#!/usr/bin/env python3
# GOLDEN PATH: container -> VM (34.139.37.135) -> bl (100.123.153.75) -> netns -> browser -> agent
# This API is the bridge. Every call traverses 4 hops. Respect the path.

"""
Multi-account muse.ai chat API with approval handling.

Approvals: The browser may show permission dialogs (e.g., "Allow pip to share
information with 34.139.37.135?"). The API detects these and handles them:
- Known-safe (our infrastructure IPs): auto-approve
- Unknown: raise APPROVAL_NEEDED, operator decides via chat

Usage:
  muse-chat-api.py --account <agent> send "message"
  muse-chat-api.py --account <agent> messages [n]
  muse-chat-api.py --account <agent> wait [timeout]
  muse-chat-api.py --account <agent> approvals  # check pending approvals
"""
import json, urllib.request, websocket, time, sys, argparse

ACCOUNTS = {
    "muse": ("muse", "http://127.0.0.1:9410/json/list"),
    "pip": ("pip", "http://127.0.0.1:9420/json/list"),
    "646": ("646", "http://127.0.0.1:9430/json/list"),
    "646": ("646", "http://10.201.202.2:9353/json/list"),
}

# IPs we trust for auto-approval (our infrastructure)
TRUSTED_IPS = {
    "34.139.37.135",  # VM (gateway)
    "100.123.153.75", # bl (main compute)
    "100.81.31.9",    # VM tailnet
}

def get_page(node, cdp_url):
    with urllib.request.urlopen(cdp_url, timeout=5) as r:
        ts = json.load(r)
    pages = [t for t in ts if t.get('type') == 'page']
    if not pages:
        print("ERROR: No page found", file=sys.stderr)
        sys.exit(1)
    return pages[0]

def ev(ws, expr, await_p=False):
    ws.send(json.dumps({
        "id": 1, "method": "Runtime.evaluate",
        "params": {"expression": expr, "returnByValue": True, "awaitPromise": await_p}
    }))
    resp = json.loads(ws.recv())
    return resp.get('result', {}).get('result', {}).get('value')

def check_approvals(ws):
    """
    Check for browser permission dialogs.
    Returns list of (dialog_text, is_trusted, action_taken).
    """
    result = ev(ws, """(() => {
      const dialogs = [];
      // Look for permission prompts (common patterns)
      const body = document.body.innerText;
      // Check for "Allow ... to share" pattern
      if (body.includes('Allow') && body.includes('to share')) {
        // Find the dialog
        const els = [...document.querySelectorAll('*')].filter(el => {
          const t = el.innerText || '';
          return t.includes('Allow') && t.includes('to share') && t.length < 500;
        });
        for (const el of els.slice(0,3)) {
          dialogs.push(el.innerText.slice(0,200));
        }
      }
      // Check for other permission patterns
      const perm_btns = [...document.querySelectorAll('button')].filter(b => {
        const t = (b.innerText||'').toLowerCase();
        return t.includes('allow') || t.includes('deny') || t.includes('block');
      });
      if (perm_btns.length >= 2 && dialogs.length === 0) {
        // Might be a permission dialog
        const parent = perm_btns[0].closest('div');
        if (parent) dialogs.push(parent.innerText.slice(0,200));
      }
      return JSON.stringify(dialogs);
    })()""")
    try:
        dialogs = json.loads(result) if result else []
    except:
        dialogs = []
    
    actions = []
    for d in dialogs:
        # Extract IP if present
        import re
        ips = re.findall(r'\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b', d)
        is_trusted = any(ip in TRUSTED_IPS for ip in ips)
        if is_trusted:
            # Auto-approve: click "Allow once" or "Allow"
            clicked = ev(ws, """(async()=>{
              const b = [...document.querySelectorAll('button')].find(x=>{
                const t = (x.innerText||'').toLowerCase();
                return t.includes('allow once') || t === 'allow';
              });
              if (b) { b.click(); return 'clicked:'+b.innerText.slice(0,20); }
              return 'NOTFOUND';
            })()""", True)
            actions.append((d[:80], True, clicked))
        else:
            actions.append((d[:80], False, "APPROVAL_NEEDED"))
    
