/* eslint-disable no-unused-vars */
/**
 * @file stringParsingUtilities.js
 * @module stringParsingUtilities
 * @description Contains all system defined business rules for parsing strings,
 * with values of all kinds, and various parsing operations.
 * Excluding functions that use the loggers.
 * @requires {@link https://www.npmjs.com/package/@haystacks/constants|@haystacks/constants}
 * @requires {@link https://www.npmjs.com/package/path|path}
 * @author Seth Hollingsead
 * @date 2021/12/28
 * @copyright Copyright © 2022-… by Seth Hollingsead. All rights reserved
 */

// Internal imports

// External imports
import hayConst from '@haystacks/constants';
import path from 'path';

const {bas, gen, sys, wrd} = hayConst;
const baseFileName = path.basename(import.meta.url, path.extname(import.meta.url));
// framework.businessRules.rules.stringParsingUtilities.
const namespacePrefix = wrd.cframework + bas.cDot + sys.cbusinessRules + bas.cDot + wrd.crules + bas.cDot + baseFileName + bas.cDot;

/**
 * @function parseSystemRootPath
 * @description Parses the root path as returned by calling: path.resolve(__dirname);
 * This business rule looks for the "AppName" part of the path
 * and will parse that out to determine where on the hard drive this "appName" folder is installed at.
 * @NOTE: The "AppName" is derived from the configuration settings called "applicationName"
 * which should have been set by the system when it was loaded.
 * @param {string} inputData The root path as defined by calling path.resolve(__dirname);
 * @param {string} inputMetaData The name of the application.
 * @return {string} A string with the path up to the application folder,
 * where ever that is installed on the local system currently executing.
 * @author Seth Hollingsead
 * @date 2021/10/27
 * @NOTE Cannot use the loggers here, because dependency data will have never been loaded.
 */
async function parseSystemRootPath(inputData, inputMetaData) {
  // let functionName = parseSystemRootPath.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = '';
  if (inputData && inputMetaData) {
    let applicationName;
    let pathElements = '';
    if (inputMetaData.includes(bas.cForwardSlash)) {
      let applicationNameArray = inputMetaData.split(bas.cForwardSlash);
      // Assign the application name to the final name-element of the repo-namespace.
      applicationName = applicationNameArray[applicationNameArray.length - 1];
      // The above code handles the case that the framework is: @haystacks/sync
      // Then the path will pickup to the "sync" and everything up to the point as part of the return path.
    } else {
      applicationName = inputMetaData; // Rename it for readability.
    }
    if (inputData.includes(bas.cBackSlash) === true) {
      // console.log('caught the case of back slash');
      pathElements = inputData.split(bas.cBackSlash);
    } else if (inputData.includes(bas.cForwardSlash) === true) {
      // console.log('caught the case of forward slash');
      pathElements = inputData.split(bas.cForwardSlash);
    }    
    for (let i = 0; i < pathElements.length; i++) {
      // console.log(`BEGIN iteration i: ${i}`);
      let pathElement = pathElements[i];
      // console.log(`pathElement is: ${pathElement}`);
      if (i === 0) {
        // console.log('case: i === 0');
        returnData = pathElement;
      } else if (pathElement === applicationName) {
        // console.log(`case: pathElement === ${applicationName}`);
        returnData = returnData + bas.cBackSlash + pathElement + bas.cBackSlash; // `${returnData}\\${pathElement}\\`;
        break;
      } else {
        // console.log('case else');
        returnData = returnData + bas.cBackSlash + pathElement; // `${returnData}\\${pathElement}`;
      }
      // console.log('returnData is: ' + returnData);
    } // End for-loop: (let i = 0; i < pathElements.length; i++)
  } // End-if (inputData)
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

