import re
import unicodedata

import pytest

from sdlc_hub.modules.jira import commands, mirror
from sdlc_hub.modules.jira.commands import CommandError

NOW = "strftime('%Y-%m-%dT%H:%M:%S.000+0300', 'now')"


def test_validate_ok_and_tail_keys():
    cmds = commands.validate([
        {"type": "ensure_issue", "params": {"temp_key": "new:60", "issue_type": "task", "summary": "Т"}},
        {"type": "ensure_link", "params": {"source": "new:60", "target": "A-1", "link_type": "связанные"}},
        {"type": "refresh", "params": {"keys": ["A-1", "new:60"]}},
    ])
    assert [c["type"] for c in cmds] == ["ensure_issue", "ensure_link", "refresh"]
    assert commands.referenced_keys(cmds[1]) == ["new:60", "A-1"]
    assert commands.temp_keys_used(cmds[1]) == ["new:60"]
    assert commands.temp_keys_used(cmds[0]) == []
    assert commands.temp_keys_used(cmds[2]) == ["new:60"]


@pytest.mark.parametrize("bad, msg", [
    ([], "без команд"),
    ([{"type": "ensure_all"}], "неизвестный тип"),
    ([{"type": "ensure_fields", "params": {"key": "A-1"}}], "без полей"),
    ([{"type": "ensure_fields", "params": {"key": "A-1", "duedate": "2026-10-23", "foo": 1}}], "лишние параметры"),
    ([{"type": "ensure_status", "params": {"key": "A-1"}}], "нет target"),
    ([{"type": "refresh", "params": {}}], "без keys и jql"),
    ([{"type": "ensure_link", "params": {"source": "new:3", "target": "A-1", "link_type": "связанные"}}], "не объявлен"),
    ([{"type": "ensure_issue", "params": {"temp_key": "A-1", "issue_type": "task", "summary": "x"}}], "new:<n>"),
    ([{"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "story", "summary": "x"}}],
     "task, epic или bug"),
    ([{"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": "x"}},
      {"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": "y"}}], "уже объявлен"),
])
def test_validate_errors(bad, msg):
    with pytest.raises(CommandError, match=msg):
        commands.validate(bad)


def test_missing_param_error_names_expected():
    """Клиент со старым описанием исправляет пакет с одной попытки (#44): ensure_status {key, status}."""
    with pytest.raises(CommandError) as e:
        commands.validate([{"type": "ensure_status", "params": {"key": "A-1", "status": "Готово"}}])
    assert str(e.value) == "команда 1 (ensure_status): нет target; ожидаются key, target"


def test_unknown_param_error_names_expected():
    with pytest.raises(CommandError) as e:
        commands.validate([{"type": "ensure_sprint", "params": {"key": "A-1", "sprint": "Спринт 2", "board": "1"}}])
    assert str(e.value) == "команда 1 (ensure_sprint): лишние параметры board; ожидаются key, sprint"
    with pytest.raises(CommandError) as e:
        commands.validate([{"type": "ensure_link", "params": {"source": "A-1", "target": "A-2", "link_type": "связанные",
                                                              "force": True}}])
    assert str(e.value) == ("команда 1 (ensure_link): лишние параметры force; "
                            "ожидаются source, target, link_type; необязательные replace")


def test_validate_accepts_bug_issue_type():
    """bug-and-attachments: тип «Ошибка» — issue_type = bug; наличие настройки проверяет постановка (queue)."""
    cmds = commands.validate([{"type": "ensure_issue", "params": {
        "temp_key": "new:1", "issue_type": "bug", "summary": "ОСВ 60 не распознана", "labels": ["AWPCA"]}}])
    assert cmds[0]["params"]["issue_type"] == "bug"
    assert commands.SPEC["ensure_issue"]["hints"]["issue_type"] == "task|epic|bug"


