import re
import random
from telegram import InlineKeyboardButton, InlineKeyboardMarkup
from telegram.error import TelegramError
import logging
from typing import Dict, Any, Optional, Tuple

logging.basicConfig(
    format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
    level=logging.INFO,
    handlers=[
        logging.FileHandler("bot.log", encoding='utf-8'),
        logging.StreamHandler()
    ]
)
logger = logging.getLogger(__name__)

def escape_markdown(text: str) -> str:
    if not text:
        return ""
    # إضافة دعم للهروب من المزيد من الأحرف الخاصة في MarkdownV2
    escape_chars = r'_*[]()~`>#+=|{.!-}'
    return ''.join(f'\\{char}' if char in escape_chars else char for char in str(text))

def generate_positive_message() -> str:
    messages = [
        "🚗 يلا نلقى سيارة أحلامك! 😍",
        "💥 جاهزة لأحلى صفقة بالعراق! 🌟",
        "🔥 بيع وشراء السيارات صار متعة! 🚘",
        "😎 مع CarBot، كل شي أسهل! 💨"
    ]
    return random.choice(messages)

def format_ad(ad: Dict[str, Any]) -> str:
    if not ad:
        return escape_markdown("❌ لا توجد بيانات!")
    reactions = ad.get('reactions', '')
    photos = ad.get('photos', [])
    photo_count = len(photos) if photos else 0
    fields = [
        f"*السيارة*: {escape_markdown(ad.get('car_name_ar', ''))} \\({escape_markdown(ad.get('car_name_en', ''))}\\)",
        f"*السعر*: {escape_markdown(ad.get('price', ''))}",
        f"*الموديل*: {escape_markdown(ad.get('model', ''))}",
        f"*المحرك*: {escape_markdown(ad.get('engine_specs', ''))}",
        f"*عداد الأميال*: {escape_markdown(ad.get('mileage', ''))}",
        f"*الوارد*: {escape_markdown(ad.get('origin', ''))}",
        f"*رقم السيارة*: {escape_markdown(ad.get('plate', ''))}",
        f"*الحوادث*: {escape_markdown(ad.get('accidents', ''))}",
        f"*المواصفات*: {escape_markdown(ad.get('specs', ''))}",
        f"*الملاحظات*: {escape_markdown(ad.get('notes', 'غير محدد'))}",
        f"*الموقع*: {escape_markdown(ad.get('location', ''))}",
        f"*رقم الهاتف*: {escape_markdown(ad.get('phone', ''))}",
        f"*عدد الصور*: {photo_count}",
        f"{reactions}"
    ]
    return "\n".join(fields)

def validate_phone(phone: str) -> Tuple[Optional[str], Optional[str]]:
    if not phone:
        logger.warning("Empty phone number provided")
        return None, "❌ أدخلي رقم هاتف صحيح (مثال: +9647712345678)"
    try:
        arabic_to_latin = str.maketrans('٠١٢٣٤٥٦٧٨٩', '0123456789')
        phone = phone.translate(arabic_to_latin)
        phone = re.sub(r'[\s\-]', '', phone)
        # تحقق إضافي للتأكد إن الرقم يبدأ بـ +964 أو 0
        if not (phone.startswith('+964') or phone.startswith('0')):
            return None, "❌ الرقم لازم يبدأ بـ +964 أو 0! جربي مرة ثانية"
        pattern = r'^(\+964|0)(77[0-7]|78[0-9]|79[0-9]|75[0-1][0-9])[0-9]{7}$'
        if re.match(pattern, phone):
            if not phone.startswith('+964'):
                phone = '+964' + phone.lstrip('0')
            return phone, None
        logger.warning(f"Invalid phone number format: {phone}")
        return None, "❌ رقم غير صحيح! جربي مثال: +9647712345678"
    except Exception as e:
        logger.error(f"Error validating phone number: {str(e)}")
        return None, "❌ خطأ بالتحقق من الرقم! جربي مرة ثانية"

async def send_admin_notification(bot, admin_id: str, message: str, ad_id: Optional[int] = None):
    if not admin_id:
        logger.error("Admin chat ID not set")
        return
    try:
        keyboard = []
        if ad_id:
            keyboard.append([
                InlineKeyboardButton("✅ الموافقة", callback_data=f"admin_approve_{ad_id}"),
                InlineKeyboardButton("❌ الرفض", callback_data=f"admin_reject_{ad_id}"),
                InlineKeyboardButton("✏️ تعديل", callback_data=f"admin_edit_ad_{ad_id}")
            ])
        await bot.send_message(
            chat_id=admin_id,
            text=escape_markdown(message),
            reply_markup=InlineKeyboardMarkup(keyboard),
            parse_mode='MarkdownV2'
        )
        logger.info(f"Admin notification sent: {message}")
    except TelegramError as e:
        logger.error(f"Failed to send admin notification: {str(e)}")

async def post_to_channel(context, channel_id: str, ad_text: str, photo: Optional[str] = None) -> Optional[int]:
    try:
        if photo:
            message = await context.bot.send_photo(
                chat_id=channel_id,
                photo=photo,
                caption=ad_text,
                parse_mode='MarkdownV2'
            )
        else:
            message = await context.bot.send_message(
                chat_id=channel_id,
                text=ad_text,
                parse_mode='MarkdownV2'
            )
        logger.info(f"Posted to channel {channel_id}: {message.message_id}")
        return message.message_id
    except TelegramError as e:
        logger.error(f"Failed to post to channel {channel_id}: {str(e)}")
        return None

async def delete_channel_post(context):
    from database import Database
    try:
        job_data = context.job.data
        await context.bot.delete_message(
            chat_id=job_data["channel_id"],
            message_id=job_data["message_id"]
        )
        db = Database()
        db.update_ad_status(job_data["ad_id"], "expired")
        logger.info(f"Deleted channel post {job_data['message_id']} for ad {job_data['ad_id']}")
    except TelegramError as e:
        logger.error(f"Failed to delete channel post: {str(e)}")

def generate_reactions(ad: Dict[str, Any]) -> str:
    reactions = ['👍', '❤️', '⭐', '🔥']
    try:
        price = float(re.sub(r'[^\d.]', '', ad.get('price', '0')))
        num_reactions = random.randint(5, min(15, int(price / 1000)))
        selected_reactions = random.choices(reactions, k=num_reactions)
        reaction_counts = {r: selected_reactions.count(r) for r in set(selected_reactions)}
        return ''.join([f"{r}{count} " for r, count in reaction_counts.items()])
    except Exception as e:
        logger.error(f"Error generating reactions: {str(e)}")
        return ""