import io
import json
import zipfile
from pathlib import Path
import pytest
from fastapi.testclient import TestClient
from app import db
from app.main import app
from app.core import route_path,ensure_public_url

@pytest.fixture
def client(tmp_path,monkeypatch):
    monkeypatch.setattr(db,'DATA',tmp_path)
    monkeypatch.setattr(db,'DB_FILE',tmp_path/'test.sqlite3')
    monkeypatch.setenv('SITEFORGE_ADMIN_PASSWORD','strong-supervisor-password-2026')
    monkeypatch.setenv('SITEFORGE_SESSION_SECRET','large-random-key-for-test-only-2026-the-test-environment')
    with TestClient(app) as c:
        assert c.get('/api/sites').status_code == 401
        assert c.post('/api/auth/login',json={'password':'strong-supervisor-password-2026'}).status_code == 200
        auth=c.get('/api/auth/me').json()
        c.headers.update({'X-SiteForge-CSRF': auth['csrf']})
        yield c

def create(c,theme='automotive'):
    r=c.post('/api/sites',json={'name':'Example Test','theme':theme,'domain':'https://example.test','mode':'migration'})
    assert r.status_code==201,r.text
    return r.json()['id']

def test_site_and_theme_switch_preserve_content(client):
    a=create(client)
    b=create(client,'industrial')
    payload={'type':'product','title':'Product A','route':'/products/legacy.html','seo_title':'Original SEO Title','seo_description':'Original SEO Description','body':'<p>Hello <strong>world</strong></p>'}
    x=client.post(f'/api/sites/{a}/entries',json=payload)
    assert x.status_code==201,x.text
    assert len(client.get(f'/api/sites/{b}/entries').json())==1
    for theme in ('automotive','industrial','corporate','minimal'):
        assert client.patch(f'/api/sites/{a}',json={'theme':theme}).status_code==200
        info=client.post(f'/api/sites/{a}/builds',json={'mirror_images':False})
        assert info.status_code==200,info.text
        bid=info.json()['version']
        resp=client.get(f'/preview/{a}/{bid}/products/legacy.html')
        assert resp.status_code==200,resp.text[:150]
        assert '<title>Original SEO Title</title>' in resp.text
        assert '<link rel="canonical" href="https://example.test/products/legacy.html">' in resp.text
        assert 'Original SEO Description' in resp.text
        assert 'Hello' in resp.text
        dl=client.get(f'/api/sites/{a}/builds/{bid}/download')
        with zipfile.ZipFile(io.BytesIO(dl.content)) as z:
            assert 'products/legacy.html' in z.namelist()
            assert 'assets/theme.css' in z.namelist()
            assert 'sitemap.xml' in z.namelist()
    assert len(client.get(f'/api/sites/{a}/entries').json())==2

def test_home_blueprint_and_static_links(client):
    sid=create(client)
    pages=client.get(f'/api/sites/{sid}/entries').json()
    home=pages[0]
    assert home['route']=='/'
    meta={'blocks':[{'type':'features','title':'优势清单','items':[{'title':'服务能力','text':'广泛覆盖'}]},
                    {'type':'cta','title':'马上合作','href':'/contact/'}]}
    assert client.patch(f'/api/sites/{sid}/entries/{home["id"]}',json={'meta':meta}).status_code==200
    r=client.post(f'/api/sites/{sid}/builds',json={})
    bid=r.json()['version']
    txt=client.get(f'/preview/{sid}/{bid}/').text
    assert '优势清单' in txt and '马上合作' in txt

def test_duplicate_routes_and_unsafe_html(client):
    sid=create(client)
    x=client.post(f'/api/sites/{sid}/entries',json={'type':'page','title':'X','route':'/test/','body':'<script>alert(1)</script><a href="javascript:alert(1)">x</a>'})
    assert x.status_code==201
    y=client.post(f'/api/sites/{sid}/entries',json={'type':'page','title':'Y','route':'/test/'})
    assert y.status_code==400
    z=client.get(f'/api/sites/{sid}/entries').json()
    it=next(x for x in z if x['route']=='/test/')
    assert '<script>' not in it['body']
    assert 'href="javascript:' not in it['body']
    assert client.post(f'/api/sites/{sid}/entries',json={'type':'page','title':'unsafe','route':'/x/../y/'}).status_code==400

