"""V8.20 offline CMS compatibility tests, independent of the public network."""
import io
import json
import pytest
from app import wordpress_compat
from app.wp_complex_v820 import inspect_wxr, extract_acf
from app.wp_migration_v82 import _media_urls, _rewrite_media_html
from test_factory_v2 import factory,site


def wxr(records):
    return ('''<?xml version="1.0"?><rss version="2.0" xmlns:wp="http://wordpress.org/export/1.2/" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel>'''+records+'</channel></rss>').encode()


def entry(wp_id,link,custom='',body='',kind='page'):
    return f'''<item><title>Page {wp_id}</title><link>{link.replace('&','&amp;')}</link>
        <wp:post_type>{kind}</wp:post_type><wp:post_id>{wp_id}</wp:post_id>
        <wp:status>publish</wp:status><content:encoded><![CDATA[{body}]]></content:encoded>{custom}</item>'''


def meta(key,value):
    return f'<wp:postmeta><wp:meta_key>{key}</wp:meta_key><wp:meta_value><![CDATA[{value}]]></wp:meta_value></wp:postmeta>'


def test_wxr_duplicate_route_and_dynamic_query_blocked():
    data=wxr(entry(1,'https://old.example/products/a/')+entry(2,'https://old.example/products/a/')+entry(3,'https://old.example/?p=5'))
    out=inspect_wxr(data)
    assert out['unique_published_routes']==1
    assert out['blocking_issues']==2
    assert {x['code'] for x in out['issues']}=={'duplicate_route','invalid_permalink'}
    assert out['ready_for_automatic_publish'] is False


def test_wxr_counts_attachments_and_custom_types():
    data=wxr(entry(1,'https://old.example/a/',kind='attachment')+entry(2,'https://old.example/b/',kind='portfolio'))
    out=inspect_wxr(data)
    assert out['counts']['attachments']==1
    assert out['features']['custom_post_types']==1
    assert out['sample_routes'][0]['route']=='/b/'


def test_wxr_dynamic_shortcode_not_claimed_as_static():
    data=wxr(entry(1,'https://old.example/contact/',body='[contact-form-7 id="4"]'))
    out=inspect_wxr(data)
    assert out['blocking_issues']==1
    assert out['issues'][0]['code']=='dynamic_shortcode'


def test_acf_simple_repeater_explicit_field_references():
    values={'_features':'field_parent','features':'2','features_0_title':'First','_features_0_title':'field_child',
            'features_1_title':'Second','_features_1_title':'field_child','headline':'About','_headline':'field_header'}
    parsed=extract_acf(values)
    assert parsed['repeaters']['features']==[{'title':'First'},{'title':'Second'}]
    assert parsed['fields']['headline']=='About'
    assert any('核对' in s for s in parsed['warnings'])


def test_acf_serialized_does_not_execute_or_decode():
    parsed=extract_acf({'_links':'field_test','links':'a:1:{i:0;s:4:"evil";}'})
    assert 'links' not in parsed['fields']
    assert any('序列化' in s for s in parsed['warnings'])


def test_acf_incomplete_repeater_kept_raw_only():
    meta_values={'_list':'field_list','list':'2','_list_0_title':'field_title','list_0_title':'First'}
    parsed=extract_acf(meta_values)
    assert 'list' not in parsed['repeaters']
    assert any('不连续' in x for x in parsed['warnings'])


def test_elementor_unknown_widget_reported():
    data=json.dumps([{'elType':'widget','widgetType':'unknown_gallery','settings':{}},
                     {'elType':'widget','widgetType':'heading','settings':{'title':'A & B'}}])
    out=wordpress_compat.elementor_to_html(data)
    assert out['widgets']==2
    assert 'A &amp; B' in out['html']
    assert any('unknown_gallery' in x for x in out['warnings'])


def test_css_remote_image_inventory_and_rewrite():
    source={'body':'''<div style="background-image: url('https://old.example/bg.webp')"><img data-background="https://old.example/lazy.png"></div>'''}
    assert _media_urls(source)==['https://old.example/bg.webp','https://old.example/lazy.png']
    converted={'https://old.example/bg.webp':'/media/a.webp','https://old.example/lazy.png':'/media/b.png'}
    result,changed=_rewrite_media_html(source['body'],converted)
    assert changed and '/media/a.webp' in result and '/media/b.png' in result
    assert not _media_urls({'body':result})


def test_xxe_and_invalid_input_are_rejected():
    with pytest.raises(ValueError):inspect_wxr(b'')
    with pytest.raises(Exception):inspect_wxr(b'<!DOCTYPE rss [<!ENTITY x SYSTEM "file:///etc/passwd">]><rss>&x;</rss>')
    with pytest.raises(ValueError):inspect_wxr(b'<urlset/>')


def test_wxr_api_enforces_auth_and_csrf(factory):
    sid=site(factory,mode='migration')
    payload=wxr(entry(1,'https://old.example/about/'))
    response=factory.post(f'/api/migrations/sites/{sid}/wordpress/wxr-preflight',files={'file':('site.xml',payload)})
    assert response.status_code==200,response.text
    assert response.json()['unique_published_routes']==1
    assert response.json()['ready_for_automatic_publish'] is False
    bad=factory.post(f'/api/migrations/sites/{sid}/wordpress/wxr-preflight',files={'file':('site.xml',b'<urlset/>')})
    assert bad.status_code==400


def test_import_wxr_rejects_dynamic_path_before_writing(factory):
    sid=site(factory,mode='migration')
    payload=wxr(entry(1,'https://old.example/?p=13'))
    response=factory.post(f'/api/sites/{sid}/import',files={'file':('site.xml',payload)})
    assert response.status_code in (400,422)
    assert not any(x['route']=='/' and x['title']=='Page 1' for x in factory.get(f'/api/sites/{sid}/entries').json())


def test_wxr_acf_repeater_survives_import(factory):
    sid=site(factory,mode='migration')
    custom=''.join(meta(k,v) for k,v in {'_features':'field_parent','features':'2',
      '_features_0_name':'field_child','features_0_name':'SUV',
      '_features_1_name':'field_child','features_1_name':'Pickup'}.items())
    payload=wxr(entry(1,'https://old.example/products/a/',custom=custom))
    response=factory.post(f'/api/sites/{sid}/import',files={'file':('site.xml',payload)})
    assert response.status_code==200,response.text
    item=next(x for x in factory.get(f'/api/sites/{sid}/entries').json() if x['route']=='/products/a/')
    assert item['meta']['fields']['features']==[{'name':'SUV'},{'name':'Pickup'}]
    assert item['meta']['acf_repeaters']=={'features':[{'name':'SUV'},{'name':'Pickup'}]}