import telebot, std/[asyncdispatch, logging, options, strutils, random, with, os], norm/[model, sqlite]

type
  CensoredData* = ref object of Model
    ftype*: string
    fhash*: string
    fileid*: string
    caption*: string

func NewCensoredData*(ftype = ""; fhash = ""; fileid = ""; caption = ""):
  CensoredData = CensoredData(ftype: ftype, fhash: fhash, fileid: fileid, caption: caption)

let dbConn* = sqlite.open("censordata.db", "", "", "")

dbConn.createTables(NewCensoredData())

var L = newConsoleLogger(fmtStr="$levelname, [$time] ")
addHandler(L)

proc generate_hash(): string=
  result = newString(7) 
  const charset = {'a' .. 'z', 'A' .. 'Z', '0' .. '9'}
  for i in 0..6:
    result[i] = sample(charset)
  return result

const API_KEY = getEnv("TELEGRAM_TOKEN")

proc updateHandler(b: Telebot, u: Update): Future[bool] {.async, gcsafe.} =
  let response = u.message.get
  if response.text.isSome:
    let message = response.text.get
    if message == "/start":
      discard await b.sendMessage(response.chat.id, "Hey, To create a censored post, you can share any album, video, photo, gif, sticker, etc. The messages could then be forwarded to any chat for them to view")
    elif message.contains("/start"):
      let deeplink = message.split(" ")
      var TempData = @[NewCensoredData()]
      dbConn.select(TempData, "fhash = ?", deeplink[1])
      for i in TempData:
        if i.ftype == "photo":
          discard await b.sendPhoto(response.chat.id, i.fileid, i.caption)
        if i.ftype == "document":
          discard await b.sendDocument(response.chat.id, i.fileid, i.caption)
        if i.ftype == "video":
          discard await b.sendVideo(response.chat.id, i.fileid, caption=i.caption)
        if i.ftype == "videonote":
          discard await b.sendVideoNote(response.chat.id, i.fileid)
        if i.ftype == "animation":
          discard await b.sendAnimation(response.chat.id, i.fileid, caption=i.caption)
  else:
    var fileid = ""
    var ftype = ""
    var fcaption = ""
    if response.caption.isSome:
      fcaption = response.caption.get
    if response.document.isSome:
      fileid = response.document.get.fileId
      ftype = "document"
    elif response.video.isSome:
      fileid = response.video.get.fileId
      ftype = "video"
    elif response.videoNote.isSome:
      fileid = response.videoNote.get.fileId
      ftype = "videonote"
    elif response.animation.isSome:
      fileid = response.animation.get.fileId
      ftype = "animation"
    elif response.photo.isSome:
      fileid = response.photo.get[0].fileId
      ftype = "photo"
    elif response.mediaGroupId.isSome:
      fileid = response.mediaGroupId.get

    let filehash = generate_hash()

    var CensoredRow = NewCensoredData(ftype, filehash, fileid, fcaption)

    with dbConn:
          insert CensoredRow

    discard await b.sendMessage(response.chat.id, "Censored --> " & "tg://resolve?domain=botbotbotnotabot&start=" & filehash)

let bot = newTeleBot(API_KEY)
bot.onUpdate(updateHandler)
bot.poll(timeout=300)