#!/bin/bash

# This file is part of OpenTTD.
# OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
# OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.

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

# Set neutral locale so sort behaves the same everywhere
LC_ALL=C
export LC_ALL

# We really need gawk for this!
AWK=gawk

${AWK} --version > /dev/null 2> /dev/null
if [ "$?" != "0" ]; then
	echo "This script needs gawk to run properly"
	exit 1
fi

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_vs142.sln             is for MSVC 2019
# openttd_vs142.vcxproj         is for MSVC 2019
# openttd_vs142.vcxproj.filters is for MSVC 2019
# langs_vs142.vcxproj           is for MSVC 2019
# strgen_vs142.vcxproj          is for MSVC 2019
# strgen_vs142.vcxproj.filters  is for MSVC 2019
# generate_vs142.vcxproj        is for MSVC 2019
# version_vs142.vcxproj         is for MSVC 2019
# basesets_vs142.vcxproj        is for MSVC 2019

# openttd_vs141.sln             is for MSVC 2017
# openttd_vs141.vcxproj         is for MSVC 2017
# openttd_vs141.vcxproj.filters is for MSVC 2017
# langs_vs141.vcxproj           is for MSVC 2017
# strgen_vs141.vcxproj          is for MSVC 2017
# strgen_vs141.vcxproj.filters  is for MSVC 2017
# generate_vs141.vcxproj        is for MSVC 2017
# version_vs141.vcxproj         is for MSVC 2017
# basesets_vs141.vcxproj        is for MSVC 2017

# openttd_vs140.sln             is for MSVC 2015
# openttd_vs140.vcxproj         is for MSVC 2015
# openttd_vs140.vcxproj.filters is for MSVC 2015
# langs_vs140.vcxproj           is for MSVC 2015
# strgen_vs140.vcxproj          is for MSVC 2015
# strgen_vs140.vcxproj.filters  is for MSVC 2015
# generate_vs140.vcxproj        is for MSVC 2015
# version_vs140.vcxproj         is for MSVC 2015
# basesets_vs140.vcxproj        is for MSVC 2015




# First, collect the list of Windows files
allegro_config=""
sdl_config="1"
png_config="1"
os="MSVC"
enable_dedicated="0"
enable_ai="1"
with_cocoa="0"
enable_directmusic="1"
enable_fluidsynth="0"
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' "$ROOT_DIR/source.list" | grep -v '../objs/langs/table/strings.h\|../objs/settings/table/settings.h' | sed 's/	//g' | sort > tmp.headers.source.list
find "$ROOT_DIR/src" \( -iname "*.h" -or -iname "*.hpp" \) -and -not -ipath "*/.svn/*" | 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 | ${AWK} -v BINMODE=1 '
		{ gsub("\\r", "", $0); }
		/^(	*)#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 ($0 == "ALLEGRO"     && "'$allegro_config'" == "")      { next; }
			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 ($0 == "DOS"         && "'$os'" != "DOS")               { next; }
			if ($0 == "DEDICATED"   && "'$enable_dedicated'" != "1")   { next; }
			if ($0 == "AI"          && "'$enable_ai'" == "0")          { next; }
			if ($0 == "COCOA"       && "'$with_cocoa'" == "0")         { next; }
			if ($0 == "HAIKU"       && "'$os'" != "HAIKU")             { next; }
			if ($0 == "WIN32"       && "'$os'" != "MINGW" &&
											"'$os'" != "CYGWIN" && "'$os'" != "MSVC" ) { next; }
			if ($0 == "MSVC"        && "'$os'" != "MSVC")              { next; }
			if ($0 == "DIRECTMUSIC" && "'$enable_directmusic'" != "1") { next; }
			if ($0 == "FLUIDSYNTH"  && "'$enable_fluidsynth'" != "1")  { next; }
			if ($0 == "USE_XAUDIO2" && "'$with_xaudio2'" == "0")       { next; }
			if ($0 == "USE_THREADS" && "'$with_threads'" == "0")       { next; }

			skip += 1;

			next;
		}
		/^(	*)#/ {
			if (deep == skip) {
				gsub("	", "", $0);
				gsub("^#", "", $0);
				gsub("^ ", "", $0);
				filter = $0;
				print "#3    <Filter Include=\\""filter"\\">";
				printf "#3      <UniqueIdentifier>{c76ff9f1-1e62-46d8-8d55-%012d}</UniqueIdentifier>\n", i;
				print "#3    </Filter>";
				i += 1;
			}

			next;
		}
		/^$/ { next }
		{
			if (deep == skip) {
				gsub("	", "", $0);
				gsub("/", "\\\\\\\\", $0);
				split($0, file, ".");
				cltype = "ClInclude"
				if (file[2] == "cpp") cltype = "ClCompile";
				if (file[2] == "rc") cltype = "ResourceCompile";
				print "#2    <"cltype" Include=\\"'$file_prefix'"$0"\\" />";
				print "#4    <"cltype" Include=\\"'$file_prefix'"$0"\\">";
				print "#4      <Filter>"filter"</Filter>";
				print "#4    </"cltype">";
			}
		}
	'`"

