feat: Remove batch execute logic from StrategyEncoder

Add action_type and selector to StrategyEncoder
Rename SequentialExactInStrategyEncoder -> SequentialStrategyEncoder

src/encoding/router_encoder.rs

@@ -22,8 +22,22 @@ impl<S: StrategySelector, A: UserApprovalsManager> RouterEncoder<S, A> {
         let mut calldata_list: Vec<Vec<u8>> = Vec::new();
         let encode_for_batch_execute = solution.orders.len() > 1;
         for order in solution.orders {
+            let exact_out = order.exact_out.clone();
+            let straight_to_pool = order.straight_to_pool.clone();
+
             let strategy = self.strategy_selector.select_strategy(&order);
-            let contract_interaction = strategy.encode_strategy(order, encode_for_batch_execute)?;
+            let method_calldata = strategy.encode_strategy(order)?;
+
+            let contract_interaction = if encode_for_batch_execute {
+                let args = (strategy.action_type(exact_out) as u16, method_calldata);
+                args.abi_encode()
+            } else {
+                if straight_to_pool {
+                    method_calldata
+                } else {
+                    encode_input(strategy.selector(exact_out), method_calldata)
+                }
+            };
             calldata_list.push(contract_interaction);
         }
         if encode_for_batch_execute {

src/encoding/strategy_encoder.rs

@@ -6,14 +6,13 @@ use crate::encoding::models::{
     ActionType, EncodingContext, NativeAction, Order, PROPELLER_ROUTER_ADDRESS,
 };
 use crate::encoding::swap_encoder::{get_swap_encoder, get_swap_executor_address};
-use crate::encoding::utils::{biguint_to_u256, encode_input, ple_encode};
+use crate::encoding::utils::{biguint_to_u256, ple_encode};
 
 pub trait StrategyEncoder {
-    fn encode_strategy(
+    fn encode_strategy(&self, to_encode: Order) -> Result<Vec<u8>, Error>;
-        &self,
+
-        to_encode: Order,
+    fn action_type(&self, exact_out: bool) -> ActionType;
-        encode_for_batch_execute: bool,
+    fn selector(&self, exact_out: bool) -> &str;
-    ) -> Result<Vec<u8>, Error>;
 
     fn encode_protocol_header(
         &self,
@@ -33,23 +32,31 @@ pub trait StrategyEncoder {
 pub struct SingleSwapStrategyEncoder {}
 
 impl StrategyEncoder for SingleSwapStrategyEncoder {
-    fn encode_strategy(
+    fn encode_strategy(&self, order: Order) -> Result<Vec<u8>, Error> {
-        &self,
-        order: Order,
-        encode_for_batch_execute: bool,
-    ) -> Result<Vec<u8>, Error> {
         todo!()
     }
+
+    fn action_type(&self, exact_out: bool) -> ActionType {
+        if exact_out {
+            ActionType::SingleExactOut
+        } else {
+            ActionType::SingleExactIn
+        }
     }
 
-pub struct SequentialExactInStrategyEncoder {}
+    fn selector(&self, exact_out: bool) -> &str {
+        if exact_out {
+            "singleExactOut(uint256, bytes)"
+        } else {
+            "singleExactIn(uint256, bytes)"
+        }
+    }
+}
 
-impl StrategyEncoder for SequentialExactInStrategyEncoder {
+pub struct SequentialStrategyEncoder {}
-    fn encode_strategy(
+
-        &self,
+impl StrategyEncoder for SequentialStrategyEncoder {
-        order: Order,
+    fn encode_strategy(&self, order: Order) -> Result<Vec<u8>, Error> {
-        encode_for_batch_execute: bool,
-    ) -> Result<Vec<u8>, Error> {
         let mut check_amount = order.check_amount.clone();
         if order.slippage.is_some() {
             let one_hundred = BigUint::from(100u32);
@@ -83,9 +90,6 @@ impl StrategyEncoder for SequentialExactInStrategyEncoder {
             swaps.push(swap_data);
         }
 
