#include <iostream>
#include <map>

#include "json/json.h"

#include "webcc/logger.h"
#include "webcc/rest_ssl_client.h"

// -----------------------------------------------------------------------------

// Change to 1 to print response JSON.
#define PRINT_RESPONSE 0

#if (defined(WIN32) || defined(_WIN64))
// You need to set environment variable SSL_CERT_FILE properly to enable
// SSL verification.
bool kSslVerify = false;
#else
bool kSslVerify = true;
#endif

const std::string kGithubHost = "api.github.com";

// -----------------------------------------------------------------------------

static Json::Value StringToJson(const std::string& str) {
  Json::Value json;

  Json::CharReaderBuilder builder;
  std::stringstream stream(str);
  std::string errors;
  if (!Json::parseFromStream(builder, stream, &json, &errors)) {
    std::cerr << errors << std::endl;
  }

  return json;
}

// Print the JSON string in pretty format.
static void PrettyPrintJsonString(const std::string& str) {
  Json::Value json = StringToJson(str);

  Json::StreamWriterBuilder builder;
  builder["indentation"] = "  ";

  std::unique_ptr<Json::StreamWriter> writer(builder.newStreamWriter());
  writer->write(json, &std::cout);

  std::cout << std::endl;
}

// -----------------------------------------------------------------------------

#if PRINT_RESPONSE
#define PRINT_JSON_STRING(str) PrettyPrintJsonString(str)
#else
#define PRINT_JSON_STRING(str)
#endif  // PRINT_RESPONSE

static void PrintError(const webcc::RestSslClient& client) {
  std::cout << webcc::DescribeError(client.error());
  if (client.timed_out()) {
    std::cout << " (timed out)";
  }
  std::cout << std::endl;
}

// -----------------------------------------------------------------------------

// List public events.
static void ListEvents(webcc::RestSslClient& client) {
  if (client.Get("/events")) {
    PRINT_JSON_STRING(client.response_content());
  } else {
    PrintError(client);
  }
}

// List the followers of the given user.
static void ListUserFollowers(webcc::RestSslClient& client,
                              const std::string& user) {
  if (client.Get("/users/" + user + "/followers")) {
    PRINT_JSON_STRING(client.response_content());
  } else {
    PrintError(client);
  }
}

// List the followers of the current authorized user.
// Header syntax: Authorization: <type> <credentials>
static void ListAuthorizedUserFollowers(webcc::RestSslClient& client,
                                        const std::string& auth) {
  if (client.Get("/user/followers", { { "Authorization", auth } })) {
    PRINT_JSON_STRING(client.response_content());
  } else {
    PrintError(client);
  }
}

// -----------------------------------------------------------------------------

int main() {
  WEBCC_LOG_INIT("", webcc::LOG_CONSOLE);

  webcc::RestSslClient client(kGithubHost, "", kSslVerify, {}, 1500);

  //ListAuthorizedUserFollowers(client, "Basic c3ByaW5mYWxsQGdtYWlsLmNvbTpYaWFvTHVhbjFA");
  ListAuthorizedUserFollowers(client, "Token 1d42e2cce49929f2d24b1b6e96260003e5b3e1b0");

  return 0;
}