import discord
from discord.ext import commands
from discord import app_commands
import sqlite3
import aiohttp
import io
import os
from PIL import Image, ImageDraw, ImageFont
from datetime import datetime, timezone

class Goodbye(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
        self.db_path = os.path.join(os.path.dirname(__file__), "..", "config.db")

    def humanize_time_delta(self, date):
        if date is None: return "date inconnue"
        if date.tzinfo is None: date = date.replace(tzinfo=timezone.utc)

        now = datetime.now(timezone.utc)
        delta = now - date
        total_days = delta.total_seconds() / (3600 * 24)
        rounded_days = round(total_days)

        years = rounded_days // 365
        months = rounded_days // 30
        weeks = rounded_days // 7
        days = rounded_days

        if years > 0: return f"il y a {years} {'an' if years == 1 else 'ans'}"
        elif months > 0: return f"il y a {months} mois"
        elif weeks > 0: return f"il y a {weeks} {'semaine' if weeks == 1 else 'semaines'}"
        elif days > 0: return f"il y a {days} {'jour' if days == 1 else 'jours'}"
        elif delta.seconds // 3600 > 0:
            hours = delta.seconds // 3600
            return f"il y a {hours} {'heure' if hours == 1 else 'heures'}"
        elif (delta.seconds % 3600) // 60 > 0:
            minutes = (delta.seconds % 3600) // 60
            return f"il y a {minutes} {'minute' if minutes == 1 else 'minutes'}"
        else:
            seconds = delta.seconds % 60
            return f"il y a {seconds} {'seconde' if seconds <= 1 else 'secondes'}"

    async def create_goodbye_image(self, username, avatar_url):
        current_dir = os.path.dirname(__file__)
        base_dir = os.path.abspath(os.path.join(current_dir, ".."))
        
        async with aiohttp.ClientSession() as session:
            async with session.get(avatar_url) as resp:
                avatar_bytes = await resp.read()

        background = Image.open(os.path.join(base_dir, 'background_template_goodbye.png'))
        draw = ImageDraw.Draw(background)
        
        font_large = ImageFont.truetype(os.path.join(base_dir, 'custom_font_large.otf'), 70)
        font_small = ImageFont.truetype(os.path.join(base_dir, 'custom_font_small.otf'), 50)
        font_large_omega = ImageFont.truetype(os.path.join(base_dir, 'custom_font_large.otf'), 55)

        draw.text((325, 70), "A Bientot", font=font_large, fill=(255,255,255))
        draw.text((325, 135), f"{username} chez", font=font_small, fill=(255,255,255))
        draw.text((325, 195), "OMEGA KUBE", font=font_large_omega, fill=(255,255,255))

        avatar = Image.open(io.BytesIO(avatar_bytes)).convert("RGBA").resize((224, 224), Image.LANCZOS)
        mask = Image.new('L', avatar.size, 0)
        mask_draw = ImageDraw.Draw(mask)
        mask_draw.ellipse((12, 12, 212, 212), fill=255)
        background.paste(avatar, (40, 40), mask)

        img_byte_arr = io.BytesIO()
        background.save(img_byte_arr, format='PNG')
        img_byte_arr.seek(0)
        return img_byte_arr

    @commands.Cog.listener()
    async def on_member_remove(self, member):
        conn = sqlite3.connect(self.db_path)
        cursor = conn.cursor()
        cursor.execute('SELECT goodbye_channel FROM server_configs WHERE server_id = ?', (member.guild.id,))
        result = cursor.fetchone()
        conn.close()

        if result and result[0]:
            channel = member.guild.get_channel(result[0])
            if channel:
                img = await self.create_goodbye_image(member.name, member.avatar.url if member.avatar else member.default_avatar.url)
                joined_message = self.humanize_time_delta(member.joined_at)
                
                embed = discord.Embed(title=f"{member} viens de nous quitter.", 
                                    description="Nous espérons vous revoir bientôt <a:rain:1317973615714504806>", 
                                    color=discord.Color.dark_magenta())
                embed.set_footer(text=f"Avait rejoint {joined_message}")
                embed.set_image(url="attachment://goodbye.png")
                await channel.send(embed=embed, file=discord.File(img, filename="goodbye.png"))

    @app_commands.command(name="setgoodbye", description="Définit le salon d'aurevoir")
    @app_commands.checks.has_permissions(administrator=True)
    async def set_goodbye(self, interaction: discord.Interaction, channel: discord.TextChannel):
        conn = sqlite3.connect(self.db_path)
        cursor = conn.cursor()
        cursor.execute('''INSERT INTO server_configs (server_id, goodbye_channel) 
                          VALUES (?, ?) ON CONFLICT(server_id) 
                          DO UPDATE SET goodbye_channel=excluded.goodbye_channel''', 
                       (interaction.guild_id, channel.id))
        conn.commit()
        conn.close()
        await interaction.response.send_message(f"Salon d'aurevoir défini sur {channel.mention}", ephemeral=True)

async def setup(bot):
    await bot.add_cog(Goodbye(bot))