import pytest

from jira_hub import db, mirror, queue, settings
from jira_hub.commands import CommandError
from jira_hub.queue import ClaimedError

LT = {"связанные": "ASUPR_Связанные"}


def fresh():
    conn = db.connect(":memory:")
    settings.ensure_defaults(conn)
    settings.set_(conn, "link_types", LT)
    return conn


def fields(key, **extra):
    return {"type": "ensure_fields", "params": {"key": key, "duedate": "2026-10-23", **extra}}


def test_create_batch_adds_tail_refresh_and_estimate():
    conn = fresh()
    b = queue.create_batch(conn, "срок", "claude", [fields("A-1"), {"type": "ensure_comment", "params": {"key": "A-2", "marker": "m", "body": "b"}}])
    view = queue.batch_view(conn, b["id"])
    assert [c["type"] for c in view["commands"]] == ["ensure_fields", "ensure_comment", "refresh"]
    assert view["commands"][2]["params"] == {"keys": ["A-1", "A-2"]}
    assert b["estimate_seconds"] == 120 + 30 + 2 and b["count"] == 3
    assert view["status"] == "queued" and view["author"] == "claude"


def test_refresh_only_batch_has_no_tail():
    conn = fresh()
    b = queue.create_batch(conn, "обновить", "claude", [{"type": "refresh", "params": {"jql": "project = X"}}])
    assert b["count"] == 1
    with pytest.raises(CommandError):
        queue.create_batch(conn, "x", "claude", [{"type": "nope"}])


def test_claim_order_pause_and_report():
    conn = fresh()
    b1 = queue.create_batch(conn, "первый", "claude", [fields("A-1")])
    b2 = queue.create_batch(conn, "второй", "claude", [fields("A-2")])
    c = queue.claim(conn, agent_version=1, settings_version=1)
    assert c["type"] == "ensure_fields" and c["params"]["key"] == "A-1" and c["pause_seconds"] == 120 and c["batch_id"] == b1["id"]
    assert queue.claim(conn) is None                                  # одна команда в полёте
    assert queue.agent_view(conn)["current_command_id"] == c["id"]
    done = queue.report_result(conn, c["id"], "done", result={"changed": ["duedate"]}, jira_calls=2)
    assert done["status"] == "done" and done["jira_calls"] == 2
    again = queue.report_result(conn, c["id"], "failed", error="поздно")
    assert again["status"] == "done"                                   # повторный отчёт не меняет
    tail = queue.claim(conn)
    assert tail["type"] == "refresh" and tail["pause_seconds"] == 2
    assert conn.execute("SELECT kind, query FROM sync_run WHERE command_id = ?", (tail["id"],)).fetchone()["query"] == "A-1"
    queue.record_state(conn, tail["id"], 1, 0)
    queue.report_result(conn, tail["id"], "done", jira_calls=1)
    run = conn.execute("SELECT * FROM sync_run WHERE command_id = ?", (tail["id"],)).fetchone()
    assert run["finished_at"] and run["issues_count"] == 1 and run["jira_calls"] == 1
    assert queue.batch_view(conn, b1["id"])["status"] == "done"
    assert queue.claim(conn)["params"]["key"] == "A-2" and queue.batch_view(conn, b2["id"])["status"] == "running"


def test_claim_is_exclusive(tmp_path):
    import threading
    path = tmp_path / "hub.sqlite"
    setup = db.connect(path)
    settings.ensure_defaults(setup)
    queue.create_batch(setup, "x", "claude", [fields("A-1")])
    conns = [db.connect(path), db.connect(path)]
    barrier, results = threading.Barrier(2), []

    def worker(c):
        barrier.wait()
        results.append(queue.claim(c))

    threads = [threading.Thread(target=worker, args=(c,)) for c in conns]
    [t.start() for t in threads]
    [t.join() for t in threads]
    assert sorted(r is None for r in results) == [False, True]
    assert setup.execute("SELECT COUNT(*) AS n FROM command WHERE status = 'claimed'").fetchone()["n"] == 1


def test_backup_failure_does_not_block_claim(caplog):
    conn = fresh()
    queue.create_batch(conn, "x", "claude", [fields("A-1")])

    def broken(label):
        raise OSError("диск полон")

    c = queue.claim(conn, backup=broken)
    assert c is not None and c["params"]["key"] == "A-1"
    assert queue.get_command(conn, c["id"])["status"] == "claimed"
    assert "не создана" in caplog.text


def test_stale_claimed_does_not_block():
    conn = fresh()
    queue.create_batch(conn, "x", "claude", [fields("A-1"), fields("A-2")])
    c = queue.claim(conn)
    conn.execute("UPDATE command SET claimed_at = '2020-01-01T00:00:00+00:00' WHERE id = ?", (c["id"],))
    nxt = queue.claim(conn)
    assert nxt["params"]["key"] == "A-2"
    assert queue.agent_view(conn)["stuck"][0]["id"] == c["id"]


