arazzo: 1.0.1
info:
  title: Microsoft Windows 10 Storage Read and Update File
  summary: List files in a known folder, inspect the first file, read its text content, and write updated content back.
  description: >-
    A file read-modify-write flow built on the Windows.Storage namespace. The
    workflow lists files of a given type in a known folder, selects the first
    file, fetches its detailed StorageFile properties, reads its text content,
    and then writes updated text back to the same file. Every step inlines its
    request and documents the response status it keys on so the flow can be
    executed without opening the OpenAPI description.
  version: 1.0.0
sourceDescriptions:
- name: storageApi
  url: ../openapi/microsoft-windows-10-storage-openapi.yml
  type: openapi
workflows:
- workflowId: read-and-update-file
  summary: Locate a file in a known folder, read it, and write updated content back.
  description: >-
    Lists files in the requested known folder, inspects and reads the first
    matching file, and writes new text content back to that same file.
  inputs:
    type: object
    required:
    - folderId
    - newContent
    properties:
      folderId:
        type: string
        description: Known folder to list files from.
        enum:
        - Documents
        - Pictures
        - Music
        - Videos
        - Downloads
        - LocalAppData
        - RoamingAppData
        - TempState
        default: Documents
      fileType:
        type: string
        description: Optional file extension filter (e.g. .txt).
      newContent:
        type: string
        description: New text content to write back to the file.
  steps:
  - stepId: listFiles
    description: >-
      List files of the requested type in the known folder and capture the first
      file's path as the working file id.
    operationId: listStorageFiles
    parameters:
    - name: folderId
      in: query
      value: $inputs.folderId
    - name: fileType
      in: query
      value: $inputs.fileType
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      fileId: $response.body#/0/path
      fileName: $response.body#/0/name
  - stepId: getFile
    description: >-
      Fetch detailed properties for the selected file, including size and
      modification time.
    operationId: getStorageFile
    parameters:
    - name: fileId
      in: path
      value: $steps.listFiles.outputs.fileId
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      size: $response.body#/size
      contentType: $response.body#/contentType
      dateModified: $response.body#/dateModified
  - stepId: readContent
    description: >-
      Read the current text content of the file before overwriting it.
    operationId: readFileContent
    parameters:
    - name: fileId
      in: path
      value: $steps.listFiles.outputs.fileId
    - name: readMode
      in: query
      value: text
    successCriteria:
    - condition: $statusCode == 200
    outputs:
      currentText: $response.body#/text
      encoding: $response.body#/encoding
  - stepId: writeContent
    description: >-
      Write the new text content back to the same file using a UTF-8 text write.
    operationId: writeFileContent
    parameters:
    - name: fileId
      in: path
      value: $steps.listFiles.outputs.fileId
    requestBody:
      contentType: application/json
      payload:
        content: $inputs.newContent
        encoding: UTF-8
        writeMode: text
    successCriteria:
    - condition: $statusCode == 200
  outputs:
    fileId: $steps.listFiles.outputs.fileId
    fileName: $steps.listFiles.outputs.fileName
    previousText: $steps.readContent.outputs.currentText
    size: $steps.getFile.outputs.size