Add /sync from v1.1 to v1.5

src/Internal/Api/Sync/V1.elm

@@ -0,0 +1,809 @@
+module Internal.Api.Sync.V1 exposing (..)
+
+{-|
+
+
+# Sync response
+
+This API module represents the /sync endpoint on Matrix spec version v1.1.
+
+<https://spec.matrix.org/v1.1/client-server-api/#syncing>
+
+-}
+
+import FastDict exposing (Dict)
+import Internal.Tools.Json as Json
+import Internal.Tools.StrippedEvent as StrippedEvent exposing (StrippedEvent)
+import Internal.Tools.Timestamp as Timestamp exposing (Timestamp)
+
+
+type alias SyncResponse =
+    { accountData : Maybe AccountData
+    , deviceLists : Maybe DeviceLists
+    , deviceOneTimeKeysCount : Maybe (Dict String Int)
+    , nextBatch : String
+    , presence : Maybe Presence
+    , rooms : Maybe Rooms
+    , toDevice : Maybe ToDevice
+    }
+
+
+type alias AccountData =
+    { events : Maybe (List Event) }
+
+
+type alias Event =
+    { content : Json.Value
+    , eventType : String
+    }
+
+
+type alias Presence =
+    { events : Maybe (List Event) }
+
+
+type alias Rooms =
+    { invite : Maybe (Dict String InvitedRoom)
+    , join : Maybe (Dict String JoinedRoom)
+    , knock : Maybe (Dict String KnockedRoom)
+    , leave : Maybe (Dict String LeftRoom)
+    }
+
+
+type alias InvitedRoom =
+    { inviteState : Maybe InviteState }
+
+
+type alias InviteState =
+    { events : Maybe (List StrippedState) }
+
+
+type alias StrippedState =
+    { content : Json.Value
+    , sender : String
+    , stateKey : String
+    , eventType : String
+    }
+
+
+type alias JoinedRoom =
+    { accountData : Maybe AccountData
+    , ephemeral : Maybe Ephemeral
+    , state : Maybe State
+    , summary : Maybe RoomSummary
+    , timeline : Maybe Timeline
+    , unreadNotifications : Maybe UnreadNotificationCounts
+    }
+
+
+type alias Ephemeral =
+    { events : Maybe (List Event) }
+
+
+type alias State =
+    { events : Maybe (List SyncStateEvent) }
+
+
+type alias SyncStateEvent =
+    { content : Json.Value
+    , eventId : String
+    , originServerTs : Timestamp
+    , prevContent : Maybe Json.Value
+    , sender : String
+    , stateKey : String
+    , eventType : String
+    , unsigned : Maybe UnsignedData
+    }
+
+
+type alias UnsignedData =
+    { age : Maybe Int
+    , redactedBecause : Maybe Event
+    , transactionId : Maybe String
+    }
+
+
+type alias RoomSummary =
+    { mHeroes : Maybe (List String)
+    , mInvitedMemberCount : Maybe Int
+    , mJoinedMemberCount : Maybe Int
+    }
+
+
+type alias Timeline =
+    { events : Maybe (List SyncRoomEvent)
+    , limited : Maybe Bool
+    , prevBatch : Maybe String
+    }
+
+
+type alias SyncRoomEvent =
+    { content : Json.Value
+    , eventId : String
+    , originServerTs : Timestamp
+    , sender : String
+    , eventType : String
+    , unsigned : Maybe UnsignedData
+    }
+
+
+type alias UnreadNotificationCounts =
+    { highlightCount : Maybe Int
+    , notificationCount : Maybe Int
+    }
+
+
+type alias KnockedRoom =
+    { knockState : Maybe KnockState }
+
+
+type alias KnockState =
+    { events : Maybe (List StrippedState) }
+
+
+type alias LeftRoom =
+    { accountData : Maybe AccountData
+    , state : Maybe State
+    , timeline : Maybe Timeline
+    }
+
+
+type alias DeviceLists =
+    { changed : Maybe (List String)
+    , left : Maybe (List String)
+    }
+
+
+type alias ToDevice =
+    { events : Maybe (List ToDeviceEvent) }
+
+
+type alias ToDeviceEvent =
+    { content : Maybe Json.Value
+    , sender : Maybe String
+    , eventType : Maybe String
+    }
+
+
+coderSyncResponse : Json.Coder SyncResponse
+coderSyncResponse =
+    Json.object7
+        { name = "SyncResponse"
+        , description = [ "The event that is returned on a 200 response." ]
+        , init = SyncResponse
+        }
+        (Json.field.optional.value
+            { fieldName = "account_data"
+            , toField = .accountData
+            , description = [ "The global private data created by this user." ]
+            , coder = coderAccountData
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "device_lists"
+            , toField = .deviceLists
+            , description = [ "Information on end-to-end device updates, as specified in End-to-end encryption." ]
+            , coder = coderDeviceLists
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "device_one_time_keys_count"
+            , toField = .deviceOneTimeKeysCount
+            , description = [ "Information on end-to-end encryption keys, as specified in End-to-end encryption." ]
+            , coder = Json.fastDict Json.int
+            }
+        )
+        (Json.field.required
+            { fieldName = "next_batch"
+            , toField = .nextBatch
+            , description = [ "Required: The batch token to supply in the since param of the next /sync request." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "presence"
+            , toField = .presence
+            , description = [ "The updates to the presence status of other users." ]
+            , coder = coderPresence
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "rooms"
+            , toField = .rooms
+            , description = [ "Updates to rooms." ]
+            , coder = coderRooms
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "to_device"
+            , toField = .toDevice
+            , description = [ "Information on the send-to-device messages for the client device, as defined in Send-to-Device messaging." ]
