# Copyright 2018 New Vector Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

type: object
title: m.receipt
description: |-
  An EDU representing receipt updates for users of the sending homeserver.
  When receiving receipts, the server should only update entries that are
  listed in the EDU. Receipts previously received that do not appear in the
  EDU should not be removed or otherwise manipulated.
allOf:
  - $ref: ../edu.yaml
  - type: object
    properties:
      edu_type:
        type: enum
        enum: ['m.receipt']
        description: The string `m.receipt`
        example: "m.receipt"
      content:
        type: object
        description: |-
          Receipts for a particular room. The string key is the room ID for
          which the receipts under it belong.
        additionalProperties:
          type: object
          title: Room Receipts
          properties:
            # We strongly define the receipt type to help spec future ones later
            # on. At that point, m.read can become optional (maybe).
            "m.read":
              type: object
              description: |-
                Read receipts for users in the room. The string key is the user
                ID the receipt belongs to.
              additionalProperties:
                type: object
                title: User Read Receipt
                properties:
                  event_ids:
                    type: array
                    description: |-
                      The extremity event IDs that the user has read up to.
                    minItems: 1
                    maxItems: 1
                    items:
                      type: string
                    example: ['$read_this_event:matrix.org']
                  data:
                    type: object
                    description: Metadata for the read receipt.
                    title: Read Receipt Metadata
                    properties:
                      ts:
                        type: integer
                        format: int64
                        description: |-
                          A POSIX timestamp in milliseconds for when the user read
                          the event specified in the read receipt.
                        example: 1533358089009
                      thread_id:
                          type: string
                          x-addedInMatrixVersion: "1.4"
                          description: |-
                              The root thread event's ID (or `main`) for which
                              thread this receipt is intended to be under. If
                              not specified, the read receipt is *unthreaded*
                              (default).
                          example: "$threadroot"
                    required: ['ts']
                required: ['event_ids', 'data']
          required: ['m.read']
        example: {
          "!some_room:example.org": {
            "m.read": {
              "@john:matrix.org": {
                "event_ids": ["$read_this_event:matrix.org"],
                "data": {
                  "ts": 1533358089009
                }
              }
            }
          }
        }