Build lightweight AI agent admin

2026-06-08 18:14:59 +08:00
commit e164840f43
2530 changed files with 435693 additions and 0 deletions
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+"""
+节点配置解析工具
+
+从节点配置或上下文变量中解析 object / list，避免 dict 被 stringify 后无法反序列化。
+"""
+import ast
+import json
+import re
+from typing import Any, List, Optional
+
+from ai_platform.nodes.base import NodeContext
+
+_VAR_REF_PATTERN = re.compile(r'^\{\{\s*([^}]+)\s*\}\}$')
+
+
+def _parse_structured_string(value: str) -> Any:
+    text = value.strip()
+    if not text:
+        return None
+    try:
+        return json.loads(text)
+    except (json.JSONDecodeError, TypeError):
+        pass
+    try:
+        return ast.literal_eval(text)
+    except (ValueError, SyntaxError):
+        pass
+    return value
+
+
+def resolve_config_value(context: NodeContext, raw: Any) -> Any:
+    """解析配置值：支持 dict/list 直传、{{var}} 引用、JSON/Python 字面量字符串。"""
+    if raw is None or raw == '':
+        return None
+
+    if isinstance(raw, (dict, list)):
+        return raw
+
+    if not isinstance(raw, str):
+        return raw
+
+    stripped = raw.strip()
+    var_match = _VAR_REF_PATTERN.match(stripped)
+    if var_match:
+        var_name = var_match.group(1).strip()
+        if var_name in context.variables:
+            return context.variables[var_name]
+
+    resolved = context.resolve_template(raw)
+    if isinstance(resolved, (dict, list)):
+        return resolved
+
+    if isinstance(resolved, str):
+        return _parse_structured_string(resolved)
+
+    return resolved
+
+
+def resolve_object_config(context: NodeContext, raw: Any) -> Optional[dict]:
+    value = resolve_config_value(context, raw)
+    return value if isinstance(value, dict) else None
+
+
+def resolve_list_config(context: NodeContext, raw: Any) -> Optional[List[Any]]:
+    value = resolve_config_value(context, raw)
+    return value if isinstance(value, list) else None