#include <stdio.h>
#include <stdint.h>
#include <string.h>

extern "C" {
#include "libmumble.h"
}

static int verify_cert(uint8_t* x509_pem_certificates, uint32_t size)
{
  printf("I received a buffer of %d bytes!\n", size);
  const char FILENAME[] = "/tmp/cert";

  FILE* outfile = fopen(FILENAME, "wb");
  if (outfile != NULL)
  {
    fwrite(x509_pem_certificates, 1, size, outfile);
    fclose(outfile);
    printf("Written to %s\n", FILENAME);
  }

  // Accept every cert
  return 1;
}

void mumble_version_callback(uint16_t major, uint8_t minor, uint8_t patch, char* release, char* os, char* os_version)
{
  printf("Version Callback: v%d.%d.%d. %s/%s/%s\n", major, minor, patch, release, os, os_version);
}

void mumble_audio_callback(uint8_t* audio_data, uint32_t audio_data_size)
{
  printf("I received %d bytes of audio data\n", audio_data_size);
}

void mumble_serversync_callback(char* welcome_text, int32_t session, int32_t max_bandwidth, int64_t permissions)
{
  printf("%s\n", welcome_text);
}

void mumble_channelremove_callback(uint32_t channel_id)
{
  printf("Channel %d removed\n", channel_id);
}

void mumble_channelstate_callback(char* name, int32_t channel_id, int32_t parent, char* description, uint32_t* links, uint32_t n_links, uint32_t* links_add, uint32_t n_links_add, uint32_t* links_remove, uint32_t n_links_remove, int32_t temporary, int32_t position)
{
  printf("Obtained channel state\n");
}

void mumble_userremove_callback(uint32_t session, int32_t actor, char* reason, int32_t ban)
{
  printf("User %d removed\n", actor);
}

void mumble_userstate_callback(int32_t session, int32_t actor, char* name, int32_t user_id, int32_t channel_id, int32_t mute, int32_t deaf, int32_t suppress, int32_t self_mute, int32_t self_deaf, char* comment, int32_t priority_speaker, int32_t recording)
{
  printf("userstate_callback\n");
}

void mumble_banlist_callback(uint8_t* ip_data, uint32_t ip_data_size, uint32_t mask, char* name, char* hash, char* reason, char* start, int32_t duration)
{
  printf("banlist_callback\n");
}

void mumble_textmessage_callback(uint32_t actor, uint32_t n_session, uint32_t* session, uint32_t n_channel_id, uint32_t* channel_id, uint32_t n_tree_id, uint32_t* tree_id, char* message)
{
  printf("textmessage_callback\n");
}

void mumble_permissiondenied_callback(int32_t permission, int32_t channel_id, int32_t session, char* reason, int32_t deny_type, char* name)
{
  printf("permissiondenied_callback\n");
}

void mumble_acl_callback(void)
{
  printf("acl_callback\n");
}

void mumble_queryusers_callback(uint32_t n_ids, uint32_t* ids, uint32_t n_names, char** names)
{
  printf("queryusers_callback\n");
}

void mumble_cryptsetup_callback(uint32_t key_size, uint8_t* key, uint32_t client_nonce_size, uint8_t* client_nonce, uint32_t server_nonce_size, uint8_t* server_nonce)
{
  printf("cryptsetup_callback\n");
}

void mumble_contextactionmodify_callback(char* action, char* text, uint32_t m_context, uint32_t operation)
{
  printf("contextactionmodify_callback\n");
}

void mumble_contextaction_callback(int32_t session, int32_t channel_id, char* action)
{
  printf("contextaction_callback\n");
}

void mumble_userlist_callback(uint32_t user_id, char* name, char* last_seen, int32_t last_channel)
{
  printf("userlist_callback\n");
}

void mumble_voicetarget_callback(void)
{
  printf("voicetarget_callback\n");
}

void mumble_permissionquery_callback(int32_t channel_id, uint32_t permissions, int32_t flush)
{
  printf("permissionquery_callback\n");
}

void mumble_codecversion_callback(int32_t alpha, int32_t beta, uint32_t prefer_alpha, int32_t opus)
{
  printf("codecversion_callback\n");
}

void mumble_userstats_callback(void)
{
  printf("userstats_callback\n");
}

void mumble_requestblob_callback(void)
{
  printf("requestblob_callback\n");
}

void mumble_serverconfig_callback(uint32_t max_bandwidth, char* welcome_text, uint32_t allow_html, uint32_t message_length, uint32_t image_message_length)
{
  printf("serverconfig_callback\n");
}

void mumble_suggestconfig_callback(uint32_t version, uint32_t positional, uint32_t push_to_talk)
{
  printf("suggestconfig_callback\n");
}

int main(int argc, char* argv[])
{
  if (argc < 2)
  {
    printf("Usage: %s <mumble server ip> [mumble server port] [server password]\n", argv[0]);
    return -1;
  }

  char* host = argv[1];
  char* port = "64738";
  char* password = "hello";
  if (argc >= 3)
  {
    port = argv[2];
  }
  if (argc >= 4)
  {
    password = argv[3];
  }

  struct mumble_config config;
  memset(&config, 0, sizeof(config));
  config.size = sizeof(config);
  config.host = host;
  config.port = port;
  config.server_password = password;
  config.username = "example_username";
  config.user_cert_filename = NULL;
  config.user_privkey_filename = NULL;
  config.ssl_verification_callback = verify_cert;

  config.version_callback             = mumble_version_callback;
  config.audio_callback               = mumble_audio_callback;
  config.serversync_callback          = mumble_serversync_callback;
  config.channelremove_callback       = mumble_channelremove_callback;
  config.channelstate_callback        = mumble_channelstate_callback;
  config.userremove_callback          = mumble_userremove_callback;
  config.userstate_callback           = mumble_userstate_callback;
  config.banlist_callback             = mumble_banlist_callback;
  config.textmessage_callback         = mumble_textmessage_callback;
  config.permissiondenied_callback    = mumble_permissiondenied_callback;
  config.acl_callback                 = mumble_acl_callback;
  config.queryusers_callback          = mumble_queryusers_callback;
  config.cryptsetup_callback          = mumble_cryptsetup_callback;
  config.contextactionmodify_callback = mumble_contextactionmodify_callback;
  config.contextaction_callback       = mumble_contextaction_callback;
  config.userlist_callback            = mumble_userlist_callback;
  config.voicetarget_callback         = mumble_voicetarget_callback;
  config.permissionquery_callback     = mumble_permissionquery_callback;
  config.codecversion_callback        = mumble_codecversion_callback;
  config.userstats_callback           = mumble_userstats_callback;
  config.requestblob_callback         = mumble_requestblob_callback;
  config.serverconfig_callback        = mumble_serverconfig_callback;
  config.suggestconfig_callback       = mumble_suggestconfig_callback;

  struct mumble_struct* mumble = mumble_connect(NULL, &config);
  if (mumble == NULL)
  {
    printf("Couldn't establish mumble connection\n");
    return -1;
  }

  // Start processing here?

  int quit = 0;
  while (quit == 0)
  {
    if (mumble_tick(mumble) < 0)
    {
      quit = 1;
    }

    // Other processing here?
  }

  mumble_close(mumble);

  printf("Done\n");

  return 0;
}