/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the Source EULA. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
import { NoteBookEnvironmentVariablePrefix } from '../interfaces';

export class Model {
	private propValueObject: { [s: string]: string | undefined } = {};

	public setPropertyValue(property: string, value: string | number | boolean | undefined): void {
		if (typeof value === 'boolean') {
			this.propValueObject[property] = value ? 'true' : 'false';
		} else if (typeof value === 'number') {
			this.propValueObject[property] = value.toString();
		} else {
			this.propValueObject[property] = value;
		}
	}

	public getIntegerValue(propName: string, defaultValue: number = 0): number {
		const value = this.propValueObject[propName];
		return value === undefined ? defaultValue : Number.parseInt(value);
	}

	public getStringValue(propName: string, defaultValue?: string): string | undefined {
		const value = this.propValueObject[propName];
		return value === undefined ? defaultValue : value;
	}

	public getBooleanValue(propName: string, defaultValue: boolean = false): boolean {
		const value = this.propValueObject[propName];
		return value === undefined ? defaultValue : value === 'true';
	}

	public setEnvironmentVariables(): void {
		Object.keys(this.propValueObject).filter(propertyName => propertyName.startsWith(NoteBookEnvironmentVariablePrefix)).forEach(propertyName => {
			const value = this.getStringValue(propertyName);
			if (value !== undefined && value !== '') {
				process.env[propertyName] = value;
			}
			process.env[propertyName] = value === undefined ? '' : value;
		});
	}
}