"""Test /dashboard page rendering and structure"""
import pytest
import sys
import os

sys.path.insert(0, os.path.dirname(os.path.abspath(__file__)))

from app import app as flask_app


@pytest.fixture
def client():
    flask_app.config['TESTING'] = True
    with flask_app.test_client() as c:
        yield c


def test_dashboard_page_returns_200(client):
    """Dashboard page serves HTTP 200"""
    r = client.get('/dashboard')
    assert r.status_code == 200


def test_dashboard_page_has_title(client):
    """Dashboard page contains expected title"""
    r = client.get('/dashboard')
    html = r.data.decode('utf-8')
    assert '数据看板' in html, "Missing 数据看板 title"


def test_dashboard_page_has_fetch(client):
    """Dashboard page JS fetches /api/dashboard"""
    r = client.get('/dashboard')
    html = r.data.decode('utf-8')
    assert '/api/dashboard' in html, "Missing /api/dashboard API call"


def test_dashboard_page_no_style_backslash_bug(client):
    """Dashboard page has no style=\\\\\\\\' escaping bug"""
    r = client.get('/dashboard')
    html = r.data.decode('utf-8')
    # Check for the known-common escaping bug patterns
    assert "style=\\\\\\\\'" not in html, "STYLE BACKSLASH BUG in dashboard.html"
    assert "style=\\\\\\\\\\\\'" not in html, "STYLE TRIPLE BACKSLASH BUG in dashboard.html"


def test_dashboard_page_has_auto_refresh(client):
    """Dashboard page auto-refreshes (setInterval or similar)"""
    r = client.get('/dashboard')
    html = r.data.decode('utf-8')
    assert 'setInterval' in html or 'setTimeout' in html, \
        "Missing auto-refresh mechanism"


def test_dashboard_page_has_card_elements(client):
    """Dashboard page has card containers for modules"""
    r = client.get('/dashboard')
    html = r.data.decode('utf-8')
    # Should have card-like structure
    assert 'dashboard' in html.lower(), "Missing dashboard identifier"


if __name__ == '__main__':
    pytest.main([__file__, '-v'])