feat: wip web admin for mapping and crud

1 files changed, 166 insertions, 0 deletions

diff --git a/internal/admin/api_items.go b/internal/admin/api_items.go
new file mode 100644
index 0000000..3ab20ae
--- /dev/null
+++ b/internal/admin/api_items.go
@@ -0,0 +1,166 @@
+package admin
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func (s *AdminServer) handleItems(w http.ResponseWriter, r *http.Request) {
+	switch r.Method {
+	case http.MethodGet:
+		ids, err := listYAMLFiles(s.dataDir, "items")
+		if err != nil {
+			http.Error(w, `{"error":"failed to list items"}`, http.StatusInternalServerError)
+			return
+		}
+		if ids == nil {
+			ids = []string{}
+		}
+		writeJSON(w, ids)
+	case http.MethodPost:
+		s.createItem(w, r)
+	default:
+		http.Error(w, `{"error":"method not allowed"}`, http.StatusMethodNotAllowed)
+	}
+}
+
+func (s *AdminServer) handleItemByID(w http.ResponseWriter, r *http.Request) {
+	id := strings.TrimPrefix(r.URL.Path, "/api/items/")
+	if id == "" {
+		http.Error(w, `{"error":"missing item id"}`, http.StatusBadRequest)
+		return
+	}
+
+	switch r.Method {
+	case http.MethodGet:
+		s.getItem(w, r, id)
+	case http.MethodPut:
+		s.updateItem(w, r, id)
+	case http.MethodDelete:
+		s.deleteItem(w, r, id)
+	default:
+		http.Error(w, `{"error":"method not allowed"}`, http.StatusMethodNotAllowed)
+	}
+}
+
+func (s *AdminServer) findItemFile(id string) ([]byte, string, error) {
+	data, path, err := readYAMLFile(s.dataDir, "items", id)
+	if err == nil {
+		return data, path, nil
+	}
+	return findYAMLFileInSubdirs(s.dataDir, "items", id)
+}
+
+func (s *AdminServer) getItem(w http.ResponseWriter, r *http.Request, id string) {
+	data, path, err := s.findItemFile(id)
+	if err != nil {
+		http.Error(w, `{"error":"item not found"}`, http.StatusNotFound)
+		return
+	}
+	m, err := yamlToMap(data)
+	if err != nil {
+		http.Error(w, `{"error":"failed to parse item yaml"}`, http.StatusInternalServerError)
+		return
+	}
+	m["_path"] = path
+	m["_raw"] = string(data)
+	writeJSON(w, m)
+}
+
+func (s *AdminServer) updateItem(w http.ResponseWriter, r *http.Request, id string) {
+	_, path, err := s.findItemFile(id)
+	if err != nil {
+		http.Error(w, `{"error":"item not found"}`, http.StatusNotFound)
+		return
+	}
+
+	var m map[string]any
+	if err := readJSON(r, &m); err != nil {
+		http.Error(w, `{"error":"invalid json body"}`, http.StatusBadRequest)
+		return
+	}
+	m["id"] = id
+
+	oldContent, err := snapshotFile(path)
+	if err != nil {
+		http.Error(w, `{"error":"failed to read existing item"}`, http.StatusInternalServerError)
+		return
+	}
+
+	newContent, err := writeMapAsYAML(path, m)
+	if err != nil {
+		http.Error(w, `{"error":"failed to write item"}`, http.StatusInternalServerError)
+		return
+	}
+
+	s.undoStack.Push(ChangeDesc{
+		Description: fmt.Sprintf("Update item %s", id),
+		FilePath:    path,
+		OldContent:  oldContent,
+		NewContent:  newContent,
+	})
+
+	writeJSON(w, m)
+}
+
+func (s *AdminServer) deleteItem(w http.ResponseWriter, r *http.Request, id string) {
+	_, path, err := s.findItemFile(id)
+	if err != nil {
+		http.Error(w, `{"error":"item not found"}`, http.StatusNotFound)
+		return
+	}
+
+	oldContent := backupFile(path)
+
+	if err := os.Remove(path); err != nil {
+		http.Error(w, `{"error":"failed to delete item"}`, http.StatusInternalServerError)
+		return
+	}
+
+	s.undoStack.Push(ChangeDesc{
+		Description: fmt.Sprintf("Delete item %s", id),
+		FilePath:    path,
+		OldContent:  oldContent,
+		IsDelete:    true,
+	})
+
+	writeJSON(w, map[string]any{"deleted": id})
+}
+
+func (s *AdminServer) createItem(w http.ResponseWriter, r *http.Request) {
+	var m map[string]any
+	if err := readJSON(r, &m); err != nil {
+		http.Error(w, `{"error":"invalid json body"}`, http.StatusBadRequest)
+		return
+	}
+	id, _ := m["id"].(string)
+	if strings.TrimSpace(id) == "" {
+		http.Error(w, `{"error":"missing item id"}`, http.StatusBadRequest)
+		return
+	}
+
+	if _, _, err := s.findItemFile(id); err == nil {
+		http.Error(w, `{"error":"item already exists"}`, http.StatusConflict)
+		return
+	}
+
+	path := filepath.Join(s.dataDir, "items", id+".yaml")
+
+	newContent, err := writeMapAsYAML(path, m)
+	if err != nil {
+		http.Error(w, `{"error":"failed to write item"}`, http.StatusInternalServerError)
+		return
+	}
+
+	s.undoStack.Push(ChangeDesc{
+		Description: fmt.Sprintf("Create item %s", id),
+		FilePath:    path,
+		NewContent:  newContent,
+		IsCreate:    true,
+	})
+
+	writeJSON(w, m)
+}