ABC = "ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad"     # sha256("abc")


def test_ensure_attachment_contract():
    ok = commands.validate([
        {"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "bug", "summary": "Ошибка"}},
        {"type": "ensure_attachment", "params": {"key": "new:1", "file": ABC, "filename": "ОСВ 60.xlsx"}}])
    assert commands.referenced_keys(ok[1]) == ["new:1"] and commands.temp_keys_used(ok[1]) == ["new:1"]
    assert "ensure_attachment" in commands.WRITE_TYPES
    assert ("- ensure_attachment: key, file (sha256 из POST /files; в MCP — path к локальному файлу), "
            "filename (имя вложения)") in commands.describe().splitlines()
    with pytest.raises(CommandError) as e:
        commands.validate([{"type": "ensure_attachment", "params": {"key": "A-1", "file": ABC}}])
    assert str(e.value) == "команда 1 (ensure_attachment): нет filename; ожидаются key, file, filename"
    with pytest.raises(CommandError) as e:
        commands.validate([{"type": "ensure_attachment", "params": {"key": "A-1", "file": ABC, "filename": "a", "size": 3}}])
    assert str(e.value) == "команда 1 (ensure_attachment): лишние параметры size; ожидаются key, file, filename"
    with pytest.raises(CommandError, match="file — строка"):
        commands.validate([{"type": "ensure_attachment", "params": {"key": "A-1", "file": 5, "filename": "a"}}])


def test_spec_hints_name_known_params():
    for ctype, spec in commands.SPEC.items():
        assert set(spec.get("hints", {})) <= set(spec["required"]) | set(spec["optional"]), ctype


def test_substitute_and_estimate():
    p = commands.substitute("ensure_link", {"source": "new:60", "target": "A-1", "link_type": "связанные"}, {"new:60": "A-9"})
    assert p["source"] == "A-9"
    p = commands.substitute("refresh", {"keys": ["new:60", "A-1"]}, {"new:60": "A-9"})
    assert p["keys"] == ["A-9", "A-1"]
    p = commands.substitute("ensure_issue", {"temp_key": "new:60", "issue_type": "task", "summary": "x", "epic_key": "new:2"},
                            {"new:2": "A-7", "new:60": "A-9"})
    assert p["temp_key"] == "new:60" and p["epic_key"] == "A-7"


@pytest.fixture
def conn(open_db):
    """Зеркало в памяти: A-1 (Готово, Спринт 2, метки AWPCA и kind-dev) и A-2, связь A-1 → A-2; закрывается после теста."""
    c = open_db()
    mirror.apply_state(c, [
        {"key": "A-1", "summary": "Тема", "status": "Готово", "priority": "Высокий",
         "duedate": "2026-10-23", "labels": ["AWPCA", "kind-dev"], "sprint": "Спринт 2",
         "created": "2026-10-10T10:00:00.000+0300", "assignee": "ivanov", "reporter": "petrov"},
        {"key": "A-2", "summary": "Вторая", "status": "Разработка", "created": "2026-10-10T11:00:00.000+0300"},
    ], [{"source_key": "A-1", "target_key": "A-2", "link_type": "ASUPR_Связанные"}])
    return c


LT = {"связанные": "ASUPR_Связанные", "блокирует начало": "ASUPR_Блокер_Начала"}


@pytest.mark.parametrize("cmd, expected", [
    ({"type": "ensure_fields", "params": {"key": "A-1", "duedate": "2026-10-23", "priority": "Высокий"}}, True),
    ({"type": "ensure_fields", "params": {"key": "A-1", "duedate": "2026-10-24"}}, False),
    ({"type": "ensure_fields", "params": {"key": "A-1", "labels_add": ["kind-dev"], "labels_remove": ["fact-done"]}}, True),
    ({"type": "ensure_fields", "params": {"key": "A-1", "labels_remove": ["kind-dev"]}}, False),
    ({"type": "ensure_status", "params": {"key": "A-1", "target": ["Разработка", "Готово"]}}, True),
    ({"type": "ensure_status", "params": {"key": "A-1", "target": "Разработка"}}, False),
    ({"type": "ensure_link", "params": {"source": "A-1", "target": "A-2", "link_type": "связанные"}}, True),
    ({"type": "ensure_link", "params": {"source": "A-1", "target": "A-2", "link_type": "блокирует начало"}}, False),
    ({"type": "ensure_link", "params": {"source": "A-2", "target": "A-1", "link_type": "связанные"}}, False),
    ({"type": "ensure_sprint", "params": {"key": "A-1", "sprint": "Спринт 2"}}, True),
    ({"type": "ensure_sprint", "params": {"key": "A-1", "sprint": "backlog"}}, False),
    ({"type": "ensure_comment", "params": {"key": "A-1", "marker": "m", "body": "b"}}, False),
    ({"type": "ensure_attachment", "params": {"key": "A-1", "file": "a" * 64, "filename": "a.xlsx"}}, False),
    ({"type": "refresh", "params": {"keys": ["A-1"]}}, False),
    ({"type": "ensure_fields", "params": {"key": "A-404", "duedate": "2026-10-23"}}, False),
])
def test_check_confirmed(conn, cmd, expected):
    ok, _ = commands.check_confirmed(conn, cmd, LT)
    assert ok is expected


