name: 'PVF Trigger'
description: 'On a /pvf PR comment, resolve the candidate plugin version from the latest Build run and dispatch performance-validation.yml'

inputs:
  comment:
    description: 'Comment body to scan for a /pvf command'
    required: true
  pr-number:
    description: 'Pull request number the comment was posted on'
    required: true
  build-workflow:
    description: 'Filename of the build workflow that uploads the candidate-version artifact'
    required: false
    default: build.yml
  rule-prefixes:
    description: 'Space-separated rule-key prefixes passed to the /pvf comment parser'
    required: false
    default: 'S'

runs:
  using: 'composite'
  steps:
    - name: Parse /pvf comment
      id: pvf
      uses: SonarSource/core-languages-tooling-public/pvf-comment@master
      with:
        comment: ${{ inputs.comment }}
        rule-prefixes: ${{ inputs.rule-prefixes }}

    - name: Trigger performance validation
      if: steps.pvf.outputs.found == 'true'
      shell: bash
      env:
        GH_TOKEN: ${{ github.token }}
        PR_NUMBER: ${{ inputs.pr-number }}
        RULES_REQUEST: ${{ steps.pvf.outputs.rules-request }}
        BUILD_WORKFLOW: ${{ inputs.build-workflow }}
      run: |
        set -euo pipefail
        pull="$(gh api "repos/${GITHUB_REPOSITORY}/pulls/${PR_NUMBER}")"
        head_ref="$(jq -r .head.ref <<<"$pull")"
        head_sha="$(jq -r .head.sha <<<"$pull")"
        title="$(jq -r .title <<<"$pull")"
        run_ids="$(gh api \
          "repos/${GITHUB_REPOSITORY}/actions/workflows/${BUILD_WORKFLOW}/runs?head_sha=${head_sha}&event=pull_request&per_page=10" \
          --jq '.workflow_runs[].id')"

        for run_id in $run_ids; do
          if gh run download "$run_id" --repo "$GITHUB_REPOSITORY" -n candidate-version; then
            break
          fi
        done
        if [ ! -f candidate-version.txt ]; then
          echo "No candidate-version artifact for ${head_sha}; wait for Build to finish" >&2
          exit 1
        fi
        gh workflow run performance-validation.yml \
          --repo "$GITHUB_REPOSITORY" \
          --ref "$head_ref" \
          -f "candidate-version=$(cat candidate-version.txt)" \
          -f "rules-request=${RULES_REQUEST}" \
          -f "pr-number=${PR_NUMBER}" \
          -f "run-description=${title}"