"""KIS poll_fill terminal-order detection (dcy-013 / REQ-012, issue #9).

inquire-daily-ccld marks a cancelled order with cncl_yn="Y" and an
exchange-rejected order with rjct_qty. These tests stub the HTTP layer (token
pre-seeded, httpx.get faked) and assert the FillStatus mapping.
"""

from __future__ import annotations

from datetime import UTC, datetime, timedelta

from trex_core.adapters.broker import kis as kis_mod
from trex_core.adapters.broker.kis import KISBroker

ODNO = "0000123456"


def _broker():
    b = KISBroker(
        "12345678-01",
        app_key="k",
        app_secret="s",
        base_url="https://openapivts.koreainvestment.com:29443",  # mock endpoint
    )
    b._token = "tok"
    b._token_exp = datetime.now(tz=UTC) + timedelta(hours=1)
    return b


class _Resp:
    def __init__(self, payload):
        self._payload = payload

    def json(self):
        return self._payload


def _fake_get(payload):
    def _get(*a, **k):
        return _Resp(payload)

    return _get


def _row(**kw):
    base = {
        "odno": ODNO,
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "N",
        "rjct_qty": "0",
        "ord_dt": "20260608",
        "ord_gno_brno": "06010",
        "pdno": "005930",
    }
    base.update(kw)
    return {"rt_cd": "0", "output1": [base]}


def test_full_external_cancel_maps_to_cancelled(monkeypatch):
    monkeypatch.setattr(kis_mod.httpx, "get", _fake_get(_row(tot_ccld_qty="0", cncl_yn="Y")))
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="sell", symbol="005930", order_date="20260608"
    )
    assert fs.state == "cancelled" and fs.is_terminal_reject and not fs.is_partial_cancel


def test_zero_fill_not_cancelled_stays_accepted(monkeypatch):
    monkeypatch.setattr(kis_mod.httpx, "get", _fake_get(_row(tot_ccld_qty="0", cncl_yn="N")))
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="sell", symbol="005930", order_date="20260608"
    )
    assert fs.state == "accepted" and not fs.is_terminal_reject


def test_zero_fill_full_rejection_maps_to_rejected(monkeypatch):
    monkeypatch.setattr(
        kis_mod.httpx,
        "get",
        _fake_get(
            _row(
                ord_qty="4",
                tot_ccld_qty="0",
                rmn_qty="0",
                rjct_qty="4",
                cncl_yn="",
            )
        ),
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="005930", order_date="20260608"
    )
    assert fs.state == "rejected" and fs.is_terminal_reject


def test_zero_fill_partial_rejection_does_not_infer_terminal(monkeypatch):
    monkeypatch.setattr(
        kis_mod.httpx,
        "get",
        _fake_get(_row(ord_qty="10", tot_ccld_qty="0", rjct_qty="4", cncl_yn="")),
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="005930", order_date="20260608"
    )
    assert fs.state == "accepted" and not fs.is_terminal_reject


def test_partial_fill_then_cancel_flags_partial_cancel(monkeypatch):
    monkeypatch.setattr(
        kis_mod.httpx,
        "get",
        _fake_get(_row(ord_qty="10", tot_ccld_qty="4", avg_prvs="70000", cncl_yn="Y")),
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="sell", symbol="005930", order_date="20260608"
    )
    assert fs.state == "partially_filled"
    assert fs.cancelled and fs.is_partial_cancel
    assert fs.filled_qty == 4 and fs.avg_price == 70000.0
    assert fs.execution_id == "kis-daily-ccld:20260608:06010:0000123456:4"


def test_full_fill_unaffected_by_cancel_flag(monkeypatch):
    monkeypatch.setattr(
        kis_mod.httpx,
        "get",
        _fake_get(_row(ord_qty="10", tot_ccld_qty="10", avg_prvs="70000", cncl_yn="N")),
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="sell", symbol="005930", order_date="20260608"
    )
    assert fs.is_filled and fs.filled_qty == 10 and not fs.is_partial_cancel


# ── Regression: KIS child cancel row (orgn_odno) ─────────────────────────────

def _payload_with_child_cancel(parent_odno: str, child_odno: str, ord_qty: str = "89", symbol: str = "225190"):
    """Simulate KIS returning original row (cncl_yn='') + separate cancel child."""
    parent = {
        "odno": parent_odno,
        "orgn_odno": "",
        "ord_qty": ord_qty,
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "rmn_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": symbol,
    }
    child = {
        "odno": child_odno,
        "orgn_odno": parent_odno,
        "ord_qty": ord_qty,
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "Y",
        "rjct_qty": "0",
        "rmn_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": symbol,
    }
    return {"rt_cd": "0", "output1": [parent, child]}


def test_child_cancel_row_orgn_odno_maps_to_cancelled(monkeypatch):
    """KIS child row with orgn_odno=<original> + cncl_yn=Y → full cancel."""
    payload = _payload_with_child_cancel(ODNO, "0000123457")
    monkeypatch.setattr(kis_mod.httpx, "get", _fake_get(payload))
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    assert fs.state == "cancelled", f"expected cancelled, got {fs.state}"
    assert fs.is_terminal_reject


def test_correction_child_row_not_misclassified_as_cancel(monkeypatch):
    """Correction child (cncl_yn!='Y') must not be treated as a cancel.

