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

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

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

LOG_FILE_PATH = os.path.join("logs", f"{datetime.now().strftime('%Y-%m-%d')}.log")

# Verwende Umgebungsvariablen für die Datenbankverbindung
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_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'

# Speichern der Prozess-ID
bot_process = None

def bot_status():
    """Überprüft, ob der Bot läuft."""
    global bot_process
    if bot_process is None:
        return False
    return bot_process.poll() is None  # None bedeutet, dass der Prozess noch läuft

def start_bot():
    """Startet den Bot."""
    global bot_process
    if not bot_status():
        bot_process = subprocess.Popen(["python", "bot.py"], cwd=os.path.dirname(os.path.abspath(__file__)))
    else:
        print("Bot läuft bereits.")

def stop_bot():
    """Stoppt den Bot."""
    global bot_process
    if bot_process and bot_status():
        bot_process.terminate()
        bot_process.wait()  # Warten, bis der Prozess beendet ist
        bot_process = None
    else:
        print("Bot läuft nicht.")

def get_db_connection():
    """Stellt eine Verbindung zur MySQL-Datenbank her."""
    return mysql.connector.connect(
        host=DB_HOST,
        port=DB_PORT,
        user=DB_USER,
        password=DB_PASS,
        database=DB_NAME
    )

def token_updater(token):
    session['oauth_token'] = token

def make_discord_session(token=None, state=None):
    return OAuth2Session(
        DISCORD_CLIENT_ID,
        token=token or session.get("oauth_token"),
        state=state,
        redirect_uri=DISCORD_REDIRECT_URI,
        scope=["identify", "guilds"],
        auto_refresh_kwargs={
            'client_id': DISCORD_CLIENT_ID,
            'client_secret': DISCORD_CLIENT_SECRET,
        },
        auto_refresh_url=DISCORD_TOKEN_URL,
        token_updater=token_updater
    )



def is_bot_admin():
    """Überprüft, ob der Benutzer globale Admin-Rechte hat."""
    if "discord_user" in session:
        user_info = session["discord_user"]
        user_id = user_info["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()

        return user_data and user_data["global_permission"] >= 8
    return False

def is_server_admin(guild_id):
    """Überprüft, ob der Benutzer Admin-Rechte auf einem bestimmten Server (Guild) hat."""
    if "discord_user" in session:
        user_info = session["discord_user"]
        user_id = user_info["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()

        return user_data and user_data["permission"] >= 8
    return False

@app.route("/")
def landing_page():
    """Landing Page"""
    return render_template("landing.html")

@app.route("/login")
def login():
    """Startet den Discord-OAuth2-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():
    """Verarbeitet den OAuth2-Rückruf von Discord."""
    try:
        # Discord OAuth2-Session initialisieren
        discord = make_discord_session(state=session.get("oauth_state"))
        
        # Token abrufen
        token = discord.fetch_token(
            DISCORD_TOKEN_URL,
            client_secret=DISCORD_CLIENT_SECRET,
            authorization_response=request.url,
        )
        session['oauth_token'] = token
        
        # Abrufen der Benutzerinformationen von Discord
        user_info = discord.get(DISCORD_API_URL).json()
        session['discord_user'] = user_info

        # Debugging: Prüfe, ob Benutzerinformationen erfolgreich abgerufen wurden
        print(f"User info: {user_info}")
        
        # Hole die Gilden (Server), auf denen der Benutzer ist
        guilds_response = discord.get('https://discord.com/api/users/@me/guilds')

        # Debugging: Prüfe den Status der Antwort
        print(f"Guilds response status: {guilds_response.status_code}")

        if guilds_response.status_code != 200:
            flash("Fehler beim Abrufen der Gilden.", "danger")
            return redirect(url_for("landing_page"))

        guilds = guilds_response.json()

        # Debugging: Gib die Gildeninformationen aus
        print(f"Guilds: {guilds}")

        # Verbindung zur Datenbank herstellen
        connection = get_db_connection()
        cursor = connection.cursor()

        # Speichern oder Aktualisieren der Gildeninformationen in der Datenbank
        for guild in guilds:
            guild_id = guild['id']
            guild_name = guild['name']
            guild_icon = guild.get('icon', None)  # Manche Gilden haben kein Icon
            owner_id = guild['owner_id']

