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 { getFullApAccount } from "../../../misc/convert-host.js";
import { createTemp } from "../../../misc/create-temp.js";
import { Users, Followings, Mutings } from "../../../models/index.js";
import { In, MoreThan, Not } from "typeorm";
const logger = queueLogger.createSubLogger("export-following");
export async function exportFollowing(job) {
    logger.info(`Exporting following 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"
        });
        let cursor = null;
        const mutings = job.data.excludeMuting ? await Mutings.findBy({
            muterId: user.id
        }) : [];
        while(true){
            const followings = await Followings.find({
                where: {
                    followerId: user.id,
                    ...mutings.length > 0 ? {
                        followeeId: Not(In(mutings.map((x)=>x.muteeId)))
                    } : {},
                    ...cursor ? {
                        id: MoreThan(cursor)
                    } : {}
                },
                take: 100,
                order: {
                    id: 1
                }
            });
            if (followings.length === 0) {
                break;
            }
            cursor = followings[followings.length - 1].id;
            for (const following of followings){
                const u = await Users.findOneBy({
                    id: following.followeeId
                });
                if (u == null) {
                    continue;
                }
                if (job.data.excludeInactive && u.updatedAt && Date.now() - u.updatedAt.getTime() > 1000 * 60 * 60 * 24 * 90) {
                    continue;
                }
                const content = getFullApAccount(u.username, u.host);
                await new Promise((res, rej)=>{
                    stream.write(content + "\n", (err)=>{
                        if (err) {
                            logger.error(err);
                            rej(err);
                        } else {
                            res();
                        }
                    });
                });
            }
        }
        stream.end();
        logger.succ(`Exported to: ${path}`);
        const fileName = `following-${dateFormat(new Date(), "yyyy-MM-dd-HH-mm-ss")}.csv`;
        const driveFile = await addFile({
            user,
            path,
            name: fileName,
            force: true
        });
        logger.succ(`Exported to: ${driveFile.id}`);
    } finally{
        cleanup();
    }
    return "Success";
}
