"""
Internationalization module for the Lichess Telegram Bot
English language only
"""

from typing import Optional

# Translation dictionary (English only)
TRANSLATIONS = {
    'en': {
        # Start command
        'start_message': (
            "The bot tracks one or more players on Lichess.\n"
            "It shows ratings, daily, yesterday and weekly activity.\n"
            "When specifying a user_token (with puzzle read permission), you can also get puzzle data.\n"
            "The bot supports automatic checks at specified intervals and sends a report if there was activity during that time.\n\n"
            "Example for a week:\n"
            "🧩 Puzzles: 114 (✅ 81 - ❌ 33)\n\n"
            "🔥 Blitz — 5 games • 🔴 -10\n"
            "Rating: 2245\n"
            "✅ Wins: 1\n"
            "❌ Losses: 3\n"
            "🤝 Draws: 1\n\n"
            "🐇 Rapid — 19 games • 🟢 +20\n"
            "Rating: 2248\n"
            "✅ Wins: 8\n"
            "❌ Losses: 4\n"
            "🤝 Draws: 7\n\n"
            "📋 Available commands:\n"
            "/addgamer - Add a Lichess player to track (username only)\n"
            "/addtoken - Add a player with a token to get puzzle data\n"
            "/getgamers - Select active player (for which /today and other commands will work)\n"
            "/delgamer - Remove a player from the tracked list\n"
            "/today - Statistics for today\n"
            "/yesterday - Statistics for yesterday\n"
            "/week - Statistics for the week\n"
            "/lastYear_or_1000games - Statistics for the last year or last 1000 rated games (whichever comes first)\n"
            "/setperiod - Set up periodic notifications for the active player\n"
            "(active player changes in the /getgamers menu)\n"
            "/support - Contact the developer for support and feedback"
        ),
        
        # Add gamer commands
        'addgamer_prompt': "👤 Enter the Lichess username of the player to track:",
        'addtoken_prompt': (
            "🔑 Enter the Lichess API token to get puzzle data.\n"
            "The token is created in profile settings — give it only puzzle:read permission.\n"
            "After that, the player corresponding to this token will be added."
        ),
        'token_added': "✅ Token added for player {username}!",
        'gamer_added_with_token': "✅ Player {username} added with token!",
        'gamer_added': "✅ Player {username} successfully added!\n\nTo add another player, use /addgamer",
        'invalid_token': "❌ Invalid token. Please try again.",
        'token_username_error': "❌ Failed to get username from token. Please try again.",
        'empty_username': "❌ Username cannot be empty. Please try again.",
        'user_not_found': "❌ Player {username} not found on Lichess. Check the spelling of the name.",
        
        # Get gamers
        'no_gamers': "📭 No players in database. Use /addgamer to add.",
        'loading_ratings': "🔄 Loading player ratings...",
        'select_active_gamer': "👥 <b>Select active player:</b>\n\n",
        'active_gamer_set': "✅ Active player: {username}",
        'gamer_not_found': "❌ Player not found",
        
        # Delete gamer
        'no_gamers_to_delete': "📭 You have no tracked players.",
        'loading_gamers': "🔄 Loading player list...",
        'select_gamer_to_delete': "🗑️ <b>Select player to delete:</b>\n\n",
        'gamer_deleted': "✅ Player <b>{username}</b> removed from tracked list.",
        'active_gamer_deleted': "✅ Player <b>{username}</b> removed from tracked list.\n\n⚠️ You deleted the active player. Use the /getgamers command to select a player for which the /today, /yesterday, /week commands will work.",
        'last_gamer_deleted': "✅ Player <b>{username}</b> removed from tracked list.\n\n⚠️ You deleted the last player. Use the /addgamer command to add a new tracked player.",
        'delete_failed': "❌ Failed to delete player",
        
        # Stats commands
        'no_active_gamer': "❌ No active player. Use /getgamers to select.",
        'unknown_period': "❌ Unknown period",
        'no_data': "📭 No data",
        'stats_title': "📊 Statistics {username} • {date_range}\n\n",
        'puzzles_section': "🧩 Puzzles: {total} (✅ {solved} - ❌ {unsolved})\n\n",
        'games_section': "{emoji} {game_type} — {games_count} games • {rating_change}\nRating: {rating}\n✅ Wins: {wins}\n❌ Losses: {losses}\n🤝 Draws: {draws}\n\n",
        
        # Set period
        'select_gamer_for_period': "⏱️ <b>Select player to set notification period:</b>\n\n",
        'select_period': "⏱️ Select period for player {username}:\n📱 Notifications will be sent to personal messages",
        'notifications_disabled': "✅ Notifications disabled for {username}",
        'period_set': "✅ Period {period} minutes set for {username}\n📱 Notifications will be sent to personal messages",
        'disable_notifications': "❌ Disable notifications",
        'period_minutes': "⏰ {period} minutes",
        
        # Period notification
        'period_1_minute': "for 1 minute",
        'period_2_3_4_minutes': "for {period} minutes",
        'period_minutes_text': "for {period} minutes",
        'period_notification_title': "📊 Statistics {username} • {period_text}\n\n",
        'period_puzzles_section': "🧩 Puzzles: {total} (✅ {solved} - ❌ {failed})\n\n",
        'period_games_section': "{emoji} {game_type} — {games_count} games • {rating_change}\nRating: {rating}\n✅ Wins: {wins}\n❌ Losses: {losses}\n🤝 Draws: {draws}\n\n",
        'no_activity': "📭 No activity for this period",
        
        # Last year or 1000 games
        'last_year_1000_processing': "⏳ Processing request... This may take a while as requests are very slow.",
        'last_year_1000_player_processing': "🔄 Requesting data for player <b>{username}</b>...",
        
        # Stats commands (today/yesterday/week)
        'stats_processing': "⏳ Processing request...",
        'stats_player_processing': "🔄 Requesting data for player <b>{username}</b>...",
        'stats_all_done': "✅ That's all",
        
        # Support
        'support_message': (
            "💬 <b>Support & Feedback</b>\n\n"
            "You can write to the service developer directly and report a problem, suggest new features, or ask a question.\n\n"
            "I will be happy to review every message and respond to it.\n\n"
            "The developer accepts messages in <b>English</b> and <b>Russian</b> languages.\n\n"
            "📧 Contact: <a href=\"https://t.me/vrubelr\">@vrubelr</a>\n\n"
            "📦 Bot version: <b>{version}</b>"
        ),
        
        # Common
        'period_minutes_suffix': "m",
    }
}


def get_user_language(update) -> str:
    """
    Always return English language.
    """
    return 'en'


def t(key: str, lang: str = 'en', **kwargs) -> str:
    """
    Translate a key (always English).
    
    Args:
        key: Translation key
        lang: Language code (ignored, always uses English)
        **kwargs: Format arguments for the translation string
    
    Returns:
        Translated string with formatted arguments
    """
    translation = TRANSLATIONS['en'].get(key, key)
    
    # Format the string if kwargs provided
    if kwargs:
        try:
            return translation.format(**kwargs)
        except KeyError:
            # If formatting fails, return the translation as-is
            return translation
    
    return translation


def get_lang_from_update(update) -> str:
    """
    Always return English.
    """
    return 'en'