# 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:
  - $ref: ../edu.yaml
  - type: object
    properties:
      edu_type:
        type: string
        enum: ['m.receipt']
        description: The string `m.receipt`
        example: "m.receipt"
      content:
        type: object
        description: |-
          Receipts for a particular room. The string key is the room ID for
          which the receipts under it belong.
        patternProperties:
          "^!":
            x-pattern-format: mx-room-id
            type: object
            title: Room Receipts
            properties:
              # We strongly define the receipt type to help spec future ones later
              # on. At that point, m.read can become optional (maybe).
              "m.read":
                type: object
                description: |-
                  Read receipts for users in the room. The string key is the user
                  ID the receipt belongs to.
                patternProperties:
                  "^@":
                    x-pattern-format: mx-user-id
                    type: object
                    title: User Read Receipt
                    properties:
                      event_ids:
                        type: array
                        description: |-
                          The extremity event IDs that the user has read up to.
                        minItems: 1
                        maxItems: 1
                        items:
                          type: string
                        example: ['$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
                }
              }
            }
          }
        }
