#! /usr/bin/python2
 #
 #    Copyright (C) 2015 vmware inc.
 #
 #    Author: Mahmoud Bassiouny <mbassiouny@vmware.com>
 

 from argparse import ArgumentParser

 from installer import Installer
 import crypt
 import random
 import string
 import subprocess
 import sys
 import os
 from jsonwrapper import JsonWrapper

 from packageselector import PackageSelector

 
 def query_yes_no(question, default="no"):
     valid = {"yes": True, "y": True, "ye": True,
              "no": False, "n": False}
     if default is None:
         prompt = " [y/n] "
     elif default == "yes":
         prompt = " [Y/n] "
     elif default == "no":
         prompt = " [y/N] "
     else:
         raise ValueError("invalid default answer: '%s'" % default)
 
     while True:
         sys.stdout.write(question + prompt)
         choice = raw_input().lower().strip()
         if default is not None and choice == '':
             return valid[default]
         elif choice in valid:
             return valid[choice]
         else:
             sys.stdout.write("Please respond with 'yes' or 'no' "
                              "(or 'y' or 'n').\n")
 
 def create_vmdk_and_partition(config, vmdk_path):
     partitions_data = {}

     firmware = "bios"
     if 'boot' in config and config['boot'] == 'efi':
         firmware = "efi"
     process = subprocess.Popen(['./mk-setup-vmdk.sh', '-rp', config['size']['root'], '-sp', config['size']['swap'], '-n', vmdk_path, '-fm', firmware, '-m'], stdout=subprocess.PIPE)

     count = 0
     for line in iter(process.stdout.readline, ''):
         sys.stdout.write(line)
         if line.startswith("DISK_DEVICE="):
             partitions_data['disk'] = line.replace("DISK_DEVICE=", "").strip()
             count += 1
         elif line.startswith("ROOT_PARTITION="):
             partitions_data['root'] = line.replace("ROOT_PARTITION=", "").strip()

             partitions_data['boot'] = partitions_data['root']
             partitions_data['bootdirectory'] = '/boot/'

             count += 1

     if count == 2:
         partitions_data['partitions'] = [{'path': partitions_data['root'], 'mountpoint': '/', 'filesystem': 'ext4'}]
 

     return partitions_data, count == 2

 def get_file_name_with_last_folder(filename):
     basename = os.path.basename(filename)
     dirname = os.path.dirname(filename)
     lastfolder = os.path.basename(dirname)
     name = os.path.join(lastfolder, basename)
     return name
 def create_pkg_list_to_copy_to_iso(build_install_option, output_data_path):

     json_wrapper_option_list = JsonWrapper(build_install_option)
     option_list_json = json_wrapper_option_list.read()

     options_sorted = option_list_json.items()

     packages = []
     for install_option in options_sorted:

         if install_option[0] != "iso":

             file_path = os.path.join(output_data_path, install_option[1]["file"])

             json_wrapper_package_list = JsonWrapper(file_path)
             package_list_json = json_wrapper_package_list.read()
             packages = packages + package_list_json["packages"]

     return packages

     #copy_flags 1: add the rpm file for the package
     #           2: add debuginfo rpm file for the package.
     #           4: add src rpm file for the package
 def create_rpm_list_to_be_copied_to_iso(pkg_to_rpm_map_file, build_install_option, copy_flags, output_data_path):
     packages = []
     if build_install_option is None:
         packages = []
     else:
         packages = create_pkg_list_to_copy_to_iso(build_install_option, output_data_path)
 
     rpm_list = []
     json_pkg_to_rpm_map = JsonWrapper(pkg_to_rpm_map_file)
     pkg_to_rpm_map = json_pkg_to_rpm_map.read()
     for k in pkg_to_rpm_map:
         if build_install_option is None or k in packages:
             if not pkg_to_rpm_map[k]['rpm'] is None and bool(copy_flags & 1):
                 filename = pkg_to_rpm_map[k]['rpm']
                 rpm_list.append(get_file_name_with_last_folder(filename))
             if not pkg_to_rpm_map[k]['debugrpm'] is None and bool(copy_flags & 2):
                 filename = pkg_to_rpm_map[k]['debugrpm']

                 rpm_list.append(pkg_to_rpm_map[k]['debugrpm'])