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

load_lang_data() {
	RES=""
	# Windows Folder sort and Linux Folder sort are slightly different.
	# By removing the extension and sorting it on Linux, they are the same.
	for i in `ls $1 | sed s~.txt$~~g | sort`
	do
		i=`basename $i`
		if [ "$i" == "english" ]
		then
			continue
		fi
		RES="$RES
#2    <CustomBuild Include=\"..\\\\src\\\\lang\\\\"$i".txt\">
#2      <Message Condition=\"'\$(Configuration)|\$(Platform)'=='Debug|Win32'\">Generating "$i" language file</Message>
#2      <Command Condition=\"'\$(Configuration)|\$(Platform)'=='Debug|Win32'\">..\\\\objs\\\\strgen\\\\strgen.exe -s ..\\\\src\\\\lang -d ..\\\\bin\\\\lang \"%(FullPath)\"</Command>
#2      <AdditionalInputs Condition=\"'\$(Configuration)|\$(Platform)'=='Debug|Win32'\">..\\\\src\\\\lang\\\\english.txt;..\\\\objs\\\\strgen\\\\strgen.exe;%(AdditionalInputs)</AdditionalInputs>
#2      <Outputs Condition=\"'\$(Configuration)|\$(Platform)'=='Debug|Win32'\">..\\\\bin\\\\lang\\\\"$i".lng;%(Outputs)</Outputs>
#2    </CustomBuild>
#3    <CustomBuild Include=\"..\\\\src\\\\lang\\\\"$i".txt\">
#3      <Filter>Translations</Filter>
#3    </CustomBuild>"
	done

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

load_settings_data() {
	RES=""
	RES2="
#3..\\\\objs\\\\settings\\\\settings_gen.exe -o ..\\\\objs\\\\settings\\\\table\\\\settings.h -b ..\\\\src\\\\table\\\\settings.h.preamble -a ..\\\\src\\\\table\\\\settings.h.postamble"
	for i in `ls $1`
	do
		i=`basename $i`
		RES="$RES
#2    <None Include=\"..\\\\src\\\\table\\\\"$i"\" />
#4    <None Include=\"..\\\\src\\\\table\\\\"$i"\">
#4      <Filter>INI</Filter>
#4    </None>"
		RES2="$RES2 ..\\\\src\\\\table\\\\"$i
	done

	eval "$2=\"\$RES\$RES2\""
}

load_baseset_data() {
	FIRST=""
	RES=""
	RES2="
#4    <Langs>"
	# Windows Folder sort and Linux Folder sort are slightly different.
	# By removing the extension and sorting it on Linux, they are the same.
	for i in `ls $2 | sed s~.txt$~~g | sort`
	do
		if [ "$FIRST" != "" ]; then
			RES2="$RES2;"
		else
			FIRST=1
		fi
		i=`basename $i`
		RES2="$RES2..\\\\src\\\\lang\\\\$i.txt"
	done
	RES2="$RES2</Langs>"
	# Windows Folder sort and Linux Folder sort are slightly different.
	# By fiddling with the extension and sorting it on Linux, they are the same.
	for i in `ls $1 | sed s~\\\.~000~g | sort | sed s~000~.~g`
	do
		i=`basename $i`
		RES="$RES
#2    <CustomBuild Include=\"..\\\\media\\\\baseset\\\\"$i"\">
#2      <Message Condition=\"'\$(Configuration)|\$(Platform)'=='Debug|Win32'\">Generating "$i" baseset metadata file</Message>
#2      <Command Condition=\"'\$(Configuration)|\$(Platform)'=='Debug|Win32'\">cscript //nologo ..\\\\media\\\\baseset\\\\translations.vbs \"%(FullPath)\" \"\$(OutputPath)$i\" ..\\\\src\\\\lang ..\\\\bin\\\\baseset\\\\orig_extra.grf</Command>
#2      <AdditionalInputs Condition=\"'\$(Configuration)|\$(Platform)'=='Debug|Win32'\">\$(Langs);..\\\\bin\\\\baseset\\\\orig_extra.grf;%(AdditionalInputs)</AdditionalInputs>
#2      <Outputs Condition=\"'\$(Configuration)|\$(Platform)'=='Debug|Win32'\">..\\\\bin\\\\baseset\\\\"$i";%(Outputs)</Outputs>
#2    </CustomBuild>
#3    <CustomBuild Include=\"..\\\\media\\\\baseset\\\\"$i"\">
#3      <Filter>Baseset Metadata</Filter>
#3    </CustomBuild>"
	done

