feat(admin): add discovery pages database migration

supabase/migrations/20251018000000_create_discovery_pages_table.sql

@@ -0,0 +1,139 @@
+-- Create discovery_pages table for custom page management in discovery section
+-- Allows admins to add custom pages with routes and content
+-- Timestamp: 20251018000000
+
+-- --- BEGIN COMMENT ---
+-- 1. Create discovery_pages table
+-- --- END COMMENT ---
+CREATE TABLE IF NOT EXISTS public.discovery_pages (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  title TEXT NOT NULL,
+  route TEXT NOT NULL UNIQUE,
+  description TEXT,
+  icon_name TEXT, -- lucide icon name (e.g., 'FileText', 'BookOpen')
+  content JSONB, -- flexible content structure for future use
+  is_active BOOLEAN NOT NULL DEFAULT true,
+  display_order INTEGER NOT NULL DEFAULT 0,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  created_by UUID REFERENCES auth.users(id) ON DELETE SET NULL,
+  updated_by UUID REFERENCES auth.users(id) ON DELETE SET NULL,
+
+  -- Ensure route starts with '/' and is lowercase
+  CONSTRAINT valid_route CHECK (route ~ '^/[a-z0-9\-/]+$')
+);
+
+-- --- BEGIN COMMENT ---
+-- 2. Create indexes for performance
+-- Note: route column already has a UNIQUE constraint which creates an index automatically
+-- --- END COMMENT ---
+CREATE INDEX IF NOT EXISTS idx_discovery_pages_is_active ON public.discovery_pages(is_active);
+CREATE INDEX IF NOT EXISTS idx_discovery_pages_display_order ON public.discovery_pages(display_order);
+CREATE INDEX IF NOT EXISTS idx_discovery_pages_created_at ON public.discovery_pages(created_at DESC);
+
+-- --- BEGIN COMMENT ---
+-- 3. Create updated_at trigger
+-- --- END COMMENT ---
+CREATE OR REPLACE FUNCTION public.update_discovery_pages_updated_at()
+RETURNS TRIGGER AS $$
+BEGIN
+  NEW.updated_at = NOW();
+  RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TRIGGER trigger_update_discovery_pages_updated_at
+  BEFORE UPDATE ON public.discovery_pages
+  FOR EACH ROW
+  EXECUTE FUNCTION public.update_discovery_pages_updated_at();
+
+-- --- BEGIN COMMENT ---
+-- 4. Enable Row Level Security (RLS)
+-- --- END COMMENT ---
+ALTER TABLE public.discovery_pages ENABLE ROW LEVEL SECURITY;
+
+-- --- BEGIN COMMENT ---
+-- 5. Create RLS policies
+-- All authenticated users can read active pages
+-- Only admins can create, update, and delete pages
+-- --- END COMMENT ---
+
+-- Select policy: all authenticated users can view active pages
+CREATE POLICY "discovery_pages_select_policy" ON public.discovery_pages
+FOR SELECT USING (
+  auth.uid() IS NOT NULL
+  AND (
+    is_active = true
+    OR EXISTS (
+      SELECT 1 FROM public.profiles
+      WHERE id = auth.uid()
+      AND role = 'admin'
+    )
+  )
+);
+
+-- Insert policy: only admins can create pages
+CREATE POLICY "discovery_pages_insert_policy" ON public.discovery_pages
+FOR INSERT WITH CHECK (
+  EXISTS (
+    SELECT 1 FROM public.profiles
+    WHERE id = auth.uid()
+    AND role = 'admin'
+  )
+);
+
+-- Update policy: only admins can update pages
+CREATE POLICY "discovery_pages_update_policy" ON public.discovery_pages
+FOR UPDATE USING (
+  EXISTS (
+    SELECT 1 FROM public.profiles
+    WHERE id = auth.uid()
+    AND role = 'admin'
+  )
+);
+
+-- Delete policy: only admins can delete pages
+CREATE POLICY "discovery_pages_delete_policy" ON public.discovery_pages
+FOR DELETE USING (
+  EXISTS (
+    SELECT 1 FROM public.profiles
+    WHERE id = auth.uid()
+    AND role = 'admin'
+  )
+);
+
+-- --- BEGIN COMMENT ---
+-- 6. Verify table creation results
+-- --- END COMMENT ---
+DO $$
+DECLARE
+  table_exists BOOLEAN;
+  policy_count INTEGER;
+  index_count INTEGER;
+BEGIN
+  -- Check if table exists
+  SELECT EXISTS(
+    SELECT 1 FROM information_schema.tables
+    WHERE table_schema = 'public'
+    AND table_name = 'discovery_pages'
+  ) INTO table_exists;
+
+  -- Count policies
+  SELECT COUNT(*) INTO policy_count
+  FROM pg_policies
+  WHERE schemaname = 'public'
+  AND tablename = 'discovery_pages';
+
+  -- Count manually created indexes (with idx_ prefix)
+  SELECT COUNT(*) INTO index_count
+  FROM pg_indexes
+  WHERE schemaname = 'public'
+  AND tablename = 'discovery_pages'
+  AND indexname LIKE 'idx_%';
+
+  RAISE NOTICE '✅ Discovery pages table configuration completed';
+  RAISE NOTICE '📊 Table "discovery_pages" exists: %', table_exists;
+  RAISE NOTICE '🔒 Created % RLS policies', policy_count;
+  RAISE NOTICE '🔍 Created % indexes', index_count;
+  RAISE NOTICE '🎯 Admins can manage all pages, users can view active pages';
+END $$;