🦾Technical Design

Smart Contracts

• DuelToken: ERC20 with mint (owner) and burn functions. Symbol: DUEL.

• CryptoPriceDuelArena: Core logic.

  • Inheritance: Ownable, uses SafeERC20.

  • Integrations: UniswapV2Router, Chainlink PriceOracle, IERC20 ($DUEL, USDC).

  • Data Structures:

    • Duel Struct: Config (asset, times, price, etc.), Status (resolved, winner), Pots (totals, effective losing).

    • Mappings: Oracles, duels, per-user stakes.

  • Constants: MIN_STAKE = 1000.

  • Events: DuelCreated, Staked, DuelResolved, Payout.

Key Functions

• createDuel: Validates inputs, fetches price, optional stake.

• stakeOnDuel: Transfers tokens, updates pots (if active).

• resolveDuel: Checks time, determines winner, applies fees.

• claimWinnings: Verifies eligibility, calculates/transfers payout.

• Admin: Update marketing wallet, emergency withdraw.

Security Measures

• Oracle Integrity: Chainlink's decentralized feeds.

• Transfer Safety: SafeERC20 prevents failures.

• Access Control: OnlyOwner for sensitive ops.

• Validations: Price >0, duration >0, percentage 1-100.

• Audits: Planned for mainnet; code follows best practices.

Deployment on Ethereum; compatible with L2s for scalability.

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