name: Build and Release Firmware

on:
  push:
    tags:
      - "v*"

env:
  TARGET: thumbv8m.main-none-eabihf

jobs:
  build-and-release:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Rust Toolchain
        uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ env.TARGET }}

      - name: Install llvm-tools / objcopy
        run: rustup component add llvm-tools-preview

      - name: Build Firmware Binaries
        run: |
          cd firmware

          # Define the target features for each variant
          declare -A VARIANTS=(
            ["cs4398"]="cs4398,hid"
            ["ak4490"]="ak4490,hid"
            ["evk"]="evk,hid"
          )

          mkdir -p ../dist

          for name in "${!VARIANTS[@]}"; do
            features="${VARIANTS[$name]}"
            echo "Building variant: $name with features: $features"

            # 1. Compile release binary
            cargo build --release --target ${{ env.TARGET }} --no-default-features --features "$features"

            # 2. Extract paths
            ELF_PATH="../target/${{ env.TARGET }}/release/guac"
            HEX_PATH="../target/${{ env.TARGET }}/release/guac-${name}.hex"
            RENAMED_ELF="../target/${{ env.TARGET }}/release/guac-${name}.elf"

            # 3. Create .hex file using llvm-objcopy from Rust tools
            rust-objcopy -O ihex "$ELF_PATH" "$HEX_PATH"
            cp "$ELF_PATH" "$RENAMED_ELF"

            # 4. Package ELF and HEX into a target-specific ZIP
            ZIP_NAME="guac-firmware-${name}.zip"
            zip -j "../dist/${ZIP_NAME}" "$RENAMED_ELF" "$HEX_PATH"
          done

      - name: Create Gitea Release
        uses: gitea/release-action@v1
        with:
          key: ${{ secrets.GITHUB_TOKEN }}
          files: dist/*.zip
          draft: false
          prerelease: false