    Issue #81 AC: a correction/replacement child means the order is superseded
    but we cannot safely determine terminal status without the replacement
    identity → fail-closed as 'unknown' (not 'accepted/open_confirmed').
    """
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    correction_child = {
        "odno": "0000123458",
        "orgn_odno": ODNO,
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "N",  # correction, not cancel
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent, correction_child]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    # Correction child means replacement identity is unresolved → fail-closed
    assert fs.state == "unknown", f"expected unknown, got {fs.state}"
    raw = fs.raw if isinstance(fs.raw, dict) else {}
    assert raw.get("reason") == "correction_child_present_unresolved"
    # Must NOT be open_confirmed — that would allow new orders on the same slot
    assert not raw.get("order_open_confirmed", False)


def test_partial_fill_with_child_cancel_row(monkeypatch):
    """Partial fill on parent + cancel child → partial_cancel."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "4",
        "avg_prvs": "70000",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    child = {
        "odno": "0000123459",
        "orgn_odno": ODNO,
        "ord_qty": "6",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "Y",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent, child]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="sell", symbol="225190", order_date="20260901"
    )
    assert fs.state == "partially_filled"
    assert fs.cancelled and fs.is_partial_cancel
    assert fs.filled_qty == 4


# ── Regression: identity mismatch / ambiguous child rows ─────────────────────

def test_child_cancel_mismatched_branch_is_ignored(monkeypatch):
    """Cancel child from a different branch (ord_gno_brno) must not affect parent."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    child_wrong_branch = {
        "odno": "0000199999",
        "orgn_odno": ODNO,
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "Y",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "99999",  # different branch
        "pdno": "225190",
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent, child_wrong_branch]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    # Child has wrong branch → not a matching cancel → parent stays accepted
    assert fs.state == "accepted", f"expected accepted (mismatch branch), got {fs.state}"


def test_child_cancel_mismatched_symbol_is_ignored(monkeypatch):
    """Cancel child with different symbol (pdno) must not affect parent."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    child_wrong_symbol = {
        "odno": "0000199998",
        "orgn_odno": ODNO,
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "Y",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "000660",  # different symbol
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent, child_wrong_symbol]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    assert fs.state == "accepted", f"expected accepted (mismatch symbol), got {fs.state}"


def test_child_cancel_mismatched_date_is_ignored(monkeypatch):
    """Cancel child with different ord_dt must not affect parent."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    child_wrong_date = {
        "odno": "0000199997",
        "orgn_odno": ODNO,
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "Y",
        "rjct_qty": "0",
        "ord_dt": "20260831",  # different date
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent, child_wrong_date]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    assert fs.state == "accepted", f"expected accepted (mismatch date), got {fs.state}"


def test_ambiguous_multiple_child_cancel_rows_return_unknown(monkeypatch):
    """Two matching cancel children → ambiguous identity → fail-closed as unknown."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    child1 = {**parent, "odno": "0000123460", "orgn_odno": ODNO, "cncl_yn": "Y", "ord_qty": "10"}
    child2 = {**parent, "odno": "0000123461", "orgn_odno": ODNO, "cncl_yn": "Y", "ord_qty": "10"}
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent, child1, child2]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    assert fs.state == "unknown", f"expected unknown (ambiguous children), got {fs.state}"
    raw = fs.raw if isinstance(fs.raw, dict) else {}
    assert raw.get("reason") == "child_cancel_ambiguous"


# ── Regression: parent row identity mismatch with request ────────────────────

def test_parent_row_wrong_branch_returns_unknown(monkeypatch):
    """Parent row with wrong ord_gno_brno (branch) relative to broker_order_id → unknown."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "99999",  # wrong branch — request has 06010
        "pdno": "225190",
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent]})
    )
    # broker_order_id encodes branch 06010, but row has 99999
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    assert fs.state == "unknown", f"expected unknown (wrong parent branch), got {fs.state}"
    raw = fs.raw if isinstance(fs.raw, dict) else {}
    assert "mismatch" in raw.get("reason", "")


def test_parent_row_wrong_date_returns_unknown(monkeypatch):
    """Parent row with wrong ord_dt relative to order_date arg → unknown."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260831",  # wrong date — request has 20260901
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    assert fs.state == "unknown", f"expected unknown (wrong parent date), got {fs.state}"
    raw = fs.raw if isinstance(fs.raw, dict) else {}
    assert "mismatch" in raw.get("reason", "")


