import os
import subprocess
import time

def bitvise_exists():
    paths = [
        r"C:\Program Files\Bitvise SSH Client",
        r"C:\Program Files (x86)\Bitvise SSH Client"
    ]
    for p in paths:
        if os.path.exists(p):
            return True
    return False

def spm_uninstall(dir, args):
    uninstallers = [
        r"C:\Program Files\Bitvise SSH Client\uninst.exe",
        r"C:\Program Files (x86)\Bitvise SSH Client\uninst.exe"
    ]

    # If Bitvise is already not installed, report success immediately
    if not bitvise_exists():
        print 'retcode' + str(0) + 'retcode'
        return

    found = False
    for uninst in uninstallers:
        if os.path.exists(uninst):
            found = True
            try:
                # Run uninstaller - ignore its exit code (it may return 1 even on success)
                subprocess.call('"%s" -unat "BvSshClient"' % uninst, shell=True)
            except Exception:
                pass
            break  # Stop after first found uninstaller

    if not found:
        # No uninstaller found but folder exists — force remove
        print 'retcode' + str(1) + 'retcode'
        return

    # Wait for uninstall to fully complete
    time.sleep(15)

    # Verify removal by checking installation folder
    if not bitvise_exists():
        print 'retcode' + str(0) + 'retcode'
    else:
        print 'retcode' + str(1) + 'retcode'

def spm_install(dir, args):
    try:
        os.chdir(dir)
        subprocess.check_call(args.split())
        print 'retcode' + str(0) + 'retcode'
    except subprocess.CalledProcessError as e:
        print 'retcode' + str(e.returncode) + 'retcode'

def spm_update(dir, args):
    try:
        os.chdir(dir)
        subprocess.check_call(args.split())
        print 'retcode' + str(0) + 'retcode'
    except subprocess.CalledProcessError as e:
        print 'retcode' + str(e.returncode) + 'retcode'