import discord
from discord.ext import commands
from discord import app_commands
from datetime import datetime

CYBER_BLUE = discord.Color.from_rgb(52, 152, 219)
CYBER_RED = discord.Color.from_rgb(231, 76, 60)
CYBER_ORANGE = discord.Color.from_rgb(230, 126, 34)
CYBER_GREEN = discord.Color.from_rgb(46, 204, 113)

class Logs(commands.Cog):
    def __init__(self, bot):
        self.bot = bot

    async def _send_log(self, guild: discord.Guild, embed: discord.Embed):
        """Yardımcı fonksiyon: Belirtilen log kanalına embed gönderir"""
        log_channel_id = await Database.log_kanali_getir(guild.id)
        if not log_channel_id:
            return
        channel = guild.get_channel(log_channel_id)
        if channel:
            try:
                await channel.send(embed=embed)
            except:
                pass

    @commands.hybrid_command(name="log-kanal-ayarla", description="Sunucu olaylarının kaydedileceği log kanalını belirler.")
    @commands.has_permissions(administrator=True)
    @app_commands.describe(kanal="Logların gönderileceği metin kanalı (Boş bırakılırsa log sistemi kapatılır)")
    async def log_kanal_ayarla(self, ctx: commands.Context, kanal: discord.TextChannel = None):
        if ctx.interaction:
            await ctx.defer()
        
        kanal_id = kanal.id if kanal else 0
        try:
            await Database.log_kanali_ayarla(ctx.guild.id, kanal_id)
            if kanal:
                await ctx.send(f"✅ Olay log kanalı {kanal.mention} olarak ayarlandı.")
            else:
                await ctx.send("✅ Olay loglama sistemi devre dışı bırakıldı.")
        except Exception as e:
            await ctx.send(f"❌ Log kanalı ayarlanırken bir veritabanı hatası oluştu: {e}", ephemeral=True)

    # 1. --- SİLİNEN MESAJ LOGLARI ---
    @commands.Cog.listener()
    async def on_message_delete(self, message: discord.Message):
        if message.author.bot or not message.guild:
            return
        if not await Database.modul_aktif_mi(message.guild.id, "Logs"):
            return

        embed = discord.Embed(
            title="🗑️ Mesaj Silindi",
            description=f"**Kanal:** {message.channel.mention}\n"
                        f"**Yazar:** {message.author.mention} (`{message.author.id}`)",
            color=CYBER_RED,
            timestamp=datetime.now()
        )
        if message.content:
            embed.add_field(name="Mesaj İçeriği", value=message.content[:1024], inline=False)
        else:
            embed.add_field(name="Mesaj İçeriği", value="*İçerik boş veya sadece görsel/ek içeriyordu.*", inline=False)
            
        if message.attachments:
            image_url = None
            for a in message.attachments:
                is_image = (a.content_type and a.content_type.startswith("image")) or a.filename.lower().endswith(('.png', '.jpg', '.jpeg', '.gif', '.webp'))
                if is_image:
                    image_url = a.url
                    break
            if image_url:
                embed.set_image(url=image_url)
            
            attachments_str = ", ".join([f"[{a.filename}]({a.url})" for a in message.attachments])
            embed.add_field(name="Ekler (Dosyalar)", value=attachments_str[:1024], inline=False)

        await self._send_log(message.guild, embed)

    # 2. --- DÜZENLENEN MESAJ LOGLARI ---
    @commands.Cog.listener()
    async def on_message_edit(self, before: discord.Message, after: discord.Message):
        if after.author.bot or not after.guild:
            return
        if not await Database.modul_aktif_mi(after.guild.id, "Logs"):
            return
        if before.content == after.content:
            return

        embed = discord.Embed(
            title="📝 Mesaj Düzenlendi",
            description=f"**Kanal:** {after.channel.mention}\n"
                        f"**Yazar:** {after.author.mention} (`{after.author.id}`)\n"
                        f"**Mesaja Git:** [Tıkla]({after.jump_url})",
            color=CYBER_ORANGE,
            timestamp=datetime.now()
        )
        embed.add_field(name="Eski İçerik", value=(before.content or "*Boş*")[:1024], inline=False)
        embed.add_field(name="Yeni İçerik", value=(after.content or "*Boş*")[:1024], inline=False)

        await self._send_log(after.guild, embed)

