#!/usr/bin/env python
#
# Copyright (C) 2014  Google Inc.
#
# This file is part of YouCompleteMe.
#
# YouCompleteMe is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# YouCompleteMe is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with YouCompleteMe.  If not, see <http://www.gnu.org/licenses/>.

import os
import ycm_core
import re

# These are the compilation flags that will be used in case there's no
# compilation database set (by default, one is not set).
# CHANGE THIS LIST OF FLAGS. YES, THIS IS THE DROID YOU HAVE BEEN LOOKING FOR.
flags = [
#'-Wall',
'-Wextra',
'-Werror',
'-fexceptions',

# THIS IS IMPORTANT! Without a "-std=<something>" flag, clang won't know which
# language to use when compiling headers. So it will guess. Badly. So C++
# headers will be compiled as C headers. You don't want that so ALWAYS specify
# a "-std=<something>".
# For a C project, you would set this to something like 'c99' instead of
# 'c++11'.

## '-std=gnu11',

# ...and the same thing goes for the magic -x option which specifies the
# language that the files to be compiled are written in. This is mostly
# relevant for c++ headers.
# For a C project, you would set this to 'c' instead of 'c++'.

## '-x', 'c',

'-target','arm-none-abi',
'-mthumb',
'-mcpu=cortex-m3',
'-mfloat-abi=soft',


  '-DLINT',
  '-DWICED_VERSION=\"3.3.1\"',
  '-DBUS=\"SDIO\"',
  '-Ibuild/sprinkl_sr301-FreeRTOS-LwIP-EMW3162-SDIO/resources/',
  #'-DPLATFORM=\"EMW3162\"',
  '-DSR301_MOD_ISM43340CF'
  '-DJSMN_PARENT_LINKS',
  '-U__STRICT_ANSI__',
  '-Wcast-align',
  '-I', './tools/ARM_GNU/include/',
  '-I', './apps/sprinkl/sr301/.',
  '-I', './apps/sprinkl/sr301/protocols/HTTP',
  '-I', './apps/sprinkl/sr301/utilities/JSMN',
  '-I', './apps/sprinkl/sr301/utilities/JSMN_sprinkl',
  '-I', './WICED/platform/MCU/STM32F2xx/peripherals/libraries/.',
  '-I', './WICED/platform/MCU/STM32F2xx/peripherals/libraries//inc',
  '-I', './WICED/platform/MCU/STM32F2xx/peripherals/libraries/../../../../ARM_CM3/CMSIS',
  '-I', './libraries/utilities/ring_buffer/.',
  '-I', './WICED/platform/MCU/STM32F2xx/peripherals/.',
  '-I', './WICED/platform/GCC/.',
  '-I', './WICED/security/BESL/crypto_open/.',
  '-I', './WICED/security/BESL/crypto_open/srp',
  '-I', './libraries/utilities/TLV/.',
  '-I', './libraries/daemons/DHCP_server/.',
  '-I', '././WICED/network/LwIP/WWD/FreeRTOS/.',
  '-I', './libraries/utilities/base64/.',
  '-I', './libraries/utilities/crc/.',
  '-I', '././WICED/platform/MCU/STM32F2xx/.',
  '-I', '././WICED/platform/MCU/STM32F2xx/..',
  '-I', '././WICED/platform/MCU/STM32F2xx/../..',
  '-I', '././WICED/platform/MCU/STM32F2xx/../../include',
  '-I', '././WICED/platform/MCU/STM32F2xx/../../ARM_CM3',
  '-I', '././WICED/platform/MCU/STM32F2xx/../../ARM_CM3/CMSIS',
  '-I', '././WICED/platform/MCU/STM32F2xx/peripherals',
  '-I', '././WICED/platform/MCU/STM32F2xx/WAF',
