"""M5: ai_calls Verbrauch + Hard-Block (CLUB_FEATURE_ENFORCE)."""
import pytest
from fastapi import HTTPException

from club_features import (
    club_feature_enforcement_enabled,
    consume_club_feature,
    consume_club_feature_with_usage,
    merge_feature_usage_into_response,
    probe_club_feature_access,
)


def _fake_cur():
    class C:
        def execute(self, *a, **k):
            pass

        def fetchone(self):
            return None

    return C()


def test_probe_blocks_when_enforce_and_limit_exceeded(monkeypatch):
    monkeypatch.setenv("CLUB_FEATURE_ENFORCE", "1")
    monkeypatch.setattr("club_features.get_cursor", lambda conn: _fake_cur())
    monkeypatch.setattr(
        "club_quota_bypass.is_club_feature_quota_bypassed",
        lambda *a, **k: False,
    )
    monkeypatch.setattr(
        "club_features.check_club_feature_access",
        lambda club_id, feature_id, conn=None: {
            "allowed": False,
            "limit": 0,
            "used": 0,
            "remaining": 0,
            "reason": "feature_disabled",
            "plan_id": "free",
        },
    )
    monkeypatch.setattr("club_feature_logger.log_club_feature_usage", lambda **kwargs: None)

    with pytest.raises(HTTPException) as exc:
        probe_club_feature_access(
            feature_id="ai_calls",
            action="suggest",
            club_id=12,
            profile_id=3,
            endpoint="POST /exercises/ai/suggest",
            conn=object(),
        )
    assert exc.value.status_code == 403
    assert "ai_calls" in str(exc.value.detail)


def test_probe_allows_when_enforce_off(monkeypatch):
    monkeypatch.setenv("CLUB_FEATURE_ENFORCE", "0")
    monkeypatch.setattr("club_features.get_cursor", lambda conn: _fake_cur())
    monkeypatch.setattr(
        "club_quota_bypass.is_club_feature_quota_bypassed",
        lambda *a, **k: False,
    )
    monkeypatch.setattr(
        "club_features.check_club_feature_access",
        lambda club_id, feature_id, conn=None: {
            "allowed": False,
            "limit": 0,
            "used": 0,
            "remaining": 0,
            "reason": "feature_disabled",
            "plan_id": "free",
        },
    )
    monkeypatch.setattr("club_feature_logger.log_club_feature_usage", lambda **kwargs: None)

    access = probe_club_feature_access(
        feature_id="ai_calls",
        action="suggest",
        club_id=12,
        profile_id=3,
        conn=object(),
    )
    assert access["allowed"] is False


def test_consume_skips_without_club_id(monkeypatch):
    calls = []

    def _inc(*args, **kwargs):
        calls.append(1)

    monkeypatch.setattr("club_features.increment_club_feature_usage", _inc)
    consume_club_feature(feature_id="ai_calls", club_id=None, profile_id=1)
    assert calls == []


def test_consume_logs_usage_after_increment(monkeypatch):
    logs = []

    monkeypatch.setattr("club_features.get_cursor", lambda conn: _fake_cur())
    monkeypatch.setattr(
        "club_quota_bypass.is_club_feature_quota_bypassed",
        lambda *a, **k: False,
    )
    monkeypatch.setattr("club_features.increment_club_feature_usage", lambda *a, **k: None)
    monkeypatch.setattr(
        "club_features.check_club_feature_access",
        lambda club_id, feature_id, conn=None: {
            "allowed": True,
            "used": 1,
            "limit": 30,
            "remaining": 29,
            "plan_id": "club",
            "reason": "within_limit",
        },
    )
    monkeypatch.setattr(
        "club_feature_logger.log_club_feature_usage",
        lambda **kwargs: logs.append(kwargs),
    )

    consume_club_feature(
        feature_id="ai_calls",
        club_id=5,
        profile_id=9,
        portal_role="trainer",
        action="suggest",
        conn=object(),
    )
    assert len(logs) == 1
    assert logs[0]["phase"] == "consume"
    assert logs[0]["feature_id"] == "ai_calls"
    assert logs[0]["club_id"] == 5


def test_consume_increments_once_per_call(monkeypatch):
    calls = []

    def _inc(club_id, feature_id, **kwargs):
        calls.append((club_id, feature_id, kwargs.get("action")))

    monkeypatch.setattr("club_features.get_cursor", lambda conn: _fake_cur())
    monkeypatch.setattr(
        "club_quota_bypass.is_club_feature_quota_bypassed",
        lambda *a, **k: False,
    )
    monkeypatch.setattr("club_features.increment_club_feature_usage", _inc)
    monkeypatch.setattr(
        "club_features.check_club_feature_access",
        lambda club_id, feature_id, conn=None: {
            "allowed": True,
            "used": 1,
            "limit": 30,
            "remaining": 29,
            "plan_id": "club",
            "reason": "within_limit",
        },
    )
    monkeypatch.setattr("club_feature_logger.log_club_feature_usage", lambda **kwargs: None)
    consume_club_feature(
        feature_id="ai_calls",
        club_id=5,
        profile_id=9,
        portal_role="trainer",
        action="suggest",
        conn=object(),
    )
    assert calls == [(5, "ai_calls", "suggest")]


def test_merge_feature_usage_into_response():
    out = merge_feature_usage_into_response(
        {"ok": True},
        {"ai_calls": {"used": 3, "limit": 30}},
    )
    assert out["ok"] is True
    assert out["feature_usage"]["ai_calls"]["used"] == 3
    assert merge_feature_usage_into_response({"x": 1}, None) == {"x": 1}


def test_consume_with_usage_returns_snapshot(monkeypatch):
    monkeypatch.setattr("club_features.get_cursor", lambda conn: _fake_cur())
    monkeypatch.setattr(
        "club_quota_bypass.is_club_feature_quota_bypassed",
        lambda *a, **k: False,
    )
    monkeypatch.setattr("club_features.consume_club_feature", lambda **kwargs: None)
    monkeypatch.setattr(
        "club_features.club_feature_usage_for_api",
        lambda cur, **kwargs: {"used": 4, "limit": 30, "allowed": True},
    )

    usage = consume_club_feature_with_usage(
        feature_id="ai_calls",
        club_id=7,
        profile_id=1,
        portal_role="trainer",
        action="suggest",
        cur=_fake_cur(),
        conn=object(),
    )
    assert usage["ai_calls"]["used"] == 4


def test_probe_blocks_no_club_context_when_enforce(monkeypatch):
    monkeypatch.setenv("CLUB_FEATURE_ENFORCE", "1")
    monkeypatch.setattr("club_feature_logger.log_club_feature_usage", lambda **kwargs: None)

    with pytest.raises(HTTPException) as exc:
        probe_club_feature_access(
            feature_id="ai_calls",
            action="suggest",
            club_id=None,
            profile_id=3,
            endpoint="POST /exercises/ai/suggest",
        )
    assert exc.value.status_code == 403
    assert "Vereinskontext" in str(exc.value.detail)


def test_club_feature_enforcement_env_default_off(monkeypatch):
    monkeypatch.delenv("CLUB_FEATURE_ENFORCE", raising=False)
    assert club_feature_enforcement_enabled() is False