@koishijs/loader/lib/shared.mjs

Config Loader for Koishi

var __defProp = Object.defineProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
var __require = /* @__PURE__ */ ((x) => typeof require !== "undefined" ? require : typeof Proxy !== "undefined" ? new Proxy(x, {
  get: (a, b) => (typeof require !== "undefined" ? require : a)[b]
}) : x)(function(x) {
  if (typeof require !== "undefined") return require.apply(this, arguments);
  throw Error('Dynamic require of "' + x + '" is not supported');
});

// src/shared.ts
import { Context, interpolate, isNullable, Logger, Universal, valueMap, version } from "@koishijs/core";
import { constants, promises as fs } from "fs";
import * as yaml from "js-yaml";
import * as path from "path";
function unwrapExports(module) {
  return module?.default || module;
}
__name(unwrapExports, "unwrapExports");
function separate(source, isGroup = false) {
  const config = {}, meta = {};
  for (const [key, value] of Object.entries(source || {})) {
    if (key.startsWith("$")) {
      meta[key] = value;
    } else {
      config[key] = value;
    }
  }
  return [isGroup ? source : config, meta];
}
__name(separate, "separate");
var kUpdate = Symbol("update");
var group = {
  name: "group",
  reusable: true,
  apply(ctx, plugins) {
    ctx.scope[Loader.kRecord] ||= /* @__PURE__ */ Object.create(null);
    for (const name in plugins || {}) {
      if (name.startsWith("~") || name.startsWith("$")) continue;
      ctx.loader.reload(ctx, name, plugins[name]);
    }
    ctx.accept((neo) => {
      const old = ctx.scope.config;
      for (const key in { ...old, ...neo }) {
        if (key.startsWith("~") || key.startsWith("$")) continue;
        const fork = ctx.scope[Loader.kRecord][key];
        if (!fork) {
          ctx.loader.reload(ctx, key, neo[key]);
        } else if (!(key in neo)) {
          ctx.loader.unload(ctx, key);
        } else {
          ctx.loader.reload(ctx, key, neo[key] || {});
        }
      }
    }, { passive: true });
  }
};
function insertKey(object, temp, rest) {
  for (const key of rest) {
    temp[key] = object[key];
    delete object[key];
  }
  Object.assign(object, temp);
}
__name(insertKey, "insertKey");
function rename(object, old, neo, value) {
  const keys = Object.keys(object);
  const index = keys.findIndex((key) => key === old || key === "~" + old);
  const rest = index < 0 ? [] : keys.slice(index + 1);
  const temp = { [neo]: value };
  delete object[old];
  delete object["~" + old];
  insertKey(object, temp, rest);
}
__name(rename, "rename");
var writable = {
  ".json": "application/json",
  ".yaml": "application/yaml",
  ".yml": "application/yaml"
};
var Loader = class _Loader {
  static {
    __name(this, "Loader");
  }
  static kRecord = Symbol.for("koishi.loader.record");
  static exitCode = 51;
  static extensions = new Set(Object.keys(writable));
  // process
  baseDir = process.cwd();
  envData = process.env.KOISHI_SHARED ? JSON.parse(process.env.KOISHI_SHARED) : { startTime: Date.now() };
  params = {
    env: process.env
  };
  app;
  config;
  entry;
  suspend = false;
  writable = false;
  mime;
  filename;
  envFiles;
  names = /* @__PURE__ */ new Set();
  cache = /* @__PURE__ */ Object.create(null);
  prolog = [];
  store = /* @__PURE__ */ new WeakMap();
  _writeTask;
  _writeSlient = true;
  constructor() {
    Logger.targets.push({
      colors: 3,
      record: /* @__PURE__ */ __name((record) => {
        this.prolog.push(record);
        this.prolog = this.prolog.slice(-1e3);
      }, "record")
    });
  }
  async init(filename) {
    if (filename) {
      filename = path.resolve(this.baseDir, filename);
      const stats = await fs.stat(filename);
      if (stats.isFile()) {
        this.filename = filename;
        this.baseDir = path.dirname(filename);
        const extname2 = path.extname(filename);
        this.mime = writable[extname2];
        if (!_Loader.extensions.has(extname2)) {
          throw new Error(`extension "${extname2}" not supported`);
        }
      } else {
        this.baseDir = filename;
        await this.findConfig();
      }
    } else {
      await this.findConfig();
    }
    if (this.mime) {
      try {
