from __future__ import print_function
import os
import os.path
import sys
import subprocess
import platform
#
# Script Compatibility:
# - Python 2.7.15
# - Python 3.7.0
#

SUPPORTED_PYTHON_PLATFORMS = ['Windows', 'Linux', 'Darwin']

def fail(message, *args, **kwargs):
    print((message % args).format(**kwargs))
    sys.exit(1)

def which(program):
    import os
    def is_exe(fpath):
        return os.path.isfile(fpath) and os.access(fpath, os.X_OK)

    if (sys.platform == 'win32'):
        program += ".exe"
    fpath, fname = os.path.split(program)
    if fpath:
        if is_exe(program):
            return program
    else:
        for path in os.environ["PATH"].split(os.pathsep):
            exe_file = os.path.join(path, program)
            if is_exe(exe_file):
                return exe_file

    return None

def calcAndPrintCertHash(apk_fullfn, apk_build_type):
    if not apk_fullfn or not os.path.isfile(apk_fullfn):
        return None

    if (platform.system() == 'Linux'):
        try:
            keytool_bin = which("keytool")
            result_hash = subprocess.check_output(keytool_bin + ' -list -printcert -jarfile "' + apk_fullfn + '" | grep "SHA1: " | cut -d " " -f 3 | xxd -r -p | openssl base64', shell=True)
            result_hash = result_hash.strip('\n')
        except:
            print('[WARN] Failed to exec \'keytool\'.');
            return None

        release_types = {
            "2ScaPj41giu4vFh+Y7Q0GJTqwbA=": "GitHub",
            "nyupq9aU0x6yK8RHaPra5GbTqQY=": "F-Droid",
            "dQAnHXvlh80yJgrQUCo6LAg4294=": "Google Play"
        }
        print('[INFO] Built ' + apk_build_type + ' APK for ' + release_types.get(result_hash, "INVALID_CHANNEL") + ' (signing certificate hash: ' + result_hash + ')')

    return None

def pushAPKtoDevice(apk_package_name, apk_fullfn_to_push):
    if not debug_apk or not os.path.isfile(debug_apk):
        print('[ERROR] pushAPKtoDevice: APK not found.');
        return None

    # Check if adb is available.
    adb_bin = which("adb");
    if not adb_bin:
        print('[WARNING] adb is not available on the PATH.')
        # install_adb();
        # Retry: Check if adb is available.
        # adb_bin = which("adb");
        if not adb_bin:
            print('[ERROR] adb is not available on the PATH.')
            sys.exit(0)
    print('[INFO] adb_bin=\'' + adb_bin + '\'')

    print('[INFO] Connecting to attached usb device ...')
    try:
        subprocess.check_call([
            adb_bin,
            'devices'
        ])
    except:
        sys.exit(0)

    print('[INFO] Installing APK to attached usb device ...')
    try:
        subprocess.check_call(adb_bin + ' install -r --user 0 ' + apk_fullfn_to_push)
    except:
        sys.exit(0)

    print('[INFO] Starting app ...')
    try:
        subprocess.check_call(adb_bin + ' shell monkey -p ' + apk_package_name + ' 1')
    except:
        sys.exit(0)

    return None


#################
# Script Main   #
#################
if platform.system() not in SUPPORTED_PYTHON_PLATFORMS:
    fail('Unsupported python platform %s. Supported platforms: %s', platform.system(),
         ', '.join(SUPPORTED_PYTHON_PLATFORMS))
print ('')

# Build FullFN of "app-debug.apk".
current_dir = os.path.dirname(os.path.realpath(__file__))
enable_push_to_device = os.path.realpath(os.path.join(current_dir, "..", "#enable_push_to_device"))
debug_apk = os.path.realpath(os.path.join(current_dir, 'build', 'outputs', 'apk', 'debug', 'app-debug.apk'))
release_apk = os.path.realpath(os.path.join(current_dir, 'build', 'outputs', 'apk', 'release', 'app-release.apk'))

# Calculate certificate hash of built APKs and output if it matches a known release channel.
# See the wiki for more details: wiki/Switch-between-releases_Verify-APK-is-genuine.md
calcAndPrintCertHash(debug_apk, "debug");
calcAndPrintCertHash(release_apk, "release");

#
# Check if push to device is enabled.
#
# Purpose: Push to device eases deployment on a real Android test device for developers
#           that cannot or do not wish to install the full Android Studio IDE.
if not enable_push_to_device or not os.path.isfile(enable_push_to_device):
    # print('[INFO] push-to-device after build is DISABLED. To enable it, run \'echo . > ' + enable_push_to_device + '\'')
    sys.exit(0)

pushAPKtoDevice("com.github.catfriend1.syncthingandroid.debug", debug_apk)