from unittest import mock

import pytest
from faker import Faker
from fansifter_common.email import EmailType

from email_campaigns.campaigns.enums import EmailCampaignStatus
from email_campaigns.campaigns.exceptions import EmailCampaignMustBeDraftError
from email_campaigns.campaigns.handlers import AutosaveCampaignHandler
from email_campaigns.campaigns.models import EmailCampaign
from email_campaigns.emails.exceptions import AutosaveUnauthorizedError
from email_campaigns.emails.handlers import AutosaveEmailRequest

from tests.unit.helpers import override_settings
from tests.unit.types import CreateModel


class TestAutosaveCampaignHandler:
    @pytest.mark.db
    def test_autosave_campaign(
        self,
        handler: AutosaveCampaignHandler,
        create_model: CreateModel,
        faker: Faker,
        campaign_public_preview_cache_mock: mock.MagicMock,
    ) -> None:
        # Reset mock to clear any previous calls
        campaign_public_preview_cache_mock.reset_mock()

        username = faker.pystr()
        password = faker.pystr()

        campaign = create_model(
            EmailCampaign,
            status=EmailCampaignStatus.DRAFT,
        )
        html = "<p>html content</p>"
        css = "p { color: red; }"

        with override_settings(
            stripo_autosave_username=username,
            stripo_autosave_password=password,
        ):
            handler.handle(
                AutosaveEmailRequest(
                    key=faker.pystr(),
                    email_id=campaign.id,
                    html=html,
                    css=css,
                    username=username,
                    password=password,
                )
            )

        assert campaign.html_content == html
        assert campaign.css_content == css

        # Verify cache was invalidated
        campaign_public_preview_cache_mock.delete.assert_called_once_with(
            campaign.id, EmailType.CAMPAIGN
        )

    @pytest.mark.db
    def test_autosave_campaign_with_user_id(
        self,
        handler: AutosaveCampaignHandler,
        create_model: CreateModel,
        faker: Faker,
    ) -> None:
        username = faker.pystr()
        password = faker.pystr()
        user_id = faker.uuid4()

        campaign = create_model(
            EmailCampaign,
            status=EmailCampaignStatus.DRAFT,
        )
        html = "<p>html content</p>"
        css = "p { color: red; }"

        with override_settings(
            stripo_autosave_username=username,
            stripo_autosave_password=password,
        ):
            handler.handle(
                AutosaveEmailRequest(
                    key=faker.pystr(),
                    email_id=campaign.id,
                    html=html,
                    css=css,
                    username=username,
                    password=password,
                    user_id=user_id,
                )
            )

        assert campaign.html_content == html
        assert campaign.css_content == css
        assert campaign.updated_by == user_id

    @pytest.mark.db
    def test_autosave_campaign_without_user_id(
        self,
        handler: AutosaveCampaignHandler,
        create_model: CreateModel,
        faker: Faker,
    ) -> None:
        username = faker.pystr()
        password = faker.pystr()
        original_updated_by = faker.uuid4()

        campaign = create_model(
            EmailCampaign,
            status=EmailCampaignStatus.DRAFT,
            updated_by=original_updated_by,
        )
        html = "<p>html content</p>"
        css = "p { color: red; }"

        with override_settings(
            stripo_autosave_username=username,
            stripo_autosave_password=password,
        ):
            handler.handle(
                AutosaveEmailRequest(
                    key=faker.pystr(),
                    email_id=campaign.id,
                    html=html,
                    css=css,
                    username=username,
                    password=password,
                    user_id=None,
                )
            )

        assert campaign.html_content == html
        assert campaign.css_content == css
        # updated_by should remain unchanged when user_id is None
        assert campaign.updated_by == original_updated_by

    @pytest.mark.db
    def test_campaign_for_autosave_must_be_draft(
        self,
        handler: AutosaveCampaignHandler,
        create_model: CreateModel,
        faker: Faker,
    ) -> None:
        username = faker.pystr()
        password = faker.pystr()

        campaign = create_model(
            EmailCampaign,
            status=EmailCampaignStatus.IN_PROGRESS,
        )
        html = "<p>html content</p>"
        css = "p { color: red; }"

        with (
            override_settings(
                stripo_autosave_username=username,
                stripo_autosave_password=password,
            ),
            pytest.raises(EmailCampaignMustBeDraftError),
        ):
            handler.handle(
                AutosaveEmailRequest(
                    key=faker.pystr(),
                    email_id=campaign.id,
                    html=html,
                    css=css,
                    username=username,
                    password=password,
                )
            )

    @pytest.mark.db
    def test_autosave_campaign_incorrect_password(
        self,
        handler: AutosaveCampaignHandler,
        create_model: CreateModel,
        faker: Faker,
    ) -> None:
        username = faker.pystr()
        password = faker.pystr()

        campaign = create_model(
            EmailCampaign,
            status=EmailCampaignStatus.DRAFT,
        )
        html = "<p>html content</p>"
        css = "p { color: red; }"

        with (
            override_settings(
                stripo_autosave_username=username,
                stripo_autosave_password=password,
            ),
            pytest.raises(AutosaveUnauthorizedError),
        ):
            handler.handle(
                AutosaveEmailRequest(
                    key=faker.pystr(),
                    email_id=campaign.id,
                    html=html,
                    css=css,
                    username=username,
                    password=faker.pystr(),
                )
            )