from datetime import date
from decimal import Decimal

from errors import DiligenceError, NodeError
from job import outcome_from_run, run_batch
from persist import KIND_DILIGENCE, KIND_FAIL, KIND_OK, ContractOutcome, build_save
from repo import MemoryContractRepo, PurchaseContractRow


def _row(**overrides) -> PurchaseContractRow:
    data = dict(
        fid=1,
        oms_id=2026100501,
        supplier_id="SUP001",
        supplier_name="示例供应商",
        contract_sign_date=date(2026, 10, 1),
        contract_start_date=date(2026, 10, 2),
        contract_end_date=date(2027, 9, 30),
        payment_term=90,
        goods_id="G0001",
        goods_name="阿莫西林胶囊",
        reg_no="国药准字H20201234",
        spec="0.25g*24粒",
        unit="盒",
        qty=Decimal("10.0000"),
        unit_price=Decimal("100.0000"),
        purchaser_id="P001",
        purchaser_name="张三",
        planner_id="PL001",
        planner_name="李四",
        contract_entry_status=None,
        contract_no=None,
        process_status=0,
        org_code="901",
        goods_mdm_code="QX0100167583",
        supplier_mdm_code="DW0100046361",
    )
    data.update(overrides)
    return PurchaseContractRow(**data)


def test_claim_pending_sets_processing_and_skips_protocol_rerun():
    repo = MemoryContractRepo(
        [
            _row(),
            _row(fid=2, oms_id=2026100502, process_status=1),
            _row(fid=3, oms_id=2026100503, contract_entry_status=0, contract_no="HT-OLD"),
        ]
    )
    claimed = repo.claim_pending()
    assert [row.fid for row in claimed] == [1]
    assert repo.table3[1].process_status == 3
    assert repo.table3[3].process_status == 0


def test_save_group_inserts_one_table4_row_per_oms_id():
    repo = MemoryContractRepo(
        [
            _row(),
            _row(fid=2, oms_id=2026100501, goods_id="G0002"),
            _row(fid=3, oms_id=2026100502, goods_id="G0003"),
        ]
    )
    repo.claim_pending()
    outcome = ContractOutcome(KIND_OK, "HT20261005001", None)
    payload = build_save(list(repo.table3.values()), outcome)
    repo.save_group(payload)
    assert [row["oms_id"] for row in repo.table4] == [2026100501, 2026100502]
    assert {row["contract_no"] for row in repo.table4} == {"HT20261005001"}
    assert {row["action_code"] for row in repo.table4} == {1}
    assert {row["contract_status"] for row in repo.table4} == {1}
    assert {row["push_status"] for row in repo.table4} == {0}
    assert repo.table3[1].process_status == 1
    assert repo.table3[3].process_status == 1


def test_job_merges_same_supplier_and_writes_table4():
    repo = MemoryContractRepo(
        [
            _row(),
            _row(fid=2, oms_id=2026100502, goods_id="G0002"),
            _row(fid=3, oms_id=2026100503, contract_entry_status=0, contract_no="HT-OLD"),
        ]
    )
    calls: list = []

    def runner(draft):
        calls.append(draft)
        return ContractOutcome(KIND_OK, "HT20261005001", None)

    run_batch(repo, runner=runner)
    assert len(calls) == 1
    assert [line.goods_code for line in calls[0].goods_lines] == [
        "QX0100167583",
        "QX0100167583",
    ]
    assert [line.mdm_code for line in calls[0].goods_lines] == [
        "QX0100167583",
        "QX0100167583",
    ]
    assert calls[0].customer_code == "DW0100046361"
    assert [row["oms_id"] for row in repo.table4] == [2026100501, 2026100502]
    assert {row["contract_no"] for row in repo.table4} == {"HT20261005001"}
    assert {row["action_code"] for row in repo.table4} == {1}
    assert {row["contract_status"] for row in repo.table4} == {1}
    assert {row["push_status"] for row in repo.table4} == {0}
    assert repo.table3[1].process_status == 1
    assert repo.table3[2].process_status == 1
    assert repo.table3[3].process_status == 0


def test_job_marks_diligence_fail():
    repo = MemoryContractRepo([_row()])

    def runner(draft):
        return ContractOutcome(KIND_DILIGENCE, None, "客户未尽调")

    run_batch(repo, runner=runner)
    assert repo.table3[1].process_status == 2
    assert "客户未尽调" in repo.table3[1].process_result
    assert repo.table4[0]["contract_status"] == 3
    assert repo.table4[0]["contract_no"] is None
    assert repo.table4[0]["contract_fail_reason"] == "客户未尽调"


def test_job_skips_runner_when_mdm_missing():
    repo = MemoryContractRepo([_row(supplier_mdm_code="")])
    called = {"n": 0}

    def runner(draft):
        called["n"] += 1
        return ContractOutcome(KIND_OK, "HT-X", None)

    run_batch(repo, runner=runner)
    assert called["n"] == 0
    assert repo.table3[1].process_status == 2
    assert "缺少供应商MDM码" in repo.table3[1].process_result


def test_outcome_from_run_maps_diligence():
    def run():
        raise DiligenceError("客户未尽调")

    out = outcome_from_run(run)
    assert out.kind == KIND_DILIGENCE
    assert out.reason == "客户未尽调"
    assert out.contract_no is None


def test_outcome_from_run_maps_empty_number_to_fail():
    out = outcome_from_run(lambda: "")
    assert out.kind == KIND_FAIL
    assert "未读取到真实合同编号" in (out.reason or "")


def test_outcome_from_run_ok():
    out = outcome_from_run(lambda: "HT9")
    assert out == ContractOutcome(KIND_OK, "HT9", None)


def test_outcome_from_run_maps_node_error():
    def run():
        raise NodeError("客商加载失败")

    out = outcome_from_run(run)
    assert out.kind == KIND_FAIL
    assert "客商加载失败" in (out.reason or "")