"""
Autonomous mode — runs up to MAX_AUTONOMOUS_CYCLES cycles.

Each cycle:
  1. Reason with tools (up to MAX_TOOL_CALLS tool calls)
  2. Send response to user
  3. Reflect → decide continue + timer
  4. Sleep timer
  5. Wake up → next cycle (no new user input)
"""
import asyncio
import config
from agent.savvy import Savvy


async def run_autonomous(
    savvy:      Savvy,
    user_input: str,
    ctx:        dict
) -> None:
    """
    Full autonomous lifecycle. Sends messages via ctx["send_fn"].
    This is a fire-and-forget coroutine — the handler doesn't await the full loop.
    """
    send_fn = ctx["send_fn"]

    await send_fn("🤖 **Autonomous mode activated.** Starting cycle 1...")

    # Build initial message history
    messages = savvy.build_messages(
        user_input,
        extra_system=(
            "You are in AUTONOMOUS mode. After your response, you MUST output a JSON "
            "reflection block on its own line:\n"
            '{"continue": true/false, "wake_in_seconds": <60-600>, "next_task": "<what you\'ll do next>"}\n'
            "Set continue=false when there is nothing meaningful left to do."
        )
    )

    for cycle in range(1, config.MAX_AUTONOMOUS_CYCLES + 1):

        # ── Reason + execute tools ────────────────────────────────────────────
        reply, messages = await savvy.reason(messages, ctx, use_tools=True)

        # ── Send the response ─────────────────────────────────────────────────
        await send_fn(f"**[Cycle {cycle}/{config.MAX_AUTONOMOUS_CYCLES}]**\n\n{reply}")

        # ── Reflect ───────────────────────────────────────────────────────────
        reflection = await savvy.reflect(messages)

        if not reflection.get("continue", False):
            await send_fn("✅ Autonomous session complete.")
            break

        wake_in   = max(
            config.WAKE_MIN_SECONDS,
            min(reflection.get("wake_in_seconds", 120), config.WAKE_MAX_SECONDS)
        )
        next_task = reflection.get("next_task", "continue")
        mins, sec = divmod(wake_in, 60)

        await send_fn(
            f"💤 Reflecting... next task: _{next_task}_\n"
            f"Waking in **{mins}m {sec}s**"
        )

        # ── Sleep until next cycle ────────────────────────────────────────────
        await asyncio.sleep(wake_in)

        # Inject a system nudge into message history for the next cycle
        messages.append({
            "role":    "user",
            "content": f"[SYSTEM] Wake-up — cycle {cycle + 1}. Continue your task: {next_task}"
        })

    else:
        await send_fn("⚠️ Max autonomous cycles reached.")