    return actions

def cmd_approvals(ws):
    """Check and handle pending approvals."""
    actions = check_approvals(ws)
    if not actions:
        print("No pending approvals")
        return
    for dialog, trusted, action in actions:
        print(f"Dialog: {dialog}")
        print(f"  Trusted: {trusted}, Action: {action}")
        if not trusted:
            print("  APPROVAL_NEEDED: Manual review required")
            sys.exit(2)

def cmd_send(ws, message):
    # Check approvals first
    actions = check_approvals(ws)
    for dialog, trusted, action in actions:
        if not trusted:
            print(f"APPROVAL_NEEDED: {dialog[:80]}", file=sys.stderr)
            sys.exit(2)
    
    msg_esc = message.replace('\\', '\\\\').replace('`', '\\`').replace('$', '\\$')
    result = ev(ws, f"""(async()=>{{
      const input = document.querySelector('[contenteditable="true"]') ||
                    document.querySelector('textarea[placeholder*="Message"]') ||
                    [...document.querySelectorAll('div[role="textbox"]')][0];
      if (!input) return 'NOINPUT';
      input.focus();
      document.execCommand('insertText', false, `{msg_esc}`);
      await new Promise(r=>setTimeout(r,500));
      const send = [...document.querySelectorAll('button')].find(b=>
        b.getAttribute('aria-label')&&b.getAttribute('aria-label').toLowerCase().includes('send')
      );
      if (send) {{ send.click(); return 'sent'; }}
      const ke = new KeyboardEvent('keydown', {{key:'Enter', code:'Enter', bubbles:true}});
      input.dispatchEvent(ke);
      return 'enter-sent';
    }})()""", True)
    print(result)

def cmd_messages(ws, n=5):
    # Check approvals first (non-blocking)
    check_approvals(ws)
    result = ev(ws, f"""(() => {{
      const ps = [...document.querySelectorAll('p')].slice(-{n*2}).map(p=>p.innerText.slice(0,200));
      return ps.join('\\n---\\n');
    }})()""")
    print(result)

def cmd_wait(ws, timeout=30):
    print(f"Waiting {timeout}s for response...")
    # Check approvals periodically during wait
    for i in range(timeout // 5):
        actions = check_approvals(ws)
        for dialog, trusted, action in actions:
            if not trusted:
                print(f"APPROVAL_NEEDED: {dialog[:80]}", file=sys.stderr)
                sys.exit(2)
        time.sleep(5)
    cmd_messages(ws, 2)

def main():
    p = argparse.ArgumentParser()
    p.add_argument('--account', required=True, choices=list(ACCOUNTS.keys()),
                   help='Agent name (matches node, profile, ACCOUNTS.md)')
    p.add_argument('command', choices=['send', 'messages', 'wait', 'approvals'])
    p.add_argument('arg', nargs='?', default=None)
    args = p.parse_args()

    node, cdp_url = ACCOUNTS[args.account]
    page = get_page(node, cdp_url)
    ws = websocket.create_connection(page['webSocketDebuggerUrl'], timeout=15)

    try:
        if args.command == 'send':
            if not args.arg:
                print("ERROR: send requires a message", file=sys.stderr)
                sys.exit(1)
            cmd_send(ws, args.arg)
        elif args.command == 'messages':
            n = int(args.arg) if args.arg else 5
            cmd_messages(ws, n)
        elif args.command == 'wait':
            t = int(args.arg) if args.arg else 30
            cmd_wait(ws, t)
        elif args.command == 'approvals':
            cmd_approvals(ws)
    finally:
        ws.close()

if __name__ == '__main__':
    main()