    # 3. --- SES KANALI LOGLARI ---
    @commands.Cog.listener()
    async def on_voice_state_update(self, member: discord.Member, before: discord.VoiceState, after: discord.VoiceState):
        if member.bot or not member.guild:
            return
        if not await Database.modul_aktif_mi(member.guild.id, "Logs"):
            return

        embed = discord.Embed(
            description=f"**Kullanıcı:** {member.mention} (`{member.id}`)",
            timestamp=datetime.now()
        )
        embed.set_author(name=member.display_name, icon_url=member.display_avatar.url)

        if before.channel is None and after.channel is not None:
            embed.title = "🔊 Ses Kanalına Katıldı"
            embed.description += f"\n**Katıldığı Kanal:** {after.channel.name} (`{after.channel.id}`)"
            embed.color = CYBER_GREEN
            await self._send_log(member.guild, embed)

        elif before.channel is not None and after.channel is None:
            embed.title = "🔇 Ses Kanalından Ayrıldı"
            embed.description += f"\n**Ayrıldığı Kanal:** {before.channel.name} (`{before.channel.id}`)"
            embed.color = CYBER_RED
            await self._send_log(member.guild, embed)

        elif before.channel is not None and after.channel is not None and before.channel.id != after.channel.id:
            embed.title = "🔄 Ses Kanalı Değiştirdi"
            embed.description += f"\n**Eski Kanal:** {before.channel.name}\n**Yeni Kanal:** {after.channel.name}"
            embed.color = CYBER_BLUE
            await self._send_log(member.guild, embed)

    # 4. --- ÜYE GÜNCELLEME / NICK / ROL LOGLARI ---
    @commands.Cog.listener()
    async def on_member_update(self, before: discord.Member, after: discord.Member):
        if before.bot or not after.guild:
            return
        if not await Database.modul_aktif_mi(after.guild.id, "Logs"):
            return

        embed = discord.Embed(
            description=f"**Kullanıcı:** {after.mention} (`{after.id}`)",
            timestamp=datetime.now()
        )
        embed.set_author(name=after.display_name, icon_url=after.display_avatar.url)

        if before.roles != after.roles:
            added_roles = [r for r in after.roles if r not in before.roles]
            removed_roles = [r for r in before.roles if r not in after.roles]
            
            if added_roles or removed_roles:
                embed.title = "🛡️ Rolleri Güncellendi"
                embed.color = CYBER_BLUE
                if added_roles:
                    embed.add_field(name="Verilen Roller", value=", ".join([r.mention for r in added_roles]), inline=False)
                if removed_roles:
                    embed.add_field(name="Alınan Roller", value=", ".join([r.mention for r in removed_roles]), inline=False)
                await self._send_log(after.guild, embed)
                return

        if before.nick != after.nick:
            embed.title = "👤 Sunucu Takma Adı Değiştirildi"
            embed.color = CYBER_ORANGE
            embed.add_field(name="Eski Ad", value=before.nick or before.name, inline=True)
            embed.add_field(name="Yeni Ad", value=after.nick or after.name, inline=True)
            await self._send_log(after.guild, embed)

    # 5. --- KANAL OLUŞTURMA / SİLME LOGLARI ---
    @commands.Cog.listener()
    async def on_guild_channel_create(self, channel: discord.abc.GuildChannel):
        if not await Database.modul_aktif_mi(channel.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🆕 Yeni Kanal Oluşturuldu",
            description=f"**Kanal Adı:** {channel.name}\n**Tür:** `{str(channel.type)}`\n**ID:** `{channel.id}`",
            color=CYBER_GREEN,
            timestamp=datetime.now()
        )
        await self._send_log(channel.guild, embed)

