action.yml

name: "Entropy Loop Core"
description: >-
  Compare a baseline and current regression report, write a local CI evidence
  bundle, and optionally append a step summary. No GitHub API, no token.
branding:
  icon: "check-circle"
  color: "purple"

inputs:
  baseline-report:
    description: "Path to the baseline regression JSON report."
    required: true
  current-report:
    description: "Path to the current regression JSON report."
    required: true
  fail-on:
    description: "Failure policy: new-failures, any-failures, or never."
    required: false
    default: "new-failures"
  evidence-dir:
    description: "Directory to write the CI evidence bundle into."
    required: false
    default: "entropy-loop-evidence"
  json-report:
    description: "Extra path to also write the triage JSON."
    required: false
    default: "entropy-loop-evidence/triage.json"
  markdown-report:
    description: "Extra path to also write the triage Markdown."
    required: false
    default: "entropy-loop-evidence/triage.md"
  junit-report:
    description: "Optional path to write a JUnit XML report. Empty means none."
    required: false
    default: ""
  html-report:
    description: "Optional path to write a self-contained HTML report. Empty means none."
    required: false
    default: ""
  html-locale:
    description: "Locale for the optional HTML report. Supported values: en, ko."
    required: false
    default: "en"
  write-step-summary:
    description: "Append a summary to the GitHub Actions step summary."
    required: false
    default: "true"
  install-package:
    description: "Install entropy-loop-core from PyPI before running."
    required: false
    default: "true"
  package-version:
    description: "Specific entropy-loop-core version to install (optional)."
    required: false
    default: ""
  python-command:
    description: "Python command to use for install and run."
    required: false
    default: "python3"

runs:
  using: "composite"
  steps:
    - name: Install entropy-loop-core
      if: ${{ inputs.install-package == 'true' }}
      shell: bash
      run: |
        PACKAGE_VERSION="${{ inputs.package-version }}"
        PYTHON_COMMAND="${{ inputs.python-command }}"

        # Reproducibility: with no explicit version, pin to the semver tag the
        # Action is used at (GITHUB_ACTION_REF, e.g. v0.8.0). Branch refs such as
        # main fall back to the latest published package. No GitHub API, no token.
        if [ -n "$PACKAGE_VERSION" ]; then
          PACKAGE_SPEC="entropy-loop-core==$PACKAGE_VERSION"
        elif echo "${GITHUB_ACTION_REF:-}" | grep -Eq '^v[0-9]+\.[0-9]+\.[0-9]+$'; then
          ACTION_VERSION="${GITHUB_ACTION_REF#v}"
          PACKAGE_SPEC="entropy-loop-core==$ACTION_VERSION"
        else
          PACKAGE_SPEC="entropy-loop-core"
        fi

        "$PYTHON_COMMAND" -m pip install --upgrade pip
        "$PYTHON_COMMAND" -m pip install "$PACKAGE_SPEC"

    - name: Write Entropy Loop CI evidence
      shell: bash
      run: |
        ARGS=(
          "${{ inputs.baseline-report }}"
          "${{ inputs.current-report }}"
          --fail-on "${{ inputs.fail-on }}"
          --evidence-dir "${{ inputs.evidence-dir }}"
          --json-report "${{ inputs.json-report }}"
          --markdown-report "${{ inputs.markdown-report }}"
        )
        if [ -n "${{ inputs.junit-report }}" ]; then
          ARGS+=(--junit-report "${{ inputs.junit-report }}")
        fi
        if [ -n "${{ inputs.html-report }}" ]; then
          ARGS+=(--html-report "${{ inputs.html-report }}")
          ARGS+=(--html-locale "${{ inputs.html-locale }}")
        fi
        if [ "${{ inputs.write-step-summary }}" = "true" ]; then
          ARGS+=(--append-github-step-summary)
        else
          ARGS+=(--no-step-summary)
        fi
        entropy-loop write-ci-evidence "${ARGS[@]}"