Files
nexarch/workflow/internal/taskapi/taskapi.go
T
patrickandClaude Sonnet 5 ee6376162d
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TSK-04: aufgaben-oberflaeche
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-10-16 19:19:55 +00:00

94 lines
3.1 KiB
Go

// Package taskapi ist die HTTP-Bindung fuer das Aufgabenmodell (TSK-01)
// zur Aufgaben-Oberflaeche (TSK-04): Liste aller Aufgaben des gebundenen
// Mandanten-Schemas und der einzige Schreibweg fuer den Kanban-Status.
// Nutzeridentitaet kommt uebergangsweise aus X-User-Id, wie bereits bei
// caseapi/approvalapi (VOR-01/APR-01) etabliert.
package taskapi
import (
"encoding/json"
"errors"
"net/http"
"gitea.perlbach24.de/scripte/nexarch/workflow/internal/task"
)
type Server struct {
store *task.Store
}
func NewServer(store *task.Store) *Server {
return &Server{store: store}
}
func (s *Server) RegisterRoutes(mux *http.ServeMux) {
mux.HandleFunc("GET /tasks", s.requireUser(s.handleList))
mux.HandleFunc("POST /tasks/{id}/status", s.requireUser(s.handleSetStatus))
}
func (s *Server) requireUser(next func(w http.ResponseWriter, r *http.Request, userID string)) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
userID := r.Header.Get("X-User-Id")
if userID == "" {
writeError(w, http.StatusUnauthorized, "X-User-Id fehlt")
return
}
next(w, r, userID)
}
}
// handleList liefert alle Aufgaben des an diesen Server gebundenen
// Mandanten-Schemas (TSK-04 Akzeptanzkriterium 5: der Pool ist je
// Mandant getrennt, es gibt keinen Mandanten-Parameter, der die Antwort
// auf einen anderen Mandanten umlenken koennte).
func (s *Server) handleList(w http.ResponseWriter, r *http.Request, _ string) {
tasks, err := s.store.List(r.Context())
if err != nil {
writeError(w, http.StatusInternalServerError, "aufgaben konnten nicht geladen werden")
return
}
writeJSON(w, http.StatusOK, tasks)
}
type setStatusRequest struct {
Status string `json:"status"`
}
// handleSetStatus ist der Schreibweg fuer TSK-04 Akzeptanzkriterium 4:
// Drag & Drop in der Kanban-Ansicht ruft genau diesen Endpunkt auf, der
// seinerseits ausschliesslich task.Store.SetStatus (TSK-01) aufruft.
func (s *Server) handleSetStatus(w http.ResponseWriter, r *http.Request, _ string) {
id := r.PathValue("id")
var req setStatusRequest
if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
writeError(w, http.StatusBadRequest, "ungueltiger anfrage-koerper")
return
}
err := s.store.SetStatus(r.Context(), id, task.Status(req.Status))
switch {
case err == nil:
t, getErr := s.store.Get(r.Context(), id)
if getErr != nil {
writeError(w, http.StatusInternalServerError, "status geaendert, lesen fehlgeschlagen")
return
}
writeJSON(w, http.StatusOK, t)
case errors.Is(err, task.ErrNotFound):
writeError(w, http.StatusNotFound, "aufgabe nicht gefunden")
case errors.Is(err, task.ErrInvalidStatus):
writeError(w, http.StatusUnprocessableEntity, "unzulaessiger status")
default:
writeError(w, http.StatusInternalServerError, "status konnte nicht gesetzt werden")
}
}
func writeJSON(w http.ResponseWriter, status int, v any) {
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(status)
_ = json.NewEncoder(w).Encode(v)
}
func writeError(w http.ResponseWriter, status int, message string) {
writeJSON(w, status, map[string]string{"error": message})
}