def test_ensure_link_reverse_direction_with_both_keys_in_mirror(conn):
    # A-1 -> A-2 есть, спрашиваем A-2 -> A-1 при обоих ключах в зеркале: обратная связь — конфликт
    ok, _ = commands.check_confirmed(conn, {"type": "ensure_link", "params": {"source": "A-2", "target": "A-1", "link_type": "связанные"}}, LT)
    assert ok is False


def test_ensure_link_conflict_other_type_blocks_confirmation(conn):
    conn.execute("INSERT INTO issue_link(source_key, target_key, link_type) VALUES ('A-1', 'A-2', 'ASUPR_Блокер_Начала')")
    ok, _ = commands.check_confirmed(conn, {"type": "ensure_link", "params": {"source": "A-1", "target": "A-2", "link_type": "связанные"}}, LT)
    assert ok is False


def test_ensure_link_conflict_reverse_blocks_confirmation(conn):
    conn.execute("INSERT INTO issue_link(source_key, target_key, link_type) VALUES ('A-2', 'A-1', 'ASUPR_Связанные')")
    ok, _ = commands.check_confirmed(conn, {"type": "ensure_link", "params": {"source": "A-1", "target": "A-2", "link_type": "связанные"}}, LT)
    assert ok is False


def _ensure_issue(summary):
    return {"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": summary}}


def test_ensure_issue_never_confirmed_by_state(conn):
    """bridge-reliability, решение 4: потерянный отчёт ensure_issue закрывается довыдачей, не сверкой с зеркалом."""
    conn.execute(f"UPDATE issue SET created = {NOW} WHERE key = 'A-1'")
    assert commands.check_confirmed(conn, _ensure_issue("Тема"), LT) == (False, None)


def test_validate_rejects_duplicate_issue_summary():
    cmds = [{"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": "Отчёт"}},
            {"type": "ensure_issue", "params": {"temp_key": "new:2", "issue_type": "task", "summary": " Отчёт "}},
            {"type": "ensure_issue", "params": {"temp_key": "new:3", "issue_type": "task", "summary": "отчёт"}}]
    with pytest.raises(commands.CommandError) as e:
        commands.validate(cmds)
    assert "повторяется тема ensure_issue: «Отчёт»" in str(e.value)
    commands.validate([cmds[0], cmds[2]])                                # регистр различается — пакет допустим


@pytest.mark.parametrize("cmd, name", [
    ({"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": 42}}, "summary"),
    ({"type": "ensure_fields", "params": {"key": "A-1", "labels_add": "AWPCA"}}, "labels_add"),
    ({"type": "ensure_fields", "params": {"key": "A-1", "labels_remove": ["x", 1]}}, "labels_remove"),
    ({"type": "ensure_fields", "params": {"key": ["A-1"], "duedate": "2026-10-23"}}, "key"),
    ({"type": "ensure_comment", "params": {"key": "A-1", "marker": "m", "body": {"t": 1}}}, "body"),
    ({"type": "ensure_status", "params": {"key": "A-1", "target": 5}}, "target"),
    ({"type": "ensure_status", "params": {"key": "A-1", "target": ["Разработка", 2]}}, "target"),
    ({"type": "ensure_link", "params": {"source": "A-1", "target": "A-2", "link_type": "связанные", "replace": "да"}}, "replace"),
    ({"type": "refresh", "params": {"keys": "A-1"}}, "keys"),
])
def test_validate_rejects_wrong_types(cmd, name):
    with pytest.raises(commands.CommandError) as e:
        commands.validate([cmd])
    assert name in str(e.value)


def test_validate_accepts_null_for_clearable_and_path_target():
    out = commands.validate([
        {"type": "ensure_fields", "params": {"key": "A-1", "assignee": None, "epic_key": None, "duedate": None}},
        {"type": "ensure_status", "params": {"key": "A-1", "target": ["Разработка", "Готово"]}},
        {"type": "ensure_link", "params": {"source": "A-1", "target": "A-2", "link_type": "связанные", "replace": True}},
    ])
    assert len(out) == 3


