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/exports.ts";
import { CompiledConfig } from "../../cfg/config.ts";
import { checkUser, checkUserOnNewChatMember, onMemberLeftChat, checkUserOnStart } 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" &&
      newMember.status !== "left" && newMember.status !== "kicked",
    left: oldMember.status !== "left" && newMember.status === "left",
    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?.is_bot) return
    console.log(`Chat ID: ${ctx.msg.chat.id} From: ${ctx.from.id} Message: ${ctx.msg.text}`)
    await next()
  })

  bot.on('message:text', async (ctx, next) => {
    if (ctx.chat.id === botCfg.chat_id) {
      await checkUser(ctx, db, botCfg, true)
    } else if (ctx.message.chat.type == "private" && ctx.session.captcha_data) {
      await checkCaptchaSolution(ctx, db, botCfg)
    } else {
      await next()
    }
  })

  bot.command('start', async ctx => {
    const userInfo = await checkUserOnStart(ctx, db)
    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.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)

    if (chatMemberUpdateStatus.joined) {
      console.log(`New Chat member ${ctx.chatMember.from.id}:'+
        '${ctx.from.first_name} ${ctx.from.last_name}`)
      await checkUserOnNewChatMember(ctx, db, botCfg)
      //  TODO: 
      // const userInfo = await checkUserOnNewChatMember(ctx, db, botCfg)
      //if (userInfo.isNewUser) { /* Some hello 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)
      //  TODO: /* POBEG S DURKI! */
    }
    await next()
  })
  
  bot.inlineQuery(/sfbr */, async ctx => { await handleSafebooruQuery(ctx) })
}