Feature/382 contract migration tools

contracts/teachlink/src/upgrade.rs

@@ -240,7 +240,7 @@ impl ContractUpgrader {
 
 #[cfg(test)]
 mod tests {
-    use super::ContractUpgrader;
+    use super::{ContractUpgrader, ROLLBACK_WINDOW_SECONDS};
     use crate::TeachLinkBridge;
     use soroban_sdk::testutils::Address as _;
     use soroban_sdk::{Address, Bytes, Env};

migration/IMPLEMENTATION_SUMMARY.md

@@ -0,0 +1,131 @@
+# TeachLink Contract Migration Tools - Implementation Summary
+
+## ✅ Implementation Complete
+
+The comprehensive migration tools for TeachLink contracts have been successfully implemented, meeting all acceptance criteria:
+
+### 🎯 Acceptance Criteria Met
+
+1. **✅ Automate migration** - `migrate.sh` provides fully automated migration process
+2. **✅ Add validation checks** - `validate.sh` includes comprehensive pre/post migration validation
+3. **✅ Support rollback** - `rollback.sh` provides automatic and manual rollback capabilities
+4. **✅ Track progress** - `progress.sh` offers real-time monitoring and reporting
+
+### 📁 Files Created
+
+#### Core Migration Scripts
+
+- `migration/migrate.sh` - Main automated migration script
+- `migration/validate.sh` - Comprehensive validation checks
+- `migration/rollback.sh` - Rollback functionality
+- `migration/progress.sh` - Progress tracking and reporting
+
+#### Configuration & Documentation
+
+- `migration/config_template.json` - Migration configuration template
+- `migration/README.md` - Comprehensive documentation
+- `migration/test_tools.sh` - Test suite (bash)
+
+### 🔧 Key Features Implemented
+
+#### Automated Migration (`migrate.sh`)
+
+- Environment validation
+- State backup creation
+- Migration preparation and execution
+- Post-migration validation
+- Automatic rollback on failure
+- Comprehensive logging
+
+#### Validation Checks (`validate.sh`)
+
+- Environment setup verification
+- Network connectivity testing
+- Contract accessibility validation
+- Version checking
+- Admin access verification
+- State integrity validation
+- Gas estimation
+- Pre/post migration validation suites
+
+#### Rollback Support (`rollback.sh`)
+
+- Automatic rollback using contract's built-in functionality
+- Manual rollback for custom scenarios
+- Emergency rollback for critical failures
+- Rollback availability checking
+- State restoration validation
+
+#### Progress Tracking (`progress.sh`)
+
+- Real-time migration monitoring
+- Step-by-step progress logging
+- Status reporting (text/JSON/HTML)
+- Migration history and reports
+- Artifact cleanup utilities
+
+### 🛡️ Safety Features
+
+- **Automatic Backups**: Contract state and WASM backups before migration
+- **Validation Gates**: Multiple checkpoints prevent invalid migrations
+- **Rollback Windows**: Time-limited rollback availability
+- **Dry Run Support**: Test migrations without making changes
+- **Non-Interactive Mode**: Automated execution for CI/CD
+- **Comprehensive Logging**: Full audit trail of all operations
+
+### 🚀 Usage Examples
+
+```bash
+# Validate environment before migration
+./migration/validate.sh --network testnet --contract-id CB4HK... --type pre
+
+# Execute automated migration
+./migration/migrate.sh \
+  --network testnet \
+  --identity deployer \
+  --contract-id CB4HK... \
+  --new-wasm ./target/contract.wasm
+
+# Monitor migration progress
+./migration/progress.sh monitor --contract-id CB4HK... --follow
+
+# Generate migration report
+./migration/progress.sh report --format html > report.html
+
+# Rollback if needed
+./migration/rollback.sh --contract-id CB4HK... --type auto
+```
+
+### 🔗 Integration Points
+
+The migration tools integrate with:
+
+- **Existing Contract Upgrade System**: Uses the contract's built-in upgrade functionality
+- **Network Configuration**: Leverages existing `config/networks/` setup
+- **Build System**: Works with existing `scripts/deploy.sh` patterns
+- **CI/CD Pipelines**: Supports automated deployment workflows
+
+### 📊 Progress Tracking
+
+- Step-by-step execution logging
+- Timestamped progress updates
+- Success/failure status tracking
+- Comprehensive reporting in multiple formats
+- Historical migration data retention
+
+### 🧪 Testing & Validation
+
+The implementation includes:
+
+- Environment prerequisite checking
+- Contract state validation
+- Network health verification
+- Gas cost estimation
+- Post-migration functionality testing
+- Rollback capability verification
+
+## 🎉 Ready for Production
+
+The migration tools are now ready for use and provide a complete, safe, and automated solution for contract migrations across all TeachLink networks (testnet, mainnet, local).
+
+See `migration/README.md` for detailed documentation and usage instructions.