Style: Unify cart Continue Shopping button with wishlist style

Updated cart dropdown Continue Shopping buttons to use btn-outline class (matching wishlist style) instead of btn-text across all pages. Changes: - shop.html: btn-text → btn-outline - contact.html: btn-text → btn-outline - product.html: btn-text → btn-outline - about.html: btn-text → btn-outline All cart Continue Shopping buttons now have consistent styling with the wishlist Continue Shopping button (purple outline style).
2026-01-14 20:47:32 -06:00
parent a888d70174
commit f818fff3a5
7 changed files with 114 additions and 46 deletions
--- a/PERFORMANCE_OPTIMIZATION.md
+++ b/PERFORMANCE_OPTIMIZATION.md
@@ -1,4 +1,5 @@
 # Performance Optimization Report
+
 ## SkyArtShop Website Performance Enhancements

 **Date:** January 14, 2026  
@@ -10,6 +11,7 @@
 ## Executive Summary

 Successfully optimized SkyArtShop for maximum performance without changing any functionality. All optimizations focus on:
+
 - Faster load times
 - Reduced memory usage
 - Efficient API calls
@@ -17,6 +19,7 @@ Successfully optimized SkyArtShop for maximum performance without changing any f
 - Intelligent caching

 **Key Results:**
+
 - ✅ API response times: 7-12ms (excellent performance)
 - ✅ Backend cache providing 0-41% performance gains
 - ✅ All 30+ database indexes verified and optimized
@@ -29,6 +32,7 @@ Successfully optimized SkyArtShop for maximum performance without changing any f
 ### New Indexes Created

 #### Products Table
+
 ```sql
 -- Slug lookup optimization (for product detail pages)
 CREATE INDEX idx_products_slug ON products(slug) WHERE isactive = true;
@@ -45,6 +49,7 @@ CREATE INDEX idx_products_active_category ON products(isactive, category)
 **Impact:** Product queries now use optimized index scans instead of full table scans.

 #### Blog Posts Table
+
 ```sql
 -- Slug lookup for individual blog posts
 CREATE INDEX idx_blogposts_slug ON blogposts(slug) WHERE ispublished = true;
@@ -57,6 +62,7 @@ CREATE INDEX idx_blogposts_published ON blogposts(ispublished, createdat DESC)
 **Impact:** Blog post queries execute 40-60% faster with index-only scans.

 #### Portfolio Projects Table
+
 ```sql
 -- Composite index for main portfolio query
 CREATE INDEX idx_portfolio_active_display 
@@ -89,6 +95,7 @@ VACUUM ANALYZE;
 ### New File: `/website/public/assets/js/api-cache.js`

 **Features:**
+
 - **Intelligent Caching:** Automatic caching of GET requests with configurable TTL
 - **Request Deduplication:** Multiple simultaneous requests to same endpoint only fetch once
 - **Memory Management:** Automatic cleanup of expired cache entries every 60 seconds
@@ -155,6 +162,7 @@ const response = await window.apiCache.fetch('/api/products');
 ### Script Loading Order

 All pages now load scripts in this optimized order:
+
 ```html
 <script src="/assets/js/api-cache.js"></script>  <!-- Load cache first -->
 <script src="/assets/js/shop-system.js"></script>
@@ -169,11 +177,13 @@ All pages now load scripts in this optimized order:
 The backend already had excellent performance optimizations in place:

 ### Existing Backend Caching
+
 - **Route-level caching:** Using `cacheMiddleware(ttl)`
 - **Query-level caching:** In-memory cache for SELECT queries
 - **Response optimization:** Field filtering, pagination, ETag generation

 ### Existing Database Optimizations
+
 - **Connection pooling:** 10-30 connections with keepAlive
 - **Query timeout:** 30s safeguard
 - **Prepared statements:** Automatic query plan caching
@@ -182,6 +192,7 @@ The backend already had excellent performance optimizations in place:
 ### API Route Performance

 All routes use:
+
 ```javascript
 // Cached for 5-30 minutes depending on endpoint
 cacheMiddleware(300000),  // 5 minutes
@@ -210,6 +221,7 @@ Automated testing of all endpoints with timing:
 ### Test Results

 #### API Endpoints (Cold vs Warm)
+
 ```
 /api/products
  HTTP 200 | Cold: 12ms | Warm: 7ms | Gain: 41%
@@ -233,6 +245,7 @@ Automated testing of all endpoints with timing:
 **Analysis:** Responses are already extremely fast (7-12ms). Backend cache shows up to 41% improvement on complex queries.

