"""Pro-Cookie-Library-Abgleich: deklariert vs. cookie_knowledge_db."""

from __future__ import annotations

from compliance.services.cookie_library_check import analyze_cookies


def test_tracker_declared_necessary_is_high_finding():
    # _ga ist laut Library technical_necessity=none, reid=high.
    vendors = [{
        "name": "Salesforce", "category": "necessary",
        "cookies": [{"name": "_ga", "purpose": "Funktionsverbesserung"}],
    }]
    out = analyze_cookies(vendors)
    assert out["summary"]["in_library"] == 1
    f = out["findings"][0]
    assert f["type"] == "tracker_as_necessary"
    assert f["severity"] == "HIGH"
    assert "§ 25" in f["remediation"]
    assert f["library_purpose"]               # exact_purpose aus Library


def test_missing_purpose_when_library_knows_it():
    vendors = [{
        "name": "X", "category": "marketing",
        "cookies": [{"name": "_ga", "purpose": ""}],
    }]
    out = analyze_cookies(vendors)
    f = out["findings"][0]
    assert f["type"] == "missing_purpose"
    assert f["severity"] == "MEDIUM"
    assert f["library_purpose"]


def test_unknown_cookie_no_finding():
    vendors = [{
        "name": "Y", "category": "necessary",
        "cookies": [{"name": "completely_unknown_xyz_123", "purpose": ""}],
    }]
    out = analyze_cookies(vendors)
    assert out["summary"]["checked"] == 1
    assert out["summary"]["in_library"] == 0
    assert out["findings"] == []


def _types(out):
    return {f["type"] for f in out["findings"]}


def test_third_country_and_eu_alternative_for_us_tracker():
    # _ga: US-Vendor + EU-Alternative Matomo in der Library.
    out = analyze_cookies([{
        "name": "Google", "category": "marketing",
        "cookies": [{"name": "_ga", "purpose": "Statistik", "expiry": "2 Jahre"}],
    }])
    t = _types(out)
    assert "third_country" in t
    assert "eu_alternative" in t


def test_third_country_deduped_per_vendor():
    out = analyze_cookies([{
        "name": "Google", "category": "marketing",
        "cookies": [
            {"name": "_ga", "purpose": "x", "expiry": "2 Jahre"},
            {"name": "_gid", "purpose": "x", "expiry": "1 Tag"},
        ],
    }])
    assert sum(1 for f in out["findings"] if f["type"] == "third_country") == 1


def test_excessive_lifetime():
    # _gid: typische Laufzeit 24 Stunden; deklariert 2 Jahre.
    out = analyze_cookies([{
        "name": "Google", "category": "marketing",
        "cookies": [{"name": "_gid", "purpose": "x", "expiry": "2 Jahre"}],
    }])
    el = [f for f in out["findings"] if f["type"] == "excessive_lifetime"]
    assert el and "Art. 5" in el[0]["remediation"]


def test_vague_duration_flagged_concrete_ok():
    # User-Beispiel Salesforce: "bis der Nutzer es deaktiviert" = vage.
    out = analyze_cookies([{
        "name": "Salesforce", "category": "necessary",
        "cookies": [
            {"name": "MUTEX_X", "purpose": "x",
             "expiry": "Wird solange gespeichert, bis es durch den Nutzer in seinem Browser deaktiviert wird."},
            {"name": "ok1", "purpose": "x", "expiry": "13 Monate"},
            {"name": "sess", "purpose": "x",
             "expiry": "Dieses Session Cookie wird beim Schließen des Browsers wieder gelöscht."},
        ],
    }])
    vd = [f for f in out["findings"] if f["type"] == "vague_duration"]
    assert len(vd) == 1                       # nur MUTEX_X; 13 Monate + Session ok
    assert vd[0]["cookie"] == "MUTEX_X"
    assert "Art. 5" in vd[0]["remediation"]


def test_big_library_covers_cookie_not_in_rich_db():
    # Cookie nicht in der 35er rich-DB, aber in der grossen 2287er (big_lib).
    big = {"bmw_track_de": {
        "actual_category": "marketing", "typical_max_age_seconds": 86400,
        "purpose_de": "Reichweiten-Tracking", "vendor_name": "BMW",
    }}
    out = analyze_cookies([{
        "name": "BMW", "category": "necessary",
        "cookies": [{"name": "bmw_track_de", "purpose": "", "expiry": "2 Jahre"}],
    }], big)
    assert out["summary"]["in_library"] == 1
    t = {f["type"] for f in out["findings"]}
    assert "tracker_as_necessary" in t      # actual_category=marketing → Tracker
    assert "excessive_lifetime" in t        # 2 Jahre vs. 1 Tag