import pytest

from infrasynth.notifications.models import (
    ChannelConfig,
    NotificationDispatch,
    NotificationTemplate,
)

pytestmark = pytest.mark.django_db

TEMPLATES_URL = "/api/v1/notifications/templates/"
DISPATCHES_URL = "/api/v1/notifications/dispatches/"
CHANNELS_URL = "/api/v1/notifications/channels/"


@pytest.fixture
def template():
    return NotificationTemplate.objects.create(
        slug="welcome",
        name="Welcome",
        channel="email",
        subject_template="Hi",
        body_template="Hello",
    )


@pytest.fixture
def dispatch(template, user):
    return NotificationDispatch.objects.create(
        template=template,
        recipient="a@b.com",
        channel="email",
        subject="Hi",
        body="Hello",
        status=NotificationDispatch.Status.SENT,
    )


class TestNotificationTemplateViewSet:
    def test_list_templates(self, authenticated_client, template):
        response = authenticated_client.get(TEMPLATES_URL)
        assert response.status_code == 200
        assert response.data["count"] == 1
        assert response.data["results"][0]["slug"] == "welcome"

    def test_requires_auth(self, api_client, template):
        assert api_client.get(TEMPLATES_URL).status_code == 401

    def test_create_template(self, authenticated_client):
        response = authenticated_client.post(
            TEMPLATES_URL,
            {
                "slug": "order_shipped",
                "name": "Order shipped",
                "channel": "email",
                "subject_template": "Your order shipped",
                "body_template": "Tracking: {{ tracking }}",
            },
            format="json",
        )
        assert response.status_code == 201
        assert NotificationTemplate.objects.filter(slug="order_shipped").exists()

    def test_retrieve_and_update_template(self, authenticated_client, template):
        response = authenticated_client.get(f"{TEMPLATES_URL}{template.id}/")
        assert response.status_code == 200
        response = authenticated_client.patch(
            f"{TEMPLATES_URL}{template.id}/",
            {"name": "Renamed"},
            format="json",
        )
        assert response.status_code == 200
        template.refresh_from_db()
        assert template.name == "Renamed"

    def test_delete_template(self, authenticated_client, template):
        response = authenticated_client.delete(f"{TEMPLATES_URL}{template.id}/")
        assert response.status_code == 204
        assert not NotificationTemplate.objects.filter(pk=template.pk).exists()


class TestNotificationDispatchViewSet:
    def test_list_dispatches(self, authenticated_client, dispatch):
        response = authenticated_client.get(DISPATCHES_URL)
        assert response.status_code == 200
        assert response.data["count"] == 1
        assert response.data["results"][0]["recipient"] == "a@b.com"

    def test_retrieve_dispatch(self, authenticated_client, dispatch):
        response = authenticated_client.get(f"{DISPATCHES_URL}{dispatch.id}/")
        assert response.status_code == 200
        assert response.data["template_info"]["slug"] == "welcome"

    def test_list_does_not_allow_create(self, authenticated_client):
        response = authenticated_client.post(
            DISPATCHES_URL,
            {"recipient": "x@y.com", "channel": "email", "subject": "S", "body": "B"},
            format="json",
        )
        assert response.status_code == 405

    def test_requires_auth(self, api_client, dispatch):
        assert api_client.get(DISPATCHES_URL).status_code == 401

    def test_filter_by_status(self, authenticated_client, dispatch):
        response = authenticated_client.get(DISPATCHES_URL, {"status": "sent"})
        assert response.data["count"] == 1
        response = authenticated_client.get(DISPATCHES_URL, {"status": "failed"})
        assert response.data["count"] == 0


class TestChannelConfigViewSet:
    def test_list_channels(self, authenticated_client):
        ChannelConfig.objects.create(
            slug="email",
            channel_type="email",
            display_name="Email",
            config={"host": "smtp.x.com"},
        )
        response = authenticated_client.get(CHANNELS_URL)
        assert response.status_code == 200
        assert response.data["count"] == 1
        assert response.data["results"][0]["display_name"] == "Email"

    def test_create_channel(self, authenticated_client):
        response = authenticated_client.post(
            CHANNELS_URL,
            {
                "slug": "sms",
                "channel_type": "sms",
                "display_name": "SMS",
                "config": {"account_sid": "sid"},
            },
            format="json",
        )
        assert response.status_code == 201
        assert ChannelConfig.objects.filter(slug="sms").exists()

    def test_requires_auth(self, api_client):
        assert api_client.get(CHANNELS_URL).status_code == 401