 #### Page Load Times
+
 ```
 /home       | HTTP 200 | Load: 8ms
 /shop       | HTTP 200 | Load: 7ms
@@ -249,21 +262,26 @@ Automated testing of all endpoints with timing:
 ### All Endpoints Verified ✅

 **Products API:**
+
 - ✅ GET /api/products - Returns all products with images
 - ✅ GET /api/products/featured - Returns 4 featured products
 - ✅ GET /api/products/:id - Returns single product by ID/slug
 - ✅ GET /api/categories - Returns unique categories

 **Portfolio API:**
+
 - ✅ GET /api/portfolio/projects - Returns 6 projects with images

 **Blog API:**
+
 - ✅ GET /api/blog/posts - Returns 3 published posts

 **Pages API:**
+
 - ✅ GET /api/pages - Returns all active custom pages

 ### Response Format (Consistent)
+
 ```json
 {
  "success": true,
@@ -273,7 +291,9 @@ Automated testing of all endpoints with timing:
 ```

 ### Error Handling
+
 All pages implement proper error handling:
+
 ```javascript
 try {
  const response = await window.apiCache.fetch('/api/...');
@@ -294,12 +314,14 @@ try {
 ### Frontend Memory Management

 **API Cache Memory:**
+
 - Maximum 500 cached entries (configurable)
 - Automatic cleanup every 60 seconds
 - Expired entries removed from memory
 - Memory-efficient crypto-based cache keys (MD5 hash)

 **Cache Statistics Available:**
+
 ```javascript
 // Get cache stats in browser console
 window.apiCache.getStats();
@@ -307,6 +329,7 @@ window.apiCache.getStats();
 ```

 **Manual Cache Control:**
+
 ```javascript
 // Clear specific entry
 window.apiCache.clear('/api/products');
@@ -318,6 +341,7 @@ window.clearAPICache();
 ### Backend Memory Management

 Already optimized:
+
 - Connection pool limits (max 30)
 - Query cache size limits
 - Automatic connection recycling
@@ -328,18 +352,21 @@ Already optimized:
 ## 8. Load Time Improvements

 ### Before Optimization (Estimated)
+
 - Cold API calls: ~15-20ms
 - Repeated API calls: ~15-20ms (no caching)
 - Database queries: Full table scans on some queries
 - Multiple simultaneous requests: Duplicate network calls

 ### After Optimization
+
 - Cold API calls: 7-12ms (backend cache + indexes)
 - Repeated API calls: <1ms (frontend cache hit)
 - Database queries: Index-only scans
 - Multiple simultaneous requests: Deduplicated (single fetch)

 ### Improvement Summary
+
 - **Database queries:** 40-60% faster with new indexes
 - **API responses:** Already excellent (7-12ms)
 - **Frontend cache hits:** Near-instant (<1ms)
@@ -353,6 +380,7 @@ Already optimized:
 ### Browser Console Logging

 Cache activity is logged for monitoring:
+
 ```javascript
 [Cache] FETCH: /api/products
 [Cache] SET: /api/products (TTL: 300000ms)
@@ -364,12 +392,14 @@ Cache activity is logged for monitoring:
 ### Performance Monitoring

 Check cache statistics:
+
 ```javascript
 // In browser console
 console.log(window.apiCache.getStats());
 ```

 Output:
+
 ```javascript
 {
  size: 6,              // Cached entries
@@ -389,11 +419,13 @@ Output:
 ### Database Monitoring

 Verify indexes:
+
 ```bash
 ./test-api-performance.sh
 ```

 Check query performance:
+
 ```sql
 -- In PostgreSQL
 EXPLAIN ANALYZE SELECT * FROM products WHERE isactive = true;
@@ -404,30 +436,35 @@ EXPLAIN ANALYZE SELECT * FROM products WHERE isactive = true;
 ## 10. Best Practices Implemented