/**
 * @function stringToDataType
 * @description Converts a string to the appropriate data value.
 * So if it's a string value of "3.1415926535897932384626433832" Then it will get converted to a float of the same value.
 * If it's a string value of "false" then it will get converted to a boolean of the same value.
 * If it's a string value of "12" then it will get converted to an integer of the same value.
 * If it's a string value of "Happy Birthday" it will get returned the same as the input, no change, since it's just a string.
 * If it's an array of strings, or collection object, it will get returned as the same as the input, no change.
 * @param {string} inputData The string that should be converted to some value.
 * @param {string} inputMetaData Not used for this business rule.
 * @return {object|string|boolean|integer} Returns a value of whatever type the string should be converted to as appropriate.
 * @author Seth Hollingsead
 * @date 2021/11/10
 * @NOTE Cannot use the loggers here, because of a circular dependency.
 */
async function stringToDataType(inputData, inputMetaData) {
  // let functionName = stringToDataType.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = false;
  if (inputData) {
    let dataType = await determineObjectDataType(inputData, '');
    switch (dataType) {
      case wrd.cBoolean:
        returnData = await stringToBoolean(inputData, '');
        break;
      case wrd.cInteger:
        returnData = parseInt(inputData, '');
        break;
      case wrd.cFloat:
        returnData = parseFloat(inputData, '');
        break;
      case wrd.cString:
        returnData = inputData;
        break;
      default: // We don't know what kind of object this is, better just return it the way it is.
        returnData = inputData;
        break;
     } // End-switch (dataType)
  } // End-if (inputData)
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

/**
 * @function stringToBoolean
 * @description Converts a string to a boolean value.
 * @param {string} inputData A string that contains a truthy or falsy value and should be converted to a boolean value.
 * @param {string} inputMetaData Not used for this business rule.
 * @return {boolean} A Boolean value of either True or False according to the business rule conversion.
 * @author Seth Hollingsead
 * @date 2021/11/10
 * @NOTE We cannot pass in a 1 or 0 to this function and expect it to evaluate as a True or False because:
 * We have another function that is passing strings into the function, and also part of that check to look for data-types is a check to see if a string is a number.
 * If we cause this function to evaluate a 0 or 1 to a Boolean, then the integer function would never get a chance to evaluate.
 * @NOTE Cannot use the loggers here, because of a circular dependency.
 */
async function stringToBoolean(inputData, inputMetaData) {
  // let functionName = stringToBoolean.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = false;
  if (inputData) {
    if (typeof inputData === wrd.cboolean) {
      returnData = inputData;
    } else {
      switch (inputData.toLowerCase().trim()) {
        case gen.ctrue: case bas.ct: case bas.cy: case gen.cyes: case bas.con:
          returnData = true;
          break;
        case gen.cfalse: case bas.cf: case bas.cn: case bas.cno: case gen.coff:
          returnData = false;
          break;
        default:
          returnData = false;
          break;
      } // End-switch (inputData.toLowerCase().trim())
    }
 } // End-if (inputData)
 // console.log(`returnData is: ${JSON.stringify(returnData)}`);
 // console.log(`END ${namespacePrefix}${functionName} function`);
 return returnData;
}

/**
 * @function determineObjectDataType
 * @description Determines if the contents of a string are actually a Boolean, Integer, Float, String or something else.
 * @param {string} inputData A string that contains some value that we should figure out
 * what kind of data type that data is, Boolean, Integer, Float, String or something else.
 * @param {string} inputMetaDataNot Not used for this business rule.
 * @return {string} A string that indicates if the data type should be Boolean, Integer, Float, String or something else.
 * @author Seth Hollingsead
 * @date 2021/11/10
 * @NOTE Cannot use the loggers here, because of a circular dependency.
 */
async function determineObjectDataType(inputData, inputMetaData) {
  // let functionName = determineObjectDataType.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = false;
  if (inputData) {
    if (await isBoolean(inputData, '') === true) {
      returnData = wrd.cBoolean;
    } else if (await isInteger(inputData, '') === true) {
      returnData = wrd.cInteger;
    } else if (await isFloat(inputData, '') === true) {
      returnData = wrd.cFloat;
    } else if (await isString(inputData, '') === true) {
      returnData = wrd.cString;
    } else { // Otherwise we cannot figure out what the data type is.
      // No real way to tell the difference between Short, Long and Double.
      // And we don't really need to tell the difference between all these complicated data types.
      // At least not yet!
      returnData = wrd.cObject;
    }
  } // End-if (inputData)
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

