# Source: commandsBlob/commands/constant.js

    /**
    * @file constant.js
    * @module constant
    * @description Contains all of the constant system commands.
    * @requires module:ruleBroker
    * @requires module:configurator
    * @requires module:loggers
    * @requires module:queue
    * @requires {@link https://www.npmjs.com/package/@haystacks/constants|@haystacks/constants}
    * @requires {@link https://www.npmjs.com/package/path|path}
    * @author Seth Hollingsead
    * @date 2022/02/04
    * @copyright Copyright © 2022-… by Seth Hollingsead. All rights reserved
    */

    // Internal imports
    import ruleBroker from '../../brokers/ruleBroker.js';
    import configurator from '../../executrix/configurator.js';
    import loggers from '../../executrix/loggers.js';
    import queue from '../../structures/queue.js';
    // External imports
    import hayConst from '@haystacks/constants';
    import path from 'path';

    const {bas, biz, cmd, cfg, gen, msg, sys, wrd} = hayConst;
    const baseFileName = path.basename(import.meta.url, path.extname(import.meta.url));
    // commandsBlob.commands.constant.
    const namespacePrefix = sys.ccommandsBlob + bas.cDot + wrd.ccommands + bas.cDot + baseFileName + bas.cDot;

    /**
     * @function constantsGenerator
     * @description Requests a string input the user would like to have converted nto a constant,
     * while determining the most optimized way to define the new constant based on existing constants.
     * Also checks to see if that new constant is already defined in the constants system.
     * @param {string} inputData Parameterized constant to generate for.
     * @param {string} inputMetaData Not used for this business rule.
     * @return {array<boolean,string|integer|boolean|object|array>} An array with a boolean True or False value to
     * indicate if the application should exit or not exit, followed by the command output.
     * @author Seth Hollingsead
     * @date 2022/03/30
     */
    async function constantsGenerator(inputData, inputMetaData) {
       let functionName = constantsGenerator.name;
       await loggers.consoleLog(namespacePrefix + functionName, msg.cBEGIN_Function);
       await loggers.consoleLog(namespacePrefix + functionName, msg.cinputDataIs + JSON.stringify(inputData));
       await loggers.consoleLog(namespacePrefix + functionName, msg.cinputMetaDataIs + inputMetaData);
       let returnData = [true, []];
       let errorMessage = '';
       if (await configurator.getConfigurationSetting(wrd.csystem, cfg.cenableConstantsValidation) === true) {
         let validEntry = false;
         let userDefinedConstant = '';
         let constantsFulfillmentSystemRule = [biz.cconstantsFulfillmentSystem];
         let recombineArrayInputRule = [biz.crecombineStringArrayWithSpaces];

         if (inputData.length === 0) {
           while (validEntry === false) {
             console.log(msg.cConstantPrompt1);
             console.log(msg.cConstantPrompt2);
             console.log(msg.cConstantPrompt3);
             userDefinedConstant = await ruleBroker.processRules([bas.cGreaterThan, ''], [biz.cprompt]);
             validEntry = await ruleBroker.processRules([userDefinedConstant, ''], [biz.cisConstantValid]);
             if (validEntry === false) {
               // INVALID INPUT: Please enter a valid constant value that contains more than 4 characters.
               console.log(msg.cconstantsGeneratorMessage1);
             } // End-if (validEntry === false)
           } // End-while (validEntry === false)
         } else if (inputData.length === 2) {
           userDefinedConstant = inputData[1];
         } else {
           // We need to recombine all of the array elements after the 0-th element into a single string with spaces in between.
           userDefinedConstant = await ruleBroker.processRules([inputData, ''], [recombineArrayInputRule]);
         }
         // userDefinedConstant is:
         await loggers.consoleLog(namespacePrefix + functionName, msg.cuserDefinedConstantIs + userDefinedConstant);

