lin-cms-test/lin/loader.js

The core library of Lin CMS, this package is just for test!

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tslib_1 = require("tslib");
const util_1 = require("./util");
const lodash_1 = require("lodash");
const koa_router_1 = tslib_1.__importDefault(require("koa-router"));
const consola_1 = tslib_1.__importDefault(require("consola"));
const path_1 = tslib_1.__importDefault(require("path"));
const sequelize_1 = require("sequelize");
const plugin_1 = require("./plugin");
const config_1 = require("./config");
const core_1 = require("./core");
/**
 * loader of lin
 * working for loading plugins
 */
class Loader {
    constructor(pluginPath, app) {
        this.plugins = {};
        util_1.assert(!!pluginPath, "pluginPath must not be empty");
        this.pluginPath = pluginPath;
        this.app = app;
        this.loadMainApi(app);
        this.loadPlugins();
    }
    /**
     * 加载插件
     */
    loadPlugins() {
        Object.keys(this.pluginPath).forEach(item => {
            // item is name of plugin
            if (lodash_1.get(this.pluginPath, `${item}.enable`)) {
                const path1 = lodash_1.get(this.pluginPath, `${item}.path`);
                const baseDir = process.cwd();
                let confPath = "";
                const scriptType = config_1.config.getItem("scriptType", "js");
                const prod = process.env.NODE_ENV === "production";
                if (prod || scriptType !== "ts") {
                    confPath = path_1.default.resolve(baseDir, path1, "config.js");
                }
                else {
                    confPath = path_1.default.resolve(baseDir, path1, "config.ts");
                }
                const appPath = path_1.default.resolve(baseDir, path1, "app");
                const incomingConf = lodash_1.get(this.pluginPath, item);
                this.loadConfig(item, confPath, incomingConf);
                this.loadPlugin(item, appPath);
            }
        });
    }
    /**
     * loadPlugin 加载单个插件
     */
    loadPlugin(name, path) {
        const mod = require(path);
        // const exports = get(mod, "default");
        const plugin = new plugin_1.Plugin(name);
        Object.keys(mod).forEach(key => {
            if (mod[key] instanceof koa_router_1.default) {
                plugin.addController(key, mod[key]);
            }
            else if (sequelize_1.Model.isPrototypeOf(mod[key])) {
                // 如果导出的模型继承自Model
                plugin.addModel(key, mod[key]);
            }
        });
        this.plugins[name] = plugin;
    }
    /**
     * loadConfig 加载插件配置
     */
    loadConfig(name, path, incomingConf) {
        const mod = require(path);
        // const conf = get(mod, "default");
        const newConf = {};
        lodash_1.set(newConf, name, Object.assign({}, mod, incomingConf));
        this.app.context.config.getConfigFromObj(newConf);
    }
    /**
     * 加载主应用中的所有路由
     */
    loadMainApi(app) {
        const mainRouter = new koa_router_1.default();
        this.mainRouter = mainRouter;
        // 默认api的文件夹
        let apiDir = config_1.config.getItem("apiDir", "app/api");
        apiDir = `${process.cwd()}/${apiDir}`;
        const files = util_1.getFiles(apiDir);
        for (const file of files) {
            const extention = file.substring(file.lastIndexOf("."), file.length);
            // 现在只考虑加载.js文件，后续考虑.ts文件
            if (extention === ".js") {
                const mod = require(file);
                // const exports = get(mod, "default");
                // 如果disableLoading为true，则不加载这个文件路由
                // tslint:disable-next-line:no-empty
                if (!mod[core_1.disableLoading]) {
                    Object.keys(mod).forEach(key => {
                        if (mod[key] instanceof koa_router_1.default) {
                            consola_1.default.info(`loading a router instance :${key} from file: ${file}`);
                            lodash_1.get(mod[key], "stack", []).forEach(ly => {
                                consola_1.default.info(`loading a route: ${lodash_1.get(ly, "path")}`);
                            });
                            mainRouter
                                .use(mod[key].routes())
                                .use(mod[key].allowedMethods());
                        }
                    });
                }
            }
        }
        app.use(mainRouter.routes()).use(mainRouter.allowedMethods());
    }
}
exports.Loader = Loader;