#!/bin/bash
# RetroBIOS from the Tools menu of ArkOS, dArkOS, ROCKNIX, JELOS and
# AmberELEC: checks the BIOS folder and downloads the files it lacks, in the
# installer's full-screen interface, each firmware the way its own tools do.
#
#   ArkOS, dArkOS   console 1 with a Terminus font, /opt/inttools/gptokeyb
#                   (dArkOS_Tools/Wifi.sh)
#   AmberELEC       /dev/console, TERM=linux, the system gptokeyb
#                   (modules/SetTime.sh)
#   ROCKNIX, JELOS  the foot or weston terminal the Tools menu opens, then a
#                   graphical terminal or the console, with gptokeyb

HERE="$(cd "$(dirname "$0")" && pwd)"
ROOT="${RB_ROOT:-}"
RB_DIR="$HERE/retrobios"
RB_LOG="$RB_DIR/log.txt"
ESUDO=""
MAPPER_SUDO=""
kill_flag="-1"
OS_NAME=""
if [ -f "$ROOT/etc/os-release" ]; then
  OS_NAME=$(awk -F= '$1 == "NAME" { gsub(/"/, "", $2); print $2 }' "$ROOT/etc/os-release")
fi

rb_gptokeyb() {
  local candidate
  for candidate in "$@"; do
    if [ -x "$candidate" ]; then
      printf '%s\n' "$candidate"
      return 0
    fi
  done
  command -v gptokeyb 2>/dev/null
}

if [ -d "$ROOT/opt/system" ] && [ -d "$ROOT/opt/inttools" ]; then
  # ArkOS and dArkOS run EmulationStation as a user with sudo.
  if sudo -n true >/dev/null 2>&1; then
    ESUDO="sudo"
  fi
  RB_ROUTES="vt"
  RB_CONSOLE="${RB_CONSOLE:-/dev/tty1}"
  RB_PACK_PATH="$RB_DIR:$HERE:/roms:/roms2"
  # The second card is /roms2, and "Switch to SD2 for Roms" moves RetroArch's
  # system folder there (dArkOS scripts/Switch to SD2 for Roms.sh:91-92): the
  # folder RetroArch reads is the destination, the other card's is offered.
  RB_OTHER_CARDS="${RB_OTHER_CARDS:-/roms/bios:/roms2/bios}"
  RB_BIOS_DEST=$(awk -F'"' '/^system_directory *=/ { print $2; exit }' \
    "$ROOT/home/ark/.config/retroarch/retroarch.cfg" 2>/dev/null)
  controlfolder="$ROOT/opt/system/Tools/PortMaster"
  mapper=$(rb_gptokeyb "$ROOT/opt/inttools/gptokeyb" "$controlfolder/gptokeyb")
  [ -f "$ROOT/opt/inttools/gamecontrollerdb.txt" ] \
    && export SDL_GAMECONTROLLERCONFIG_FILE="$ROOT/opt/inttools/gamecontrollerdb.txt"
  # sudo's env_reset drops the controller list exported above, and a pad
  # SDL does not know then sends nothing: PortMaster keeps it the same way
  # on ArkOS (control.txt, ESUDO).
  [ -n "$ESUDO" ] && MAPPER_SUDO="sudo --preserve-env=SDL_GAMECONTROLLERCONFIG_FILE"
elif [ "$OS_NAME" = "AmberELEC" ]; then
  RB_ROUTES="vt"
  RB_CONSOLE="${RB_CONSOLE:-/dev/console}"
  RB_PACK_PATH="$RB_DIR:$HERE:/storage/roms"
  controlfolder="/storage/roms/ports/PortMaster"
  mapper=$(rb_gptokeyb "$ROOT/usr/bin/gptokeyb" "$controlfolder/gptokeyb")
  [ -f /storage/.config/SDL-GameControllerDB/gamecontrollerdb.txt ] \
    && export SDL_GAMECONTROLLERCONFIG_FILE="/storage/.config/SDL-GameControllerDB/gamecontrollerdb.txt"
else
  # ROCKNIX, JELOS and the other systems built like them: the Tools menu
  # runs this inside foot on sway builds, so its own terminal comes first.
  RB_ROUTES="here app vt"
  RB_CONSOLE="${RB_CONSOLE:-/dev/tty1}"
  RB_PACK_PATH="$RB_DIR:$HERE:/storage/roms"
  controlfolder="/storage/roms/ports/PortMaster"
  mapper=$(rb_gptokeyb "$ROOT/usr/bin/gptokeyb" "$controlfolder/gptokeyb")
  # ROCKNIX's own tools load the pad's controller list first (fex-emu's
  # Start FEXConfig.sh: control-gen_init.sh, control.ini, get_controls), and
  # start the GPTOKEYB it names. control.ini also sets ESUDO and
  # controlfolder, which this launcher keeps as they were.
  control="$ROOT/storage/.config/gptokeyb/control.ini"
  command -v control-gen_init.sh >/dev/null 2>&1 && control-gen_init.sh >/dev/null 2>&1
  if [ -f "$control" ]; then
    saved_esudo="$ESUDO" saved_folder="$controlfolder"
    # shellcheck source=/dev/null
    source "$control"
    declare -F get_controls >/dev/null && get_controls
    # Its kill flag is -sudokill (control-gen.cpp:31), which kills through
    # sudo, and ROCKNIX's sudo is a stub that runs nothing (busybox
    # scripts/sudo): Start + Select would end the run only 3 s later,
    # through the mapper's exit. -1 kills as the user it runs as, root.
    if [ -n "${GPTOKEYB:-}" ]; then
      mapper="$GPTOKEYB"
      case "$mapper" in
        *" -sudokill"|*" -1"|*" -k") mapper="${mapper% *}" ;;
      esac
    fi
    ESUDO="$saved_esudo" controlfolder="$saved_folder"
  fi
fi
# Kill mode: Start + Select closes the interface, never another program.
RB_MAPPER=""
[ -n "$mapper" ] && RB_MAPPER="${MAPPER_SUDO:-$ESUDO} $mapper $kill_flag"

# shellcheck source=../shared/tui.txt
source "$RB_DIR/tui.txt"
rb_open_log fresh
rb_select_python
# A launcher's own arguments are not install.py's (muOS passes the app folder).
# shellcheck disable=SC2119
rb_launch
status=$?
rb_release_python
exit $status