@pytest.mark.parametrize("mirror_value, param, expected", [
    ("a\r\nb", "a\nb", True), ("a\nb", "a\r\nb", True), ("a\r\nb\r\n", "a\nb\n", True),
    ("a\r\nb", "a b", False), (None, "", True), ("", None, True), ("a\rb", "a\nb", False),
])
def test_ensure_fields_text_compare_ignores_crlf(conn, mirror_value, param, expected):
    """O-9 #16, решение 11: CRLF и LF не различаются, null и пустая строка равны; одиночный CR — другой текст.
    summary с CRLF в зеркале и LF в команде — в каждом случае: сравнение одно для всех строковых полей."""
    conn.execute("UPDATE issue SET description = ?, summary = ? WHERE key = 'A-1'", (mirror_value, "x\r\ny"))
    ok, _ = commands.check_confirmed(conn, {"type": "ensure_fields",
                                            "params": {"key": "A-1", "description": param, "summary": "x\ny"}}, LT)
    assert ok is expected


def test_ensure_fields_summary_difference_is_detected(conn):
    """T4.1 #32: CRLF в summary игнорируется, но реальное расхождение текста — False."""
    conn.execute("UPDATE issue SET summary = ? WHERE key = 'A-1'", ("x\r\ny",))
    ok, _ = commands.check_confirmed(conn, {"type": "ensure_fields",
                                            "params": {"key": "A-1", "summary": "x\nz"}}, LT)
    assert ok is False


@pytest.mark.parametrize("ctype, name, value, msg", [
    ("ensure_fields", "duedate", True, "duedate — строка"),
    ("ensure_fields", "labels_add", "AWPCA", "labels_add — список строк"),
    ("ensure_fields", "labels_add", ["x", 1], "labels_add — список строк"),
    ("ensure_link", "replace", "да", "replace — true или false"),
    ("ensure_status", "target", 5, "target — строка или список строк"),
    ("ensure_status", "target", ["Разработка", "Готово"], None),
    ("ensure_status", "target", "Готово", None),
    ("ensure_fields", "labels_add", [], None),
    ("ensure_fields", "assignee", None, None),
    ("ensure_link", "replace", False, None),
])
def test_type_error_messages(ctype, name, value, msg):
    """T3.1 #16, решение 15: _type_error по веткам — текст ошибки для каждого вида параметра (до и после правки один)."""
    assert commands._type_error(ctype, name, value) == msg


@pytest.mark.parametrize("cmd, name", [
    ({"type": "ensure_fields", "params": {"key": "A-1", "duedate": True}}, "duedate"),
    ({"type": "ensure_comment", "params": {"key": "A-1", "marker": "m", "body": False}}, "body"),
    ({"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": True}}, "summary"),
])
def test_validate_rejects_bool_in_string_param(cmd, name):
    """T3.2 #16: true/false в строковом параметре — 422 с именем параметра, а не запись «True» в Jira."""
    with pytest.raises(CommandError, match=f"{name} — строка"):
        commands.validate([cmd])


def test_validate_empty_list_params():
    """T3.2 #16: [] в необязательном списке допустим; [] в обязательном или единственном — как отсутствие."""
    out = commands.validate([{"type": "ensure_fields", "params": {"key": "A-1", "labels_add": [], "labels_remove": []}}])
    assert out[0]["params"] == {"key": "A-1", "labels_add": [], "labels_remove": []}
    with pytest.raises(CommandError, match="нет target"):
        commands.validate([{"type": "ensure_status", "params": {"key": "A-1", "target": []}}])
    with pytest.raises(CommandError, match="refresh без keys и jql"):
        commands.validate([{"type": "refresh", "params": {"keys": []}}])


def test_fetch_not_confirmed_by_state(conn):
    ok, result = commands.check_confirmed(conn, {"type": "fetch_attachment", "params": {"key": "A-1", "attachment_id": "5"}}, LT)
    assert (ok, result) == (False, None)
    assert "fetch_attachment" not in commands.WRITE_TYPES
    assert commands.SPEC["fetch_attachment"]["required"] == ["key", "attachment_id"]


