# Copyright 2016 Julian Ospald <hasufell@posteo.de>
# Distributed under the terms of the GNU General Public License v2

# TODO/FIXME:
# lunatic broken
# lunatic? ( >=dev-lang/luajit-2.0.0_beta10:2 )
# $(usex lunatic "LUNATIC=1" "LUNATIC=0")
#
# extras? ( games-fps/${PN}-extras )
#
# clang does not build

SCM_SVN_RAW_URI=1
SCM_REPOSITORY="http://svn.eduke32.com/eduke32/polymer/eduke32"

require gtk-icon-cache scm-svn

MY_PV=${PV%.*}
MY_BUILD=${PV#*.}

# extensions
MY_HRP=5.2
MY_SC55=3.0
MY_OPL=2.0
MY_XXX=1.33

SUMMARY="Port of Duke Nukem 3D for SDL"
HOMEPAGE="http://www.eduke32.com/ http://hrp.duke4.net/"
DOWNLOADS="http://dev.gentoo.org/~hasufell/distfiles/eduke32-icons.tar
    hires-textures? ( mirror://gentoo/duke3d_hrp_${MY_HRP}.zip )
    sc55-musicpack? ( http://www.duke4.org/files/nightfright/music/duke3d_mus.zip -> duke3d_mus_${MY_SC55}.zip )
    opl-musicpack? ( http://www.duke4.org/files/nightfright/music/duke3d_musopl.zip -> duke3d_musopl_${MY_OPL}.zip )
    offensive? ( http://www.duke4.org/files/nightfright/duke3d_xxx.zip -> duke3d_xxx_${MY_XXX}.zip )"

LICENCES="GPL-2 BUILDLIC hires-textures? ( hrp_art )"
SLOT="0"
PLATFORMS="~amd64"
MYOPTIONS="
    offensive [[ requires = hires-textures
                 description = [ Include optional XXX texture pack ] ]]
    hires-textures [[ description = [ Include optional high-resolution
                                      textures ] ]]
    tools [[ description = [ Build several tools for modding and
                             development ] ]]
    vpx [[ description = [ Enable support for WebM VP8 Codecs ] ]]
    (
      opl-musicpack [[ description = [ Include optional OPL (AdLib)
                                       music pack ] ]]
      sc55-musicpack [[ description = [ Include optional Roland SC-55
                                        music pack ] ]]
    ) [[ number-selected = at-most-one ]]
"

DEPENDENCIES="
    build:
        virtual/unzip
    build+run:
        media-libs/SDL:0[X]
        media-libs/SDL_mixer:0[midi]
        media-libs/flac
        media-libs/libogg
        media-libs/libpng:=
        media-libs/libvorbis
        sys-libs/zlib
        x11-dri/glu
        x11-dri/mesa
        x11-libs/gtk+:2
        vpx? ( media-libs/libvpx )
    suggestion:
        games-fps/duke3d-data [[ description = [ Install data portion via
                                                 GOG installer ] ]]
"

src_unpack() {
    unpack eduke32-icons.tar
    scm_src_unpack

    if option hires-textures; then
        edo unzip -q "${FETCHEDDIR}"/duke3d_hrp_${MY_HRP}.zip "hrp_readme.txt"
        if option offensive; then
            edo unzip -q "${FETCHEDDIR}"/duke3d_xxx_${MY_XXX}.zip "xxx_readme.txt"
        fi
    fi
    if option opl-musicpack; then
        edo unzip -q "${FETCHEDDIR}"/duke3d_musopl_${MY_OPL}.zip "readme.txt"
        edo mv readme.txt musopl_readme.txt
    elif option sc55-musicpack; then
        edo unzip -q "${FETCHEDDIR}"/duke3d_mus_${MY_SC55}.zip "music_readme.txt"
    fi
}

src_prepare() {
    edo sed -i \
        -e "s;/usr/local/share/games/${PN};/usr/share/duke3d;" \
        source/common.c
    edo sed -i \
        -e "/OSD_SetLogFile/s;mapster32.log;~/.mapster32.log;" \
        source/astub.c
    edo sed -i \
        -e "/OSD_SetLogFile/s;${PN}.log;~/.${PN}.log;" \
        source/game.c
    edo sed -i \
        -e "s|pkg-config|${PKG_CONFIG}|" \
        Makefile
}

src_compile() {
    local MY_OPTS=(
        AR=${AR}
        AS=${AS}
        CC=${CC}
        CXX=${CXX}
        RANLIB=${RANLIB}
        CUSTOMOPT="${CFLAGS}"
        STRIP=touch

