import { bold, format, join, mention, TelegramUser, User } from 'gramio'
import { chunk } from '../utilities/chunk.js'
import { RoleService } from './role.js'
import { bot } from '@/bot/index.js'

export class MentionService {
  static async mentionAll(query: string, chatId: number, caller: User, replyMessageId?: number) {
    const role = await RoleService.getBySlugOrAlias(query, chatId)
    if (!role) {
      throw new Error('Role not found')
    }

    const members = await RoleService.getMemberIds(query, chatId)
    const membersChunks = chunk(members, 5)

    for (const memberChunk of membersChunks) {
      const message = format`
        ${bold('Mass mention by')} ${bold(mention('user', { id: caller.id, is_bot: caller.isBot(), first_name: caller.firstName }))}

        ${join(this.buildMentions(memberChunk), (entity) => entity, ' ')}
      `

      await bot.api.sendMessage({
        chat_id: role.chatId,
        text: message,
        ...(replyMessageId ? {
          reply_parameters: {
            message_id: replyMessageId,
            allow_sending_without_reply: true
          }
        }: {})
      })
    }
  }

  static buildMentions (ids: number[]) {
    return ids.map((id) => mention('👋', { id, is_bot: false, first_name: '' }))
  }
}