Refactor: Implement type safety plan

src/lib/entityValidationSchemas.ts

@@ -346,11 +346,39 @@ async function checkSlugUniqueness(
   try {
     console.log(`Checking slug uniqueness for "${slug}" in ${tableName}, excludeId: ${excludeId}`);
     
-    const { data, error } = await supabase
-      .from(tableName as any)
-      .select('id')
-      .eq('slug', slug)
-      .limit(1);
+    // Type-safe queries for each table
+    type ValidTableName = 'parks' | 'rides' | 'companies' | 'ride_models' | 'photos';
+    
+    // Validate table name
+    const validTables: ValidTableName[] = ['parks', 'rides', 'companies', 'ride_models', 'photos'];
+    if (!validTables.includes(tableName as ValidTableName)) {
+      console.error(`Invalid table name: ${tableName}`);
+      return true; // Assume unique on invalid table
+    }
+    
+    // Query with explicit table name
+    let data, error;
+    if (tableName === 'parks') {
+      const result = await supabase.from('parks').select('id').eq('slug', slug).limit(1);
+      data = result.data;
+      error = result.error;
+    } else if (tableName === 'rides') {
+      const result = await supabase.from('rides').select('id').eq('slug', slug).limit(1);
+      data = result.data;
+      error = result.error;
+    } else if (tableName === 'companies') {
+      const result = await supabase.from('companies').select('id').eq('slug', slug).limit(1);
+      data = result.data;
+      error = result.error;
+    } else if (tableName === 'ride_models') {
+      const result = await supabase.from('ride_models').select('id').eq('slug', slug).limit(1);
+      data = result.data;
+      error = result.error;
+    } else {
+      const result = await supabase.from('photos').select('id').eq('slug', slug).limit(1);
+      data = result.data;
+      error = result.error;
+    }
 
     if (error) {
       console.error(`Slug uniqueness check failed for ${entityType}:`, error);
@@ -364,7 +392,7 @@ async function checkSlugUniqueness(
     }
 
     // If excludeId provided and matches, it's the same entity (editing)
-    if (excludeId && data[0] && ((data[0] as unknown) as { id: string }).id === excludeId) {
+    if (excludeId && data[0] && data[0].id === excludeId) {
       console.log(`Slug "${slug}" matches current entity (editing mode)`);
       return true;
     }