         // First lets check if the constant is already defined, so we can warn the user.
         // NOTE: It could be that the developer is just looking to optimize the existing constant,
         // but if not, a warning to the user would be a good idea!
         let doesConstantExist = await ruleBroker.processRules([userDefinedConstant, ''], [biz.cdoesConstantExist]);
         if (doesConstantExist === true) {
           let constantType = await ruleBroker.processRules([userDefinedConstant, ''], [biz.cgetConstantType]);
           // WARNING: The constant has already been defined in the following library(ies):
           console.log(msg.cconstantsGeneratorMessage2 + constantType);
         } // End-if (doesConstantExist === true)
         userDefinedConstant = userDefinedConstant.trim();
         let wordCount = await ruleBroker.processRules([userDefinedConstant, ''], [biz.cgetWordCountInString]);
         // wordCount is:
         await loggers.consoleLog(namespacePrefix + functionName, msg.cwordCountIs + wordCount);
         // Now begin the fulfillment algorithm.
         if (wordCount > 1) {
           let wordsArray = await ruleBroker.processRules([userDefinedConstant, ''], [biz.cgetWordsArrayFromString]);
           for (const element of wordsArray) {
             let optimizedWordConstantDefinition = await ruleBroker.processRules([element.trim(), element.trim()], [constantsFulfillmentSystemRule]);
             // Optimized constant definition for word:
             console.log(msg.cOptimizedConstantDefinitionForWord + bas.cc + element + bas.cSpace + bas.cEqual + bas.cSpace +
              optimizedWordConstantDefinition);
              returnData[1].push(optimizedWordConstantDefinition);
           } // End-for (const element of wordsArray)
         } else { // There is only a single word to process.
          returnData[1] = await ruleBroker.processRules([userDefinedConstant, userDefinedConstant], [constantsFulfillmentSystemRule])
          // output a proper line of code:
          // export const csomething = wrd.csome + wrd.cthing; // something
          console.log(wrd.cexport + bas.cSpace + gen.cconst + bas.cSpace + bas.cc + userDefinedConstant + bas.cSpace + bas.cEqual + bas.cSpace +
            returnData[1] + bas.cSemiColon + bas.cSpace + bas.cDoubleForwardSlash + bas.cSpace + userDefinedConstant);
         }
       } else {
         // The enableConstantsValidation flag is disabled. Enable this flag in the configuration settings to activate this command.
         errorMessage = msg.cconstantsGeneratorMessage3 + msg.cconstantsGeneratorMessage4;
         console.log(errorMessage);
         returnData[1] = errorMessage;
       }
       await loggers.consoleLog(namespacePrefix + functionName, msg.creturnDataIs + JSON.stringify(returnData));
       await loggers.consoleLog(namespacePrefix + functionName, msg.cEND_Function);
       return returnData;
    }

    /**
     * @function constantsGeneratorList
     * @description Calls the constantsGenerator command to iterate over a list of constants and generate many constants sequentially.
     * @NOTE This function will also walk the list and determine if there are any common strings
     * internal to the list that could be defined as new constants to help with the optimization process.
     * @NOTE Testing string: constGenL somethingXML,whatever that is,A basic NodeJS template App,that can easily
     * @param {string} inputData Parameterized coma delimited list of constants to be auto-generated
     * @param {string} inputMetaData Not used for this business rule.
     * @return {array<boolean,string|integer|boolean|object|array>} An array with a boolean True or False value to
     * indicate if the application should exit or not exit, followed by the command output.
     * @author Seth Hollingsead
     * @date 2022/03/30
     */
    async function constantsGeneratorList(inputData, inputMetaData) {
       let functionName = constantsGeneratorList.name;
       await loggers.consoleLog(namespacePrefix + functionName, msg.cBEGIN_Function);
       await loggers.consoleLog(namespacePrefix + functionName, msg.cinputDataIs + JSON.stringify(inputData));
       await loggers.consoleLog(namespacePrefix + functionName, msg.cinputMetaDataIs + inputMetaData);
       let returnData = [true, {}];
       let errorMessage = '';
       if (await configurator.getConfigurationSetting(wrd.csystem, cfg.cenableConstantsValidation) === true) {
         let validEntry = false;
         let userDefinedConstantList = '';
         if (inputData.length === 0) {
           while (validEntry === false) {
             console.log(msg.cConstantsListPrompt1);
             console.log(msg.cConstantsListPrompt2);
             console.log(msg.cConstantsListPrompt3);
             userDefinedConstantList = await ruleBroker.processRules([bas.cGreaterThan, ''], [biz.cprompt]);
             validEntry = await ruleBroker.processRules([userDefinedConstantList, ''], [biz.cisConstantValid]);
             if (validEntry === false) {
               // INVALID INPUT: Please enter a valid constant list.
               console.log(msg.cconstantsGeneratorListMessage1);
             }
           } // End-while (validEntry === false)
         } else if (inputData.length === 2) {
           userDefinedConstantList = inputData[1];
         } else {
           // Combine all of the input parameters back into a single string then we will parse it for coma's into an array.
           // The array elements will then be used to enqueue the command constantsGenerator.
           userDefinedConstantList = await ruleBroker.processRules([inputData, ''], [biz.crecombineStringArrayWithSpaces]);
         }
         // userDefinedConstantList is:
         await loggers.consoleLog(namespacePrefix + functionName, msg.cuserDefinedConstantListIs + userDefinedConstantList);
         if (userDefinedConstantList.includes(bas.cComa) === true) {
           // userDefinedConstantList contains comas
           await loggers.consoleLog(namespacePrefix + functionName, msg.cuserDefinedConstantListContainsComas);
           let userDefinedConstantsListArray = userDefinedConstantList.split(bas.cComa);
           // userDefinedConstantsListArray is:
           await loggers.consoleLog(namespacePrefix + functionName, msg.cuserDefinedConstantsListArrayIs + JSON.stringify(userDefinedConstantsListArray));
           if (userDefinedConstantsListArray.length > 1) {
             for (const element of userDefinedConstantsListArray) {
              await queue.enqueue(sys.cCommandQueue, cmd.cconstantsGenerator + bas.cSpace + element.trim());
             } // End-for (const element of userDefinedConstantsListArray)
             returnData[1] = true;
           } else if (userDefinedConstantsListArray.length === 1) {
             // Just enqueue the constants Generator command with the input directly.
             await queue.enqueue(sys.cCommandQueue, cmd.cconstantsGenerator + bas.cSpace + userDefinedConstantsListArray[0].trim());
             returnData[1] = true;
           }
         } else {
           // userDefinedConstantsList DOES NOT contain comas
           await loggers.consoleLog(namespacePrefix + functionName, msg.cuserDefinedConstantsListDoesNotContainComas);
           await queue.enqueue(sys.cCommandQueue, cmd.cconstantsGenerator + bas.cSpace + userDefinedConstantList.trim());
           returnData[1] = true;
         }
       } else {
         // The enableConstantsValidation flag is disabled. Enable this flag in the configuration settings to activate this command.
         errorMessage = msg.cconstantsGeneratorMessage3 + msg.cconstantsGeneratorMessage4;
         console.log(errorMessage);
         returnData[1] = errorMessage;
       }
       await loggers.consoleLog(namespacePrefix + functionName, msg.creturnDataIs + JSON.stringify(returnData));
       await loggers.consoleLog(namespacePrefix + functionName, msg.cEND_Function);
       return returnData;
    }

