93 lines
2.0 KiB
Go
Executable File
93 lines
2.0 KiB
Go
Executable File
package jobs
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import (
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"io/fs"
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"os"
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"path/filepath"
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"regexp"
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"sort"
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"time"
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"ddc/internal/files"
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)
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var jobIDPattern = regexp.MustCompile(`^[0-9a-f]{32}$`)
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func (manager *Manager) RestoreExisting() error {
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entries, err := os.ReadDir(manager.settings.DownloadDir)
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if err != nil {
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return err
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}
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var queuedJobs []*Job
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for _, entry := range entries {
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if !entry.IsDir() || !jobIDPattern.MatchString(entry.Name()) {
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continue
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}
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job := manager.restoreJob(entry)
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manager.store(job)
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if job.status == StatusQueued {
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queuedJobs = append(queuedJobs, job)
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}
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}
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sort.Slice(queuedJobs, func(first, second int) bool {
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return queuedJobs[first].createdAt.Before(queuedJobs[second].createdAt)
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})
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for _, job := range queuedJobs {
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job.workers.Add(1)
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manager.launchDownload(job)
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}
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return nil
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}
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func (manager *Manager) restoreJob(entry fs.DirEntry) *Job {
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directory := filepath.Join(manager.settings.DownloadDir, entry.Name())
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createdAt := time.Now()
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if info, err := entry.Info(); err == nil {
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createdAt = info.ModTime()
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}
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job := manager.newJob(entry.Name(), directory, createdAt)
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record, found := readRecord(directory)
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if found {
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job.applyRecord(record)
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}
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if !found || record.Phase == phaseDone {
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os.Remove(filepath.Join(directory, files.PartFileName))
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job.status = StatusReady
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job.downloaded = true
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job.fileName = firstEntryName(directory, entry.Name())
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return job
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}
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job.downloadState = record.Download
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if record.Download != nil {
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job.bytesDone.Store(record.Download.DoneBytes())
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job.bytesTotal.Store(record.Download.TotalBytes)
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}
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switch record.Phase {
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case phasePaused:
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job.status = StatusPaused
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case phaseFailed:
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job.status = StatusFailed
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job.message = record.Message
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default:
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job.status = StatusQueued
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}
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return job
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}
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func firstEntryName(directory, fallback string) string {
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entries, err := os.ReadDir(directory)
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if err != nil {
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return fallback
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}
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for _, entry := range entries {
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if !files.IsInternal(entry.Name()) {
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return entry.Name()
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}
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}
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return fallback
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}
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