#!/bin/sh

UNAME=$(uname)
if [ "`echo $UNAME | grep Linux`" ]; then
   EXE="so"
elif [ "`echo $UNAME | grep BSD`" ]; then
   EXE="so"
elif [ "`echo $UNAME | grep Darwin`" ]; then
   EXE="dylib"
elif [ "`echo $UNAME | grep -i MINGW`" ]; then
   EXE="dll"
else
   EXE="so"
fi

# BSDs don't have readlink -f
read_link()
{
   TARGET_FILE="$1"
   cd $(dirname "$TARGET_FILE")
   TARGET_FILE=$(basename "$TARGET_FILE")

   while [ -L "$TARGET_FILE" ]
   do
      TARGET_FILE=$(readlink "$TARGET_FILE")
      cd $(dirname "$TARGET_FILE")
      TARGET_FILE=$(basename "$TARGET_FILE")
   done

   PHYS_DIR=$(pwd -P)
   RESULT="$PHYS_DIR/$TARGET_FILE"
   echo $RESULT
}

SCRIPT=$(read_link "$0")
echo "Script: $SCRIPT"
BASE_DIR=$(dirname "$SCRIPT")
RARCH_DIR=""$BASE_DIR"/dist"
RARCH_DIST_DIR="$RARCH_DIR/pc"

if [ -z "$JOBS" ]; then
   JOBS=4
fi

die()
{
   echo $1
   #exit 1
}

ARCH=$(uname -m)
X86=false
X86_64=false
ARM=false
ARMV5=false
ARMV6=false
ARMV7=false
if [ $ARCH = x86_64 ]; then
   echo "x86_64 CPU detected"
   X86=true
   X86_64=true
elif [ $ARCH = i686 ]; then
   echo "x86_32 CPU detected"
   X86=true
elif [ $ARCH = armv5tel ]; then
   echo "ARMv5 CPU detected"
   ARM=true
   ARMV5=true
elif [ $ARCH = armv6l ]; then
   echo "ARMv6 CPU detected"
   ARM=true
   ARMV6=true
elif [ $ARCH = armv7l ]; then
   echo "ARMv7 CPU detected"
   ARM=true
   ARMV7=true
fi

if [ -z "$CC" ]; then
   CC=gcc
fi

build_libretro_bsnes()
{
   cd "$BASE_DIR"
   if [ -d "libretro-bsnes/perf" ]; then
      echo "=== Building bSNES performance ==="
      cd libretro-bsnes/perf/higan
      make compiler="$CC" ui=target-libretro profile=performance -j$JOBS clean || die "Failed to clean bSNES performance core"
      make compiler="$CC" ui=target-libretro profile=performance -j$JOBS || die "Failed to build bSNES performance core"
      cp -f out/libretro.${EXE} "$RARCH_DIST_DIR"/libretro-bsnes-performance.${EXE}
   else
      echo "bSNES performance not fetched, skipping ..."
   fi

   cd "$BASE_DIR"
   if [ -d "libretro-bsnes/balanced" ]; then
      echo "=== Building bSNES balanced ==="
      cd libretro-bsnes/balanced/higan
      make compiler="$CC" ui=target-libretro profile=balanced -j$JOBS clean || die "Failed to clean bSNES balanced core"
      make compiler="$CC" ui=target-libretro profile=balanced -j$JOBS || die "Failed to build bSNES balanced core"
      cp -f out/libretro.${EXE} "$RARCH_DIST_DIR"/libretro-bsnes-balanced.${EXE}
   else
      echo "bSNES compat not fetched, skipping ..."
   fi

   cd "$BASE_DIR"
   if [ -d "libretro-bsnes" ]; then
      echo "=== Building bSNES accuracy ==="
      cd libretro-bsnes/higan
      make compiler="$CC" ui=target-libretro profile=accuracy -j$JOBS clean || die "Failed to clean bSNES accuracy core"
      make compiler="$CC" ui=target-libretro profile=accuracy -j$JOBS || die "Failed to build bSNES accuracy core"
      cp -f out/libretro.${EXE} "$RARCH_DIST_DIR"/libretro-bsnes-accuracy.${EXE}
   fi
}