    /**
     * @function constantsPatternRecognizer
     * @description Walks through a list of constants looking for patterns internal to the strings.
     * @param {string} inputData Parameterized coma delimited list of constants to be
     * passed through pattern recognition to find common strings among them.
     * @param {string} inputMetaData Not used for this command.
     * @return {array<boolean,string|integer|boolean|object|array>} An array with a boolean True or False value to
     * indicate if the application should exit or not exit, followed by the command output.
     * @author Seth Hollingsead
     * @date 2022/03/31
     */
    async function constantsPatternRecognizer(inputData, inputMetaData) {
      let functionName = constantsPatternRecognizer.name;
      await loggers.consoleLog(namespacePrefix + functionName, msg.cBEGIN_Function);
      await loggers.consoleLog(namespacePrefix + functionName, msg.cinputDataIs + JSON.stringify(inputData));
      await loggers.consoleLog(namespacePrefix + functionName, msg.cinputMetaDataIs + inputMetaData);
      let returnData = [true, {}];
      let errorMessage = '';
      if (await configurator.getConfigurationSetting(wrd.csystem, cfg.cenableConstantsValidation) === true) {
        let validEntry = false;
        let userDefinedConstantList = '';
        let wordsArray = [];
        let commonPatternsArray = [];
        if (inputData.length === 0) {
          while (validEntry === false) {
            console.log(msg.cConstantsListPatternSearchPrompt1);
            console.log(msg.cConstantsListPatternSearchPrompt2);
            console.log(msg.cConstantsListPatternSearchPrompt3);
            userDefinedConstantList = await ruleBroker.processRules([bas.cGreaterThan, ''], [biz.cprompt]);
            validEntry = await ruleBroker.processRules([userDefinedConstantList, ''], [biz.cisConstantValid]);
            if (validEntry === false) {
              // INVALID INPUT: Please enter a valid constant list.
              console.log(msg.cconstantsGeneratorListMessage1);
            } // End-if (validEntry === false)
          } // End-while (validEntry === false)
        } else if (inputData.length === 2) {
          userDefinedConstantList = inputData[1];
        } else {
          // Combine all of the input parameters back into a single string then we will parse it for coma's into an array.
          // The array elements will then be used to enqueue the command constantsGenerator.
          userDefinedConstantList = await ruleBroker.processRules([inputData, ''], [biz.crecombineStringArrayWithSpaces]);
        }
        // userDefinedConstantList is:
        await loggers.consoleLog(namespacePrefix + functionName, msg.cuserDefinedConstantListIs + userDefinedConstantList);
        if (userDefinedConstantList.includes(bas.cComa) === true) {
          wordsArray = userDefinedConstantList.split(bas.cComa);
        } else {
          // userDefinedConstantList DOES NOT contain comas
          await loggers.consoleLog(namespacePrefix + functionName, msg.cuserDefinedConstantsListDoesNotContainComas);
          // Check and see if there is another delimiter we can use to break up the string into an array,
          // such as a space character, Maybe the user entered a sentence and would like all the words of the sentence to be optimized.
          wordsArray = await ruleBroker.processRules([userDefinedConstantList, ''], [biz.cgetWordsArrayFromString]);
        }
        // wordsArray is:
        await loggers.consoleLog(namespacePrefix + functionName, msg.cwordsArrayIs + JSON.stringify(wordsArray));
        commonPatternsArray = await ruleBroker.processRules([wordsArray, ''], [biz.csearchForPatternsInStringArray]);
        // commonPatternsArray is:
        await loggers.consoleLog(namespacePrefix + functionName, msg.ccommonPatternsArrayIs + JSON.stringify(commonPatternsArray));
        // This next call will compare the identified string patterns with existing constants, and highlight which ones are not yet implemented.
        let newConstantsList = await ruleBroker.processRules([commonPatternsArray, ''], [biz.cvalidatePatternsThatNeedImplementation]);
        let constantsPatternGenerationSetting = await configurator.getConfigurationSetting(wrd.csystem, cfg.cenableConstantsPatternGeneration);
        if (constantsPatternGenerationSetting === true) {
          await queue.enqueue(sys.cCommandQueue, cmd.cconstantsGeneratorList + bas.cSpace + newConstantsList);
          returnData[1] = newConstantsList;
        } // End-if (constantsPatternGenerationSetting === true)
      } else {
        // The enableConstantsValidation flag is disabled. Enable this flag in the configuration settings to activate this command.
        errorMessage = msg.cconstantsGeneratorMessage3 + msg.cconstantsGeneratorMessage4;
        console.log(errorMessage);
        returnData[1] = errorMessage;
      }
      await loggers.consoleLog(namespacePrefix + functionName, msg.creturnDataIs + JSON.stringify(returnData));
      await loggers.consoleLog(namespacePrefix + functionName, msg.cEND_Function);
      return returnData;
    }

