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Remove
stake_increment_share, add Fees type for Edfis NEW, rename…
… `Position` to `ECDPPosition`. Remove `stake_increment_share`, add `Fees` type for Edfis NEW, rename `Position` to `ECDPPosition`.
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| // بِسْمِ اللَّهِ الرَّحْمَنِ الرَّحِيم | ||
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| // This file is part of Setheum. | ||
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| // Copyright (C) 2019-Present Setheum Labs. | ||
| // SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0 | ||
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| // This program is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
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| // This program is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
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| // You should have received a copy of the GNU General Public License | ||
| // along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
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| use frame_support::{ensure, traits::Get}; | ||
| use parity_scale_codec::{Decode, Encode}; | ||
| use scale_info::TypeInfo; | ||
| #[cfg(feature = "std")] | ||
| use serde::{Deserialize, Serialize}; | ||
| use sp_core::H160; | ||
| use sp_runtime::{DispatchError, DispatchResult, RuntimeDebug}; | ||
| use sp_std::{cmp::PartialEq, prelude::*, result::Result}; | ||
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| #[derive(RuntimeDebug, Encode, Decode, Clone, Copy, PartialEq, Eq, TypeInfo)] | ||
| pub enum SwapLimit<Balance> { | ||
| /// use exact amount supply amount to swap. (exact_supply_amount, minimum_target_amount) | ||
| ExactSupply(Balance, Balance), | ||
| /// swap to get exact amount target. (maximum_supply_amount, exact_target_amount) | ||
| ExactTarget(Balance, Balance), | ||
| } | ||
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| pub trait SwapManager<AccountId, Balance, CurrencyId> { | ||
| fn get_liquidity_pool( | ||
| currency_id_a: CurrencyId, | ||
| currency_id_b: CurrencyId | ||
| ) -> (Balance, Balance); | ||
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| fn get_liquidity_token_address( | ||
| currency_id_a: CurrencyId, | ||
| currency_id_b: CurrencyId | ||
| ) -> Option<H160>; | ||
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| fn get_swap_amount( | ||
| path: &[CurrencyId], | ||
| limit: SwapLimit<Balance> | ||
| ) -> Option<(Balance, Balance)>; | ||
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| fn get_best_price_swap_path( | ||
| supply_currency_id: CurrencyId, | ||
| target_currency_id: CurrencyId, | ||
| limit: SwapLimit<Balance>, | ||
| alternative_path_joint_list: Vec<Vec<CurrencyId>>, | ||
| ) -> Option<(Vec<CurrencyId>, Balance, Balance)>; | ||
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| fn swap_with_specific_path( | ||
| who: &AccountId, | ||
| path: &[CurrencyId], | ||
| limit: SwapLimit<Balance>, | ||
| ) -> Result<(Balance, Balance), DispatchError>; | ||
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| fn add_liquidity( | ||
| who: &AccountId, | ||
| currency_id_a: CurrencyId, | ||
| currency_id_b: CurrencyId, | ||
| max_amount_a: Balance, | ||
| max_amount_b: Balance, | ||
| min_share_increment: Balance, | ||
| ) -> Result<(Balance, Balance, Balance), DispatchError>; | ||
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| fn remove_liquidity( | ||
| who: &AccountId, | ||
| currency_id_a: CurrencyId, | ||
| currency_id_b: CurrencyId, | ||
| remove_share: Balance, | ||
| min_withdrawn_a: Balance, | ||
| min_withdrawn_b: Balance, | ||
| by_unstake: bool, | ||
| ) -> Result<(Balance, Balance), DispatchError>; | ||
| } | ||
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| pub trait Swap<AccountId, Balance, CurrencyId> | ||
| where | ||
| CurrencyId: Clone, | ||
| { | ||
| fn get_swap_amount( | ||
| supply_currency_id: CurrencyId, | ||
| target_currency_id: CurrencyId, | ||
| limit: SwapLimit<Balance>, | ||
| ) -> Option<(Balance, Balance)>; | ||
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| fn swap( | ||
| who: &AccountId, | ||
| supply_currency_id: CurrencyId, | ||
| target_currency_id: CurrencyId, | ||
| limit: SwapLimit<Balance>, | ||
| ) -> Result<(Balance, Balance), DispatchError>; | ||
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| fn swap_by_path( | ||
| who: &AccountId, | ||
| swap_path: &[CurrencyId], | ||
| limit: SwapLimit<Balance>, | ||
| ) -> Result<(Balance, Balance), DispatchError>; | ||
| } | ||
