action.yml

name: Deploy Preview
description: Checkout, install, build, deploy preview files, and write preview metadata for a Selflify site.

inputs:
  node-version:
    required: true
    description: Node.js version used for the build.
  setup-cmd:
    required: false
    description: Optional command used to prepare the package manager or toolchain.
    default: ''
  install-cmd:
    required: true
    description: Command used to install dependencies.
  build-cmd:
    required: true
    description: Command used to build the site.
  site:
    required: true
    description: Site name or subdomain managed by Selflify.
  path-name:
    required: true
    description: Preview path name.
  output:
    required: true
    description: Build output directory.
  preview-base-domain:
    required: true
    description: Base domain used by Selflify, for example example.dev.
  preview-root-dir:
    required: false
    description: Preview root directory on the server.
    default: /var/www
  preview-server-host:
    required: true
    description: Preview server hostname or IP.
  preview-ssh-user:
    required: false
    description: SSH user used to access the preview server.
    default: root
  preview-ssh-private-key:
    required: true
    description: SSH private key for preview server access.
  pr-number:
    required: false
    description: Pull request number used to decide whether metadata should be created.
    default: ''

outputs:
  build-duration-seconds:
    description: Build duration in seconds.
    value: ${{ steps.build_duration.outputs.seconds }}
  metadata-file:
    description: Path to generated preview metadata JSON file.
    value: ${{ steps.preview_metadata.outputs.file }}

runs:
  using: composite
  steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Setup Node.js
      if: ${{ !env.ACT }}
      uses: actions/setup-node@v4
      with:
        node-version: ${{ inputs.node-version }}

    - name: Setup toolchain
      if: ${{ inputs.setup-cmd != '' }}
      shell: bash
      run: ${{ inputs.setup-cmd }}

    - name: Install dependencies
      shell: bash
      run: ${{ inputs.install-cmd }}

    - name: Start build timer
      id: build_timer
      shell: bash
      run: echo "started_at=$(date +%s)" >> "$GITHUB_OUTPUT"

    - name: Build ${{ inputs.site }}
      shell: bash
      run: ${{ inputs.build-cmd }}

    - name: Capture build duration
      if: ${{ always() }}
      id: build_duration
      shell: bash
      env:
        STARTED_AT: ${{ steps.build_timer.outputs.started_at }}
      run: |
        if [[ -n "$STARTED_AT" ]]; then
          echo "seconds=$(( $(date +%s) - STARTED_AT ))" >> "$GITHUB_OUTPUT"
        else
          echo "seconds=" >> "$GITHUB_OUTPUT"
        fi

    - name: Deploy ${{ inputs.site }}
      uses: Selflify/preview-rsync-action@v1
      with:
        ssh-private-key: ${{ inputs.preview-ssh-private-key }}
        preview-server-host: ${{ inputs.preview-server-host }}
        preview-ssh-user: ${{ inputs.preview-ssh-user }}
        preview-root-dir: ${{ inputs.preview-root-dir }}
        site: ${{ inputs.site }}
        path-name: ${{ inputs.path-name }}
        output: ${{ inputs.output }}

    - name: Save preview metadata
      if: ${{ inputs.pr-number != '' }}
      id: preview_metadata
      uses: Selflify/preview-metadata-action@v1
      with:
        site: ${{ inputs.site }}
        path-name: ${{ inputs.path-name }}
        preview-base-domain: ${{ inputs.preview-base-domain }}
        build-duration-seconds: ${{ steps.build_duration.outputs.seconds }}