    /**
     * @function evaluateConstant
     * @description Resolves a constant and prints the output of the constant value.
     * @param {array<string>} inputData A string array that contains the name of the constant that should be resolved and printed.
     * inputData[0] = evaluateConstant
     * inputData[1] = constantToBeEvaluated - The constant that should be resolved and printed to the output if it exists.
     * @param {string} inputMetaData Not used for this command.
     * @return {array<boolean,string|integer|boolean|object|array>} An array with a boolean True or False value to
     * indicate if the application should exit or not exit, followed by the command output.
     * @author Seth Hollingsead
     * @date 2022/05/11
     */
    async function evaluateConstant(inputData, inputMetaData) {
      let functionName = evaluateConstant.name;
      await loggers.consoleLog(namespacePrefix + functionName, msg.cBEGIN_Function);
      await loggers.consoleLog(namespacePrefix + functionName, msg.cinputDataIs + JSON.stringify(inputData));
      await loggers.consoleLog(namespacePrefix + functionName, msg.cinputMetaDataIs + inputMetaData);
      let returnData = [true, {}];
      let errorMessage = '';
      if (inputData && inputData.length > 1) {
        if (await ruleBroker.processRules([inputData[1], ''], [biz.cdoesConstantExist]) === true) {
          returnData[1] = await ruleBroker.processRules([inputData[1], ''], [biz.cgetConstantActualValue]);
          console.log(inputData[1] + bas.cSpace + bas.cEqual + bas.cSpace + returnData[1]);
        } else {
          // The constant does not exist:
          errorMessage = msg.cTheConstantDoesNotExist + inputData[1];
          console.log(errorMessage);
          returnData[1] = errorMessage;
        }
      } else {
        // ERROR: No constant value entered, please enter a constant name to evaluate.
        errorMessage = msg.cevaluateConstantMessage01;
        console.log(errorMessage);
        returnData[1] = errorMessage;
      }
      await loggers.consoleLog(namespacePrefix + functionName, msg.creturnDataIs + JSON.stringify(returnData));
      await loggers.consoleLog(namespacePrefix + functionName, msg.cEND_Function);
      return returnData;
    }

    export default {
      constantsGenerator,
      constantsGeneratorList,
      constantsPatternRecognizer,
      evaluateConstant
    };