import { ChatMember } from "https://deno.land/x/grammy_types/manage.ts";
import { Bot } from "https://deno.land/x/grammy/mod.ts";
import { Kysely } from 'npm:kysely';
import { Ctx } from "../ctx.ts";
import { Database } from "../../repo/scheme.ts";
import { CompiledConfig } from "../../cfg/config.ts";
import { checkUserOnNewChatMember, onMemberLeftChat, checkUserOnStart, checkUserTrx } from "./user_managment.ts";
import { checkCaptchaSolution, initUserCaptcha } from "./captcha.ts";
import { handleSafebooruQuery } from "./safebooru.ts";

interface ChatMemberUpdateStatus {
    joined:      boolean,
    left:        boolean,
    kicked:      boolean,
    restricted:  boolean,
    roleChanged: boolean
}
function getChatMemberUpdateStatus(oldMember: ChatMember, newMember: ChatMember): ChatMemberUpdateStatus {
  return {
    joined:      (oldMember.status === "left" || oldMember.status === "kicked")
                   && (newMember.status !== "left" && newMember.status !== "kicked"),
    left:        (oldMember.status !== "left" && oldMember.status !== "kicked")
                   && (newMember.status === "left" || newMember.status === "kicked"),
    kicked:      newMember.status === "kicked",
    restricted:  oldMember.status !== "restricted" && newMember.status === "restricted",
    roleChanged: oldMember.status !== newMember.status
                   && (newMember.status !== "left" && newMember.status !== "kicked")
  };
}


export const init = (bot: Bot<Ctx>, db: Kysely<Database>, cfg: CompiledConfig) => {
  console.log(`initializing normal mode`)
  const { botCfg } =  cfg  

  bot.on('message', async (ctx, next) => {
    if (!ctx.from || ctx.from.is_bot) return

    console.log('=======================================')
    console.log(`New message: CID: ${ctx.msg.chat.id} `+
      `From: ${ctx.from.first_name} ${ctx.from.last_name} `+
      `UID: ${ctx.from.id} Locale: ${ctx.from.language_code}`)
    console.log(ctx.msg.text)
    await next()
  })

  bot.on('message:text', async (ctx, next) => {
    if (ctx.chat.id === botCfg.chat_id) {
      console.log("Message was sent into the mic chat")
      const userInfo = await checkUserTrx(ctx, db, cfg.botCfg, true)
      console.log("User Info: ", userInfo)
    } else if (ctx.message.chat.type == "private" && ctx.session.captcha_data) {
      console.log("Handling message as captcha solution")
      await checkCaptchaSolution(ctx, db, botCfg)
    }
    await next()
  })

  bot.command('start', async ctx => {
    const userInfo = await checkUserOnStart(ctx, db)
    console.log("User clicked start. User Info: ", userInfo)
    if (userInfo.isBlocked || userInfo.isTimeout) return
    // TODO: if (userInfo.isNewUser) { /* Some hello message? */ }
    await initUserCaptcha(ctx, db, userInfo, botCfg)
  })

  bot.on('chat_member', async (ctx, next) => {
    if (ctx.chatMember.from.is_bot)     return
    if (ctx.chat.id !== botCfg.chat_id) return

    const { old_chat_member, new_chat_member } = ctx.chatMember
    const chatMemberUpdateStatus = getChatMemberUpdateStatus(old_chat_member, new_chat_member)
    console.log(chatMemberUpdateStatus)

    if (chatMemberUpdateStatus.joined) {
      const userInfo = await checkUserOnNewChatMember(ctx, db)
      console.log(
        `New chat member ${ctx.chatMember.from.id}: `+
        `${ctx.from.first_name} ${ctx.from.last_name}`
      )
      console.log("User info: ", userInfo)
      ctx.reply("Welcome!") // TODO: Change message
    } else if (chatMemberUpdateStatus.left) {
      console.log(
        `Chat member left ${ctx.chatMember.from.id}: `+
        `${ctx.from.first_name} ${ctx.from.last_name}`
      )
      await onMemberLeftChat(ctx, db)
      ctx.reply("pobeg s durki :(") // TODO: Change message
    }
    await next()
  })
  
  bot.inlineQuery(/sfbr */, async ctx => { await handleSafebooruQuery(ctx) })
}