 ### ✅ Database
+
 - Partial indexes with WHERE clauses (smaller, faster)
 - Composite indexes for multi-column queries
 - Regular ANALYZE for updated statistics
 - VACUUM for space reclamation

 ### ✅ Caching
+
 - Appropriate TTL per data type
 - Automatic cache invalidation
 - Request deduplication
 - Memory-efficient storage

 ### ✅ Frontend
+
 - Minimal dependencies
 - Progressive enhancement
 - Error boundaries
 - User-friendly error messages

 ### ✅ Backend
+
 - Query timeout safeguards
 - Connection pooling
 - Response compression
 - Security headers (Helmet.js)

 ### ✅ Testing
+
 - Automated performance testing
 - Cold vs warm comparison
 - Comprehensive endpoint coverage
@@ -440,6 +477,7 @@ EXPLAIN ANALYZE SELECT * FROM products WHERE isactive = true;
 ### Cache Management

 **Clear frontend cache:**
+
 ```javascript
 // In browser console
 window.clearAPICache();
@@ -447,6 +485,7 @@ window.clearAPICache();

 **Adjust cache TTL:**
 Edit `/website/public/assets/js/api-cache.js`:
+
 ```javascript
 this.ttlConfig = {
  '/api/products': 5 * 60 * 1000,  // Change to desired ms
@@ -457,12 +496,14 @@ this.ttlConfig = {
 ### Database Maintenance

 **Add new indexes:**
+
 ```sql
 -- In backend/optimize-database-indexes.sql
 CREATE INDEX CONCURRENTLY idx_name ON table(column);
 ```

 **Update statistics:**
+
 ```bash
 PGPASSWORD=SkyArt2025Pass psql -h localhost -U skyartapp -d skyartshop -c "ANALYZE;"
 ```
@@ -470,12 +511,14 @@ PGPASSWORD=SkyArt2025Pass psql -h localhost -U skyartapp -d skyartshop -c "ANALY
 ### Performance Testing

 **Run comprehensive test:**
+
 ```bash
 cd /media/pts/Website/SkyArtShop
 ./test-api-performance.sh
 ```

 **Monitor PM2 logs:**
+
 ```bash
 pm2 logs skyartshop
 ```
@@ -485,11 +528,13 @@ pm2 logs skyartshop
 ## 12. Files Modified

 ### New Files Created
+
 - ✅ `backend/optimize-database-indexes.sql` - Database optimization script
 - ✅ `website/public/assets/js/api-cache.js` - Frontend caching system
 - ✅ `test-api-performance.sh` - Automated testing script

 ### Modified Files
+
 - ✅ `website/public/portfolio.html` - Added api-cache integration
 - ✅ `website/public/blog.html` - Added api-cache integration
 - ✅ `website/public/shop.html` - Added api-cache integration
@@ -519,6 +564,7 @@ pm2 logs skyartshop
 While current performance is excellent, these could provide marginal gains:

 ### Advanced Optimizations (Optional)
+
 1. **Image Lazy Loading:** Already implemented with `loading="lazy"`
 2. **CDN Integration:** Consider CDN for static assets
 3. **Service Worker:** Add offline caching for PWA
@@ -526,6 +572,7 @@ While current performance is excellent, these could provide marginal gains:
 5. **WebP Images:** Convert images to WebP format

 ### Monitoring (Optional)
+
 1. **Real User Monitoring:** Track actual user load times
 2. **Error Tracking:** Sentry or similar for production errors
 3. **Analytics:** Track cache hit rates in production
@@ -544,6 +591,7 @@ While current performance is excellent, these could provide marginal gains:
 **Performance Grade: A+**

 The SkyArtShop website is now highly optimized for:
+
 - Fast load times (< 10ms)
 - Low memory usage (automatic cleanup)
 - Efficient API calls (cached + deduplicated)