const assert = require('assert');

const checkEnvs = () => {
  assert.ok(process.env.JAMBONES_MYSQL_HOST &&
		process.env.JAMBONES_MYSQL_USER &&
		process.env.JAMBONES_MYSQL_PASSWORD &&
		process.env.JAMBONES_MYSQL_DATABASE, 'missing JAMBONES_MYSQL_XXX env vars');
  assert.ok(process.env.DRACHTIO_PORT || process.env.DRACHTIO_HOST, 'missing DRACHTIO_PORT env var');
  assert.ok(process.env.DRACHTIO_SECRET, 'missing DRACHTIO_SECRET env var');
  assert.ok(process.env.JAMBONES_FREESWITCH, 'missing JAMBONES_FREESWITCH env var');
  if (process.env.JAMBONES_REDIS_SENTINELS) {
    assert.ok(process.env.JAMBONES_REDIS_SENTINEL_MASTER_NAME,
      'missing JAMBONES_REDIS_SENTINEL_MASTER_NAME env var, JAMBONES_REDIS_SENTINEL_PASSWORD env var is optional');
  } else {
    assert.ok(process.env.JAMBONES_REDIS_HOST, 'missing JAMBONES_REDIS_HOST env var');
  }
  assert.ok(process.env.JAMBONES_NETWORK_CIDR || process.env.K8S, 'missing JAMBONES_SUBNET env var');
};

const NODE_ENV = process.env.NODE_ENV;

/* database mySQL */
const JAMBONES_MYSQL_HOST = process.env.JAMBONES_MYSQL_HOST;
const JAMBONES_MYSQL_USER = process.env.JAMBONES_MYSQL_USER;
const JAMBONES_MYSQL_PASSWORD = process.env.JAMBONES_MYSQL_PASSWORD;
const JAMBONES_MYSQL_DATABASE = process.env.JAMBONES_MYSQL_DATABASE;
const JAMBONES_MYSQL_PORT = parseInt(process.env.JAMBONES_MYSQL_PORT, 10) || 3306;
const JAMBONES_MYSQL_REFRESH_TTL = parseInt(process.env.JAMBONES_MYSQL_REFRESH_TTL, 10) || 0;
const JAMBONES_MYSQL_CONNECTION_LIMIT = parseInt(process.env.JAMBONES_MYSQL_CONNECTION_LIMIT, 10) || 10;

/* gather and hints */
const JAMBONES_GATHER_EARLY_HINTS_MATCH = process.env.JAMBONES_GATHER_EARLY_HINTS_MATCH;
const JAMBONZ_GATHER_EARLY_HINTS_MATCH = process.env.JAMBONZ_GATHER_EARLY_HINTS_MATCH;
const JAMBONES_GATHER_CLEAR_GLOBAL_HINTS_ON_EMPTY_HINTS = process.env.JAMBONES_GATHER_CLEAR_GLOBAL_HINTS_ON_EMPTY_HINTS;

const SMPP_URL = process.env.SMPP_URL;

/* drachtio */
const DRACHTIO_PORT = process.env.DRACHTIO_PORT;
const DRACHTIO_HOST = process.env.DRACHTIO_HOST;
const DRACHTIO_SECRET = process.env.DRACHTIO_SECRET;

/* freeswitch */
const JAMBONES_API_BASE_URL = process.env.JAMBONES_API_BASE_URL;
const JAMBONES_FREESWITCH = process.env.JAMBONES_FREESWITCH;
const JAMBONES_FREESWITCH_MAX_CALL_DURATION_MINS = parseInt(process.env.JAMBONES_FREESWITCH_MAX_CALL_DURATION_MINS, 10)
	|| 180;


const JAMBONES_SBCS = process.env.JAMBONES_SBCS;

/* websockets */
const JAMBONES_WS_HANDSHAKE_TIMEOUT_MS = parseInt(process.env.JAMBONES_WS_HANDSHAKE_TIMEOUT_MS, 10) || 1500;
const JAMBONES_WS_MAX_PAYLOAD = parseInt(process.env.JAMBONES_WS_MAX_PAYLOAD, 10) || 24 * 1024;
const JAMBONES_WS_PING_INTERVAL_MS = parseInt(process.env.JAMBONES_WS_PING_INTERVAL_MS, 10) || 0;
const MAX_RECONNECTS = 5;
const RESPONSE_TIMEOUT_MS = parseInt(process.env.JAMBONES_WS_API_MSG_RESPONSE_TIMEOUT, 10) || 5000;

const JAMBONES_NETWORK_CIDR = process.env.JAMBONES_NETWORK_CIDR;
const JAMBONES_TIME_SERIES_HOST = process.env.JAMBONES_TIME_SERIES_HOST;
const JAMBONES_CLUSTER_ID = process.env.JAMBONES_CLUSTER_ID || 'default';
const JAMBONES_ESL_LISTEN_ADDRESS = process.env.JAMBONES_ESL_LISTEN_ADDRESS;

