import { updateApplicationContext, watchEvents, getIsWatchAppInstalled } from 'react-native-watch-connectivity';
import { InteractionManager } from 'react-native';
import { Chain } from './models/bitcoinUnits';
import loc, { formatBalance, transactionTimeToReadable } from './loc';
const notifications = require('./blue_modules/notifications');

const WatchConnectivity = () => {
  const handleMessages = (message, reply) => {
    const BlueApp = require('./BlueApp');
    if (message.request === 'createInvoice') {
      handleLightningInvoiceCreateRequest(message.walletIndex, message.amount, message.description)
        .then(createInvoiceRequest => reply({ invoicePaymentRequest: createInvoiceRequest }))
        .catch(e => console.log(e));
    } else if (message.message === 'sendApplicationContext') {
      WatchConnectivity.sendWalletsToWatch();
    } else if (message.message === 'fetchTransactions') {
      BlueApp.fetchWalletTransactions().then(() => BlueApp.saveToDisk());
    }
  };

  const handleLightningInvoiceCreateRequest = async (walletIndex, amount, description = loc.lnd.placeholder) => {
    const BlueApp = require('./BlueApp');
    const wallet = BlueApp.getWallets()[walletIndex];
    if (wallet.allowReceive() && amount > 0) {
      try {
        const invoiceRequest = await wallet.addInvoice(amount, description);

        // lets decode payreq and subscribe groundcontrol so we can receive push notification when our invoice is paid
        try {
          // Let's verify if notifications are already configured. Otherwise the watch app will freeze waiting for user approval in iOS app
          if (await notifications.isNotificationsEnabled()) {
            const decoded = await wallet.decodeInvoice(invoiceRequest);
            notifications.majorTomToGroundControl([], [decoded.payment_hash], []);
          }
        } catch (e) {
          console.log('WatchConnectivity - Running in Simulator');
          console.log(e);
        }
        return invoiceRequest;
      } catch (error) {
        return error;
      }
    }
  };

  getIsWatchAppInstalled().then(installed => {
    if (installed) {
      watchEvents.addListener('message', handleMessages);
    }
  });
};

WatchConnectivity.sendWalletsToWatch = () => {
  getIsWatchAppInstalled().then(installed => {
    if (!installed) return;
    const BlueApp = require('./BlueApp');
    const allWallets = BlueApp.getWallets();
    if (!Array.isArray(allWallets)) {
      console.log('No Wallets set to sync with Watch app. Exiting...');
      return;
    } else if (allWallets.length === 0) {
      console.log('Wallets array is set. No Wallets set to sync with Watch app. Exiting...');
      return;
    }

    return InteractionManager.runAfterInteractions(async () => {
      const BlueApp = require('./BlueApp');
      const wallets = [];

      for (const wallet of allWallets) {
        let receiveAddress;
        if (wallet.getAddressAsync) {
          if (wallet.chain === Chain.ONCHAIN) {
            try {
              receiveAddress = await wallet.getAddressAsync();
            } catch (_) {}
            if (!receiveAddress) {
              // either sleep expired or getAddressAsync threw an exception
              receiveAddress = wallet._getExternalAddressByIndex(wallet.next_free_address_index);
            }
          } else if (wallet.chain === Chain.OFFCHAIN) {
            try {
              await wallet.getAddressAsync();
              receiveAddress = wallet.getAddress();
            } catch (_) {}
            if (!receiveAddress) {
              // either sleep expired or getAddressAsync threw an exception
              receiveAddress = wallet.getAddress();
            }
          }
        }
        const transactions = wallet.getTransactions(10);
        const watchTransactions = [];
        for (const transaction of transactions) {
          let type = 'pendingConfirmation';
          let memo = '';
          let amount = 0;

          if ('confirmations' in transaction && !(transaction.confirmations > 0)) {
            type = 'pendingConfirmation';
          } else if (transaction.type === 'user_invoice' || transaction.type === 'payment_request') {
            const currentDate = new Date();
            const now = (currentDate.getTime() / 1000) | 0;
            const invoiceExpiration = transaction.timestamp + transaction.expire_time;

            if (invoiceExpiration > now) {
              type = 'pendingConfirmation';
            } else if (invoiceExpiration < now) {
              if (transaction.ispaid) {
                type = 'received';
              } else {
                type = 'sent';
              }
            }
          } else if (transaction.value / 100000000 < 0) {
            type = 'sent';
          } else {
            type = 'received';
          }
          if (transaction.type === 'user_invoice' || transaction.type === 'payment_request') {
            amount = isNaN(transaction.value) ? '0' : amount;
            const currentDate = new Date();
            const now = (currentDate.getTime() / 1000) | 0;
            const invoiceExpiration = transaction.timestamp + transaction.expire_time;

            if (invoiceExpiration > now) {
              amount = formatBalance(transaction.value, wallet.getPreferredBalanceUnit(), true).toString();
            } else if (invoiceExpiration < now) {
              if (transaction.ispaid) {
                amount = formatBalance(transaction.value, wallet.getPreferredBalanceUnit(), true).toString();
              } else {
                amount = loc.lnd.expired;
              }
            } else {
              amount = formatBalance(transaction.value, wallet.getPreferredBalanceUnit(), true).toString();
            }
          } else {
            amount = formatBalance(transaction.value, wallet.getPreferredBalanceUnit(), true).toString();
          }
          if (BlueApp.tx_metadata[transaction.hash] && BlueApp.tx_metadata[transaction.hash].memo) {
            memo = BlueApp.tx_metadata[transaction.hash].memo;
          } else if (transaction.memo) {
            memo = transaction.memo;
          }
          const watchTX = { type, amount, memo, time: transactionTimeToReadable(transaction.received) };
          watchTransactions.push(watchTX);
        }
        wallets.push({
          label: wallet.getLabel(),
          balance: formatBalance(Number(wallet.getBalance()), wallet.getPreferredBalanceUnit(), true),
          type: wallet.type,
          preferredBalanceUnit: wallet.getPreferredBalanceUnit(),
          receiveAddress: receiveAddress,
          transactions: watchTransactions,
          xpub: wallet.getXpub() ? wallet.getXpub() : wallet.getSecret(),
        });
      }
      updateApplicationContext({ wallets, randomID: Math.floor(Math.random() * 11) });
      return { wallets };
    });
  });
};
export default WatchConnectivity;
WatchConnectivity();