#!/bin/bash
# Some variables
BASEURL="https://svn.freepascal.org/svn/projects/pas2js/"

function info {
  echo "Info: $*"
}

function usage {
  echo "usage $0 [options] [FPC [SVN]]"
  echo '-c compiler        set compiler to use'
  echo '-d directory       set base directory for checkout'
  echo '-h help            this help message'
  echo '-o OPTS            extra compiler options'
  echo '-z URL             set url for checkout. Can be relative to pas2js repo'
}
function doCompile {
  info "Compiler command line: $*"
  $FPC $*
}
set -e
while test $# != 0 
do
  f=$1
  case $f in
    '-c') shift
          FPC="$1";;
    '-d') shift
          DIR="$1";;
    '-z') shift
          SVN="$1";;
    '-o') shift
          EXTRAOPTS="$1";;
    '-h') usage
          exit;; 
    *) 
      if [ -z "$FPC" ]; then
        FPC=$1
      else 
        if [ -z "$SVN" ]; then
          SVN=$1
        else
          usage 
        fi
      fi
  esac
  shift
done
#
# Collect some info , set defaults
#
info FPC $FPC
info SVN $SVN
info DIR $DIR
if [ -z "$FPC" ]; then
  FPC=fpc
fi
if [ -z "$SVN" ]; then
  SVN=${BASEURL}trunk
else 
  PROT=$(echo $SVN |  sed -n '/.*:\/\//p')
  if [ -z "$PROT" ]; then
    SVN="${BASEURL}${SVN}"
  fi
fi
if [ -z "$DIR" ]; then
  DIR=$TMP
  if [ -z "$DIR" ]; then
    DIR=$TEMP
  fi
  if [ -z "$DIR" ]; then  
    DIR=~/tmp
  fi
fi

FPCVER=$($FPC -iV)
FPCVER30=$(echo $FPCVER | grep '3.0')
FPCCPU=$($FPC -iTP)
#
# Get started
#
info "SVN URL: $SVN"
info "Compiler version: $FPCVER"
info "Base directory: $DIR"
info ""
info ""
#
# Change to base dir
#
info Changing directory to base dir $DIR
mkdir -p $DIR
cd $DIR
if [ -d daily ]; then
  info Removing previous dir
  rm -rf daily
fi
#
# Export sources
#
info "Exporting SVN $SVN to $DIR/daily"
svn export -q $SVN daily
BUILDDIR="$DIR/daily"
PKGDIR="$BUILDDIR/compiler/packages"
UNITPATH="$PKGDIR/fcl-js/src/;$PKGDIR/fcl-json/src/;$PKGDIR/fcl-passrc/src/;$PKGDIR/pastojs/src/"
if [ ! -z "$FPCVER30" ]; then
  UNITPATH="${UNITPATH};$PKGDIR/compat"
fi
OPTS="-B -O1 -Scghi -v0 -ve $EXTRAOPT"
if [ "$FPCCPU" = "x86_64" ]; then
  LIBOPT="-fPIC"
fi
COMPDIR=$BUILDDIR/compiler/utils/pas2js
BINDIR=$BUILDDIR/bin/
OUTDIR=$BUILDDIR/output
if [ -d "$BINDIR" ]; then
  info Removing previous binaries from "$BINDIR"
  rm -rf "$BINDIR"/*
else
  info Creating output dir "$BINDIR"
  mkdir -p "$BINDIR"
fi
if [ -d "$OUTDIR" ]; then
  info Removing previous binaries from "$OUTDIR"
  rm -rf "$OUTDIR"/*
else
  info Creating output dir "$OUTDIR"
  mkdir -p "$OUTDIR"
fi

# pas2js
info
info Build pas2js in $COMPDIR
info "---"
cd "$COMPDIR"
doCompile -Fu"$UNITPATH" $OPTS -FE$OUTDIR pas2js.pp
strip $OUTDIR/pas2js
info Copying to build dir.
cp $OUTDIR/pas2js $BINDIR/

# libpas2js
info ""
info Build libpas2js in $COMPDIR
info "---"
cd "$COMPDIR"
doCompile -Fu"$UNITPATH" $OPTS $LIBOPT -FE$OUTDIR pas2jslib.pp
strip $OUTDIR/libpas2jslib.so
info Copying to build dir.
cp $OUTDIR/libpas2jslib.so $BINDIR/

# compileserver
if [ ! -z "$FPCVER30" ]; then
  info ""
  info Version 3.0.x detected: Skipping compileserver build.
  info "---"
else
  info ""
  info Build compileserver in $COMPDIR
  info "---"
  cd "$COMPDIR"
  doCompile -Fu"$UNITPATH" $OPTS -FE$OUTDIR compileserver.pp
  strip $OUTDIR/compileserver
  info Copying to build dir.
  cp $OUTDIR/compileserver $BINDIR/
fi

# webidl
info ""
info Build webidl2pas in $COMPDIR
info "---"
cd "$COMPDIR"
doCompile -Fu"$UNITPATH" $OPTS -FE$OUTDIR -Fu$PKGDIR/webidl/src webidl2pas.pp
strip $OUTDIR/webidl2pas
info Copying to build dir.
cp $OUTDIR/webidl2pas $BINDIR/
# all done
info Compiled binaries:
ls -l $BINDIR

info Build demos in $snvdir/demo without webcompiler
cd "$BUILDDIR/demo"
make SKIPWEBCOMPILER=1  P2JS=$BUILDDIR/output/pas2js

info Build webcompiler in demos dir
cd "$BUILDDIR/demo"
make demowebcompiler P2JS=$BUILDDIR/output/pas2js