  '-I', '././WICED/platform/MCU/STM32F2xx/../../../../../apps/waf/bootloader/',
  '-I', './libraries/filesystems/wicedfs/.',
  '-I', '././WICED/WWD/.',
  '-I', '././WICED/WWD/include',
  '-I', '././WICED/WWD/include/network',
  '-I', '././WICED/WWD/include/RTOS',
  '-I', '././WICED/WWD/internal/bus_protocols/SDIO',
  '-I', '././WICED/WWD/internal/chips/43362A2',
  '-I', './libraries/protocols/DNS/.',
  '-I', '././WICED/security/BESL/host/WICED',
  '-I', '././WICED/security/BESL/TLS',
  '-I', '././WICED/security/BESL/crypto',
  '-I', '././WICED/security/BESL/WPS',
  '-I', '././WICED/security/BESL/include',
  '-I', '././WICED/security/BESL/P2P',
  '-I', '././WICED/security/BESL/crypto/homekit_srp',
  '-I', '././WICED/security/BESL/crypto/ed25519',
  '-I', '././WICED/security/BESL/supplicant',
  '-I', './libraries/drivers/spi_flash/.',
  '-I', '././WICED/network/LwIP/WICED/.',
  '-I', '././WICED/network/LwIP/WWD/.',
  '-I', '././WICED/RTOS/FreeRTOS/WICED/.',
  '-I', '././WICED/RTOS/FreeRTOS/WWD/.',
  '-I', '././WICED/RTOS/FreeRTOS/WWD/./EMW3162',
  '-I', '././WICED/RTOS/FreeRTOS/WWD/./ARM_CM3',
  '-I', './libraries/drivers/ext_flash/.',
  '-I', './libraries/utilities/JSMN_sprinkl/.',
  '-I', './libraries/utilities/JSMN_sprinkl/../JSMN/',
  '-I', './libraries/utilities/miniz/.',
  '-I', './libraries/utilities/JSMN/.',
  '-I', './libraries/protocols/mqtt/.',
  '-I', './libraries/protocols/mqtt/mqtt/MQTTPacket/src',
  '-I', './libraries/protocols/HTTP/.',
  '-I', './libraries/protocols/SNTP/.',
  '-I', './libraries/filesystems/spiffs/.',
  '-I', '././WICED/.',
  '-I', './platforms/EMW3162/.',
  '-I', './WICED/network/LwIP/ver1.4.0.rc1',
  '-I', './WICED/network/LwIP/ver1.4.0.rc1/src/include',
  '-I', './WICED/network/LwIP/ver1.4.0.rc1/src/include/ipv4',
  '-I', './WICED/network/LwIP/WICED',
  '-I', './WICED/RTOS/FreeRTOS/ver7.5.2/Source/include',
  '-I', './WICED/RTOS/FreeRTOS/ver7.5.2/Source/portable/GCC/ARM_CM3',
  '-I', './WICED/WWD/internal/chips/43362A2',
  '-I', './libraries',
  '-I', './include',
  '-I', './libraries/drivers/bluetooth_le/include/',

  '-DUSE_STDPERIPH_DRIVER',
  '-D_STM32F205RGT6_',
  '-D_STM3x_',
  '-D_STM32x_',
  '-DMAX_WATCHDOG_TIMEOUT_SECONDS=22',
  '-DFIRMWARE_WITH_PMK_CALC_SUPPORT',
  '-DADD_LWIP_EAPOL_SUPPORT',
  '-DNXD_EXTENDED_BSD_SOCKET_SUPPORT',
  '-DOPENSSL',
  '-DSTDC_HEADERS',
  '-DADD_NETX_EAPOL_SUPPORT',
  '-DWWD_STARTUP_DELAY=10',
  '-DBOOTLOADER_MAGIC_NUMBER=0x4d435242',
  '-DWWD_DIRECT_RESOURCES',
  '-DHSE_VALUE=26000000',
  '-DCRLF_STDIO_REPLACEMENT',
  '-DNETWORK_LwIP=1',
  '-DLwIP_VERSION=\"v1.4.0.rc1\"',
  '-DRTOS_FreeRTOS=1',
  '-DconfigUSE_MUTEXES',
  '-DconfigUSE_RECURSIVE_MUTEXES',
  '-DFreeRTOS_VERSION=\"v7.5.2\"',
  '-DWICED_SDK_WIFI_CONFIG_DCT_H=\"./include/default_wifi_config_dct.h\"',
  '-DWICED_SDK_BT_CONFIG_DCT_H=\"./include/default_bt_config_dct.h\"'

