Main

🧭 Main.sol

The Main contract acts as the central configuration hub of the Scall.io protocol. It manages key system-wide parameters, connects to other core contracts, and provides administrative control to the protocol owner.

This contract is the backbone that maintains the integrity and coordination of different modules including:

• The CollateralPool

• The MarketPools (BTC/USDC, ETH/USDC, etc.)

• Protocol-wide variables like liquidation thresholds, penalty rates, and fees

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🧩 What It Does

• Stores and exposes global protocol settings

• Links new MarketPools to the system

• Defines liquidation and rent behavior across all pools

• Maintains reference to the Collateral token and CollateralPool

• Restricts sensitive modifications to the owner (DAO-controlled or multisig)

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🛠️ Public & External Functions

getCollateralToken() → address

Returns the address of the token used as collateral across the protocol (e.g., USDC).

getCollateralTokenDecimals() → uint256

Returns the number of decimals used by the collateral token.

getCollateralPool() → address

Returns the address of the deployed CollateralPool contract.

getLiquidationThreshold() → uint256

Returns the minimum amount of time (in seconds) required for a contract to become eligible for liquidation. Default: 172800 seconds (≈ 2 days of unpaid rent).

getLiquidationPenalty() → uint256

Returns the penalty rate applied to undercollateralized users when liquidated. Default: 12% (represented as 12e16).

getMinCollateral() → uint256

Returns the minimum amount of collateral (in seconds of rent) required to open or maintain a position. Default: 604800 seconds (1 week).

getFees() → uint256

Returns the protocol fee rate.

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🔄 Internal Parameters

Parameter	Description	Default Value
_LIQUIDATIONTHRESHOLD	Max duration without rent before liquidation	172800 seconds (2d)
_LIQUIDATIONPENALTY	Penalty rate on remaining collateral when liquidated	12% (12e16)
_MINCOLLATERAL	Minimum rent coverage required to open/maintain	604800 seconds (1w)
_PROTOCOLFEES	Optional fee taken by the protocol	0%

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📌 Summary

Feature	Role
Global Config	Defines all liquidation and rent rules
Contract Registry	Links and tracks all MarketPools
Admin-Only Control	Centralizes key governance operations
View Functions	Expose protocol parameters to users & dApps