#!/bin/sh

##########################################################################
#
#This script is used to create API C source file for Aubit libraraies
#to be loaded at run-time using dlopen() function call.
#
#
#
#
#
#
##########################################################################

#Include both headers:
#In file included from console.c:58:
#/opt/aubit/aubit4glsrc/incl/a4gl_API_ui_lib.h:38: warning: redundant redeclaration of `A4GLUI_initlib' in same scope
#/opt/aubit/aubit4glsrc/incl/a4gl_API_ui.h:38: warning: previous declaration of `A4GLUI_initlib'



#Get settings
if [ "$AUBITDIR" != "" ]; then
	. $AUBITDIR/etc/aubitrc
else
	echo "WARNING: AUBITDIR not set"
	echo "ERROR: cannot read settings. STOP."
	exit 3
fi

############################################################################
#						Output API .c code
############################################################################


cat $1 | awk  '
function ring(rtype) {
	if (rtype=="char*") { print "A4GL_debug(\"Returning (%s)\",A4GL_null_as_null(rval));"; return;}
	if (rtype=="void*") { print "A4GL_debug(\"Returning (%p)\",rval);"; return;}
	if (rtype=="int") { print "A4GL_debug(\"Returning '%d'\",rval);"; return;}
	print "A4GL_debug(\"Returning Unknown '%p'\",rval);"
	}
	
	function ping(rtype,name) {
	if (rtype=="char*")  return "(%s))"
	if (rtype=="char")  return "(%c)"
	if (rtype=="void*")  return "%p"
	if (rtype=="va_list*")  return "%p"
	if (rtype=="int") return "%d"
	return "%p" 
	#print "Unknown type : " rtype > "dlmagic.log"
}

function pind(rtype,rname) {
	
	if (rtype=="char*")  return sprintf("A4GL_null_as_null(%s)",rname);
	return rname;
	#print "Unknown type : " rtype > "dlmagic.log"
}



BEGIN {
	FS="[ 	,]+"
	print "/*******************************************************************"
	print "* (c) 1997-2005 Aubit Computing Ltd."
	print "*"
	print "*"
	print "********************************************************************/"
	
	print
	
	
	
	print ""
	print ""
}



/^LIBRARY / {next}
/^VARIABLE / {next}
/^HEADER_FILE / {next}
/^API_PREFIX / {next}
/^LIB_PREFIX / {next}
/MAP / { map[$2]=$3; next}

/^#/ {print
	next
}

/^\// {print
	next
}

/^extern/ {print
	next
}

/^!/ {print substr($0,2); next}

/^ \*/ {print
	next
}
/^\*\// {print
	next
}
/^\*/ {next}
/^$/ {next}

/^[ 	]*$/ {next}



{
	fname=$1
	call_fname=$1
	rtype="void"
	c=0
	for (a=2;a<=NF;a++) {
		param_type[c]=$a
		if (param_type[c]=="->") {
			param_type[c]=""
			a++
			rtype=$a
			break
		}
	
		if (param_type[c]=="...") {
			param_name[c]=""
    			call_fname="internal_"fname
			a++
			c++
			break
		}
	
	
		a++
		param_name[c]=$a
		c++;
	}
	
	
	va_start=""
	args=""
	dargs=""
	debug_args="Call to " rtype " " api_prefix fname "("
	
	for (b=0;b<c;b++) {
		if (param_type[b]=="...") {
			va_start=last;
			args=args ",&ap"
			dargs=dargs ",&ap"
			if (b) debug_args=debug_args "," 
			debug_args=debug_args ping("va_list*",param_name[b]);
		} else {
			if (b) debug_args=debug_args "," 
			debug_args=debug_args ping(param_type[b],param_name[b])
			args=args "," param_name[b]
			dargs=dargs "," pind(param_type[b],param_name[b])
		}
		last=param_name[b]
	}
	args=substr(args,2)
	dargs=substr(dargs,2)
	
	
	funccnt++;
	fnames[funccnt]=fname

	if (c) {
		printf("struct x_call_func_%d {\n",funccnt)
		for (b=0;b<c;b++) {
			xxtype=param_type[b]
			gsub("[*]"," * ",xxtype)
			gsub("  "," ",xxtype)

			if (xxtype=="char * ") { print "   string " param_name[b] "<>;"; continue}
			if (xxtype=="void * ") { xxtype="long"; }
			if (xxtype=="va_list * ") { xxtype="arr"; }
			
			print "   " xxtype " " param_name[b]";"

		}
		param[funccnt]="x_call_func_" funccnt
		print "};"
	} else {
		param[funccnt]="void"
	}
	
	if (rtype=="void") {
			rtypes[funccnt]="void"
	} else {
		if (rtype=="void *") rtype="long";
		if (rtype=="void*") rtype="long";
		if (rtype=="char*") {
				print "typedef string ret_" fname "<>;"
		} else {
				print "typedef " rtype "  ret_" fname ";"
		}
		rtypes[funccnt]="ret_" fname
	}
	print ""
}


END {
	print "program FGL_RPC {"
	print "   version FGL_RPC_VER {"
for (a=1;a<=funccnt;a++) {
		printf ("       %-10s rpc_%-28s (%-15s) = %d;\n", rtypes[a] , fnames[a]  , param[a] ,a )
}
print "  } =1;"
print "}= 0x2005123;"

}

'  > ui_lowlevel.x
#< $specfile


exit