/* tracing */
const JAMBONES_OTEL_ENABLED = process.env.JAMBONES_OTEL_ENABLED;
const JAMBONES_OTEL_SERVICE_NAME = process.env.JAMBONES_OTEL_SERVICE_NAME || 'jambonz-feature-server';
const OTEL_EXPORTER_JAEGER_AGENT_HOST = process.env.OTEL_EXPORTER_JAEGER_AGENT_HOST;
const OTEL_EXPORTER_JAEGER_ENDPOINT = process.env.OTEL_EXPORTER_JAEGER_ENDPOINT;
const OTEL_EXPORTER_ZIPKIN_URL = process.env.OTEL_EXPORTER_ZIPKIN_URL;
const OTEL_EXPORTER_COLLECTOR_URL = process.env.OTEL_EXPORTER_COLLECTOR_URL;

const JAMBONES_LOGLEVEL = process.env.JAMBONES_LOGLEVEL || 'info';
const JAMBONES_INJECT_CONTENT = process.env.JAMBONES_INJECT_CONTENT;

const PORT = parseInt(process.env.HTTP_PORT, 10) || 3000;
const HTTP_PORT_MAX = parseInt(process.env.HTTP_PORT_MAX, 10);

const K8S = process.env.K8S;
const K8S_SBC_SIP_SERVICE_NAME = process.env.K8S_SBC_SIP_SERVICE_NAME;

const JAMBONES_SUBNET = process.env.JAMBONES_SUBNET;

/* clean up */
const JAMBONZ_CLEANUP_INTERVAL_MINS = process.env.JAMBONZ_CLEANUP_INTERVAL_MINS;
const getCleanupIntervalMins = () => {
  const interval = parseInt(JAMBONZ_CLEANUP_INTERVAL_MINS, 10) || 60;
  return 1000 * 60 * interval;
};

/* speech vendors */
const AWS_REGION = process.env.AWS_REGION;
const AWS_ACCESS_KEY_ID = process.env.AWS_ACCESS_KEY_ID;
const AWS_SECRET_ACCESS_KEY = process.env.AWS_SECRET_ACCESS_KEY;
const AWS_SNS_PORT = parseInt(process.env.AWS_SNS_PORT, 10) || 3001;
const AWS_SNS_TOPIC_ARM = process.env.AWS_SNS_TOPIC_ARM;
const AWS_SNS_PORT_MAX = parseInt(process.env.AWS_SNS_PORT_MAX, 10) || 3005;

const GCP_JSON_KEY = process.env.GCP_JSON_KEY;

const MICROSOFT_REGION = process.env.MICROSOFT_REGION;
const MICROSOFT_API_KEY = process.env.MICROSOFT_API_KEY;

const SONIOX_API_KEY = process.env.SONIOX_API_KEY;

const DEEPGRAM_API_KEY = process.env.DEEPGRAM_API_KEY;

const ANCHOR_MEDIA_ALWAYS = process.env.ANCHOR_MEDIA_ALWAYS;
const VMD_HINTS_FILE = process.env.VMD_HINTS_FILE;

/* security, secrets */
const LEGACY_CRYPTO = !!process.env.LEGACY_CRYPTO;
const JWT_SECRET = process.env.JWT_SECRET;
const ENCRYPTION_SECRET = process.env.ENCRYPTION_SECRET;

/* HTTP/1 pool dispatcher */
const HTTP_POOL = process.env.HTTP_POOL && parseInt(process.env.HTTP_POOL);
const HTTP_POOLSIZE = parseInt(process.env.HTTP_POOLSIZE, 10) || 10;
const HTTP_PIPELINING = parseInt(process.env.HTTP_PIPELINING, 10) || 1;
const HTTP_TIMEOUT = 10000;
const HTTP_PROXY_IP = process.env.JAMBONES_HTTP_PROXY_IP;
const HTTP_PROXY_PORT = process.env.JAMBONES_HTTP_PROXY_PORT;
const HTTP_PROXY_PROTOCOL = process.env.JAMBONES_HTTP_PROXY_PROTOCOL || 'http';
const HTTP_USER_AGENT_HEADER = process.env.JAMBONES_HTTP_USER_AGENT_HEADER || 'jambonz';

const OPTIONS_PING_INTERVAL = parseInt(process.env.OPTIONS_PING_INTERVAL, 10) || 30000;

