# -*- coding: utf-8 -*-
"""原创离线合成样例；不连接模型、不读取账户。输出位于脚本旁。
已有输入保留，修改输入后可以重跑。失败边界由 --negative 单独演示。
"""
from pathlib import Path
import sys, json, csv, math, io, hashlib, html, base64, re
sys.stdout.reconfigure(encoding='utf-8')
sys.stderr.reconfigure(encoding='utf-8')
BASE = Path(__file__).resolve().parent
NEG = '--negative' in sys.argv
def write(name, value):
    p=BASE/name; p.parent.mkdir(parents=True,exist_ok=True)
    if isinstance(value,bytes): p.write_bytes(value)
    else: p.write_text(value,encoding='utf-8',newline='')
def seed(name,value):
    if not (BASE/name).exists(): write(name,value)
def jwrite(name,value): write(name,json.dumps(value,ensure_ascii=False,indent=2))
def jseed(name,value):
    if not (BASE/name).exists(): jwrite(name,value)
def load(name): return json.loads((BASE/name).read_text(encoding='utf-8'))
def table(name,heads,rows):
    f=io.StringIO(newline='');w=csv.writer(f);w.writerow(heads);w.writerows(rows);write(name,f.getvalue())
def page(name,title,body):
    write(name,'<!doctype html><html lang="zh-CN"><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>'+html.escape(title)+'</title><style>body{max-width:1000px;margin:2rem auto;padding:0 1rem;font:17px/1.7 system-ui}table{border-collapse:collapse}td,th{border:1px solid #aaa;padding:.5rem}pre{white-space:pre-wrap;overflow-wrap:anywhere}img,svg{max-width:100%;height:auto}a{color:#125caa}</style><h1>'+html.escape(title)+'</h1>'+body+'</html>')
def emit(data): print(json.dumps(data,ensure_ascii=False))

import copy
original={'nbformat':4,'nbformat_minor':5,'metadata':{'private':'SYNTH_METADATA'},'cells':[{'id':'code','cell_type':'code','metadata':{},'execution_count':7,'source':'# SYNTH_SOURCE 必须人工检查\nprint(42)','outputs':[{'output_type':'stream','name':'stdout','text':'SYNTH_STDOUT'},{'output_type':'display_data','metadata':{},'data':{'text/html':'<b>SYNTH_HTML</b>'}}]},{'id':'note','cell_type':'markdown','metadata':{},'source':'合成截图已移除','attachments':{'SYNTH_ATTACHMENT.png':{'image/png':'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVR4nGP4z8AAAAMBAQDJ/pLvAAAAAElFTkSuQmCC'}}}]}
jseed('synthetic-analysis.ipynb',original)
raw=(BASE/'synthetic-analysis.ipynb').read_bytes(); n=load('synthetic-analysis.ipynb');out=copy.deepcopy(n);removed=[];out['metadata']={}
for i,c in enumerate(out['cells']):
    c['metadata']={}
    if c['cell_type']=='code': removed.append([i,'outputs',len(c.get('outputs',[]))]);c['outputs']=[];c['execution_count']=None
    if 'attachments' in c: removed.append([i,'attachments',list(c['attachments'])]);del c['attachments']
jwrite('share-copy.ipynb',out);jwrite('removed.json',removed)
if NEG: raise ValueError('源代码仍含 SYNTH_SOURCE；清输出不能自动宣布无秘密')
emit({'removed_entries':len(removed),'source_requires_review':'SYNTH_SOURCE' in json.dumps(out),'original_sha256':hashlib.sha256(raw).hexdigest()})