data, mf->size + block);
  if (mf->data) {
    memcpy(mf->data + mf->size, ptr, block);
    mf->size += block;
  }
  return block;
}

char*
memfstrdup(MEMFILE* mf) {
  char* buf = (char*)malloc(mf->size + 1);
  memcpy(buf, mf->data, mf->size);
  buf[mf->size] = 0;
  return buf;
}

using namespace std;
using namespace picojson;

int
main(int argc, char* argv[]) {
  char error[256];

  MEMFILE* mf = memfopen();
  CURL* curl = curl_easy_init();
  curl_easy_setopt(curl, CURLOPT_URL, "https://api.github.com/repos/kazuho/picojson/issues");
  curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0);
  curl_easy_setopt(curl, CURLOPT_USERAGENT, "curl");
  curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, &error);
  curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, memfwrite);
  curl_easy_setopt(curl, CURLOPT_WRITEDATA, mf);
  if (curl_easy_perform(curl) != CURLE_OK) {
    cerr << error << endl;
  } else {
    value v;
    string err;
    parse(v, mf->data, mf->data + mf->size, &err);
    if (err.empty()) {
      array arr = v.get<array>();
      array::iterator it;
      for (it = arr.begin(); it != arr.end(); it++) {
        object obj = it->get<object>();
        cout << "#" << obj["number"].to_str() << ": " << obj["title"].to_str() << endl;
        cout << "  " << obj["html_url"].to_str() << endl << endl;
      }
    } else {
      cerr << err << endl;
    }
  }
  curl_easy_cleanup(curl);
  memfclose(mf);

  return 0;
}