import discord
from botdiscord.translate import get_lang_mapping, get_flag_mapping, get_name_to_code, translate_text
from botdiscord.database import get_message, save_translation, get_cached_translation

class TranslationView(discord.ui.View):
    def __init__(self, text: str, languages: list, original_message, attachments=None, mentions_map=None):
        super().__init__(timeout=None)
        self.text = text
        self.original_message = original_message
        self.attachments = attachments or []
        self.mentions_map = mentions_map or {}
        
        flag_mapping = get_flag_mapping()
        name_to_code = get_name_to_code()
        
        for lang in languages:
            lang_code = name_to_code.get(lang)
            flag = flag_mapping.get(lang_code, "") if lang_code else ""
            self.add_item(TranslationButton(lang, lang_code, flag, text, original_message, self.attachments, self.mentions_map))

class TranslationButton(discord.ui.Button):
    def __init__(self, lang_name: str, lang_code: str, flag: str, text: str, original_message, attachments=None, mentions_map=None):
        # Ahora el label es solo la bandera, si no hay bandera mostramos el nombre
        label = flag if flag else lang_name
        super().__init__(label=label, style=discord.ButtonStyle.primary)
        self.lang_name = lang_name
        self.lang_code = lang_code
        self.flag = flag
        self.text = text
        self.original_message = original_message
        self.attachments = attachments or []
        self.mentions_map = mentions_map or {}

    async def callback(self, interaction: discord.Interaction):
        # Intentamos recuperar el mensaje de la base de datos si falta contexto
        msg_context = None
        if not self.text or not self.mentions_map:
            # Recuperamos de la BD usando el ID del mensaje al que se responde
            # En Discord, si es un reply, el original_message es el mensaje original
            msg_id = self.original_message.id
            db_msg = get_message(msg_id)
            if db_msg:
                self.text = db_msg['content']
                self.mentions_map = db_msg['mentions_map']
        
        # Verificamos si ya tenemos la traducción en caché
        cached = get_cached_translation(self.original_message.id, self.lang_code)
        if cached:
            translated = cached
        else:
            # Traducimos el texto
            translated = await translate_text(self.text, self.lang_code)
            # Guardamos en caché
            save_translation(self.original_message.id, self.lang_code, translated)
        
        # Desescapamos el HTML para recuperar caracteres especiales
        import html
        import re
        translated = html.unescape(translated)
        
        # Reemplazamos menciones si existen
        for placeholder, mention in self.mentions_map.items():
            # Extraer el número del tag, ej: m0 de <m0 />
            match = re.search(r'm\d+', placeholder)
            if not match: continue
            tag_num = match.group()
            
            # 1. Reemplazamos la etiqueta de apertura (o autocontenida) por la mención
            # Patrón: < \s* mX \s* /? \s* >
            open_pattern = re.compile(rf'<\s*{tag_num}\s*/?\s*>')
            translated = open_pattern.sub(mention, translated)
            
            # 2. Eliminamos cualquier etiqueta de cierre que el traductor haya "inventado"
            # Patrón: < \s* / \s* mX \s* >
            close_pattern = re.compile(rf'<\s*/\s*{tag_num}\s*>')
            translated = close_pattern.sub('', translated)
        
        # En lugar de enviar un mensaje nuevo, EDITAMOS el mensaje actual (el de los botones)
        if self.attachments:
            # Si hay archivos, los adjuntamos de nuevo al editar
            files = []
            for attachment in self.attachments:
                file = await attachment.to_file()
                files.append(file)
            
            await interaction.response.edit_message(content=translated, attachments=files, view=self.view)
        else:
            # Editamos el texto "¿Traducir este mensaje?" por la traducción directamente
            await interaction.response.edit_message(content=translated, view=self.view)

class ConfigSelect(discord.ui.Select):
    def __init__(self, guild_id: int, bot_type: str = "discord"):
        from botdiscord.database import get_active_languages
        lang_mapping = get_lang_mapping(bot_type)
        flag_mapping = get_flag_mapping(bot_type)
        active = get_active_languages(guild_id)
        options = []
        for name, code in lang_mapping.items():
            flag = flag_mapping.get(code, "")
            if flag:
                options.append(discord.SelectOption(label=flag, value=name, default=(code in active)))
            else:
                options.append(discord.SelectOption(label=name, value=name, default=(code in active)))
        super().__init__(
            placeholder="Selecciona los idiomas activos...",
            min_values=0,
            max_values=len(options),
            options=options
        )

    async def callback(self, interaction: discord.Interaction):
        from botdiscord.database import set_active_languages
        from botdiscord.translate import get_lang_mapping, get_flag_mapping
        
        guild_id = interaction.guild_id
        lang_mapping = get_lang_mapping("discord")
        flag_mapping = get_flag_mapping("discord")
        selected_codes = [lang_mapping[val] for val in self.values]
        
        set_active_languages(guild_id, selected_codes)
        
        selected_flags = []
        for val in self.values:
            code = lang_mapping.get(val)
            flag = flag_mapping.get(code, "") if code else ""
            selected_flags.append(flag if flag else val)
        
        await interaction.response.send_message(
            f"Configuración actualizada: {', '.join(selected_flags)}",
            ephemeral=True
        )

class ConfigView(discord.ui.View):
    def __init__(self, guild_id: int, bot_type: str = "discord"):
        super().__init__()
        self.add_item(ConfigSelect(guild_id, bot_type))