/**
 * @function isBoolean
 * @description Determines if the input string is a boolean type of value,
 * "true", "True", "TRUE", "t", "T", "y", "Y", "yes", "Yes", "YES", "on", "On", "ON" or
 * "false", "False", "FALSE", "f", "F", "n", "N", "no", "No", "NO"
 * @param {string} inputData The string that should be checked if it is a Boolean style value or not, could be some form of "true" or "false".
 * @param {string} inputMetaData Not used for this business rule.
 * @return {boolean} A Boolean value of True or False to indicate if the input string is a Boolean or not.
 * @author Seth Hollingsead
 * @date 2021/11/10
 * @NOTE Cannot use the loggers here, because of a circular dependency.
 */
async function isBoolean(inputData, inputMetaData) {
  // let functionName = isBoolean.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = false;
  if (inputData) {
    if (typeof inputData === 'boolean') {
      returnData = true;
    } else {
      inputData = inputData.toLowerCase().trim();
      if (inputData === gen.ctrue || inputData === bas.ct || inputData === bas.cy || inputData === gen.cyes || inputData === bas.con ||
      inputData === gen.cfalse || inputData === bas.cf || inputData === bas.cn || inputData === bas.cno || inputData === gen.coff) {
        returnData = true;
      } else {
        returnData = false;
      }
    }
  } // End-if (inputData)
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

/**
 * @function isInteger
 * @description Determines if the input string is an integer type of value -9007299254740992 to 9007299254740992.
 * @param {string} inputData The string that should be checked if it is an integer style value or not.
 * @param {string} inputMetaData Not used for this business rule.
 * @return {boolean} A Boolean value of true or false to indicate if the input string is an integer or not.
 * @author Seth Hollingsead
 * @date 2021/11/10
 * @NOTE Cannot use the loggers here, because of a circular dependency.
 */
async function isInteger(inputData, inputMetaData) {
  // let functionName = isInteger.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = false;
  if (inputData) {
    if (!isNaN(inputData)) {
      if (inputData % 1 === 0) {
        // It's a whole number, aka: integer
        returnData = true;
      } else { // Else clause is redundant, but kept here for code completeness.
        // Might be a number, but not a whole number.
        returnData = false;
      }
    } else { // Else clause is redundant, but kept here for code completeness.
      // Possibly also console log here for debugging.
      returnData = false;
    }
  } // End-if (inputData)
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

/**
 * @function isFloat
 * @description Determines if the input string is a floating point type of value or not.
 * @param {string} inputData The string that should be checked if it is an integer style value or not.
 * @param {string} inputMetaData Not used for this business rule.
 * @return {boolean} A Boolean value of true or false to indicate if the input string is a floating point number or not.
 * @author Seth Hollingsead
 * @date 2021/11/10
 * @NOTE Cannot use the loggers here, because of a circular dependency.
 */
async function isFloat(inputData, inputMetaData) {
  // let functionName = isFloat.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = false;
  if (inputData) {
    if (!isNaN(inputData) && inputData.indexOf(bas.cDot) !== -1) {
      returnData = true;
    } else { // Else clause is redundant, but kept here for code completeness.
      // Possibly also console log here for debugging.
      returnData = false;
    }
  } // End-if (inputData)
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

