Files
mangaBookmark/backend/handlers.go
T

113 lines
3.0 KiB
Go

package main
import (
"encoding/json"
"log"
"net/http"
"strings"
"time"
)
type bookmarkHandler struct {
store *Store
}
func writeJSON(w http.ResponseWriter, status int, v any) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
if v != nil {
if err := json.NewEncoder(w).Encode(v); err != nil {
log.Printf("encode response: %v", err)
}
}
}
// list returns all bookmarks. GET /bookmarks
func (h *bookmarkHandler) list(w http.ResponseWriter, r *http.Request) {
items, err := h.store.List()
if err != nil {
log.Printf("list: %v", err)
http.Error(w, "internal error", http.StatusInternalServerError)
return
}
writeJSON(w, http.StatusOK, items)
}
// put upserts one bookmark. PUT /bookmarks/{key}
func (h *bookmarkHandler) put(w http.ResponseWriter, r *http.Request) {
key := r.PathValue("key")
if key == "" {
http.Error(w, "missing key", http.StatusBadRequest)
return
}
var b Bookmark
if err := json.NewDecoder(http.MaxBytesReader(w, r.Body, 1<<16)).Decode(&b); err != nil {
http.Error(w, "invalid JSON body", http.StatusBadRequest)
return
}
// Path key is authoritative; derive site/series_id from it when the body
// omits them so the stored row is always self-consistent.
b.Key = key
if b.Site == "" || b.SeriesID == "" {
if site, series, ok := strings.Cut(key, ":"); ok {
if b.Site == "" {
b.Site = site
}
if b.SeriesID == "" {
b.SeriesID = series
}
}
}
// An empty status is "no opinion" and Upsert keeps the stored bucket.
// Finishing a series is a web-UI decision, so the JSON API refuses it
// rather than trusting every client to leave it alone.
switch b.Status {
case "", statusReading, statusArchived:
case statusFinished:
http.Error(w, "status "+statusFinished+" can only be set from the web UI",
http.StatusBadRequest)
return
default:
http.Error(w, "invalid status", http.StatusBadRequest)
return
}
// Candidate timestamp, not a decision: Upsert keeps the stored one unless
// reading progress actually moved. Any client value is ignored.
b.UpdatedAt = time.Now().UnixMilli()
stored, err := h.store.Upsert(b)
if err != nil {
log.Printf("upsert: %v", err)
http.Error(w, "internal error", http.StatusInternalServerError)
return
}
// Echo the stored row: clients adopt this as their cached copy, so it must
// carry the authoritative updated_at rather than the candidate above.
writeJSON(w, http.StatusOK, stored)
}
// delete removes one bookmark. DELETE /bookmarks/{key}
func (h *bookmarkHandler) delete(w http.ResponseWriter, r *http.Request) {
key := r.PathValue("key")
if key == "" {
http.Error(w, "missing key", http.StatusBadRequest)
return
}
if err := h.store.Delete(key); err != nil {
log.Printf("delete: %v", err)
http.Error(w, "internal error", http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusNoContent)
}
func healthz(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Type", "text/plain")
w.WriteHeader(http.StatusOK)
_, _ = w.Write([]byte("ok"))
}