const fs = require('fs');
const state = require('./state.js');
const logger = require('./logging.js');

function readWarnings() {
  // Load the warnings file into the application state.
  var readFilePath = '/data/discordWarnings.json';
  fs.readFile(readFilePath, 'utf8', function (err, data) {
    if (err) { throw err; }
    if (data) {
      state.warnings = JSON.parse(data);
      logger.debug('Loaded warnings file.');
    } else {
      logger.warn(`${readFilePath} appears to be an empty file.`);
    }
  });
}

function readBans() {
  // Load the ban file into the application state.
  var readFilePath = '/data/discordBans.json';
  fs.readFile(readFilePath, 'utf8', function (err, data) {
    if (err) { throw err; }
    if (data) {
      state.bans = JSON.parse(data);
      logger.debug('Loaded bans file.');
    } else {
      logger.warn(`${readFilePath} appears to be an empty file.`);
    }
  });
}

function readCustomResponses() {
  // Load the responses file into the responses variable.
  state.responses  = require(`./responses/${process.env.TENANT}.json`);
  logger.debug(`Loaded responses file for ${process.env.TENANT} from external source.`);
}

function flushWarnings() {
  var warningsJson = JSON.stringify(state.warnings, null, 4);
  fs.writeFile('/data/discordWarnings.json', warningsJson, 'utf8', function (err) {
    if (err) { throw err; }
  });
}

function flushBans() {
  var bansJson = JSON.stringify(state.bans, null, 4);
  fs.writeFile('/data/discordBans.json', bansJson, 'utf8', function (err) {
    if (err) { throw err; }
  });
}

module.exports = { readWarnings: readWarnings, readBans: readBans, readCustomResponses: readCustomResponses, flushWarnings: flushWarnings, flushBans: flushBans };