import sql from "../sql.js";

let _query_get = `
  with ranked_quotes as (
    select nick,
      item,
      rank() over (partition by nick order by id),
      count(*) over (partition by nick) as total
    from nxy_quotes
  )
  select *
  from ranked_quotes
  where lower(nick) like lower($1)
  order by {order}
  limit 1
  {offset}
`;
let _query_add = `
insert into nxy_quotes
  (nick, item, channel, created_by)
  values
  ($1, $2, $3, $4);
`;

module.exports = bot => {
  bot._trigger.set("quotes", new bot.trigger({
    call: /^(\.|\/)q .*/i,
    active: true,
    f: e => {
      let args = e.message.trim().substring(3).split(" ");
      const cmd = args[0].toLowerCase();
      let nick;

      switch(cmd) {
        case "add": // add quote
          if(args.length < 3)
            return e.reply("ob du behindert bist.");
          args.shift();
          nick = args[0].match(/<?[~&@%+]?([a-zA-Z0-9_\-^`|\\\[\]{}]+)>?/)[1];
          args.shift();
          let quote = args.join(" ");

          sql.any(_query_add, [ nick, quote, `${e.network}.${e.channel}`, e.user.nick ])
            .then(rows => { })
            .catch(err => {
              e.reply("duplicate!");
            });
        break;
        default: // get quote
          let nick = cmd;
          let index = 0
            , offset = 0
            , order = "rank asc"
            , rand = false
            , query = _query_get;

          if(args.length === 2) {
            if(isNaN(args[1]))
              return e.reply("Mayonnaise ist keine Zahl du Pfosten.");
            index = parseInt(args[1]);
            offset = index;
            order = (index < 0 ? "rank desc" : "rank asc");
            offset = Math.abs(offset) - 1;
          }
          else
            rand = true;

          query = query
            .replace("{order}", rand ? "random()" : order)
            .replace("{offset}", rand ? "" : `offset ${offset}`);
          sql.any(query, [nick])
            .then(rows => {
              if(!rows[0])
                return e.reply("index nicht vorhanden");
              e.reply(`[${rows[0].rank}/${rows[0].total}] <${rows[0].nick}> ${rows[0].item}`)
            })
            .catch(err => console.log(err));

          break;
      }
    }
  }));
};