[WIP] board list endpoint w cover photos

invokeai/app/api/routers/boards.py

@@ -1,5 +1,7 @@
 from fastapi import Body, HTTPException, Path, Query
 from fastapi.routing import APIRouter
+from invokeai.app.services.boards import BoardRecord, BoardRecordChanges
+from invokeai.app.services.image_record_storage import OffsetPaginatedResults
 
 from ..dependencies import ApiDependencies
 
@@ -38,3 +40,52 @@ async def delete_board(
         pass
 
 
+@boards_router.get(
+    "/",
+    operation_id="list_boards",
+    response_model=OffsetPaginatedResults[BoardRecord],
+)
+async def list_boards(
+    offset: int = Query(default=0, description="The page offset"),
+    limit: int = Query(default=10, description="The number of boards per page"),
+) -> OffsetPaginatedResults[BoardRecord]:
+    """Gets a list of boards"""
+
+    results = ApiDependencies.invoker.services.boards.get_many(
+        offset,
+        limit,
+    )
+
+    boards = list(
+        map(
+            lambda r: board_record_to_dto(
+                r,
+                generate_cover_photo_url(r.id)
+            ),
+            results.boards,
+        )
+    )
+
+    return boards
+
+
+class BoardDTO(BaseModel):
+    """A DTO for an image"""
+    id: str
+    name: str
+    cover_image_url: str
+
+def board_record_to_dto(
+    board_record: BoardRecord, cover_image_url: str
+) -> BoardDTO:
+    """Converts an image record to an image DTO."""
+    return BoardDTO(
+        **board_record.dict(),
+        cover_image_url=cover_image_url,
+    )
+
+def generate_cover_photo_url(board_id: str) -> str | None:
+    cover_photo = ApiDependencies.invoker.services.images._services.records.get_board_cover_photo(board_id)
+    if cover_photo is not None:
+        url = ApiDependencies.invoker.services.images._services.urls.get_image_url(cover_photo.image_origin, cover_photo.image_name)
+        return url