added child endpoint, ability to add and edit child as well as auto redirect to add-child page when user without child accesses home page

src/baby_monitor/routers/child.py

@@ -0,0 +1,90 @@
+"""Child management router."""
+
+from typing import Annotated
+from fastapi import APIRouter, HTTPException, Depends
+
+from baby_monitor.models.child import CreateChildRequest, ChildResponse
+from baby_monitor.routers.auth import verify_token
+from baby_monitor.repositories.child.sqlite_child import SQLiteChildRepository
+from baby_monitor.repositories.dependencies.get_child_repository import (
+    get_child_repository,
+)
+
+router = APIRouter(prefix="/api/children", tags=["children"])
+
+
+@router.post("", response_model=ChildResponse, status_code=201)
+def create_child(
+    request: CreateChildRequest,
+    user_id: Annotated[int, Depends(verify_token)],
+    child_repo: Annotated[SQLiteChildRepository, Depends(get_child_repository)],
+) -> ChildResponse:
+    """Create a new child for the authenticated user."""
+    child = child_repo.create(
+        name=request.name,
+        birth_time=request.birth_time,
+        birth_weight=request.birth_weight,
+        user_id=user_id,
+    )
+
+    return ChildResponse(**child)
+
+
+@router.get("", response_model=list[ChildResponse])
+def get_user_children(
+    user_id: Annotated[int, Depends(verify_token)],
+    child_repo: Annotated[SQLiteChildRepository, Depends(get_child_repository)],
+) -> list[ChildResponse]:
+    """Get all children for the authenticated user."""
+    children = child_repo.get_by_user_id(user_id)
+    return [ChildResponse(**child) for child in children]
+
+
+@router.get("/{child_id}", response_model=ChildResponse)
+def get_child(
+    child_id: int,
+    user_id: Annotated[int, Depends(verify_token)],
+    child_repo: Annotated[SQLiteChildRepository, Depends(get_child_repository)],
+) -> ChildResponse:
+    """Get a specific child by ID."""
+    child = child_repo.get_by_id(child_id)
+
+    if not child:
+        raise HTTPException(status_code=404, detail="Child not found")
+
+    # Verify the child belongs to the authenticated user
+    if child["user_id"] != user_id:
+        raise HTTPException(status_code=403, detail="Access denied")
+
+    return ChildResponse(**child)
+
+
+@router.put("/{child_id}", response_model=ChildResponse)
+def update_child(
+    child_id: int,
+    request: CreateChildRequest,
+    user_id: Annotated[int, Depends(verify_token)],
+    child_repo: Annotated[SQLiteChildRepository, Depends(get_child_repository)],
+) -> ChildResponse:
+    """Update a child's information."""
+    # First check if child exists and belongs to user
+    child = child_repo.get_by_id(child_id)
+
+    if not child:
+        raise HTTPException(status_code=404, detail="Child not found")
+
+    if child["user_id"] != user_id:
+        raise HTTPException(status_code=403, detail="Access denied")
+
+    # Update the child
+    updated_child = child_repo.update(
+        child_id=child_id,
+        name=request.name,
+        birth_time=request.birth_time,
+        birth_weight=request.birth_weight,
+    )
+
+    if not updated_child:
+        raise HTTPException(status_code=500, detail="Update failed")
+
+    return ChildResponse(**updated_child)