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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,188 @@ | ||
| use super::common::*; | ||
| use crate::utils::{one_18, to_18_decimals}; | ||
| use alloy::primitives::{ | ||
| utils::{ParseUnits, UnitsError}, | ||
| I256, U256, | ||
| }; | ||
| use std::str::FromStr; | ||
|
|
||
| impl Trade { | ||
| /// Converts this trade's input to 18 point decimals in U256/I256 | ||
| pub fn input_to_18_decimals(&self) -> Result<ParseUnits, UnitsError> { | ||
| to_18_decimals( | ||
| ParseUnits::I256(I256::from_str(&self.input_vault_balance_change.amount.0).unwrap()), | ||
| self.input_vault_balance_change | ||
| .vault | ||
| .token | ||
| .decimals | ||
| .as_ref() | ||
| .map(|v| v.0.as_str()) | ||
| .unwrap_or("18"), | ||
| ) | ||
| } | ||
|
|
||
| /// Converts this trade's output to 18 point decimals in U256/I256 | ||
| pub fn output_to_18_decimals(&self) -> Result<ParseUnits, UnitsError> { | ||
| to_18_decimals( | ||
| ParseUnits::I256(I256::from_str(&self.output_vault_balance_change.amount.0).unwrap()), | ||
| self.output_vault_balance_change | ||
| .vault | ||
| .token | ||
| .decimals | ||
| .as_ref() | ||
| .map(|v| v.0.as_str()) | ||
| .unwrap_or("18"), | ||
| ) | ||
| } | ||
|
|
||
| /// Calculates the trade I/O ratio | ||
| pub fn ratio(&self) -> Option<U256> { | ||
| Some( | ||
| self.input_to_18_decimals() | ||
| .ok()? | ||
| .get_absolute() | ||
| .saturating_mul(one_18().get_absolute()) | ||
| .checked_div( | ||
| self.output_to_18_decimals() | ||
| .ok()? | ||
| .get_signed() | ||
| .saturating_neg() | ||
| .try_into() | ||
| .ok()?, | ||
| ) | ||
| .unwrap_or(U256::MAX), | ||
| ) | ||
| } | ||
|
|
||
| /// Calculates the trade O/I ratio (inverse) | ||
| pub fn inverse_ratio(&self) -> Option<U256> { | ||
| Some( | ||
| TryInto::<U256>::try_into( | ||
| self.output_to_18_decimals() | ||
| .ok()? | ||
| .get_signed() | ||
| .saturating_neg(), | ||
| ) | ||
| .ok()? | ||
| .saturating_mul(one_18().get_absolute()) | ||
| .checked_div(self.input_to_18_decimals().ok()?.get_absolute()) | ||
| .unwrap_or(U256::MAX), | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| #[cfg(test)] | ||
| mod test { | ||
| use super::*; | ||
| use crate::types::common::{ | ||
| BigInt, Bytes, Orderbook, TradeEvent, TradeStructPartialOrder, TradeVaultBalanceChange, | ||
| Transaction, VaultBalanceChangeVault, | ||
| }; | ||
| use alloy::primitives::Address; | ||
|
|
||
| #[test] | ||
| fn test_input_to_18_decimals() { | ||
| let result = get_trade().input_to_18_decimals().unwrap(); | ||
| let expected = U256::from_str("3000000000000000000").unwrap(); | ||
| assert_eq!(result.get_absolute(), expected); | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_output_to_18_decimals() { | ||
| let result = get_trade().output_to_18_decimals().unwrap(); | ||
| let expected = I256::from_str("-6000000000000000000").unwrap(); | ||
| assert_eq!(result.get_signed(), expected); | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_ratio() { | ||
| let result = get_trade().ratio().unwrap(); | ||
| let expected = U256::from_str("500000000000000000").unwrap(); | ||
| assert_eq!(result, expected); | ||
| } | ||
|
|
||
| #[test] | ||
| fn test_inverse_ratio() { | ||
| let result = get_trade().inverse_ratio().unwrap(); | ||
| let expected = U256::from_str("2000000000000000000").unwrap(); | ||
| assert_eq!(result, expected); | ||
| } | ||
|
|
||
| // helper to get trade struct | ||
| fn get_trade() -> Trade { | ||
| let token_address = Address::from_slice(&[0x11u8; 20]); | ||
| let token = Erc20 { | ||
| id: Bytes(token_address.to_string()), | ||
| address: Bytes(token_address.to_string()), | ||
| name: Some("Token1".to_string()), | ||
| symbol: Some("Token1".to_string()), | ||
| decimals: Some(BigInt(6.to_string())), | ||
| }; | ||
| let input_trade_vault_balance_change = TradeVaultBalanceChange { | ||
| id: Bytes("".to_string()), | ||
| __typename: "".to_string(), | ||
| amount: BigInt("3000000".to_string()), | ||
| new_vault_balance: BigInt("".to_string()), | ||
| old_vault_balance: BigInt("".to_string()), | ||
| vault: VaultBalanceChangeVault { | ||
| id: Bytes("".to_string()), | ||
| vault_id: BigInt("".to_string()), | ||
| token: token.clone(), | ||
| }, | ||
| timestamp: BigInt("".to_string()), | ||
| transaction: Transaction { | ||
| id: Bytes("".to_string()), | ||
| from: Bytes("".to_string()), | ||
| block_number: BigInt("".to_string()), | ||
| timestamp: BigInt("".to_string()), | ||
| }, | ||
| orderbook: Orderbook { | ||
| id: Bytes("".to_string()), | ||
| }, | ||
| }; | ||
| let output_trade_vault_balance_change = TradeVaultBalanceChange { | ||
| id: Bytes("".to_string()), | ||
| __typename: "".to_string(), | ||
| amount: BigInt("-6000000".to_string()), | ||
| new_vault_balance: BigInt("".to_string()), | ||
| old_vault_balance: BigInt("".to_string()), | ||
| vault: VaultBalanceChangeVault { | ||
| id: Bytes("".to_string()), | ||
| vault_id: BigInt("".to_string()), | ||
| token: token.clone(), | ||
| }, | ||
| timestamp: BigInt("".to_string()), | ||
| transaction: Transaction { | ||
| id: Bytes("".to_string()), | ||
| from: Bytes("".to_string()), | ||
| block_number: BigInt("".to_string()), | ||
| timestamp: BigInt("".to_string()), | ||
| }, | ||
| orderbook: Orderbook { | ||
| id: Bytes("".to_string()), | ||
| }, | ||
| }; | ||
| Trade { | ||
| id: Bytes("".to_string()), | ||
| trade_event: TradeEvent { | ||
| transaction: Transaction { | ||
| id: Bytes("".to_string()), | ||
| from: Bytes("".to_string()), | ||
| block_number: BigInt("".to_string()), | ||
| timestamp: BigInt("".to_string()), | ||
| }, | ||
| sender: Bytes("".to_string()), | ||
| }, | ||
| output_vault_balance_change: output_trade_vault_balance_change, | ||
| input_vault_balance_change: input_trade_vault_balance_change, | ||
| order: TradeStructPartialOrder { | ||
| id: Bytes("".to_string()), | ||
| order_hash: Bytes("".to_string()), | ||
| }, | ||
| timestamp: BigInt("".to_string()), | ||
| orderbook: Orderbook { | ||
| id: Bytes("".to_string()), | ||
| }, | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,5 @@ | ||
| pub mod common; | ||
| pub mod impls; | ||
| pub mod order; | ||
| pub mod order_detail_traits; | ||
| pub mod order_trade; | ||
|
|
||
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