__version__ = "dev-0.4.6"
__all__ = ["Discordbot-chatai-webpanel (Discord)"]
__author__ = "SimolZimol"

from flask import Flask, render_template, redirect, url_for, request, session, jsonify, flash
from requests_oauthlib import OAuth2Session
import os
import mysql.connector
from datetime import datetime
import subprocess

app = Flask(__name__)
app.secret_key = os.getenv("FLASK_SECRET_KEY")

# DB configuration
DB_HOST = os.getenv("DB_HOST")
DB_PORT = os.getenv("DB_PORT")
DB_USER = os.getenv("DB_USER")
DB_PASS = os.getenv("DB_PASSWORD")
DB_NAME = os.getenv("DB_DATABASE")

# Discord OAuth2 configuration
DISCORD_CLIENT_ID = os.getenv("DISCORD_CLIENT_ID")
DISCORD_CLIENT_SECRET = os.getenv("DISCORD_CLIENT_SECRET")
DISCORD_REDIRECT_URI = os.getenv("DISCORD_REDIRECT_URI")
DISCORD_OAUTH2_URL = "https://discord.com/api/oauth2/authorize"
DISCORD_TOKEN_URL = "https://discord.com/api/oauth2/token"
DISCORD_API_URL = "https://discord.com/api/users/@me"
os.environ['OAUTHLIB_INSECURE_TRANSPORT'] = '1'

# Global Bot Management
bot_process = None

def get_db_connection():
    """Returns a MySQL connection."""
    return mysql.connector.connect(
        host=DB_HOST,
        port=DB_PORT,
        user=DB_USER,
        password=DB_PASS,
        database=DB_NAME
    )

def make_discord_session(token=None, state=None):
    return OAuth2Session(
        DISCORD_CLIENT_ID,
        token=token,
        state=state,
        redirect_uri=DISCORD_REDIRECT_URI,
        scope=["identify"]
    )

def bot_status():
    """Checks if the bot is running."""
    global bot_process
    if bot_process is None:
        return False
    return bot_process.poll() is None  # None means the bot is still running

def start_bot():
    """Starts the bot process."""
    global bot_process
    if not bot_status():
        bot_process = subprocess.Popen(["python", "bot.py"])
    else:
        print("Bot is already running.")

def stop_bot():
    """Stops the bot process."""
    global bot_process
    if bot_process and bot_status():
        bot_process.terminate()
        bot_process.wait()
        bot_process = None
    else:
        print("Bot is not running.")

def is_global_admin():
    """Checks if the user has global admin privileges."""
    if "discord_user" in session:
        user_id = session["discord_user"]["id"]
        connection = get_db_connection()
        cursor = connection.cursor(dictionary=True)
        cursor.execute("SELECT global_permission FROM bot_data WHERE user_id = %s", (user_id,))
        user_data = cursor.fetchone()
        cursor.close()
        connection.close()
        if user_data and user_data["global_permission"] >= 8:
            return True
    return False

def is_server_admin(guild_id):
    """Checks if the user is an admin of the specified server."""
    if "discord_user" in session:
        user_id = session["discord_user"]["id"]
        connection = get_db_connection()
        cursor = connection.cursor(dictionary=True)
        cursor.execute("SELECT permission FROM user_data WHERE user_id = %s AND guild_id = %s", (user_id, guild_id))
        user_data = cursor.fetchone()
        cursor.close()
        connection.close()
        if user_data and user_data["permission"] >= 8:
            return True
    return False

@app.route("/")
def landing_page():
    """Displays the landing page."""
    return render_template("landing.html")

@app.route("/login")
def login():
    """Initiates the Discord OAuth2 login flow."""
    discord = make_discord_session()
    authorization_url, state = discord.authorization_url(DISCORD_OAUTH2_URL)
    session['oauth_state'] = state
    return redirect(authorization_url)

