feat: base go mkiso

internal/handler/print.go

@@ -0,0 +1,63 @@
+package handler
+
+import (
+	"log/slog"
+	"net/http"
+	"strings"
+
+	"mkiso-server/internal/service"
+)
+
+// PrintISO handles GET /api/iso/print?accession_number=X
+// This single endpoint handles both single and multi-accession relay.
+// If accession_number contains commas, it auto-detects multi mode.
+// Returns JSON response with relay results.
+func PrintISO(relaySvc *service.RelayService) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		acc := r.URL.Query().Get("accession_number")
+		if acc == "" {
+			writeJSON(w, http.StatusBadRequest, map[string]string{"error": "missing accession_number"})
+			return
+		}
+
+		accs := parseAccessions(acc)
+		if len(accs) == 0 {
+			writeJSON(w, http.StatusBadRequest, map[string]string{"error": "empty accession_number"})
+			return
+		}
+
+		slog.Info("handling print/relay",
+			"accessions", accs,
+			"mode", map[bool]string{true: "multi", false: "single"}[len(accs) > 1],
+		)
+
+		result, err := relaySvc.RelayToCDPublisher(r.Context(), accs)
+		if err != nil {
+			slog.Error("print ISO relay failed", "accessions", accs, "error", err)
+			status := http.StatusBadGateway
+			msg := "DICOM relay failed"
+
+			if strings.Contains(err.Error(), "no DICOM data") {
+				status = http.StatusNotFound
+				msg = "no DICOM data for accession_number"
+			} else if strings.Contains(err.Error(), "storescu relay failed") {
+				msg = "CD Publisher unreachable"
+			}
+
+			writeJSON(w, status, map[string]string{
+				"error":       msg,
+				"detail":      err.Error(),
+				"destination": relaySvc.Destination(),
+			})
+			return
+		}
+
+		writeJSON(w, http.StatusOK, map[string]interface{}{
+			"status":          "ok",
+			"accessions_sent": result.AccessionsSent,
+			"patient_name":    result.PatientName,
+			"destination":     result.Destination,
+			"files_sent":      result.FilesSent,
+		})
+	}
+}