#! /usr/bin/python3

from apport import hookutils

from glob import glob
from io import BytesIO
from problem_report import CompressedValue
import apport
import os
import re
import shutil
import subprocess
import sys
import tempfile
import time
import zipfile

opt_debug = False


# Apport helper routines
def debug(text):
    if opt_debug:
        print("%s\n" % (text))


def attach_command_output(report, command_list, key):
    debug("%s" % (' '.join(command_list)))
    log = hookutils.command_output(command_list)
    if not log or log[:5] == "Error":
        return
    report[key] = log


def attach_pathglob_as_zip(report, pathglob, key, data_filter=None, type="b"):
    """Use zip file here because tarfile module in linux can't
       properly handle file size 0 with content in /sys directory like
       edid file. zipfile module works fine here. So we use it.

       type:
            a: for ascii  type of data
            b: for binary type of data
       """
    if data_filter is None:
        data_filter = lambda x: x
    filelist = []
    for pg in pathglob:
        for file in glob(pg):
            filelist.append(file)

    zipf = BytesIO()
    with zipfile.ZipFile(zipf, mode='w', compression=zipfile.ZIP_DEFLATED) as \
            zipobj:
        for f in filelist:
            if opt_debug:
                print(key, f)
            if not os.path.isfile(f):
                if opt_debug:
                    print(f, "is not a file")
                continue
            if type == "a":
                with open(f) as f_fd:
                    data = f_fd.read()
                    zipobj.writestr(f, data_filter(data))
            else:
                zipobj.write(f)
    cvalue = CompressedValue()
    cvalue.set_value(zipf.getbuffer())
    report[key + ".zip"] = cvalue


def attach_nvidia_debug_logs(report, keep_locale=False):
    # check if nvidia-bug-report.sh exists
    nv_debug_command = 'nvidia-bug-report.sh'

    if shutil.which(nv_debug_command) is None:
        if opt_debug:
            print(nv_debug_command, "does not exist.")
        return

    env = os.environ.copy()
    if not keep_locale:
        env['LC_MESSAGES'] = 'C'

    # output result to temp directory
    nv_tempdir = tempfile.mkdtemp()
    nv_debug_file = 'nvidia-bug-report'
    nv_debug_fullfile = os.path.join(nv_tempdir, nv_debug_file)
    nv_debug_cmd = [nv_debug_command, '--output-file', nv_debug_fullfile]
    try:
        with open(os.devnull, 'w') as devnull:
            subprocess.run(nv_debug_cmd, env=env, stdout=devnull,
                           stderr=devnull)
            nv_debug_fullfile_gz = nv_debug_fullfile + ".gz"
            hookutils.attach_file_if_exists(report, nv_debug_fullfile_gz,
                                            'nvidia-bug-report.gz')
            os.unlink(nv_debug_fullfile_gz)
            os.rmdir(nv_tempdir)
    except OSError as e:
        print("Error:", str(e))
        print("Fail on cleanup", nv_tempdir, ". Please file a bug for it.")


def dot():
    print(".", end="", flush=True)


def build_packages():
    # related packages
    packages = ['apt', 'grub2']

    # display
    packages.append('xorg')
    packages.append('gnome-shell')

    # audio
    packages.append('alsa-base')

    # hotkey and hotplugs
    packages.append('udev')

    # networking issues
    packages.append('network-manager')

    return packages


def helper_url_credential_filter(string_with_urls):
    return re.sub(r"://\w+?:\w+?@", "://USER:SECRET@", string_with_urls)


def add_info(report):
    # Check if the DCD file is exist in the installer.
    attach_command_output(report, ['ubuntu-report', 'show'], 'UbuntuReport')
    dot()
    hookutils.attach_file_if_exists(report, '/etc/buildstamp', 'BuildStamp')
    dot()
    attach_pathglob_as_zip(report,
                           ['/sys/firmware/acpi/tables/*',
                            '/sys/firmware/acpi/tables/*/*'],
                           "acpitables")
    dot()

