name: Build

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
  workflow_dispatch:

env:
  GODOT_VERSION: "4.3"
  PROJECT_NAME: chemo-sim

jobs:
  build:
    name: Export ${{ matrix.platform }}
    # Node-capable image so JS actions (checkout, upload-artifact) work on Gitea act_runner.
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        include:
          - platform: windows
            preset: "Windows Desktop"
            output: chemo-sim.exe
          - platform: linux
            preset: "Linux"
            output: chemo-sim.x86_64
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          lfs: true

      - name: Install Godot ${{ env.GODOT_VERSION }} + export templates
        run: |
          set -euxo pipefail
          GODOT_REL="${GODOT_VERSION}-stable"
          BASE="https://github.com/godotengine/godot/releases/download/${GODOT_REL}"
          # Editor (headless export uses the editor binary)
          curl -fSL -o godot.zip "${BASE}/Godot_v${GODOT_REL}_linux.x86_64.zip"
          unzip -o godot.zip
          mv "Godot_v${GODOT_REL}_linux.x86_64" /usr/local/bin/godot
          chmod +x /usr/local/bin/godot
          godot --version
          # Export templates
          curl -fSL -o templates.tpz "${BASE}/Godot_v${GODOT_REL}_export_templates.tpz"
          unzip -o templates.tpz
          TPL_DIR="${HOME}/.local/share/godot/export_templates/${GODOT_VERSION}.stable"
          mkdir -p "${TPL_DIR}"
          mv templates/* "${TPL_DIR}/"

      - name: Import project (build resource cache)
        run: godot --headless --import
        continue-on-error: true

      - name: Export ${{ matrix.platform }}
        run: |
          set -euxo pipefail
          mkdir -p "build/${{ matrix.platform }}"
          godot --headless --export-release "${{ matrix.preset }}" "build/${{ matrix.platform }}/${{ matrix.output }}"

      - name: Upload artifact
        uses: actions/upload-artifact@v3
        with:
          name: ${{ env.PROJECT_NAME }}-${{ matrix.platform }}
          path: build/${{ matrix.platform }}/
          if-no-files-found: error
          retention-days: 14