import { json, error } from '@sveltejs/kit';
import { getJob, setJobStatus, deleteJob } from '$lib/server/db.js';
import { cancelJob } from '$lib/server/whisper.js';
import { rm } from 'fs/promises';

export async function GET({ params }) {
	const job = getJob(params.id);
	if (!job) throw error(404, 'Job not found');
	return json(job);
}

const ACTIVE = new Set(['pending', 'downloading', 'preparing', 'warming_model', 'transcribing', 'processing']);

export async function DELETE({ params }) {
	const job = getJob(params.id);
	if (!job) throw error(404, 'Job not found');

	if (ACTIVE.has(job.status)) {
		// Cancel active job (keeps DB record)
		setJobStatus(params.id, 'cancelled', 0);
		// Best-effort: tell whisper to drop the queued job so it stops using GPU
		if (job.whisperJobId) cancelJob(job.whisperJobId).catch(() => {});
	} else {
		// Hard-delete terminal job + clean up output files
		deleteJob(params.id);
		if (job.outputDir) rm(job.outputDir, { recursive: true, force: true }).catch(() => {});
	}
	return new Response(null, { status: 204 });
}