import urllib.parse
from datetime import datetime

import freezegun
from fansifter_common.adapters.sendgrid.models import MergeTags
from fansifter_common.identifiers.types import DoubleOptInToken
from fansifter_common.identifiers.utils import decrypt_double_opt_in_identifier

from app.adapters.preferences import encrypter
from app.fandata import get_fan_data
from app.types import CsvRow

from tests.unit.helpers import build_model

CAMPAIGN_ID = "campaign_001"
FROZEN_TIME = "2026-03-04T10:30:00Z"


def test_get_fan_data_doi_send_sets_double_opt_in_url() -> None:
    row = build_model(
        CsvRow,
        is_doi_send=True,
        confirmation_id="confirmation_123",
        fan_email="fan@sonymusic-pde.com",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.double_opt_in_url is not None
    assert "/double-opt-in?token=" in fan_data.double_opt_in_url


def test_get_fan_data_non_doi_send_has_no_double_opt_in_url() -> None:
    row = build_model(
        CsvRow,
        is_doi_send=False,
        confirmation_id=None,
        fan_email="fan@sonymusic-pde.com",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.double_opt_in_url is None


@freezegun.freeze_time(FROZEN_TIME)
def test_get_fan_data_doi_url_round_trip() -> None:
    row = build_model(
        CsvRow,
        is_doi_send=True,
        confirmation_id="conf_456",
        automated_email_trigger_id="trigger_001",
        fan_email="fan@sonymusic-pde.com",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.double_opt_in_url is not None

    token_encoded = fan_data.double_opt_in_url.split("/double-opt-in?token=")[1]
    token = urllib.parse.unquote(token_encoded)

    identifier = decrypt_double_opt_in_identifier(
        encrypter, token=DoubleOptInToken(token)
    )
    assert identifier.event_row_id == "conf_456"
    assert identifier.email_id == CAMPAIGN_ID
    assert identifier.automated_email_trigger_id == "trigger_001"
    assert identifier.iat == datetime.fromisoformat(FROZEN_TIME).timestamp()


def test_get_fan_data_missing_profile_id_returns_none_profile_token() -> None:
    row = build_model(
        CsvRow,
        fan_profile_id=None,
        fan_email="fan@sonymusic-pde.com",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.profile_token is None


def test_get_fan_data_empty_profile_id_returns_none_profile_token() -> None:
    row = build_model(
        CsvRow,
        fan_profile_id="",
        fan_email="fan@sonymusic-pde.com",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.profile_token is None


def test_get_fan_data_valid_profile_id_returns_encrypted_token() -> None:
    row = build_model(
        CsvRow,
        fan_profile_id="profile_123",
        fan_email="fan@sonymusic-pde.com",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.profile_token is not None
    assert len(fan_data.profile_token) > 0


def test_get_fan_data_doi_send_without_confirmation_id_has_no_url() -> None:
    row = build_model(
        CsvRow,
        is_doi_send=True,
        confirmation_id=None,
        fan_email="fan@sonymusic-pde.com",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.double_opt_in_url is None


def test_get_fan_data_de_fan_has_profile_text() -> None:
    row = build_model(
        CsvRow,
        fan_email="fan@sonymusic-pde.com",
        fan_country_code="DE",
        is_doi_send=False,
        confirmation_id=None,
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.profile_text == "Deine Daten verwalten"


def test_get_fan_data_non_de_fan_has_no_profile_text() -> None:
    row = build_model(
        CsvRow,
        fan_email="fan@sonymusic-pde.com",
        fan_country_code="US",
        is_doi_send=False,
        confirmation_id=None,
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.profile_text is None


def test_get_fan_data_propagates_first_name_merge_tag() -> None:
    row = build_model(
        CsvRow,
        fan_email="fan@sonymusic-pde.com",
        fan_first_name="Anna",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.merge_tags == MergeTags(first_name="Anna")


def test_get_fan_data_with_empty_first_name_falls_back_to_default() -> None:
    row = build_model(
        CsvRow,
        fan_email="fan@sonymusic-pde.com",
        fan_first_name="",
    )

    fan_data = get_fan_data(row, CAMPAIGN_ID)

    assert fan_data is not None
    assert fan_data.merge_tags == MergeTags(first_name="")
    assert fan_data.merge_tags.to_substitutions() == {"-firstName-": "Fan"}