import { RuleActionData, RuleEngineContext } from "@jss-rule-engine/core";
import { RuleEnginePersonalizationContext } from "../ruleEngineProvider";


export default async function (command: RuleActionData, ruleContext: RuleEngineContext)  {
    //parameters: renderingName, datasourcePath, placeholderName

    var placeholderName = command.attributes.get("placeholderName");
    var renderingName = command.attributes.get("renderingName");
    var datasourcePath = command.attributes.get("datasourcePath");

    
    if(!ruleContext.sessionContext)
        {
            throw new Error("Session context is missing");
        }

        console.log('Running add rendering command');

    let personalizationContext = ruleContext.sessionContext?.get<RuleEnginePersonalizationContext>("personalization");

    if (!personalizationContext) {
        personalizationContext = {
            placeholders: []
        };
    }

    var placeholder = personalizationContext.placeholders[placeholderName];

    var placeholder = placeholder ? placeholder : {
        name: placeholderName,
        renderings: []
    };

    personalizationContext.placeholders[placeholderName] = placeholder;

    ruleContext.sessionContext?.set("personalization", personalizationContext);

    var rendering = placeholder.renderings.find((x: any) => x.name == renderingName);

    if (rendering) {
        //update personalization for the rendering
        rendering.datasource = datasourcePath;
    } else {
        //add new personalization
        var newPersonalization = {
            name: renderingName,
            datasource: datasourcePath,
            add: true
        };

        placeholder.renderings.push(newPersonalization);
    }
}