# ============================================================
# 交期承诺看板的数据来源回退（固定产线通道 → 柔性通道）
# 现场现象：已经跑出柔性试排，但「交期分析」5 张订单整列显示"未排产"。
# 根因：due_view 只读 scheduleVersions / productionOrders，柔性版本不在这两张表里，
#       没有固定版本时 promised 恒为 None → risk 恒为 "none"。
# ============================================================
from __future__ import annotations

from server.aps_domain.views import due_view


def _so(order_id: int, order_no: str, delivery: str) -> dict:
    """最小销售订单行（due_view 只用到这几个字段）。"""
    return {
        "id": order_id, "orderNo": order_no, "customerName": "演示客户",
        "customerLevel": "A", "isRush": False, "deliveryDate": delivery,
        "status": "APPROVED",
    }


def _world(**overrides) -> dict:
    """默认：既没有固定版本，也没有柔性版本。"""
    world: dict = {
        "salesOrders": [
            _so(1, "SO-001", "2026-10-16"),
            _so(2, "SO-002", "2026-10-10"),
            _so(3, "SO-003", "2026-10-17"),
        ],
        "scheduleVersions": [], "productionOrders": [],
        "flexScheduleVersions": [], "flexVirtualLines": [],
    }
    world.update(overrides)
    return world


def test_fixed_channel_still_wins_when_present():
    """固定通道有版本时行为不变：不因存在柔性版本而改取柔性时间。"""
    rows = {r["orderNo"]: r for r in due_view(_world(
        scheduleVersions=[{"id": 7, "versionNo": "FV-7"}],
        productionOrders=[{"id": 1, "salesOrderId": 1, "schedulingVersionId": 7,
                           "plannedEndDate": "2026-10-15 12:00"}],
        flexScheduleVersions=[{"id": 3, "versionNo": "FLEX-3"}],
        flexVirtualLines=[{"versionId": 3, "orderNo": "SO-001",
                           "plannedEnd": "2026-10-09 08:00"}],
    ))}
    assert rows["SO-001"]["promisedEnd"] == "2026-10-15 12:00"
    assert rows["SO-002"]["risk"] == "none"                    # 该版本没有它的 PO


def test_flex_fallback_computes_commit_and_risk():
    """没有固定版本时回退柔性版本：承诺完成取该订单虚拟产线的最晚完成。"""
    rows = {r["orderNo"]: r for r in due_view(_world(
        flexScheduleVersions=[{"id": 3, "versionNo": "FLEX-3"}, {"id": 4, "versionNo": "FLEX-4"}],
        flexVirtualLines=[
            {"versionId": 4, "orderNo": "SO-001", "plannedEnd": "2026-10-14 09:00"},
            {"versionId": 4, "orderNo": "SO-001", "plannedEnd": "2026-10-16 09:00"},  # 同订单取最晚
            {"versionId": 3, "orderNo": "SO-002", "plannedEnd": "2026-10-01 09:00"},  # 旧版本不参与
            {"versionId": 4, "orderNo": "SO-003", "plannedEnd": "2026-10-20 09:00"},  # 晚于交期 → 超期
        ],
    ))}
    assert rows["SO-001"]["promisedEnd"] == "2026-10-16 09:00"
    assert rows["SO-001"]["marginHours"] == 9.0                # 交期 10-16 18:00 前 9 小时
    assert rows["SO-001"]["risk"] == "mid"
    assert rows["SO-002"]["promisedEnd"] is None               # 最新版本没排 → 仍是未排产
    assert rows["SO-002"]["risk"] == "none"
    assert rows["SO-003"]["marginHours"] == -63.0              # 10-20 09:00 比交期(10-17 18:00)晚 63 小时
    assert rows["SO-003"]["risk"] == "high"


def test_no_schedule_anywhere_keeps_empty_board():
    """两个通道都没有版本时不报错、也不编造承诺完成。"""
    rows = due_view(_world())
    assert [r["risk"] for r in rows] == ["none", "none", "none"]
    assert all(r["promisedEnd"] is None and r["marginHours"] is None for r in rows)


def test_cancelled_order_is_not_listed():
    world = _world()
    world["salesOrders"][1]["status"] = "CANCELLED"
    rows = due_view(world)
    assert [r["orderNo"] for r in rows] == ["SO-001", "SO-003"]