import httpx

import sbenv

async def send_report(msg):
    hook_url = sbenv.get_report_webhook()
    if hook_url is None:
        raise RuntimeError('webhook envvar not specified')

    chunks = chunk_message(msg, wrap_chunks='```')
    chunks.insert(0, '**New Report:**')

    async with httpx.AsyncClient() as client:
        for c in chunks:
            r = await client.post(hook_url, data={'content': c})
            r.raise_for_status()

MAX_MSG_SIZE = 1950

def chunk_message(msg, wrap_chunks=None):
    lines = msg.splitlines()

    startwrap = wrap_chunks + '\n' if wrap_chunks is not None else ''
    endwrap = '\n' + wrap_chunks if wrap_chunks is not None else ''

    msgs = []
    cur_line = startwrap
    for l in lines:
        if len(cur_line) + len(l) >= MAX_MSG_SIZE:
            msgs.append(cur_line + endwrap)
            cur_line = startwrap
        cur_line += '\n' + l

    msgs.append(cur_line + endwrap)
    return msgs