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https://github.com/0glabs/0g-chain.git
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88d4868316
* Simplify strategies to lend and savings * Add hard and savings keepers * Add ctx to strategy interface, fill in lend strategy * Rename lend strategy to hard * Fix hard deposit query, fix withdraw bank send * Fix misleading borrow instead of withdraw for hard * Remove liquidateall strategy method * Withdraw tests * Add hard gs to testutil suite * Update withdraw tests with working hard strategy, clean strategy interface methods * Check allowed denom for strategy * Update GetVaultTotalValue doc note * Update error wrap message for unsupported denom * Remove unnecessary viewvault keeper * Withdraw amount from account value, not supplied value * Test value > supplied withdraw * Use dec when dividing for withdrawAmountPercent * Use the correct store prefix for vault shares * Update swap references to earn * Simplify vault shares, use a single share for all coins per address
47 lines
1.5 KiB
Go
47 lines
1.5 KiB
Go
package keeper
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import (
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"fmt"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/kava-labs/kava/x/earn/types"
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)
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// Strategy is the interface that must be implemented by a strategy.
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type Strategy interface {
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// GetStrategyType returns the strategy type
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GetStrategyType() types.StrategyType
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// IsDenomSupported returns true if the denom is supported for this
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// strategy. For example, the hard strategy supports "usdx".
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IsDenomSupported(string) bool
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// GetEstimatedTotalAssets returns the estimated total assets denominated in
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// GetDenom() of this strategy. This is the value if the strategy were to
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// liquidate all assets.
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//
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// **Note:** This may not reflect the true value as it may become outdated
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// from market changes.
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GetEstimatedTotalAssets(ctx sdk.Context, denom string) (sdk.Coin, error)
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// Deposit the specified amount of coins into this strategy. The amount
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// must be denominated in GetDenom().
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Deposit(ctx sdk.Context, amount sdk.Coin) error
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// Withdraw the specified amount of coins from this strategy. The amount
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// must be denominated in GetDenom().
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Withdraw(ctx sdk.Context, amount sdk.Coin) error
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}
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// GetStrategy returns the strategy for the given strategy type.
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func (k *Keeper) GetStrategy(strategyType types.StrategyType) (Strategy, error) {
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switch strategyType {
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case types.STRATEGY_TYPE_HARD:
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return (*HardStrategy)(k), nil
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case types.STRATEGY_TYPE_SAVINGS:
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panic("unimplemented")
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default:
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return nil, fmt.Errorf("unknown strategy type: %s", strategyType)
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}
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}
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