import { EmbedBuilder, SlashCommandBuilder } from "discord.js";
import fs from "fs/promises";
import { t, getLang } from "../util/i18n.js";

export default {
  name: "top",
  description: "Zeigt die meistgeladenen/bestbewerteten beobachteten Plugins",
  aliases: [],
  guild: ["all"],
  nsfw: false,
  user_permissions: [],
  bot_permissions: [],
  args_required: 0,
  args_usage: "[-r]  -r = nach Bewertung sortieren",
  cooldown: 10,

  data: new SlashCommandBuilder()
    .setName("top")
    .setDescription("Shows the top watched plugins by downloads or rating")
    .addStringOption((opt) =>
      opt
        .setName("sortierung")
        .setDescription("Sortierung")
        .setRequired(false)
        .addChoices(
          { name: "⬇️ Downloads", value: "downloads" },
          { name: "⭐ Bewertung",  value: "rating" }
        )
    ),

  async execute(client, ctx, args) {
    const guildID  = ctx.guild.id;
    const filePath = `./serverdata/${guildID}.json`;

    let saveData;
    try {
      const raw = await fs.readFile(filePath, "utf8");
      saveData = JSON.parse(raw);
    } catch {
      return ctx.reply("Dieser Server hat keine beobachteten Ressourcen.");
    }

    const lang   = getLang(saveData);
    const sortBy = ctx.isSlash
      ? (ctx.interaction.options.getString("sortierung") ?? "downloads")
      : (args.includes("-r") ? "rating" : "downloads");

    const watched = saveData.watchedResources;
    if (!watched || watched.length === 0) {
      return ctx.reply(t(lang, "top.noData"));
    }

    // Fetch stats for all watched resources
    const results = [];
    for (const w of watched) {
      try {
        const res  = await fetch(`https://api.spiget.org/v2/resources/${w.resourceID}`);
        if (!res.ok) continue;
        const data = await res.json();
        results.push({
          id:        w.resourceID,
          name:      data.name ?? w.resourceName ?? w.resourceID,
          downloads: data.downloads ?? 0,
          rating:    data.rating?.average ?? 0,
          version:   w.lastCheckedVersion ?? "?",
          channelID: w.channelID,
        });
        await new Promise((r) => setTimeout(r, 300));
      } catch { /* Plugin überspringen */ }
    }

    if (results.length === 0) {
      return ctx.reply(t(lang, "error.apiDown"));
    }

    // Sort
    results.sort((a, b) =>
      sortBy === "rating" ? b.rating - a.rating : b.downloads - a.downloads
    );

    const sortLabel = t(lang, sortBy === "rating" ? "top.rating" : "top.downloads");
    const medal     = ["🥇", "🥈", "🥉"];

    const list = results.map((r, i) => {
      const icon    = medal[i] ?? `${i + 1}.`;
      const dl      = r.downloads.toLocaleString("de-DE");
      const stars   = r.rating > 0 ? `⭐ ${r.rating.toFixed(1)}` : "⭐ –";
      return `${icon} **${r.name}** (v${r.version})\n⬇️ ${dl}  ${stars}  🆔 \`${r.id}\``;
    }).join("\n\n");

    const embed = new EmbedBuilder()
      .setColor(ctx.guild.members.me.displayHexColor)
      .setTitle(t(lang, "top.title", { sort: sortLabel }))
      .setDescription(list)
      .setFooter({ text: `${results.length} Plugins • ${client.config.prefix}plugin [id] für Details` })
      .setTimestamp();

    return ctx.reply({ embeds: [embed] });
  },
};