#!/usr/bin/env bash
# Installs or updates every SWAT+ tool on https://install.swat.tamu.edu:
# SWAT+ Editor, SWAT+ Toolbox, QSWATPlus.
# All or nothing: every installer is downloaded and the requirements are checked
# before anything is installed, and the first installer that fails stops the rest.

TMP="$(mktemp -d "${TMPDIR:-/tmp}/swatplus-all.XXXXXX")" || exit 1
trap 'rm -rf "$TMP"' EXIT
DONE=""

say() { printf '\n\033[1;35m### %s\033[0m\n' "$*"; }

stop() {
  printf '\n\033[1;31mxx \033[0m %s\n' "$*" >&2
  if [ -n "$DONE" ]; then printf 'Installed or updated before it stopped:\n%s' "$DONE" >&2
  else printf 'Nothing was installed.\n' >&2; fi
  exit 1
}

get() {  # <url> <file>
  curl -fsSL --proto '=https' --tlsv1.2 --retry 3 --retry-delay 2 "$1" -o "$TMP/$2" \
    || stop "Could not download $1"
}

# The installers are written for `curl ... | bash`, so stdin is not a terminal there either.
run() {  # <name> <file> [arguments]
  local name="$1" f="$2" rc
  shift 2
  say "$name"
  bash "$TMP/$f" "$@" < /dev/null
  rc=$?
  [ "$rc" -eq 0 ] || stop "$name: the installer stopped with status $rc (see its messages above)."
  DONE="$DONE  $name"$'\n'
}

main() {
  get 'https://install.swat.tamu.edu/spe.sh' editor.sh
  get 'https://install.swat.tamu.edu/spt.sh' toolbox.sh
  get 'https://install.swat.tamu.edu/qsp.sh' qswatplus.sh
  say 'Checking the QSWATPlus requirements'
  bash "$TMP/qswatplus.sh" --check < /dev/null || stop 'QSWATPlus cannot be installed here (see above).'
  run 'SWAT+ Editor' editor.sh
  run 'SWAT+ Toolbox' toolbox.sh
  run 'QSWATPlus' qswatplus.sh --all
  say "Summary"
  printf 'Installed or up to date:\n%s' "$DONE"
}

# The whole file is read before anything runs, so a cut-off download does nothing.
main