+            , coder = coderToDevice
+            }
+        )
+
+
+coderAccountData : Json.Coder AccountData
+coderAccountData =
+    Json.object1
+        { name = "AccountData"
+        , description = [ "The global private data created by this user." ]
+        , init = AccountData
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "List of events." ]
+            , coder = Json.list coderEvent
+            }
+        )
+
+
+coderEvent : Json.Coder Event
+coderEvent =
+    StrippedEvent.coder
+
+
+coderPresence : Json.Coder Presence
+coderPresence =
+    Json.object1
+        { name = "Presence"
+        , description = [ "The updates to the presence status of other users." ]
+        , init = Presence
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "List of events." ]
+            , coder = Json.list coderEvent
+            }
+        )
+
+
+coderRooms : Json.Coder Rooms
+coderRooms =
+    Json.object4
+        { name = "Rooms"
+        , description = [ "Updates to rooms." ]
+        , init = Rooms
+        }
+        (Json.field.optional.value
+            { fieldName = "invite"
+            , toField = .invite
+            , description = [ "The rooms that the user has been invited to, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderInvitedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "join"
+            , toField = .join
+            , description = [ "The rooms that the user has joined, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderJoinedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "knock"
+            , toField = .knock
+            , description = [ "The rooms that the user has knocked upon, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderKnockedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "leave"
+            , toField = .leave
+            , description = [ "The rooms that the user has left or been banned from, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderLeftRoom
+            }
+        )
+
+
+coderInvitedRoom : Json.Coder InvitedRoom
+coderInvitedRoom =
+    Json.object1
+        { name = "InvitedRoom"
+        , description = [ "The rooms that the user has been invited to, mapped as room ID to room information." ]
+        , init = InvitedRoom
+        }
+        (Json.field.optional.value
+            { fieldName = "invite_state"
+            , toField = .inviteState
+            , description = [ "The state of a room that the user has been invited to.", "These state events may only have the sender, type, state_key and content keys present.", "These events do not replace any state that the client already has for the room, for example if the client has archived the room.", "Instead the client should keep two separate copies of the state: the one from the invite_state and one from the archived state.", "If the client joins the room then the current state will be given as a delta against the archived state not the invite_state." ]
+            , coder = coderInviteState
+            }
+        )
+
+
+coderInviteState : Json.Coder InviteState
+coderInviteState =
+    Json.object1
+        { name = "InviteState"
+        , description = [ "The state of a room that the user has been invited to." ]
+        , init = InviteState
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "The StrippedState events that form the invite state." ]
+            , coder = Json.list coderStrippedState
+            }
+        )
+
+
+coderStrippedState : Json.Coder StrippedState
+coderStrippedState =
+    Json.object4
+        { name = "StrippedState"
+        , description = [ "The StrippedState events that form the invite state." ]
+        , init = StrippedState
+        }
+        (Json.field.required
+            { fieldName = "content"
+            , toField = .content
+            , description = [ "The content for the event." ]
+            , coder = Json.value
+            }
+        )
+        (Json.field.required
+            { fieldName = "sender"
+            , toField = .sender
+            , description = [ "The sender for the event." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "state_key"
+            , toField = .stateKey
+            , description = [ "The state_key for the event." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "type"
+            , toField = .eventType
+            , description = [ "The type for the event." ]
+            , coder = Json.string
+            }
+        )
+
+
+coderJoinedRoom : Json.Coder JoinedRoom
+coderJoinedRoom =
+    Json.object6
+        { name = "JoinedRoom"
+        , description = [ "The rooms that the user has joined, mapped as room ID to room information." ]
+        , init = JoinedRoom
+        }
+        (Json.field.optional.value
+            { fieldName = "account_data"
+            , toField = .accountData
+            , description = [ "The private data that this user has attached to this room." ]
+            , coder = coderAccountData
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "ephemeral"
+            , toField = .ephemeral
+            , description = [ "The ephemeral events in the room that aren’t recorded in the timeline or state of the room. e.g. typing." ]
+            , coder = coderEphemeral
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "state"
