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 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 aus Coolify 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'

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

def is_global_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,))
        bot_data = cursor.fetchone()
        cursor.close()
        connection.close()

        if bot_data and bot_data["global_permission"] >= 8:
            return True
    return False

def is_server_admin(guild_id):
    """Überprüft, ob der Benutzer Admin-Rechte auf einem bestimmten Server 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()

        if user_data and user_data["permission"] >= 8:
            return True
    return False

@app.route("/")
def landing_page():
    """Ungeschützte 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."""
    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"],))
    bot_data = cursor.fetchone()
    cursor.close()
    connection.close()

    if bot_data and bot_data["global_permission"] >= 8:
        return redirect(url_for("global_admin_dashboard"))
    else:
        return redirect(url_for("select_guild"))

@app.route("/select_guild")
def select_guild():
    """Lässt den Benutzer den Server auswählen, auf dem er aktiv sein möchte."""
    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 guild_id FROM user_data WHERE user_id = %s", (user_id,))
        guilds = cursor.fetchall()
        cursor.close()
        connection.close()

        if guilds:
            return render_template("select_guild.html", guilds=guilds)
        else:
            return "No server found for this user.", 404
    return redirect(url_for("landing_page"))

@app.route("/set_guild/<int:guild_id>")
def set_guild(guild_id):
    """Setzt den aktuellen Server (guild_id) für den Benutzer."""
    session["guild_id"] = guild_id
    return redirect(url_for("server_dashboard", guild_id=guild_id))

@app.route("/global_admin_dashboard")
def global_admin_dashboard():
    """Globales Admin-Dashboard für globale Administratoren."""
    if is_global_admin():
        user_info = session["discord_user"]
        return render_template("global_admin_dashboard.html", user_info=user_info, bot_running=bot_status())
    return redirect(url_for("landing_page"))

@app.route("/server_dashboard/<int:guild_id>")
def server_dashboard(guild_id):
    """Server-spezifisches Dashboard für den aktuellen Server (guild_id)."""
    if is_server_admin(guild_id):
        user_info = session["discord_user"]
        return render_template("server_dashboard.html", user_info=user_info, guild_id=guild_id, bot_running=bot_status())
    return redirect(url_for("landing_page"))

@app.route("/start_bot")
def start():
    if is_global_admin():
        start_bot()
        return redirect(url_for("global_admin_dashboard"))
    return redirect(url_for("landing_page"))

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

@app.route("/server_admin/giveaways/<int:guild_id>")
def server_admin_giveaways(guild_id):
    """Zeigt eine Liste der Giveaways für einen bestimmten Server an."""
    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("server_admin_giveaways.html", giveaways=giveaways, guild_id=guild_id)
    return redirect(url_for("landing_page"))

@app.route("/users")
def users():
    """Zeigt die Liste der Benutzer an."""
    if is_global_admin():
        connection = get_db_connection()
        cursor = connection.cursor(dictionary=True)
        cursor.execute("SELECT user_id, permission, points, ban FROM user_data")
        users = cursor.fetchall()
        cursor.close()
        connection.close()
        return render_template("users.html", users=users)
    return redirect(url_for("landing_page"))

# Weitere Routen für Server-spezifische Funktionen, Punkteverwaltung, Giveaways etc.

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