Files
mev-beta/orig/pkg/scanner/decimal_fix.go
Administrator 803de231ba feat: create v2-prep branch with comprehensive planning
Restructured project for V2 refactor:

**Structure Changes:**
- Moved all V1 code to orig/ folder (preserved with git mv)
- Created docs/planning/ directory
- Added orig/README_V1.md explaining V1 preservation

**Planning Documents:**
- 00_V2_MASTER_PLAN.md: Complete architecture overview
  - Executive summary of critical V1 issues
  - High-level component architecture diagrams
  - 5-phase implementation roadmap
  - Success metrics and risk mitigation

- 07_TASK_BREAKDOWN.md: Atomic task breakdown
  - 99+ hours of detailed tasks
  - Every task < 2 hours (atomic)
  - Clear dependencies and success criteria
  - Organized by implementation phase

**V2 Key Improvements:**
- Per-exchange parsers (factory pattern)
- Multi-layer strict validation
- Multi-index pool cache
- Background validation pipeline
- Comprehensive observability

**Critical Issues Addressed:**
- Zero address tokens (strict validation + cache enrichment)
- Parsing accuracy (protocol-specific parsers)
- No audit trail (background validation channel)
- Inefficient lookups (multi-index cache)
- Stats disconnection (event-driven metrics)

Next Steps:
1. Review planning documents
2. Begin Phase 1: Foundation (P1-001 through P1-010)
3. Implement parsers in Phase 2
4. Build cache system in Phase 3
5. Add validation pipeline in Phase 4
6. Migrate and test in Phase 5

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-11-10 10:14:26 +01:00

42 lines
1.2 KiB
Go

package scanner
import (
"math/big"
"github.com/ethereum/go-ethereum/common"
)
// TokenDecimalMap provides decimal information for common tokens
var TokenDecimalMap = map[common.Address]int{
common.HexToAddress("0x82aF49447D8a07e3bd95BD0d56f35241523fBab1"): 18, // WETH
common.HexToAddress("0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8"): 6, // USDC
common.HexToAddress("0xFd086bC7CD5C481DCC9C85ebE478A1C0b69FCbb9"): 6, // USDT
common.HexToAddress("0x2f2a2543B76A4166549F7aaB2e75Bef0aefC5B0f"): 8, // WBTC
common.HexToAddress("0x912CE59144191C1204E64559FE8253a0e49E6548"): 18, // ARB
}
// GetTokenDecimals returns decimals for a token (defaults to 18)
func GetTokenDecimals(token common.Address) int {
if decimals, ok := TokenDecimalMap[token]; ok {
return decimals
}
return 18
}
// NormalizeToEther converts token amount to ether equivalent considering decimals
func NormalizeToEther(amount *big.Int, token common.Address) *big.Float {
if amount == nil {
return big.NewFloat(0)
}
decimals := GetTokenDecimals(token)
divisor := new(big.Int).Exp(big.NewInt(10), big.NewInt(int64(decimals)), nil)
result := new(big.Float).Quo(
new(big.Float).SetInt(amount),
new(big.Float).SetInt(divisor),
)
return result
}