var request = require('request-promise');
var common = require('../../routes/common');
var logger = require('../shared/logger');
var swtch = require('./switch');
var options = {};

exports.getFees = (req, res, next) => {
  logger.log({level: 'INFO', fileName: 'Fees', msg: 'Getting Fees..'});
  options = common.getOptions();
  options.url = common.getSelLNServerUrl() + '/v1/fees';
  request(options).then((body) => {
    logger.log({level: 'DEBUG', fileName: 'Fees', msg: 'Fee Received', data: body});
    let today = new Date(Date.now());
    let start_date = new Date(today.getFullYear(), today.getMonth(), 1, 0, 0, 0);
    let current_time = (Math.round(today.getTime()/1000)).toString();
    let month_start_time = (Math.round(start_date.getTime()/1000)).toString();
    let week_start_time = current_time - 604800;
    let day_start_time = current_time - 86400;
    return swtch.getAllForwardingEvents(month_start_time, current_time, 0, (history) => {
      logger.log({level: 'DEBUG', fileName: 'Fees', msg: 'Forwarding History Received', data: history});
      daily_sum = history.forwarding_events.reduce((acc, curr) => (curr.timestamp >= day_start_time) ? [(acc[0] + 1), (acc[1] + +curr.fee_msat)] : acc, [0, 0]);
      weekly_sum = history.forwarding_events.reduce((acc, curr) => (curr.timestamp >= week_start_time) ? [(acc[0] + 1), (acc[1] + +curr.fee_msat)] : acc, [0, 0]);
      monthly_sum = history.forwarding_events.reduce((acc, curr) => [(acc[0] + 1), (acc[1] + +curr.fee_msat)], [0, 0]);
      logger.log({level: 'DEBUG', fileName: 'Fees', msg: 'Daily Sum (Transactions, Fee)', data: daily_sum});
      logger.log({level: 'DEBUG', fileName: 'Fees', msg: 'Weekly Sum (Transactions, Fee)', data: weekly_sum});
      logger.log({level: 'DEBUG', fileName: 'Fees', msg: 'Monthly Sum (Transactions, Fee)', data: monthly_sum});
      body.daily_tx_count = daily_sum[0];
      body.weekly_tx_count = weekly_sum[0];
      body.monthly_tx_count = monthly_sum[0];
      body.day_fee_sum = (daily_sum[1] / 1000).toFixed(2);
      body.week_fee_sum = (weekly_sum[1] / 1000).toFixed(2);
      body.month_fee_sum = (monthly_sum[1] / 1000).toFixed(2);
      body.forwarding_events_history = history;
      if (history.error) { 
        logger.log({level: 'ERROR', fileName: 'Fees', msg: 'Fetch Forwarding Events Error', error: history.error}); 
      }
      logger.log({level: 'INFO', fileName: 'Fees', msg: 'Fees Received'});
      res.status(200).json(body);
    })
  })
  .catch(errRes => {
    const err = common.handleError(errRes,  'Fees', 'Get Forwarding Events Error');
    return res.status(err.statusCode).json({message: err.message, error: err.error});
  });
};