import importlib
import os
import sys
from pathlib import Path

from pyrogram import Client
from pyrogram.enums import MessagesFilter, ParseMode
from pyrogram.types import Message

from Hellbot.core import ENV, Config, Symbols

from . import HelpMenu, bot, db, handler, hellbot, on_message


@on_message("help", allow_stan=True)
async def help(client: Client, message: Message):
    hell = await hellbot.edit(message, "**Processing...**")
    if len(message.command) == 1:
        try:
            result = await client.get_inline_bot_results(bot.me.username, "help_menu")
            await client.send_inline_bot_result(
                message.chat.id,
                result.query_id,
                result.results[0].id,
                True,
            )
            return await hell.delete()
        except Exception as e:
            await hellbot.error(hell, str(e), 20)
            return

    plugin = await hellbot.input(message)
    if plugin.lower() in Config.CMD_MENU:
        try:
            await hellbot.edit(
                hell, Config.CMD_MENU[plugin.lower()], ParseMode.MARKDOWN
            )
            return
        except Exception as e:
            await hellbot.error(hell, str(e), 20)
            return

    available_plugins = f"{Symbols.bullet} **𝖠𝗏𝖺𝗂𝗅𝖺𝖻𝗅𝖾 𝗉𝗅𝗎𝗀𝗂𝗇𝗌:**\n\n"
    for i in sorted(list(Config.CMD_MENU.keys())):
        available_plugins += f"`{i}`, "
    available_plugins = available_plugins[:-2]
    available_plugins += (
        f"\n\n𝖣𝗈 `{handler}help <plugin name>` 𝗍𝗈 𝗀𝖾𝗍 𝖽𝖾𝗍𝖺𝗂𝗅𝖾𝖽 𝗂𝗇𝖿𝗈 𝗈𝖿 𝗍𝗁𝖺𝗍 𝗉𝗅𝗎𝗀𝗂𝗇."
    )
    await hellbot.edit(hell, available_plugins, ParseMode.MARKDOWN)


@on_message("repo", allow_stan=True)
async def repo(_, message: Message):
    REPO_TEXT = (
        "__🍀 𝖱𝖾𝗉𝗈:__ [Github](https://github.com/The-HellBot/HellBot)\n\n"
        "__🍀 Updates:__ @Its_HellBot\n"
        "__🍀 Support:__ @HellBot_Chats\n\n"
        "**By ©️ @HellBot_Networks**"
    )
    await hellbot.edit(message, REPO_TEXT, no_link_preview=True)


@on_message("plinfo", allow_stan=True)
async def plugin_info(_, message: Message):
    plugin = await hellbot.input(message)
    if plugin.lower() in Config.CMD_MENU:
        try:
            await hellbot.edit(
                message, Config.CMD_MENU[plugin.lower()], ParseMode.MARKDOWN
            )
            return
        except Exception as e:
            await hellbot.error(message, str(e), 20)
            return
    await hellbot.error(message, f"**Invalid Plugin Name:** `{plugin}`", 20)


@on_message("cmdinfo", allow_stan=True)
async def command_info(_, message: Message):
    cmd = await hellbot.input(message)
    if cmd.lower() in Config.CMD_INFO:
        try:
            cmd_dict = Config.CMD_INFO[cmd.lower()]
            template = (
                f"**🍀 𝖯𝗅𝗎𝗀𝗂𝗇:** `{cmd_dict['plugin']}.py`\n\n"
                f"**{Symbols.anchor} 𝖢𝗈𝗆𝗆𝖺𝗇𝖽:** `{cmd_dict['command']}`\n"
                f"**{Symbols.anchor} 𝖣𝖾𝗌𝖼𝗋𝗂𝗉𝗍𝗂𝗈𝗇:** __{cmd_dict['description']}__\n"
                f"**{Symbols.anchor} 𝖤𝗑𝖺𝗆𝗉𝗅𝖾:** `{cmd_dict['example']}`\n"
                f"**{Symbols.anchor} 𝖭𝗈𝗍𝖾:** __{cmd_dict['note']}__\n"
            )
            await hellbot.edit(message, template, ParseMode.MARKDOWN)
            return
        except Exception as e:
            await hellbot.error(message, str(e), 20)
            return
    await hellbot.error(message, f"**Invalid Command Name:** `{cmd}`", 20)


@on_message("send", allow_stan=True)
async def send_plugin(client: Client, message: Message):
    if len(message.command) < 2:
        return await hellbot.delete(message, "Give me a plugin name to send.")