    @commands.Cog.listener()
    async def on_guild_channel_delete(self, channel: discord.abc.GuildChannel):
        if not await Database.modul_aktif_mi(channel.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🗑️ Kanal Silindi",
            description=f"**Kanal Adı:** {channel.name}\n**Tür:** `{str(channel.type)}`\n**ID:** `{channel.id}`",
            color=CYBER_RED,
            timestamp=datetime.now()
        )
        await self._send_log(channel.guild, embed)

    # 6. --- ROL OLUŞTURMA / SİLME LOGLARI ---
    @commands.Cog.listener()
    async def on_guild_role_create(self, role: discord.Role):
        if not await Database.modul_aktif_mi(role.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🆕 Yeni Rol Oluşturuldu",
            description=f"**Rol Adı:** {role.mention}\n**ID:** `{role.id}`",
            color=CYBER_GREEN,
            timestamp=datetime.now()
        )
        await self._send_log(role.guild, embed)

    @commands.Cog.listener()
    async def on_guild_role_delete(self, role: discord.Role):
        if not await Database.modul_aktif_mi(role.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🗑️ Rol Silindi",
            description=f"**Rol Adı:** {role.name}\n**ID:** `{role.id}`",
            color=CYBER_RED,
            timestamp=datetime.now()
        )
        await self._send_log(role.guild, embed)

    # 7. --- YASAKLAMA / YASAK KALDIRMA LOGLARI ---
    @commands.Cog.listener()
    async def on_member_ban(self, guild: discord.Guild, user: discord.User):
        if not await Database.modul_aktif_mi(guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🔨 Üye Yasaklandı (Ban)",
            description=f"**Kullanıcı:** {user.mention} (`{user.id}`)\n**Hesap Açılış Tarihi:** {user.created_at.strftime('%d.%m.%Y')}",
            color=CYBER_RED,
            timestamp=datetime.now()
        )
        embed.set_thumbnail(url=user.display_avatar.url)
        await self._send_log(guild, embed)

    @commands.Cog.listener()
    async def on_member_unban(self, guild: discord.Guild, user: discord.User):
        if not await Database.modul_aktif_mi(guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🔓 Üye Yasağı Kaldırıldı (Unban)",
            description=f"**Kullanıcı:** {user.mention} (`{user.id}`)",
            color=CYBER_GREEN,
            timestamp=datetime.now()
        )
        embed.set_thumbnail(url=user.display_avatar.url)
        await self._send_log(guild, embed)

    # 8. --- ÜYE KATILIM & AYRILMA LOGLARI ---
    @commands.Cog.listener()
    async def on_member_join(self, member: discord.Member):
        if not await Database.modul_aktif_mi(member.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="📥 Üye Sunucuya Katıldı",
            description=f"**Kullanıcı:** {member.mention} (`{member.id}`)\n"
                        f"**Hesap Açılış Tarihi:** {member.created_at.strftime('%d.%m.%Y %H:%M:%S')}\n"
                        f"**Toplam Üye:** `{member.guild.member_count}`",
            color=CYBER_GREEN,
            timestamp=datetime.now()
        )
        embed.set_thumbnail(url=member.display_avatar.url)
        await self._send_log(member.guild, embed)

    @commands.Cog.listener()
    async def on_member_remove(self, member: discord.Member):
        if not await Database.modul_aktif_mi(member.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="📤 Üye Sunucudan Ayrıldı",
            description=f"**Kullanıcı:** {member.mention} (`{member.id}`)\n"
                        f"**Toplam Üye:** `{member.guild.member_count}`",
            color=CYBER_RED,
            timestamp=datetime.now()
        )
        embed.set_thumbnail(url=member.display_avatar.url)
        await self._send_log(member.guild, embed)

