const textAnalytic = require("./textAnalystic");
const search = require("./search");
const machineRead = require("./machineRead");

/**
 * @param req - request
 * @param req.body.data - client에서 보내는 데이터 req.body.data.text에 검색할 문장을 담아야 합니다
 * @description client와 데이터를 받아 통신하는 함수입니다
 */
const cliConnection = async (req, res) => {
  let clientData = {},
    analyzeData = {},
    searchData = [];
   
  // clientData
  try {
      clientData = req.body.data;
      if( !clientData.text.replace( /\s/g, '' ).length ) {
          throw new Error( "client text empty" );
      }
  }
  catch ( err ) {
      console.log( err );
      res.json( { "return_code" : -1, "error_code" : err.message } );
      res.status( 403 );
      return false;
  }
  
  // analyzeData
  try {
      analyzeData = await textAnalytic( clientData );
  }
  catch ( err ) {
      console.log( err );
      res.json( { "return_code" : -1, "error_code" : err.message } );
      res.status( 502 );
      return false;
  }

  // searchData
  searchData = searchData[ 0 ].concat( searchData[ 1 ] );
    try {
        searchData = await machineRead( searchData, analyzeData.keywordText );
    }
    catch ( err ) {
        console.log( err );
        res.json( { "return_code" : -1, "error_code" : err.message } );
        res.status( 502 );
        return false;
    }

  analyzeData.searchResults = searchData;
  res.send({ return_code: 0, return_data: analyzeData });
  res.status(200);
};

module.exports = cliConnection;