]


# Set this to the absolute path to the folder (NOT the file!) containing the
# compile_commands.json file to use that instead of 'flags'. See here for
# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
#
# Most projects will NOT need to set this to anything; you can just change the
# 'flags' list of compilation flags.
compilation_database_folder = ''

if os.path.exists( compilation_database_folder ):
  database = ycm_core.CompilationDatabase( compilation_database_folder )
else:
  database = None

SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', '.m', '.mm', '.S' ]

def DirectoryOfThisScript():
  return os.path.dirname( os.path.abspath( __file__ ) )


def MakeRelativePathsInFlagsAbsolute( flags, working_directory ):
  if not working_directory:
    return list( flags )
  new_flags = []
  make_next_absolute = False
  path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
  for flag in flags:
    new_flag = flag

    if make_next_absolute:
      make_next_absolute = False
      if not flag.startswith( '/' ):
        new_flag = os.path.join( working_directory, flag )

    for path_flag in path_flags:
      if flag == path_flag:
        make_next_absolute = True
        break

      if flag.startswith( path_flag ):
        path = flag[ len( path_flag ): ]
        new_flag = path_flag + os.path.join( working_directory, path )
        break

    if new_flag:
      new_flags.append( new_flag )
  return new_flags


def IsHeaderFile( filename ):
  extension = os.path.splitext( filename )[ 1 ]
  return extension in [ '.h', '.hxx', '.hpp', '.hh' ]


def GetCompilationInfoForFile( filename ):
  # The compilation_commands.json file generated by CMake does not have entries
  # for header files. So we do our best by asking the db for flags for a
  # corresponding source file, if any. If one exists, the flags for that file
  # should be good enough.
  if IsHeaderFile( filename ):
    basename = os.path.splitext( filename )[ 0 ]
    for extension in SOURCE_EXTENSIONS:
      replacement_file = basename + extension
      if os.path.exists( replacement_file ):
        compilation_info = database.GetCompilationInfoForFile(
          replacement_file )
        if compilation_info.compiler_flags_:
          return compilation_info
    return None
  return database.GetCompilationInfoForFile( filename )


# This is the entry point; this function is called by ycmd to produce flags for
# a file.
def FlagsForFile( filename, **kwargs ):
  if database:
    # Bear in mind that compilation_info.compiler_flags_ does NOT return a
    # python list, but a "list-like" StringVec object
    compilation_info = GetCompilationInfoForFile( filename )
    if not compilation_info:
      return None

    final_flags = MakeRelativePathsInFlagsAbsolute(
      compilation_info.compiler_flags_,
      compilation_info.compiler_working_dir_ )
  else:
    relative_to = DirectoryOfThisScript()
    final_flags = MakeRelativePathsInFlagsAbsolute( flags, relative_to )

  # Add in C or CXX extensions
  print("Filename: ", filename, "\n");
  if  re.search(r'\.(?:cc|cpp|cxx)$', filename):
    final_flags.extend(["-x c++", "--std=c++14"])
    print("CPP FILE!!\n");
  elif re.search(r'\.c$', filename):
    final_flags.extend(["-x c", "--std=c11"])
    print("C file!\n");
  else:
      print("None!!!!!!!!!!!!!!!!!!!!\n");

  #print("Flags are: ", final_flags)

  return {
    'flags': final_flags,
    'do_cache': True
  }
# vim:set tw=0 nowrap :