name: Build Algorithm

on: 
  push:
    branches:
      - 'satisfiability/*'
      - 'vehicle_routing/*'
      - 'knapsack/*'
      - 'test/satisfiability/*'
      - 'test/vehicle_routing/*'
      - 'test/knapsack/*'
      - 'dev/satisfiability/*'
      - 'dev/vehicle_routing/*'
      - 'dev/knapsack/*'

jobs:
  build_wasm:
    name: Compile Algorithm to WASM
    runs-on: ubuntu-latest
    permissions:
      contents: write
      statuses: write
    steps:
      - uses: actions/checkout@v4
      - name: Set Env Vars
        run: |
          CHALLENGE=`echo $GITHUB_REF_NAME | rev | cut -d/ -f2 | rev`
          ALGORITHM=`echo $GITHUB_REF_NAME | rev | cut -d/ -f1 | rev`
          WASM_PATH=tig-algorithms/wasm/${CHALLENGE}/${ALGORITHM}.wasm
          if [ -f $WASM_PATH ]; then
            echo "SKIP_JOB=true" >> $GITHUB_ENV
          else
            echo "SKIP_JOB=false" >> $GITHUB_ENV
          fi
          echo "CHALLENGE=$CHALLENGE" >> $GITHUB_ENV
          echo "ALGORITHM=$ALGORITHM" >> $GITHUB_ENV
          echo "WASM_PATH=$ALGORITHM" >> $GITHUB_ENV
      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: wasm32-wasi
      - name: Cargo Build
        if: env.SKIP_JOB != 'true' 
        run: >
          CHALLENGE=${{ env.CHALLENGE }}
          ALGORITHM=${{ env.ALGORITHM }}
          cargo build -p tig-wasm --target wasm32-wasi --release --features entry-point;
          mkdir -p tig-algorithms/wasm/${{ env.CHALLENGE }};
      - name: Optimize WASM
        if: env.SKIP_JOB != 'true'
        uses: NiklasEi/wasm-opt-action@v2
        with:
          file: target/wasm32-wasi/release/tig_wasm.wasm
          output: tig-algorithms/wasm/${{ env.CHALLENGE }}/${{ env.ALGORITHM }}.wasm
          options: -O2 --remove-imports
      - name: Auto commit
        if: env.SKIP_JOB != 'true'
        id: auto_commit
        uses: stefanzweifel/git-auto-commit-action@v5
        with:
          commit_message: Compiled algorithm ${{ env.ALGORITHM }} into WASM
      - name: Update Commit Status (Success)
        if: env.SKIP_JOB != 'true' && success()
        uses: myrotvorets/set-commit-status-action@master
        with:
          status: 'success'
          sha: ${{ steps.auto_commit.outputs.commit_hash }}
      - name: Update Commit Status (Failure)
        if: env.SKIP_JOB != 'true' && failure()
        uses: myrotvorets/set-commit-status-action@master
        with:
          status: 'failure'