🎨 Reorganize back-end code

backend/api/routers/line.py

@@ -0,0 +1,34 @@
+from fastapi import APIRouter, HTTPException
+from fastapi_cache.decorator import cache
+
+from models import Line
+from schemas import Line as LineSchema, TransportMode
+
+
+router = APIRouter(prefix="/line", tags=["line"])
+
+
+@router.get("/{line_id}", response_model=LineSchema)
+@cache(namespace="line")
+async def get_line(line_id: int) -> LineSchema:
+    line: Line | None = await Line.get_by_id(line_id)
+
+    if line is None:
+        raise HTTPException(status_code=404, detail=f'Line "{line_id}" not found')
+
+    return LineSchema(
+        id=line.id,
+        shortName=line.short_name,
+        name=line.name,
+        status=line.status,
+        transportMode=TransportMode.from_idfm_transport_mode(
+            line.transport_mode, line.transport_submode
+        ),
+        backColorHexa=line.colour_web_hexa,
+        foreColorHexa=line.text_colour_hexa,
+        operatorId=line.operator_id,
+        accessibility=line.accessibility,
+        visualSignsAvailable=line.visual_signs_available,
+        audibleSignsAvailable=line.audible_signs_available,
+        stopIds=[stop.id for stop in line.stops],
+    )