import type { NucleusClient } from "../utils/client.js";
import type { Message, MessageReference } from "discord.js";
import type Discord from "discord.js";

export const event = "messageUpdate";

export async function callback(client: NucleusClient, oldMessage: Message, newMessage: Message) {
    if (newMessage.author.id === client.user!.id) return;
    if (newMessage.author.bot) return;
    if (!newMessage.guild) return;
    const { log, isLogging, NucleusColors, entry, renderUser, renderDelta, renderNumberDelta, renderChannel } =
        client.logger;

    const replyTo: MessageReference | null = newMessage.reference;
    let newContent = newMessage.cleanContent.replaceAll("`", "‘");
    let oldContent = oldMessage.cleanContent.replaceAll("`", "‘");
    let attachmentJump = "";
    const config = (await client.database.guilds.read(newMessage.guild.id)).logging.attachments.saved[
        newMessage.channel.id + newMessage.id
    ];
    if (config) {
        attachmentJump = ` [[View attachments]](${config})`;
    }
    if (newMessage.crosspostable !== oldMessage.crosspostable) {
        if (!(await isLogging(newMessage.guild.id, "messageAnnounce"))) return;
        if (!replyTo) {
            const data = {
                meta: {
                    type: "messageAnnounce",
                    displayName: "Message Published",
                    calculateType: "messageAnnounce",
                    color: NucleusColors.green,
                    emoji: "MESSAGE.CREATE",
                    timestamp: newMessage.editedTimestamp ?? Date.now()
                },
                separate: {
                    end: `[[Jump to message]](${newMessage.url})`
                },
                list: {
                    messageId: entry(newMessage.id, `\`${newMessage.id}\``),
                    sentBy: entry(newMessage.author.id, renderUser(newMessage.author)),
                    sentIn: entry(
                        newMessage.channel.id,
                        renderChannel(newMessage.channel as Discord.GuildBasedChannel)
                    ),
                    sent: entry(newMessage.createdTimestamp, renderDelta(newMessage.createdTimestamp)),
                    published: entry(newMessage.editedTimestamp!, renderDelta(newMessage.editedTimestamp!)),
                    mentions: renderNumberDelta(oldMessage.mentions.users.size, newMessage.mentions.users.size),
                    attachments: entry(
                        renderNumberDelta(oldMessage.attachments.size, newMessage.attachments.size),
                        renderNumberDelta(oldMessage.attachments.size, newMessage.attachments.size) + attachmentJump
                    )
                },
                hidden: {
                    guild: newMessage.guild.id
                }
            };
            return log(data);
        }
    }
    if (!(await isLogging(newMessage.guild.id, "messageUpdate"))) return;
    if (!newMessage.editedTimestamp) {
        return;
    }
    if (newContent.length > 256) newContent = newContent.substring(0, 253) + "...";
    if (oldContent.length > 256) oldContent = oldContent.substring(0, 253) + "...";
    const data = {
        meta: {
            type: "messageUpdate",
            displayName: "Message Edited",
            calculateType: "messageUpdate",
            color: NucleusColors.yellow,
            emoji: "MESSAGE.EDIT",
            timestamp: newMessage.editedTimestamp
        },
        separate: {
            start:
                (oldContent
                    ? `**Before:**\n\`\`\`\n${oldContent}\n\`\`\`\n`
                    : "**Before:** *Message had no content*\n") +
                (newContent ? `**After:**\n\`\`\`\n${newContent}\n\`\`\`` : "**After:** *Message had no content*"),
            end: `[[Jump to message]](${newMessage.url})`
        },
        list: {
            messageId: entry(newMessage.id, `\`${newMessage.id}\``),
            sentBy: entry(newMessage.author.id, renderUser(newMessage.author)),
            sentIn: entry(newMessage.channel.id, renderChannel(newMessage.channel as Discord.GuildBasedChannel)),
            sent: entry(newMessage.createdTimestamp, renderDelta(newMessage.createdTimestamp)),
            edited: entry(newMessage.editedTimestamp, renderDelta(newMessage.editedTimestamp)),
            mentions: renderNumberDelta(oldMessage.mentions.users.size, newMessage.mentions.users.size),
            attachments: entry(
                renderNumberDelta(oldMessage.attachments.size, newMessage.attachments.size),
                renderNumberDelta(oldMessage.attachments.size, newMessage.attachments.size) + attachmentJump
            ),
            repliedTo: entry(
                replyTo ? replyTo.messageId! : null,
                replyTo
                    ? `[[Jump to message]](https://discord.com/channels/${newMessage.guild.id}/${newMessage.channel.id}/${replyTo.messageId})`
                    : "None"
            )
        },
        hidden: {
            guild: newMessage.guild.id
        }
    };
    await log(data);
}