fix: handle JSON array parameters intelligently for different RPC methods

- Fix getblock '[blockhash]' issue by extracting first element from JSON arrays
- Maintain backward compatibility for plain string parameters
- Support JSON arrays as-is for methods like logging and importdescriptors
- Extract only first element for single-parameter methods (getblock, getblockhash, gettransaction)
- Extract all elements for multi-parameter methods
- Fix malformed JSON patterns with escaped quotes

Author: b-l-u-e

src/warnet/bitcoin.py

@@ -53,8 +53,34 @@ def _rpc(tank: str, method: str, params: list[str], namespace: Optional[str] = N
                 if '\\"' in param:
                     # Convert [\"value\"] to ["value"]
                     param = param.replace('\\"', '"')
-                # Wrap JSON in single quotes to preserve it as a single argument
-                processed_params.append(f"'{param}'")
+
+                # Try to parse as JSON to determine how to handle it
+                try:
+                    parsed_json = json.loads(param)
+                    if isinstance(parsed_json, list):
+                        # For JSON arrays, extract elements for methods that expect individual parameters
+                        # (like getblock, gettransaction, etc.)
+                        # But keep as JSON for methods that expect JSON arrays (like logging)
+                        if method in ["logging", "importdescriptors", "importmulti"]:
+                            # These methods expect JSON arrays as-is
+                            processed_params.append(f"'{param}'")
+                        else:
+                            # For single-parameter methods, only extract the first element
+                            # For multi-parameter methods, extract all elements
+                            if method in ["getblockhash", "getblock", "gettransaction"]:
+                                # These methods expect a single parameter, so only take the first element
+                                if parsed_json:
+                                    processed_params.append(str(parsed_json[0]))
+                            else:
+                                # Extract all array elements for other methods
+                                for element in parsed_json:
+                                    processed_params.append(str(element))
+                    else:
+                        # For JSON objects, pass as-is
+                        processed_params.append(f"'{param}'")
+                except json.JSONDecodeError:
+                    # If it's not valid JSON, pass as-is
+                    processed_params.append(param)
             else:
                 processed_params.append(param)