backbone-bucket 0.3.1

Bucket Bounded Context: File Storage Module for Backbone Framework
Documentation 
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# Media Processing Workflow
# Handles thumbnail and preview generation for uploaded files.
#
# Extracted from file_upload.workflow.yaml (Phase 10 decomposition).
# Triggered by FileUploadedEvent — reusable by both FileUpload and MultipartUpload flows.

name: MediaProcessing
description: |
  Asynchronous media processing workflow triggered after a file is uploaded.
  Generates thumbnails and previews for images, videos, and documents.
  Reusable by any upload flow that emits FileUploadedEvent.

version: 1

trigger:
  event: FileUploadedEvent
  extract:
    file_id: "event.file_id"
    bucket_id: "event.bucket_id"
    owner_id: "event.owner_id"
    mime_type: "event.mime_type"

config:
  timeout: 15m
  persistence: true
  retry:
    max_attempts: 3
    backoff: exponential

context:
  file_id: null
  mime_type: null

steps:
  - name: check_media_type
    type: condition
    conditions:
      - if: "context.mime_type.starts_with('image/')"
        next: create_image_thumbnail
      - if: "context.mime_type.starts_with('video/')"
        next: create_video_thumbnail
      - if: "context.mime_type.contains('pdf') || context.mime_type.contains('document')"
        next: create_document_preview
      - else: true
        next: no_processing_needed

  - name: create_image_thumbnail
    type: action
    action: create
    entity: ProcessingJob
    params:
      file_id: "{{ context.file_id }}"
      job_type: thumbnail_generation
      priority: 5
    on_success:
      next: complete

  - name: create_video_thumbnail
    type: action
    action: create
    entity: ProcessingJob
    params:
      file_id: "{{ context.file_id }}"
      job_type: video_thumbnail
      priority: 5
    on_success:
      next: complete

  - name: create_document_preview
    type: action
    action: create
    entity: ProcessingJob
    params:
      file_id: "{{ context.file_id }}"
      job_type: document_preview
      priority: 4
    on_success:
      next: complete

  - name: no_processing_needed
    type: terminal
    status: completed
    result:
      processed: false
      reason: "Non-media file type, no processing required"

  - name: complete
    type: terminal
    status: completed
    result:
      processed: true
      file_id: "{{ context.file_id }}"