Start Lagoon valuation work

eth_defi/lagoon/valuation_commitee.py

@@ -0,0 +1,2 @@
+"""Lagoon vault NAV handling."""
+

eth_defi/lagoon/vault.py

@@ -167,3 +167,6 @@ def transact_through_module(
             operation,
         )
         return bound_func
+
+    def calculate_nav(self):
+

eth_defi/vault/valuation.py

@@ -0,0 +1,47 @@
+"""EVM Vault valuation."""
+from eth_typing import HexAddress
+from web3.contract import Contract
+
+from eth_defi.vault.base import VaultPortfolio
+
+
+def map_best_routes(
+    quoter: Contract,
+    tokens: set[HexAddress],
+    target_asset: HexAddress,
+    intermedia_tokens: set[HexAddress],
+):
+    """Find best available routes to sell assets.
+
+    - Use Uniswap v2 and brute force loop to figure out routes for each asset.
+    """
+
+
+
+
+def calculate_nav_on_market_sell(
+    portfolio: VaultPortfolio,
+    quoter: Contract,
+    valuation_asset: HexAddress,
+    intermedia_tokens: set[HexAddress],
+):
+    """Calculate valuation of all vault spot assets, assuming we would sell them on Uniswap market sell.
+
+    :param portfolio:
+        The gathered portfolio of current assets
+
+    :param quoter:
+        Uniswap QuoterV2 smart contract.
+
+    :param intermedia_token:
+        The supported intermediate token if we cannot do direct market sell.
+
+    :param valuation_asset:
+        The asset in which we value the portfolio.
+
+        E.g. `USDC`.
+    """
+
+    calls = []
+    for token in portfolio.spot_erc20:
+        pass