#!/usr/bin/env python3
"""
Task Team Collab Worker — HTTP-based agent that polls mngmt for tasks,
executes them with Claude CLI, reports results back.
"""
import os
import sys
import time
import json
import subprocess
import logging
import signal
from datetime import datetime

import requests

# Config
MNGMT_URL = os.environ.get("COLLAB_URL", "https://mngmt.it-enterprise.pro")
TOKEN = os.environ.get("COLLAB_TOKEN", "")
HOSTNAME = os.environ.get("HOSTNAME", "unknown")
CLAUDE_BIN = os.environ.get("CLAUDE_BIN", "/usr/bin/claude")
WORK_DIR = os.environ.get("WORK_DIR", "/opt/task-team")
POLL_INTERVAL = int(os.environ.get("POLL_INTERVAL", "30"))

API = f"{MNGMT_URL}/api/v2/collab"
HEADERS = {"Authorization": f"Bearer {TOKEN}", "Content-Type": "application/json"}

logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
log = logging.getLogger("collab-worker")

running = True
def stop(sig, frame):
    global running
    running = False
signal.signal(signal.SIGTERM, stop)
signal.signal(signal.SIGINT, stop)


def heartbeat():
    try:
        r = requests.post(f"{API}/heartbeat", headers=HEADERS,
                          json={"node": HOSTNAME, "server": "taskteam"}, timeout=10)
        return r.status_code == 200
    except Exception as e:
        log.warning(f"Heartbeat failed: {e}")
        return False


def get_tasks():
    try:
        r = requests.get(f"{API}/tasks", headers=HEADERS, timeout=10)
        if r.status_code == 200:
            data = r.json()
            return [t for t in data.get("data", []) if t.get("status") == "open" and
                    (t.get("assignee") == HOSTNAME or t.get("assignee") is None)]
        return []
    except Exception as e:
        log.warning(f"Get tasks failed: {e}")
        return []


def claim_task(task_id):
    try:
        r = requests.post(f"{API}/tasks/{task_id}/claim", headers=HEADERS, timeout=10)
        return r.status_code == 200
    except:
        return False


def submit_result(task_id, result, status="completed"):
    try:
        r = requests.post(f"{API}/tasks/{task_id}/submit", headers=HEADERS,
                          json={"result": result, "status": status}, timeout=30)
        return r.status_code == 200
    except Exception as e:
        log.warning(f"Submit failed: {e}")
        return False


def execute_claude(prompt, work_dir=WORK_DIR, max_turns=10):
    """Execute Claude CLI and return output."""
    cmd = [CLAUDE_BIN, "--dangerously-skip-permissions",
           "-p", prompt, "--max-turns", str(max_turns)]
    try:
        result = subprocess.run(cmd, capture_output=True, text=True,
                                timeout=600, cwd=work_dir, errors='replace')
        output = result.stdout[-10000:] if len(result.stdout) > 10000 else result.stdout
        if result.returncode != 0 and result.stderr:
            output += f"\n[STDERR]: {result.stderr[-2000:]}"
        return output, result.returncode == 0
    except subprocess.TimeoutExpired:
        return "[ERROR] Claude CLI timed out after 600s", False
    except Exception as e:
        return f"[ERROR] {str(e)}", False


def process_task(task):
    task_id = task["id"]
    title = task.get("title", "")
    description = task.get("description", "")
    log.info(f"Processing task #{task_id}: {title}")

    if not claim_task(task_id):
        log.warning(f"Failed to claim task #{task_id}")
        return

    prompt = f"TASK: {title}\n\nDESCRIPTION:\n{description}\n\nExecute this task and report results."
    output, success = execute_claude(prompt)

    ts = datetime.utcnow().strftime("%Y-%m-%d %H:%M UTC")
    feedback = f"⏰ {ts}\n💻 {HOSTNAME}\n{'🟢' if success else '🔴'} {'Done' if success else 'Failed'}\n\n{output}"

    submit_result(task_id, feedback, "completed" if success else "failed")
    log.info(f"Task #{task_id} {'completed' if success else 'failed'}")


def main():
    log.info(f"Collab Worker started: {HOSTNAME}, polling every {POLL_INTERVAL}s")
    if not TOKEN:
        log.error("COLLAB_TOKEN not set!")
        sys.exit(1)

    while running:
        heartbeat()
        tasks = get_tasks()
        for task in tasks:
            if not running:
                break
            process_task(task)
        for _ in range(POLL_INTERVAL):
            if not running:
                break
            time.sleep(1)


if __name__ == "__main__":
    main()