    # Basic hardare information
    hookutils.attach_hardware(report)
    dot()
    hookutils.attach_wifi(report)
    dot()

    hwe_system_commands = {'lspci--xxxx': ['lspci', '-xxxx'],
                           'lshw.json': ['lshw', '-json', '-numeric'],
                           'dmidecode': ['dmidecode'],
                           'fwupdmgr_get-devices': ['fwupdmgr', 'get-devices',
                                                    '--show-all-devices',
                                                    '--no-unreported-check'],
                           'boltctl-list': ['boltctl', 'list'],
                           'mokutil---sb-state': ['mokutil', '--sb-state'],
                           'tlp-stat': ['tlp-stat']
                           }
    for name in hwe_system_commands:
        attach_command_output(report, hwe_system_commands[name], name)
        dot()

    # More audio related
    hookutils.attach_alsa(report)
    dot()
    audio_system_commands = {'pactl-list': ['pactl', 'list'],
                             'aplay-l': ['aplay', '-l'],
                             'aplay-L': ['aplay', '-L'],
                             'arecord-l': ['arecord', '-l'],
                             'arecord-L': ['arecord', '-L']
                             }
    for name in audio_system_commands:
        attach_command_output(report, audio_system_commands[name], name)
        dot()
    attach_pathglob_as_zip(report, ['/usr/share/alsa/ucm/*/*'], "ALSA-UCM")
    dot()

    # FIXME: should be included in xorg in the future
    gfx_system_commands = {'glxinfo': ['glxinfo'],
                           'xrandr': ['xrandr'],
                           'xinput': ['xinput']
                           }
    for name in gfx_system_commands:
        attach_command_output(report, gfx_system_commands[name], name)
        dot()
    attach_pathglob_as_zip(report, ['/sys/devices/*/*/drm/card?/*/edid'],
                           "EDID")
    dot()

    # nvidia-bug-reports.sh
    attach_nvidia_debug_logs(report)
    dot()

    # FIXME: should be included in thermald in the future
    attach_pathglob_as_zip(report,
                           ["/etc/thermald/*",
                            "/sys/devices/virtual/thermal/*",
                            "/sys/class/thermal/*"], "THERMALD")
    dot()

    # all kernel and system messages
    attach_pathglob_as_zip(report, ["/var/log/*", "/var/log/*/*"], "VAR_LOG")
    dot()

    # apt configs
    attach_pathglob_as_zip(report, [
        "/etc/apt/apt.conf.d/*",
        "/etc/apt/sources.list",
        "/etc/apt/sources.list.d/*.list",
        "/etc/apt/preferences.d/*"], "APT_CONFIGS",
        type="a", data_filter=helper_url_credential_filter)
    dot()

    # TODO: debug information for suspend or hibernate

    # packages installed.
    attach_command_output(report, ['dpkg', '-l'], 'dpkg-l')
    dot()

    # FIXME: should be included in bluez in the future
    attach_command_output(report, ['hciconfig', '-a'], 'hciconfig-a')
    dot()

    # FIXME: should be included in dkms in the future
    attach_command_output(report, ['dkms', 'status'], 'dkms_status')
    dot()

    # enable when the feature to include data from package hooks exists.
    # packages = build_packages()
    # attach_related_packages(report, packages)


if __name__ == '__main__':
    from argparse import ArgumentParser
    import gzip

    parser = ArgumentParser(prog="oem-getlogs",
                            usage="Useage: sudo -E oem-getlogs [-c CASE_ID]",
                            description="Get Hardware Enablement related logs")
    parser.add_argument("-c", "--case-id", help="optional CASE_ID", dest="cid",
                        default="")
    args = parser.parse_args()

    # check if we got root permission
    if os.geteuid() != 0:
        print("Error: you need to run this program as root")
        parser.print_help()
        sys.exit(1)

    print("Start to collect logs: ", end="", flush=True)
    # create report
    report = apport.Report()
    add_info(report)

    # generate filename
    hostname = os.uname()[1]
    date_time = time.strftime("%Y%m%d%H%M%S%z", time.localtime())
    filename_lst = ["oemlogs", hostname]
    if (len(args.cid) > 0):
        filename_lst.append(args.cid)
    filename_lst.append(date_time + ".apport.gz")
    filename = "-".join(filename_lst)

    with gzip.open(filename, 'wb') as f:
        report.write(f)
    print("\nSaved log to", filename)
    print("The owner of the file is root. You might want to")
    print("    chown [user].[group]", filename)
