#!/usr/bin/env python3
"""Stub for podman, for the fake Lepton instances (lepton.py): ps, stop, exec.
`podman ps --format "{{.Names}} {{.Labels.adb_port}}"` lists what's running,
as frame_android.running_instances reads it (docs/apks.md)."""
import os
import sys
import time

sys.path.insert(0, '/usr/local/lib/fakeframe')
import fakeframe_state as fs  # noqa: E402


def alive(c):
    try:
        os.kill(c['pid'], 0)
        return True
    except OSError:
        return False


args = sys.argv[1:]
fs.log('podman', args=args)
cmd = args[0] if args else ''
containers = {n: c for n, c in fs.read()['lepton'].items() if alive(c)}
if cmd == 'ps':
    for name, c in sorted(containers.items()):
        print(f"{name} {c['port']}")
elif cmd == 'inspect':
    if args[-1] not in containers:
        sys.exit(1)
    print('true')
elif cmd == 'stop':
    name = args[-1]
    c = containers.get(name)
    if not c:
        sys.exit(f'Error: no container with name or ID "{name}" found: no such container')
    os.kill(c['pid'], 15)
    for _ in range(50):
        if not alive(c):
            break
        time.sleep(0.1)
    print(name)
elif cmd == 'exec':
    name, rest = args[1], ' '.join(args[2:])
    if name not in containers:
        sys.exit(f'Error: no container with name or ID "{name}" found: no such container')
    if 'pidof' in rest:
        print(4242)                   # the app is "up"; there's no Android to ask
    # logcat and anything else: nothing to report
else:
    sys.exit(f'podman stub: unsupported {args}')