-        let selector = "sequentialExactIn(uint256, uint256, bytes[])";
-        let action_type = ActionType::SequentialExactIn;
-
         let encoded_swaps = ple_encode(swaps);
 
         let (mut unwrap, mut wrap) = (false, false);
@@ -103,11 +107,22 @@ impl StrategyEncoder for SequentialExactInStrategyEncoder {
             encoded_swaps,
         )
             .abi_encode();
-        if encode_for_batch_execute {
+        Ok(method_calldata)
-            let args = (action_type as u16, method_calldata);
+    }
-            Ok(args.abi_encode())
+
+    fn action_type(&self, exact_out: bool) -> ActionType {
+        if exact_out {
+            ActionType::SequentialExactOut
         } else {
-            Ok(encode_input(selector, method_calldata))
+            ActionType::SequentialExactIn
+        }
+    }
+
+    fn selector(&self, exact_out: bool) -> &str {
+        if exact_out {
+            "sequentialExactOut(uint256, uint256, bytes[])"
+        } else {
+            "sequentialExactIn(uint256, uint256, bytes[])"
         }
     }
 }
@@ -115,13 +130,16 @@ impl StrategyEncoder for SequentialExactInStrategyEncoder {
 pub struct SlipSwapStrategyEncoder {}
 
 impl StrategyEncoder for SlipSwapStrategyEncoder {
-    fn encode_strategy(
+    fn encode_strategy(&self, order: Order) -> Result<Vec<u8>, Error> {
-        &self,
-        order: Order,
-        encode_for_batch_execute: bool,
-    ) -> Result<Vec<u8>, Error> {
         todo!()
     }
+    fn action_type(&self, _exact_out: bool) -> ActionType {
+        ActionType::SplitIn
+    }
+
+    fn selector(&self, _exact_out: bool) -> &str {
+        "splitExactIn(uint256, address, uint256, bytes[])"
+    }
 }
 
 /// This strategy encoder is used for orders that are sent directly to the pool.
@@ -129,11 +147,7 @@ impl StrategyEncoder for SlipSwapStrategyEncoder {
 pub struct StraightToPoolStrategyEncoder {}
 
 impl StrategyEncoder for StraightToPoolStrategyEncoder {
-    fn encode_strategy(
+    fn encode_strategy(&self, order: Order) -> Result<Vec<u8>, Error> {
-        &self,
-        order: Order,
-        encode_for_batch_execute: bool,
-    ) -> Result<Vec<u8>, Error> {
         if order.router_address.is_none() {
             return Err(anyhow::anyhow!(
                 "Router address is required for straight to pool orders"
@@ -152,4 +166,12 @@ impl StrategyEncoder for StraightToPoolStrategyEncoder {
         let protocol_data = swap_encoder.encode_swap(swap.clone(), encoding_context)?;
         Ok(protocol_data)
     }
+
+    fn action_type(&self, _exact_out: bool) -> ActionType {
+        unimplemented!();
+    }
+
+    fn selector(&self, _exact_out: bool) -> &str {
+        unimplemented!();
+    }
 }

src/encoding/strategy_selector.rs

@@ -1,6 +1,6 @@
 use crate::encoding::models::Order;
 use crate::encoding::strategy_encoder::{
-    SequentialExactInStrategyEncoder, SingleSwapStrategyEncoder, SlipSwapStrategyEncoder,
+    SequentialStrategyEncoder, SingleSwapStrategyEncoder, SlipSwapStrategyEncoder,
     StraightToPoolStrategyEncoder, StrategyEncoder,
 };
 
@@ -17,7 +17,7 @@ impl StrategySelector for DefaultStrategySelector {
         } else if order.swaps.len() == 1 {
             Box::new(SingleSwapStrategyEncoder {})
         } else if order.swaps.iter().all(|s| s.split == 0.0) {
-            Box::new(SequentialExactInStrategyEncoder {})
+            Box::new(SequentialStrategyEncoder {})
         } else {
             Box::new(SlipSwapStrategyEncoder {})
         }