def test_temp_key_substitution_and_skip():
    conn = fresh()
    mirror.set_note(conn, "new:60", {"fact_status": "В работе"}, "import")
    queue.create_batch(conn, "создать", "claude", [
        {"type": "ensure_issue", "params": {"temp_key": "new:60", "issue_type": "task", "summary": "Новая"}},
        {"type": "ensure_link", "params": {"source": "new:60", "target": "A-1", "link_type": "связанные"}},
        {"type": "ensure_issue", "params": {"temp_key": "new:61", "issue_type": "task", "summary": "Вторая"}},
        {"type": "ensure_sprint", "params": {"key": "new:61", "sprint": "Спринт 2"}},
    ])
    c1 = queue.claim(conn)
    queue.report_result(conn, c1["id"], "done", result={"key": "A-90"})
    assert mirror.get_note(conn, "A-90")["fact_status"] == "В работе" and mirror.get_note(conn, "new:60") is None
    c2 = queue.claim(conn)
    assert c2["type"] == "ensure_link" and c2["params"]["source"] == "A-90"
    queue.report_result(conn, c2["id"], "done")
    c3 = queue.claim(conn)
    queue.report_result(conn, c3["id"], "failed", error="HTTP 400")
    tail = queue.claim(conn)                                           # ensure_sprint пропущена, refresh без new:61
    assert tail["type"] == "refresh" and tail["params"]["keys"] == ["A-90", "A-1"]
    view = queue.batch_view(conn, c1["batch_id"])
    assert [c["status"] for c in view["commands"]][:4] == ["done", "done", "failed", "skipped"]
    assert view["commands"][3]["error"] == "задача new:61 не создана"


def test_cancel_and_retry():
    conn = fresh()
    b = queue.create_batch(conn, "x", "claude", [fields("A-1"), fields("A-2")])
    c = queue.claim(conn)
    with pytest.raises(ClaimedError):
        queue.cancel_command(conn, c["id"])
    view = queue.cancel_batch(conn, b["id"])
    assert [x["status"] for x in view["commands"]] == ["claimed", "cancelled", "cancelled"]
    assert queue.claim(conn) is None
    forced = queue.cancel_command(conn, c["id"], force=True)
    assert forced["status"] == "cancelled"
    after = queue.report_result(conn, c["id"], "done", result={"changed": []})
    assert after["status"] == "cancelled" and after["result"] is None   # отчёт после force-отмены не затирает
    assert queue.batch_view(conn, b["id"])["status"] == "cancelled"
    r = queue.retry_command(conn, c["id"], "claude")
    assert queue.batch_view(conn, r["id"])["title"] == f"Повтор команды {c['id']}"
    assert queue.list_batches(conn, limit=5)[0]["id"] == r["id"]


def test_report_after_force_cancel_keeps_cancelled():
    conn = fresh()
    queue.create_batch(conn, "x", "claude", [fields("A-1")])
    c = queue.claim(conn)
    queue.cancel_command(conn, c["id"], force=True)
    assert queue.report_result(conn, c["id"], "failed", error="e")["status"] == "cancelled"


def test_reconcile_confirms_by_state():
    conn = fresh()
    queue.create_batch(conn, "x", "claude", [{"type": "ensure_sprint", "params": {"key": "A-1", "sprint": "Спринт 2"}}])
    c = queue.claim(conn)
    conn.execute("UPDATE command SET claimed_at = '2020-01-01T00:00:00+00:00' WHERE id = ?", (c["id"],))
    b = queue.create_batch(conn, "обновить", "claude", [{"type": "refresh", "params": {"keys": ["A-1"]}}])
    r = queue.claim(conn)
    mirror.apply_state(conn, [{"key": "A-1", "summary": "т", "sprint": "Спринт 2", "labels": []}], [])
    queue.report_result(conn, r["id"], "done")
    assert queue.get_command(conn, c["id"])["status"] == "confirmed_by_state"
    assert r["batch_id"] == c["batch_id"]                               # выдался хвостовой refresh первого пакета
    assert queue.batch_view(conn, c["batch_id"])["status"] == "done"
    assert queue.batch_view(conn, b["id"])["status"] == "queued"


def test_auto_refresh_conditions():
    conn = fresh()
    assert queue.maybe_auto_refresh(conn) is None                      # агент не на связи
    queue.claim(conn, agent_version=1, settings_version=1)              # отметился, очередь пуста
    b = queue.maybe_auto_refresh(conn)
    assert b and queue.batch_view(conn, b["id"])["title"] == "Автообновление"
    assert queue.maybe_auto_refresh(conn) is None                      # очередь занята
    c = queue.claim(conn)
    queue.report_result(conn, c["id"], "done")
    assert queue.maybe_auto_refresh(conn) is None                      # интервал не прошёл
    conn.execute("UPDATE sync_run SET started_at = '2020-01-01T00:00:00+00:00'")
    assert queue.maybe_auto_refresh(conn) is not None
    settings.set_(conn, "auto_refresh_minutes", 0)
    conn.execute("UPDATE sync_run SET started_at = '2020-01-01T00:00:00+00:00'")
    assert queue.maybe_auto_refresh(conn) is None


