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feat(stablecoin): add collateral deposits

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This commit is contained in:
Ricardo Guilherme Schmidt
2026-07-03 09:42:55 -03:00
parent 4a6192d84f
commit 2d486ed033
7 changed files with 513 additions and 4 deletions
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programs/stablecoin/core/src/lib.rs
+16
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@@ -34,6 +34,22 @@ pub enum Instruction {
/// Amount of collateral tokens to deposit into the position vault.
collateral_amount: u128,
},
/// Deposit additional collateral tokens into an existing position vault.
///
/// Required accounts (4):
/// - Owner account (authorized; binds caller-as-owner via position PDA re-derivation)
/// - Position account (initialized, owned by `self_program_id`)
/// - Position vault token holding (address must match
/// `compute_position_vault_pda(self_program_id, position_id)`)
/// - User's source token holding for the collateral (authorized, initialized, owned by the
/// same Token Program as the vault, with `TokenHolding.definition_id ==
/// Position.collateral_definition_id`)
///
/// No collateralization check is needed because this instruction never increases debt.
DepositCollateral {
/// Amount of collateral tokens to deposit into the position vault.
amount: u128,
},
/// Withdraw `amount` collateral tokens from a position back to a user-controlled holding.
///
/// Required accounts (4):