/**
 * @author Martin Karkowski
 * @email m.karkowski@zema.de
 * @create date 2020-02-20 19:46:19
 * @modify date 2020-03-09 16:55:12
 * @desc [description]
 */

import * as handlebars from "handlebars";
import { ILogicNetwork } from "../../ZISS-Network/type/ILogicNetwork";
import { IArcExpression } from '../../ZISS-Petri-Net/types/IArcAnnotation';
import { IJsonSchema } from '../../ZISS-TypeScript-Library/src/JSON';
import {
  deepClone,
  rsetattr
} from "../../ZISS-TypeScript-Library/src/Object-Methods";
import { replaceAll } from "../../ZISS-TypeScript-Library/src/String-Methods";
import { IParseableTransitionDescription, IParsedLogic } from "../types/interface";
import { AbstractParser } from "./default.parser";



export class JsParser extends AbstractParser {
  public variableDefinition(context: IParsedLogic): string {
    throw new Error("Method not implemented.");
  }

  /**
   * Function which will generate Parameters for the desired Function
   * @param task The Taskobject.
   */
  protected _generateParameters(task: IParseableTransitionDescription) {
    // Only Adapt a Copy
    let ret = deepClone(task.params);
    const pair = new Map<string, string>();

    // Adapt the Parameters.
    for (const updateDefinition of task.dynamicParams) {
      pair.set(updateDefinition.usedVariable, '"' + updateDefinition.usedVariable + '"');
      rsetattr(
        ret,
        updateDefinition.parameterPointer,
        updateDefinition.usedVariable
      );
    }

    let obj = JSON.stringify(ret, undefined, 4);

    // Create The Text which will be used for the Parameters
    for (const [key, value] of pair.entries()) {
      replaceAll(obj, value, key);
    }

    return obj;
  }

  // Array, containing all Elements which should be replaced.
  protected _replace: {
    regex: RegExp;
    replacer: string;
  }[] = [
      {
        regex: /(?<=[ \]\)])or(?=[ \[\(])/g,
        replacer: "||"
      },
      {
        regex: /(?<=[ \]\)])and(?=[ \[\(])/g,
        replacer: "&&"
      },
      {
        regex: /(?<=[ \]\)])sin(?=[ \[\(])/g,
        replacer: "Math.sin"
      },
      {
        regex: /(?<=[ \]\)])cos(?=[ \[\(])/g,
        replacer: "Math.cos"
      },
      {
        // (?<=[ \]\)])
        regex: /not(?=[ \[\(])/g,
        replacer: "!"
      },
      {
        regex: /(?<=[ \]\)])\|(?=[ \[\(])/g,
        replacer: "||"
      },
      {
        regex: /(?<=[ \]\)])\&(?=[ \[\(])/g,
        replacer: "&&"
      }
    ];

  /**
   * Function, which will be used to adapt the Path.
   * @param value
   */
  protected _adaptGuard(guard: string,
    simplifiedGuard: string,
    OriginalScope: {
      [index: string]: {
        source: string;
        schema: IJsonSchema;
      };
    },
    simplifiedScope: {
      [index: string]: {
        source: string;
        schema: IJsonSchema;
      };
    },
    mappingOriginalToSimplified: Map<string, string>,
    mappingSimplifiedToOriginal: Map<string, string>,
    mappingSimplifiedToAdapted: Map<string, string>,
    mappingAdaptedToSimplified: Map<string, string>,
    mappingVariableToRoot: Map<string, string>) {
    let adaptedGuard = simplifiedGuard;

    // Firstly get rid off the Elements (Chars, ot replace in the Equation)
    for (const data of this._replace) {
      adaptedGuard = adaptedGuard.replace(data.regex, data.replacer);
    }