build_libretro_mednafen()
{
   cd "$BASE_DIR"
   if [ -d "libretro-mednafen" ]; then
      echo "=== Building Mednafen ==="
      cd libretro-mednafen

      for core in psx pce-fast wswan ngp gba snes vb
      do
         make core=${core} -j$JOBS clean || die "Failed to clean mednafen/${core}"
         make core=${core} -j$JOBS || die "Failed to build mednafen/${core}"
         cp mednafen_$(echo ${core} | tr '[\-]' '[_]')_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-mednafen-${core}.${EXE}
      done
   else
      echo "Mednafen not fetched, skipping ..."
   fi
}

build_libretro_mame078()
{
   cd $BASE_DIR
   if [ -d "libretro-mame078" ]; then
      echo "=== Building MAME 0.78 ==="
      cd libretro-mame078

      make -j$JOBS clean || die "Failed to clean MAME 0.78"
      make -j$JOBS || die "Failed to build MAME 0.78"
      cp mame078_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-mame078.${EXE}
   else
      echo "MAME 0.78 not fetched, skipping ..."
   fi
}

build_libretro_s9x()
{
   cd "$BASE_DIR"
   if [ -d "libretro-s9x" ]; then
      echo "=== Building SNES9x ==="
      cd libretro-s9x/libretro
      make -j$JOBS clean || die "Failed to clean SNES9x"
      make -j$JOBS || die "Failed to build SNES9x"
      cp libretro.${EXE} "$RARCH_DIST_DIR"/libretro-snes9x.${EXE}
   else
      echo "SNES9x not fetched, skipping ..."
   fi
}

build_libretro_s9x_next()
{
   cd "$BASE_DIR"
   if [ -d "libretro-s9x-next" ]; then
      echo "=== Building SNES9x-Next ==="
      cd libretro-s9x-next/
      make -f Makefile.libretro -j$JOBS clean || die "Failed to clean SNES9x-Next"
      make -f Makefile.libretro -j$JOBS || die "Failed to build SNES9x-Next"
      cp snes9x_next_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-snes9x-next.${EXE}
   else
      echo "SNES9x-Next not fetched, skipping ..."
   fi
}

build_libretro_genplus()
{
   cd "$BASE_DIR"
   if [ -d "libretro-genplus" ]; then
      echo "=== Building Genplus GX ==="
      cd libretro-genplus/
      make -f Makefile.libretro -j$JOBS clean || die "Failed to clean Genplus GX"
      make -f Makefile.libretro -j$JOBS || die "Failed to build Genplus GX"
      cp genesis_plus_gx_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-genplus.${EXE}
   else
      echo "Genplus GX not fetched, skipping ..."
   fi
}

build_libretro_fba()
{
   cd "$BASE_DIR"
   if [ -d "libretro-fba" ]; then
      echo "=== Building Final Burn Alpha ==="
      cd libretro-fba/
      cd svn-current/trunk
      make -f makefile.libretro clean || die "Failed to clean Final Burn Alpha"
      make -f makefile.libretro -j$JOBS || die "Failed to build Final Burn Alpha"
      cp fb_alpha_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-fba.${EXE}
   else
      echo "Final Burn Alpha not fetched, skipping ..."
   fi
}

build_libretro_vba()
{
   cd "$BASE_DIR"
   if [ -d "libretro-vba" ]; then
      echo "=== Building VBA-Next ==="
      cd libretro-vba/
      make -f Makefile.libretro -j$JOBS clean || die "Failed to clean VBA-Next"
      make -f Makefile.libretro -j$JOBS || die "Failed to build VBA-Next"
      cp vba_next_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-vba.${EXE}
   else
      echo "VBA-Next not fetched, skipping ..."
   fi
}

build_libretro_bnes()
{
   cd "$BASE_DIR"
   if [ -d "libretro-bnes" ]; then
      echo "=== Building bNES ==="
      cd libretro-bnes
      mkdir -p obj
      make -j$JOBS clean || die "Failed to clean bNES"
      make -j$JOBS || die "Failed to build bNES"
      cp libretro.${EXE} "$RARCH_DIST_DIR"/libretro-bnes.${EXE}
   else
      echo "bNES not fetched, skipping ..."
   fi
}

