openapi: 3.1.0
info:
  title: DV Edu LMS — Activity submissions
  version: 0.1.0
  description: |
    Student work from education apps → Classroom Hub.
    Auth is the Edu session (same token as mcp-proxy). activityId/studentId are bound from the session.
servers:
  - url: https://edu.daven.ai/api/v1
    description: Production Hub API
  - url: http://localhost:3001/api/v1
    description: Local Hub API
security:
  - EduSessionBearer: []
  - EduSessionHeader: []
paths:
  /activities/{activityId}/submissions:
    post:
      tags: [Submissions]
      summary: Submit student work (URL envelope)
      operationId: createActivitySubmission
      parameters:
        - name: activityId
          in: path
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: "#/components/schemas/ActivitySubmissionEnvelope"
            example:
              title: 벚꽃 시화
              summary: 학생 시 + 이미지·낭독·음악
              primaryUrl: https://cdn.example/cover.png
              assets:
                - role: cover
                  url: https://cdn.example/cover.png
                  mimeType: image/png
                - role: audio
                  url: https://cdn.example/tts.mp3
                  mimeType: audio/mpeg
                  label: 낭독
              meta:
                poemTitle: 벚꽃
      responses:
        "200":
          description: Stored
          content:
            application/json:
              schema:
                $ref: "#/components/schemas/SubmissionSuccess"
        "401":
          description: Invalid session
        "422":
          description: Validation failed
    get:
      tags: [Submissions]
      summary: List submissions for an activity (teacher)
      operationId: listActivitySubmissions
      parameters:
        - name: activityId
          in: path
          required: true
          schema:
            type: string
      responses:
        "200":
          description: List
          content:
            application/json:
              schema:
                type: object
                properties:
                  status:
                    const: success
                  data:
                    type: array
                    items:
                      $ref: "#/components/schemas/ActivitySubmissionRecord"
components:
  securitySchemes:
    EduSessionBearer:
      type: http
      scheme: bearer
    EduSessionHeader:
      type: apiKey
      in: header
      name: X-Edu-Session
  schemas:
    ActivitySubmissionEnvelope:
      type: object
      required: [title, primaryUrl, assets]
      properties:
        title:
          type: string
          maxLength: 200
        summary:
          type: string
          maxLength: 2000
        primaryUrl:
          type: string
          format: uri
        assets:
          type: array
          minItems: 1
          items:
            $ref: "#/components/schemas/SubmissionAsset"
        attachments:
          type: array
          items:
            $ref: "#/components/schemas/SubmissionAttachment"
        meta:
          type: object
          additionalProperties: true
    SubmissionAsset:
      type: object
      required: [role, url]
      properties:
        role:
          type: string
          enum: [cover, image, audio, video, page, file, other]
        url:
          type: string
          format: uri
        mimeType:
          type: string
        label:
          type: string
    SubmissionAttachment:
      type: object
      required: [url, filename]
      properties:
        url:
          type: string
          format: uri
        filename:
          type: string
        bytes:
          type: integer
        mimeType:
          type: string
    ActivitySubmissionRecord:
      allOf:
        - $ref: "#/components/schemas/ActivitySubmissionEnvelope"
        - type: object
          required: [id, studentId, activityId, classroomId, submittedAt]
          properties:
            id:
              type: string
            studentId:
              type: string
            activityId:
              type: string
            classroomId:
              type: string
            submittedAt:
              type: string
              format: date-time
            artifactId:
              type: string
    SubmissionSuccess:
      type: object
      required: [status, data]
      properties:
        status:
          const: success
        data:
          $ref: "#/components/schemas/ActivitySubmissionRecord"
        code:
          type: string
        message:
          type: string