def test_backup_called_for_first_write_only(tmp_path):
    conn = fresh()
    calls = []
    queue.create_batch(conn, "x", "claude", [fields("A-1"), fields("A-2")])
    c1 = queue.claim(conn, backup=calls.append)
    queue.report_result(conn, c1["id"], "done")
    queue.claim(conn, backup=calls.append)
    assert calls == [f"batch-{c1['batch_id']}"]


def test_no_backup_for_refresh_batch():
    conn = fresh()
    calls = []
    queue.create_batch(conn, "x", "claude", [{"type": "refresh", "params": {"jql": "project = X"}}])
    queue.claim(conn, backup=calls.append)
    assert calls == []


def test_make_backup_rotates(tmp_path):
    from jira_hub import backup
    conn = db.connect(tmp_path / "hub.sqlite")
    for i in range(4):
        backup.make_backup(conn, tmp_path / "backups", f"b{i}", keep=2)
    names = sorted(p.name for p in (tmp_path / "backups").glob("*.sqlite"))
    assert len(names) == 2 and names[-1].endswith("-b3.sqlite")
    assert db.connect(tmp_path / "backups" / names[-1]).execute("SELECT COUNT(*) AS n FROM agent_status").fetchone()["n"] == 1


def test_reconcile_respects_reporter_setting():
    conn = fresh()
    settings.set_(conn, "reporter", "robot")
    queue.create_batch(conn, "x", "claude", [{"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": "Тема"}}])
    c = queue.claim(conn)
    conn.execute("UPDATE command SET claimed_at = '2020-01-01T00:00:00+00:00' WHERE id = ?", (c["id"],))
    created = db.utcnow().isoformat()
    mirror.apply_state(conn, [{"key": "A-7", "summary": "Тема", "reporter": "other", "created": created, "labels": []}], [])
    assert queue.reconcile(conn) == []                                  # чужая задача не подтверждает
    mirror.apply_state(conn, [{"key": "A-8", "summary": "Тема", "reporter": "robot", "created": created, "labels": []}], [])
    assert queue.reconcile(conn) == [c["id"]]
    assert queue.get_command(conn, c["id"])["result"] == {"key": "A-8"}


def _claimed_ensure_issue(conn, summary="Тема"):
    queue.create_batch(conn, "x", "claude", [{"type": "ensure_issue", "params": {"temp_key": "new:1", "issue_type": "task", "summary": summary}}])
    c = queue.claim(conn)
    conn.execute("UPDATE command SET claimed_at = '2020-01-01T00:00:00+00:00' WHERE id = ?", (c["id"],))
    return c


def test_reconcile_does_not_confirm_ensure_issue_without_reporter():
    """R-11: настройка reporter не задана — совпадение темы не подтверждает, заметка new:N не переезжает."""
    conn = fresh()
    c = _claimed_ensure_issue(conn)
    mirror.set_note(conn, "new:1", {"work_kind": "разработка"}, "t")
    created = db.utcnow().isoformat()
    mirror.apply_state(conn, [{"key": "A-7", "summary": "Тема", "reporter": "other", "created": created, "labels": []}], [])
    assert queue.reconcile(conn) == []
    assert queue.get_command(conn, c["id"])["status"] == "claimed"
    assert mirror.get_note(conn, "new:1") is not None and mirror.get_note(conn, "A-7") is None


def test_reconcile_does_not_overwrite_finished_command(monkeypatch):
    """M-1: отчёт агента/отмена между check_confirmed и UPDATE не перезаписываются."""
    conn = fresh()
    settings.set_(conn, "reporter", "robot")
    c = _claimed_ensure_issue(conn)
    mirror.set_note(conn, "new:1", {"work_kind": "разработка"}, "t")
    mirror.apply_state(conn, [{"key": "A-8", "summary": "Тема", "reporter": "robot",
                               "created": db.utcnow().isoformat(), "labels": []}], [])
    real = queue.C.check_confirmed

    def racing(*a, **kw):
        out = real(*a, **kw)
        queue.cancel_command(conn, c["id"], force=True)       # гонка: отмена после проверки
        return out

    monkeypatch.setattr(queue.C, "check_confirmed", racing)
    assert queue.reconcile(conn) == []
    assert queue.get_command(conn, c["id"])["status"] == "cancelled"
    assert mirror.get_note(conn, "new:1") is not None          # rename_note не выполнялся