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| #[derive(Eq, PartialEq, RuntimeDebug)] | ||
| pub enum SwapError { | ||
| CannotSwap, | ||
| } | ||
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| impl Into<DispatchError> for SwapError { | ||
| fn into(self) -> DispatchError { | ||
| DispatchError::Other("Cannot swap") | ||
| } | ||
| } | ||
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| // Dex wrapper of Swap implementation | ||
| pub struct SpecificJointsSwap<Dex, Joints>(sp_std::marker::PhantomData<(Dex, Joints)>); | ||
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| impl<AccountId, Balance, CurrencyId, Dex, Joints> Swap<AccountId, Balance, CurrencyId> | ||
| for SpecificJointsSwap<Dex, Joints> | ||
| where | ||
| Dex: SwapManager<AccountId, Balance, CurrencyId>, | ||
| Joints: Get<Vec<Vec<CurrencyId>>>, | ||
| Balance: Clone, | ||
| CurrencyId: Clone, | ||
| { | ||
| fn get_swap_amount( | ||
| supply_currency_id: CurrencyId, | ||
| target_currency_id: CurrencyId, | ||
| limit: SwapLimit<Balance>, | ||
| ) -> Option<(Balance, Balance)> { | ||
| <Dex as SwapManager<AccountId, Balance, CurrencyId>>::get_best_price_swap_path( | ||
| supply_currency_id, | ||
| target_currency_id, | ||
| limit, | ||
| Joints::get(), | ||
| ) | ||
| .map(|(_, supply_amount, target_amount)| (supply_amount, target_amount)) | ||
| } | ||
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| fn swap( | ||
| who: &AccountId, | ||
| supply_currency_id: CurrencyId, | ||
| target_currency_id: CurrencyId, | ||
| limit: SwapLimit<Balance>, | ||
| ) -> sp_std::result::Result<(Balance, Balance), DispatchError> { | ||
| let path = <Dex as SwapManager<AccountId, Balance, CurrencyId>>::get_best_price_swap_path( | ||
| supply_currency_id, | ||
| target_currency_id, | ||
| limit.clone(), | ||
| Joints::get(), | ||
| ) | ||
| .ok_or_else(|| Into::<DispatchError>::into(SwapError::CannotSwap))? | ||
| .0; | ||
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| <Dex as SwapManager<AccountId, Balance, CurrencyId>>::swap_with_specific_path(who, &path, limit) | ||
| } | ||
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| fn swap_by_path( | ||
| who: &AccountId, | ||
| swap_path: &[CurrencyId], | ||
| limit: SwapLimit<Balance>, | ||
| ) -> Result<(Balance, Balance), DispatchError> { | ||
| <Dex as SwapManager<AccountId, Balance, CurrencyId>>::swap_with_specific_path(who, swap_path, limit) | ||
| } | ||
| } | ||
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| #[cfg(feature = "std")] | ||
| impl<AccountId, CurrencyId, Balance> SwapManager<AccountId, Balance, CurrencyId> for () | ||
| where | ||
| Balance: Default, | ||
| { | ||
| fn get_liquidity_pool(_currency_id_a: CurrencyId, _currency_id_b: CurrencyId) -> (Balance, Balance) { | ||
| Default::default() | ||
| } | ||
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| fn get_liquidity_token_address(_currency_id_a: CurrencyId, _currency_id_b: CurrencyId) -> Option<H160> { | ||
| Some(Default::default()) | ||
| } | ||
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| fn get_swap_amount(_path: &[CurrencyId], _limit: SwapLimit<Balance>) -> Option<(Balance, Balance)> { | ||
| Some(Default::default()) | ||
| } | ||
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| fn get_best_price_swap_path( | ||
| _supply_currency_id: CurrencyId, | ||
| _target_currency_id: CurrencyId, | ||
| _limit: SwapLimit<Balance>, | ||
| _alternative_path_joint_list: Vec<Vec<CurrencyId>>, | ||
| ) -> Option<(Vec<CurrencyId>, Balance, Balance)> { | ||
| Some(Default::default()) | ||
| } | ||
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| fn swap_with_specific_path( | ||
| _who: &AccountId, | ||
| _path: &[CurrencyId], | ||
| _limit: SwapLimit<Balance>, | ||
| ) -> Result<(Balance, Balance), DispatchError> { | ||
| Ok(Default::default()) | ||
| } | ||
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| fn add_liquidity( | ||
| _who: &AccountId, | ||
| _currency_id_a: CurrencyId, | ||
| _currency_id_b: CurrencyId, | ||
| _max_amount_a: Balance, | ||
| _max_amount_b: Balance, | ||
| _min_share_increment: Balance, | ||
| ) -> Result<(Balance, Balance, Balance), DispatchError> { | ||
| Ok(Default::default()) | ||
| } | ||
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| fn remove_liquidity( | ||
| _who: &AccountId, | ||
| _currency_id_a: CurrencyId, | ||
| _currency_id_b: CurrencyId, | ||
| _remove_share: Balance, | ||
| _min_withdrawn_a: Balance, | ||
| _min_withdrawn_b: Balance, | ||
| _by_unstake: bool, | ||
| ) -> Result<(Balance, Balance), DispatchError> { | ||
| Ok(Default::default()) | ||
| } | ||
| } |
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