"""Action log parsing for context building."""

import os
import json
import logging

logger = logging.getLogger('Beta')


def get_recent_logs(limit: int = 15) -> str:
    """Read and format recent action logs for context."""
    log_path = "data/actions.log"
    if not os.path.exists(log_path):
        return ""

    try:
        with open(log_path, 'r', encoding='utf-8') as f:
            lines = f.readlines()
            last_lines = lines[-limit:]

        formatted_logs = []
        for line in last_lines:
            if "ACTION:" not in line:
                continue
            try:
                parts = line.split("ACTION:", 1)
                if len(parts) <= 1:
                    continue
                json_str = parts[1].strip()
                data = json.loads(json_str)

                timestamp = data.get("timestamp", "").split("T")[1].split(".")[0]
                action = data.get("action", "UNKNOWN")
                user = data.get("user", "System")
                params = data.get("params", {})
                success = data.get("success", True)

                details = _format_action_details(action, params)
                status = "\u2705" if success else "\u274c"
                formatted_logs.append(f"[{timestamp}] {status} {action} {details} by {user}")
            except Exception:
                continue

        if not formatted_logs:
            return ""

        return "\n[M\u00c9MOIRE DES ACTIONS R\u00c9CENTES (V\u00c9RIT\u00c9)]\n" + "\n".join(formatted_logs) + "\n"
    except Exception as e:
        logger.error(f"Error reading actions log: {e}")
        return ""


def _format_action_details(action: str, params: dict) -> str:
    """Format action-specific details for log display."""
    if action == 'SEND_MESSAGE':
        target = params.get('channel_id') or params.get('user_id')
        content = params.get('content', '')[:20]
        return f"(to: {target}, content: {content}...)"

    if 'CHANNEL' in action:
        items = params.get('channels', [])
        if items:
            names = [i.get('channel_name', 'unknown') for i in items]
            return f"(channels: {', '.join(names)})"

    if 'ROLE' in action:
        items = params.get('roles', [])
        if items:
            names = [i.get('role_name', 'unknown') for i in items]
            return f"(roles: {', '.join(names)})"

    if action in ('KICK', 'BAN', 'WARN', 'MUTE', 'TIMEOUT'):
        target = params.get('user_id', 'unknown')
        reason = params.get('reason', 'no reason')
        return f"(target: {target}, reason: {reason})"

    if action == 'PURGE':
        purges = params.get('purges', [])
        if purges:
            p = purges[0]
            return f"(channel: {p.get('channel_name')}, amount: {p.get('amount')})"

    return ""