#!/bin/bash

# omarchy:summary=Install RetroArch with the full libretro core set plus FBNeo and a ~/Games ROM directory.

set -e

omarchy-pkg-add \
  retroarch \
  retroarch-assets-glui retroarch-assets-ozone retroarch-assets-xmb \
  libretro-beetle-pce libretro-beetle-pce-fast libretro-beetle-psx libretro-beetle-psx-hw libretro-beetle-supergrafx \
  libretro-blastem \
  libretro-bsnes libretro-bsnes-hd libretro-bsnes2014 \
  libretro-core-info \
  libretro-desmume libretro-dolphin libretro-flycast \
  libretro-gambatte libretro-genesis-plus-gx \
  libretro-kronos \
  libretro-mame libretro-mame2016 libretro-melonds libretro-mesen libretro-mesen-s libretro-mgba libretro-mupen64plus-next \
  libretro-nestopia \
  libretro-overlays \
  libretro-parallel-n64 libretro-picodrive libretro-play libretro-ppsspp \
  libretro-sameboy libretro-scummvm libretro-shaders-slang libretro-snes9x \
  libretro-yabause \
  libretro-fbneo-git

# Set up ~/Games for BIOS files and ROMs
mkdir -p "$HOME/Games/bios" "$HOME/Games/roms"

CFG="$HOME/.config/retroarch/retroarch.cfg"
mkdir -p "$(dirname "$CFG")"
touch "$CFG"

set_cfg() {
  local key=$1 value=$2
  if grep -q "^$key = " "$CFG"; then
    sed -i "s|^$key = .*|$key = \"$value\"|" "$CFG"
  else
    echo "$key = \"$value\"" >>"$CFG"
  fi
}

set_cfg rgui_browser_directory "$HOME/Games/roms"
set_cfg system_directory "$HOME/Games/bios"

# Point at the cores and assets installed by pacman
set_cfg libretro_directory "/usr/lib/libretro"
set_cfg libretro_info_path "/usr/share/libretro/info"
set_cfg overlay_directory "/usr/share/libretro/overlays"
set_cfg osk_overlay_directory "/usr/share/libretro/overlays/keyboards"
set_cfg video_shader_dir "/usr/share/libretro/shaders/shaders_slang"

# Vulkan is required for slang shaders and unlocks hardware renderers in beetle-psx-hw, parallel-n64, dolphin
set_cfg video_driver "vulkan"

# XMB is the classic PS3-style menu (vs. ozone/rgui/glui)
set_cfg menu_driver "xmb"

# Default to crt-royale shader for that classic CRT look. The global preset is
# auto-loaded by RetroArch when auto_shaders_enable is true and no per-core/per-game
# preset takes precedence — setting video_shader alone in retroarch.cfg is not enough.
set_cfg video_shader_enable "true"
set_cfg auto_shaders_enable "true"
mkdir -p ~/.config/retroarch/config
echo '#reference "/usr/share/libretro/shaders/shaders_slang/crt/crt-royale.slangp"' \
  > ~/.config/retroarch/config/global.slangp

# Hide Images and Video tabs in the main menu sidebar
set_cfg content_show_images "false"
set_cfg content_show_video "false"

setsid gtk-launch com.libretro.RetroArch.desktop >/dev/null 2>&1 &