package comicanimator import ( "fmt" "html/template" "mime" "net/http" "os" "path/filepath" "sort" "strings" "time" ) func render(w http.ResponseWriter, src string, data any) { w.Header().Set("Content-Type", "text/html; charset=utf-8") if err := template.Must(template.New("page").Parse(src)).Execute(w, data); err != nil { http.Error(w, "render error", 500) } } func fragmentError(w http.ResponseWriter, status int, message string) { w.WriteHeader(status) fmt.Fprintf(w, `

`, template.HTMLEscapeString(message)) } func (t *Tool) renderCard(w http.ResponseWriter, g Generation, instructor bool) { poll := "" if g.Status != Completed && g.Status != Failed && !instructor { poll = ` hx-get="generations/` + template.HTMLEscapeString(g.ID) + `/status" hx-trigger="every 5s" hx-swap="outerHTML"` } statusClass := "badge-info" if g.Status == Completed { statusClass = "badge-success" } if g.Status == Failed { statusClass = "badge-error" } fmt.Fprintf(w, `

%s%s

`, poll, statusClass, template.HTMLEscapeString(strings.ReplaceAll(string(g.Status), "_", " ")), g.CreatedAt.Format("02 Jan 2006 · 15:04")) if instructor { fmt.Fprintf(w, `

Reviewed prompt

`, template.HTMLEscapeString(g.ReviewedPrompt)) if g.ProviderJobID != "" { fmt.Fprintf(w, `Provider job: %s`, template.HTMLEscapeString(g.ProviderJobID)) } } if g.Status == Completed { prefix := "generations/" fmt.Fprintf(w, `

Download video

`, prefix, g.ID, prefix, g.ID) } else if g.Status == Failed { fmt.Fprintf(w, `

`, template.HTMLEscapeString(g.ErrorMessage)) } else { fmt.Fprint(w, `

Creating your animation…

`) } fmt.Fprint(w, "

") } func (t *Tool) instructorPage(w http.ResponseWriter, r *http.Request) { render(w, instructorPage, map[string]any{"Outputs": t.outputs()}) } func (t *Tool) instructorGenerations(w http.ResponseWriter, r *http.Request) { for _, g := range t.store.list("") { t.renderCard(w, g, true) } } func (t *Tool) instructorVideo(w http.ResponseWriter, r *http.Request) { t.generationFile(w, r, true, false) } func (t *Tool) instructorDownload(w http.ResponseWriter, r *http.Request) { t.generationFile(w, r, true, true) } type outputFile struct { Name string Size int64 Modified time.Time } func (t *Tool) outputs() []outputFile { entries, err := os.ReadDir(t.cfg.OutputDirectory) if err != nil { return nil } out := []outputFile{} for _, e := range entries { if e.IsDir() { continue } ext := strings.ToLower(filepath.Ext(e.Name())) if ext != ".mp4" && ext != ".webm" && ext != ".mov" { continue } info, err := e.Info() if err == nil { out = append(out, outputFile{Name: e.Name(), Size: info.Size(), Modified: info.ModTime()}) } } sort.Slice(out, func(i, j int) bool { return out[i].Modified.After(out[j].Modified) }) return out } func (t *Tool) outputDownload(w http.ResponseWriter, r *http.Request) { name := r.PathValue("filename") if name != filepath.Base(name) { http.NotFound(w, r) return } path := filepath.Join(t.cfg.OutputDirectory, name) if _, err := os.Stat(path); err != nil { http.NotFound(w, r) return } serveFile(w, r, path, mime.TypeByExtension(filepath.Ext(name)), r.URL.Query().Get("preview") != "1") } const toolPage = `

Comic Animator

Bring a comic page to life

Upload a page, describe the motion, then review the animation prompt.

1Upload2Describe3Review4Generate

Source image

Upload one complete comic page

Describe the movement

Tell the animator what should move

Generate video

Review the settings and request approval

Duration{{.Duration}} seconds

AudioOff

SourceFirst frame

Video generation is a paid action and requires an instructor PIN.

Recent animations

Animations created in this browser session

Current session

` const instructorPage = `

Instructor console

Generation recovery

Monitor this process and recover completed files retained on disk.

Current process

Running and completed generations since startup

Live

Downloaded files

Restart-safe outputs retained on local storage

Not an audit log

{{.Name}}{{.Modified.UTC.Format "02 Jan 2006 · 15:04 UTC"}} · {{.Size}} bytesDownload