asksuite-core/keyword_interpreter/keyword-matcher.js

const KeywordUtil = require('./keyword-util');
const intents = require('./intents');
const PromiseBlueBird = require('bluebird');

module.exports = function(config) {
  const apiai = require('./apiai')(config.API_AI_DEVELOPER);

  const KeywordMatcher = {};

  function isDialogFlow(operation) {
    return operation.entityType == 'dialogFlow';
  }

  function isSystemOperation(operation) {
    return operation.entityType == 'system';
  }

  function isDate(operation) {
    return operation.entity == 'date';
  }

  function isNumber(operation) {
    return operation.entity == 'number';
  }

  KeywordMatcher.refreshCache = function() {
    return new Promise((resolve, reject) => {
      const cacheForSearch = {};

      apiai
        .getEntities()
        .then(async () => {
          PromiseBlueBird.map(
            async item => {
              return await apiai.getKeywordsFromEntity(item);
            },
            { concurrency: 1 },
          )
            .then(data => {
              data.forEach(item => {
                if (item != null) {
                  cacheForSearch[item.key.name] = item.data;
                }
              });

              resolve(cacheForSearch);
            })
            .catch(error => {
              reject(error);
            });
        })
        .catch(error => {
          reject(error);
        });
    });
  };

  function evaluate(string, expression, cache) {
    string = string.toLowerCase();
    const isNegative = expression.operation.indexOf('not_') >= 0;
    let value = false;

    if (expression.operation.indexOf('contains') >= 0) {
      if (isDialogFlow(expression)) {
        // console.log("key"+expression.entity)
        value = KeywordUtil.hasWordInString(string, cache[expression.entity]);

        // console.log(string,  cache[expression.entity])
        // console.log(cache[expression.entity]);
        // console.log("contem key"+expression.entity, value);
      } else if (isSystemOperation(expression)) {
        if (isDate(expression)) {
          value = KeywordUtil.hasDate(string);
          // console.log("contem data", value);
        } else if (isNumber(expression)) {
          value = KeywordUtil.hasNumber(string);
        }
      }
    }

    return isNegative ? !value : value;
  }

  function execute(str, intent, cache) {
    return new Promise(resolve => {
      const result = intent.expressions.map(item => {
        return evaluate(str, item, cache);
      });

      if (result.indexOf(false) >= 0) {
        resolve({ match: false, item: intent });
      } else {
        resolve({ match: true, item: intent });
      }
    });
  }

  async function evaluateExpressions(string, expressions, cache) {
    const promises = [];

    expressions.forEach(item => {
      promises.push(execute(string, item, cache));
    });

    const data = await Promise.all(promises);

    return data.filter(item => {
      return item.match;
    });
  }

  KeywordMatcher.getIntent = async function(string, expressions, globalCache) {
    const newStr = KeywordUtil.removeSpecial(string);
    console.log('vou testar a string: ' + newStr);

    const retruno = await evaluateExpressions(newStr, expressions, globalCache);

    return retruno;
  };

  KeywordMatcher.matchBase = async function(expressions, globalCache) {
    return new Promise(resolve => {
      const listResult = [];

      const listClassify = intents.filter(item => {
        return item.intentResult === 'naoentendi' || item.intentResult === 'naoentendi_grande';
      });

      listClassify.forEach(async (item, index) => {
        const match = await KeywordMatcher.getIntent(item.textRequest, expressions, globalCache);

        if (match && match.length > 0) {
          listResult.push(item.textRequest);
        }

        if (index == listClassify.length - 1) {
          resolve(listResult);
        }
      });

      return listResult;
    });
  };

  return KeywordMatcher;
};