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backend/app/api/v1/endpoints/regions.py

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+# /opt/docker/dev/service_finder/backend/app/api/v1/endpoints/regions.py
+"""
+🌍 Global Region Registry API Endpoint.
+
+Public endpoint that returns the list of active region configurations.
+Used by the frontend to drive locale-aware formatting (dates, numbers, currencies)
+and financial calculations (VAT, pricing).
+
+Schema: system.region_config
+"""
+import logging
+from typing import List
+
+from fastapi import APIRouter, Depends
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select
+
+from app.api.deps import get_db
+from app.models.core_logic import RegionConfig
+
+logger = logging.getLogger(__name__)
+
+router = APIRouter()
+
+
+@router.get("/regions", response_model=List[dict])
+async def list_active_regions(
+    db: AsyncSession = Depends(get_db),
+):
+    """
+    GET /api/v1/system/regions
+
+    Returns all active region configurations from the system.region_config table.
+    This is a public endpoint (no auth required) used by the frontend to:
+    - Format dates, numbers, and currencies according to locale
+    - Calculate VAT rates for pricing
+    - Determine timezone for date displays
+    """
+    stmt = select(RegionConfig).where(RegionConfig.is_active == True).order_by(RegionConfig.country_code)
+    result = await db.execute(stmt)
+    regions = result.scalars().all()
+
+    return [
+        {
+            "country_code": r.country_code,
+            "name": r.name,
+            "currency": r.currency,
+            "default_vat_rate": r.default_vat_rate,
+            "locale_code": r.locale_code,
+            "timezone": r.timezone,
+            "is_active": r.is_active,
+        }
+        for r in regions
+    ]