+            , toField = .state
+            , description = [ "Updates to the state, between the time indicated by the since parameter, and the start of the timeline (or all state up to the start of the timeline, if since is not given, or full_state is true).", "N.B. state updates for m.room.member events will be incomplete if lazy_load_members is enabled in the /sync filter, and only return the member events required to display the senders of the timeline events in this response." ]
+            , coder = coderState
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "summary"
+            , toField = .summary
+            , description = [ "Information about the room which clients may need to correctly render it to users." ]
+            , coder = coderRoomSummary
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "timeline"
+            , toField = .timeline
+            , description = [ "The timeline of messages and state changes in the room." ]
+            , coder = coderTimeline
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "unread_notifications"
+            , toField = .unreadNotifications
+            , description = [ "Counts of unread notifications for this room. See the Receiving notifications section for more information on how these are calculated." ]
+            , coder = coderUnreadNotificationCounts
+            }
+        )
+
+
+coderEphemeral : Json.Coder Ephemeral
+coderEphemeral =
+    Json.object1
+        { name = "Ephemeral"
+        , description = [ "The ephemeral events in the room that aren’t recorded in the timeline or state of the room. e.g. typing." ]
+        , init = Ephemeral
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "List of events." ]
+            , coder = Json.list coderEvent
+            }
+        )
+
+
+coderState : Json.Coder State
+coderState =
+    Json.object1
+        { name = "State"
+        , description = [ "Updates to the state, between the time indicated by the since parameter, and the start of the timeline (or all state up to the start of the timeline, if since is not given, or full_state is true)." ]
+        , init = State
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "List of events." ]
+            , coder = Json.list coderSyncStateEvent
+            }
+        )
+
+
+coderSyncStateEvent : Json.Coder SyncStateEvent
+coderSyncStateEvent =
+    Json.object8
+        { name = "SyncStateEvent"
+        , description = [ "Represents a state event within a sync response." ]
+        , init = SyncStateEvent
+        }
+        (Json.field.required
+            { fieldName = "content"
+            , toField = .content
+            , description = [ "The fields in this object will vary depending on the type of event. When interacting with the REST API, this is the HTTP body." ]
+            , coder = Json.value
+            }
+        )
+        (Json.field.required
+            { fieldName = "event_id"
+            , toField = .eventId
+            , description = [ "The globally unique event identifier." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "origin_server_ts"
+            , toField = .originServerTs
+            , description = [ "Timestamp in milliseconds on originating homeserver when this event was sent." ]
+            , coder = Timestamp.coder
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "prev_content"
+            , toField = .prevContent
+            , description = [ "Optional. The previous content for this event. If there is no previous content, this key will be missing." ]
+            , coder = Json.value
+            }
+        )
+        (Json.field.required
+            { fieldName = "sender"
+            , toField = .sender
+            , description = [ "Contains the fully-qualified ID of the user who sent this event." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "state_key"
+            , toField = .stateKey
+            , description = [ "A unique key which defines the overwriting semantics for this piece of room state.", "This value is often a zero-length string. The presence of this key makes this event a State Event.", "State keys starting with an @ are reserved for referencing user IDs, such as room members.", "With the exception of a few events, state events set with a given user’s ID as the state key MUST only be set by that user." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "type"
+            , toField = .eventType
+            , description = [ "The type of event. This SHOULD be namespaced similar to Java package naming conventions e.g. ‘com.example.subdomain.event.type’" ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "unsigned"
+            , toField = .unsigned
+            , description = [ "Contains optional extra information about the event." ]
+            , coder = coderUnsignedData
+            }
+        )
+
+
+coderUnsignedData : Json.Coder UnsignedData
+coderUnsignedData =
+    Json.object3
+        { name = "UnsignedData"
+        , description = [ "Contains optional extra information about the event." ]
+        , init = UnsignedData
+        }
+        (Json.field.optional.value
+            { fieldName = "age"
+            , toField = .age
+            , description = [ "The time in milliseconds that has elapsed since the event was sent.", "This field is generated by the local homeserver, and may be incorrect if the local time on at least one of the two servers is out of sync, which can cause the age to either be negative or greater than it actually is." ]
