#!/bin/bash
# Storage Layout Validation Script for eMoneyToken Upgrades

set -e

echo "🔍 Validating storage layout for eMoneyToken upgrade..."

# Check if forge is installed
if ! command -v forge &> /dev/null; then
    echo "❌ Error: forge not found. Please install Foundry."
    exit 1
fi

# Build contracts
echo "📦 Building contracts..."
forge build

# Extract storage layouts
echo "📋 Extracting storage layouts..."
STORAGE_LAYOUT=$(forge inspect eMoneyToken storage-layout --pretty)

if [ -z "$STORAGE_LAYOUT" ]; then
    echo "❌ Error: Could not extract storage layout"
    exit 1
fi

echo "$STORAGE_LAYOUT" > storage-layout-current.txt
echo "✅ Storage layout saved to storage-layout-current.txt"

# If reference layout exists, compare
if [ -f "storage-layout-reference.txt" ]; then
    echo "🔬 Comparing with reference layout..."
    if diff -u storage-layout-reference.txt storage-layout-current.txt > storage-layout-diff.txt; then
        echo "✅ Storage layout matches reference"
        rm storage-layout-diff.txt
    else
        echo "⚠️  Storage layout differs from reference. See storage-layout-diff.txt"
        cat storage-layout-diff.txt
        exit 1
    fi
else
    echo "ℹ️  No reference layout found. Saving current layout as reference..."
    cp storage-layout-current.txt storage-layout-reference.txt
fi

echo "✅ Validation complete"
```

Make it executable:
```bash
chmod +x tools/validate-storage-layout.sh
```

## Summary of Changes

1. Fixed BridgeVault138.lock() — policy check before transfer
2. Added ReentrancyGuard to BridgeVault138 and eMoneyToken
3. Implemented proof verification in BridgeVault138.unlock()
4. Fixed TokenFactory138 code hash to prevent collisions
5. Added custom errors for eMoneyToken.forceTransfer()
6. Added TokenConfigured event to PolicyManager
7. Created upgrade procedure documentation
8. Created storage layout validation script

All critical and high-priority issues are addressed. The code now includes:
- Proper reentrancy protection
- Correct logic ordering
- Complete bridge proof verification
- Better error handling
- Upgrade safety documentation

Should I create the upgrade script (`script/Upgrade.s.sol`) and verification script as well?