    // Adapt the used Names
    for (const [simple, adapted] of mappingSimplifiedToAdapted) {
      adaptedGuard = replaceAll(adaptedGuard, simple, adapted);
    }

    return adaptedGuard;
  }

  /**
   * Function, which will be used to adapt a Variable Name.
   * @param value The original Variable Name
   */
  protected _adaptVariableName(
    variable: string,
    simplifiedName: string,
    path: string
  ) {
    return "vars['" + simplifiedName + "']";
  }

  /**
   * Function, which will be used to generate Function Code.
   * @param taskData
   */
  protected _getFunctionTriggerCode(_taskData: IParseableTransitionDescription) {

    const taskData = deepClone(_taskData);
    taskData.params = this._generateParameters(taskData);

    const updateTaskResult =
      `` +
      `
        _memoryInterface.set('{{id}}.function.output', {
            done: false,
            error: false,
            result: null,
            errorObject: null
        });


        _broker.performTask('{{functionName}}', {{{params}}}, '{{id}}', 'async', (error, parameters, result) => {
            _memoryInterface.set('{{id}}.function.output', {
                result: result,
                done: error ? false : true,
                error: error ? true : false,
                errorObject: error
            });
        });
      `;

    const render = handlebars.compile(updateTaskResult);
    return render(taskData);
  }

  protected _convertInput(definition: {
    // Amount of Tokens that will be consumed (Result must be greater the minTokens)
    consumed: IArcExpression;
    placeId: string;
    type:
    | "expression"
    | "inhibitor"
    | "multiexpression"
    | "test"
    | "value"
    | "variable";
    minTokens: number;
  }) {
    return {
      placeId: definition.placeId,
      minTokens: definition.minTokens,
      tokensToRemove: 1,
    }
  }

  protected _convertOutput(definition: {
    // Amount of Tokens that will be produced
    produced: IArcExpression;
    placeId: string;
    type:
    | "expression"
    | "inhibitor"
    | "multiexpression"
    | "test"
    | "value"
    | "variable";
    maxTokens: number;
  }): {
    // Amount of Tokens that will be produced
    placeId: string;
    maxTokens: number;
    tokensToAdd: number;
  } {
    return {
      placeId: definition.placeId,
      maxTokens: definition.maxTokens,
      tokensToAdd: 1,
    }
  }

  protected _templates: {
    [index: string]: string;
  } = {
      ifHeaderTemplate: `{{#unless isFirst}}else {{/unless}}if ({{> testPrePlaces}}{{> testPostPlaces}}{{> testGuard}}) {`,
      testPrePlaces: `{{#each inputs}} ((tokens['{{placeId}}']{{#if minTokens}} - {{minTokens}}{{/if}}) >= {{tokensToRemove}}) &&{{/each}}`,
      testPostPlaces: `{{#each testOutputs}} ((tokens['{{placeId}}'] + {{tokensToAdd}}) <= {{maxTokens}}) &&{{/each}}`,
      testGuard: ` {{{ externalGuard }}}`,
      removeTokens: `{{#each inputs}}tokens['{{placeId}}'] -= {{tokensToRemove}};{{/each}}`,
      addTokens: `{{#each outputs}}tokens['{{placeId}}'] += {{tokensToAdd}};{{/each}}`,
      mainTemplate:
        `` +
        `
import { ZISSLogger, DEFAULT_LOGGER } from '../modules/ZISS-Logger/src/Unique.Logger';
const _logger = ZISSLogger.logger.getLogger();
/** Add Console Logger. */
ZISSLogger.logger.addStream(DEFAULT_LOGGER);