+            , coder = Json.int
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "redacted_because"
+            , toField = .redactedBecause
+            , description = [ "The event that redacted this event, if any." ]
+            , coder = coderEvent
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "transaction_id"
+            , toField = .transactionId
+            , description = [ "The client-supplied transaction ID, for example, provided via PUT /_matrix/client/r0/rooms/{roomId}/send/{eventType}/{txnId}, if the client being given the event is the same one which sent it." ]
+            , coder = Json.string
+            }
+        )
+
+
+coderRoomSummary : Json.Coder RoomSummary
+coderRoomSummary =
+    Json.object3
+        { name = "RoomSummary"
+        , description = [ "Information about the room which clients may need to correctly render it to users." ]
+        , init = RoomSummary
+        }
+        (Json.field.optional.value
+            { fieldName = "m.heroes"
+            , toField = .mHeroes
+            , description = [ "The users which can be used to generate a room name if the room does not have one. Required if the room’s m.room.name or m.room.canonical_alias state events are unset or empty.", "This should be the first 5 members of the room, ordered by stream ordering, which are joined or invited.", "The list must never include the client’s own user ID.", "When no joined or invited members are available, this should consist of the banned and left users.", "More than 5 members may be provided, however less than 5 should only be provided when there are less than 5 members to represent.", "When lazy-loading room members is enabled, the membership events for the heroes MUST be included in the state, unless they are redundant.", "When the list of users changes, the server notifies the client by sending a fresh list of heroes.", "If there are no changes since the last sync, this field may be omitted." ]
+            , coder = Json.list Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "m.invited_member_count"
+            , toField = .mInvitedMemberCount
+            , description = [ "The number of users with membership of invite.", "If this field has not changed since the last sync, it may be omitted. Required otherwise." ]
+            , coder = Json.int
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "m.joined_member_count"
+            , toField = .mJoinedMemberCount
+            , description = [ "The number of users with membership of join, including the client’s own user ID.", "If this field has not changed since the last sync, it may be omitted. Required otherwise." ]
+            , coder = Json.int
+            }
+        )
+
+
+coderTimeline : Json.Coder Timeline
+coderTimeline =
+    Json.object3
+        { name = "Timeline"
+        , description = [ "The timeline of messages and state changes in the room." ]
+        , init = Timeline
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "List of events." ]
+            , coder = Json.list coderSyncRoomEvent
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "limited"
+            , toField = .limited
+            , description = [ "True if the number of events returned was limited by the limit on the filter." ]
+            , coder = Json.bool
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "prev_batch"
+            , toField = .prevBatch
+            , description = [ "A token that can be supplied to the from parameter of the /rooms/<room_id>/messages endpoint in order to retrieve earlier events.", "If no earlier events are available, this property may be omitted from the response." ]
+            , coder = Json.string
+            }
+        )
+
+
+coderSyncRoomEvent : Json.Coder SyncRoomEvent
+coderSyncRoomEvent =
+    Json.object6
+        { name = "SyncRoomEvent"
+        , description = [ "Represents a room event within a sync response." ]
+        , init = SyncRoomEvent
+        }
+        (Json.field.required
+            { fieldName = "content"
+            , toField = .content
+            , description = [ "The fields in this object will vary depending on the type of event. When interacting with the REST API, this is the HTTP body." ]
+            , coder = Json.value
+            }
+        )
+        (Json.field.required
+            { fieldName = "event_id"
+            , toField = .eventId
+            , description = [ "The globally unique event identifier." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "origin_server_ts"
+            , toField = .originServerTs
+            , description = [ "Timestamp in milliseconds on originating homeserver when this event was sent." ]
+            , coder = Timestamp.coder
+            }
+        )
+        (Json.field.required
+            { fieldName = "sender"
+            , toField = .sender
+            , description = [ "Contains the fully-qualified ID of the user who sent this event." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "type"
+            , toField = .eventType
+            , description = [ "The type of event. This SHOULD be namespaced similar to Java package naming conventions e.g. ‘com.example.subdomain.event.type’" ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "unsigned"
