package jobs

import (
	"log/slog"
	"runtime/debug"
)

const shortIDLength = 8

func (job *Job) logger() *slog.Logger {
	return slog.With("download", job.id[:min(len(job.id), shortIDLength)])
}

func (job *Job) isDownloaded() bool {
	job.mutex.Lock()
	defer job.mutex.Unlock()
	return job.downloaded
}

func (manager *Manager) runInBackground(job *Job, task string, work func()) {
	go func() {
		defer job.workers.Done()
		defer func() {
			recovered := recover()
			if recovered == nil {
				return
			}
			job.logger().Error("background task crashed",
				"task", task,
				"panic", recovered,
				"stack", string(debug.Stack()),
			)
			status := StatusFailed
			if job.isDownloaded() {
				status = StatusReady
			}
			job.setStatus(status, "Internal error during "+task+". The server log has the details.")
			job.saveRecord()
		}()
		work()
	}()
}