    plugin = message.command[1].lower().replace(".py", "").strip()
    if plugin not in Config.CMD_MENU:
        return await hellbot.delete(message, f"**Invalid Plugin Name:** `{plugin}`")

    try:
        await client.send_document(
            message.chat.id,
            f"./Hellbot/plugins/user/{plugin}.py",
            caption=f"**🍀 𝖯𝗅𝗎𝗀𝗂𝗇:** `{plugin}.py`",
        )
        await hellbot.delete(message, f"**Sent:** `{plugin}.py`")
    except Exception as e:
        await hellbot.error(message, str(e), 20)


@on_message("install", allow_stan=True)
async def install_plugins(_, message: Message):
    if not message.reply_to_message or not message.reply_to_message.document:
        return await hellbot.delete(message, "Reply to a plugin to install it.")

    hell = await hellbot.edit(message, "**Installing...**")
    plugin_path = await message.reply_to_message.download("./Hellbot/plugins/user/")

    if not plugin_path.endswith(".py"):
        os.remove(plugin_path)
        return await hellbot.error(hell, "**Invalid Plugin:** Not a python file.", 20)

    plugin = plugin_path.split("/")[-1].replace(".py", "").strip()
    if plugin in Config.CMD_MENU:
        os.remove(plugin_path)
        return await hellbot.error(
            hell, f"**Plugin Already Installed:** `{plugin}.py`", 20
        )

    if "(" in plugin:
        os.remove(plugin_path)
        return await hellbot.error(
            hell, f"**Plugin Already Installed:** `{plugin}.py`", 20
        )

    try:
        shortname = Path(plugin_path).stem.replace(".py", "")
        path = Path(f"Hellbot/plugins/user/{shortname}.py")
        name = "Hellbot.plugins.user." + shortname
        spec = importlib.util.spec_from_file_location(name, path)
        load = importlib.util.module_from_spec(spec)
        spec.loader.exec_module(load)
        sys.modules["Hellbot.plugins.user." + shortname] = load
        await hellbot.edit(hell, f"**Installed:** `{plugin}.py`")
    except Exception as e:
        await hellbot.error(hell, str(e), 20)
        os.remove(plugin_path)


@on_message("uninstall", allow_stan=True)
async def uninstall_plugins(_, message: Message):
    if len(message.command) < 2:
        return await hellbot.delete(message, "Give me a plugin name to uninstall.")

    plugin = message.command[1].lower().replace(".py", "").strip()
    if plugin not in Config.CMD_MENU:
        return await hellbot.delete(message, f"**Invalid Plugin Name:** `{plugin}`")

    try:
        os.remove(f"./Hellbot/plugins/user/{plugin}.py")
        for i in Config.HELP_DICT[plugin]["commands"]:
            cmd = i["command"]
            for i in hellbot.users:
                i.remove_handler(cmd)
            del Config.CMD_INFO[cmd]
        del Config.HELP_DICT[plugin]
        del Config.CMD_MENU[plugin]
        await hellbot.delete(message, f"**Uninstalled:** `{plugin}.py`")
    except Exception as e:
        await hellbot.error(message, str(e), 20)


@on_message("installall", allow_stan=True)
async def installall(client: Client, message: Message):
    if len(message.command) < 2:
        return await hellbot.delete(
            message, "Give me channel username to install plugins."
        )

    try:
        chat = await client.get_chat(message.command[1])
    except Exception as e:
        return await hellbot.delete(message, f"**Invalid Channel Username:** `{e}`")

    hell = await hellbot.edit(message, f"**Installing plugins from {chat.title}...**")
    finalStr = f"{Symbols.check_mark} **𝖯𝗅𝗎𝗀𝗂𝗇𝗌 𝖨𝗇𝗌𝗍𝖺𝗅𝗅𝖾𝖽: {chat.title}**\n\n"
    count = 0

