"""Address routes — list, create, update, delete with entity filtering."""

from __future__ import annotations

import uuid

from fastapi import APIRouter, Depends, HTTPException, Query, status
from sqlalchemy.ext.asyncio import AsyncSession

from app.core.db import get_db
from app.deps import require_permission
from app.schemas.address import AddressCreate, AddressUpdate
from app.services import address_service

router = APIRouter(prefix="/api/v1/addresses", tags=["addresses"])


def _validate_entity_type(entity_type: str) -> None:
    """Validate entity_type against the ENTITY_MODELS registry."""
    from app.services.entity_permission_service import ENTITY_MODELS

    if entity_type not in ENTITY_MODELS:
        raise HTTPException(
            status_code=400,
            detail={"detail": f"Invalid entity_type: {entity_type}", "code": "invalid_entity_type"},
        )


@router.get("")
async def list_addresses(
    entity_type: str = Query(...),
    entity_id: str = Query(...),
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("addresses:read")),
):
    """List all addresses for a given entity (company or contact)."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    is_admin = current_user.get("is_system_admin", False)

    _validate_entity_type(entity_type)

    try:
        eid = uuid.UUID(entity_id)
    except ValueError:
        raise HTTPException(400, detail={"detail": "Invalid entity_id", "code": "invalid_id"}) from None

    try:
        return await address_service.list_addresses(db, tenant_id, entity_type, eid, user_id=user_id, is_system_admin=is_admin)
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e)) from e


@router.post("", status_code=status.HTTP_201_CREATED)
async def create_address(
    body: AddressCreate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("addresses:write")),
):
    """Create a new address for a company or contact."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    is_admin = current_user.get("is_system_admin", False)

    data = body.model_dump()
    _validate_entity_type(data["entity_type"])
    try:
        return await address_service.create_address(db, tenant_id, user_id, data, is_system_admin=is_admin)
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e)) from e
    except ValueError as exc:
        raise HTTPException(400, detail={"detail": str(exc), "code": "invalid_value"}) from exc


@router.patch("/{address_id}")
async def update_address(
    address_id: str,
    body: AddressUpdate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("addresses:write")),
):
    """Update an address."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    is_admin = current_user.get("is_system_admin", False)

    try:
        aid = uuid.UUID(address_id)
    except ValueError:
        raise HTTPException(400, detail={"detail": "Invalid address_id", "code": "invalid_id"}) from None

    data = body.model_dump(exclude_unset=True)
    try:
        result = await address_service.update_address(db, tenant_id, user_id, aid, data, is_system_admin=is_admin)
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e)) from e
    if result is None:
        raise HTTPException(404, detail={"detail": "Address not found", "code": "not_found"})
    return result


@router.delete("/{address_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_address(
    address_id: str,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("addresses:write")),
):
    """Soft-delete an address."""
    tenant_id = uuid.UUID(current_user["tenant_id"])
    user_id = uuid.UUID(current_user["user_id"])
    is_admin = current_user.get("is_system_admin", False)

    try:
        aid = uuid.UUID(address_id)
    except ValueError:
        raise HTTPException(400, detail={"detail": "Invalid address_id", "code": "invalid_id"}) from None

    try:
        deleted = await address_service.delete_address(db, tenant_id, user_id, aid, is_system_admin=is_admin)
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e)) from e
    if not deleted:
        raise HTTPException(404, detail={"detail": "Address not found", "code": "not_found"})