Improve the UI and tests

services/inventory/migrations/001_add_performance_indexes.sql

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+-- ================================================================
+-- Performance Indexes Migration for Inventory Service
+-- Created: 2025-11-15
+-- Purpose: Add indexes to improve dashboard query performance
+-- ================================================================
+
+-- Index for ingredients by tenant and ingredient_category
+-- Used in: get_stock_by_category, get_business_model_metrics
+CREATE INDEX IF NOT EXISTS idx_ingredients_tenant_ing_category
+ON ingredients(tenant_id, ingredient_category)
+WHERE is_active = true;
+
+-- Index for ingredients by tenant and product_category
+-- Used in: get_stock_status_by_category
+CREATE INDEX IF NOT EXISTS idx_ingredients_tenant_prod_category
+ON ingredients(tenant_id, product_category)
+WHERE is_active = true;
+
+-- Index for stock by tenant, ingredient, and availability
+-- Used in: get_stock_summary_by_tenant, get_ingredient_stock_levels
+CREATE INDEX IF NOT EXISTS idx_stock_tenant_ingredient_available
+ON stock(tenant_id, ingredient_id, is_available);
+
+-- Index for food_safety_alerts by tenant, status, and severity
+-- Used in: get_alerts_by_severity, get_food_safety_dashboard
+CREATE INDEX IF NOT EXISTS idx_alerts_tenant_status_severity
+ON food_safety_alerts(tenant_id, status, severity);
+
+-- Index for stock_movements by tenant and movement_date (descending)
+-- Used in: get_movements_by_type, get_recent_activity
+CREATE INDEX IF NOT EXISTS idx_movements_tenant_date
+ON stock_movements(tenant_id, movement_date DESC);
+
+-- Index for stock by tenant and ingredient with quantity
+-- Used in: get_live_metrics with stock level calculations
+CREATE INDEX IF NOT EXISTS idx_stock_tenant_quantity
+ON stock(tenant_id, ingredient_id, quantity_current)
+WHERE is_available = true;
+
+-- Index for ingredients by tenant and creation date
+-- Used in: get_recent_activity for recently added ingredients
+CREATE INDEX IF NOT EXISTS idx_ingredients_tenant_created
+ON ingredients(tenant_id, created_at DESC)
+WHERE is_active = true;
+
+-- Composite index for stock movements by type and date
+-- Used in: get_movements_by_type with date filtering
+CREATE INDEX IF NOT EXISTS idx_movements_type_date
+ON stock_movements(tenant_id, movement_type, movement_date DESC);

services/inventory/migrations/apply_indexes.py

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+#!/usr/bin/env python3
+"""
+Script to apply performance indexes to the inventory database
+Usage: python apply_indexes.py
+"""
+
+import asyncio
+import os
+import sys
+from pathlib import Path
+
+# Add parent directory to path to import app modules
+sys.path.insert(0, str(Path(__file__).parent.parent))
+
+from sqlalchemy import text
+from app.core.database import database_manager
+import structlog
+
+logger = structlog.get_logger()
+
+
+async def apply_indexes():
+    """Apply performance indexes from SQL file"""
+    try:
+        # Read the SQL file
+        sql_file = Path(__file__).parent / "001_add_performance_indexes.sql"
+        with open(sql_file, 'r') as f:
+            sql_content = f.read()
+
+        logger.info("Applying performance indexes...")
+
+        # Split by semicolons and execute each statement
+        statements = [s.strip() for s in sql_content.split(';') if s.strip() and not s.strip().startswith('--')]
+
+        async with database_manager.get_session() as session:
+            for statement in statements:
+                if statement:
+                    logger.info(f"Executing: {statement[:100]}...")
+                    await session.execute(text(statement))
+
+            await session.commit()
+            logger.info(f"Successfully applied {len(statements)} index statements")
+
+        return True
+
+    except Exception as e:
+        logger.error(f"Failed to apply indexes: {e}", exc_info=True)
+        return False
+
+
+async def verify_indexes():
+    """Verify that indexes were created"""
+    try:
+        logger.info("Verifying indexes...")
+
+        verify_query = """
+        SELECT
+            schemaname,
+            tablename,
+            indexname,
+            indexdef
+        FROM pg_indexes
+        WHERE indexname LIKE 'idx_%'
+        AND schemaname = 'public'
+        ORDER BY tablename, indexname;
+        """
+
+        async with database_manager.get_session() as session:
+            result = await session.execute(text(verify_query))
+            indexes = result.fetchall()
+
+            logger.info(f"Found {len(indexes)} indexes:")
+            for idx in indexes:
+                logger.info(f"  {idx.tablename}.{idx.indexname}")
+
+        return True
+
+    except Exception as e:
+        logger.error(f"Failed to verify indexes: {e}", exc_info=True)
+        return False
+
+
+async def main():
+    """Main entry point"""
+    logger.info("Starting index migration...")
+
+    # Apply indexes
+    success = await apply_indexes()
+
+    if success:
+        # Verify indexes
+        await verify_indexes()
+        logger.info("Index migration completed successfully")
+    else:
+        logger.error("Index migration failed")
+        sys.exit(1)
+
+    # Close database connections
+    await database_manager.close_connections()
+
+
+if __name__ == "__main__":
+    asyncio.run(main())