#!/usr/bin/env bash
# Align Tauri Android project with locally installed SDK (offline builds).
set -euo pipefail

ANDROID_GEN="${1:-/workspace/tauri_app/src-tauri/gen/android}"
ANDROID_HOME="${ANDROID_HOME:-/opt/android-sdk}"
ANDROID_SDK_ROOT="${ANDROID_SDK_ROOT:-${ANDROID_HOME}}"

if [ ! -d "${ANDROID_GEN}" ]; then
  echo "Android project not found: ${ANDROID_GEN}" >&2
  exit 1
fi

if [ ! -d "${ANDROID_HOME}/platforms" ] && [ -d /opt/android-sdk-linux/platforms ]; then
  ANDROID_HOME="/opt/android-sdk-linux"
  ANDROID_SDK_ROOT="${ANDROID_HOME}"
fi

if [ ! -d "${ANDROID_HOME}/platforms" ]; then
  echo "Android platforms not found in ${ANDROID_HOME}/platforms" >&2
  exit 1
fi

SDK_LEVEL="$(
  find "${ANDROID_HOME}/platforms" -mindepth 1 -maxdepth 1 -type d -name 'android-*' \
    | sed 's|.*/android-||' \
    | sort -n \
    | tail -n 1
)"

if [ -z "${SDK_LEVEL}" ]; then
  echo "Не удалось определить установленный Android SDK platform" >&2
  exit 1
fi

APP_BUILD="${ANDROID_GEN}/app/build.gradle.kts"
if [ -f "${APP_BUILD}" ]; then
  sed -i -E "s/compileSdk = [0-9]+/compileSdk = ${SDK_LEVEL}/g" "${APP_BUILD}"
  sed -i -E "s/targetSdk = [0-9]+/targetSdk = ${SDK_LEVEL}/g" "${APP_BUILD}"
fi

GRADLE_PROPS="${ANDROID_GEN}/gradle.properties"
touch "${GRADLE_PROPS}"
if ! grep -q '^android.builder.sdkDownload=' "${GRADLE_PROPS}"; then
  printf '\n# Offline / isolated network: do not download SDK packages from Google\nandroid.builder.sdkDownload=false\n' >> "${GRADLE_PROPS}"
else
  sed -i 's/^android.builder.sdkDownload=.*/android.builder.sdkDownload=false/' "${GRADLE_PROPS}"
fi

cat > "${ANDROID_GEN}/local.properties" <<EOF
## Autogenerated for offline Docker build. Do not commit.
sdk.dir=${ANDROID_HOME}
EOF

echo "==> Android SDK patched: compileSdk/targetSdk=${SDK_LEVEL}, sdk.dir=${ANDROID_HOME}, sdkDownload=false"