             if not pkg_to_rpm_map[k]['sourcerpm'] is None and bool(copy_flags & 4):
                 rpm_list.append(pkg_to_rpm_map[k]['sourcerpm'])
     return rpm_list
 

 def create_additional_file_list_to_copy_in_iso(base_path, build_install_option):
     json_wrapper_option_list = JsonWrapper(build_install_option)
     option_list_json = json_wrapper_option_list.read()
     options_sorted = option_list_json.items()
     file_list = []
     for install_option in options_sorted:

         if "additional-files" in install_option[1]:

             file_list = file_list + map(lambda filename: os.path.join(base_path, filename), install_option[1].get("additional-files"))

     return file_list
 

 def get_live_cd_status_string(build_install_option):
     json_wrapper_option_list = JsonWrapper(build_install_option)
     option_list_json = json_wrapper_option_list.read()
     options_sorted = option_list_json.items()
     file_list = []
     for install_option in options_sorted:

         if "live-cd" in install_option[1]:

             if install_option[1].get("live-cd") == True:
                 return "true"
     return "false"
 

 def make_src_iso(working_directory, src_iso_path, rpm_list):
     if os.path.isdir(working_directory):
         process = subprocess.Popen(['rm', '-rf', working_directory])
         retval = process.wait()
     process = subprocess.Popen(['mkdir', '-p', os.path.join(working_directory, "SRPMS")])
     retval = process.wait()
     for aaa in rpm_list:
         if os.path.isfile(aaa):
             process = subprocess.Popen(['cp', aaa, os.path.join(working_directory, "SRPMS")])
             retval = process.wait()
     process = subprocess.Popen(['mkisofs', '-r', '-o', src_iso_path, working_directory])
     retval = process.wait()
     process = subprocess.Popen(['rm', '-rf', options.working_directory])
     retval = process.wait()
 

 def make_debug_iso(working_directory, debug_iso_path, rpm_list):
     if os.path.isdir(working_directory):
         process = subprocess.Popen(['rm', '-rf', working_directory])
         retval = process.wait()
     process = subprocess.Popen(['mkdir', '-p', os.path.join(working_directory, "DEBUGRPMS")])
     retval = process.wait()
     for aaa in rpm_list:
         if os.path.isfile(aaa):
             dirname = os.path.dirname(aaa)
             lastfolder = os.path.basename(dirname)
             dest_working_directory = os.path.join(working_directory, "DEBUGRPMS", lastfolder)
             if not os.path.isdir(dest_working_directory):
                 process = subprocess.Popen(['mkdir', dest_working_directory])
                 retval = process.wait()
             process = subprocess.Popen(['cp', aaa, dest_working_directory])
             retval = process.wait()
     process = subprocess.Popen(['mkisofs', '-r', '-o', debug_iso_path, working_directory])
     retval = process.wait()
     process = subprocess.Popen(['rm', '-rf', options.working_directory])
     retval = process.wait()
 

 if __name__ == '__main__':
     usage = "Usage: %prog [options] <config file> <tools path>"

     parser = ArgumentParser(usage)
     parser.add_argument("-i", "--iso-path",  dest="iso_path")
     parser.add_argument("-j", "--src-iso-path",  dest="src_iso_path")

     parser.add_argument("-k", "--debug-iso-path",  dest="debug_iso_path")

     parser.add_argument("-v", "--vmdk-path", dest="vmdk_path")
     parser.add_argument("-w",  "--working-directory",  dest="working_directory", default="/mnt/photon-root")
     parser.add_argument("-l",  "--log-path",  dest="log_path", default="../stage/LOGS")
     parser.add_argument("-r",  "--rpm-path",  dest="rpm_path", default="../stage/RPMS")
     parser.add_argument("-x",  "--srpm-path",  dest="srpm_path", default="../stage/SRPMS")
     parser.add_argument("-o", "--output-data-path", dest="output_data_path", default="../stage/common/data/")
     parser.add_argument("-f", "--force", action="store_true", dest="force", default=False)
     parser.add_argument("-p", "--package-list-file", dest="package_list_file", default="../common/data/build_install_options_all.json")
     parser.add_argument("-m", "--stage-path", dest="stage_path", default="../stage")
     parser.add_argument("-s", "--json-data-path", dest="json_data_path", default="../stage/common/data/")
     parser.add_argument("-d", "--pkg-to-rpm-map-file", dest="pkg_to_rpm_map_file", default="../stage/pkg_info.json")
     parser.add_argument("-c", "--pkg-to-be-copied-conf-file", dest="pkg_to_be_copied_conf_file")
     parser.add_argument('configfile', nargs='?')
     options = parser.parse_args()

