#!/bin/sh

# Default values

prefix="/usr/local"
bindir="$prefix/bin"
sharedir="$prefix/share/imapfilter"
mandir="$prefix/man"

ssltls="yes"
crammd5="yes"

incdirs="-I/usr/local/include"
libdirs="-L/usr/local/lib"

mycflags="$CFLAGS -Wall -O"
myldflags="$LDFLAGS"

libs="-lm -llua -lpcre"
libssl="-lssl"
libcrypto="-lcrypto"

defs="-DMAKEFILE_SHAREDIR='\"\$(SHAREDIR)\"'"

bin="imapfilter"


# Get options and arguments

while getopts "d:p:b:s:m:o:h" opt
do
  case $opt in
  d | p)
    prefix=$OPTARG
    bindir=$prefix/bin
    sharedir=$prefix/share/imapfilter
    mandir=$prefix/man
    ;;
  b)
    bindir=$OPTARG
    ;;
  s)
    sharedir=$OPTARG
    ;;
  m)
    mandir=$OPTARG
    ;;
  o)
    head=`echo $OPTARG | cut -d= -f1`
    body=`echo $OPTARG | cut -d= -f2`
    if [ $head = "ssltls" ]
    then
      if [ $body = "yes" ]; then ssltls="yes"
      elif [ $body = "no" ]; then ssltls="no"
      fi
    elif [ $head = "crammd5" ]
    then
      if [ $body = "yes" ]; then crammd5="yes"
      elif [ $body = "no" ]; then crammd5="no"
      fi
    fi  
    ;;
  h | *)
    cat << EOF
Usage:
  configure [-h] [-p prefix] [-b bindir] [-s sharedir] [-m mandir]
            [-o option=argument]

Description:
  -h			This brief usage and description message.
  -p prefix		Installation path for program's files [$prefix]
  -b bindir		Installation path for binaries [$bindir]
  -s sharedir		Installation path for libraries [$sharedir]
  -m mandir		Installation path for manual pages [$mandir]
  -o option=argument	Enabling/disabling of program's compilation options.

Options:
  ssltls		Secure Socket Layer and Transport Layer Security \
[$ssltls]
  crammd5		Challenge-Response Authentication Mechanism [$crammd5]
EOF
    exit 1
    ;;
  esac
done


# Print values

cat << EOF
Installation directory:					$prefix
Binaries directory:					$bindir
Architecture independent libraries:			$sharedir
Manual pages directory:					$mandir
Secure Socket Layer and Transport Layer Security:	$ssltls
Challenge-Response Authentication Mechanism:		$crammd5
EOF


# Defines

if [ $ssltls = "no" ]
then
  defs="$defs -DNO_SSLTLS"
fi

if [ $crammd5 = "no" ]
then	
  defs="$defs -DNO_CRAMMD5"
fi


# Libraries

if [ $ssltls = "yes" ]
then
  libs="$libs $libssl $libcrypto"
elif [ $crammd5 = "yes" ]
then
  libs="$libs $libcrypto"
fi


# Binary name

uname -a | grep -qi cygwin
if [ $? = 0 ]
then
  bin="imapfilter.exe"
fi


# Change to the source directory
cd src


# Backup of original Makefile

if [ ! -f .Makefile ]; then cp -f Makefile .Makefile; fi


# Write Makefile

mv -f Makefile Makefile~

cat > Makefile << EOF
DESTDIR =
BINDIR = $bindir
SHAREDIR = $sharedir
MANDIR = $mandir

INCDIRS = $incdirs
LIBDIRS = $libdirs

MYCFLAGS = $mycflags
MYLDFLAGS = $myldflags

DEFS = $defs

CFLAGS = \$(MYCFLAGS) \$(DEFS) \$(INCDIRS)
LDFLAGS = \$(MYLDFLAGS) \$(LIBDIRS)

LIBS = $libs

MAN_BIN = imapfilter.1
MAN_CONFIG = imapfilter_config.5

COMMON_LUA = common.lua
SET_LUA = set.lua
REGEX_LUA = regex.lua
ACCOUNT_LUA = account.lua
MAILBOX_LUA = mailbox.lua
MESSAGE_LUA = message.lua
OPTIONS_LUA = options.lua
AUXILIARY_LUA = auxiliary.lua
DEPRECATED_LUA = deprecated.lua

