#!/bin/bash

# Diagnose and Fix Unhealthy LittleShop Admin Container
echo "=========================================="
echo "LittleShop Admin Container Health Diagnosis"
echo "=========================================="
echo ""

# 1. Check container status and health
echo "1. Container Status:"
docker ps -a --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" | grep -E "NAME|littleshop-admin"
echo ""

# 2. Check health check details
echo "2. Health Check Configuration:"
docker inspect littleshop-admin --format='{{json .State.Health}}' | python3 -m json.tool 2>/dev/null || \
docker inspect littleshop-admin | grep -A 10 '"Health"'
echo ""

# 3. Check if the application is actually responding
echo "3. Testing Application Response:"
echo "   - Testing internal port 8080..."
docker exec littleshop-admin curl -s -o /dev/null -w "HTTP Status: %{http_code}\n" http://localhost:8080/health 2>/dev/null || echo "   Health endpoint not responding"
docker exec littleshop-admin curl -s -o /dev/null -w "HTTP Status: %{http_code}\n" http://localhost:8080/ 2>/dev/null || echo "   Root endpoint not responding"
echo ""

# 4. Check database file and permissions
echo "4. Database Status:"
echo "   Host path: /opt/littleshop/data/"
ls -la /opt/littleshop/data/ 2>/dev/null || echo "   Data directory not found"
echo ""
echo "   Container path: /app/data/"
docker exec littleshop-admin ls -la /app/data/ 2>/dev/null || echo "   Cannot access container data directory"
echo ""

# 5. Check recent logs for startup issues
echo "5. Recent Application Logs:"
docker logs --tail 30 littleshop-admin 2>&1 | grep -E "Now listening on:|fail|ERROR|Exception|Unable|warn" || docker logs --tail 30 littleshop-admin
echo ""

# 6. Check environment variables
echo "6. Key Environment Variables:"
docker inspect littleshop-admin | grep -E "ASPNETCORE_ENVIRONMENT|ConnectionStrings__DefaultConnection" | head -5
echo ""

# 7. Network connectivity check
echo "7. Network Configuration:"
docker inspect littleshop-admin --format='{{range .NetworkSettings.Networks}}{{.NetworkID}} {{end}}' | while read net; do
    echo "   Connected to network: $(docker network ls | grep $net | awk '{print $2}')"
done
echo ""

# 8. Memory and resource usage
echo "8. Resource Usage:"
docker stats --no-stream littleshop-admin 2>/dev/null || echo "   Could not get stats"
echo ""

echo "=========================================="
echo "ATTEMPTING FIXES"
echo "=========================================="
echo ""

# Fix 1: Database permissions
echo "Fix 1: Setting correct database permissions..."
sudo chown -R 1654:1654 /opt/littleshop/data/ 2>/dev/null && echo "   ✓ Permissions fixed" || echo "   ✗ Could not fix permissions"

# Fix 2: Ensure database exists
echo "Fix 2: Checking database file..."
if [ -f "/opt/littleshop/data/littleshop-production.db" ]; then
    echo "   ✓ Database file exists"
    SIZE=$(stat -c%s "/opt/littleshop/data/littleshop-production.db" 2>/dev/null)
    echo "   Database size: $SIZE bytes"
    if [ "$SIZE" -eq 0 ]; then
        echo "   ⚠ WARNING: Database file is empty!"
        echo "   The container should recreate it on restart"
    fi
else
    echo "   ✗ Database file missing - will be created on container restart"
fi

# Fix 3: Connect to correct network
echo "Fix 3: Ensuring network connectivity..."
docker network connect littleshop-network littleshop-admin 2>/dev/null && echo "   ✓ Connected to littleshop-network" || echo "   Already connected or network doesn't exist"

# Fix 4: Restart with proper environment
echo "Fix 4: Restarting container with full configuration..."
docker stop littleshop-admin
docker rm littleshop-admin

# Recreate with all necessary environment variables
docker run -d \
  --name littleshop-admin \
  --restart unless-stopped \
  --network littleshop-network \
  -p 5000:8080 \
  -v /opt/littleshop/data:/app/data \
  -v /opt/littleshop/logs:/app/logs \
  -v /opt/littleshop/uploads:/app/wwwroot/uploads \
  -e ASPNETCORE_ENVIRONMENT=Production \
  -e ASPNETCORE_URLS="http://+:8080" \
  -e ConnectionStrings__DefaultConnection="Data Source=/app/data/littleshop-production.db" \
  -e SilverPay__BaseUrl="http://silverpay-api:8000" \
  -e SilverPay__ApiKey="7703aa7a62fa4b40a87e9cfd867f5407147515c0986116ea54fc00c0a0bc30d8" \
  -e SilverPay__WebhookSecret="Thefa1r1esd1d1twebhooks2024" \
  -e SilverPay__DefaultWebhookUrl="https://admin.thebankofdebbie.giize.com/api/orders/payments/webhook" \
  -e JWT_SECRET_KEY="ThisIsAVeryLongSecretKeyForJWTTokenGeneration123456789!" \
  --health-cmd="curl -f http://localhost:8080/ || exit 1" \
  --health-interval=30s \
  --health-timeout=10s \
  --health-retries=3 \
  littleshop:latest

echo "   Waiting for container to start..."
sleep 10

echo ""
echo "=========================================="
echo "POST-FIX STATUS"
echo "=========================================="
echo ""

# Final status check
echo "Container Status:"
docker ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" | grep -E "NAME|littleshop-admin"
echo ""

echo "Application Logs (after restart):"
docker logs --tail 20 littleshop-admin
echo ""

echo "Testing Login Page:"
curl -s -o /dev/null -w "HTTP Status Code: %{http_code}\n" http://localhost:5000/Admin/Account/Login || echo "Not responding on port 5000"
echo ""

echo "=========================================="
echo "DIAGNOSIS COMPLETE"
echo ""
echo "If still showing unhealthy:"
echo "1. Check if port 5000 is already in use: netstat -tulpn | grep 5000"
echo "2. Check firewall: ufw status | grep 5000"
echo "3. Rebuild image from source: cd /opt/LittleShop && docker build -t littleshop:latest ."
echo "4. Check disk space: df -h /"
echo "=========================================="