feat: wip web admin for mapping and crud

1 files changed, 135 insertions, 0 deletions

diff --git a/internal/admin/api_files.go b/internal/admin/api_files.go
new file mode 100644
index 0000000..2a87dd3
--- /dev/null
+++ b/internal/admin/api_files.go
@@ -0,0 +1,135 @@
+package admin
+
+import (
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func (s *AdminServer) handleFiles(w http.ResponseWriter, r *http.Request) {
+	relPath := r.URL.Query().Get("path")
+	relPath = strings.TrimPrefix(relPath, "/")
+	relPath = strings.TrimPrefix(relPath, "data/")
+
+	switch r.Method {
+	case http.MethodGet:
+		if relPath == "" {
+			entries, err := os.ReadDir(s.dataDir)
+			if err != nil {
+				writeJSON(w, map[string]any{"error": err.Error()})
+				return
+			}
+			var files []map[string]any
+			for _, e := range entries {
+				files = append(files, map[string]any{
+					"name": e.Name(),
+					"dir":  e.IsDir(),
+				})
+			}
+			writeJSON(w, files)
+			return
+		}
+
+		fullPath := filepath.Join(s.dataDir, relPath)
+		info, err := os.Stat(fullPath)
+		if err != nil {
+			writeJSON(w, map[string]any{"error": "not found: " + relPath})
+			return
+		}
+
+		if info.IsDir() {
+			entries, err := os.ReadDir(fullPath)
+			if err != nil {
+				writeJSON(w, map[string]any{"error": err.Error()})
+				return
+			}
+			var files []map[string]any
+			for _, e := range entries {
+				files = append(files, map[string]any{
+					"name": e.Name(),
+					"dir":  e.IsDir(),
+				})
+			}
+			writeJSON(w, files)
+			return
+		}
+
+		data, err := os.ReadFile(fullPath)
+		if err != nil {
+			writeJSON(w, map[string]any{"error": "read error: " + err.Error()})
+			return
+		}
+		writeJSON(w, map[string]any{
+			"name":    info.Name(),
+			"content": string(data),
+			"path":    relPath,
+		})
+
+	case http.MethodPut, http.MethodPost:
+		if relPath == "" {
+			writeJSON(w, map[string]any{"error": "missing path"})
+			return
+		}
+		fullPath := filepath.Join(s.dataDir, relPath)
+
+		body, err := io.ReadAll(r.Body)
+		if err != nil {
+			writeJSON(w, map[string]any{"error": "read body: " + err.Error()})
+			return
+		}
+
+		var oldContent []byte
+		if existing, err := snapshotFile(fullPath); err == nil {
+			oldContent = existing
+		}
+
+		dir := filepath.Dir(fullPath)
+		if err := os.MkdirAll(dir, 0755); err != nil {
+			writeJSON(w, map[string]any{"error": "mkdir: " + err.Error()})
+			return
+		}
+
+		if err := os.WriteFile(fullPath, body, 0644); err != nil {
+			writeJSON(w, map[string]any{"error": "write error: " + err.Error()})
+			return
+		}
+
+		isCreate := oldContent == nil
+		desc := "Updated file " + relPath
+		if isCreate {
+			desc = "Created file " + relPath
+		}
+		s.undoStack.Push(ChangeDesc{
+			Description: desc,
+			FilePath:    fullPath,
+			OldContent:  oldContent,
+			NewContent:  body,
+			IsCreate:    isCreate,
+		})
+		writeJSON(w, map[string]any{"ok": true, "path": relPath})
+
+	case http.MethodDelete:
+		if relPath == "" {
+			writeJSON(w, map[string]any{"error": "missing path"})
+			return
+		}
+		fullPath := filepath.Join(s.dataDir, relPath)
+		oldContent, _ := snapshotFile(fullPath)
+		if err := os.Remove(fullPath); err != nil {
+			writeJSON(w, map[string]any{"error": "delete error: " + err.Error()})
+			return
+		}
+		s.undoStack.Push(ChangeDesc{
+			Description: "Deleted file " + relPath,
+			FilePath:    fullPath,
+			OldContent:  oldContent,
+			IsDelete:    true,
+		})
+		writeJSON(w, map[string]any{"ok": true, "path": relPath})
+
+	default:
+		http.Error(w, "method not allowed", http.StatusMethodNotAllowed)
+	}
+}