name: Build Solo Sim (WASM)

# Builds the companion_radio browser sim (real firmware compiled to WASM via
# Emscripten, see variants/sim/) -- the OLED ui-new build, the L1 E-ink's,
# the Wio Tracker L2 ui-lvgl build and the repeater -- and attaches it to the
# same draft release build-solo-firmwares.yml creates for this tag, as a single fixed-name
# asset: solo-sim-wasm.zip. Fixed name (no version in it) so
# meshcore-solo-site's server-side deploy script can always fetch it from
# the stable "latest release" download URL without knowing the tag --
# see meshcore-solo-site/scripts/fetch-wasm-release.sh.
#
# Independent job/workflow from the hardware firmware builds: different
# toolchain (Emscripten, not PlatformIO), and a WASM build failure shouldn't
# block or delay the actual firmware release.

permissions:
  contents: write

on:
  workflow_dispatch:
  push:
    tags:
      - 'v*'

jobs:
  build-sim-wasm:
    runs-on: ubuntu-latest
    steps:
      - name: Clone Repo
        uses: actions/checkout@v4

      - name: Cache emsdk
        uses: actions/cache@v4
        with:
          path: variants/sim/tools/emsdk
          key: emsdk-6.0.9-${{ runner.os }}

      - name: Install emsdk 6.0.9
        run: |
          if [ ! -x variants/sim/tools/emsdk/upstream/emscripten/em++ ]; then
            rm -rf variants/sim/tools/emsdk
            git clone --depth 1 https://github.com/emscripten-core/emsdk.git variants/sim/tools/emsdk
            cd variants/sim/tools/emsdk
            python3 ./emsdk.py install 6.0.9
            python3 ./emsdk.py activate 6.0.9
          else
            echo "emsdk 6.0.9 already cached"
          fi

      - name: Resolve build version
        run: |
          if [ "$GITHUB_REF_TYPE" = "tag" ]; then
            echo "BUILD_VERSION=${GITHUB_REF_NAME}" >> $GITHUB_ENV
          else
            echo "BUILD_VERSION=dev-$(git rev-parse --short HEAD)" >> $GITHUB_ENV
          fi

      - name: Build companion WASM
        env:
          FIRMWARE_VERSION: ${{ env.BUILD_VERSION }}
        run: variants/sim/build_wasm.sh

      # LVGL at the version the L2 firmware pins, straight from its repo --
      # no PlatformIO needed just for the sources.
      - name: Fetch LVGL
        run: |
          LV_VER="$(grep -m1 -oE 'lvgl/lvgl @ [0-9.]+' solo/wio-tracker-l2/platformio.ini | awk '{print $3}')"
          echo "LVGL $LV_VER"
          git clone --depth 1 --branch "v$LV_VER" https://github.com/lvgl/lvgl.git "$RUNNER_TEMP/lvgl"

      - name: Build L2 (LVGL) WASM
        env:
          FIRMWARE_VERSION: ${{ env.BUILD_VERSION }}
          SIM_UI: lvgl
          LVGL_DIR: ${{ runner.temp }}/lvgl
        run: variants/sim/build_wasm.sh

      # The L1 E-ink's two builds, landscape (8x13 font) and portrait (6x9);
      # the site offers both beside the OLED and the L2.
      - name: Build E-ink WASM (landscape)
        env:
          FIRMWARE_VERSION: ${{ env.BUILD_VERSION }}
          SIM_EINK: landscape
        run: variants/sim/build_wasm.sh

      - name: Build E-ink WASM (portrait)
        env:
          FIRMWARE_VERSION: ${{ env.BUILD_VERSION }}
          SIM_EINK: portrait
        run: variants/sim/build_wasm.sh

      # The 4.2" 400x300 build (the site's "E-ink · 4.2″").
      - name: Build E-ink WASM (4.2")
        env:
          FIRMWARE_VERSION: ${{ env.BUILD_VERSION }}
          SIM_EINK: wide
        run: variants/sim/build_wasm.sh

      # The 4.26" 800x480 build (the site's "E-ink · Large").
      - name: Build E-ink WASM (4.26")
        env:
          FIRMWARE_VERSION: ${{ env.BUILD_VERSION }}
          SIM_EINK: big
        run: variants/sim/build_wasm.sh

      - name: Build repeater WASM
        run: variants/sim/build_wasm_repeater.sh

      - name: Package
        run: |
          mkdir -p out/wasm/companion out/wasm/lvgl out/wasm/eink out/wasm/repeater
          cp variants/sim/web/build/meshcore_sim.js variants/sim/web/build/meshcore_sim.wasm out/wasm/companion/
          cp variants/sim/web/build/meshcore_sim_lvgl.js variants/sim/web/build/meshcore_sim_lvgl.wasm out/wasm/lvgl/
          cp variants/sim/web/build/meshcore_sim_eink_landscape.js variants/sim/web/build/meshcore_sim_eink_landscape.wasm out/wasm/eink/
          cp variants/sim/web/build/meshcore_sim_eink_portrait.js variants/sim/web/build/meshcore_sim_eink_portrait.wasm out/wasm/eink/
          cp variants/sim/web/build/meshcore_sim_eink_wide.js variants/sim/web/build/meshcore_sim_eink_wide.wasm out/wasm/eink/
          cp variants/sim/web/build/meshcore_sim_eink_big.js variants/sim/web/build/meshcore_sim_eink_big.wasm out/wasm/eink/
          cp variants/sim/web/build/repeater/meshcore_sim_repeater.js variants/sim/web/build/repeater/meshcore_sim_repeater.wasm out/wasm/repeater/
          cd out && zip -r solo-sim-wasm.zip wasm

      - name: Attach to release
        if: startsWith(github.ref, 'refs/tags/')
        uses: softprops/action-gh-release@v2
        with:
          draft: true
          files: out/solo-sim-wasm.zip