#!/usr/bin/env bash
# Voiceinator installer. Read it, then run it:
#   curl -fsSL https://voiceinator.com/install.sh | bash
# Free, Apple Silicon only, macOS 14+. Installs to /Applications.
set -euo pipefail

# The publish step updates these two lines.
VERSION="1.0.0"
SHA256="bf66fe87793acec8995c845933ce640bcdf6153cdb10bb9155cedd59a4c5feea"

URL="${VOICEINATOR_DMG_URL:-https://updates.boringlabs.online/Voiceinator-$VERSION.dmg}"
INSTALL_DIR="${INSTALL_DIR:-/Applications}"

die() { echo "Voiceinator: $*" >&2; exit 1; }

[ "$(uname -s)" = "Darwin" ] || die "this is a Mac app."
[ "$(uname -m)" = "arm64" ] || die "needs an Apple Silicon Mac (M1 or newer). Intel Macs can't run it."
[ "$(sw_vers -productVersion | cut -d. -f1)" -ge 14 ] || die "needs macOS 14 or later."
[ -w "$INSTALL_DIR" ] || die "$INSTALL_DIR isn't writable by you. Ask an admin, or set INSTALL_DIR to a folder you own."

# The DMG is ~4.4 GB and the app is ~4.9 GB, and both exist at once.
NEED_GB="${VOICEINATOR_NEED_GB:-10}"
free_gb=$(( $(df -k "$INSTALL_DIR" | awk 'NR==2 {print $4}') / 1048576 ))
[ "$free_gb" -ge "$NEED_GB" ] || die "needs about $NEED_GB GB free, you have $free_gb GB. Clear some space and run it again."

TMP="$(mktemp -d)"
MNT="$TMP/mnt"
cleanup() {
  hdiutil detach "$MNT" -quiet 2>/dev/null || true
  rm -rf "$TMP"
}
trap cleanup EXIT

echo "1/3 Downloading Voiceinator $VERSION (about 4.4 GB, it works offline)..."
curl -fL --progress-bar "$URL" -o "$TMP/Voiceinator.dmg"

echo "2/3 Checking the download..."
actual="$(shasum -a 256 "$TMP/Voiceinator.dmg" | cut -d' ' -f1)"
[ "$actual" = "$SHA256" ] || die "checksum mismatch, so I stopped. Expected $SHA256, got $actual."

echo "3/3 Installing to $INSTALL_DIR..."
mkdir -p "$MNT"
hdiutil attach -nobrowse -readonly -quiet -mountpoint "$MNT" "$TMP/Voiceinator.dmg"
[ -d "$MNT/Voiceinator.app" ] || die "Voiceinator.app isn't in the disk image."

if pgrep -x Voiceinator >/dev/null 2>&1; then
  osascript -e 'tell application "Voiceinator" to quit' >/dev/null 2>&1 || true
  sleep 2
fi

rm -rf "$INSTALL_DIR/Voiceinator.app"
ditto "$MNT/Voiceinator.app" "$INSTALL_DIR/Voiceinator.app"
xattr -cr "$INSTALL_DIR/Voiceinator.app"

echo "Done. Hold your key and talk."
# Only open it for a real install, not a test dir.
[ "$INSTALL_DIR" != "/Applications" ] || open "$INSTALL_DIR/Voiceinator.app"