drop-app/.github/workflows/flatpak.yml

name: Flatpak

on:
  workflow_dispatch:
    inputs:
      release_tag:
        description: 'Release tag to build the Flatpak from (leave empty to build from current commit)'
        required: false
  release:
    types: [published]

# Builds the Drop Desktop Flatpak.
#
# Strategy: Companion to the main release workflow.
# On release, it downloads the pre-built .deb from the release assets,
# bundles system tray libraries from apt, and builds the Flatpak.
#
# For workflow_dispatch without a tag, it builds everything from source.

jobs:
  flatpak-build:
    runs-on: ubuntu-24.04
    permissions:
      contents: write

    steps:
      - uses: actions/checkout@v4
        with:
          submodules: true

      - name: Install Flatpak SDK
        run: |
          sudo apt-get update
          sudo apt-get install -y flatpak flatpak-builder
          flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

      - name: Install GNOME Platform 48
        run: |
          flatpak install --system flathub org.gnome.Platform//48 org.gnome.Sdk//48 -y

      - name: Install system tray libraries
        run: |
          sudo apt-get install -y \
            libayatana-appindicator3-dev \
            libdbusmenu-gtk3-dev

      - name: Setup pnpm
        uses: pnpm/action-setup@v4
        with:
          version: 10
          run_install: false

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: lts/*

      - name: Install Rust
        uses: dtolnay/rust-toolchain@stable

      - name: Rust cache
        uses: swatinem/rust-cache@v2
        with:
          workspaces: './src-tauri -> target'

      - name: Install system deps for Tauri
        run: |
          sudo apt-get install -y \
            libwebkit2gtk-4.1-dev \
            librsvg2-dev \
            patchelf \
            xdg-utils

      - name: Determine build mode
        id: build_mode
        run: |
          if [[ -n "${{ github.event.inputs.release_tag }}" ]]; then
            echo "source=release" >> "$GITHUB_OUTPUT"
            echo "tag=${{ github.event.inputs.release_tag }}" >> "$GITHUB_OUTPUT"
          elif [[ "${{ github.event_name }}" == "release" ]]; then
            echo "source=release" >> "$GITHUB_OUTPUT"
            echo "tag=${{ github.event.release.tag_name }}" >> "$GITHUB_OUTPUT"
          else
            echo "source=source" >> "$GITHUB_OUTPUT"
          fi

      # ── Mode A: Build from source (workflow_dispatch without tag) ──
      - name: (Source) Install frontend dependencies
        if: steps.build_mode.outputs.source == 'source'
        run: pnpm install

      - name: (Source) Build Tauri .deb
        if: steps.build_mode.outputs.source == 'source'
        run: pnpm tauri build --bundles deb

      # ── Mode B: Download from release ──
      - name: (Release) Download .deb from release
        if: steps.build_mode.outputs.source == 'release'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          TAG="${{ steps.build_mode.outputs.tag }}"
          gh release download "$TAG" --pattern '*_amd64.deb' --dir flatpak/
          # Rename to expected path

      # ── Common: Prepare inputs for flatpak-builder ──
      - name: Prepare libraries and .deb for Flatpak build
        run: |
          # Copy system tray libraries from host
          bash flatpak/prepare-libs.sh

          # If we downloaded from a release, rename to expected name
          if [ -z "$(ls flatpak/drop-app.deb 2>/dev/null)" ]; then
            if ls flatpak/*_amd64.deb 1>/dev/null 2>&1; then
              mv flatpak/*_amd64.deb flatpak/drop-app.deb
            else
              # Source build — create symlink
              bash flatpak/prepare-deb.sh
            fi
          fi

      - name: Build Flatpak
        uses: flatpak/flatpak-github-actions/flatpak-builder@v6
        with:
          bundle: org.droposs.client.flatpak
          manifest-path: flatpak/org.droposs.client.yml
          cache-key: flatpak-${{ github.event.release.tag_name || github.sha }}
          branch: master

      - name: Upload Flatpak to release
        if: steps.build_mode.outputs.source == 'release'
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          TAG="${{ steps.build_mode.outputs.tag }}"
          gh release upload "$TAG" org.droposs.client.flatpak

      - name: Upload Flatpak as workflow artifact
        if: steps.build_mode.outputs.source == 'source'
        uses: actions/upload-artifact@v4
        with:
          name: org.droposs.client-flatpak
          path: org.droposs.client.flatpak