vendor features for admin and vendor admin area

app/api/v1/public/vendors/vendors.py

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+# app/api/v1/public/vendors/vendors.py
+"""
+Public vendor information endpoints.
+
+Provides public-facing vendor lookup and information retrieval.
+"""
+
+import logging
+from fastapi import APIRouter, Depends, HTTPException, Path
+from sqlalchemy.orm import Session
+
+from app.core.database import get_db
+from models.database.vendor import Vendor
+
+router = APIRouter()
+logger = logging.getLogger(__name__)
+
+
+@router.get("/by-code/{vendor_code}")
+def get_vendor_by_code(
+        vendor_code: str = Path(..., description="Vendor code (e.g., TECHSTORE233)"),
+        db: Session = Depends(get_db)
+):
+    """
+    Get public vendor information by vendor code.
+
+    This endpoint is used by:
+    - Frontend vendor login page to validate vendor existence
+    - Customer shop to display vendor information
+
+    Returns basic vendor information (no sensitive data).
+    """
+    vendor = db.query(Vendor).filter(
+        Vendor.vendor_code == vendor_code.upper(),
+        Vendor.is_active == True
+    ).first()
+
+    if not vendor:
+        logger.warning(f"Vendor lookup failed for code: {vendor_code}")
+        raise HTTPException(
+            status_code=404,
+            detail=f"Vendor '{vendor_code}' not found or inactive"
+        )
+
+    logger.info(f"Vendor lookup successful: {vendor.vendor_code}")
+
+    # Return public vendor information (no sensitive data)
+    return {
+        "id": vendor.id,
+        "vendor_code": vendor.vendor_code,
+        "subdomain": vendor.subdomain,
+        "name": vendor.name,
+        "description": vendor.description,
+        "website": vendor.website,
+        "is_active": vendor.is_active,
+        "is_verified": vendor.is_verified
+    }
+
+
+@router.get("/by-subdomain/{subdomain}")
+def get_vendor_by_subdomain(
+        subdomain: str = Path(..., description="Vendor subdomain (e.g., techstore233)"),
+        db: Session = Depends(get_db)
+):
+    """
+    Get public vendor information by subdomain.
+
+    Used for subdomain-based vendor detection in production environments.
+    Example: techstore233.platform.com -> subdomain is "techstore233"
+    """
+    vendor = db.query(Vendor).filter(
+        Vendor.subdomain == subdomain.lower(),
+        Vendor.is_active == True
+    ).first()
+
+    if not vendor:
+        logger.warning(f"Vendor lookup failed for subdomain: {subdomain}")
+        raise HTTPException(
+            status_code=404,
+            detail=f"Vendor with subdomain '{subdomain}' not found or inactive"
+        )
+
+    logger.info(f"Vendor lookup by subdomain successful: {vendor.vendor_code}")
+
+    return {
+        "id": vendor.id,
+        "vendor_code": vendor.vendor_code,
+        "subdomain": vendor.subdomain,
+        "name": vendor.name,
+        "description": vendor.description,
+        "website": vendor.website,
+        "is_active": vendor.is_active,
+        "is_verified": vendor.is_verified
+    }
+
+
+@router.get("/{vendor_id}/info")
+def get_vendor_info(
+        vendor_id: int = Path(..., description="Vendor ID"),
+        db: Session = Depends(get_db)
+):
+    """
+    Get public vendor information by ID.
+
+    Used when vendor_id is already known (e.g., from URL parameters).
+    """
+    vendor = db.query(Vendor).filter(
+        Vendor.id == vendor_id,
+        Vendor.is_active == True
+    ).first()
+
+    if not vendor:
+        logger.warning(f"Vendor lookup failed for ID: {vendor_id}")
+        raise HTTPException(
+            status_code=404,
+            detail=f"Vendor with ID {vendor_id} not found or inactive"
+        )
+
+    return {
+        "id": vendor.id,
+        "vendor_code": vendor.vendor_code,
+        "subdomain": vendor.subdomain,
+        "name": vendor.name,
+        "description": vendor.description,
+        "website": vendor.website,
+        "is_active": vendor.is_active,
+        "is_verified": vendor.is_verified
+    }