@xud6/cq-websocket/src/message/CQTag.js

A Node SDK for developing QQ chatbots based on WebSocket, which is depending on CoolQ and CQHTTP API plugin.

const deepEqual = require('deep-equal')

module.exports = class CQTag {
  /**
   * @param {string} type
   * @param {object} data
   */
  constructor (type, data = null) {
    this.data = data
    this._type = type
    this._modifier = null
  }

  get tagName () {
    return this._type
  }

  get modifier () {
    return this._modifier || new Proxy({}, {
      set: (t, prop, value) => {
        // lazy init
        this._modifier = {
          [prop]: value
        }
        return true
      }
    })
  }

  set modifier (val) {
    this._modifier = val
  }

  /**
   * @param {CQTag} another
   */
  equals (another) {
    if (!(another instanceof CQTag)) return false
    if (this._type !== another._type) return false
    return deepEqual(this.data, another.data, {
      strict: true
    })
  }

  toJSON () {
    const data = {}

    for (let k of Object.keys(this.data || {})) {
      if (this.data[k] !== undefined) {
        data[k] = String(this.data[k])
      }
    }

    for (let k of Object.keys(this._modifier || {})) {
      if (this._modifier[k] !== undefined) {
        data[k] = String(this._modifier[k])
      }
    }

    return {
      type: this._type,
      data: Object.keys(data).length > 0 ? data : null
    }
  }

  valueOf () {
    return this.toString()
  }

  toString () {
    let ret = `[CQ:${this._type}`

    for (let k of Object.keys(this.data || {})) {
      if (this.data[k] !== undefined) {
        ret += `,${k}=${this.data[k]}`
      }
    }

    for (let k of Object.keys(this._modifier || {})) {
      if (this._modifier[k] !== undefined) {
        ret += `,${k}=${this._modifier[k]}`
      }
    }

    ret += ']'
    return ret
  }

  /**
   * @abstract
   * Force data to cast into proper types
   */
  coerce () {
    return this
  }
}