build_libretro_fceu()
{
   cd "$BASE_DIR"
   if [ -d "libretro-fceu" ]; then
      echo "=== Building FCEU ==="
      cd libretro-fceu
      make -C fceumm-code -f Makefile.libretro -j$JOBS clean || die "Failed to clean FCEU"
      make -C fceumm-code -f Makefile.libretro -j$JOBS || die "Failed to build FCEU"
      cp fceumm-code/fceumm_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-fceu.${EXE}
   else
      echo "FCEU not fetched, skipping ..."
   fi
}

build_libretro_gambatte()
{
   cd "$BASE_DIR"
   if [ -d "libretro-gambatte" ]; then
      echo "=== Building Gambatte ==="
      cd libretro-gambatte/libgambatte
      make -f Makefile.libretro -j$JOBS clean || die "Failed to clean Gambatte"
      make -f Makefile.libretro -j$JOBS || die "Failed to build Gambatte"
      cp gambatte_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-gambatte.${EXE}
   else
      echo "Gambatte not fetched, skipping ..."
   fi
}

build_libretro_meteor()
{
   cd "$BASE_DIR"
   if [ -d "libretro-meteor" ]; then
      echo "=== Building Meteor ==="
      cd libretro-meteor/libretro
      make -j$JOBS clean || die "Failed to clean Meteor"
      make -j$JOBS || die "Failed to build Meteor"
      cp libretro.${EXE} "$RARCH_DIST_DIR"/libretro-meteor.${EXE}
   else
      echo "Meteor not fetched, skipping ..."
   fi
}
build_libretro_nx()
{
   cd "$BASE_DIR"
   if [ -d "libretro-nx" ]; then
      echo "=== Building NXEngine ==="
      cd libretro-nx
      make -j$JOBS clean || die "Failed to clean NXEngine"
      make -j$JOBS || die "Failed to build NXEngine"
      cp nxengine_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-nx.${EXE}
   else
      echo "NXEngine not fetched, skipping ..."
   fi
}

build_libretro_prboom()
{
   cd "$BASE_DIR"
   if [ -d "libretro-prboom" ]; then
      echo "=== Building PRBoom ==="
      cd libretro-prboom
      make -j$JOBS clean || die "Failed to clean PRBoom"
      make -j$JOBS || die "Failed to build PRBoom"
      cp prboom_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-prboom.${EXE}
   else
      echo "PRBoom not fetched, skipping ..."
   fi
}

build_libretro_stella()
{
   cd "$BASE_DIR"
   if [ -d "libretro-stella" ]; then
      echo "=== Building Stella ==="
      cd libretro-stella
      make -j$JOBS clean || die "Failed to clean Stella"
      make -j$JOBS  || die "Failed to build Stella"
      cp libretro.${EXE} "$RARCH_DIST_DIR"/libretro-stella.${EXE}
   else
      echo "Stella not fetched, skipping ..."
   fi
}

build_libretro_desmume()
{
   cd "$BASE_DIR"
   if [ -d "libretro-desmume" ]; then
      echo "=== Building Desmume ==="
      cd libretro-desmume
      if [ $X86 = true ]; then
         echo "=== Building Desmume with x86 JIT recompiler ==="
         make -f Makefile.libretro DESMUME_JIT=1 -j$JOBS clean || die "Failed to clean Desmume"
         make -f Makefile.libretro DESMUME_JIT=1 -j$JOBS || die "Failed to build Desmume"
      elif [ $ARMV7 = true ]; then
         echo "=== Building Desmume with ARMv7 JIT recompiler ==="
         make -f Makefile.libretro platform=arm DESMUME_JIT=1 -j$JOBS clean || die "Failed to clean Desmume"
         make -f Makefile.libretro platform=arm DESMUME_JIT=1 -j$JOBS || die "Failed to build Desmume"
      else
         make -f Makefile.libretro -j$JOBS clean || die "Failed to clean Desmume"
         make -f Makefile.libretro -j$JOBS || die "Failed to build Desmume"
      fi
      cp desmume_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-desmume.${EXE}
   else
      echo "Desmume not fetched, skipping ..."
   fi
}