META = {"type": "ensure_sprint_meta", "params": {"sprint": "AWPCA_Sprint_4", "start_date": "2026-10-28", "end_date": "2026-11-11", "goal": "свод ВГО"}}
def state(**p): return {"type": "ensure_sprint_state", "params": {"sprint": "AWPCA_Sprint_3_Corrections", **p}}
def rank(**p):  return {"type": "ensure_rank", "params": {"key": "AURORA-1612", **p}}

def test_new_types_validate_ok():
    out = commands.validate([META, state(state="active"), state(state="closed", move_open_to="backlog"), rank(before="AURORA-1601"),
                             {"type": "ensure_fields", "params": {"key": "A-1", "story_points": 2.5}},
                             {"type": "ensure_fields", "params": {"key": "A-1", "story_points": None}}])
    assert [c["type"] for c in out][:4] == ["ensure_sprint_meta", "ensure_sprint_state", "ensure_sprint_state", "ensure_rank"]

@pytest.mark.parametrize("cmd, msg", [
    ({**META, "params": {**META["params"], "start_date": "28.10.2026"}}, "start_date — дата ГГГГ-ММ-ДД"),
    ({**META, "params": {**META["params"], "end_date": "2026-02-30"}}, "end_date — дата ГГГГ-ММ-ДД"),
    ({**META, "params": {**META["params"], "start_date": "2026-11-12"}}, "start_date позже end_date"),
    ({"type": "ensure_sprint_meta", "params": {"sprint": "  "}}, "нет sprint; ожидаются sprint"),
    ({"type": "ensure_sprint_meta", "params": {"sprint": "S", "rename_to": " "}}, "rename_to — непустое имя"),
    ({"type": "ensure_sprint_meta", "params": {"sprint": "S", "board_id": 4216}}, "лишние параметры board_id"),
    (state(state="open"), "state — active или closed"),
    (state(state="closed"), "move_open_to обязателен при state = closed"),
    (state(state="active", move_open_to="backlog"), "move_open_to — только при state = closed"),
    (state(state="closed", move_open_to="AWPCA_Sprint_3_Corrections"), "move_open_to — другой спринт"),
    (rank(), "ровно одно из before, after"), (rank(before="A-2", after="A-3"), "ровно одно из before, after"),
    (rank(before="AURORA-1612"), "before — другая задача"), (rank(after="AURORA-1612"), "after — другая задача"),
    ({"type": "ensure_fields", "params": {"key": "A-1", "story_points": -1}}, "story_points — число ≥ 0 или null"),
    ({"type": "ensure_fields", "params": {"key": "A-1", "story_points": "3"}}, "story_points — число ≥ 0 или null"),
    ({"type": "ensure_fields", "params": {"key": "A-1", "story_points": True}}, "story_points — число ≥ 0 или null"),
    ({"type": "ensure_fields", "params": {"key": "A-1", "story_points": float("nan")}}, "story_points — число ≥ 0 или null"),   # Review Focus 5
    ({"type": "ensure_fields", "params": {"key": "A-1", "story_points": float("inf")}}, "story_points — число ≥ 0 или null"),
    ({"type": "ensure_fields", "params": {"key": "A-1", "story_points": 10**400}}, "story_points — число ≥ 0 или null"),   # OverflowError
    ({"type": "ensure_sprint_state", "params": {"sprint": "  ", "state": "active"}}, "нет sprint; ожидаются sprint, state"),
    (state(state="closed", move_open_to="   "), "move_open_to обязателен при state = closed"),
    (state(state="closed", move_open_to=" AWPCA_Sprint_3_Corrections "), "move_open_to — другой спринт"),
    (state(state="active", move_open_to="x"), "move_open_to — только при state = closed"),
    (rank(before=" ", after=" "), "ровно одно из before, after"),
    (rank(before=" AURORA-1612 "), "before — другая задача"),
])
def test_new_types_errors(cmd, msg):
    with pytest.raises(CommandError, match=re.escape(msg)):
        commands.validate([cmd])

def test_blank_state_move_open_to_is_unset_when_active():       # R-31: пробельная строка — «не задано»
    assert commands.validate([state(state="active", move_open_to="  ")])
    assert commands.validate([rank(before="A-2", after="  ")])

def test_rank_temp_keys():
    ok = [{"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": "Н"}}, rank(after="new:1")]
    assert commands.temp_keys_used(commands.validate(ok)[1]) == ["new:1"]
    with pytest.raises(CommandError, match="временный ключ new:2 не объявлен"):
        commands.validate([rank(before="new:2")])

def test_new_types_not_confirmed_by_state(conn):          # design #18
    for cmd in (META, state(state="active"), rank(before="A-2")):
        assert commands.check_confirmed(conn, cmd, {}) == (False, None)