def test_data_import_and_presets(client):
    sid=create(client)
    csv_data=b'type,title,route,seo_title\nproduct,Vehicle 1,/cars/vehicle-1/,Vehicle One SEO\nproduct,Vehicle 2,/cars/vehicle-2/,Vehicle Two SEO\n'
    response=client.post(f'/api/sites/{sid}/import',data={'on_conflict':'skip'},files={'file':('cars.csv',csv_data,'text/csv')})
    assert response.status_code==200,response.text
    assert response.json()['imported']==2
    r2=client.post(f'/api/sites/{sid}/import',data={'on_conflict':'skip'},files={'file':('cars.csv',csv_data,'text/csv')})
    assert r2.json()['skipped']==2
    save=client.post(f'/api/sites/{sid}/save-preset',json={'name':'My Master Theme'})
    assert save.status_code==200
    reuse=client.post('/api/sites',json={'name':'New from Preset','preset_id':save.json()['id']})
    assert reuse.status_code==201
    assert reuse.json()['theme']=='automotive'

def test_wxr_legacy_urls_meta(client):
    sid=create(client)
    wxr=b'''<?xml version="1.0" encoding="utf-8"?><rss xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:wp="http://wordpress.org/export/1.2/" version="2.0"><channel><item>
<title>News</title><link>https://old.example.org/news/article-01.html</link>
<wp:post_type>post</wp:post_type><wp:status>publish</wp:status><wp:post_name>article-01</wp:post_name>
<content:encoded><![CDATA[<h2>Article</h2><p>WordPress body</p>]]></content:encoded>
<wp:postmeta><wp:meta_key>_yoast_wpseo_title</wp:meta_key><wp:meta_value>Exact SEO Title</wp:meta_value></wp:postmeta>
</item></channel></rss>'''
    response=client.post(f'/api/sites/{sid}/import',files={'file':('wordpress.xml',wxr,'application/xml')},data={'on_conflict':'skip'})
    assert response.status_code==200,response.text
    arr=client.get(f'/api/sites/{sid}/entries').json()
    match=next(p for p in arr if p['title']=='News')
    assert match['route']=='/news/article-01.html'
    assert match['seo_title']=='Exact SEO Title'
    assert 'WordPress body' in match['body']

def test_media_archive(client):
    sid=create(client)
    buffer=io.BytesIO()
    with zipfile.ZipFile(buffer,'w') as zipf:
        zipf.writestr('wp-content/uploads/2024/01/product.jpg',b'\xff\xd8\xff\xd9')
        zipf.writestr('../bad.php',b'evil')
    buffer.seek(0)
    r=client.post(f'/api/sites/{sid}/media-archive',files={'file':('uploads.zip',buffer.getvalue(),'application/zip')})
    assert r.status_code==200,r.text
    assert r.json()['imported']==1
    built=client.post(f'/api/sites/{sid}/builds',json={})
    assert built.status_code==200
    z=client.get(f'/api/sites/{sid}/builds/{built.json()["version"]}/download')
    with zipfile.ZipFile(io.BytesIO(z.content)) as archive:
        assert 'wp-content/uploads/2024/01/product.jpg' in archive.namelist()
        assert not any('bad.php' in s for s in archive.namelist())

def test_redirect_and_ssrf_reject(client):
    sid=create(client)
    assert client.post(f'/api/sites/{sid}/redirects',json={'old_path':'/old.html','new_path':'/new/','status_code':301}).status_code==200
    r=client.post(f'/api/sites/{sid}/builds',json={})
    assert r.status_code==200
    assert len(client.get(f'/api/sites/{sid}/redirects').json())==1
    bad=client.post(f'/api/sites/{sid}/crawl',json={'url':'http://127.0.0.1:8787/'})
    assert bad.status_code==400
    bad=client.post(f'/api/sites/{sid}/crawl',json={'url':'file:///etc/passwd'})
    assert bad.status_code==400


