import fs from "fs-extra"
import path from "path/posix"
import Setting from "setting/main"

// 代码片段命令处理器
// base/__snippet__.json 基础信息
// 路径做为ID, 当前文件夹的信息

export default class SnippetCommand {
  storagePath: string = Setting.values("snippet.storagePath")

  constructor() {
    const handler = {
      get: function (target, prop, receiver) {
        if (!target["check"]()) {
          throw new Error(`代码片段路径存在问题`)
        }
        const value = target[prop]
        if (typeof value === "function") {
          return (...args) => Reflect.apply(value, receiver, args)
        }
        return value
      },
    }
    return new Proxy(this, handler)
  }

  async check() {
    const stat = await fs.statSync(this.storagePath)
    const inforFile = path.resolve(this.storagePath, "__snippet__.json")
    if (stat.isDirectory() && stat.size == 0) {
      await fs.writeJSON(inforFile, {})
      // 空文件夹, 初始化信息
      return true
    } else {
      const isExist = await fs.pathExists(inforFile)
      return isExist
    }
  }

  getTree() {
    return this.storagePath
  }
}