@ark7/router/decorators.js

Ark7 Router layer framework.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Middleware = exports.Config = void 0;
require("reflect-metadata");
const _ = require("underscore");
const controller_1 = require("./controller");
const declarations_1 = require("./declarations");
const global_config_1 = require("./global-config");
/**
 * A decorator to config a router class.
 */
function Config(options) {
    return (cls) => {
        const meta = declarations_1.A7ControllerMetadata.getMetadata(cls);
        meta.extendOptions(options);
        meta.defineMetadata(cls);
    };
}
exports.Config = Config;
function Middleware(middlewares) {
    middlewares = _.chain([middlewares])
        .flatten()
        .map(global_config_1.a7RouterConfig.middlewareMapper)
        .value();
    return (target, propertyKey, descriptor) => {
        if (propertyKey == null) {
            buildConstructorMiddleware(target, middlewares);
        }
        else {
            return buildPropertyMiddleware(target, propertyKey, middlewares, descriptor);
        }
    };
}
exports.Middleware = Middleware;
function buildConstructorMiddleware(cls, middlewares) {
    declarations_1.A7ControllerMetadata.getMetadata(cls)
        .clone()
        .pushMiddlewaresInFront(middlewares)
        .defineMetadata(cls);
}
function getDescription(handler) {
    return {
        get: function () {
            return handler.composedMiddleware;
        },
        set: function (fn) {
            if (fn.prototype instanceof controller_1.A7Controller) {
                handler.cls = fn;
                handler.type = declarations_1.A7ControllerSubsidiaryType.SUB_CONTROLLER;
            }
            else {
                handler.pushMiddlewaresBack(_.flatten([fn]));
                handler.type = declarations_1.A7ControllerSubsidiaryType.HANDLER;
            }
        },
        enumerable: false,
        configurable: true,
        _a7: true,
    };
}
function buildPropertyMiddleware(target, propertyKey, middlewares, descriptor) {
    const cls = target.constructor;
    const meta = declarations_1.A7ControllerMetadata.getMetadata(cls).clone();
    const subsidiary = meta.getOrCreateSubsidiary(propertyKey);
    subsidiary.pushMiddlewaresInFront(middlewares);
    if (descriptor != null && !descriptor._a7) {
        subsidiary.pushMiddlewaresBack([descriptor.value]);
    }
    meta.defineMetadata(cls);
    if (!descriptor?._a7) {
        return getDescription(subsidiary);
    }
}

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