/**
 * @author Martin Karkowski
 * @email m.karkowski@zema.de
 * @create date 2020-02-20 19:46:19
 * @modify date 2020-11-25 07:36:29
 * @desc [description]
 */

import * as handlebars from "handlebars";
import { IParsedLogic } from "../types/interface";
// declare const handlebars;
import { IParser } from "./default.parser";


export class SiemensParser implements IParser {


    mainLoop(context: IParsedLogic): string {
        const templates = {
            ifHeaderTemplate: "{{#if isFirst}}IF{{/if}}{{#unless isFirst}}ELSIF{{/unless}}{{> testPrePlaces}}{{> testPostPlaces}}{{> testGuard}} THEN",
            testPrePlaces: "{{#each inputs}} (\"{{placeTokenVar}}\"{{#if minTokens}} - \"{{minTokens}}\"{{/if}}) >= \"{{tokensToRemove}}\" AND{{/each}}",
            testPostPlaces: "{{#each testOutputs}} (\"{{placeTokenVar}}\" + \"{{tokensToAdd}}\") <= {{maxTokens}}\" AND {{/each}}",
            testGuard: " {{guard.external}}",
            removeTokens: "{{#each inputs}}\"{{placeTokenVar}}\" := \"{{placeTokenVar}}\" - \"{{tokensToRemove}}\";{{/each}}",
            addTokens: "{{#each outputs}}\"{{placeTokenVar}}\" := \"{{placeTokenVar}}\" + \"{{tokensToAdd}}\";{{/each}}"
        };

        for (const partial in templates) {
            handlebars.registerPartial(partial, templates[partial]);
        }

        const functions: { [index: string]: (context: any) => string } = {
            "plc.set": (context) => {
                console.log(context);
                return "";
            }
        };

        // handlebars.registerHelper(require('handlebars-helpers/lib/array.js'))

        handlebars.registerHelper("getFunctionCode", (context, name, paramers, dynParams) => {
            console.log("FUNC", context, name, paramers, dynParams);
        });

        const mainTemplate = "" +
            `
ORGANIZATION_BLOCK "Main"
TITLE = "Main Program Sweep (Cycle)"
{ S7_Optimized_Access := 'TRUE' }
VERSION : 0.1

BEGIN

{{#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 funcName}}

    // Execute the desired Function
    {{#getFunctionCode funcName params dynamicParameters}}{{/getFunctionCode}}
{{/if}}
{{#if isLast}}
END_IF;
{{/if}}
{{/each}}

END_ORGANIZATION_BLOCK
        `;

        // handlebars.registerHelper("joinList", helpers_1.joinListHelper);

        const render = handlebars.compile(mainTemplate);
        return "";
    }

    variableDefinition(context: IParsedLogic): string {
        const template = "" +
            `
DATA_BLOCK "VARS_DB"
{ S7_Optimized_Access := 'FALSE' }
VERSION : 0.1
NON_RETAIN
	VAR 
		{{#each variables}}
        {{name}} : {{type}};
		{{/each}}
	END_VAR
BEGIN
   	{{#some variables "v=>(v.hasValue)"}}
	{{#joinList this "\n" "v=>(v.hasValue)"}}
	{{name}} := {{value}};
	{{/joinList}}
	{{/some}}
END_DATA_BLOCK
        `;

        const render = handlebars.compile(template);
        return render(context);
    }

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