#!/usr/bin/env bash
# Build the gallery Android APK (and optionally install it).
#
#   ./scripts/build.sh              # release x86_64 (emulator) + install
#   ./scripts/build.sh aarch64      # release aarch64 (real device) + install
#   ./scripts/build.sh debug        # debug x86_64 + install (faster builds)
#   ./scripts/build.sh <arch> no-install
#
# Desktop (Linux): cargo run   (needs libfontconfig1 + pkg-config)
# Desktop (macOS): cargo run   (pure Rust, nothing extra)
set -euo pipefail
cd "$(dirname "$0")/.."

export ANDROID_HOME=$HOME/android-sdk
export ANDROID_NDK_ROOT=$HOME/android-sdk/ndk/27.0.12077973
export PATH="$HOME/.cargo/bin:$ANDROID_HOME/platform-tools:$PATH"
# C/C++ cross-compilers for bundled native deps (libsqlite3-sys via rusqlite).
# The `cc` crate picks these up per target triple (min sdk 26).
NDK_BIN=$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/linux-x86_64/bin
export CC_x86_64_linux_android=$NDK_BIN/x86_64-linux-android26-clang
export CXX_x86_64_linux_android=$NDK_BIN/x86_64-linux-android26-clang++
export AR_x86_64_linux_android=$NDK_BIN/llvm-ar
export CC_aarch64_linux_android=$NDK_BIN/aarch64-linux-android26-clang
export CXX_aarch64_linux_android=$NDK_BIN/aarch64-linux-android26-clang++
export AR_aarch64_linux_android=$NDK_BIN/llvm-ar
# Debug-keystore signing is fine for personal use / Play internal testing.
export CARGO_APK_RELEASE_KEYSTORE=$HOME/.android/debug.keystore
export CARGO_APK_RELEASE_KEYSTORE_PASSWORD=android

arg1=${1:-x86_64}
arg2=${2:-install}

profile=--release
case $arg1 in
  debug)       target=x86_64-linux-android; profile="" ;;
  x86_64)      target=x86_64-linux-android ;;
  aarch64)     target=aarch64-linux-android ;;
  *) echo "unknown arch: $arg1" >&2; exit 1 ;;
esac

cargo apk2 build $profile --target "$target" --lib
apk=$(ls target/*/apk/gallery.apk | head -1)
echo "APK: $apk ($(du -h "$apk" | cut -f1))"

if [ "$arg2" = install ] && command -v adb >/dev/null; then
  adb install -r "$apk"
  adb shell am start -n wow.gmp.gallery/android.app.NativeActivity || true
fi