#!/usr/bin/lua

TYPE_INT = 1
TYPE_STR = 2
TYPE_FILE = 3

consts = require('consts')

debug_mode = false

--check if version is supported
--why 5.3? utf8 and 64bit support
if (_VERSION ~= "Lua 5.3" ) then
	print "Wrong lua versions"
	print "Supported 5.3 only"
	os.exit(1)
end

config_file = nil
output_file = nil
for k,v in ipairs( arg ) do
	if v == "-c" then
		config_file = arg[k+1]
	elseif v == "-o" then
		output_file = arg[k+1]
	end
end
if (config_file == nil) or (output_file == nil) then
	print("I need at leas one argument")
	os.exit(1)
end

print("Config file " .. config_file .. " loaded")

cfg = require( config_file )
of = io.open( output_file .. ".c", "w" )

of:write( consts.implement_start( output_file .. ".h" ) )

--generate list of params
local getopt_p = "" 
for k,v in ipairs( cfg.params_list ) do
	if v ~= nil then
		getopt_p = getopt_p .. v.shortopt
	end
end
of:write( consts.getopt_start( getopt_p ) )

for k,v in ipairs( cfg.params_list ) do
	if v.type == TYPE_INT then
		of:write( consts.getopt_int( v ) )
	elseif v.type == TYPE_STR then
		of:write( consts.getopt_string( v ))
	elseif v.type == TYPE_FILE then
		of:write( consts.getopt_file( v ))
	end
end

of:write( consts.getopt_end() )

of:write( consts.implement_end() )

of:close()

hf = io.open( output_file .. ".h", "w")
hf:write( consts.header_def_start( string.upper( cfg.project_name ) ) )
hf:write( consts.header_def_end( ) )
hf:close()