import os, signal, asyncio, pathlib
import discord
from discord.ext import commands
from dotenv import load_dotenv
from configparser import ConfigParser
from data_manager import DataManager
from modules.common.boot_notice import post_boot_notice

# Version consists of:
# Major.Enhancement.Minor.Patch.Test  (Test is alphanumeric; doesn’t trigger auto update)
VERSION = "0.3.9.2.a2"

# ---------- Env & config loading ----------

load_dotenv()

TOKEN = os.getenv('DISCORD_TOKEN', '').strip()
CONFIG_PATH = os.getenv('SHAI_CONFIG', '/config/settings.conf')

config = ConfigParser()
read_files = config.read(CONFIG_PATH)
if not read_files:
    print(f"[Config] INFO: no config at {CONFIG_PATH} (or unreadable). Will rely on env + defaults.")
if 'DEFAULT' not in config:
    config['DEFAULT'] = {}

def _overlay_env_into_config(cfg: ConfigParser):
    """
    Overlay all SHAI_* environment variables into cfg['DEFAULT'] so env wins.
    Also accept SHAI_DATA_FILE or SHAI_DATA for data_file.
    """
    d = cfg['DEFAULT']
    for k, v in os.environ.items():
        if not k.startswith('SHAI_'):
            continue
        key = k[5:].lower()  # drop 'SHAI_'
        if key == 'data':
            key = 'data_file'
        d[key] = str(v)
    if not d.get('data_file', '').strip():
        d['data_file'] = '/data/data.json'

# IMPORTANT: apply env overlay BEFORE we read values from config
_overlay_env_into_config(config)

# ---------- Discord intents ----------

intents = discord.Intents.default()
intents.guilds = True
intents.members = True
intents.message_content = True
intents.reactions = True
intents.emojis_and_stickers = True
intents.voice_states = True

# ---------- Bot + DataManager ----------

data_file = config['DEFAULT']['data_file']  # guaranteed present by overlay
if not TOKEN:
    print("[Config] WARNING: DISCORD_TOKEN not set (env). Bot will fail to log in.")

bot = commands.Bot(command_prefix='!', intents=intents)
bot.config = config
bot.data_manager = DataManager(data_file)

# ---------- Self-check helpers ----------

async def _guild_selfcheck(g: discord.Guild, cfg):
    problems = []

    def _need_channel(id_key, *perms):
        raw = cfg.get(id_key)
        if not raw:
            problems.append(f"Missing config key: {id_key}")
            return
        try:
            cid = int(raw)
        except Exception:
            problems.append(f"Bad channel id for {id_key}: {raw}")
            return
        ch = g.get_channel(cid)
        if not ch:
            problems.append(f"Channel not found: {id_key}={cid}")
            return
        me = g.me
        p = ch.permissions_for(me)
        for perm in perms:
            if not getattr(p, perm, False):
                problems.append(f"Missing permission on #{ch.name}: {perm}")

    _need_channel('mod_channel_id', 'read_messages', 'send_messages', 'add_reactions', 'read_message_history')
    _need_channel('modlog_channel_id', 'read_messages', 'send_messages')
    _need_channel('pirates_list_channel_id', 'read_messages', 'send_messages')

    if problems:
        print(f"[SelfCheck:{g.name}]")
        for p in problems:
            print(" -", p)

# ---------- events ----------

@bot.event
async def on_ready():
    print(f"Logged in as {bot.user} (ID: {bot.user.id})")
    print("[Intents] members:", bot.intents.members,
          "/ message_content:", bot.intents.message_content,
          "/ voice_states:", bot.intents.voice_states)

    # Per-guild permission sanity checks (console log)
    await asyncio.gather(*[_guild_selfcheck(g, bot.config['DEFAULT']) for g in bot.guilds])

    # Slash command sync
    try:
        dev_gid = bot.config['DEFAULT'].get('dev_guild_id')
        if dev_gid:
            guild = bot.get_guild(int(dev_gid))
            if guild:
                synced = await bot.tree.sync(guild=guild)
                print(f"[Slash] Synced {len(synced)} commands to {guild.name}")
            else:
                synced = await bot.tree.sync()
                print(f"[Slash] Synced {len(synced)} commands globally (dev_guild_id not in cache)")
        else:
            synced = await bot.tree.sync()
            print(f"[Slash] Synced {len(synced)} commands globally")
    except Exception as e:
        print("[Slash] Sync failed:", repr(e))

    # Post boot status message (wrapper/env-driven or RSS fallback)
    try:
        await post_boot_notice(bot)
    except Exception as e:
        print("[BootNotice] failed:", repr(e))

# ---------- Auto-discover extensions ----------

modules_path = pathlib.Path(__file__).parent / 'modules'
extensions = []
for folder in modules_path.iterdir():
    if folder.is_dir():
        for file in folder.glob('*.py'):
            if file.name == '__init__.py':
                continue
            extensions.append(f"modules.{folder.name}.{file.stem}")

def _install_signal_handlers(loop, bot):
    def _graceful(*_):
        loop.create_task(bot.close())
    for s in (signal.SIGTERM, signal.SIGINT):
        try:
            loop.add_signal_handler(s, _graceful)
        except NotImplementedError:
            pass  # Windows

async def main():
    async with bot:
        for ext in extensions:
            try:
                await bot.load_extension(ext)
                print(f"[Modules] Loaded: {ext}")
            except Exception as e:
                print(f"[Modules] Failed to load {ext}:", repr(e))
        loop = asyncio.get_running_loop()
        _install_signal_handlers(loop, bot)
        await bot.start(TOKEN)

if __name__ == '__main__':
    asyncio.run(main())