name: Desktop Smoke Test

on:
  workflow_dispatch:
  pull_request:
    paths:
      - 'desktopApp/**'
      - '.github/workflows/smoke-test-desktop.yml'

permissions:
  contents: read

concurrency:
  group: smoke-desktop-${{ github.ref }}
  cancel-in-progress: true

jobs:
  # -------------------------------------------------------------------------
  # 1) Compose UI test — verifies the composable tree renders (login screen)
  #    under the dev classpath. Catches missing string resources, broken
  #    composables, and basic dependency-graph issues.
  # -------------------------------------------------------------------------
  compose-ui-test:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - name: Checkout code
        uses: actions/checkout@v6

      - name: Set up JDK 21
        uses: actions/setup-java@v5
        with:
          distribution: 'zulu'
          java-version: 21

      - name: Set up Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-read-only: true

      - name: Install xvfb
        run: sudo apt-get update && sudo apt-get install -y xvfb

      - name: Run desktop tests (including UI smoke test)
        run: xvfb-run --auto-servernum ./gradlew :desktopApp:test

  # -------------------------------------------------------------------------
  # 2) Release .deb build + launch — builds the ProGuard'd, jlink'd .deb
  #    package, installs it, and verifies the process stays alive for 10s.
  #    Catches ProGuard stripping (JNI, reflection), missing jlink modules
  #    (java.management, java.prefs), and native lib bundling issues.
  # -------------------------------------------------------------------------
  release-deb-launch:
    runs-on: ubuntu-latest
    timeout-minutes: 45
    steps:
      - name: Checkout code
        uses: actions/checkout@v6

      - name: Set up JDK 21
        uses: actions/setup-java@v5
        with:
          distribution: 'zulu'
          java-version: 21

      - name: Set up Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          cache-read-only: true

      - name: Cache vlc-setup downloads
        uses: actions/cache@v4
        with:
          path: ~/.gradle/vlcSetup
          key: vlcsetup-Linux-${{ hashFiles('desktopApp/build.gradle.kts') }}
          restore-keys: |
            vlcsetup-Linux-

      - name: Pre-fetch VLC + UPX archives
        env:
          VLC_VERSION: "3.0.20"
          UPX_VERSION: "4.2.4"
        run: |
          set -euo pipefail
          DEST="$HOME/.gradle/vlcSetup"
          mkdir -p "$DEST"
          fetch() {
            local url="$1" out="$2"
            if [[ -s "$out" ]]; then echo "cached: $out"; return 0; fi
            echo "fetching: $url"
            curl -fL --retry 10 --retry-delay 5 --retry-all-errors \
                 --retry-max-time 900 --connect-timeout 30 \
                 -o "$out.part" "$url"
            mv "$out.part" "$out"
          }
          fetch "https://repo1.maven.org/maven2/ir/mahozad/vlc-plugins-linux/${VLC_VERSION}/vlc-plugins-linux-${VLC_VERSION}.jar" \
                "$DEST/vlc-${VLC_VERSION}.jar"
          fetch "https://github.com/upx/upx/releases/download/v${UPX_VERSION}/upx-${UPX_VERSION}-amd64_linux.tar.xz" \
                "$DEST/upx-${UPX_VERSION}.tar.xz"

      - name: Install xvfb + packaging deps
        run: sudo apt-get update && sudo apt-get install -y xvfb fakeroot

      - name: Build release .deb
        uses: nick-fields/retry@ad984534de44a9489a53aefd81eb77f87c70dc60  # v4.0.0
        with:
          max_attempts: 2
          timeout_minutes: 20
          command: ./gradlew --no-daemon :desktopApp:packageReleaseDeb

      - name: Relax libicu dependency
        run: |
          set -euo pipefail
          chmod +x scripts/relax-deb-libicu.sh
          scripts/relax-deb-libicu.sh desktopApp/build/compose/binaries/main-release/deb/*.deb

      - name: Install .deb
        run: |
          # jpackage's post-install script runs xdg-desktop-menu which fails
          # on CI runners ("No writable system menu directory"). The files are
          # extracted successfully; only the menu registration fails. Allow the
          # dpkg error, then verify the binary was actually installed.
          sudo dpkg -i desktopApp/build/compose/binaries/main-release/deb/*.deb || true
          echo "Installed files:"
          dpkg -L amethyst | head -30
          # Fail if the binary wasn't actually extracted
          test -d /opt/amethyst || test -d /opt/Amethyst || {
            echo "FAIL: /opt/amethyst not found after dpkg -i"
            exit 1
          }

      - name: Smoke test — app launches and stays alive
        run: |
          set -euo pipefail

          # Find the launcher binary
          LAUNCHER=$(find /opt -name "Amethyst" -type f -executable 2>/dev/null | head -1)
          if [[ -z "$LAUNCHER" ]]; then
            # Fallback: search dpkg file list
            LAUNCHER=$(dpkg -L amethyst | grep -E '/bin/[Aa]methyst$' | head -1)
          fi
          if [[ -z "$LAUNCHER" ]]; then
            echo "FAIL: could not find Amethyst launcher binary"
            dpkg -L amethyst
            exit 1
          fi
          echo "Launcher: $LAUNCHER"

          # Launch under xvfb with a timeout safety net
          xvfb-run --auto-servernum timeout 30 "$LAUNCHER" &
          APP_PID=$!
          echo "PID: $APP_PID"

          # Wait 10s — if the process is still alive, the app launched successfully
          sleep 10

          if kill -0 "$APP_PID" 2>/dev/null; then
            echo "PASS: Application launched and stayed alive for 10s"
            kill "$APP_PID" || true
            wait "$APP_PID" 2>/dev/null || true
          else
            wait "$APP_PID" 2>/dev/null
            EXIT_CODE=$?
            echo "FAIL: Application exited with code $EXIT_CODE within 10s"
            exit 1
          fi

      - name: Upload .deb artifact (for manual testing)
        if: always()
        uses: actions/upload-artifact@v7
        with:
          name: Release DEB (smoke-tested)
          path: desktopApp/build/compose/binaries/main-release/deb/*.deb