    # 9. --- DAVET OLUŞTURMA & SİLME LOGLARI ---
    @commands.Cog.listener()
    async def on_invite_create(self, invite: discord.Invite):
        if not await Database.modul_aktif_mi(invite.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🎫 Davet Bağlantısı Oluşturuldu",
            description=f"**Oluşturan:** {invite.inviter.mention if invite.inviter else 'Bilinmiyor'} (`{invite.inviter.id if invite.inviter else ''}`)\n"
                        f"**Kod:** `{invite.code}`\n"
                        f"**Kanal:** {invite.channel.mention if invite.channel else 'Belirsiz'}\n"
                        f"**Maksimum Kullanım:** `{invite.max_uses if invite.max_uses else 'Sınırsız'}`\n"
                        f"**Süre:** `{invite.max_age if invite.max_age else 'Süresiz'}` saniye",
            color=CYBER_GREEN,
            timestamp=datetime.now()
        )
        await self._send_log(invite.guild, embed)

    @commands.Cog.listener()
    async def on_invite_delete(self, invite: discord.Invite):
        if not await Database.modul_aktif_mi(invite.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🗑️ Davet Bağlantısı Silindi",
            description=f"**Kod:** `{invite.code}`\n**Kanal:** {invite.channel.mention if invite.channel else 'Belirsiz'}",
            color=CYBER_RED,
            timestamp=datetime.now()
        )
        await self._send_log(invite.guild, embed)

    # 10. --- SUNUCU (GUILD) GÜNCELLEME LOGLARI ---
    @commands.Cog.listener()
    async def on_guild_update(self, before: discord.Guild, after: discord.Guild):
        if not await Database.modul_aktif_mi(after.id, "Logs"):
            return
        embed = discord.Embed(
            title="⚙️ Sunucu Ayarları Güncellendi",
            color=CYBER_ORANGE,
            timestamp=datetime.now()
        )
        
        changes = []
        if before.name != after.name:
            changes.append(f"**Sunucu Adı Değişti:** `{before.name}` ➡️ `{after.name}`")
        if before.afk_channel != after.afk_channel:
            changes.append(f"**AFK Kanalı Değişti:** `{before.afk_channel.name if before.afk_channel else 'Yok'}` ➡️ `{after.afk_channel.name if after.afk_channel else 'Yok'}`")
        if before.verification_level != after.verification_level:
            changes.append(f"**Doğrulama Seviyesi:** `{before.verification_level}` ➡️ `{after.verification_level}`")
        if before.premium_tier != after.premium_tier:
            changes.append(f"**Takviye Seviyesi:** `Seviye {before.premium_tier}` ➡️ `Seviye {after.premium_tier}` (Toplam Takviye: `{after.premium_subscription_count}`)")
            
        if not changes:
            return
            
        embed.description = "\n".join(changes)
        await self._send_log(after, embed)

    # 11. --- ROL GÜNCELLEME LOGLARI ---
    @commands.Cog.listener()
    async def on_guild_role_update(self, before: discord.Role, after: discord.Role):
        if not await Database.modul_aktif_mi(after.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🛡️ Rol Ayarları Güncellendi",
            description=f"**Rol:** {after.mention} (`{after.id}`)",
            color=CYBER_ORANGE,
            timestamp=datetime.now()
        )
        
        changes = []
        if before.name != after.name:
            changes.append(f"**Adı Değişti:** `{before.name}` ➡️ `{after.name}`")
        if before.color != after.color:
            changes.append(f"**Rengi Değişti:** `{before.color}` ➡️ `{after.color}`")
        if before.permissions != after.permissions:
            changes.append(f"**Yetkileri Değiştirildi.** (Farklılıklar tespit edildi)")
            
        if not changes:
            return
            
        embed.description += "\n\n" + "\n".join(changes)
        await self._send_log(after.guild, embed)

