import { readFileSync } from "fs";
const { version } = JSON.parse(readFileSync(new URL("../../package.json", import.meta.url)));
import os from "os";
import Command from "../../classes/command.js";
import { VERSION } from "eris";
import pm2 from "pm2";
import { getServers } from "../../utils/misc.js";

class StatsCommand extends Command {
  async run() {
    const uptime = process.uptime() * 1000;
    const connUptime = this.client.uptime;
    const owner = await this.client.getRESTUser(process.env.OWNER.split(",")[0]);
    const servers = await getServers(this.client);
    const processMem = `${(process.memoryUsage().heapUsed / 1024 / 1024).toFixed(2)} MB`;
    return {
      embeds: [{
        "author": {
          "name": "esmBot Statistics",
          "icon_url": this.client.user.avatarURL
        },
        "description": `This instance is managed by **${owner.username}#${owner.discriminator}**.`,
        "color": 16711680,
        "fields": [{
          "name": "Version",
          "value": `v${version}${process.env.NODE_ENV === "development" ? `-dev (${process.env.GIT_REV})` : ""}`
        },
        {
          "name": "Process Memory Usage",
          "value": processMem,
          "inline": true
        },
        {
          "name": "Total Memory Usage",
          "value": process.env.PM2_USAGE ? `${((await this.list()).reduce((prev, cur) => prev + cur.monit.memory, 0) / 1024 / 1024).toFixed(2)} MB` : processMem,
          "inline": true
        },
        {
          "name": "Bot Uptime",
          "value": `${Math.trunc(uptime / 86400000)} days, ${Math.trunc(uptime / 3600000) % 24} hrs, ${Math.trunc(uptime / 60000) % 60} mins, ${Math.trunc(uptime / 1000) % 60} secs`
        },
        {
          "name": "Connection Uptime",
          "value": `${Math.trunc(connUptime / 86400000)} days, ${Math.trunc(connUptime / 3600000) % 24} hrs, ${Math.trunc(connUptime / 60000) % 60} mins, ${Math.trunc(connUptime / 1000) % 60} secs`
        },
        {
          "name": "Host",
          "value": `${os.type()} ${os.release()} (${os.arch()})`,
          "inline": true
        },
        {
          "name": "Library",
          "value": `Eris ${VERSION}`,
          "inline": true
        },
        {
          "name": "Node.js Version",
          "value": process.version,
          "inline": true
        },
        {
          "name": "Shard",
          "value": this.channel.guild ? this.client.guildShardMap[this.channel.guild.id] : "N/A",
          "inline": true
        },
        {
          "name": "Servers",
          "value": servers ? servers : `${this.client.guilds.size} (for this process only)`,
          "inline": true
        }
        ]
      }]
    };
  }

  list() {
    return new Promise((resolve, reject) => {
      pm2.list((err, list) => {
        if (err) return reject(err);
        resolve(list.filter((v) => v.name === "esmBot"));
      });
    });
  }

  static description = "Gets some statistics about me";
  static aliases = ["status", "stat"];
}

export default StatsCommand;