import _ from 'lodash';
import { logger } from './lib/logger';

const {
  MODE,
  NODE_PROD_URL,
  NODE_DEV_URL,
  NODE_LOCAL_URL,
  DB_HOST,
  DB_PORT,
  EXCHANGER_LIVENET_URL,
  EXCHANGER_TESTNET_URL
} = process.env;
const defaultMode = 'prod';
const mode: 'prod' | 'dev' | 'local' = (MODE as 'prod' | 'dev' | 'local') || defaultMode;
const node = {
  prod: NODE_PROD_URL || 'https://ducapi.rocknblock.io',
  dev: NODE_DEV_URL || 'http://localhost:3000',
  local: NODE_LOCAL_URL || 'http://localhost:3000'
};
const dbConfig: {
  host: string;
  port: string;
} = {
  host: DB_HOST || '127.0.0.1',
  port: DB_PORT || '27017'
};

logger.info(`Mode: ${mode}`);
logger.info(`DB host: ${dbConfig.host}`);
logger.info(`DB host: ${dbConfig.port}`);

const Config = () => {
  let defaultConfig = {
    basePath: '/bws/api',
    disableLogs: false,
    port: 3232,
    nodeUrl: node[mode],
    exchangerUrl: {
      livenet: EXCHANGER_LIVENET_URL || 'https://www.ducatuscoins.com',
      testnet: EXCHANGER_TESTNET_URL || 'https://devducatus.rocknblock.io'
    },
    // Uncomment to make BWS a forking server
    // cluster: true,

    // Uncomment to set the number or process (will use the nr of availalbe CPUs by default)
    // clusterInstances: 4,

    // https: true,
    // privateKeyFile: 'private.pem',
    // certificateFile: 'cert.pem',
    ////// The following is only for certs which are not
    ////// trusted by nodejs 'https' by default
    ////// CAs like Verisign do not require this
    // CAinter1: '', // ex. 'COMODORSADomainValidationSecureServerCA.crt'
    // CAinter2: '', // ex. 'COMODORSAAddTrustCA.crt'
    // CAroot: '', // ex. 'AddTrustExternalCARoot.crt'