        ARCH=
        CPLUSPLUS=0
        DEBUGANYWAY=0
        F_JUMP_TABLES=""
        LINKED_GTK=1
        LTO=0
        LUNATIC=0
        NETCODE=1
        NOASM=1
        OPTLEVEL=0
        POLYMER=1
        PRETTY_OUTPUT=0
        RELEASE=1
        SDL_TARGET=1
        SYSARCH=
        USE_LIBPNG=1
        USE_OPENGL=1
        WITHOUT_GTK=0

        $(usex vpx "USE_LIBVPX=1" "USE_LIBVPX=0")
    )

    emake "${MY_OPTS[@]}"
    if option tools ; then
        emake "${MY_OPTS[@]}" utils
    fi
}

src_install() {
    local ARGS

    newbin ${PN} ${PN}.bin
    dobin mapster32

    if option tools; then
        dobin {arttool,bsuite,cacheinfo,generateicon,givedepth,kextract,kgroup,kmd2tool,md2tool,mkpalette,transpal,unpackssi,wad2art,wad2map}
        dodoc build/doc/*.txt
    fi

    insinto "/usr/share/${PN}"
    # Install optional components
    if option hires-textures; then
        newins "${FETCHEDDIR}"/duke3d_hrp_${MY_HRP}.zip duke3d_hrp.zip
        dodoc "${WORKBASE}"/hrp_readme.txt
        ARGS+=" -g duke3d_hrp.zip"

        if option offensive; then
            newins "${FETCHEDDIR}"/duke3d_xxx_${MY_XXX}.zip duke3d_xxx.zip
            dodoc "${WORKBASE}"/xxx_readme.txt
            ARGS+=" -g duke3d_xxx.zip"
        fi
    fi

    if option opl-musicpack; then
        newins "${FETCHEDDIR}"/duke3d_musopl_${MY_OPL}.zip duke3d_musopl.zip
        dodoc "${WORKBASE}"/musopl_readme.txt
        ARGS+=" -g duke3d_musopl.zip"
    elif option sc55-musicpack; then
        newins "${FETCHEDDIR}"/duke3d_mus_${MY_SC55}.zip duke3d_mus.zip
        dodoc "${WORKBASE}"/music_readme.txt
        ARGS+=" -g duke3d_mus.zip"
    fi

    # Install game data
    doins package/sdk/{SEHELP.HLP,STHELP.HLP,m32help.hlp,names.h,tiles.cfg}

    local i
    for i in 16 32 128 256 ; do
        insinto /usr/share/icons/hicolor/${i}x${i}/apps
        newins "${WORKBASE}"/${PN}_${i}x${i}x32.png ${PN}.png
        newins "${WORKBASE}"/mapster32_${i}x${i}x32.png mapster32.png
    done

    herebin ${PN} << EOF
#!/bin/sh
exec /usr/bin/eduke32.bin ${ARGS} "\$@"
EOF

    insinto /usr/share/applications
    hereins ${PN}.desktop << EOF
[Desktop Entry]
Name=EDuke32
Type=Application
Comment=${SUMMARY}
Exec=${PN}
TryExec=${PN}
Icon=${PN}
Categories=Game;ActionGame;
EOF

    hereins mapster32.desktop << EOF
[Desktop Entry]
Name=Mapster32
Type=Application
Comment=${SUMMARY}
Exec=mapster32
TryExec=mapster32
Icon=mapster32
Categories=Game;ActionGame;
EOF

    dodoc build/buildlic.txt
}

pkg_postinst() {
    gtk-icon-cache_pkg_postinst

    einfo
    elog "${PN} reads data files from /usr/share/duke3d"
    elog "make sure the game files are there (either copied or linked)."
    einfo
    elog "Logs are written to ~/.eduke32.log and ~/.mapster32.log"
}