+            , toField = .unsigned
+            , description = [ "Contains optional extra information about the event." ]
+            , coder = coderUnsignedData
+            }
+        )
+
+
+coderUnreadNotificationCounts : Json.Coder UnreadNotificationCounts
+coderUnreadNotificationCounts =
+    Json.object2
+        { name = "UnreadNotificationCounts"
+        , description = [ "Counts of unread notifications for this room." ]
+        , init = UnreadNotificationCounts
+        }
+        (Json.field.optional.value
+            { fieldName = "highlight_count"
+            , toField = .highlightCount
+            , description = [ "The number of unread notifications for this room with the highlight flag set." ]
+            , coder = Json.int
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "notification_count"
+            , toField = .notificationCount
+            , description = [ "The total number of unread notifications for this room." ]
+            , coder = Json.int
+            }
+        )
+
+
+coderKnockedRoom : Json.Coder KnockedRoom
+coderKnockedRoom =
+    Json.object1
+        { name = "KnockedRoom"
+        , description = [ "The rooms that the user has knocked upon, mapped as room ID to room information." ]
+        , init = KnockedRoom
+        }
+        (Json.field.optional.value
+            { fieldName = "knock_state"
+            , toField = .knockState
+            , description = [ "The state of a room that the user has knocked upon.", "The state events contained here have the same restrictions as InviteState above." ]
+            , coder = coderKnockState
+            }
+        )
+
+
+coderKnockState : Json.Coder KnockState
+coderKnockState =
+    Json.object1
+        { name = "KnockState"
+        , description = [ "The state of a room that the user has knocked upon." ]
+        , init = KnockState
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "The StrippedState events that form the knock state." ]
+            , coder = Json.list coderStrippedState
+            }
+        )
+
+
+coderLeftRoom : Json.Coder LeftRoom
+coderLeftRoom =
+    Json.object3
+        { name = "LeftRoom"
+        , description = [ "The rooms that the user has left or been banned from, mapped as room ID to room information." ]
+        , init = LeftRoom
+        }
+        (Json.field.optional.value
+            { fieldName = "account_data"
+            , toField = .accountData
+            , description = [ "The private data that this user has attached to this room." ]
+            , coder = coderAccountData
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "state"
+            , toField = .state
+            , description = [ "The state updates for the room up to the start of the timeline." ]
+            , coder = coderState
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "timeline"
+            , toField = .timeline
+            , description = [ "The timeline of messages and state changes in the room up to the point when the user left." ]
+            , coder = coderTimeline
+            }
+        )
+
+
+coderDeviceLists : Json.Coder DeviceLists
+coderDeviceLists =
+    Json.object2
+        { name = "DeviceLists"
+        , description = [ "Information on end-to-end device updates, as specified in End-to-end encryption." ]
+        , init = DeviceLists
+        }
+        (Json.field.optional.value
+            { fieldName = "changed"
+            , toField = .changed
+            , description = [ "List of users who have updated their device identity or cross-signing keys, or who now share an encrypted room with the client since the previous sync response." ]
+            , coder = Json.list Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "left"
+            , toField = .left
+            , description = [ "List of users with whom we do not share any encrypted rooms anymore since the previous sync response." ]
+            , coder = Json.list Json.string
+            }
+        )
+
+
+coderToDevice : Json.Coder ToDevice
+coderToDevice =
+    Json.object1
+        { name = "ToDevice"
+        , description = [ "Information on the send-to-device messages for the client device, as defined in Send-to-Device messaging." ]
+        , init = ToDevice
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "List of send-to-device messages." ]
+            , coder = Json.list coderToDeviceEvent
+            }
+        )
+
+
+coderToDeviceEvent : Json.Coder ToDeviceEvent
+coderToDeviceEvent =
+    Json.object3
+        { name = "ToDeviceEvent"
+        , description = [ "An event." ]
+        , init = ToDeviceEvent
+        }
+        (Json.field.optional.value
+            { fieldName = "content"
+            , toField = .content
+            , description = [ "The content of this event. The fields in this object will vary depending on the type of event." ]
+            , coder = Json.value
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "sender"
+            , toField = .sender
+            , description = [ "The Matrix user ID of the user who sent this event." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "type"
+            , toField = .eventType
+            , description = [ "The type of event." ]
+            , coder = Json.string
+            }
+        )

src/Internal/Api/Sync/V2.elm

@@ -0,0 +1,557 @@
+module Internal.Api.Sync.V2 exposing (..)
