const { InteractionContextType, ApplicationIntegrationType, SlashCommandBuilder, EmbedBuilder, ButtonBuilder, ButtonStyle } = require("discord.js");
const { readFileSync } = require("node:fs");
const { stringify } = require("node:querystring");
const { Pagination } = require("pagination.djs");

const data = new SlashCommandBuilder()
  .setName("file")
  .setDescription("SearxNG-powered file search")
  .addStringOption(builder =>
    builder //
      .setName("query")
      .setRequired(true)
      .setDescription("What to search for")
  )
  .setContexts([
    InteractionContextType.Guild,
    InteractionContextType.BotDM,
    InteractionContextType.PrivateChannel
  ])
  .setIntegrationTypes([
    ApplicationIntegrationType.GuildInstall,
    ApplicationIntegrationType.UserInstall
  ]);

function notEmpty(str) {
  return str && str.trim() !== ''
}

const emojis = JSON.parse(readFileSync("config/emojis.json"));

module.exports = {
  data,
  async execute(interaction) {
    const query = interaction.options.getString("query");
    await interaction.deferReply();

    var queryString = stringify({
      "categories": "files",
      "format": "json",
      "q": query
    });

    const embeds = [];
    const data = await (await fetch(`${process.env.SEARXNG_INSTANCE}/search?${queryString}`)).json();
    for (const result of data.results) {
      if (result.magnetlink)
        result.magnetlink = `[${result.magnetlink.slice(0, result.magnetlink.indexOf("&"))}](${process.env.BASE_URL}/magnet/${result.magnetlink})`;

      if (result.publishedDate)
        result.publishedDate = new Date(result.publishedDate).toLocaleDateString('en-us', { weekday: "long", year: "numeric", month: "short", day: "numeric" });

      const footerText = ([
        result.filesize,
        `${result.seed} S`,
        `${result.leech} L`,
        result.publishedDate
      ]).filter(notEmpty).join(" • ");

      const description = "• " + [
        result.magnetlink,
        result.torrentfile,
        result.url
      ].filter(notEmpty).join("\n• ");

      const embed = new EmbedBuilder()
        .setAuthor({
          name: result.engine,
          url: result.parsed_url.slice(0, 2).join("://")
        })
        .setTitle(result.title)
        .setURL(result.url)
        .setColor("#cba6f7")
        .setDescription(description)
        .setFooter({
          text: footerText
        });

      embeds.push(embed);
    }

    const pagination = new Pagination(interaction);
    pagination.setEmbeds(embeds, (embed, index, array) => {
      const footerText = [
        `${index + 1}/${array.length}`,
        embed.data.footer.text
      ].filter(notEmpty).join(' • ')
      return embed.setFooter({ text: footerText });
    });
    pagination.render();
  }
}