def test_login_and_csrf_enforcement(client):
    session=client.cookies.get('siteforge_session')
    assert session
    me=client.get('/api/auth/me')
    assert me.json()['version']=='5.0.0'
    assert me.headers['x-frame-options']=='SAMEORIGIN'
    assert "frame-ancestors 'self'" in me.headers['content-security-policy']
    assert 'camera=()' in me.headers['permissions-policy']
    original=client.headers.pop('X-SiteForge-CSRF')
    assert client.post('/api/sites',json={'name':'Blocked'}).status_code == 403
    client.headers['X-SiteForge-CSRF']=original
    assert client.get('/api/sites').status_code == 200
    assert client.post('/api/auth/logout').status_code == 200
    assert client.get('/api/sites').status_code == 401
    assert client.get('/').status_code in (200, 303)  # TestClient follows /login
    assert '管理员密码' in client.get('/login').text


def test_health_uses_current_application_version(client):
    client.cookies.clear()
    assert client.get('/api/health').json()=={'status':'ok','name':'SiteForge','version':'5.0.0'}

def test_build_download_requires_login(client):
    sid=create(client)
    result=client.post(f'/api/sites/{sid}/builds',json={}).json()
    bid=result['version']
    ok=client.get(f'/api/sites/{sid}/builds/{bid}/download')
    assert ok.status_code==200
    client.cookies.clear()
    assert client.get(f'/api/sites/{sid}/builds/{bid}/download').status_code==401
    assert '/login' in client.get(f'/preview/{sid}/{bid}/').url.path

def test_visual_blocks_auto_bind_save_build_and_site_isolation(client):
    sid=create(client,'corporate')
    other=create(client,'minimal')
    prod=client.post(f'/api/sites/{sid}/entries',json={'type':'product','title':'CUSTOM SUV 01','route':'/autos/custom-01/','summary':'Quality example SUV'}).json()
    homepage=next(x for x in client.get(f'/api/sites/{sid}/entries').json() if x['route']=='/')
    blocks=[
      {'id':'hero-block-1','type':'hero','title':'{{site.name}}','subtitle':'WELCOME','description':'{{site.tagline}}','button':'汽车列表','href':'/product/'},
      {'id':'products-1','type':'collection','title':'车型推荐','source':'product','limit':6,'columns':3},
      {'id':'stats-block-1','type':'stats','title':'统计数据','items':[{'value':'3,000+','label':'全球交付'}]}
    ]
    save=client.put(f'/api/sites/{sid}/pages/{homepage["id"]}/blueprint',json={'blocks':blocks,'page_template':'home'})
    assert save.status_code==200,save.text
    preview=client.post(f'/api/sites/{sid}/pages/{homepage["id"]}/editor-preview',json={'blocks':blocks,'page_template':'home'})
    assert preview.status_code==200
    assert 'CUSTOM SUV 01' in preview.text and '车型推荐' in preview.text
    assert 'AUTOS' not in preview.text
    resp=client.post(f'/api/sites/{sid}/builds',json={})
    assert resp.status_code==200,resp.text
    assert resp.json()['blueprint_blocks']>=3
    html=client.get(f'/preview/{sid}/{resp.json()["version"]}/').text
    assert 'CUSTOM SUV 01' in html and '车型推荐' in html
    assert 'assets/blocks.css' in html
    assert client.get(f'/api/sites/{other}/pages/{homepage["id"]}/blueprint').status_code==404
    assert client.get(f'/editor/{sid}/{homepage["id"]}').status_code==200


def test_schema_navigation_and_preset(client):
    sid=create(client)
    fields=[{'name':'model_code','label':'产品编号','type':'text'},{'name':'horsepower','label':'马力','type':'number'}]
    r=client.put(f'/api/sites/{sid}/schemas/product',json=fields)
    assert r.status_code==200,r.text
    assert client.get(f'/api/sites/{sid}/schemas').json()['product']==fields
    assert client.put(f'/api/sites/{sid}/schemas/product',json=[{'name':'../not_safe','type':'text'}]).status_code==400
    nav=[{'title':'首页','route':'/'},{'title':'车型','route':'/product/'}]
    assert client.put(f'/api/sites/{sid}/navigation',json=nav).status_code==200
    assert client.get(f'/api/sites/{sid}').json()['settings']['nav']==nav
    homepage=next(x for x in client.get(f'/api/sites/{sid}/entries').json() if x['route']=='/')
    r=client.post(f'/api/sites/{sid}/pages/{homepage["id"]}/blueprint/preset',json={'page_template':'about'})
    assert r.status_code==200
    assert len(r.json()['blocks'])==3
    assert client.get('/api/themes').json()[0]['page_templates']