+
+{-|
+
+
+# Sync response
+
+This API module represents the /sync endpoint on Matrix spec version v1.1.
+
+<https://spec.matrix.org/v1.2/client-server-api/#syncing>
+
+-}
+
+import FastDict exposing (Dict)
+import Internal.Api.Sync.V1 as PV
+import Internal.Tools.Json as Json
+
+
+type alias SyncResponse =
+    { accountData : Maybe AccountData
+    , deviceLists : Maybe DeviceLists
+    , deviceOneTimeKeysCount : Maybe (Dict String Int)
+    , deviceUnusedFallbackKeyTypes : List String
+    , nextBatch : String
+    , presence : Maybe Presence
+    , rooms : Maybe Rooms
+    , toDevice : Maybe ToDevice
+    }
+
+
+type alias AccountData =
+    { events : Maybe (List Event) }
+
+
+type alias Event =
+    { content : Json.Value
+    , eventType : String
+    }
+
+
+type alias Presence =
+    { events : Maybe (List Event) }
+
+
+type alias Rooms =
+    { invite : Maybe (Dict String InvitedRoom)
+    , join : Maybe (Dict String JoinedRoom)
+    , knock : Maybe (Dict String KnockedRoom)
+    , leave : Maybe (Dict String LeftRoom)
+    }
+
+
+type alias InvitedRoom =
+    { inviteState : Maybe InviteState }
+
+
+type alias InviteState =
+    { events : Maybe (List StrippedStateEvent) }
+
+
+type alias StrippedStateEvent =
+    { content : Json.Value
+    , sender : String
+    , stateKey : String
+    , eventType : String
+    }
+
+
+type alias JoinedRoom =
+    { accountData : Maybe AccountData
+    , ephemeral : Maybe Ephemeral
+    , state : Maybe State
+    , summary : Maybe RoomSummary
+    , timeline : Maybe Timeline
+    , unreadNotifications : Maybe UnreadNotificationCounts
+    }
+
+
+type alias Ephemeral =
+    { events : Maybe (List Event) }
+
+
+type alias State =
+    { events : Maybe (List ClientEventWithoutRoomID) }
+
+
+type alias ClientEventWithoutRoomID =
+    { content : Json.Value
+    , eventId : String
+    , originServerTs : Int
+    , sender : String
+    , stateKey : Maybe String
+    , eventType : String
+    , unsigned : Maybe UnsignedData
+    }
+
+
+type UnsignedData
+    = UnsignedData
+        { age : Maybe Int
+        , prevContent : Maybe Json.Value
+        , redactedBecause : Maybe ClientEventWithoutRoomID
+        , transactionId : Maybe String
+        }
+
+
+type alias RoomSummary =
+    { mHeroes : Maybe (List String)
+    , mInvitedMemberCount : Maybe Int
+    , mJoinedMemberCount : Maybe Int
+    }
+
+
+type alias Timeline =
+    { events : List ClientEventWithoutRoomID
+    , limited : Maybe Bool
+    , prevBatch : Maybe String
+    }
+
+
+type alias UnreadNotificationCounts =
+    { highlightCount : Maybe Int
+    , notificationCount : Maybe Int
+    }
+
+
+type alias KnockedRoom =
+    { knockState : Maybe KnockState }
+
+
+type alias KnockState =
+    { events : Maybe (List StrippedStateEvent) }
+
+
+type alias LeftRoom =
+    { accountData : Maybe AccountData
+    , state : Maybe State
+    , timeline : Maybe Timeline
+    }
+
+
+type alias DeviceLists =
+    { changed : Maybe (List String)
+    , left : Maybe (List String)
+    }
+
+
+type alias ToDevice =
+    { events : Maybe (List ToDeviceEvent) }
+
+
+type alias ToDeviceEvent =
+    { content : Maybe Json.Value
+    , sender : Maybe String
+    , eventType : Maybe String
+    }
+
+
+coderSyncResponse : Json.Coder SyncResponse
+coderSyncResponse =
+    Json.object8
+        { name = "SyncResponse"
+        , description = [ "An event that is part of a response." ]
+        , init = SyncResponse
+        }
+        (Json.field.optional.value
+            { fieldName = "account_data"
+            , toField = .accountData
+            , description = [ "The global private data created by this user." ]
+            , coder = coderAccountData
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "device_lists"
+            , toField = .deviceLists
+            , description = [ "Information on end-to-end device updates, as specified in End-to-end encryption." ]
+            , coder = coderDeviceLists
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "device_one_time_keys_count"
+            , toField = .deviceOneTimeKeysCount
+            , description = [ "Information on end-to-end encryption keys, as specified in End-to-end encryption." ]
+            , coder = Json.fastDict Json.int
+            }
+        )
+        (Json.field.required
+            { fieldName = "device_unused_fallback_key_types"
+            , toField = .deviceUnusedFallbackKeyTypes
