import * as fs from "node:fs";
import { queueLogger } from "../../logger.js";
import { addFile } from "../../../services/drive/add-file.js";
import { format as dateFormat } from "date-fns";
import { Users, Notes, Polls, DriveFiles } from "../../../models/index.js";
import { MoreThan } from "typeorm";
import { createTemp } from "../../../misc/create-temp.js";
const logger = queueLogger.createSubLogger("export-notes");
export async function exportNotes(job) {
    logger.info(`Exporting notes of ${job.data.user.id} ...`);
    const user = await Users.findOneBy({
        id: job.data.user.id
    });
    if (user == null) {
        return "skip: User not found";
    }
    // Create temp file
    const [path, cleanup] = await createTemp();
    logger.info(`Temp file is ${path}`);
    try {
        const stream = fs.createWriteStream(path, {
            flags: "a"
        });
        const write = (text)=>{
            return new Promise((res, rej)=>{
                stream.write(text, (err)=>{
                    if (err) {
                        logger.error(err);
                        rej(err);
                    } else {
                        res();
                    }
                });
            });
        };
        await write("[");
        let exportedNotesCount = 0;
        let cursor = null;
        while(true){
            const notes = await Notes.find({
                where: {
                    userId: user.id,
                    ...cursor ? {
                        id: MoreThan(cursor)
                    } : {}
                },
                take: 100,
                order: {
                    id: 1
                }
            });
            if (notes.length === 0) {
                job.updateProgress(100);
                break;
            }
            cursor = notes[notes.length - 1].id;
            for (const note of notes){
                let poll;
                if (note.hasPoll) {
                    poll = await Polls.findOneByOrFail({
                        noteId: note.id
                    });
                }
                const content = JSON.stringify(await serialize(note, poll));
                const isFirst = exportedNotesCount === 0;
                await write(isFirst ? content : ",\n" + content);
                exportedNotesCount++;
            }
            const total = await Notes.countBy({
                userId: user.id
            });
            job.updateProgress(exportedNotesCount / total);
        }
        await write("]");
        stream.end();
        logger.succ(`Exported to: ${path}`);
        const fileName = `notes-${dateFormat(new Date(), "yyyy-MM-dd-HH-mm-ss")}.json`;
        const driveFile = await addFile({
            user,
            path,
            name: fileName,
            force: true
        });
        logger.succ(`Exported to: ${driveFile.id}`);
    } finally{
        cleanup();
    }
    return "Success";
}
async function serialize(note, poll = null) {
    return {
        id: note.id,
        text: note.text,
        createdAt: note.createdAt,
        fileIds: note.fileIds,
        files: await DriveFiles.packMany(note.fileIds),
        replyId: note.replyId,
        renoteId: note.renoteId,
        poll: poll,
        cw: note.cw,
        visibility: note.visibility,
        visibleUserIds: note.visibleUserIds,
        localOnly: note.localOnly
    };
}
