"""docx4j HTTP 客户端 — POST 一份 docx，返回 HTML 字符串"""
import os
import uuid
import json
import urllib.request
from db.database import load_config


def _config():
    return load_config()['wordparse']


def post_docx(path: str, timeout: int | None = None) -> str:
    """返回 HTML 字符串（原始，未做 MathJax/导航注入）"""
    cfg = _config()
    url = cfg['url']
    timeout = timeout or cfg.get('timeout', 600)

    boundary = '----WP' + uuid.uuid4().hex
    with open(path, 'rb') as f:
        data = f.read()
    fn = os.path.basename(path)
    body = (
        f'--{boundary}\r\n'.encode()
        + f'Content-Disposition: form-data; name="file"; filename="{fn}"\r\n'.encode('utf-8')
        + b'Content-Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document\r\n\r\n'
        + data
        + b'\r\n' + f'--{boundary}--\r\n'.encode()
    )
    req = urllib.request.Request(url, data=body, headers={
        'Content-Type': f'multipart/form-data; boundary={boundary}',
        'Content-Length': str(len(body)),
    })
    with urllib.request.urlopen(req, timeout=timeout) as r:
        resp = json.loads(r.read().decode('utf-8'))
    return resp.get('content') or ''


def health() -> bool:
    cfg = _config()
    try:
        with urllib.request.urlopen(cfg['health_url'], timeout=5) as r:
            j = json.loads(r.read().decode('utf-8'))
            return j.get('status') == 'ok'
    except Exception:
        return False