    storageOpts: {
      mongoDb: {
        uri: `mongodb://${dbConfig.host}:${dbConfig.port}/bws`,
        dbname: 'bws'
      }
    },
    messageBrokerOpts: {
      //  To use message broker server, uncomment this:
      messageBrokerServer: {
        url: 'http://localhost:3380'
      }
    },
    blockchainExplorerOpts: {
      btc: {
        livenet: {
          url: 'https://api.bitcore.io'
        },
        testnet: {
          url: 'https://api.bitcore.io',
          regtestEnabled: false
        }
      },
      bch: {
        livenet: {
          url: 'https://api.bitcore.io'
        },
        testnet: {
          url: 'https://api.bitcore.io'
        }
      },
      eth: {
        livenet: {
          url: 'https://api-eth.bitcore.io'
        },
        testnet: {
          url: 'https://api-eth.bitcore.io'
        }
      },
      xrp: {
        livenet: {
          url: 'https://api-xrp.bitcore.io'
        },
        testnet: {
          url: 'https://api-xrp.bitcore.io'
        }
      },
      doge: {
        livenet: {
          url: 'https://api.bitcore.io'
        },
        testnet: {
          url: 'https://api.bitcore.io'
        }
      },
      ltc: {
        livenet: {
          url: 'https://api.bitcore.io'
        },
        testnet: {
          url: 'https://api.bitcore.io'
        }
      },
      duc: {
        livenet: {
          url: node[mode]
        },
        testnet: {
          url: node[mode],
          regtestEnabled: false
        }
      },
      ducx: {
        livenet: {
          url: node[mode]
        },
        testnet: {
          url: node[mode]
        }
      },
      socketApiKey: 'socketApiKey'
    },
    pushNotificationsOpts: {
      templatePath: 'templates',
      defaultLanguage: 'en',
      defaultUnit: 'btc',
      subjectPrefix: '',
      pushServerUrl: 'https://fcm.googleapis.com/fcm',
      authorizationKey: 'You_have_to_put_something_here'
    },
    fiatRateServiceOpts: {
      defaultProvider: 'BitPay',
      fetchInterval: 5 // in minutes
    },
    maintenanceOpts: {
      maintenanceMode: false
    },
    services: {
      buyCrypto: { simplexPromotion202002: false }
    },
    suspendedChains: [],
    staticRoot: '/tmp/static'
    // simplex: {
    //   sandbox: {
    //     apiKey: 'simplex_sandbox_api_key_here',
    //     api: 'https://sandbox.test-simplexcc.com',
    //     appProviderId: 'simplex_provider_id_here'
    //   },
    //   production: {
    //     apiKey: 'simplex_production_api_key_here',
    //     api: 'https://backend-wallet-api.simplexcc.com',
    //     appProviderId: 'simplex_provider_id_here'
    //   }
    // },
    // wyre: {
    //   sandbox: {
    //     apiKey: 'wyre_sandbox_api_key_here',
    //     secretApiKey: 'wyre_sandbox_secret_api_key_here',
    //     api: 'https://api.testwyre.com',
    //     widgetUrl: 'https://pay.testwyre.com',
    //     appProviderAccountId: 'wyre_provider_sandbox_account_id_here'
    //   },
    //   production: {
    //     apiKey: 'wyre_production_api_key_here',
    //     secretApiKey: 'wyre_production_secret_api_key_here',
    //     api: 'https://api.sendwyre.com',
    //     widgetUrl: 'https://pay.sendwyre.com/',
    //     appProviderAccountId: 'wyre_provider_production_account_id_here'
    //   }
    // },
    // changelly: {
    //   apiKey: 'changelly_api_key',
    //   secret: 'changelly_secret',
    //   api: 'https://api.changelly.com'
    // },
    // oneInch: {
    //   api: 'https://bitpay.api.enterprise.1inch.exchange',
    //   referrerAddress: 'one_inch_referrer_address', // ETH
    //   referrerFee: 'one_inch_referrer_fee', // min: 0; max: 3; (represents percentage)
    // },
    // To use email notifications uncomment this:
    // emailOpts: {
    //  host: 'localhost',
    //  port: 25,
    //  ignoreTLS: true,
    //  subjectPrefix: '[Wallet Service]',
    //  from: 'wallet-service@bitcore.io',
    //  templatePath: 'templates',
    //  defaultLanguage: 'en',
    //  defaultUnit: 'btc',
    //  publicTxUrlTemplate: {
    //   btc: {
    //     livenet: 'https://bitpay.com/insight/#/BTC/mainnet/tx/{{txid}}',
    //     testnet: 'https://bitpay.com/insight/#/BTC/testnet/tx/{{txid}}',
    //   },
    //   bch: {
    //     livenet: 'https://bitpay.com/insight/#/BCH/mainnet/tx/{{txid}}',
    //     testnet: 'https://bitpay.com/insight/#/BCH/testnet/tx/{{txid}}',
    //   },
    //   eth: {
    //     livenet: 'https://etherscan.io/tx/{{txid}}',
    //     testnet: 'https://kovan.etherscan.io/tx/{{txid}}',
    //   },
    //   xrp: {
    //     livenet: 'https://xrpscan.com/tx/{{txid}}',
    //     testnet: 'https://test.bithomp.com/explorer//tx/{{txid}}',
    //   },
    //   doge: {
    //     livenet: 'https://blockchair.com/dogecoin/transaction/{{txid}}',
    //     testnet: 'https://sochain.com/tx/DOGETEST/{{txid}}',
    //  },
    //   ltc: {
    //     livenet: 'https://bitpay.com/insight/#/LTC/mainnet/tx/{{txid}}',
    //     testnet: 'https://bitpay.com/insight/#/LTC/testnet/tx/{{txid}}',
    //  }
    // },
    // },
    // To use sendgrid:
    // const sgMail = require('@sendgrid/mail');
    // sgMail.setApiKey(process.env.SENDGRID_API_KEY);
    //
    //
    // //then add:
    // mailer: sgMail,
  };

  // Override default values with bws.config.js' values, if present
  try {
    const bwsConfig = require('../bws.config');
    defaultConfig = _.merge(defaultConfig, bwsConfig);
  } catch {
    logger.info('bws.config.js not found, using default configuration values');
  }
  return defaultConfig;
};

module.exports = Config();