openapi: 3.1.0
info:
  title: EDUT Member App Channel API
  version: 1.0.0
  description: |
    Deterministic member communication channel contract.
    App notifications are derived from wallet-authenticated membership and entitlement state.
servers:
  - url: https://api.edut.ai
security:
  - WalletSession: []
paths:
  /member/channel/device/register:
    post:
      summary: Register or refresh a member app device channel binding.
      operationId: registerMemberDevice
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DeviceRegisterRequest'
      responses:
        '200':
          description: Device channel binding active.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DeviceRegisterResponse'
        '403':
          description: Membership is not active for this wallet.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /member/channel/device/unregister:
    post:
      summary: Remove a device channel binding.
      operationId: unregisterMemberDevice
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DeviceUnregisterRequest'
      responses:
        '200':
          description: Device channel binding removed.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DeviceUnregisterResponse'
        '404':
          description: Device channel binding not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /member/channel/events:
    get:
      summary: Poll deterministic member channel events.
      operationId: listMemberChannelEvents
      parameters:
        - in: query
          name: wallet
          required: true
          schema:
            type: string
          description: Wallet address tied to session.
        - in: query
          name: device_id
          required: true
          schema:
            type: string
        - in: query
          name: cursor
          required: false
          schema:
            type: string
        - in: query
          name: limit
          required: false
          schema:
            type: integer
            minimum: 1
            maximum: 100
            default: 25
      responses:
        '200':
          description: Event page for in-app inbox rendering.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EventListResponse'
        '403':
          description: Membership inactive or suspended.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
  /member/channel/events/{event_id}/ack:
    post:
      summary: Acknowledge event delivery/read state.
      operationId: acknowledgeMemberChannelEvent
      parameters:
        - in: path
          name: event_id
          required: true
          schema:
            type: string
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/EventAckRequest'
      responses:
        '200':
          description: Event acknowledged.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/EventAckResponse'
        '404':
          description: Event not found.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
components:
  securitySchemes:
    WalletSession:
      type: http
      scheme: bearer
      bearerFormat: EDUT-WALLET-SESSION
  schemas:
    DeviceRegisterRequest:
      type: object
      required:
        - wallet
        - chain_id
        - device_id
        - platform
        - app_version
      properties:
        wallet:
          type: string
          description: Hex wallet address.
        chain_id:
          type: integer
          description: Active chain id in app session.
        device_id:
          type: string
          description: Stable app-install identifier.
        platform:
          type: string
          enum: [ios, android, desktop]
        app_version:
          type: string
        push_provider:
          type: string
          enum: [apns, fcm, webpush, none]
          default: none
        push_token:
          type: string
          description: Provider token if push is enabled.
    DeviceRegisterResponse:
      type: object
      required:
        - channel_binding_id
        - status
        - poll_interval_seconds
        - server_time
      properties:
        channel_binding_id:
          type: string
        status:
          type: string
          enum: [active]
        poll_interval_seconds:
          type: integer
          minimum: 10
        server_time:
          type: string
          format: date-time
    DeviceUnregisterRequest:
      type: object
      required:
        - wallet
        - device_id
      properties:
        wallet:
          type: string
        device_id:
          type: string
    DeviceUnregisterResponse:
      type: object
      required:
        - status
        - wallet
        - device_id
      properties:
        status:
          type: string
          enum: [removed]
        wallet:
          type: string
        device_id:
          type: string
    EventListResponse:
      type: object
      required:
        - wallet
        - device_id
        - events
        - next_cursor
        - server_time
      properties:
        wallet:
          type: string
        device_id:
          type: string
        events:
          type: array
          items:
            $ref: '#/components/schemas/MemberEvent'
        next_cursor:
          type: string
          nullable: true
        server_time:
          type: string
          format: date-time
    MemberEvent:
      type: object
      required:
        - event_id
        - class
        - created_at
        - title
        - body
        - dedupe_key
        - policy_hash
      properties:
        event_id:
          type: string
        class:
          type: string
          enum:
            - offer_available
            - entitlement_activated
            - platform_update
            - publisher_update
            - membership_policy
        created_at:
          type: string
          format: date-time
        title:
          type: string
        body:
          type: string
        dedupe_key:
          type: string
        requires_ack:
          type: boolean
          default: true
        policy_hash:
          type: string
        payload:
          type: object
          additionalProperties: true
    EventAckRequest:
      type: object
      required:
        - wallet
        - device_id
        - acknowledged_at
      properties:
        wallet:
          type: string
        device_id:
          type: string
        acknowledged_at:
          type: string
          format: date-time
    EventAckResponse:
      type: object
      required:
        - status
        - event_id
        - acknowledged_at
      properties:
        status:
          type: string
          enum: [acknowledged]
        event_id:
          type: string
        acknowledged_at:
          type: string
          format: date-time
    ErrorResponse:
      type: object
      required:
        - error
        - code
      properties:
        error:
          type: string
        code:
          type: string
        correlation_id:
          type: string