#!/bin/bash

CWD=$(pwd)
TAG=${TAG:-gwh}
OUTPUT=${OUTPUT:-/tmp}
TMP=/tmp/$TAG

PRGNAM=$(basename $CWD)
VERSION=${VERSION:-1.0}
ARCH=${ARCH:-${ARCH:-dosbox}}
BUILD=${BUILD:-1}

PKG=$TMP/pkg-$PRGNAM

REPOSITORY=${REPOSITORY:-/var/cache/SlackBuilds.gwh/$PRGNAM}

mkdir -p $REPOSITORY

rm -rf $PKG $TMP/${PRGNAM}-${VERSION}

mkdir -p $TMP
cd $TMP

mkdir -p $PKG/usr/games/ $PKG/usr/share/games/ $PKG/usr/doc/$PRGNAM
cd $PKG/usr/share/games
[ ! -e $REPOSITORY/Blockout_1989.zip ] && wget -c https://cors.archive.org/cors/msdos_Blockout_1989/Blockout_1989.zip -O $REPOSITORY/Blockout_1989.zip
unzip $REPOSITORY/Blockout_1989.zip
mv blkout $PRGNAM
cd $PRGNAM
touch $PKG/usr/share/games/Blockout/BLSCORE.IDX
chmod a+w $PKG/usr/share/games/$PRGNAM/*

cat <<EOF > dosbox.config
[sdl]
# fullscreen -- Start dosbox directly in fullscreen.
# autolock -- Mouse will automatically lock, if you click on the screen.
# sensitiviy -- Mouse sensitivity.
# waitonerror -- Wait before closing the console if dosbox has an error.

fullscreen=false
autolock=false
sensitivity=100
waitonerror=true

[dosbox]
# language -- Select another language file.
# memsize -- Amount of memory dosbox has in megabytes.

language=
memsize=16

[render]
# frameskip -- How many frames dosbox skips before drawing one.
# snapdir -- Directory where screenshots get saved.
# scaler -- Scaler used to enlarge/enhance low resolution modes.
#           Supported are none,normal2x,advmame2x
# scaler = none | normal2x | normal3x | tv2x | tv3x | rgb2x | rgb3x | scan2x | scan3x | advmame2x | advmame3x | advinterp2x | advinterp3x | 2xsai | super2xsai | supereagle | hq2x | hq3x
frameskip=0
snapdir=snaps
scaler=hq3x

[cpu]
# cycles -- Amount of instructions dosbox tries to emulate each millsecond.
#           Setting this higher than your machine can handle is bad!

#cycles=2583

[mixer]
# nosound -- Enable silent mode, sound is still emulated though.
# rate -- Mixer sample rate, setting any devices higher than this will
#         probably lower their sound quality.
# blocksize -- Mixer block size, larger blocks might help sound stuttering
#              but sound will also be more lagged.
# wavedir -- Directory where saved sound output goes when you use the
#            sound record key-combination, check README file.

nosound=false
rate=22050
blocksize=2048
wavedir=waves

[midi]
# mpu401 -- Enable MPU-401 Emulation.
# device -- Device that will receive the MIDI data from MPU-401.
#           This can be default,alsa,oss,win32,coreaudio,none.
# config -- Special configuration options for the device.

#mpu401=true
device=default
config=

[sblaster]
# sblaster -- Enable the soundblaster emulation.
# base,irq,dma -- The IO/IRQ/DMA address of the soundblaster.
# sbrate -- Sample rate of soundblaster emulation.
# adlib -- Enable the adlib emulation.
# adlibrate -- Sample rate of adlib emulation.
# cms -- Enable the Creative Music System/Gameblaster emulation.
#        Enabling both the adlib and cms might give conflicts!
# cmsrate -- Sample rate of cms emulation.

sblaster=true
base=220
irq=7
dma=1
sbrate=22050
adlib=true
adlibrate=22050
cms=false
cmsrate=22050

[speaker]
# pcspeaker -- Enable PC-Speaker emulation.
# pcrate -- Sample rate of the PC-Speaker sound generation.
# tandy -- Enable Tandy 3-Voice emulation.
# tandyrate -- Sample rate of the Tandy 3-Voice generation.
# disney -- Enable Disney Sound Source emulation.

pcspeaker=true
pcrate=22050
#tandy=true
tandyrate=22050
disney=true

[bios]
# Nothing to setup yet!


[dos]
# xms -- Enable XMS support.
# ems -- Enable EMS support.
# dpmi -- Enable builtin DPMI host support.
#         This might help in getting some games to work, but might crash others.
#         So be sure to try both settings.

xms=true
ems=true
dpmi=true

[autoexec]
# Lines in this section will be run at startup.
mount f /usr/share/games/$PRGNAM
f:
BL.EXE
exit
EOF

cd $PKG/usr/games/
cat <<EOF > $PRGNAM.sh
#!/bin/bash
dosbox -conf /usr/share/games/$PRGNAM/dosbox.config \$*
EOF
chmod +x $PRGNAM.sh

chown -R root:root $PKG/*

mkdir -p $PKG/install

cat <<EOF > $PKG/install/slack-desc
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':'.

            |-----handy-ruler------------------------------------------------------|
${PRGNAM}: ${PRGNAM} ($PRGNAM running in DosBox)
${PRGNAM}:
${PRGNAM}:  https://archive.org/details/msdos_$PRGNAM_1989
${PRGNAM}:
${PRGNAM}:
${PRGNAM}:
${PRGNAM}:
${PRGNAM}:
${PRGNAM}:
${PRGNAM}: see /usr/doc/${PRGNAM}-${VERSION} for more.
${PRGNAM}:
EOF

cd $PKG
rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg --linkadd y --chown n --prepend $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}$TAG.txz