from decimal import Decimal

import pytest
from django.core.exceptions import ValidationError

from apps.profiles.models import ProfileRevision, SearchProfile
from apps.profiles.services import apply_feedback_delta, save_profile_revision


@pytest.mark.django_db
def test_profile_validation_snapshot_activation_and_revisions(user, profile):
    profile.full_clean()
    snapshot = profile.snapshot()
    assert snapshot["home_municipality"] == "Hasselt"
    assert snapshot["home_latitude"] == pytest.approx(50.9307)
    assert snapshot["experience_years"] == 0
    assert "seniority" not in profile.weights
    assert sum(profile.weights.values()) == 100

    other = SearchProfile.objects.create(user=user, name="Tweede", is_active=False)
    other.activate()
    profile.refresh_from_db()
    other.refresh_from_db()
    assert other.is_active is True
    assert profile.is_active is False

    revision = save_profile_revision(other, reason="test")
    assert revision.version == 1
    assert ProfileRevision.objects.filter(profile=other).count() == 1
    second = save_profile_revision(other, reason="test-2")
    assert second.version == 2
    other.refresh_from_db()
    assert other.version == 2


@pytest.mark.django_db
def test_feedback_delta_is_bounded_and_can_be_disabled(profile):
    apply_feedback_delta(profile, "content", 100)
    profile.refresh_from_db()
    assert profile.weights["content"] == 40.0
    apply_feedback_delta(profile, "content", -100)
    profile.refresh_from_db()
    assert profile.weights["content"] == 0.0

    profile.learning_enabled = False
    profile.weights["skills"] = 20.0
    profile.save()
    apply_feedback_delta(profile, "skills", 5)
    profile.refresh_from_db()
    assert profile.weights["skills"] == 20.0


@pytest.mark.parametrize(
    ("field", "value"),
    [
        ("weights", {"content": "not-a-number"}),
        ("weights", {"content": -1}),
        ("home_latitude", Decimal("91")),
        ("home_longitude", Decimal("181")),
    ],
)
@pytest.mark.django_db
def test_profile_rejects_invalid_values(profile, field, value):
    setattr(profile, field, value)
    with pytest.raises(ValidationError):
        profile.full_clean()


@pytest.mark.django_db
def test_profile_rejects_inverted_thresholds(profile):
    profile.recommendation_threshold = 91
    profile.top_match_threshold = 90
    with pytest.raises(ValidationError):
        profile.full_clean()