V2GDecoderC/TODO.md

V2GDecoderC C# Porting Task List

📋 Execution Plan

Phase 1: Setup & Analysis ✅

• Create REPORT.md with comprehensive C code analysis
• Create TODO.md with execution plan

Phase 2: .NET Core/6+ Implementation

• Create csharp folder structure
• Create csharp\dotnet subfolder
• Port core EXI codec to .NET
• Port V2G protocol implementations (ISO1, ISO2, DIN)
• Create test harness for .NET version
• Test with test1.exi → test1.xml → test1.exi roundtrip
• Validate roundtrip integrity (original vs final)
• Git commit .NET version

Phase 3: .NET Framework 4.8 Implementation

• Create csharp\dotnetfx subfolder
• Port .NET version to .NET Framework 4.8
• Adjust for Framework-specific differences
• Create test harness for .NET FX version
• Test with test1.exi → test1.xml → test1.exi roundtrip
• Validate roundtrip integrity (original vs final)
• Git commit .NET Framework version

Testing Strategy

Original: test1.exi
Step 1: Decode test1.exi → test1.xml
Step 2: Encode test1.xml → test1_new.exi  
Step 3: Binary compare test1.exi ≟ test1_new.exi
Result: PASS/FAIL validation

Key Porting Considerations

• Memory Management: C static allocation → C# managed memory
• Error Handling: C return codes → C# exceptions
• String Handling: C char arrays → C# string/byte[]
• Buffer Operations: C memcpy → C# Array.Copy/Buffer.BlockCopy
• Platform Differences: Endianness, type sizes
• Security: Address C vulnerabilities in C# implementation

Success Criteria

1. ✅ Functional parity with C version
2. ✅ Test roundtrip validation passes
3. ✅ Clean separation of .NET/.NET FX versions
4. ✅ Git commits for each major milestone
5. ✅ Improved memory safety vs C version