            # Prüfen, ob die Gilde bereits existiert
            cursor.execute("SELECT COUNT(*) FROM guilds WHERE guild_id = %s", (guild_id,))
            exists = cursor.fetchone()[0]

            if exists:
                # Gilde aktualisieren
                cursor.execute("""
                    UPDATE guilds
                    SET name = %s, icon = %s, owner_id = %s
                    WHERE guild_id = %s
                """, (guild_name, guild_icon, owner_id, guild_id))
            else:
                # Neue Gilde einfügen
                cursor.execute("""
                    INSERT INTO guilds (guild_id, name, icon, owner_id)
                    VALUES (%s, %s, %s, %s)
                """, (guild_id, guild_name, guild_icon, owner_id))

        connection.commit()
        cursor.close()
        connection.close()

        session['discord_guilds'] = guilds  # Speichere die Gilden in der Session

        # Weiterleitung zur Server-Auswahl
        return redirect(url_for("server_selection"))
    
    except Exception as e:
        # Fehlerbehandlung mit detaillierter Fehlermeldung
        print(f"Error in OAuth2 callback: {e}")
        flash("Ein Fehler ist beim Authentifizierungsprozess aufgetreten.", "danger")
        return redirect(url_for("landing_page"))


@app.route("/server_selection")
def server_selection():
    """Zeigt dem Benutzer eine Liste aller Server an, auf denen er sich befindet und die in der Datenbank vorhanden sind."""
    if "discord_user" in session:
        user_info = session["discord_user"]
        user_id = user_info["id"]

        connection = get_db_connection()
        cursor = connection.cursor(dictionary=True)

        # Abfrage der Gilden, auf denen der Benutzer in der Datenbank Einträge hat
        cursor.execute("""
            SELECT DISTINCT user_data.guild_id, guilds.name, guilds.icon
            FROM user_data
            JOIN guilds ON user_data.guild_id = guilds.guild_id
            WHERE user_data.user_id = %s
        """, (user_id,))
        guilds = cursor.fetchall()

        cursor.close()
        connection.close()

        return render_template("server_selection.html", guilds=guilds)

    return redirect(url_for("login"))


@app.route("/admin_dashboard")
def admin_dashboard():
    """Zeigt das Bot-Admin-Dashboard an (nur für globale Admins)."""
    if is_bot_admin():
        return render_template("admin_dashboard.html", bot_running=bot_status())
    return redirect(url_for("landing_page"))

@app.route("/server_admin_dashboard/<int:guild_id>")
def server_admin_dashboard(guild_id):
    """Zeigt das Server-Admin-Dashboard an (nur für Server-Admins)."""
    if is_server_admin(guild_id):
        return render_template("server_admin_dashboard.html", guild_id=guild_id)
    return redirect(url_for("landing_page"))

@app.route("/user_dashboard/<int:guild_id>")
def user_dashboard(guild_id):
    """Zeigt das User-Dashboard für einen spezifischen Server (guild_id) an."""
    if "discord_user" in session:
        user_info = session["discord_user"]
        user_id = user_info["id"]

        connection = get_db_connection()
        cursor = connection.cursor(dictionary=True)

        # Hole Benutzerinformationen für den ausgewählten Server
        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_info=user_info, user_data=user_data, guild_id=guild_id)
        else:
            return "User data not found", 404

    return redirect(url_for("login"))

@app.route("/logout")
def logout():
    """Meldet den Benutzer ab."""
    session.clear()
    return redirect(url_for("landing_page"))

# Bot Management Routes
@app.route("/start_bot")
def start():
    if is_bot_admin():
        start_bot()
        return redirect(url_for("admin_dashboard"))
    return redirect(url_for("landing_page"))

@app.route("/stop_bot")
def stop():
    if is_bot_admin():
        stop_bot()
        return redirect(url_for("admin_dashboard"))
    return redirect(url_for("landing_page"))

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