[FEAT]get post sayable from server posts

[hcfw007]

In wechaty post mixin:

wechaty/src/user-modules/post.ts

Lines 304 to 313 in 8bec2d5

	if (PUPPET.payloads.isPostServer(this.payload)) {
	for (const messageId of this.payload.sayableList) {
	const message = await this.wechaty.Message.find({ id: messageId })
	if (message) {
	const sayable = await message.toSayable()
	if (sayable) {
	yield sayable
	}
	}
	}

We get server post sayable by loading messages from the sayable id. This works for mixed messages (messages containing many sayables), however for moment and moment replies, it doesn't make no scence to convert them to messages.

So I say we create puppet method to get sayables with id, it should be somehting like this:

wechaty-puppet

    // get a sayable from server post (which comes with Id)
    abstract postPayloadSayable (postId: string, sayableId: string): Promise<SayablePayload>

wechaty:

  async * [Symbol.asyncIterator] (): AsyncIterableIterator<Sayable> {
    log.verbose('Post', '[Symbol.asyncIterator]()')

    const payloadToSayable = payloadToSayableWechaty(this.wechaty)

    if (PUPPET.payloads.isPostServer(this.payload)) {
      for (const sayableId of this.payload.sayableList) {
        const sayable = await this.getSayableWithId(sayableId)

        if (sayable) {
          yield sayable
        }
      }

    } else {  // client
      for (const sayablePayload of this.payload.sayableList) {
        const sayable = await payloadToSayable(sayablePayload)
        if (sayable) {
          yield sayable
        }
      }

    }
  }

  async getSayableWithIndex (sayableIndex: number) {
    log.verbose('Post', 'getSayableWithIndex(%s)', sayableIndex)

    const payloadToSayable = payloadToSayableWechaty(this.wechaty)

    if (PUPPET.payloads.isPostServer(this.payload)) {
      const sayablePayload = await this.wechaty.puppet.postPayloadSayable(this.id!, this.payload.sayableList[sayableIndex]!)
      const sayable = await payloadToSayable(sayablePayload)
      return sayable
    } else {
      const sayablePayload = this.payload.sayableList[sayableIndex]
      if (sayablePayload) {
        const sayable = await payloadToSayable(sayablePayload)
        return sayable
      } else {
        throw new Error(`post has no sayable with index ${sayableIndex}`)
      }
    }
  }

  async getSayableWithId (id: string) {
    log.verbose('Post', 'getSayableWithId(%s)', id)

    if (PUPPET.payloads.isPostServer(this.payload)) {
      const payloadToSayable = payloadToSayableWechaty(this.wechaty)
      const sayablePayload = await this.wechaty.puppet.postPayloadSayable(this.id!, id)
      const sayable = await payloadToSayable(sayablePayload)
      return sayable
    } else {
      throw new Error('client post sayable has no Id')
    }
  }

[hcfw007]

After discussion in Wechaty Community Meeting (brief here)
Keys:

1. Any sayable in Moment can be parsed as a message.
2. The message's talker and listener should be bot self.
3. As we mentioned in quote message issue, all messages should be able to be parsed as Post in puppet implementation. So you should be able to call postRawPayload with a valid message id and get a valid response.

[dosubot]

Hi, @hcfw007! I'm Dosu, and I'm here to help the wechaty team manage their backlog. I wanted to let you know that we are marking this issue as stale.

From what I understand, you opened this issue suggesting the addition of a new method called postPayloadSayable to the wechaty-puppet library. The proposal was discussed in the Wechaty Community Meeting, and it was determined that any sayable in Moment can be parsed as a message, and all messages should be able to be parsed as a Post in the puppet implementation.

I wanted to check with you if this issue is still relevant to the latest version of the wechaty repository. If it is, please let the wechaty team know by commenting on the issue. Otherwise, feel free to close the issue yourself, or it will be automatically closed in 7 days.

Thank you for your contribution, and please let us know if you have any further questions or concerns!