----
-- File::			%RS_TOOLSLIB%/util/ragebuilder/build_rpf.rbs
-- Description::	Build RPF file from a directory.
--
-- Author::			David Muir <david.muir@rockstarnorth.com>
-- Date::			24 June 2011
--
-- Example Usage:
--   (simple, just specify files on command line)
--
--   ragebuilder_0378 %RS_TOOLSLIB%\util\ragebuilder\build_rpf.rbs 
--     -output x:\test.rpf 
--     -platform xenon  
--     infile1.txt infile2.bmp
--
--   OR
--
--   (using filelist input file, only way for directories to exist)
--
--   ragebuilder_0378 %RS_TOOLSLIB%\util\ragebuilder\build_rpf.rbs 
--     -output x:\test.rpf 
--     -platform xenon  
--     -filelist filelist.txt
--

-----------------------------------------------------------------------------
-- Uses
-----------------------------------------------------------------------------
local shader = get_param( "shader" )
local shaderdb = get_param( "shaderdb" )
local platform = get_param( "platform" )
local output_filename = get_param( "output" )
local file_index = 5
local file_list = get_param( "filelist" )
local show_help = get_param( "info" )
local taskname = get_param( "taskname" )
local noshaders = get_param( "noshaders" )

-----------------------------------------------------------------------------
-- Functions
-----------------------------------------------------------------------------

function help( )
	display( "" )
	display( get_parambyindex(0) .. " build_rpf.rbs <options>" )
	display( "" )
	display( "\noptions:" )
	display( "\t-output <filename>" )
	display( "\t[-taskname <name>]" )
	display( "\t  Asset Pipeline 3, for log parsing" )
	display( "\t[-platform target]" )
	display( "\t  Where target is win32|ps3|xenon." )
	display( "\t[-filelist <textfile>]" ) 
	display( "\t  Where textfile is a textfile of tab separated source, destination pairs." )
	display( "\t<filelist>" )
	display( "\t  Simple RPF build when -filelist is not specified." )
	display( "\t[-noshaders]")
	display( "\t  Don't set a shader path" )
	display( "" )
	return 0
end

-----------------------------------------------------------------------------
-- Parameter Checking
-----------------------------------------------------------------------------

if ( nil == noshaders) then 
	set_shaderpath( shader )
	set_shaderdbpath( shaderdb )
end

if ( nil ~= show_help ) then
	return help()
end

if ( nil == file_list ) then
	file_index = file_index + 1
end
if ( get_paramcount() < 5 ) then
	error( "No filelist or files specified on command line.  Aborting." )
	return 1
end
if ( nil == output_filename ) then
	error( "No output file specified on command line.  Aborting." )
	return 1
end
if ( nil == platform ) then
	set_platform( "independent" )
	warning( "No platform specified; autodetected at compression stage." )
else
	set_platform( platform )
end

if ( taskname ~= nil ) then
	display( "TASK: " .. taskname )
end

-----------------------------------------------------------------------------
-- Main
-----------------------------------------------------------------------------

if ( "xenon" == platform ) then
	start_pack_xcompress( )
elseif ( ( "ps3" == platform ) or ( "win32" == platform ) ) then
	start_pack_zlib( )
else
	start_pack( )
end

-- Handle case where we have been specified a file list; only way to alter
-- paths used in an RPF.
if ( nil == file_list ) then

	-- Loop through our command-line parameters; assuming they are files.
	for i = file_index, get_paramcount()-1 do

		filename = get_parambyindex( i )
		add_to_pack( filename, get_filename_from_path( filename ) )
	end

else
	input_files = {}
	output_files = {}
	local index = 0
	-- display( "Reading inputs from ".. file_list);
	for line in io.lines( file_list ) do
	
		local sep_index = string.find( line, "\t" )
		if ( nil == sep_index ) then
			-- if no tab, assume intput and output are the same
			table.insert( input_files, line )
			table.insert( output_files, line )
		else
			local len = string.len( line )
			local src = string.sub( line, 1, sep_index - 1 )
			local dst = string.sub( line, sep_index + 1 )
		
			table.insert( input_files, src )
			table.insert( output_files, dst )
		end
		index = index + 1
	end

	display( "Creating RPF with " .. table.getn( input_files ) .. " entries." )

	-- Loop through our filelist pairs.
	for n = 1, table.getn( input_files ) do
		add_to_pack( input_files[n], output_files[n] )
	end
end

save_pack( output_filename )
close_pack( )

-- %RS_TOOLSLIB%/util/ragebuilder/build_rpf.rbs