SettlementEngine

Settles Dual Investment positions by reading oracle prices at/near expiry, calculating the winning side, executing payout in the correct pToken, and burning the position.

Responsibilities

• Enforce settlement window after expiry.

• Fetch or cache settlement price (SimplePriceOracle).

• Compute winning pToken based on strike and direction;

• payout 1:1 notional in winning cToken units.

• Withdraw/mint directly where possible; else withdraw from source and swap to target before minting.

Key Functions

• settlePosition(tokenId, user)

  • Validates window, balance; gets price; determines winning cToken; burns position; executes payout via VaultExecutor.

• batchSettlePositions(tokenIds, users) best‑effort loop using internal helper to continue on failures.

• Views: canSettlePosition(tokenId), getSettlementInfo(tokenId).

• Admin: setSettlementWindow(seconds), emergencySetSettlementPrice(tokenId, price).

Payout Path

1. Try withdrawUnderlyingFromProtocol(payoutCToken, underlyingOutRequested); if >0, mintCTokensTo(payoutCToken, user, withdrawn).

2. Else withdraw from source (position.cTokenIn), swap to payout underlying, then mintCTokensTo the user.