        await fs.access(this.filename, constants.W_OK);
        this.writable = true;
      } catch {
      }
    }
    this.envFiles = [
      path.resolve(this.baseDir, ".env"),
      path.resolve(this.baseDir, ".env.local")
    ];
  }
  async findConfig() {
    const files = await fs.readdir(this.baseDir);
    for (const basename of ["koishi.config", "koishi"]) {
      for (const extname2 of _Loader.extensions) {
        if (files.includes(basename + extname2)) {
          this.mime = writable[extname2];
          this.filename = path.resolve(this.baseDir, basename + extname2);
          return;
        }
      }
    }
    throw new Error("config file not found");
  }
  migrateEntry(name, config) {
    if (name !== "group") return;
    const backup = { ...config };
    for (const key in backup) delete config[key];
    for (let key in backup) {
      if (key.startsWith("$")) {
        config[key] = backup[key];
        continue;
      }
      const [prefix] = key.split(":", 1);
      const name2 = prefix.replace(/^~/, "");
      const value = this.migrateEntry(name2, backup[key]) ?? backup[key];
      let ident = key.slice(prefix.length + 1);
      if (!ident || this.names.has(ident)) {
        ident = Math.random().toString(36).slice(2, 8);
        key = `${prefix}:${ident}`;
      }
      this.names.add(ident);
      config[key] = value;
    }
  }
  async migrate() {
    this.migrateEntry("group", this.config.plugins);
  }
  async readConfig(initial = false) {
    if (this.mime === "application/yaml") {
      this.config = yaml.load(await fs.readFile(this.filename, "utf8"));
    } else if (this.mime === "application/json") {
      this.config = JSON.parse(await fs.readFile(this.filename, "utf8"));
    } else {
      const module = __require(this.filename);
      this.config = module.default || module;
    }
    if (initial) await this.migrate();
    if (this.writable) await this.writeConfig(true);
    return new Context.Config(this.interpolate(this.config));
  }
  async _writeConfig(silent = false) {
    this.suspend = true;
    if (!this.writable) {
      throw new Error(`cannot overwrite readonly config`);
    }
    if (this.mime === "application/yaml") {
      await fs.writeFile(this.filename + ".tmp", yaml.dump(this.config));
    } else if (this.mime === "application/json") {
      await fs.writeFile(this.filename + ".tmp", JSON.stringify(this.config, null, 2));
    }
    await fs.rename(this.filename + ".tmp", this.filename);
    if (!silent) this.app.emit("config");
  }
  writeConfig(silent = false) {
    this._writeSlient &&= silent;
    if (this._writeTask) return this._writeTask;
    return this._writeTask = new Promise((resolve2, reject) => {
      setTimeout(() => {
        this._writeSlient = true;
        this._writeTask = void 0;
        this._writeConfig(silent).then(resolve2, reject);
      }, 0);
    });
  }
  interpolate(source) {
    if (typeof source === "string") {
      return interpolate(source, this.params, /\$\{\{(.+?)\}\}/g);
    } else if (!source || typeof source !== "object") {
      return source;
    } else if (Array.isArray(source)) {
      return source.map((item) => this.interpolate(item));
    } else {
      return valueMap(source, (item) => this.interpolate(item));
    }
  }
  async resolve(name) {
    const plugin = unwrapExports(await this.import(name));
    if (plugin) this.store.set(this.app.registry.resolve(plugin), name);
    return plugin;
  }
  keyFor(plugin) {
    const name = this.store.get(this.app.registry.resolve(plugin));
    if (name) return name.replace(/(koishi-|^@koishijs\/)plugin-/, "");
  }
  replace(oldKey, newKey) {
    oldKey = this.app.registry.resolve(oldKey);
    newKey = this.app.registry.resolve(newKey);
    const name = this.store.get(oldKey);
    if (!name) return;
    this.store.set(newKey, name);
    this.store.delete(oldKey);
  }
  async forkPlugin(name, config, parent) {
    const plugin = await this.resolve(name);
    if (!plugin) return;
    return parent.plugin(plugin, this.interpolate(config));
  }
  isTruthyLike(expr) {
    if (isNullable(expr)) return true;
    return !!this.interpolate(`\${{ ${expr} }}`);
  }
  logUpdate(type, parent, key) {
    this.app.logger("loader").info("%s plugin %c", type, key);
