name: Send notification via Google Chat
description: "Sends a notification to a Google Chat room when a pull request is opened."

inputs:
  webhook_url:
    description: "The URL of the Google Chat webhook."
    required: true

  title:
    description: "The title of the notification."
    required: true
    default: 'no title provided'

  event_author:
    description: "The author of the event."
    required: true
    default: 'unknown'

  event_title:
    description: "The title of the event."
    required: true

  event_body:
    description: "The body of the event."
    required: true
    default: 'no body provided'

  event_number:
    description: "The number of the event."
    required: true
    default: 'no number provided'

  event_url:
    description: "The url of the event."
    required: true
    default: 'none'

runs:
  using: "composite"
  steps:
#    - name: event list
#      shell: bash
#      run: |
#        cat <<'EOF'
#        ${{ toJSON(github) }}
#        EOF
#
#    - name: print env
#      shell: bash
#      run: |
#        env
#        exit 1

    - name: Install prerequisites
      shell: bash
      run: |
        echo "::group::apt install"
        set -e
        apt update
        apt install -y curl jq
        echo "::endgroup::"

    - name: Notify via Google Chat Webhook
      shell: bash
      env:
        WEBHOOK: ${{ inputs.webhook_url }}
      run: |
        set -e

        PAYLOAD=$(jq -n -r \
          --arg header "${{ inputs.title }}" \
          --arg repo "${{ github.repository || '' }}" \
          --arg title "${{ inputs.event_title || 'no event title given' }}" \
          --arg body "${{ inputs.event_body || 'no event body given' }}" \
          --arg author "${{ inputs.event_author || 'no event author given' }}" \
          --arg url "${{ inputs.event_url || github.repositoryUrl || github.server_url }}" \
          '{ "cardsV2": [ { "cardId": "notify-${{ github.run_id }}", "card": {
            "header": {
              "title": "\($header)",
              "subtitle": "Repo: \($repo)",
              "imageUrl": "https://cdn.jsdelivr.net/gh/homarr-labs/dashboard-icons/png/git.png",
              "imageType": "SQUARE"
            },
            "sections": [
              {
                "header": "\($title)",
                "collapsible": false,
                "widgets": [
                  {
                    "decoratedText": {
                      "icon": {
                        "knownIcon": "PERSON"
                      },
                      "text": "<b>Opened by:</b> \($author)"
                    }
                  },
                  {
                    "textParagraph": {
                      "text": "\($body)",
                      "maxLines": 2
                    }
                  }
                ]
              },
              {
                "widgets": [
                  {
                    "buttonList": {
                      "buttons": [
                        {
                          "text": "View Source Event",
                          "type": "FILLED",
                          "onClick": {
                            "openLink": {
                              "url": "\($url)"
                            }
                          }
                        }
                      ]
                    }
                  }
                ]
              }
            ]
          }} ] }')
        
        curl \
          --fail-with-body \
          -X POST \
          -H 'Content-Type: application/json' \
          "${{ inputs.webhook_url }}" \
          -d "${PAYLOAD}"