Initial GeoIntel V1 foundation

backend/app/api/routes/areas.py

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+from __future__ import annotations
+
+from uuid import UUID
+
+from fastapi import APIRouter, Depends, Query
+from fastapi import HTTPException
+from sqlalchemy.orm import Session
+
+from app.db.session import get_db
+from app.models import Area
+from app.schemas.area import AreaCreate, AreaRead, AreaUpdate
+from app.services.area_service import AreaService
+from app.utils.response import envelope
+
+router = APIRouter(prefix="/projects/{project_id}/areas", tags=["areas"])
+
+
+@router.get("", response_model=dict)
+def list_areas(
+    project_id: UUID,
+    limit: int = Query(default=50, ge=1, le=200),
+    offset: int = Query(default=0, ge=0),
+    db: Session = Depends(get_db),
+):
+    areas, total = AreaService.list_areas(db, project_id=project_id, limit=limit, offset=offset)
+    return envelope({"items": [AreaRead.model_validate(area).model_dump() for area in areas], "total": total, "limit": limit, "offset": offset})
+
+
+@router.post("", status_code=201, response_model=dict)
+def create_area(project_id: UUID, payload: AreaCreate, db: Session = Depends(get_db)):
+    area = AreaService.create_area(db, project_id, payload)
+    return envelope(AreaRead.model_validate(area).model_dump())
+
+
+@router.get("/{area_id}", response_model=dict)
+def get_area(
+    project_id: UUID,
+    area_id: UUID,
+    db: Session = Depends(get_db),
+):
+    area = AreaService.get_area(db, area_id)
+    if area.project_id != project_id:
+        raise HTTPException(status_code=404, detail="Area not found")
+    return envelope(AreaRead.model_validate(area).model_dump())
+
+
+@router.patch("/{area_id}", response_model=dict)
+def update_area(
+    project_id: UUID,
+    area_id: UUID,
+    payload: AreaUpdate,
+    db: Session = Depends(get_db),
+):
+    existing = db.get(Area, area_id)
+    if not existing or existing.project_id != project_id:
+        raise HTTPException(status_code=404, detail="Area not found")
+    area = AreaService.update_area(db, area_id, payload)
+    return envelope(AreaRead.model_validate(area).model_dump())