build_libretro_pcsx_rearmed()
{
   cd $BASE_DIR
   pwd
   if [ -d "libretro-pcsx-rearmed" ]; then
      echo "=== Building PCSX ReARMed ==="
      cd libretro-pcsx-rearmed
      if [ $ARMV7 = true ]; then
         echo "=== Building PCSX ReARMed (ARMV7 NEON) ==="
         make -f Makefile.libretro platform=arm -j$JOBS clean || die "Failed to clean PCSX ReARMed"
         make -f Makefile.libretro platform=arm -j$JOBS || die "Failed to build PCSX ReARMed"
      else
         make -f Makefile.libretro -j$JOBS clean || die "Failed to clean PCSX ReARMed"
         make -f Makefile.libretro -j$JOBS || die "Failed to build PCSX ReARMed"
      fi
      cp pcsx_rearmed_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-pcsx-rearmed.${EXE}
   else
      echo "PCSX ReARMed not fetched, skipping ..."
   fi
}

build_libretro_quicknes()
{
   cd "$BASE_DIR"
   if [ -d "libretro-quicknes" ]; then
      echo "=== Building QuickNES ==="
      cd libretro-quicknes/libretro
      make -j$JOBS clean || die "Failed to clean QuickNES"
      make -j$JOBS || die "Failed to build QuickNES"
      cp libretro.${EXE} "$RARCH_DIST_DIR"/libretro-quicknes.${EXE}
   else
      echo "QuickNES not fetched, skipping ..."
   fi
}

build_libretro_nestopia()
{
   cd "$BASE_DIR"
   if [ -d "libretro-nestopia" ]; then
      echo "=== Building Nestopia ==="
      cd libretro-nestopia/libretro
      make -j$JOBS clean || die "Failed to clean Nestopia"
      make -j$JOBS || die "Failed to build Nestopia"
      cp nestopia_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-nestopia.${EXE}
   else
      echo "Nestopia not fetched, skipping ..."
   fi
}

build_libretro_tyrquake()
{
   cd "$BASE_DIR"
   if [ -d "libretro-tyrquake" ]; then
      echo "=== Building Tyr Quake ==="
      cd libretro-tyrquake
      make -f Makefile.libretro -j$JOBS clean || die "Failed to clean Tyr Quake"
      make -f Makefile.libretro -j$JOBS || die "Failed to build Tyr Quake"
      cp tyrquake_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-tyrquake.${EXE}
   else
      echo "Tyr Quake not fetched, skipping ..."
   fi
}

build_libretro_dosbox()
{
   cd $BASE_DIR
   if [ -d "libretro-dosbox" ]; then
      echo "=== Building DOSbox ==="
      cd libretro-dosbox
      make -f Makefile.libretro -j$JOBS clean || die "Failed to clean DOSbox"
      make -f Makefile.libretro -j$JOBS || die "Failed to build DOSbox"
      cp dosbox_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-dosbox.${EXE}
   else
      echo "DOSbox not fetched, skipping ..."
   fi
}

build_libretro_scummvm()
{
   cd $BASE_DIR
   if [ -d "libretro-scummvm" ]; then
      echo "=== Building ScummVM ==="
      cd libretro-scummvm/backends/platform/libretro/build
      make -f Makefile -j$JOBS clean || die "Failed to clean ScummVM"
      make -f Makefile -j$JOBS || die "Failed to build ScummVM"
      cp scummvm_libretro.${EXE} "$RARCH_DIST_DIR"/libretro-scummvm.${EXE}
   else
      echo "ScummVM not fetched, skipping ..."
   fi
}

mkdir -p "$RARCH_DIST_DIR"

if [ $1 ]; then
   $1
else
   build_libretro_desmume
   build_libretro_bsnes
   build_libretro_mednafen
   build_libretro_s9x
   build_libretro_s9x_next
   build_libretro_genplus
   build_libretro_fba
   build_libretro_vba
   build_libretro_bnes
   build_libretro_fceu
   build_libretro_gambatte
   build_libretro_meteor
   build_libretro_nx
   build_libretro_prboom
   build_libretro_stella
   build_libretro_quicknes
   build_libretro_nestopia
   build_libretro_tyrquake
   build_libretro_pcsx_rearmed
   build_libretro_mame078
   build_libretro_dosbox
   build_libretro_scummvm
fi