    async for msg in client.search_messages(chat.id, filter=MessagesFilter.DOCUMENT):
        if msg.document.file_name.endswith(".py"):
            dwl_path = await msg.download("./Hellbot/plugins/user/")
            plugin = dwl_path.split("/")[-1].replace(".py", "").strip()
            if plugin in Config.CMD_MENU:
                os.remove(dwl_path)
                finalStr += (
                    f"   {Symbols.anchor} `{plugin}.py` - **𝖠𝗅𝗋𝖾𝖺𝖽𝗒 𝖨𝗇𝗌𝗍𝖺𝗅𝗅𝖾𝖽!**\n"
                )
                continue
            if "(" in plugin:
                os.remove(dwl_path)
                finalStr += (
                    f"   {Symbols.anchor} `{plugin}.py` - **𝖠𝗅𝗋𝖾𝖺𝖽𝗒 𝖨𝗇𝗌𝗍𝖺𝗅𝗅𝖾𝖽!**\n"
                )
                continue
            try:
                shortname = Path(dwl_path).stem.replace(".py", "")
                path = Path(f"Hellbot/plugins/user/{shortname}.py")
                name = "Hellbot.plugins.user." + shortname
                spec = importlib.util.spec_from_file_location(name, path)
                load = importlib.util.module_from_spec(spec)
                spec.loader.exec_module(load)
                sys.modules["Hellbot.plugins.user." + shortname] = load
                count += 1
                finalStr += f"   {Symbols.anchor} `{plugin}.py` - **𝖨𝗇𝗌𝗍𝖺𝗅𝗅𝖾𝖽!**\n"
            except Exception as e:
                os.remove(dwl_path)
                finalStr += (
                    f"   {Symbols.anchor} `{plugin}.py` - **𝖤𝗋𝗋𝗈𝗋 𝖨𝗇𝗌𝗍𝖺𝗅𝗅𝗂𝗇𝗀!**\n"
                )
                continue

    finalStr += f"\n**🍀 𝖳𝗈𝗍𝖺𝗅 𝖯𝗅𝗎𝗀𝗂𝗇𝗌 𝖨𝗇𝗌𝗍𝖺𝗅𝗅𝖾𝖽:** `{count}`"
    await hell.edit(finalStr, ParseMode.MARKDOWN, disable_web_page_preview=True)


@on_message("unload", allow_stan=True)
async def unload_plugins(_, message: Message):
    if len(message.command) < 2:
        return await hellbot.delete(message, "Give me a plugin name to unload.")

    plugin = message.command[1].lower().replace(".py", "").strip()
    if plugin not in Config.CMD_MENU:
        return await hellbot.delete(message, f"**Invalid Plugin Name:** `{plugin}`")

    unloaded = await db.get_env(ENV.unload_plugins) or ""
    unloaded = unloaded.split(" ")
    if plugin in unloaded:
        return await hellbot.delete(message, f"**Already Unloaded:** `{plugin}.py`")

    unloaded.append(plugin)
    await db.set_env(ENV.unload_plugins, " ".join(unloaded))
    await hellbot.delete(
        message, f"**Unloaded:** `{plugin}.py` \n\n__Restart the bot to see changes.__"
    )


@on_message("load", allow_stan=True)
async def load_plugins(_, message: Message):
    if len(message.command) < 2:
        return await hellbot.delete(message, "Give me a plugin name to load.")

    plugin = message.command[1].lower().replace(".py", "").strip()
    unloaded = await db.get_env(ENV.unload_plugins) or ""
    unloaded = unloaded.split(" ")
    if plugin not in unloaded:
        return await hellbot.delete(message, f"**Already Loaded:** `{plugin}.py`")

    unloaded.remove(plugin)
    await db.set_env(ENV.unload_plugins, " ".join(unloaded))
    await hellbot.delete(
        message, f"**Loaded:** `{plugin}.py` \n\n__Restart the bot to see changes.__"
    )


HelpMenu("help").add(
    "help",
    "<plugin name>",
    "Get the detailed help menu for that mentioned plugin or get the whole help menu instead.",
    "help alive",
).add("repo", None, "Get the repo link of the bot.", "repo").add(
    "plinfo",
    "<plugin name>",
    "Get the detailed info of the mentioned plugin.",
    "plinfo alive",
).add(
    "cmdinfo",
    "<command name>",
    "Get the detailed info of the mentioned command.",
    "cmdinfo alive",
).add(
    "send", "<plugin name>", "Send the mentioned plugin.", "send alive"
).add(
    "install",
    "<reply to plugin>",
    "Install the replied plugin.",
    None,
    "Do not install plugins from untrusted sources, they can be a malware. We're not responsible for any damage caused by them.",
).add(
    "uninstall",
    "<plugin name>",
    "Uninstall the mentioned plugin.",
    "uninstall alive",
    "This will remove all the commands of that plugin from the bot till a restart is initiated.",
).add(
    "installall",
    "<channel username>",
    "Install all the plugins from the mentioned channel.",
    "installall @plugins_for_hellbot",
    "Do not install plugins from untrusted sources, they can be a malware. We're not responsible for any damage caused by them.",
).add(
    "unload",
    "<plugin name>",
    "Unload the mentioned plugin.",
    "unload alive",
    "This will remove all the commands of that plugin from the bot permanently.",
).add(
    "load",
    "<plugin name>",
    "Load the mentioned plugin.",
    "load alive",
    "This will load all the commands of that plugin to the bot that was previously unloaded permanently.",
)