Miao-Yunzai/lib/renderer/loader.js

56 lines
1.6 KiB
JavaScript

import fs from 'node:fs'
import yaml from 'yaml'
import lodash from 'lodash'
import cfg from '../config/config.js'
import { Data } from '#miao'
import Renderer from './Renderer.js'
/** 全局变量 Renderer */
global.Renderer = Renderer
/**
* 加载渲染器
*/
class RendererLoader {
constructor() {
this.renderers = new Map()
this.dir = './renderers'
// TODO 渲染器热加载
this.watcher = {}
}
static async init() {
const render = new RendererLoader()
await render.load()
return render
}
async load() {
const subFolders = fs.readdirSync(this.dir, { withFileTypes: true }).filter((dirent) => dirent.isDirectory())
for (let subFolder of subFolders) {
let name = subFolder.name
try {
const rendererFn = await Data.importDefault(`${this.dir}/${name}/index.js`)
let configFile = `${this.dir}/${name}/config.yaml`
let rendererCfg = fs.existsSync(configFile) ? yaml.parse(fs.readFileSync(configFile, 'utf8')) : {}
let renderer = rendererFn(rendererCfg)
if (!renderer.id || !renderer.type || !renderer.render || !lodash.isFunction(renderer.render)) {
logger.warn('渲染后端 ' + (renderer.id || subFolder.name) + ' 不可用')
}
this.renderers.set(renderer.id, renderer)
logger.info(`加载渲染后端 ${renderer.id}`)
} catch (err) {
logger.error(`渲染后端 ${name} 加载失败`)
logger.error(err)
}
}
}
getRenderer(name = cfg.renderer?.name || 'puppeteer') {
// TODO 渲染器降级
return this.renderers.get(name)
}
}
export default await RendererLoader.init()