use std, math, http, json, functional, files, jdbc
conn = getConnection("jdbc:sqlite:redditimages.db")
include "own-modules/telegram-bot/TelegramBot.own"
include "Reddit.own"
include "database.own"

bot = new TelegramBot(config.token)
reddit = new Reddit(config.cookie)

subreddits = reddit.fetchSubreddits(config.subreddits, config["items-in-top"])
media = stream(subreddits)
  .filter(def(p) = reduce([".jpg", ".jpeg", ".png"], false, def(acc, ext) = acc || indexOf(p.url, ext) > 0))
  .filter(::isPostUnique)
  //.peek(def(p) = bot.sendPhoto(config.peer, p.url))
  .limit(10)
  .peek(::addPost)
  .map(def(p) = {
     "type": "photo",
     "media": p.url,
     "caption": getCaption(p),
     "parse_mode": "html"
   })
  .toArray()

debug(media)

while (length(media) > 0) {
  r = bot.sendMediaGroupSync(config.peer, media)
  if (r.ok) break
  println r
  retryAfter = try(def() = parseInt(r.description.replaceAll(".*retry after (\d+).*", "$1")), 0)
  if (retryAfter > 0) {
    sleep(retryAfter * 1000 + 2800)
    continue
  }
  mediaIndex = try(def() = parseInt(r.description.replaceAll(".*failed.*?#(\d+).*", "$1")), -1)
  if (mediaIndex == -1) break
  media = arraySplice(media, mediaIndex - 1, 1)
  sleep(3000)
}

thread(def() {
  sleep(15000)
  exit(0)
})

stIsPostExists.close()
stAddPost.close()
conn.close()

// Helpers
def debug(r) {
 echo(jsonencode(r))
}

def strToHashtag(str) =
  str.toLowerCase()
    .replaceAll("[^a-z_0-9\s]", "")
    .replaceAll("\s+", "_")

def safe(str) = str.replace("&", "&")
  .replace("<", "&lt;").replace(">", "&gt;")

def getCaption(post) {
  tag = ""
  if (length(post.flair_text ?? "") > 0) {
    tag = " #" + strToHashtag(post.sub + "_" + post.flair_text)
  } else if (length(post.link_flair_text ?? "") > 0) {
    tag = " #" + strToHashtag(post.sub + "_" + post.link_flair_text)
  }
  return sprintf(
    "<a href=\"%s\">%s</a>\n" +
    "<a href=\"https://reddit.com%s\">🗨 Comments</a>%s\n" +
    "🔎 <a href=\"https://saucenao.com/search.php?url=%s\">SauceNAO</a>, " +
    "<a href=\"https://www.alamy.com/search.html?imageurl=%s\">Alamy</a>",
    safe(post.url), safe(post.title),
    safe(post.permalink), tag,
    urlencode(post.url),
    urlencode(post.url)
  )
}