  }
  async reload(parent, key, source) {
    let fork = parent.scope[_Loader.kRecord][key];
    const name = key.split(":", 1)[0];
    const [config, meta] = separate(source, name === "group");
    if (fork) {
      if (!this.isTruthyLike(meta.$if)) {
        this.unload(parent, key);
        return;
      }
      fork[kUpdate] = true;
      fork.update(config);
    } else {
      if (!this.isTruthyLike(meta.$if)) return;
      this.logUpdate("apply", parent, key);
      const ctx = parent.extend();
      if (name === "group") {
        fork = ctx.plugin(group, config);
      } else {
        fork = await this.forkPlugin(name, config, ctx);
      }
      if (!fork) return;
      fork.key = key.slice(name.length + 1);
      parent.scope[_Loader.kRecord][key] = fork;
    }
    const filter = this.interpolate(meta.$filter);
    fork.parent.filter = (session) => {
      return parent.filter(session) && (isNullable(filter) || session.resolve(filter));
    };
    return fork;
  }
  unload(ctx, key) {
    const fork = ctx.scope[_Loader.kRecord][key];
    if (fork) fork.dispose();
  }
  getRefName(fork) {
    const record = fork.parent.scope[_Loader.kRecord];
    if (!record) return;
    for (const name in record) {
      if (record[name] !== fork) continue;
      return name;
    }
  }
  /** @deprecated */
  resolvePlugin(name) {
    return this.resolve(name);
  }
  /** @deprecated */
  reloadPlugin(ctx, key, source) {
    return this.reload(ctx, key, source);
  }
  /** @deprecated */
  unloadPlugin(ctx, key) {
    return this.unload(ctx, key);
  }
  paths(scope) {
    if (scope === scope.parent.scope) return [];
    if (scope.runtime === scope) {
      return [].concat(...scope.runtime.children.map((child) => this.paths(child)));
    }
    if (scope.key) return [scope.key];
    return this.paths(scope.parent.scope);
  }
  async createApp() {
    new Logger("app").info("%C", `Koishi/${version}`);
    const app = this.app = new Context(this.interpolate(this.config));
    app.provide("loader", this, true);
    app.provide("baseDir", this.baseDir, true);
    app.scope[_Loader.kRecord] = /* @__PURE__ */ Object.create(null);
    const fork = await this.reload(app, "group:entry", this.config.plugins);
    this.entry = fork.ctx;
    app.accept((config) => {
      app.koishi.config = config;
    });
    app.accept(["plugins"], (config) => {
      this.reload(app, "group:entry", config.plugins);
    }, { passive: true });
    app.on("dispose", () => {
      this.fullReload();
    });
    app.on("internal/fork", (fork2) => {
      if (fork2.uid || !fork2.parent.scope[_Loader.kRecord]) return;
      const key = Object.keys(fork2.parent.scope[_Loader.kRecord]).find((key2) => {
        return fork2.parent.scope[_Loader.kRecord][key2] === fork2;
      });
      if (!key) return;
      this.logUpdate("unload", fork2.parent, key);
      delete fork2.parent.scope[_Loader.kRecord][key];
      if (!app.registry.has(fork2.runtime.plugin)) return;
      rename(fork2.parent.scope.config, key, "~" + key, fork2.parent.scope.config[key]);
      this.writeConfig();
    });
    app.on("internal/update", (fork2) => {
      const key = this.getRefName(fork2);
      if (key) this.logUpdate("reload", fork2.parent, key);
    });
    app.on("internal/before-update", (fork2, config) => {
      if (fork2[kUpdate]) return delete fork2[kUpdate];
      const name = this.getRefName(fork2);
      if (!name) return;
      const { schema } = fork2.runtime;
      fork2.parent.scope.config[name] = {
        ...separate(fork2.parent.scope.config[name])[1],
        ...schema ? schema.simplify(config) : config
      };
      this.writeConfig();
    });
    if (this.envData.message) {
      const { sid, channelId, guildId, content } = this.envData.message;
      this.envData.message = null;
      const dispose = app.on("bot-status-updated", (bot) => {
        if (bot.sid !== sid || bot.status !== Universal.Status.ONLINE) return;
        dispose();
        bot.sendMessage(channelId, content, guildId);
      });
    }
    return app;
  }
};
var shared_default = Loader;
export {
  Loader,
  shared_default as default,
  unwrapExports
};
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