Stablecoin Vault Contract Implementation#1
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- Define contract owner and various error codes - Set maximum and minimum price limits - Establish collateral ratio and stability fee limits
- Define collateral ratio, liquidation ratio, stability fee, and initialization flags - Add mappings for vaults, liquidators, and price oracles
…t contract - Implement `is-valid-price` to check price within allowed range - Implement `is-valid-ratio` to check ratio within allowed range - Implement `is-valid-fee` to check fee within allowed range
…oin vault contract - Implement `initialize` to set up the contract with initial BTC price - Implement `create-vault` to allow users to create vaults by depositing collateral
…blecoin vault contract - Implement `mint-stablecoin` to allow users to mint stablecoins against their collateral - Implement `repay-debt` to allow users to repay their debt and reduce their vault's debt balance
…ntract - Implement `withdraw-collateral` to allow users to withdraw collateral while maintaining the minimum collateral ratio
…blecoin vault contract - Implement `liquidate` to allow authorized liquidators to liquidate vaults below the liquidation ratio
- Implement `update-price` to allow authorized oracles to update the BTC price
…s in stablecoin vault contract - Implement `set-minimum-collateral-ratio` to allow the contract owner to update the minimum collateral ratio - Implement `set-liquidation-ratio` to allow the contract owner to update the liquidation ratio
…n stablecoin vault contract - Implement `set-stability-fee` to allow the contract owner to update the stability fee - Implement `add-liquidator` to allow the contract owner to add authorized liquidators - Implement `remove-liquidator` to allow the contract owner to remove authorized liquidators
…lt contract - Implement `add-oracle` to allow the contract owner to add authorized price oracles - Implement `remove-oracle` to allow the contract owner to remove authorized price oracles
…n vault contract - Implement `trigger-emergency-shutdown` to allow the contract owner to initiate an emergency shutdown
…atio in stablecoin vault contract - Implement `get-vault` to retrieve vault details for a given owner - Implement `get-collateral-ratio` to calculate and return the collateral ratio for a given owner
…es, and retrieving stability parameters in stablecoin vault contract - Implement `is-authorized-liquidator` to check if an address is an authorized liquidator - Implement `is-authorized-oracle` to check if an address is an authorized oracle - Implement `get-stability-parameters` to retrieve current stability parameters of the contract
…chnical Specification documentation
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Overview
This PR implements a comprehensive stablecoin vault system that allows users to create collateralized debt positions (CDPs) using STX as collateral. The implementation includes core functionality, governance controls, and security measures.
Changes
Core Contract Implementation
Constants and Error Codes
Data Structure
Validation Functions
is-valid-price: Price range validationis-valid-ratio: Collateral ratio validationis-valid-fee: Fee validationCore Functions
Oracle Integration
Governance Controls
Read-Only Functions
Documentation
Security Considerations
Deployment Steps
Future Improvements
Checklist