Extract metadata tree builder

services/api-server/src/api_server/metadata_tree_models.py

@@ -0,0 +1,50 @@
+from __future__ import annotations
+
+from pydantic import BaseModel, Field
+
+
+class MetadataTreeNodeResponse(BaseModel):
+    id: str
+    label: str
+    kind: str
+    icon: str
+    qualified_name: str | None = None
+    count: int = 0
+    loaded_count: int = 0
+    has_more: bool = False
+    children: list["MetadataTreeNodeResponse"] = Field(default_factory=list)
+
+
+class ProjectMetadataTreeResponse(BaseModel):
+    project_id: str
+    root: MetadataTreeNodeResponse
+
+
+class MetadataTreeChildrenResponse(BaseModel):
+    project_id: str
+    parent_id: str
+    offset: int = 0
+    limit: int = 50
+    total: int = 0
+    has_more: bool = False
+    children: list[MetadataTreeNodeResponse] = Field(default_factory=list)
+
+
+class MetadataTreeSearchResponse(BaseModel):
+    project_id: str
+    q: str
+    total: int = 0
+    results: list[MetadataTreeNodeResponse] = Field(default_factory=list)
+
+
+class MetadataTreePathStepResponse(BaseModel):
+    parent_id: str
+    child_id: str
+    offset: int = 0
+
+
+class MetadataTreePathResponse(BaseModel):
+    project_id: str
+    node_id: str
+    path: list[str] = Field(default_factory=list)
+    steps: list[MetadataTreePathStepResponse] = Field(default_factory=list)