/** @module config */
import { ConfigParams } from 'pip-services3-commons-node';

import { ComponentConfig } from './ComponentConfig';

/**
 * Container configuration defined as a list of component configurations.
 * 
 * @see [[ComponentConfig]]
 */
export class ContainerConfig extends Array<ComponentConfig> {

    /**
     * Creates a new instance of container configuration.
     * 
     * @param components    (optional) a list of component configurations.
     */
    public constructor(components?: ComponentConfig[]) {
        super();

        if (components != null)
            super.push(...components);
    }

    /**
	 * Creates a new ContainerConfig object filled with key-value pairs from specified object.
     * The value is converted into ConfigParams object which is used to create the object.
	 * 
	 * @param value		an object with key-value pairs used to initialize a new ContainerConfig.
	 * @returns			a new ContainerConfig object.
     * 
     * @see [[fromConfig]]
     */
    public static fromValue(value: any): ContainerConfig {
        let config = ConfigParams.fromValue(value);
        return ContainerConfig.fromConfig(config);
    }

    /**
	 * Creates a new ContainerConfig object based on configuration parameters.
     * Each section in the configuration parameters is converted into a component configuration.
	 * 
	 * @param value		an object with key-value pairs used to initialize a new ContainerConfig.
	 * @returns			a new ContainerConfig object.
     */
    public static fromConfig(config: ConfigParams): ContainerConfig {
        let result = new ContainerConfig();
        if (config == null) return result;

        let names = config.getSectionNames();
        for (var i = 0; i < names.length; i++) {
            let componentConfig = config.getSection(names[i]);
            result.push(ComponentConfig.fromConfig(componentConfig));
        }

        return result;
    }
		
}