#!/bin/sh
# domake:
# Compile U++ main tools: theide and umk

### Variables

minimum_gcc_dumpversion="4.9.0"
show_debug_info="true"
show_debug_warning="true"
show_debug_error="true"

### Constants

script_name=$(echo "$0" | tr '[:lower:]' '[:upper:]' )

### Function declarations

. ./function_library

convert_version_to_number()
{
  if [ -z "$1" ]
  then
    log_debug_error "Function 'convert_version_to_number' called with empty parameter"
    return 1
  fi
  echo "$1" | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$/&00/'
  return 0
}


### Main script start here

log_debug_info "Searching for g++ compiler"

minimum_gcc_version=$(convert_version_to_number "$minimum_gcc_dumpversion")

if which g++
then
  log_debug_info "Found $(which g++)"
  gcc_dumpversion=$(gcc -dumpversion)
  gcc_version=$(convert_version_to_number "$gcc_dumpversion")

  if [ "$gcc_version" -gt "$minimum_gcc_version" ]
  then
    use_gcc="true"
    
  else
    use_gcc="false"
    log_debug_warning "The g++ compiler found (e.q $gcc_dumpversion) has a lower version than the minimum required version (e.q $minimum_gcc_dumpversion)"

  fi
else
  use_gcc="false"

fi

if [ "$use_gcc" = "false" ]
then
  log_debug_info "Searching for clang++ compiler"
  if which clang++
  then
    use_clang="true"
    
  else
    use_clang="false"
    log_debug_warning "Can't find clang++ compiler in PATH"
    log_debug_error "No compatible c++ compiler found in PATH"
    log_debug "${COLOR_WHITE}SOLUTIONS (a few):${COLOR_NC}"
    log_debug " - Install a compatible gcc-c++ version (> $minimum_gcc_dumpversion)"
    log_debug " - Or install clang++ LLVM compiler"
    log_debug " - Or add clang++ or g++ path to the PATH variable (if clang++ or a g++ compatible version is already installed)"
    exit 1
    
  fi
fi

log_debug_info "Configuring uppsrc/Makefile, uppsrc/uMakefile, GCC.bm and CLANG.bm with pkg-config"

if which pkg-config
then

  library_list=""
  for i in gtk+-2.0 x11 libnotify freetype2
  do
    if pkg-config --exists $i
    then
      library_list="$library_list $i"
      log_debug_info "pkg-config: Found library $i"
    else
      log_debug_warning "pkg-config: '$i' not found in $(pkg-config --variable pc_path pkg-config). Do you need to install $i developpement package?"
    fi
  done
  
  sed -e "s@-I((INCLUDES))@`pkg-config --cflags-only-I $library_list`@g" -e "s@-L\"((LIBRARIES))\"@`pkg-config --libs-only-L $library_list`@g" uppsrc/Makefile.in >uppsrc/Makefile
  sed -e "s@-I((INCLUDES))@`pkg-config --cflags-only-I $library_list`@g" -e "s@-L\"((LIBRARIES))\"@`pkg-config --libs-only-L $library_list`@g" uppsrc/uMakefile.in >uppsrc/uMakefile
  sed -e "s@((INCLUDES))@`pkg-config --cflags-only-I $library_list|sed -e s/-I//g -e \"s/ /;/g\"`@g" -e "s@((LIBRARIES))@`pkg-config --libs-only-L $library_list|sed -e s/-L//g -e \"s/ /;/g\"`@g" GCC.bm.in >GCC.bm
  sed -e "s@((INCLUDES))@`pkg-config --cflags-only-I $library_list|sed -e s/-I//g -e \"s/ /;/g\"`@g" -e "s@((LIBRARIES))@`pkg-config --libs-only-L $library_list|sed -e s/-L//g -e \"s/ /;/g\"`@g" CLANG.bm.in >CLANG.bm

else
  log_debug_warning "Can't find pkg-config in PATH. Will do configuration without it. Compilation will probably fail"
  log_debug_warning "If compilation fail because of missing include, please install pkg-config before reporting"
  sed -e "s@-I((INCLUDES))@@g" -e 's@-L"((LIBRARIES))"@@g' uppsrc/Makefile.in >uppsrc/Makefile
  sed -e "s@-I((INCLUDES))@@g" -e 's@-L"((LIBRARIES))"@@g' uppsrc/uMakefile.in >uppsrc/uMakefile
  sed -e "s@((INCLUDES));@@g" -e "s@((LIBRARIES));@@g" GCC.bm.in >GCC.bm
  sed -e "s@((INCLUDES));@@g" -e "s@((LIBRARIES));@@g" CLANG.bm.in >CLANG.bm

fi

if [ ! -f /usr/lib/libdl.so -a ! -f /usr/lib64/libdl.so ]
then
  sed -i -e s/-ldl//g uppsrc/Makefile
  sed -i -e s/-ldl//g uppsrc/uMakefile
  
fi


log_debug_info "Searching for gmake or make"

if which gmake
then
  make_binary="gmake"
  
elif which make
then
  make_binary="make"

else
  log_debug_error "No 'make' application found in PATH"
  exit 2
fi


log_debug_info "Found $make_binary. Compiling..."

if [ "$use_gcc" = "true" ]
then
  $make_binary -C uppsrc
  $make_binary -C uppsrc -f uMakefile
    
elif [ "$use_clang" = "true" ]
then
    $make_binary -C uppsrc -e CXX="clang++" -e CXXFLAGS="-O3 -ffunction-sections -fdata-sections -Wno-logical-op-parentheses -std=c++11"
    $make_binary -C uppsrc -f uMakefile -e CXX="clang++" -e CXXFLAGS="-O3 -ffunction-sections -fdata-sections -Wno-logical-op-parentheses -std=c++11"
    
fi


if [ -f uppsrc/ide.out ]
then
  log_debug_info "Installing theide in current directory"
  cp -p uppsrc/ide.out ./theide
  
fi

if [ -f uppsrc/umk.out ]
then
  log_debug_info "Installing umk in current directory"
  cp -p uppsrc/umk.out ./umk
  
fi