import { format } from "date-fns";
import { GuildScheduledEvent, Message, MessageCreateOptions, TextChannel } from "discord.js";
import { ScheduledTask } from "node-cron";
import { v4 as uuid } from "uuid";
import { client, yavinJellyfinHandler } from "../..";
import { config } from "../configuration";
import { Maybe } from "../interfaces";
import { logger } from "../logger";


export const name = 'guildScheduledEventCreate'

export enum Emotes { "1️⃣", "2️⃣", "3️⃣", "4️⃣", "5️⃣", "6️⃣", "7️⃣", "8️⃣", "9️⃣", "🔟" }
export const NONE_OF_THAT = "❌"

export let task: ScheduledTask | undefined

export async function execute(event: GuildScheduledEvent) {
    const requestId = uuid()
    
    if (event.name.toLowerCase().includes("!nextwp")) {
        logger.info("Event was a placeholder event to start a new watchparty and voting. Creating vote!", { guildId: event.guildId, requestId })
        logger.debug("Renaming event", { guildId: event.guildId, requestId })
        event.edit({ name: "Watchparty - Voting offen" })
        const movies = await yavinJellyfinHandler.getRandomMovieNames(5, event.guildId, requestId)

        logger.info(`Got ${movies.length} random movies. Creating voting`, { guildId: event.guildId, requestId })
        logger.debug(`Movies: ${JSON.stringify(movies)}`, { guildId: event.guildId, requestId })

        const announcementChannel: Maybe<TextChannel> = client.getAnnouncementChannelForGuild(event.guildId)
        if(!announcementChannel) {
            logger.error("Could not find announcement channel. Aborting", { guildId: event.guildId, requestId })
            return
        }
        logger.debug(`Found channel ${JSON.stringify(announcementChannel, null, 2)}`, { guildId: event.guildId, requestId })

        if(!event.scheduledStartAt) {
            logger.info("EVENT DOES NOT HAVE STARTDATE; CANCELLING", {guildId: event.guildId, requestId})
            return
        }
        const date = format(event.scheduledStartAt, "dd.MM")
        const time = format(event.scheduledStartAt, "HH:mm")
        let message = `[Abstimmung] für https://discord.com/events/${event.guildId}/${event.id}\n<@&${config.bot.announcement_role}> Es gibt eine neue Abstimmung für die nächste Watchparty am ${date} um ${time}! Stimme hierunter für den nächsten Film ab!\n`

        for (let i = 0; i < movies.length; i++) {
            message = message.concat(Emotes[i]).concat(": ").concat(movies[i]).concat("\n")
        }
        message = message.concat(NONE_OF_THAT).concat(": Wenn dir nichts davon gefällt.")

        const options: MessageCreateOptions = {
            allowedMentions: { parse: ["roles"]},
            content: message,
        }

        const sentMessage: Message<true> = await (await announcementChannel.fetch()).send(options)

        for (let i = 0; i < movies.length; i++) {
            sentMessage.react(Emotes[i])
        }
        sentMessage.react(NONE_OF_THAT)

        // sentMessage.pin() //todo: uncomment when bot has permission to pin messages. Also update closepoll.ts to only fetch pinned messages
    }
}