"""Bank account routes — list, create, update, delete with tenant isolation."""

from __future__ import annotations

import uuid

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

from app.core.db import get_db
from app.deps import require_permission
from app.schemas.bank_account import BankAccountCreate, BankAccountUpdate
from app.services import bank_account_service

router = APIRouter(prefix="/api/v1/bank-accounts", tags=["bank-accounts"])


@router.get("")
async def list_bank_accounts(
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("bank-accounts:read")),
):
    """List all bank accounts for the current tenant."""
    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:
        return await bank_account_service.list_bank_accounts(db, tenant_id, 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_bank_account(
    body: BankAccountCreate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("bank-accounts:write")),
):
    """Create a new bank account."""
    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()
    try:
        return await bank_account_service.create_bank_account(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("/{account_id}")
async def update_bank_account(
    account_id: str,
    body: BankAccountUpdate,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("bank-accounts:write")),
):
    """Update a bank account."""
    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(account_id)
    except ValueError:
        raise HTTPException(400, detail={"detail": "Invalid account_id", "code": "invalid_id"}) from None

    data = body.model_dump(exclude_unset=True)
    try:
        result = await bank_account_service.update_bank_account(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": "Bank account not found", "code": "not_found"})
    return result


@router.delete("/{account_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_bank_account(
    account_id: str,
    db: AsyncSession = Depends(get_db),
    current_user: dict = Depends(require_permission("bank-accounts:write")),
):
    """Soft-delete a bank account."""
    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(account_id)
    except ValueError:
        raise HTTPException(400, detail={"detail": "Invalid account_id", "code": "invalid_id"}) from None

    try:
        deleted = await bank_account_service.delete_bank_account(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": "Bank account not found", "code": "not_found"})