#   _____                         _
#  / ____|                       (_)
# | (___   ___  __ _ _____      ___ _ __ ___  _ __ ___   ___ _ __
#  \___ \ / _ \/ _` / __\ \ /\ / / | '_ ` _ \| '_ ` _ \ / _ \ '__|
#  ____) |  __/ (_| \__ \\ V  V /| | | | | | | | | | | |  __/ |
# |_____/ \___|\__,_|___/ \_/\_/ |_|_| |_| |_|_| |_| |_|\___|_|

import asyncio
import json
import subprocess
from typing import Any

import discord
from redbot.core import commands
from redbot.core.bot import Red
from redbot.core.utils import chat_formatting as cf


class Speedtest(commands.Cog):
    """A collection of random utilities."""

    __author__ = ["SeaswimmerTheFsh"]
    __version__ = "1.0.0"

    def __init__(self, bot: Red):
        self.bot = bot

    def format_help_for_context(self, ctx: commands.Context) -> str:
        pre_processed = super().format_help_for_context(ctx) or ""
        n = "\n" if "\n\n" not in pre_processed else ""
        text = [
            f"{pre_processed}{n}",
            f"Cog Version: **{self.__version__}**",
            f"Author: {cf.humanize_list(self.__author__)}"
        ]
        return "\n".join(text)

    async def run_speedtest(self) -> str | Any:
        try:
            process = await asyncio.create_subprocess_exec(
                "speedtest", "-f", "json", "--accept-license",
                stdout=subprocess.PIPE,
                stderr=subprocess.PIPE
            )
        except FileNotFoundError:
            return "Speedtest CLI is not installed."
        stdout, stderr = await process.communicate()
        if process.returncode != 0:
            return stderr.decode("utf-8")
        return json.loads(stdout.decode("utf-8"))

    @commands.command()
    @commands.is_owner()
    async def speedtest(self, ctx: commands.Context) -> None:
        """Run a speedtest."""
        msg = await ctx.maybe_send_embed("Running speedtest...")
        async with ctx.typing():
            r = await self.run_speedtest()
            if await ctx.embed_requested():
                if isinstance(r, str):
                    await msg.edit(embed=discord.Embed(description=f"An error occurred! {r}", color=discord.Colour.red()))
                    return
                embed = discord.Embed(title="Speedtest Results", url=r["result"]["url"], color=await ctx.embed_color())
                embed.add_field(name="Bandwidth", value=f"{r['download']['bandwidth'] / 1_000_000:.2f} Mbps down, {r['upload']['bandwidth'] / 1_000_000:.2f} Mbps up")
                embed.add_field(name="Ping", value=f"Base: {round(r['ping']['latency'])} ms \nDownload: {round(r['download']['latency']['igm'])} ms \nUpload: {round(r['upload']['latency']['igm'])} ms")
                embed.set_image(url=r["result"]["image"] + ".png")
                await msg.edit(embed=embed)
            else:
                if isinstance(r, str):
                    await msg.edit(content=f"An error occurred! {r}")
                    return
                await msg.edit(content=f"**Speedtest Results**\n"
                                    f"**Bandwidth**: {r['download']['bandwidth'] / 1_000_000:.2f} Mbps down, {r['upload']['bandwidth'] / 1_000_000:.2f} Mbps up\n"
                                    f"**Ping**: Base: {round(r['ping']['latency'])} ms, Download: {round(r['download']['latency']['igm'])} ms, Upload: {round(r['upload']['latency']['igm'])} ms\n"
                                    f"**Results**: {r['result']['url']}")