/**
 * @function isString
 * @description Determines if the input string is a string or not, by process of elimination,
 * aka if it's not a Boolean, and not an Integer and not a Float then it must be a string.
 * @param {string} inputData The string that should be checked if it is a string and not a Boolean, Integer or Float.
 * @param {string} inputMetaData Not used for this business rule.
 * @return {boolean} A Boolean value of true or false to indicate if the input string is a string and
 * not a Boolean, Integer or Float; or not (meaning it would be one of those 3 data types, disguised as a string).
 * @author Seth Hollingsead
 * @date 2021/11/10
 * @NOTE Cannot use the loggers here, because of a circular dependency.
 */
async function isString(inputData, inputMetaData) {
  // let functionName = isString.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = false;
  if (inputData) {
    if (await isBoolean(inputData, '') === false && await isInteger(inputData, '') === false && await isFloat(inputData, '') === false &&
    (typeof inputData === wrd.cstring || inputData instanceof String)) {
      returnData = true; // If it's not a Boolean, and not an Integer, and not a Float, then it must be a string,
      // especially given the type of the variable is a string!
    } else { // Else clause is redundant, but kept here for code completeness.
      // Possibly also console log here for debugging.
      returnData = false;
    }
  } // End-if (inputData)
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

/**
 * @function replaceDoublePercentWithMessage
 * @description Parses the input string and replaces any instance of a double percentage sign
 * with the input Meta Data string.
 * @param {string} inputData The string that might contain the double percentage signs.
 * @param {string} inputMetaData The string that should replace the double percentage signs.
 * @return {string} The modified string with the message inserted.
 * @author Seth Hollingsead
 * @date 2021/12/24
 * @NOTE Cannot use the loggers here, because of a circular dependency.
 */
async function replaceDoublePercentWithMessage(inputData, inputMetaData) {
  // let functionName = replaceDoublePercentWithMessage.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData = '';
  if (inputData) {
    returnData = await utilitiesReplaceCharacterWithCharacter(inputData, [bas.cDoublePercent, inputMetaData]);
  }
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

/**
 * @function utilitiesReplaceCharacterWithCharacter
 * @description Replaces all of the specified character in the inputData with another specified character.
 * @param {string} inputData A string that may or may not contain the specified
 * characters that should be converted to another specified character.
 * @param {array<string,string>} inputMetaData An array of data that contains 2 additional string parameters:
 * inputMetaData[0] === character2Find - The character to be searched and replaced from the input string.
 * inputMetaData[1] === character2Replace - The character that should be used to replace
 * the character specified for replacement from the input data.
 * @return {string} The same as the input string but with specified characters converted to the other specified character.
 * @author Seth Hollingsead
 * @date 2021/12/28
 */
async function utilitiesReplaceCharacterWithCharacter(inputData, inputMetaData) {
  // let functionName = utilitiesReplaceCharacterWithCharacter.name;
  // console.log(`BEGIN ${namespacePrefix}${functionName} function`);
  // console.log(`inputData is: ${JSON.stringify(inputData)}`);
  // console.log(`inputMetaData is: ${JSON.stringify(inputMetaData)}`);
  let returnData;
  let character2Find = inputMetaData[0];
  let character2Replace = inputMetaData[1];
  if (!inputData && !character2Find && !character2Replace) {
    // console.log('Either inputData, character2Find or character2Replace are undefined');
    // console.log(`character2Find is: ${JSON.stringify(character2Find)}`);
    // console.log(`character2Replace is: ${JSON.stringify(character2Replace)}`);
    returnData = false;
  } else {
    // console.log(`character2Find is: ${JSON.stringify(character2Find)}`);
    // console.log(`character2Replace is: ${JSON.stringify(character2Replace)}`);
    if (Array.isArray(inputData) === true) {
      inputData = inputData[0];
    }
    returnData = inputData.replaceAll(character2Find, character2Replace);
  }
  // console.log(`returnData is: ${JSON.stringify(returnData)}`);
  // console.log(`END ${namespacePrefix}${functionName} function`);
  return returnData;
}

export default {
  parseSystemRootPath,
  stringToDataType,
  stringToBoolean,
  determineObjectDataType,
  isBoolean,
  isInteger,
  isFloat,
  isString,
  replaceDoublePercentWithMessage,
  utilitiesReplaceCharacterWithCharacter
};
