#!/usr/bin/env bash
# gtauri build: Tauri v2 scroll-jank testbed (sltest port).
#
#   ./scripts/build.sh              # aarch64 (phone)
#   ./scripts/build.sh x86_64       # emulator
#   ADB_SERIAL=<s> ./scripts/build.sh   # install target
#
# Output: /tmp/gtauri/<abi>-release.apk (signed with the debug keystore).
set -euo pipefail
cd "$(dirname "$0")/.."

ABI="${1:-aarch64}"
case "$ABI" in
  aarch64|x86_64|armv7|i686) ;;
  *) echo "unknown ABI: $ABI" >&2; exit 2 ;;
esac

export ANDROID_HOME="${ANDROID_HOME:-$HOME/android-sdk}"
export ANDROID_SDK_ROOT="$ANDROID_HOME"

cargo tauri android build --target "$ABI"

SRC=gen/android/app/build/outputs/apk/universal/release/app-universal-release-unsigned.apk
[ -f "$SRC" ] || { echo "APK not found at $SRC" >&2; exit 1; }

OUT=/tmp/gtauri
mkdir -p "$OUT"
cp "$SRC" "$OUT/gtauri-$ABI-unsigned.apk"

KEYSTORE="${KEYSTORE:-$HOME/.android/debug.keystore}"
APKSIGNER="$ANDROID_HOME/build-tools/35.0.0/apksigner"
"$APKSIGNER" sign --ks "$KEYSTORE" --ks-key-alias androiddebugkey \
  --ks-pass pass:android --key-pass pass:android \
  --out "$OUT/gtauri-$ABI-release.apk" "$OUT/gtauri-$ABI-unsigned.apk"
echo "APK: $OUT/gtauri-$ABI-release.apk ($(du -h "$OUT/gtauri-$ABI-release.apk" | cut -f1))"

if [ -n "${ADB_SERIAL:-}" ]; then
  adb -s "$ADB_SERIAL" install -r "$OUT/gtauri-$ABI-release.apk"
  adb -s "$ADB_SERIAL" shell am force-stop wow.gmp.gtauri
  adb -s "$ADB_SERIAL" shell am start -n wow.gmp.gtauri/.MainActivity
fi