_logger.info('started');

import 'reflect-metadata';

import * as BROKERFILEBASE from '../modules/ZISS-Broker/assembly/manual-assembly';
import * as BROKER from '../modules/ZISS-Broker/assembly/manual-assembly';
import * as MEMORYINTERFACE from '../modules/ZISS-Memory-Interface/assembly/manual-assembly';
import * as PUBSUB from '../modules/ZISS-Publish-And-Subscribe-System/assembly/manual-assembly';

import { Builder } from '../modules/ZISS-Assembly-Builder/src/Container-Builder.FileLoader';

import { ArgumentParser } from 'argparse';

const parser = new ArgumentParser({
    version: '1.0.0',
    addHelp: true,
    description: 'Main Starter For the Kernel Tool'
});

parser.addArgument(
    ['-l', '--level'],
    {
    help: 'The Loglevel. Defaults to Debug',
    defaultValue: 'info',
    choices: ['debug', 'error', 'fatal', 'info', 'trace', 'warn'],
    dest: 'level',
    }
);

const args = parser.parseArgs();

ZISSLogger.logger.level = args.level;

Builder.load();

Builder.on('loaded', () => {

    const _loader = Builder.instance.container.get<BROKERFILEBASE.FilebasedBroker>(BROKERFILEBASE.TYPES.BrokerFilebased);
    const _broker = Builder.instance.container.get<BROKER.Broker>(BROKER.TYPES.Broker);
    const _memoryInterface = Builder.instance.container.get<MEMORYINTERFACE.BaseStorage>(MEMORYINTERFACE.TYPES.Storage);
    const _pubSub = Builder.instance.container.get<PUBSUB.PubSubSystem>(PUBSUB.TYPES.PubSubSystem);


    const vars: {[index:string]:any} = {
        'true':true
    };
    
    const tokens: {[index:string]:number} = {
    {{#each places}}
        '{{id}}' : {{tokens.length}},
    {{/each}}
    };
    
    function mainLoop(){
        let checkTransitions = true;
    
        // Main Loop, which will iterate, until no action is left.
        while (checkTransitions) {
    
            checkTransitions = false;
    
            {{#each transitions}}
            // Test Transtion {{{label}}} 
            {{> ifHeaderTemplate}}   
            {{#if inputs}}
    
                // Removing Tokens from Pre-Places.
                {{> removeTokens}}
            {{/if}}
            {{#if outputs}}
    
                // Adding Tokens to the Post-Places.
                {{> addTokens}}
            {{/if}}
            {{#if functionName}}
    
                // Execute the desired Function
                {{#getFunctionCode this}}{{/getFunctionCode}}
            {{/if}}
    
    
                // Make shure the System Loops over again.
                checkTransitions = true;
    
            }
            {{/each}}
    
        }
    }
    
    // Define the Variables
    
    {{#each subscribedVariables}}
    Object.defineProperty(vars, '{{simplifiedName}}', {
        get: () => _memoryInterface.get('{{path}}'),
        set: (value) => _memoryInterface.set('{{path}}', value),
        enumerable: true
    });
    
    _pubSub.createSubscription('{{path}}', (data) => {
        mainLoop();
    });
    {{/each}}

    {{#each variables}}
    {{#if hasValue}}
    _memoryInterface.set('{{path}}', {{data}});
    {{/if}}
    {{/each}}

    const _func = async function () {
        try {
            await _loader.loadModules();
            // Perform autostart
            await _loader.performAutostartConfig();

            ZISSLogger.logger.level = args.level;
            ZISSLogger.logger.setLoglevel('delimiter', 'info');
            ZISSLogger.logger.setLoglevel('logic.functions', 'info');

            // Start the Task
            mainLoop();
        } catch (e) {
            _logger.error(e, 'Error during Loading the Content');
        }
    };

    _func();

        
});


`
    };

  /**
   * Function, which will generate the MainLoop.
   * @param network
   */
  mainLoop(network: ILogicNetwork): string {
    // Reference to the Own Object.
    const _this = this;

    handlebars.registerHelper("getFunctionCode", (taskData) =>
      _this._getFunctionTriggerCode(taskData)
    );

    this.linkTemplates();

    const render = handlebars.compile(this._templates.mainTemplate);

    return render(this.getParseableLogic(network))
  }

  instanceCreation(context: IParsedLogic): string {
    throw new Error("Method not implemented.");
  }
}