import os
import sys
sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))

import discord
from discord.ext import commands
from discord import app_commands
import re
import html

from botdiscord.config import get_discord_token, load_config, get_languages
from botdiscord.database import init_db, get_active_languages, get_bot_languages, save_message
from botdiscord.ui import PersistentTranslationView, ConfigView
from botdiscord.translate import get_reverse_mapping, load_lang_mappings

load_config()

intents = discord.Intents.default()
intents.message_content = True
bot = commands.Bot(command_prefix="!", intents=intents)

@bot.event
async def on_ready():
    init_db()
    load_lang_mappings("discord")
    
    # Registramos la vista persistente GLOBALMENTE
    # Esto asegura que cualquier botón con el custom_id adecuado sea escuchado
    bot.add_view(PersistentTranslationView())

    print(f"Bot Discord conectado como {bot.user}")
    try:
        synced = await bot.tree.sync()
        print(f"Sincronizados {len(synced)} comandos.")
    except Exception as e:
        print(f"Error sync: {e}")

def get_active_langs_for_guild(guild_id):
    from botdiscord.translate import get_reverse_mapping
    active = get_active_languages(guild_id)
    if not active:
        active = get_bot_languages("discord")
    if not active:
        active = [lang["code"] for lang in get_languages()]
    
    reverse_mapping = get_reverse_mapping("discord")
    # Devolvemos códigos para filtrar la vista persistente
    return active

@bot.event
async def on_message(message):
    if message.author.bot: return

    text_content = message.content.strip()
    if not text_content and not message.attachments: return
    
    # Filtros de stickers/emojis/etc
    if message.stickers or text_content.startswith('https://tenor.com/') or \
       re.fullmatch(r'<(a?):[a-zA-Z0-9_]+:[0-9]+>', text_content):
        return
    
    if text_content and len(text_content) < 2: return

    active_codes = get_active_langs_for_guild(message.guild.id)
    if not active_codes: return

    # Escapar y procesar menciones
    text_escaped = html.escape(message.content)
    mention_pattern = re.compile(r'&lt;@!?(\d+)&gt;|&lt;@&(\d+)&gt;|&lt;#(\d+)&gt;')
    mentions_map = {}
    
    def replace_mention(match):
        placeholder = f"<m{len(mentions_map)} />"
        mentions_map[placeholder] = html.unescape(match.group(0))
        return placeholder
    
    text_to_translate = mention_pattern.sub(replace_mention, text_escaped)
    save_message(message.id, message.guild.id, message.author.id, text_to_translate, mentions_map, 'discord')
    
    # Creamos una vista filtrada basada en la persistente para mostrar solo los botones activos
    # Pero los botones mantienen sus custom_ids globales
    from botdiscord.ui import TranslationButton
    view = discord.ui.View(timeout=None)
    
    # Cargamos mapeos para etiquetas de botones
    from botdiscord.translate import get_name_to_code, get_flag_mapping
    name_to_code = get_name_to_code("discord")
    flag_mapping = get_flag_mapping("discord")
    code_to_name = {v: k for k, v in name_to_code.items()}

    for code in active_codes:
        name = code_to_name.get(code, code)
        flag = flag_mapping.get(code, "")
        view.add_item(TranslationButton(name, code, flag))

    try:
        await message.reply("¿Traducir este mensaje?", view=view, mention_author=False)
    except Exception as e:
        print(f"Error enviando reply: {e}")

@bot.tree.command(name="configurar", description="Configura los idiomas de traducción")
@app_commands.checks.has_permissions(administrator=True)
async def configurar(interaction: discord.Interaction):
    view = ConfigView(interaction.guild_id, "discord")
    await interaction.response.send_message("Selecciona idiomas habilitados:", view=view, ephemeral=True)

def run_discord_bot():
    token = get_discord_token()
    bot.run(token)

if __name__ == "__main__":
    run_discord_bot()