"""运输计划：内置山峡/云栋客户判定（合同可免）"""
from __future__ import annotations

from typing import Optional

from sqlalchemy.orm import Session

from app.models.pl_models import PlPlan, PlPlanDelivery, PlPlanLoad

INTERNAL_CUSTOMER_NAMES = frozenset(
    {
        "安庆市山峡化工有限公司",
        "安徽云栋化工有限公司",
    }
)


def is_internal_customer_name(name: Optional[str]) -> bool:
    return (name or "").strip() in INTERNAL_CUSTOMER_NAMES


def plan_requires_site_link(db: Session, *, tenant_no: str, plan: PlPlan) -> bool:
    """装货或送货段任一段客户为山峡/云栋时，需要生成现场链接。"""
    load = (
        db.query(PlPlanLoad)
        .filter(
            PlPlanLoad.plan_id == plan.id,
            PlPlanLoad.tenant_no == tenant_no,
            PlPlanLoad.del_flag == 0,
        )
        .first()
    )
    if load:
        if is_internal_customer_name(load.customer_name):
            return True
    elif is_internal_customer_name(plan.supplier_name):
        return True

    deliveries = (
        db.query(PlPlanDelivery)
        .filter(
            PlPlanDelivery.plan_id == plan.id,
            PlPlanDelivery.tenant_no == tenant_no,
            PlPlanDelivery.del_flag == 0,
        )
        .all()
    )
    if deliveries:
        return any(is_internal_customer_name(row.customer_name) for row in deliveries)
    return is_internal_customer_name(plan.customer_name) or is_internal_customer_name(
        plan.destination_name
    )