name: wasm-pack workflow
on:
  push:
    paths:
      - 'lib/src/lib.rs'
      - '.github/workflows/wasm-pack.yml'

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Check out repository
      uses: actions/checkout@v2

    - name: Compile Rust project with wasm-pack
      run: |
        curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh
        wasm-pack build lib/ --release --target web

    - name: Copy necessary files and stage them
      run: |
        cp lib/pkg/editpix_wasm_bg.wasm src/core/editpix_wasm_bg.wasm
        cp lib/pkg/editpix_wasm.js src/core/editpix_wasm.js
        rm -r lib/pkg
        git add *

    - name: Check for changes
      id: check_changes
      run: |
        if git diff --quiet --exit-code; then
          echo "No changes detected. Exiting workflow."
          echo "::set-output name=changes::false"
          exit 0; # Exit with success code
        else
          echo "::set-output name=changes::true"
        fi

    - name: Commit build results
      if: steps.check_changes.outputs.changes == 'true'
      run: |
        git config --local user.email "github-actions[bot]@users.noreply.github.com"
        git config --local user.name "github-actions[bot]"
        git commit -m "CI push"

    - name: Push changes
      if: steps.check_changes.outputs.changes == 'true'
      uses: ad-m/github-push-action@master