"""Unit tests for render_digest_email."""
from __future__ import annotations

from app.services.email_service import render_digest_email


def test_daily_subject_and_bodies():
    subj, text, html = render_digest_email(
        kind="daily",
        date_str="2026-05-25",
        content_html="<p>Markets did stuff today.</p>",
        unsubscribe_url="https://read.markets/email/unsubscribe?token=abc",
        settings_url="https://read.markets/settings",
    )
    assert "Daily" in subj
    assert "2026-05-25" in subj
    assert "Markets did stuff today" in html
    assert "abc" in html  # unsubscribe link landed
    assert "/settings" in html
    # Plain-text fallback strips HTML.
    assert "<p>" not in text
    assert "Markets did stuff today" in text


def test_weekly_subject_says_recap():
    subj, _, _ = render_digest_email(
        kind="weekly",
        date_str="2026-05-25",
        content_html="<p>x</p>",
        unsubscribe_url="https://x/u",
        settings_url="https://x/s",
    )
    assert "Weekly" in subj
    assert "recap" in subj.lower()


def test_invalid_kind_raises():
    import pytest
    with pytest.raises(ValueError):
        render_digest_email(
            kind="bogus", date_str="2026-05-25",
            content_html="<p>x</p>",
            unsubscribe_url="u", settings_url="s",
        )