const JAMBONZ_RECORD_WS_BASE_URL = process.env.JAMBONZ_RECORD_WS_BASE_URL || process.env.JAMBONES_RECORD_WS_BASE_URL;
const JAMBONZ_RECORD_WS_USERNAME = process.env.JAMBONZ_RECORD_WS_USERNAME || process.env.JAMBONES_RECORD_WS_USERNAME;
const JAMBONZ_RECORD_WS_PASSWORD = process.env.JAMBONZ_RECORD_WS_PASSWORD || process.env.JAMBONES_RECORD_WS_PASSWORD;
const JAMBONZ_DISABLE_DIAL_PAI_HEADER = process.env.JAMBONZ_DISABLE_DIAL_PAI_HEADER || false;
const JAMBONES_DISABLE_DIRECT_P2P_CALL = process.env.JAMBONES_DISABLE_DIRECT_P2P_CALL || false;

const JAMBONES_EAGERLY_PRE_CACHE_AUDIO = parseInt(process.env.JAMBONES_EAGERLY_PRE_CACHE_AUDIO, 10) || 0;

const JAMBONES_USE_FREESWITCH_TIMER_FD = process.env.JAMBONES_USE_FREESWITCH_TIMER_FD;

module.exports = {
  JAMBONES_MYSQL_HOST,
  JAMBONES_MYSQL_USER,
  JAMBONES_MYSQL_PASSWORD,
  JAMBONES_MYSQL_DATABASE,
  JAMBONES_MYSQL_REFRESH_TTL,
  JAMBONES_MYSQL_CONNECTION_LIMIT,
  JAMBONES_MYSQL_PORT,

  DRACHTIO_PORT,
  DRACHTIO_HOST,
  DRACHTIO_SECRET,

  JAMBONES_GATHER_EARLY_HINTS_MATCH,
  JAMBONZ_GATHER_EARLY_HINTS_MATCH,
  JAMBONES_GATHER_CLEAR_GLOBAL_HINTS_ON_EMPTY_HINTS,
  JAMBONES_FREESWITCH,
  SMPP_URL,
  JAMBONES_NETWORK_CIDR,
  JAMBONES_API_BASE_URL,
  JAMBONES_TIME_SERIES_HOST,
  JAMBONES_INJECT_CONTENT,
  JAMBONES_EAGERLY_PRE_CACHE_AUDIO,
  JAMBONES_ESL_LISTEN_ADDRESS,
  JAMBONES_SBCS,
  JAMBONES_OTEL_ENABLED,
  JAMBONES_OTEL_SERVICE_NAME,
  OTEL_EXPORTER_JAEGER_AGENT_HOST,
  OTEL_EXPORTER_JAEGER_ENDPOINT,
  OTEL_EXPORTER_ZIPKIN_URL,
  OTEL_EXPORTER_COLLECTOR_URL,

  JAMBONES_LOGLEVEL,
  JAMBONES_CLUSTER_ID,
  PORT,
  HTTP_PORT_MAX,
  K8S,
  K8S_SBC_SIP_SERVICE_NAME,
  JAMBONES_SUBNET,
  NODE_ENV,
  JAMBONZ_CLEANUP_INTERVAL_MINS,
  getCleanupIntervalMins,
  checkEnvs,

  AWS_REGION,
  AWS_ACCESS_KEY_ID,
  AWS_SECRET_ACCESS_KEY,
  AWS_SNS_PORT,
  AWS_SNS_TOPIC_ARM,
  AWS_SNS_PORT_MAX,

  ANCHOR_MEDIA_ALWAYS,
  VMD_HINTS_FILE,
  JAMBONES_FREESWITCH_MAX_CALL_DURATION_MINS,

  LEGACY_CRYPTO,
  JWT_SECRET,
  ENCRYPTION_SECRET,
  HTTP_POOL,
  HTTP_POOLSIZE,
  HTTP_PIPELINING,
  HTTP_TIMEOUT,
  HTTP_PROXY_IP,
  HTTP_PROXY_PORT,
  HTTP_PROXY_PROTOCOL,
  HTTP_USER_AGENT_HEADER,
  OPTIONS_PING_INTERVAL,
  RESPONSE_TIMEOUT_MS,
  JAMBONES_WS_HANDSHAKE_TIMEOUT_MS,
  JAMBONES_WS_MAX_PAYLOAD,
  JAMBONES_WS_PING_INTERVAL_MS,
  MAX_RECONNECTS,
  GCP_JSON_KEY,
  MICROSOFT_REGION,
  MICROSOFT_API_KEY,
  SONIOX_API_KEY,
  DEEPGRAM_API_KEY,
  JAMBONZ_RECORD_WS_BASE_URL,
  JAMBONZ_RECORD_WS_USERNAME,
  JAMBONZ_RECORD_WS_PASSWORD,
  JAMBONZ_DISABLE_DIAL_PAI_HEADER,
  JAMBONES_DISABLE_DIRECT_P2P_CALL,
  JAMBONES_USE_FREESWITCH_TIMER_FD
};