Create interoperability.py

src/cross_chain_bridge/interoperability.py

@@ -0,0 +1,115 @@
+import json
+import os
+from web3 import Web3
+
+class CrossChainInteroperability:
+    def __init__(self, storage_file='cross_chain_assets.json', provider_url='https://your.ethereum.node'):
+        self.storage_file = storage_file
+        self.assets = {}
+        self.web3 = Web3(Web3.HTTPProvider(provider_url))
+        self.load_assets()
+
+    def load_assets(self):
+        """Load cross-chain assets from a JSON file."""
+        if os.path.exists(self.storage_file):
+            with open(self.storage_file, 'r') as file:
+                self.assets = json.load(file)
+
+    def save_assets(self):
+        """Save cross-chain assets to a JSON file."""
+        with open(self.storage_file, 'w') as file:
+            json.dump(self.assets, file)
+
+    def register_asset(self, asset_id, chain_id, owner, asset_data):
+        """Register a new cross-chain asset."""
+        if asset_id in self.assets:
+            raise ValueError("Asset ID already exists.")
+
+        asset = {
+            'asset_id': asset_id,
+            'chain_id': chain_id,
+            'owner': owner,
+            'asset_data': asset_data,
+            'transfers': []
+        }
+        self.assets[asset_id] = asset
+        self.save_assets()
+        return f"Asset {asset_id} registered successfully on chain {chain_id}."
+
+    def transfer_asset(self, asset_id, new_owner, target_chain):
+        """Transfer ownership of a cross-chain asset."""
+        if asset_id not in self.assets:
+            raise ValueError("Asset ID not found.")
+
+        asset = self.assets[asset_id]
+        old_owner = asset['owner']
+        asset['owner'] = new_owner
+        asset['transfers'].append({
+            'from': old_owner,
+            'to': new_owner,
+            'target_chain': target_chain,
+            'timestamp': self.web3.eth.getBlock('latest')['timestamp']
+        })
+        self.save_assets()
+        return f"Asset {asset_id} transferred from {old_owner} to {new_owner} on chain {target_chain}."
+
+    def get_asset_details(self, asset_id):
+        """Get details of a specific cross-chain asset."""
+        if asset_id not in self.assets:
+            return "Asset ID not found."
+        return self.assets[asset_id]
+
+    def swap_assets(self, asset_id_a, asset_id_b):
+        """Swap two cross-chain assets."""
+        if asset_id_a not in self.assets or asset_id_b not in self.assets:
+            raise ValueError("One or both asset IDs not found.")
+
+        asset_a = self.assets[asset_id_a]
+        asset_b = self.assets[asset_id_b]
+
+        # Swap ownership
+        old_owner_a = asset_a['owner']
+        old_owner_b = asset_b['owner']
+        asset_a['owner'] = old_owner_b
+        asset_b['owner'] = old_owner_a
+
+        # Log the transfers
+        asset_a['transfers'].append({
+            'from': old_owner_a,
+            'to': old_owner_b,
+            'timestamp': self.web3.eth.getBlock('latest')['timestamp']
+        })
+        asset_b['transfers'].append({
+            'from': old_owner_b,
+            'to': old_owner_a,
+            'timestamp': self.web3.eth.getBlock('latest')['timestamp']
+        })
+
+        self.save_assets()
+        return f"Assets {asset_id_a} and {asset_id_b} swapped successfully."
+
+# Example usage
+if __name__ == "__main__":
+    interoperability_manager = CrossChainInteroperability()
+
+    # Register a new cross-chain asset
+    asset_id = "asset123"
+    chain_id = "Ethereum"
+    owner = "user123"
+    asset_data = {
+        "name": "Example Digital Art",
+        "value": 1000
+    }
+    print(interoperability_manager.register_asset(asset_id, chain_id, owner, asset_data))
+
+    # Transfer ownership of the asset
+    new_owner = "user456"
+    print(interoperability_manager.transfer_asset(asset_id, new_owner, chain_id))
+
+    # Get asset details
+    asset_details = interoperability_manager.get_asset_details(asset_id)
+    print(f"Asset Details: {asset_details}")
+
+    # Swap two assets
+    asset_id_b = "asset456"  # Assume this asset is already registered
+    print(interoperability_manager.swap_assets(asset_id, asset_id_b))