    # 12. --- KANAL AYARI GÜNCELLEME LOGLARI ---
    @commands.Cog.listener()
    async def on_guild_channel_update(self, before: discord.abc.GuildChannel, after: discord.abc.GuildChannel):
        if not await Database.modul_aktif_mi(after.guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="⚙️ Kanal Ayarları Güncellendi",
            description=f"**Kanal:** {after.mention if hasattr(after, 'mention') else after.name} (`{after.id}`)",
            color=CYBER_ORANGE,
            timestamp=datetime.now()
        )
        
        changes = []
        if before.name != after.name:
            changes.append(f"**Adı Değişti:** `{before.name}` ➡️ `{after.name}`")
        if hasattr(before, 'topic') and hasattr(after, 'topic') and before.topic != after.topic:
            changes.append(f"**Konusu Değişti:**\n*Eski:* {before.topic or 'Yok'}\n*Yeni:* {after.topic or 'Yok'}")
        if hasattr(before, 'slowmode_delay') and hasattr(after, 'slowmode_delay') and before.slowmode_delay != after.slowmode_delay:
            changes.append(f"**Yavaş Mod Değişti:** `{before.slowmode_delay}s` ➡️ `{after.slowmode_delay}s`")
            
        if not changes:
            return
            
        embed.description += "\n\n" + "\n".join(changes)
        await self._send_log(after.guild, embed)

    # 13. --- EMOJI & STICKER GÜNCELLEME LOGLARI ---
    @commands.Cog.listener()
    async def on_guild_emojis_update(self, guild: discord.Guild, before: list[discord.Emoji], after: list[discord.Emoji]):
        if not await Database.modul_aktif_mi(guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🎨 Emojiler Güncellendi",
            color=CYBER_ORANGE,
            timestamp=datetime.now()
        )
        
        if len(before) < len(after):
            added = [e for e in after if e not in before][0]
            embed.description = f"➕ **Yeni Emoji Eklendi:** {added} (`{added.name}` | ID: `{added.id}`)"
            embed.color = CYBER_GREEN
        elif len(before) > len(after):
            removed = [e for e in before if e not in after][0]
            embed.description = f"➖ **Emoji Silindi:** `{removed.name}` (ID: `{removed.id}`)"
            embed.color = CYBER_RED
        else:
            # Emoji ismi değişmiş olabilir
            for e_before in before:
                for e_after in after:
                    if e_before.id == e_after.id and e_before.name != e_after.name:
                        embed.description = f"✏️ **Emoji Adı Değiştirildi:** `{e_before.name}` ➡️ `{e_after.name}` {e_after}"
                        break
            if not embed.description:
                return
                
        await self._send_log(guild, embed)

    @commands.Cog.listener()
    async def on_guild_stickers_update(self, guild: discord.Guild, before: list[discord.GuildSticker], after: list[discord.GuildSticker]):
        if not await Database.modul_aktif_mi(guild.id, "Logs"):
            return
        embed = discord.Embed(
            title="🖼️ Çıkartmalar (Stickers) Güncellendi",
            color=CYBER_ORANGE,
            timestamp=datetime.now()
        )
        
        if len(before) < len(after):
            added = [s for s in after if s not in before][0]
            embed.description = f"➕ **Yeni Çıkartma Eklendi:** `{added.name}` (ID: `{added.id}`)"
            embed.color = CYBER_GREEN
        elif len(before) > len(after):
            removed = [s for s in before if s not in after][0]
            embed.description = f"➖ **Çıkartma Silindi:** `{removed.name}` (ID: `{removed.id}`)"
            embed.color = CYBER_RED
        else:
            for s_before in before:
                for s_after in after:
                    if s_before.id == s_after.id and s_before.name != s_after.name:
                        embed.description = f"✏️ **Çıkartma Adı Değiştirildi:** `{s_before.name}` ➡️ `{s_after.name}`"
                        break
            if not embed.description:
                return
                
        await self._send_log(guild, embed)

from database import Database
async def setup(bot):
    await bot.add_cog(Logs(bot))