import time
import requests

from typing import TYPE_CHECKING, TypeVar

if TYPE_CHECKING:
    from ica_typing import NewMessage, IcaClient
else:
    NewMessage = TypeVar("NewMessage")
    IcaClient = TypeVar("IcaClient")

_version_ = "2.0.0-rs"

def format_data_size(data_bytes: float) -> str:
    data_lens = ["B", "KB", "MB", "GB", "TB"]
    data_len = "0B"
    for i in range(5):
        if data_bytes < 1024:
            data_bytes = round(data_bytes, 5)
            data_len = f"{data_bytes}{data_lens[i]}"
            break
        else:
            data_bytes /= 1024
    return data_len


def format_hit_count(count: int) -> str:
    """数据分段, 四位一个下划线

    Args:
        count (int): 数据

    Returns:
        str: 格式化后的数据
    1 -> 1
    1000 -> 1000
    10000 -> 1_0000
    100000 -> 10_0000
    1000000 -> 100_0000
    """
    count_str = str(count)
    count_len = len(count_str)
    if count_len <= 4:
        return count_str
    else:
        return "_".join(count_str[i:i + 4] for i in range(0, count_len, 4))

def bmcl(msg: NewMessage, client: IcaClient) -> None:
    req_time = time.time()
    # 记录请求时间
    response = requests.get("https://bd.bangbang93.com/openbmclapi/metric/dashboard")
    if not response.status_code == 200 or response.reason != "OK":
        reply = msg.reply_with(f"请求数据失败\n{response.status_code}")
        client.warn(
            f"数据请求失败, 请检查网络\n{response.status}"
        )
        client.send_message(reply)
        return
    data = response.json()
    data_bytes: float = data["bytes"]
    data_hits: int = data["hits"]
    data_bandwidth: float = data["currentBandwidth"]
    load_str: float = data["load"] * 100
    online_node: int = data["currentNodes"]
    online_bandwidth: int = data["bandwidth"]
    data_len = format_data_size(data_bytes)
    hits_count = format_hit_count(data_hits)
    
    report_msg = (
        f"OpenBMCLAPI 状态面板v{_version_} :\n"
        f"实时信息: {online_node}  带宽: {online_bandwidth}Mbps\n"
        f"负载: {load_str:.2f}%  带宽: {data_bandwidth:.2f}Mbps\n"
        f"当日请求: {hits_count} 数据量: {data_len}\n"
        f"请求时间: {time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(req_time))}\n"
         "数据源: https://bd.bangbang93.com/pages/dashboard"
    )
    client.info(report_msg)
    reply = msg.reply_with(report_msg)
    client.send_message(reply)
    

def on_message(msg: NewMessage, client: IcaClient) -> None:
    if not (msg.is_from_self or msg.is_reply):
        if msg.content == "/bmcl":
            bmcl(msg, client)