arazzo: 1.0.1
info:
  title: YouTube Video Engagement Report
  summary: Pull a video's statistics, its top comment thread, and the replies under that thread's top comment.
  description: >-
    Assembles an engagement snapshot for a single video. It reads the video's
    statistics, lists the comment threads on the video, captures the top-level
    comment id of the first thread, and lists the replies to that comment. Every
    step spells out its request inline so the flow can be read and executed
    without opening the underlying OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: youtubeDataApi
  url: ../openapi/youtube-data-api-openapi.yml
  type: openapi
workflows:
- workflowId: video-engagement-report
  summary: Combine video stats with its top comment thread and replies.
  description: >-
    Retrieves a video's statistics, lists its comment threads, and fetches the
    replies under the first thread's top-level comment.
  inputs:
    type: object
    required:
    - apiKey
    - videoId
    properties:
      apiKey:
        type: string
        description: The Google API key used to authorize each YouTube Data API request.
      videoId:
        type: string
        description: The id of the video to report on.
  steps:
  - stepId: getVideoStats
    description: Read the video's snippet and statistics.
    operationId: youtube.videos.list
    parameters:
    - name: part
      in: query
      value: snippet,statistics
    - name: id
      in: query
      value: $inputs.videoId
    - name: key
      in: query
      value: $inputs.apiKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      viewCount: $response.body#/items/0/statistics/viewCount
      commentCount: $response.body#/items/0/statistics/commentCount
  - stepId: listThreads
    description: List the comment threads on the video and capture the first thread's top-level comment id.
    operationId: youtube.commentThreads.list
    parameters:
    - name: part
      in: query
      value: snippet
    - name: videoId
      in: query
      value: $inputs.videoId
    - name: maxResults
      in: query
      value: 20
    - name: key
      in: query
      value: $inputs.apiKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      topCommentId: $response.body#/items/0/snippet/topLevelComment/id
      threadCount: $response.body#/pageInfo/totalResults
  - stepId: listReplies
    description: List the replies posted under the first thread's top-level comment.
    operationId: youtube.comments.list
    parameters:
    - name: part
      in: query
      value: snippet
    - name: parentId
      in: query
      value: $steps.listThreads.outputs.topCommentId
    - name: maxResults
      in: query
      value: 20
    - name: key
      in: query
      value: $inputs.apiKey
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      replies: $response.body#/items
  outputs:
    viewCount: $steps.getVideoStats.outputs.viewCount
    commentCount: $steps.getVideoStats.outputs.commentCount
    threadCount: $steps.listThreads.outputs.threadCount
    replies: $steps.listReplies.outputs.replies