const fetch = require("node-fetch");

const role = { online: "Online", idle: "Idle", dnd: "DND", offline: "Offline" };
const statusy = { Offline: "0", Online: "1", Idle: "2", DND: "3", OnlinePhone: "11", IdlePhone: "12", DNDPhone: "13" };
const prepSend = pair => {
  const changes = [];

  pair.forEach(par => {
    const us = par[0];
    changes.push({ id: us.id, status: par[1], nick: us.username, pfp: us.avatar ?? "" });
  });

  poslatData({ changes });
};

const poslatData = data => {
  data.pwd = process.env.STAT_PASS;
  fetch("http://deadfish.cz:4629/endpoint-pro-denimka/", { method: "POST", headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(data) });
};

const statusOnFoun = (bef, aft) => {
  if (!bef) bef = { status: 'offline', clientStatus: {} };
  const predAPo = ["", ""];

  [bef, aft].forEach((s, i) => {
    const mobile = s.clientStatus.mobile;
    if (mobile && mobile !== s.clientStatus.desktop) {
      predAPo[i] = `${role[mobile]}Phone`;
    }
    else {
      predAPo[i] = role[s.status];
    }
  });

  return predAPo;
};

const ziju = () => {
  poslatData({ nejsemPoslej: !0 });
  setTimeout(ziju, 60_000);
};

if (!process.env.IGNORE_PRESENCE) ziju();

const getRole = (status, server) =>
  server.roles.cache.find(role => role.name === `Status${status}`);

module.exports = {

  // Změna rolí podle statusu a odeslání statusu
  on_presenceUpdate: (bef, aft) => {
    if (process.env.IGNORE_PRESENCE) return;

    const [statusPred, statusPo] = statusOnFoun(bef, aft);
    if (statusPred === statusPo) return;
    const rolePred = getRole(statusPred, aft.guild);
    const rolePo = getRole(statusPo, aft.guild);


    if (rolePred) aft.member.roles.remove(rolePred);
    if (rolePo) aft.member.roles.add(rolePo);

    prepSend([[aft.user, statusy[statusPo]]]);
  },

  // Odeslání statusů při startu bota
  on_ready: () => {
    if (process.env.IGNORE_PRESENCE) return;

    const client = module.exports.client;
    const guildy = client.guilds.cache;
    const memberove = client.users.cache.clone();
    const presence = [];
    const changes = [];

    guildy.each(guilda => {
      guilda.presences.cache.each(pres => {
        if (!presence.filter(prs => prs.userID === pres.userID).length) presence.push(pres);
      });
    });

    presence.forEach(presenc => {
      const status = statusOnFoun(null, presenc)[1];
      changes.push([memberove.get(presenc.userID), statusy[status]]);
      memberove.delete(presenc.userID);
    });

    memberove.each(member => {
      changes.push([member, 0]);
    });

    prepSend(changes);
  },

  // Odeslání statusu při změně jména nebo profilovky
  on_userUpdate: (bef, aft) => {
    if (!process.env.IGNORE_PRESENCE)
      prepSend([[aft, statusy[statusOnFoun(null, aft.presence)[1]]]]);
  }
};