@atomist/automation-client/lib/onEvent.js

Atomist API for software low-level client

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const GraphQL = require("./internal/graph/graphQL");
const metadataReading_1 = require("./internal/metadata/metadataReading");
const string_1 = require("./internal/util/string");
const scan_1 = require("./scan");
const constructionUtils_1 = require("./util/constructionUtils");
/**
 * Create a HandleEvent instance with the appropriate metadata wrapping
 * the given function
 * @param {OnEvent<T, P>} h
 * @param {Maker<P>} factory
 * @param {string} subscription
 * @param {string} name
 * @param {string} description
 * @param {string | string[]} tags
 * @returns {HandleEvent<T, P> & EventHandlerMetadata}
 */
function eventHandlerFrom(h, factory, subscription, name = h.name || `Event${string_1.generateHash(h.toString())}`, description = name, tags = []) {
    const handler = new FunctionWrappingEventHandler(name, description, h, factory, subscription, tags);
    scan_1.registerEvent(handler);
    return handler;
}
exports.eventHandlerFrom = eventHandlerFrom;
class FunctionWrappingEventHandler {
    constructor(name, description, h, parametersFactory, 
    // tslint:disable-next-line:variable-name
    _subscription, 
    // tslint:disable-next-line:variable-name
    _tags = []) {
        this.name = name;
        this.description = description;
        this.h = h;
        this.parametersFactory = parametersFactory;
        this._subscription = _subscription;
        this._tags = _tags;
        const newParamInstance = this.freshParametersInstance();
        const md = metadataReading_1.metadataFromInstance(newParamInstance);
        this.values = md.values;
        this.secrets = md.secrets;
        this.tags = string_1.toStringArray(_tags).map(t => ({ name: t, description: t }));
        this.subscription = GraphQL.inlineQuery(GraphQL.replaceOperationName(this._subscription, this.name));
        this.subscriptionName = GraphQL.operationName(this.subscription);
    }
    freshParametersInstance() {
        return constructionUtils_1.toFactory(this.parametersFactory)();
    }
    handle(e, ctx, params) {
        return this.h(e, ctx, params);
    }
}
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