action.yml

name: "Prly — PR Summary"
description: "Fetch merged PRs, filter by modules, generate an AI summary, and send it via email, webhook, or MS Teams."
author: "mohammadKarimi"

branding:
  icon: "book-open"
  color: "blue"

# ─── Inputs ───────────────────────────────────────────────────────────────────

inputs:
  # ── Date range ──────────────────────────────────────────────────────────────
  since:
    description: "Start date (YYYY-MM-DD). Defaults to yesterday."
    required: false
    default: ""
  until:
    description: "End date (YYYY-MM-DD). Defaults to today."
    required: false
    default: ""

  # ── GitHub ──────────────────────────────────────────────────────────────────
  github-token:
    description: "GitHub Personal Access Token with `repo` read scope. Use secrets.GITHUB_TOKEN for public repos."
    required: true
  github-owner:
    description: "GitHub organisation or user that owns the repository."
    required: true
  github-repo:
    description: "Repository name (without the owner prefix)."
    required: true
  github-api-base-url:
    description: "GitHub API base URL. Override for GitHub Enterprise Server."
    required: false
    default: "https://api.github.com"
  filter-modules:
    description: "Comma-separated directory prefixes to filter PRs to your areas (e.g. src/features/auth,src/payments)."
    required: false
    default: ""

  # ── AI ──────────────────────────────────────────────────────────────────────
  ai:
    description: "Set to 'true' to generate an AI summary via OpenAI."
    required: false
    default: "false"
  openai-api-key:
    description: "OpenAI API key. Required when ai is true."
    required: false
    default: ""
  output-language:
    description: "Language for the AI-generated summary (e.g. English, Persian, Spanish)."
    required: false
    default: "English"
  custom-prompt:
    description: "Custom system prompt sent to OpenAI. Leave blank to use the built-in default."
    required: false
    default: ""

  # ── Email ────────────────────────────────────────────────────────────────────
  email:
    description: "Set to 'true' to send the summary by email."
    required: false
    default: "false"
  email-receiver:
    description: "Recipient email address(es), comma-separated."
    required: false
    default: ""
  smtp-user:
    description: "SMTP sender address / username."
    required: false
    default: ""
  smtp-pass:
    description: "SMTP password."
    required: false
    default: ""
  smtp-host:
    description: "SMTP host."
    required: false
    default: ""
  smtp-port:
    description: "SMTP port."
    required: false
    default: "587"
  smtp-secure:
    description: "Use TLS (true/false)."
    required: false
    default: "false"

  # ── Webhook ──────────────────────────────────────────────────────────────────
  webhook:
    description: "Set to 'true' to post the summary to a webhook URL."
    required: false
    default: "false"
  webhook-url:
    description: "Webhook URL to POST the summary to."
    required: false
    default: ""

  # ── MS Teams ─────────────────────────────────────────────────────────────────
  ms-teams:
    description: "Set to 'true' to post the summary to MS Teams. Sends an Adaptive Card when ai is also true."
    required: false
    default: "false"
  ms-teams-webhook-url:
    description: "Microsoft Teams Incoming Webhook URL."
    required: false
    default: ""

# ─── Outputs ──────────────────────────────────────────────────────────────────

outputs:
  summary:
    description: "The generated PR summary text."

# ─── Implementation ───────────────────────────────────────────────────────────

runs:
  using: "composite"
  steps:
    - name: Set up Node.js
      uses: actions/setup-node@v4
      with:
        node-version: "20"

    - name: Install Prly
      shell: bash
      run: npm install -g @prly/prly@0.1.9

    - name: Write Prly config
      shell: bash
      run: |
        node -e "
        const os = require('os');
        const path = require('path');
        const fs = require('fs');

        const modules = '${{ inputs.filter-modules }}'
          .split(',').map(s => s.trim()).filter(Boolean);

        const config = {
          github: {
            owner: '${{ inputs.github-owner }}',
            repo:  '${{ inputs.github-repo }}',
            token: '${{ inputs.github-token }}',
            ...(('${{ inputs.github-api-base-url }}' && '${{ inputs.github-api-base-url }}' !== 'https://api.github.com')
              ? { apiBaseUrl: '${{ inputs.github-api-base-url }}' } : {}),
            filterModules: modules,
          },
          ...('${{ inputs.openai-api-key }}' ? { openai: { apiKey: '${{ inputs.openai-api-key }}' } } : {}),
          integrations: {
            ...('${{ inputs.email-receiver }}' || '${{ inputs.smtp-user }}' ? {
              email: {
                ...('${{ inputs.email-receiver }}' ? { reciever: '${{ inputs.email-receiver }}'.split(',').map(s=>s.trim()).filter(Boolean) } : {}),
                smtp: {
                  ...('${{ inputs.smtp-user }}' ? { user: '${{ inputs.smtp-user }}' } : {}),
                  ...('${{ inputs.smtp-pass }}' ? { pass: '${{ inputs.smtp-pass }}' } : {}),
                  ...('${{ inputs.smtp-host }}' ? { host: '${{ inputs.smtp-host }}' } : {}),
                  port: parseInt('${{ inputs.smtp-port }}', 10) || 587,
                  secure: '${{ inputs.smtp-secure }}' === 'true',
                },
              },
            } : {}),
            ...('${{ inputs.webhook-url }}' ? { webhook: { url: '${{ inputs.webhook-url }}' } } : {}),
            ...('${{ inputs.ms-teams-webhook-url }}' ? { msTeams: { webhookUrl: '${{ inputs.ms-teams-webhook-url }}' } } : {}),
          },
          llmOptions: {
            outputLanguage: '${{ inputs.output-language }}' || 'English',
            ...('${{ inputs.custom-prompt }}' ? { prompt: '${{ inputs.custom-prompt }}' } : {}),
          },
        };

        fs.writeFileSync(
          path.join(os.homedir(), '.prly.config.json'),
          JSON.stringify(config, null, 2)
        );
        console.log('✅ Prly config written.');
        "

    - name: Run Prly
      shell: bash
      id: prly
      run: |
        ARGS="run"
        [[ -n "${{ inputs.since }}" ]] && ARGS="$ARGS --since ${{ inputs.since }}"
        [[ -n "${{ inputs.until }}" ]] && ARGS="$ARGS --until ${{ inputs.until }}"
        [[ "${{ inputs.ai }}"       == "true" ]] && ARGS="$ARGS --ai"
        [[ "${{ inputs.email }}"    == "true" ]] && ARGS="$ARGS --email"
        [[ "${{ inputs.webhook }}"  == "true" ]] && ARGS="$ARGS --webhook"
        [[ "${{ inputs.ms-teams }}" == "true" ]] && ARGS="$ARGS --ms-teams"

        OUTPUT=$(prly $ARGS)
        echo "$OUTPUT"

        # Expose multi-line output safely
        EOF=$(dd if=/dev/urandom bs=15 count=1 2>/dev/null | base64)
        echo "summary<<$EOF" >> "$GITHUB_OUTPUT"
        echo "$OUTPUT"       >> "$GITHUB_OUTPUT"
        echo "$EOF"          >> "$GITHUB_OUTPUT"