#!/usr/bin/env bash
# Собирает преднастроенный RustDesk APK (arm64-v8a) под self-hosted сервер. Linux/VM 118.
# Тулчейн — provision-android.sh (пишет ~/dev/rd-android.env). Логика зеркалит build-windows.ps1.
#
# Конфиг сервера: env RUSTDESK_SERVER/RUSTDESK_PUB_KEY (CI secrets) или config/server.env.
# Клон rustdesk: RUSTDESK_SRC_DIR (по умолч. ~/rd-build/rustdesk).
set -euo pipefail
ROOT="$(cd "$(dirname "$0")/.." && pwd)"

# --- пины ---
declare -A P
while IFS='=' read -r k v; do [[ "$k" =~ ^[A-Z] ]] && P[$k]="${v%$'\r'}"; done < "$ROOT/upstream.txt"
TAG="${P[RUSTDESK_TAG]}"; REPO="${P[RUSTDESK_REPO]}"; RUST_V="${P[RUST_VERSION]}"
echo "== RustDesk android build == tag=$TAG (arm64-v8a)"

# --- тулчейн-env ---
[ -f "$HOME/dev/rd-android.env" ] || { echo "нет ~/dev/rd-android.env — прогони provision-android.sh" >&2; exit 1; }
# shellcheck disable=SC1090
source "$HOME/dev/rd-android.env"
export ANDROID_NDK="$ANDROID_NDK_HOME"          # build_android_deps.sh использует $ANDROID_NDK
command -v cargo >/dev/null || { echo "нет cargo в PATH" >&2; exit 1; }
command -v flutter >/dev/null || { echo "нет flutter в PATH" >&2; exit 1; }

# --- конфиг сервера ---
if [ -z "${RUSTDESK_SERVER:-}" ] || [ -z "${RUSTDESK_PUB_KEY:-}" ]; then
  if [ -f "$ROOT/config/server.env" ]; then set -a; . "$ROOT/config/server.env"; set +a; fi
fi
: "${RUSTDESK_SERVER:?не задан RUSTDESK_SERVER}"; : "${RUSTDESK_PUB_KEY:?не задан RUSTDESK_PUB_KEY}"

# --- клон/сброс до пина ---
SRC="${RUSTDESK_SRC_DIR:-$HOME/rd-build/rustdesk}"
if [ ! -d "$SRC/.git" ]; then
  mkdir -p "$(dirname "$SRC")"
  git clone --branch "$TAG" --depth 1 --recurse-submodules --shallow-submodules "$REPO" "$SRC"
else
  git -C "$SRC" checkout -- .; git -C "$SRC" submodule foreach --recursive 'git checkout -- .' >/dev/null
fi
( cd "$SRC" && rustup override set "$RUST_V" >/dev/null && rustup component add rustfmt >/dev/null 2>&1 || true )

# --- preconfigure: вшить сервер+ключ ---
RUSTDESK_SERVER="$RUSTDESK_SERVER" RUSTDESK_PUB_KEY="$RUSTDESK_PUB_KEY" bash "$ROOT/scripts/preconfigure.sh" "$SRC"

cd "$SRC"

# --- vcpkg-зависимости под android arm64 (ffmpeg/aom/… из исходников — ДОЛГО) ---
echo "[deps] build_android_deps.sh arm64-v8a ..."
./flutter/build_android_deps.sh arm64-v8a

# --- flutter_rust_bridge codegen ---
echo "[codegen] flutter_rust_bridge ..."
( cd flutter && flutter pub get >/dev/null )
LLVM_ROOT="$(dirname "$(dirname "$(find /usr/lib -name 'libclang.so*' 2>/dev/null | head -1)")")"
RUSTC_BOOTSTRAP=1 flutter_rust_bridge_codegen \
  --rust-input ./src/flutter_ffi.rs \
  --dart-output ./flutter/lib/generated_bridge.dart \
  --c-output ./flutter/macos/Runner/bridge_generated.h \
  ${LLVM_ROOT:+--llvm-path "$LLVM_ROOT"}
[ -f src/bridge_generated.rs ] && [ -f flutter/lib/generated_bridge.dart ] && [ -f flutter/lib/generated_bridge.freezed.dart ] \
  || { echo "codegen неполный: нет dart-моста" >&2; exit 1; }

# --- rust .so под arm64 через cargo-ndk ---
# По умолчанию БЕЗ hwcodec: его build.rs гоняет host-bindgen android-clang'ом и падает на
# glibc-заголовках (bits/libc-header-start.h). Софт-кодеки (vpx/aom) работают. hwcodec-android
# — отдельная доработка (RUSTDESK_ANDROID_FEATURES="flutter,hwcodec" когда починим bindgen).
FEATURES="${RUSTDESK_ANDROID_FEATURES:-flutter}"
# bindgen (magnum-opus/hwcodec/scrap) при кросс-сборке резолвит #include <stdint.h> в HOST
# /usr/include (glibc) -> не находит bits/libc-header-start.h. Указываем NDK-sysroot и target
# через target-specific env (bindgen читает подчёркнутую форму).
NDK_SYSROOT="$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/sysroot"
export BINDGEN_EXTRA_CLANG_ARGS_aarch64_linux_android="--sysroot=$NDK_SYSROOT --target=aarch64-linux-android21"
echo "[rust] cargo ndk build --features $FEATURES (bindgen sysroot=$NDK_SYSROOT) ..."
cargo ndk --platform 21 --target aarch64-linux-android build --locked --release --features "$FEATURES"

# --- jniLibs: librustdesk.so + libc++_shared.so ---
JNI=flutter/android/app/src/main/jniLibs/arm64-v8a
mkdir -p "$JNI"
cp ./target/aarch64-linux-android/release/liblibrustdesk.so "$JNI/librustdesk.so"
cp "$ANDROID_NDK_HOME/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/aarch64-linux-android/libc++_shared.so" "$JNI/"

# --- подпись: без key.properties (keystore Глеба) release подписываем DEBUG-ключом ---
# (APK ставится для теста; преднастройка от подписи не зависит — она в librustdesk.so).
# Дашь свой keystore -> положи flutter/android/key.properties, тогда подпишется им (для раздачи/F-Droid).
if ! grep -q 'keystorePropertiesFile.exists() ? signingConfigs.release' flutter/android/app/build.gradle; then
  sed -i 's|signingConfig signingConfigs.release|signingConfig keystorePropertiesFile.exists() ? signingConfigs.release : signingConfigs.debug|' flutter/android/app/build.gradle
fi

# --- APK ---
# Gradle 7.6.4 не совместим с Java 21 (дефолт VM) -> используем Java 17 (как RustDesk CI).
export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64
export PATH="$JAVA_HOME/bin:$PATH"
echo "[apk] flutter build apk (JAVA_HOME=$JAVA_HOME) ..."
( cd flutter && flutter build apk --release --target-platform android-arm64 --split-per-abi )

# --- вынести артефакт ---
DIST="$ROOT/dist"; mkdir -p "$DIST"
APK="flutter/build/app/outputs/flutter-apk/app-arm64-v8a-release.apk"
OUT="$DIST/rustdesk-$TAG-arm64.apk"
cp "$SRC/$APK" "$OUT"
echo "ГОТОВО: $OUT ($(du -h "$OUT" | cut -f1))"