import { DMChannel, GuildBasedChannel, PartialDMChannel } from "discord.js";
import { Repository } from "typeorm";
import { DBChannel } from "../storage/entities/DBChannel";

export async function doesChannelExistByID(db: Repository<DBChannel>, channelID: string) : Promise<boolean> {
    return (await db.findOne({"where": {channel_snowflake: channelID}})) != null
}

export async function doesChannelExist(db: Repository<DBChannel>, channel : GuildBasedChannel | DMChannel | PartialDMChannel) : Promise<boolean> {
    return await doesChannelExistByID(db, channel.id)
}

export async function insertChannel(db: Repository<DBChannel>, channel: GuildBasedChannel | DMChannel | PartialDMChannel) : Promise<DBChannel | null> {
    const alreadyExists: boolean = await doesChannelExist(db, channel)

    if(alreadyExists) {
        return await db.findOne({"where": {channel_snowflake: channel.id}})
    }

    try {
        const newChannel : DBChannel = await db.create({
            channel_snowflake: channel.id,
            channel_name: channel.isDMBased() ? channel.recipient?.username : channel.name,
            is_dm: channel.isDMBased(),
            is_thread: channel.isThread(),
            is_voice: channel.isVoiceBased(),
            server: channel.isDMBased() ? null : {server_snowflake: channel.guild.id}
        })
        
        return await db.save(newChannel)
    } catch (err) {
        //TODO Winston should handle this
        console.log("CHANNEL INSERT ERROR")
        console.log(err)
        return null
    }
}