+            , description = [ "The unused fallback key algorithms." ]
+            , coder = Json.list Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "next_batch"
+            , toField = .nextBatch
+            , description = [ "Required: The batch token to supply in the since param of the next /sync request." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "presence"
+            , toField = .presence
+            , description = [ "The updates to the presence status of other users." ]
+            , coder = coderPresence
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "rooms"
+            , toField = .rooms
+            , description = [ "Updates to rooms." ]
+            , coder = coderRooms
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "to_device"
+            , toField = .toDevice
+            , description = [ "Information on the send-to-device messages for the client device, as defined in Send-to-Device messaging." ]
+            , coder = coderToDevice
+            }
+        )
+
+
+coderAccountData : Json.Coder AccountData
+coderAccountData =
+    PV.coderAccountData
+
+
+coderEvent : Json.Coder Event
+coderEvent =
+    PV.coderEvent
+
+
+coderPresence : Json.Coder Presence
+coderPresence =
+    PV.coderPresence
+
+
+coderRooms : Json.Coder Rooms
+coderRooms =
+    Json.object4
+        { name = "Rooms"
+        , description = [ "Updates to rooms." ]
+        , init = Rooms
+        }
+        (Json.field.optional.value
+            { fieldName = "invite"
+            , toField = .invite
+            , description = [ "The rooms that the user has been invited to, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderInvitedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "join"
+            , toField = .join
+            , description = [ "The rooms that the user has joined, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderJoinedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "knock"
+            , toField = .knock
+            , description = [ "The rooms that the user has knocked upon, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderKnockedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "leave"
+            , toField = .leave
+            , description = [ "The rooms that the user has left or been banned from, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderLeftRoom
+            }
+        )
+
+
+coderInvitedRoom : Json.Coder InvitedRoom
+coderInvitedRoom =
+    PV.coderInvitedRoom
+
+
+coderInviteState : Json.Coder InviteState
+coderInviteState =
+    PV.coderInviteState
+
+
+coderStrippedStateEvent : Json.Coder StrippedStateEvent
+coderStrippedStateEvent =
+    PV.coderStrippedState
+
+
+coderJoinedRoom : Json.Coder JoinedRoom
+coderJoinedRoom =
+    Json.object6
+        { name = "JoinedRoom"
+        , description = [ "The rooms that the user has joined." ]
+        , init = JoinedRoom
+        }
+        (Json.field.optional.value
+            { fieldName = "account_data"
+            , toField = .accountData
+            , description = [ "The private data that this user has attached to this room." ]
+            , coder = coderAccountData
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "ephemeral"
+            , toField = .ephemeral
+            , description = [ "The ephemeral events in the room that aren’t recorded in the timeline or state of the room. e.g. typing." ]
+            , coder = coderEphemeral
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "state"
+            , toField = .state
+            , description = [ "Updates to the state, between the time indicated by the since parameter, and the start of the timeline (or all state up to the start of the timeline, if since is not given, or full_state is true).", "N.B. state updates for m.room.member events will be incomplete if lazy_load_members is enabled in the /sync filter, and only return the member events required to display the senders of the timeline events in this response." ]
+            , coder = coderState
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "summary"
+            , toField = .summary
+            , description = [ "Information about the room which clients may need to correctly render it to users." ]
+            , coder = coderRoomSummary
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "timeline"
+            , toField = .timeline