def test_parent_row_wrong_symbol_returns_unknown(monkeypatch):
    """Parent row with wrong pdno (symbol) relative to symbol arg → unknown."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "000660",  # wrong symbol — request has 225190
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    assert fs.state == "unknown", f"expected unknown (wrong parent symbol), got {fs.state}"
    raw = fs.raw if isinstance(fs.raw, dict) else {}
    assert "mismatch" in raw.get("reason", "")


def test_correction_child_wrong_identity_is_not_treated_as_correction(monkeypatch):
    """Correction child with wrong branch/date/symbol must not trigger correction_child_present_unresolved."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    unrelated_correction = {
        "odno": "0000199990",
        "orgn_odno": ODNO,
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "N",
        "rjct_qty": "0",
        "ord_dt": "20260831",   # different date → not related to our request
        "ord_gno_brno": "99999",  # different branch
        "pdno": "000660",         # different symbol
    }
    monkeypatch.setattr(
        kis_mod.httpx,
        "get",
        _fake_get({"rt_cd": "0", "output1": [parent, unrelated_correction]}),
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    # Unrelated correction must not cause correction_child_present_unresolved
    assert fs.state == "accepted", f"expected accepted (unrelated correction), got {fs.state}"
    raw = fs.raw if isinstance(fs.raw, dict) else {}
    assert raw.get("reason") != "correction_child_present_unresolved"


# ── Regression: parent identity boundary cases (missing / wrong-first / ambiguous) ─

def test_parent_missing_identity_fields_returns_unknown(monkeypatch):
    """Parent row with missing pdno and ord_dt → treated as identity mismatch (fail-closed)."""
    parent_no_identity = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "Y",   # would be cancelled if accepted
        "rjct_qty": "0",
        # ord_dt, ord_gno_brno, pdno intentionally absent
    }
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent_no_identity]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    # Missing identity → fail-closed, not terminal
    assert fs.state == "unknown", f"expected unknown (missing identity), got {fs.state}"
    assert not fs.is_terminal_reject


def test_child_cancel_missing_identity_fields_not_accepted_as_cancel(monkeypatch):
    """Cancel child with missing identity fields must NOT be accepted as matching child."""
    parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    child_no_identity = {
        "odno": "0000123461",
        "orgn_odno": ODNO,
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "Y",
        "rjct_qty": "0",
        # ord_dt, ord_gno_brno, pdno intentionally absent
    }
    monkeypatch.setattr(
        kis_mod.httpx,
        "get",
        _fake_get({"rt_cd": "0", "output1": [parent, child_no_identity]}),
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    # Child has missing identity → not a matching cancel; parent has no fill → accepted
    assert fs.state == "accepted", f"expected accepted (child missing identity), got {fs.state}"


def test_wrong_parent_first_exact_parent_later_finds_cancel(monkeypatch):
    """When the wrong-branch parent comes first, the exact parent+cancel child later must win."""
    wrong_parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "99999",   # wrong branch — comes first in list
        "pdno": "225190",
    }
    exact_parent = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",   # correct branch — comes second
        "pdno": "225190",
    }
    child = {
        "odno": "0000123462",
        "orgn_odno": ODNO,
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "Y",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    monkeypatch.setattr(
        kis_mod.httpx,
        "get",
        _fake_get({"rt_cd": "0", "output1": [wrong_parent, exact_parent, child]}),
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    # Must find the exact parent + cancel child even though wrong parent comes first
    assert fs.state == "cancelled", f"expected cancelled (exact parent later), got {fs.state}"


def test_ambiguous_exact_parents_returns_unknown(monkeypatch):
    """Two rows with identical exact identity → ambiguous parent → unknown."""
    parent1 = {
        "odno": ODNO,
        "orgn_odno": "",
        "ord_qty": "10",
        "tot_ccld_qty": "0",
        "avg_prvs": "0",
        "cncl_yn": "",
        "rjct_qty": "0",
        "ord_dt": "20260901",
        "ord_gno_brno": "06010",
        "pdno": "225190",
    }
    parent2 = {**parent1}  # exact duplicate
    monkeypatch.setattr(
        kis_mod.httpx, "get", _fake_get({"rt_cd": "0", "output1": [parent1, parent2]})
    )
    fs = _broker().poll_fill(
        f"06010:{ODNO}", side="buy", symbol="225190", order_date="20260901"
    )
    assert fs.state == "unknown", f"expected unknown (ambiguous parents), got {fs.state}"
    raw = fs.raw if isinstance(fs.raw, dict) else {}
    assert raw.get("reason") == "parent_identity_ambiguous"