fix: prep for v2 smol subgraphs

bal_tools/graphql/core/last_join_exit.gql

@@ -1,7 +1,6 @@
 query LastJoinExit($poolId: String!) {
   joinExits(first: 1, orderBy: timestamp, orderDirection: desc, where: {pool: $poolId}) {
-        amounts
-    valueUSD
+    amounts
     id
     sender
     timestamp

bal_tools/graphql/core/pool_snapshots.gql

@@ -5,7 +5,6 @@ query PoolsSnapshots($first: Int, $skip: Int, $block: Int) {
     orderBy: timestamp
     orderDirection: desc
     block: { number: $block }
-    where: { protocolFee_not: null }
   ) {
     pool {
       address
@@ -19,9 +18,5 @@ query PoolsSnapshots($first: Int, $skip: Int, $block: Int) {
       }
     }
     timestamp
-    protocolFee
-    swapFees
-    swapVolume
-    liquidity
   }
 }

bal_tools/models.py

@@ -124,15 +124,15 @@ def validate_symbol(cls, v):
 
 class PoolSnapshot(BaseModel):
     timestamp: int
-    protocolFee: Decimal
-    swapFees: Decimal
-    swapVolume: Decimal
-    liquidity: Decimal
     address: str
     id: str
     symbol: str
     totalProtocolFeePaidInBPT: Decimal = Field(default=Decimal(0))
     tokens: List[TokenFee]
+    protocolFee: Optional[Decimal] = Field(default=Decimal(0))
+    swapFees: Optional[Decimal] = Field(default=Decimal(0))
+    swapVolume: Optional[Decimal] = Field(default=Decimal(0))
+    liquidity: Optional[Decimal] = Field(default=Decimal(0))
 
     @field_validator("totalProtocolFeePaidInBPT", mode="before")
     @classmethod

tests/mock/mock_data.py

@@ -112,10 +112,6 @@
                 ],
             },
             "timestamp": 1713744000,
-            "protocolFee": "20729.00526903175861936991501109402",
-            "swapFees": "42555.1058049324",
-            "swapVolume": "114566260.594991",
-            "liquidity": "2036046.63834962216860375518680805",
         }
     ]
 }

tests/mock/test_mock_subgraph.py

@@ -73,15 +73,3 @@ def test_get_balancer_pool_snapshots(subgraph):
     assert snapshot.tokens[0].symbol == "DOLA"
     assert snapshot.tokens[1].symbol == "USDC"
     assert snapshot.timestamp == 1713744000
-    assert pytest.approx(snapshot.protocolFee, rel=Decimal(1e-2)) == Decimal(
-        "20729.00526903175861936991501109402"
-    )
-    assert pytest.approx(snapshot.swapFees, rel=Decimal(1e-2)) == Decimal(
-        "42555.1058049324"
-    )
-    assert pytest.approx(snapshot.swapVolume, rel=Decimal(1e-2)) == Decimal(
-        "114566260.594991"
-    )
-    assert pytest.approx(snapshot.liquidity, rel=Decimal(1e-2)) == Decimal(
-        "2036046.63834962216860375518680805"
-    )