def test_story_points_confirmation(conn):                 # R-16
    mirror.apply_state(conn, [{"key": "A-1", "labels": [], "story_points": 3}, {"key": "A-2", "labels": []}], [])
    sp = lambda key, v: {"type": "ensure_fields", "params": {"key": key, "story_points": v}}
    assert commands.check_confirmed(conn, sp("A-1", 3), {})[0] is True
    assert commands.check_confirmed(conn, sp("A-2", 0), {})[0] is False
    assert commands.check_confirmed(conn, sp("A-2", None), {})[0] is True


def test_normalize_trims_identifiers_keeps_text():
    out = commands.validate([{"type": "ensure_comment", "params": {"key": " A-1", "marker": "Итог ", "body": "  отступ\n"}}])
    assert out[0]["params"] == {"key": "A-1", "marker": "Итог", "body": "  отступ\n"}


def test_normalize_rank_before():
    out = commands.validate([{"type": "ensure_rank", "params": {"key": "A-1", "before": " A-2 "}}])
    assert out[0]["params"] == {"key": "A-1", "before": "A-2"}


def test_normalize_temp_key_with_spaces():
    out = commands.validate([
        {"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": "Т"}},
        {"type": "ensure_fields", "params": {"key": "A-5", "epic_key": " new:1 "}},
        {"type": "refresh", "params": {"keys": [" new:1"]}}])
    assert out[1]["params"]["epic_key"] == "new:1" and out[2]["params"]["keys"] == ["new:1"]


def test_normalize_blank_required_is_missing():
    with pytest.raises(CommandError, match=r"^команда 1 \(ensure_status\): нет key; ожидаются key, target"):
        commands.validate([{"type": "ensure_status", "params": {"key": "   ", "target": "Готово"}}])


def test_normalize_blank_list_item():
    with pytest.raises(CommandError, match="labels_add — без пустых элементов"):
        commands.validate([{"type": "ensure_fields", "params": {"key": "A-1", "labels_add": ["x", "  "]}}])


def test_normalize_filename_nfc():
    nfd = unicodedata.normalize("NFD", "отчёт.pdf")
    assert nfd != unicodedata.normalize("NFC", "отчёт.pdf")
    out = commands.validate([{"type": "ensure_attachment", "params": {"key": "A-1", "file": "a" * 64, "filename": f" {nfd} "}}])
    assert out[0]["params"]["filename"] == unicodedata.normalize("NFC", "отчёт.pdf")


def test_normalize_does_not_mutate_input():
    params = {"key": " A-1 ", "target": [" В работе ", "Готово "]}
    out = commands.validate([{"type": "ensure_status", "params": params}])
    assert params["key"] == " A-1 " and out[0]["params"]["target"] == ["В работе", "Готово"]


def test_normalize_summary_description_goal_untouched():
    out = commands.validate([{"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task",
                                                                  "summary": " Т ", "description": "  d\n"}}])
    assert out[0]["params"]["summary"] == " Т " and out[0]["params"]["description"] == "  d\n"


def test_is_digits_ascii_only():
    from sdlc_hub.core.http import is_digits
    assert is_digits("123") is True
    for bad in ("", "²", "١٢", "12a", 7, None):
        assert is_digits(bad) is False


@pytest.mark.parametrize("field", ["assignee", "epic_key", "priority", "duedate", "planned_start"])
def test_ensure_fields_whitespace_only_rejected(field):
    """I-1 (R-8): «   » после обрезки стало бы «» («очистить поле») — отвергается."""
    with pytest.raises(CommandError) as e:
        commands.validate([{"type": "ensure_fields", "params": {"key": "A-1", field: "   "}}])
    assert f'{field} — из одних пробелов; для очистки — "" или null' in str(e.value)
    assert "команда 1 (ensure_fields)" in str(e.value)


@pytest.mark.parametrize("value", ["", None])
def test_ensure_fields_explicit_clear_accepted(value):
    cmds = commands.validate([{"type": "ensure_fields", "params": {"key": "A-1", "assignee": value}}])
    assert cmds[0]["params"]["assignee"] == value


def test_rank_before_after_whitespace_still_means_not_given():
    cmds = commands.validate([{"type": "ensure_rank", "params": {"key": "A-1", "before": "A-2", "after": "  "}}])
    assert cmds[0]["params"]["after"] == ""