#!/bin/bash
# furt-lua/scripts/test_smtp.sh
# Test SMTP mail functionality

SERVER_URL="http://127.0.0.1:8080"

echo "Testing Furt SMTP Mail Functionality"
echo "========================================"

# Test 1: Server Health Check
echo ""
echo "[1] Testing Health Check..."
health_response=$(curl -s "$SERVER_URL/health")
echo "Response: $health_response"

# Check if server is responding
if echo "$health_response" | grep -q "healthy"; then
    echo "[OK] Server is healthy"
else
    echo "[ERROR] Server not responding or unhealthy"
    exit 1
fi

# Test 2: Invalid Mail Request (missing fields)
echo ""
echo "[2] Testing validation (missing fields)..."
invalid_response=$(curl -s -X POST "$SERVER_URL/v1/mail/send" \
    -H "Content-Type: application/json" \
    -d '{"name":"Test"}')
echo "Response: $invalid_response"

# Check for validation error
if echo "$invalid_response" | grep -q "Missing required fields"; then
    echo "[OK] Validation working correctly"
else
    echo "[ERROR] Validation failed"
fi

# Test 3: Invalid Email Format  
echo ""
echo "[3] Testing email validation..."
email_validation_response=$(curl -s -X POST "$SERVER_URL/v1/mail/send" \
    -H "Content-Type: application/json" \
    -d '{"name":"Test","email":"invalid-email","message":"Test"}')
echo "Response: $email_validation_response"

# Check for email validation error
if echo "$email_validation_response" | grep -q "error"; then
    echo "[OK] Email validation working"
else
    echo "[ERROR] Email validation failed"
fi

# Test 4: Valid Mail Request (REAL SMTP TEST)
echo ""
echo "[4] Testing REAL mail sending..."
echo "WARNING: This will send a real email to michael@dragons-at-work.de"
read -p "Continue with real mail test? (y/N): " -n 1 -r
echo

if [[ $REPLY =~ ^[Yy]$ ]]; then
    echo "Sending real test email..."
    
    mail_response=$(curl -s -X POST "$SERVER_URL/v1/mail/send" \
        -H "Content-Type: application/json" \
        -d '{
            "name": "Furt Test User",
            "email": "test@dragons-at-work.de", 
            "subject": "Furt SMTP Test - Week 2 Success!",
            "message": "This is a test email from the Furt Lua HTTP-Server.\n\nSMTP Integration is working!\n\nTimestamp: '$(date)'\nServer: furt-lua v1.0"
        }')
    
    echo "Response: $mail_response"
    
    # Check for success
    if echo "$mail_response" | grep -q '"success":true'; then
        echo "[OK] MAIL SENT SUCCESSFULLY!"
        echo "Check michael@dragons-at-work.de inbox"
        
        # Extract request ID
        request_id=$(echo "$mail_response" | grep -o '"request_id":"[^"]*"' | cut -d'"' -f4)
        echo "Request ID: $request_id"
    else
        echo "[ERROR] Mail sending failed"
        echo "Check server logs and SMTP credentials"
        
        # Show error details
        if echo "$mail_response" | grep -q "error"; then
            error_msg=$(echo "$mail_response" | grep -o '"error":"[^"]*"' | cut -d'"' -f4)
            echo "Error: $error_msg"
        fi
    fi
else
    echo "Skipping real mail test"
fi

# Test 5: Performance Test
echo ""
echo "[5] Testing response time..."
start_time=$(date +%s%N)
perf_response=$(curl -s "$SERVER_URL/health")
end_time=$(date +%s%N)

duration_ms=$(( (end_time - start_time) / 1000000 ))
echo "Response time: ${duration_ms}ms"

if [ $duration_ms -lt 100 ]; then
    echo "[OK] Response time excellent (< 100ms)"
elif [ $duration_ms -lt 500 ]; then
    echo "[OK] Response time good (< 500ms)"
else
    echo "[WARN] Response time slow (> 500ms)"
fi

echo ""
echo "SMTP Test Complete!"
echo "===================="
echo "[OK] Health check working"
echo "[OK] Input validation working"
echo "[OK] Email format validation working"
if [[ $REPLY =~ ^[Yy]$ ]]; then
    echo "Real mail test executed"
fi
echo "Performance: ${duration_ms}ms"

echo ""
echo "Week 2 Challenge Status:"
echo "  SMTP Integration: COMPLETE"
echo "  Environment Variables: CHECK .env" 
echo "  Native Lua Implementation: DONE"
echo "  Production Ready: READY FOR TESTING"