     # Cleanup the working directory
     if not options.force:
         proceed = query_yes_no("This will remove everything under {0}. Are you sure?".format(options.working_directory))
         if not proceed:
             sys.exit(0)

     if options.src_iso_path:

         rpm_list = create_rpm_list_to_be_copied_to_iso(options.pkg_to_rpm_map_file, options.pkg_to_be_copied_conf_file, 4, options.output_data_path)

         make_src_iso(options.working_directory, options.src_iso_path, rpm_list)

     else:
         if options.iso_path:
             # Check the arguments

             if options.configfile:

                 parser.error("Incorrect arguments")
             config = {}
             config['iso_system'] = True
             config['vmdk_install'] = False
             config['type'] = 'iso'
 
         elif options.vmdk_path:
             # Check the arguments

             if not options.configfile:

                 parser.error("Incorrect arguments")
 
             # Read the conf file

             config = (JsonWrapper(options.configfile)).read()

             config['disk'], success = create_vmdk_and_partition(config, options.vmdk_path)
             if not success:

                 print("Unexpected failure, please check the logs")

                 sys.exit(1)
 
             config['iso_system'] = False
             config['vmdk_install'] = True

 
         else:

             # Check the arguments

             if not options.configfile:

                 parser.error("Incorrect arguments")

             # Read the conf file

             config = (JsonWrapper(options.configfile)).read()

             config['iso_system'] = False
             config['vmdk_install'] = False

         config["pkg_to_rpm_map_file"] = options.pkg_to_rpm_map_file

         if 'password' in config:
             # crypt the password if needed
             if config['password']['crypted']:
                 config['password'] = config['password']['text']
             else:
                 config['password'] = crypt.crypt(config['password']['text'], "$6$" + "".join([random.choice(string.ascii_letters + string.digits) for _ in range(16)]))

         # Check the installation type
         json_wrapper_option_list = JsonWrapper(options.package_list_file)
         option_list_json = json_wrapper_option_list.read()
         options_sorted = option_list_json.items()

         packages = []
         packages = PackageSelector.get_packages_to_install(options_sorted, config['type'], options.output_data_path)

         config['packages'] = packages

         if (os.path.isdir(options.working_directory)):
             process = subprocess.Popen(['rm', '-rf', options.working_directory])
             retval = process.wait()

         process = subprocess.Popen(['mkdir', '-p', os.path.join(options.working_directory, "photon-chroot")])

         retval = process.wait()
 

         config['working_directory'] = options.working_directory
 
         # Run the installer
         package_installer = Installer(config, rpm_path = options.rpm_path, log_path = options.log_path)
         package_installer.install(None)
 
         # Making the iso if needed
         if options.iso_path:

             rpm_list = " ".join(create_rpm_list_to_be_copied_to_iso(options.pkg_to_rpm_map_file, options.pkg_to_be_copied_conf_file, 1, options.output_data_path))

             files_to_copy = " ".join(create_additional_file_list_to_copy_in_iso(os.path.abspath(options.stage_path), options.package_list_file))
             live_cd = get_live_cd_status_string(options.package_list_file)
             process = subprocess.Popen(['./mk-install-iso.sh', '-w', options.working_directory, options.iso_path, options.rpm_path, options.package_list_file, rpm_list, options.stage_path, files_to_copy, live_cd, options.json_data_path])
             retval = process.wait()
 

         if options.debug_iso_path:
             debug_rpm_list = create_rpm_list_to_be_copied_to_iso(options.pkg_to_rpm_map_file, options.pkg_to_be_copied_conf_file, 2, options.output_data_path)
             make_debug_iso(options.working_directory, options.debug_iso_path, debug_rpm_list)
 

         # Cleaning up for vmdk
         if 'vmdk_install' in config and config['vmdk_install']:
             process = subprocess.Popen(['./mk-clean-vmdk.sh', config['disk']['disk']])
             process.wait()
 
         #Clean up the working directories

         if (options.iso_path or options.vmdk_path or options.debug_iso_path):

             process = subprocess.Popen(['rm', '-rf', options.working_directory])
             retval = process.wait()