name: Code Coverage

env:
  CARGO_TERM_COLOR: always
  ACTION_RUN_URL: ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}
  RUSTFLAGS: "-C target-cpu=native"

on:
  # Allows you to run this workflow manually from the Actions tab as an alternative.
  workflow_dispatch:
    # All the inputs are provided by Slab
    inputs:
      instance_id:
        description: "AWS instance ID"
        type: string
      instance_image_id:
        description: "AWS instance AMI ID"
        type: string
      instance_type:
        description: "AWS instance product type"
        type: string
      runner_name:
        description: "Action runner name"
        type: string
      request_id:
        description: 'Slab request ID'
        type: string
      fork_repo:
        description: 'Name of forked repo as user/repo'
        type: string
      fork_git_sha:
        description: 'Git SHA to checkout from fork'
        type: string

jobs:
  code-coverage:
    concurrency:
      group: ${{ github.workflow }}_${{ github.ref }}_${{ inputs.instance_image_id }}_${{ inputs.instance_type }}
      cancel-in-progress: true
    runs-on: ${{ inputs.runner_name }}
    steps:
      # Step used for log purpose.
      - name: Instance configuration used
        run: |
          echo "ID: ${{ inputs.instance_id }}"
          echo "AMI: ${{ inputs.instance_image_id }}"
          echo "Type: ${{ inputs.instance_type }}"
          echo "Request ID: ${{ inputs.request_id }}"
          echo "Fork repo: ${{ inputs.fork_repo }}"
          echo "Fork git sha: ${{ inputs.fork_git_sha }}"

      - name: Checkout tfhe-rs
        uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9
        with:
          repository: ${{ inputs.fork_repo }}
          ref: ${{ inputs.fork_git_sha }}

      - name: Set up home
        run: |
          echo "HOME=/home/ubuntu" >> "${GITHUB_ENV}"

      - name: Install latest stable
        uses: actions-rs/toolchain@16499b5e05bf2e26879000db0c1d13f7e13fa3af
        with:
          toolchain: stable
          default: true

      - name: Check for file changes
        id: changed-files
        uses: tj-actions/changed-files@246636f5fa148b5ad8e65ca4c57b18af3123e5f6
        with:
          files_yaml: |
            tfhe:
              - tfhe/src/**
            concrete_csprng:
              - concrete-csprng/src/**

      - name: Generate Keys
        run: |
          make GEN_KEY_CACHE_COVERAGE_ONLY=TRUE gen_key_cache

      - name: Run shortint coverage
        if: steps.changed-files.outputs.tfhe_any_changed == 'true'
        run: |
          make test_shortint_cov

      - name: Upload tfhe coverage to Codecov
        uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d
        if: steps.changed-files.outputs.tfhe_any_changed == 'true'
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          fail_ci_if_error: true
          files: ./coverage/shortint/cobertura.xml

      - name: Slack Notification
        if: ${{ failure() }}
        continue-on-error: true
        uses: rtCamp/action-slack-notify@12e36fc18b0689399306c2e0b3e0f2978b7f1ee7
        env:
          SLACK_COLOR: ${{ job.status }}
          SLACK_CHANNEL: ${{ secrets.SLACK_CHANNEL }}
          SLACK_ICON: https://pbs.twimg.com/profile_images/1274014582265298945/OjBKP9kn_400x400.png
          SLACK_MESSAGE: "Code coverage finished with status: ${{ job.status }}. (${{ env.ACTION_RUN_URL }})"
          SLACK_USERNAME: ${{ secrets.BOT_USERNAME }}
          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}