import re
import hoshino
from hoshino import sucmd, HoshinoBot
from hoshino.typing import CommandSession, CQHttpError, MessageSegment as ms

@sucmd('billing')
async def billing(session: CommandSession):
    bot = session.bot
    args = session.current_arg_text.split()
    try:
        for i in range(0, len(args), 2):
            args[i] = int(args[i])
            assert re.fullmatch(r'\d{4}-\d{2}-\d{2}', args[i + 1]), f"{args[i + 1]}不是合法日期"
    except (ValueError, AssertionError) as e:
        await session.finish(str(e))

    try:
        sid_group = {}
        for sid in hoshino.get_self_ids():
            gs = await bot.get_group_list(self_id=sid)
            sid_group[sid] = [g['group_id'] for g in gs]
    except CQHttpError as e:
        await session.finish(str(e))

    failed = []
    not_found = []
    for i in range(0, len(args), 2):
        gid = args[i]
        date = args[i + 1]
        bill_sent_flag = False
        for sid, groups in sid_group.items():
            if gid in groups:
                msg = f"本群bot将于/已于{date}到期，请及时联系{hoshino.config.SUPERUSERS[0]}续费，以免影响使用！"
                oid = await get_group_owner_id(bot, sid, gid)
                if oid:
                    msg = str(ms.at(oid)) + msg
                try:
                    await bot.send_group_msg(self_id=sid, group_id=gid, message=msg)
                    bill_sent_flag = True
                except CQHttpError:
                    failed.append(gid)
                    try:
                        await session.send(f"bot{sid} 向 群{gid} 发送billing失败！")
                    except CQHttpError:
                        hoshino.logger.critical((f"bot{sid} 向 群{gid} 发送billing失败！且回报SUPERUSER失败！"))
        if not bill_sent_flag and gid not in failed:
            not_found.append(gid)

    msg = f"发送bill完毕！\n失败{len(failed)}：{failed}\n未找到{len(not_found)}：{not_found}"
    await session.send(msg)


async def get_group_owner_id(bot: HoshinoBot, self_id, group_id) -> int:
    try:
        members = await bot.get_group_member_list(self_id=self_id, group_id=group_id)
    except CQHttpError:
        return 0
    for m in members:
        if m.get('role') == 'owner':
            return m.get('user_id', 0)
    return 0