BIN = $bin
OBJ = auth.o buffer.o cert.o core.o file.o imap.o imapfilter.o list.o log.o \\
	lua.o memory.o misc.o namespace.o pcre.o regexp.o request.o \\
	response.o session.o signal.o socket.o system.o

all: \$(BIN)

\$(BIN): \$(OBJ)
	\$(CC) -o \$(BIN) \$(LDFLAGS) \$(OBJ) \$(LIBS)

\$(OBJ): imapfilter.h
buffer.o imap.o imapfilter.o namespace.o request.o response.o: buffer.h
cert.o file.o imapfilter.o log.o lua.o: pathnames.h
imapfilter.o log.o session.o: list.h
imapfilter.o regexp.o response.o: regexp.h
auth.o cert.o imap.o imapfilter.o log.o request.o response.o session.o \\
	socket.o: session.h
imapfilter.o: version.h

install: \$(BIN)
	if test ! -d \$(DESTDIR)\$(BINDIR); then \\
		mkdir -p \$(DESTDIR)\$(BINDIR); fi
	cp -f \$(BIN) \$(DESTDIR)\$(BINDIR) && \\
		chmod 0755 \$(DESTDIR)\$(BINDIR)/\$(BIN)
	if test ! -d \$(DESTDIR)\$(SHAREDIR); then \\
		mkdir -p \$(DESTDIR)\$(SHAREDIR); fi
	cp -f \$(COMMON_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(COMMON_LUA)
	cp -f \$(SET_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(SET_LUA)
	cp -f \$(REGEX_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(REGEX_LUA)
	cp -f \$(ACCOUNT_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(ACCOUNT_LUA)
	cp -f \$(MAILBOX_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(MAILBOX_LUA)
	cp -f \$(MESSAGE_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(MESSAGE_LUA)
	cp -f \$(OPTIONS_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(OPTIONS_LUA)
	cp -f \$(AUXILIARY_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(AUXILIARY_LUA)
	cp -f \$(DEPRECATED_LUA) \$(DESTDIR)\$(SHAREDIR) && \\
		chmod 0644 \$(DESTDIR)\$(SHAREDIR)/\$(DEPRECATED_LUA)
	if test ! -d \$(DESTDIR)\$(MANDIR)/man1; then \\
		mkdir -p \$(DESTDIR)\$(MANDIR)/man1; fi
	cp -f ../doc/\$(MAN_BIN) \$(DESTDIR)\$(MANDIR)/man1 && \\
		chmod 0644 \$(DESTDIR)\$(MANDIR)/man1/\$(MAN_BIN)
	if test ! -d \$(DESTDIR)\$(MANDIR)/man5; then \\
		mkdir -p \$(DESTDIR)\$(MANDIR)/man5; fi
	cp -f ../doc/\$(MAN_CONFIG) \$(DESTDIR)\$(MANDIR)/man5 && \\
		chmod 0644 \$(DESTDIR)\$(MANDIR)/man5/\$(MAN_CONFIG)

deinstall:
	rm -f \$(DESTDIR)\$(BINDIR)/\$(BIN) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(COMMON_LUA) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(SET_LUA) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(REGEX_LUA) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(ACCOUNT_LUA) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(MAILBOX_LUA) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(MESSAGE_LUA) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(OPTIONS_LUA) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(AUXILIARY_LUA) \\
		\$(DESTDIR)\$(SHAREDIR)/\$(DEPRECATED_LUA) \\
		\$(DESTDIR)\$(MANDIR)/man1/\$(MAN_BIN) \\
		\$(DESTDIR)\$(MANDIR)/man5/\$(MAN_CONFIG)

uninstall: deinstall

clean:
	rm -f \$(OBJ) \$(BIN) imapfilter.core core *.orig *.BAK *~

distclean: clean
	@if test -f .Makefile; then mv -f .Makefile Makefile; fi
EOF


exit 0