const { paginator } = require('#client');
const { DISCORD_INVITES, OPEN_SOURCE_REPOSITORY_URL, PERMISSION_GROUPS } = require("#constants");

const { createEmbed, formatPaginationEmbeds, page } = require("#utils/embed");
const { guildFeaturesField } = require("#utils/fields");
const { getGuildIcon } = require('#utils/guilds');
const { acknowledge } = require('#utils/interactions');
const { icon, timestamp, iconPill, iconLinkPill, link, smallIconPill, smallPill} = require("#utils/markdown");
const { editOrReply } = require("#utils/message");
const { STATIC_ASSETS } = require("#utils/statics");

module.exports = {
  name: 'invite',
  label: 'invite',
  aliases: ['inviteinfo'],
  metadata: {
    description: 'Displays information about a discord invite code.',
    description_short: 'Information about discord invite links',
    examples: ['invite discord-townhall'],
    category: 'info',
    usage: 'invite <invite code>'
  },
  permissionsClient: [...PERMISSION_GROUPS.baseline],
  run: async (context, args) => { 
    await acknowledge(context);
    
    if(!args.invite) return editOrReply(context, {
      content: link("https://canary.discord.com/application-directory/" + context.client.user.id + " ", "󠄴", "App Directory Invite", true) + link(DISCORD_INVITES.invite + " ", "󠄴", "labsCore Support Server", true),
      embeds: [createEmbed("default", context, {
        description: [
          "⠀",
          iconLinkPill("link", context.application.oauth2UrlFormat().replace("ptb.discordapp.com","discord.com"), 'Invite Link (Enable User Commands)', 'Discord Application Invite URL'),
          iconLinkPill("robot", DISCORD_INVITES.support, 'Support Server', 'labsCore Support Server'),
          iconLinkPill('gitlab', OPEN_SOURCE_REPOSITORY_URL, 'Source Code'),
        ].join('\n'),
        image: {
          url: STATIC_ASSETS.embed_invite_spacer
        }
      })
    ]})
    try{
      const inviteCode = args.invite.match(/(?:(?:https|http):\/\/)?(?:(?:discord.gg|(?:discord|discordapp)\.com\/invite)\/)?([A-z0-z-]{2,32})/)
      const invite = await context.client.rest.fetchInvite(inviteCode[1], {withCounts: true})

      const g = invite.guild
      // Guild Card

      let gDesc = ""
      if(g.description) gDesc = g.description + "\n\n"
      let inviteCard = createEmbed("default", context, {
        author: {
          name: g.name,
          iconUrl: getGuildIcon(g),
          url: `https://discord.gg/${inviteCode[1]}`
        },
        description: `-# discord.gg/${inviteCode[1]}\n${iconPill("user_multiple", invite.approximateMemberCount.toLocaleString())} ​ ​ • ​ ​ ${smallIconPill("status_online", invite.approximatePresenceCount.toLocaleString())}​ ​ ​ ${smallIconPill("status_offline", (invite.approximateMemberCount - invite.approximatePresenceCount).toLocaleString())}\n\n${gDesc}${smallIconPill("id", "Server ID")} ${smallPill(g.id)}\n${smallIconPill("calendar", "Server Created")} ${timestamp(g.createdAt, "f")}`,
        fields: [],
      })

      if((g.banner || g.splash || g.discoverySplash) !== null){
        inviteCard.image = {
          url: (g.bannerUrl || g.splashUrl || g.discoverySplashUrl) + "?size=4096"
        }

        // TODO: report
        if(g.discoverySplashUrl) inviteCard.image.url = inviteCard.image.url.replace("/splashes/","/discovery-splashes/");
      }

      // Guild Features
      if(g.features.length >= 1){
        let featureCards = guildFeaturesField(g)
                
        let pages = [];
        let i = 0;
        let ic = Math.ceil(featureCards.length / 2);
        
        if(ic === 1) featureCards[0].name = `${icon("list")} Server Features`
        while(featureCards.length >= 1){
          i++;
          const sub = featureCards.splice(0, 2)
          sub[0].name = `${icon("list")} Server Features (${i}/${ic})`

          pages.push(page(JSON.parse(JSON.stringify(Object.assign({ ...inviteCard }, { fields: sub })))))
        }

        await paginator.createPaginator({
          context,
          pages: formatPaginationEmbeds(pages)
        });
        return;
      }

      return editOrReply(context, inviteCard)
    }catch(e){
      console.log(e)
      return editOrReply(context, createEmbed("error", context, "Unable to fetch invite link."))
    }
  },
};