@app.route("/callback")
def callback():
    """Processes the Discord OAuth2 callback."""
    discord = make_discord_session(state=session.get("oauth_state"))
    token = discord.fetch_token(DISCORD_TOKEN_URL, client_secret=DISCORD_CLIENT_SECRET, authorization_response=request.url)
    session['oauth_token'] = token
    user_info = discord.get(DISCORD_API_URL).json()
    session['discord_user'] = user_info

    connection = get_db_connection()
    cursor = connection.cursor(dictionary=True)
    cursor.execute("SELECT global_permission FROM bot_data WHERE user_id = %s", (user_info["id"],))
    global_user_data = cursor.fetchone()
    cursor.close()
    connection.close()

    if global_user_data and global_user_data["global_permission"] >= 8:
        return redirect(url_for("admin_dashboard"))
    else:
        return redirect(url_for("server_select"))

@app.route("/server_select")
def server_select():
    """Displays a list of servers for the user to select from."""
    if "discord_user" in session:
        user_id = session["discord_user"]["id"]
        connection = get_db_connection()
        cursor = connection.cursor(dictionary=True)
        cursor.execute("SELECT DISTINCT guild_id FROM user_data WHERE user_id = %s", (user_id,))
        guilds = cursor.fetchall()
        cursor.close()
        connection.close()

        return render_template("server_select.html", guilds=guilds)
    return redirect(url_for("login"))

@app.route("/server_dashboard/<int:guild_id>")
def server_dashboard(guild_id):
    """Displays the server dashboard for the selected server."""
    if "discord_user" in session:
        if is_server_admin(guild_id):
            connection = get_db_connection()
            cursor = connection.cursor(dictionary=True)
            cursor.execute("SELECT * FROM user_data WHERE guild_id = %s", (guild_id,))
            user_data = cursor.fetchall()
            cursor.close()
            connection.close()
            return render_template("server_dashboard.html", guild_id=guild_id, user_data=user_data)
        return "Access denied", 403
    return redirect(url_for("login"))

@app.route("/admin_dashboard")
def admin_dashboard():
    """Displays the global admin dashboard."""
    if "discord_user" in session and is_global_admin():
        return render_template("admin_dashboard.html", bot_running=bot_status())
    return redirect(url_for("login"))

@app.route("/start_bot")
def start():
    """Starts the bot (global admin only)."""
    if is_global_admin():
        start_bot()
        return redirect(url_for("admin_dashboard"))
    return redirect(url_for("login"))

@app.route("/stop_bot")
def stop():
    """Stops the bot (global admin only)."""
    if is_global_admin():
        stop_bot()
        return redirect(url_for("admin_dashboard"))
    return redirect(url_for("login"))

@app.route("/giveaways/<int:guild_id>")
def view_giveaways(guild_id):
    """Displays the giveaways for the specified guild."""
    if is_server_admin(guild_id):
        connection = get_db_connection()
        cursor = connection.cursor(dictionary=True)
        cursor.execute("SELECT * FROM giveaway_data WHERE guild_id = %s", (guild_id,))
        giveaways = cursor.fetchall()
        cursor.close()
        connection.close()
        return render_template("giveaways.html", giveaways=giveaways, guild_id=guild_id)
    return redirect(url_for("login"))

@app.route("/user_dashboard/<int:guild_id>")
def user_dashboard(guild_id):
    """Displays the user dashboard for the selected guild."""
    if "discord_user" in session:
        user_id = session["discord_user"]["id"]
        connection = get_db_connection()
        cursor = connection.cursor(dictionary=True)
        cursor.execute("SELECT * FROM user_data WHERE user_id = %s AND guild_id = %s", (user_id, guild_id))
        user_data = cursor.fetchone()
        cursor.close()
        connection.close()

        if user_data:
            return render_template("user_dashboard.html", user_data=user_data)
        else:
            return "No data found", 404
    return redirect(url_for("login"))

if __name__ == "__main__":
    app.run(host="0.0.0.0", port=5000, debug=True)