#!/bin/bash

# This file generates all project files based on sources.list, so everyone who
#  can start a bash process, can update the project files.

ROOT_DIR="`pwd`/.."
if ! [ -e "$ROOT_DIR/source.list" ]
then
	ROOT_DIR="`pwd`"
fi
if ! [ -e "$ROOT_DIR/source.list" ]
then
	echo "Can't find source.list, needed in order to make this run. Please go to either"
	echo " the project dir, or the root dir of a clean SVN checkout."
	exit 1
fi

# openttd_vs90.sln    is for MSVC 2008
# openttd_vs90.vcproj is for MSVC 2008
# langs_vs90.vcproj   is for MSVC 2008
# strgen_vs90.vcproj  is for MSVC 2008

# openttd_vs80.sln    is for MSVC 2005
# openttd_vs80.vcproj is for MSVC 2005
# langs_vs80.vcproj   is for MSVC 2005
# strgen_vs80.vcproj  is for MSVC 2005



# First, collect the list of Windows files
sdl_config="1"
png_config="1"
os="MSVC"
enable_dedicated="0"
with_cocoa="0"
enable_directmusic="1"
with_threads="1"
file_prefix="..\\\\src\\\\"

safety_check() {
	li=""
	for i in `cat $1 | grep -v "#\|ottdres.rc\|win32.cpp\|win32_v.cpp" | xargs -n 1 basename | sort`; do
		if [ "$li" = "$i" ]; then
			echo " !! ERROR !!"
			echo ""
			echo "The filename '$i' is already used in this project."
			echo "Because MSVC uses one single directory for all object files, it"
			echo "cannot handle filenames with the same name inside the same project."
			echo "Please rename either one of the file and try generating again."
			echo ""
			echo " !! ERROR !!"
			exit 1
		fi
		li="$i"
	done
}

grep '\.h' "$ROOT_DIR/source.list" | grep -v '../objs/langs/table/strings.h' | sort > tmp.headers.source.list
find "$ROOT_DIR/src" -iname "*.h*" -and -not -iname "*svn*" -and -not -iname "*.hpp.sq" | sed "s@$ROOT_DIR/src/@@" | sort > tmp.headers.src
if [ -n "`diff tmp.headers.source.list tmp.headers.src`" ]; then
	echo "The following headers are missing in source.list and not in /src/ or vice versa."
	diff tmp.headers.source.list tmp.headers.src | grep '[<>]' | sort
	echo ""
fi
rm tmp.headers.*

load_main_data() {
	# Read the source.list and process it
	RES="`cat $1 | tr '\r' '\n' | awk '
		/^(	*)#end/  { if (deep == skip) { skip -= 1; } deep -= 1; next; }
		/^(	*)#else/ { if (deep == skip) { skip -= 1; } else if (deep - 1 == skip) { skip += 1; } next; }
		/^(	*)#if/   {
			gsub("	", "", $0);
			gsub("^#if", "", $0);
			gsub("^ ", "", $0);

			if (deep != skip) { deep += 1; next; }

			deep += 1;

			if ($0 == "SDL"         && "'$sdl_config'" == "")          { next; }
			if ($0 == "PNG"         && "'$png_config'" == "")          { next; }
			if ($0 == "OSX"         && "'$os'" != "OSX")               { next; }
			if ($0 == "OS2"         && "'$os'" != "OS2")               { next; }
			if ($0 == "PSP"         && "'$os'" != "PSP")               { next; }
			if ($0 == "DEDICATED"   && "'$enable_dedicated'" != "1")   { next; }
			if ($0 == "COCOA"       && "'$with_cocoa'" == "0")         { next; }
			if ($0 == "BEOS"        && "'$os'" != "BEOS")              { next; }
			if ($0 == "WIN32"       && "'$os'" != "MINGW" &&
											"'$os'" != "CYGWIN" && "'$os'" != "MSVC" ) { next; }
			if ($0 == "WINCE"       && "'$os'" != "WINCE")             { next; }
			if ($0 == "MSVC"        && "'$os'" != "MSVC")              { next; }
			if ($0 == "DIRECTMUSIC" && "'$enable_directmusic'" != "1") { next; }
			if ($0 == "LIBTIMIDITY" && "'$libtimidity'" == "" )        { next; }
			if ($0 == "HAVE_THREAD" && "'$with_threads'" == "0")       { next; }

			skip += 1;

			next;
		}
		/^(	*)#/ {
			if (deep == skip) {
				gsub("	", "", $0);
				gsub("^#", "", $0);
				gsub("^ ", "", $0);

				if (first_time != 0) {
					print "		</Filter>";
				} else {
					first_time = 1;
				}

				print "		<Filter";
				print "			Name=\\""$0"\\"";
				print "			>";
			}

			next;
		}
		/^$/ { next }
		{
			if (deep == skip) {
				gsub("	", "", $0);
				gsub("/", "\\\\", $0);
				print "			<File";
				print "				RelativePath=\\".\\\\'$file_prefix'"$0"\\"";
				print "				>";
				print "			</File>";
			}
		}
		END { print "		</Filter>"; }
	'`"

	eval "$2=\"\$RES\""
}

load_lang_data() {
	RES=""
	for i in `ls $1`
	do
		i=`basename $i | sed s/.txt$//g`
		RES="$RES
		<File
			RelativePath=\"..\\src\\lang\\"$i".txt\"
			>
			<FileConfiguration
				Name=\"Debug|Win32\"
				>
				<Tool
					Name=\"VCCustomBuildTool\"
					Description=\"Generating "$i" language file\"
					CommandLine=\"..\\objs\\strgen\\strgen.exe -s ..\\src\\lang -d ..\\bin\\lang &quot;\$(InputPath)&quot;&#x0D;&#x0A;\"
					AdditionalDependencies=\"\"
					Outputs=\"..\\bin\\lang\\"$i".lng\"
				/>
			</FileConfiguration>
		</File>"
	done

	eval "$2=\"\$RES\""
}

generate() {
	echo "Generating $2..."
	# Everything above the !!FILES!! marker
	cat "$ROOT_DIR/projects/$2".in | tr '\r' '\n' | awk '
		/^$/ { next }
		/!!FILES!!/ { stop = 1; }
		{
			if (stop == 0) { print $0 }
		}
	' > "$ROOT_DIR/projects/$2"

	echo "$1" >> "$ROOT_DIR/projects/$2"

	# Everything below the !!FILES!! marker
	cat "$ROOT_DIR/projects/$2".in | tr '\r' '\n' | awk '
		BEGIN { stop = 1; }
		/^$/ { next }
		/!!FILES!!/ { stop = 2; }
		{
			if (stop == 0) { print $0 }
			if (stop == 2) { stop = 0 }
		}
	' >> "$ROOT_DIR/projects/$2"
}

safety_check "$ROOT_DIR/source.list"

load_main_data "$ROOT_DIR/source.list" openttd
load_lang_data "$ROOT_DIR/src/lang/*.txt" lang

generate "$openttd" "openttd_vs80.vcproj"
generate "$openttd" "openttd_vs90.vcproj"
generate "$lang" "langs_vs80.vcproj"
generate "$lang" "langs_vs90.vcproj"