	eval "$3=\"\$RES\$RES2\""
}

generate() {
	echo "Generating $2..."
	# Everything above the !!FILTERS!! marker
	cat "$ROOT_DIR/projects/$2".in | ${AWK} -v BINMODE=1 -v FILTERS="$3" -v FILES="$1" '
		{ CR = (match($0, "\\r$") > 0 ? "\r" : "") }
		/^$/ { next }
		/!!FILTERS!!/ {
			split(FILTERS, filters, "\n");
			for (i = 1; filters[i] != ""; i++) {
				print filters[i] CR;
			}
			next;
		}
		/!!FILES!!/ {
			split(FILES, files, "\n");
			for (i = 1; files[i] != ""; i++) {
				print files[i] CR;
			}
			next;
		}
		{
			print $0;
		}
	' > "$ROOT_DIR/projects/$2"
}

safety_check "$ROOT_DIR/source.list"

load_main_data "$ROOT_DIR/source.list" openttd
openttdfiles=`echo "$openttd" | grep "^#4" | sed "s~#4~~g"`
openttdfilters=`echo "$openttd" | grep "^#3" | sed "s~#3~~g"`
openttdvcxproj=`echo "$openttd" | grep "^#2" | sed "s~#2~~g"`

load_lang_data "$ROOT_DIR/src/lang/*.txt" lang
langfiles=`echo "$lang" | grep "^#3" | sed "s~#3~~g"`
langvcxproj=`echo "$lang" | grep "^#2" | sed "s~#2~~g"`

load_settings_data "$ROOT_DIR/src/table/*.ini" settings
settingsfiles=`echo "$settings" | grep "^#4" | sed "s~#4~~g"`
settingscommand=`echo "$settings" | grep "^#3" | sed "s~#3~~g"`
settingsvcxproj=`echo "$settings" | grep "^#2" | sed "s~#2~~g"`

load_baseset_data "$ROOT_DIR/media/baseset/*.ob?" "$ROOT_DIR/src/lang/*.txt" baseset
basesetfiles=`echo "$baseset" | grep "^#3" | sed "s-#3--g"`
basesetvcxproj=`echo "$baseset" | grep "^#2" | sed "s~#2~~g"`
basesetlangs=`echo "$baseset" | grep "^#4" | sed "s~#4~~g"`

generate "$openttdvcxproj" "openttd_vs140.vcxproj"
generate "$openttdfiles" "openttd_vs140.vcxproj.filters" "$openttdfilters"
generate "$openttdvcxproj" "openttd_vs141.vcxproj"
generate "$openttdfiles" "openttd_vs141.vcxproj.filters" "$openttdfilters"
generate "$openttdvcxproj" "openttd_vs142.vcxproj"
generate "$openttdfiles" "openttd_vs142.vcxproj.filters" "$openttdfilters"
generate "$langvcxproj" "langs_vs140.vcxproj"
generate "$langfiles" "langs_vs140.vcxproj.filters"
generate "$langvcxproj" "langs_vs141.vcxproj"
generate "$langfiles" "langs_vs141.vcxproj.filters"
generate "$langvcxproj" "langs_vs142.vcxproj"
generate "$langfiles" "langs_vs142.vcxproj.filters"
generate "$settingsvcxproj" "settings_vs140.vcxproj" "$settingscommand"
generate "$settingsfiles" "settings_vs140.vcxproj.filters"
generate "$settingsvcxproj" "settings_vs141.vcxproj" "$settingscommand"
generate "$settingsfiles" "settings_vs141.vcxproj.filters"
generate "$settingsvcxproj" "settings_vs142.vcxproj" "$settingscommand"
generate "$settingsfiles" "settings_vs142.vcxproj.filters"
generate "$basesetvcxproj" "basesets_vs140.vcxproj" "$basesetlangs"
generate "$basesetfiles" "basesets_vs140.vcxproj.filters"
generate "$basesetvcxproj" "basesets_vs141.vcxproj" "$basesetlangs"
generate "$basesetfiles" "basesets_vs141.vcxproj.filters"
generate "$basesetvcxproj" "basesets_vs142.vcxproj" "$basesetlangs"
generate "$basesetfiles" "basesets_vs142.vcxproj.filters"