/* eslint-disable no-continue */
/* eslint-disable no-await-in-loop */
import { Client } from '..';
import { RichEmbed } from '../class';
import { TierInterface } from '../models';

const channelID = '691824484230889546';

const memoryLimits = {
  TIER_1_SOFT: 250,
  TIER_1_HARD: 300,
  TIER_2_SOFT: 350,
  TIER_2_HARD: 400,
  TIER_3_SOFT: 500,
  TIER_3_HARD: 550,
};

export default function memory(client: Client) {
  setInterval(async () => {
    try {
      const accounts = await client.db.Account.find();
      for (const acc of accounts) {
        if (acc.root === true) continue;
        // memory in bytes
        const mem = Number(await client.util.exec(`memory ${acc.username}`)) * 1000;
        // memory in megabytes
        const memoryConversion = mem / 1024 / 1024;
        const userLimits: { soft?: number, hard?: number } = {};
        const tier: TierInterface = await client.db.Tier.findOne({ id: acc.tier }).lean().exec();
        userLimits.soft = tier.resourceLimits.ram;
        userLimits.hard = tier.resourceLimits.ram + 50;

        /* if the user has exceeded their soft memory limit, which is the one described in the
          resource limit guidelines, we'll inform staff.
        */
        if (memoryConversion >= userLimits.soft) {
          client.signale.info(`RAM Soft Limit Reached | ${acc.username} | ${memoryConversion}/${userLimits.soft} MB`);
          const embed = new RichEmbed();
          if (client.users.get(acc.userID)) embed.setThumbnail(client.users.get(acc.userID).avatarURL);
          embed.addField('User', `${acc.username} | <@${acc.userID}> | ${acc.userID}`, true);
          embed.addField('Tier', String(acc.tier), true);
          embed.addField('Memory Usage', `${String(memoryConversion)} MB`, true);
          embed.addField('Memory Limit', `${String(userLimits.soft)} MB`, true);
          embed.setFooter(client.user.username, client.user.avatarURL);
          embed.setTimestamp();

          // if they exceed the hard limit, we'll kill all of their processes.
          if (memoryConversion >= userLimits.hard) {
            client.signale.info(`RAM Hard Limit Reached | ${acc.username} | ${memoryConversion}/${userLimits.hard} MB`);
            client.util.exec(`killall -9 -u ${acc.username}`);
            embed.setTitle('Resource Enforcement Notification');
            embed.setDescription('Someone has reached the (hard) resource limit for their tier on RAM. The system has automatically killed all of their processes.');
            client.util.createModerationLog(acc.userID, client.guilds.get('446067825673633794').members.get(client.user.id), 1, '[AUTO] Exceeded resource limit for RAM.');
            client.util.transport.sendMail({
              to: acc.emailAddress,
              from: 'Library of Code sp-us | Cloud Services <help@libraryofcode.org>',
              subject: 'Your account has been warned',
              html: `
              <h1>Library of Code sp-us | Cloud Services</h1>
              <p>Your account has received an official warning from a Moderator. Please get the underlying issue resolved to avoid <i>possible</i> moderative action.</p>
              <p><strong>Reason:</strong> [AUTO] Exceeded resource limit for RAM.</p>
              <p><strong>Moderator:</strong> ${client.user.username}</p>
      
              <b><i>Library of Code sp-us | Support Team</i></b>
              `,
            });
          } else {
            embed.setTitle('Resource Limit Notification');
            embed.setDescription('Someone has reached the (soft) resource limit for their tier on RAM.');
          }
          // @ts-ignore
          client.createMessage(channelID, { embed });
        }
      }
    } catch (err) {
      client.util.handleError(err);
    }
  }, 60000);
}