def test_blocks_validation_escaping_and_disabled(client):
    sid=create(client)
    homepage=next(x for x in client.get(f'/api/sites/{sid}/entries').json() if x['route']=='/')
    blocks=[{'id':'dangerous-x','type':'hero','title':'<img src=x onerror=alert(1)>','image':'javascript:alert(1)','href':'javascript:alert(1)'},
            {'id':'hidden-one','type':'richtext','title':'should be hidden','body':'<script>alert(1)</script>','visible':False}]
    res=client.post(f'/api/sites/{sid}/pages/{homepage["id"]}/editor-preview',json={'blocks':blocks,'page_template':'home'})
    assert res.status_code==200,res.text
    assert 'onerror=alert' in res.text  # text escaped, never a literal img tag
    assert '&lt;img src=x onerror' in res.text
    assert 'href="/"' in res.text or 'href="./"' in res.text
    assert 'should be hidden' not in res.text
    assert client.put(f'/api/sites/{sid}/pages/{homepage["id"]}/blueprint',json={'blocks':[{'id':'bad-id','type':'script','title':'Bad'}],'page_template':'home'}).status_code==400

def test_bulk_theme_assembly_preserves_legacy_url_and_seo(client):
    sid=create(client,'industrial')
    resp=client.post(f'/api/sites/{sid}/entries',json={'type':'product','title':'HDPE Pipe','route':'/old-product/hdpe-pipe.html','body':'<h2>Legacy Technical Details</h2>','seo_title':'HDPE pipe SEO forever','seo_description':'Exact old metadata'})
    assert resp.status_code==201
    entry=resp.json()
    assert not entry['meta'].get('blocks')
    done=client.post(f'/api/sites/{sid}/apply-theme',json={'mode':'missing'})
    assert done.status_code==200,done.text
    assert done.json()['updated']>=1
    updated=client.get(f'/api/sites/{sid}/entries').json()
    final=next(x for x in updated if x['id']==entry['id'])
    assert final['route']=='/old-product/hdpe-pipe.html'
    assert final['seo_title']=='HDPE pipe SEO forever'
    assert len(final['meta']['blocks'])>=2
    built=client.post(f'/api/sites/{sid}/builds',json={})
    assert built.status_code==200,built.text
    html=client.get(f'/preview/{sid}/{built.json()["version"]}/old-product/hdpe-pipe.html').text
    assert 'Legacy Technical Details' in html
    assert '<title>HDPE pipe SEO forever</title>' in html

def test_scaffold_standard_pages_safe_idempotent(client):
    sid=create(client)
    first=client.post(f'/api/sites/{sid}/scaffold')
    assert first.status_code==200
    assert '/about/' in first.json()['created']
    second=client.post(f'/api/sites/{sid}/scaffold')
    assert second.status_code==200 and not second.json()['created']
    lst=client.get(f'/api/sites/{sid}/entries').json()
    assert len([x for x in lst if x['route']=='/about/'])==1
    build=client.post(f'/api/sites/{sid}/builds',json={})
    assert build.status_code==200,build.text

def test_attributes_bind_imported_and_typed_fields(client):
    sid=create(client,'automotive')
    product=client.post(f'/api/sites/{sid}/entries',json={'type':'product','title':'BYD SUV','route':'/product/byd-suv/','meta':{'fields':{'brand':'BYD','model':'SUV 1','specs':'Electric'}}})
    assert product.status_code==201
    eid=product.json()['id']
    blocks=[{'id':'attributes-1','type':'attributes','title':'Technical Parameters'}]
    save=client.put(f'/api/sites/{sid}/pages/{eid}/blueprint',json={'blocks':blocks,'page_template':'product'})
    assert save.status_code==200,save.text
    b=client.post(f'/api/sites/{sid}/builds',json={})
    assert b.status_code==200,b.text
    page=client.get(f'/preview/{sid}/{b.json()["version"]}/product/byd-suv/').text
    assert 'Technical Parameters' in page and '>BYD<' in page and 'SUV 1' in page