pragma-views2/lib/schema-helper.js

import {getValueOnPath} from "./../../../../baremetal/lib/objectpath-helper.js";

export class SchemaHelper {
    constructor(schema, model) {
        this.schema = schema;
        this.model = model;
    }

    dispose() {
        delete this.schema;
        delete this.model;
    }

    getAssociatedValue(value) {
        if (this.schema == undefined || this.schema.variables == undefined) {
            return value;
        }

        let result = value;
        const valueStr = new String(value);

        if (valueStr[0] == "@") {
            if (valueStr == "@today") {
                result = new Date().toISOString().split('T')[0];
            }
            else if (valueStr == "@null") {
                result = null;
            }
            else {
                const varName = valueStr.slice(1);
                result = getValueOnPath(this.schema.variables, varName);
            }
        }

        if (typeof result == "string" && result.indexOf("model.") != -1) {
            result = this.model == undefined ? null : getValueOnPath(this, result);
        }

        return result;
    }

    setAssociatedValueFor(model) {
        const keys = Object.keys(model);
        for (let key of keys) {
            model[key] = this.getAssociatedValue(model[key]);
        }
    }

}