+            , description = [ "The timeline of messages and state changes in the room." ]
+            , coder = coderTimeline
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "unread_notifications"
+            , toField = .unreadNotifications
+            , description = [ "Counts of unread notifications for this room. See the Receiving notifications section for more information on how these are calculated." ]
+            , coder = coderUnreadNotificationCounts
+            }
+        )
+
+
+coderEphemeral : Json.Coder Ephemeral
+coderEphemeral =
+    PV.coderEphemeral
+
+
+coderState : Json.Coder State
+coderState =
+    Json.object1
+        { name = "State"
+        , description = [ "Updates to the state." ]
+        , init = State
+        }
+        (Json.field.optional.value
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "List of events." ]
+            , coder = Json.list coderClientEventWithoutRoomID
+            }
+        )
+
+
+coderClientEventWithoutRoomID : Json.Coder ClientEventWithoutRoomID
+coderClientEventWithoutRoomID =
+    Json.object7
+        { name = "ClientEventWithoutRoomID"
+        , description = [ "An event without a room ID." ]
+        , init = ClientEventWithoutRoomID
+        }
+        (Json.field.required
+            { fieldName = "content"
+            , toField = .content
+            , description = [ "Required: The body of this event, as created by the client which sent it." ]
+            , coder = Json.value
+            }
+        )
+        (Json.field.required
+            { fieldName = "event_id"
+            , toField = .eventId
+            , description = [ "Required: The globally unique identifier for this event." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "origin_server_ts"
+            , toField = .originServerTs
+            , description = [ "Required: Timestamp (in milliseconds since the unix epoch) on originating homeserver when this event was sent." ]
+            , coder = Json.int
+            }
+        )
+        (Json.field.required
+            { fieldName = "sender"
+            , toField = .sender
+            , description = [ "Required: Contains the fully-qualified ID of the user who sent this event." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "state_key"
+            , toField = .stateKey
+            , description = [ "Present if, and only if, this event is a state event. The key making this piece of state unique in the room. Note that it is often an empty string." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "type"
+            , toField = .eventType
+            , description = [ "Required: The type of the event." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "unsigned"
+            , toField = .unsigned
+            , description = [ "Contains optional extra information about the event." ]
+            , coder = coderUnsignedData
+            }
+        )
+
+
+coderUnsignedData : Json.Coder UnsignedData
+coderUnsignedData =
+    Json.object4
+        { name = "UnsignedData"
+        , description = [ "Contains optional extra information about the event." ]
+        , init =
+            \a b c d ->
+                UnsignedData
+                    { age = a
+                    , prevContent = b
+                    , redactedBecause = c
+                    , transactionId = d
+                    }
+        }
+        (Json.field.optional.value
+            { fieldName = "age"
+            , toField = \(UnsignedData u) -> u.age
+            , description = [ "The time in milliseconds that has elapsed since the event was sent. This field is generated by the local homeserver, and may be incorrect if the local time on at least one of the two servers is out of sync, which can cause the age to either be negative or greater than it actually is." ]
+            , coder = Json.int
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "prev_content"
+            , toField = \(UnsignedData u) -> u.prevContent
+            , description = [ "The previous content for this event. This field is generated by the local homeserver, and is only returned if the event is a state event, and the client has permission to see the previous content.", "Changed in v1.2: Previously, this field was specified at the top level of returned events rather than in unsigned (with the exception of the GET .../notifications endpoint), though in practice no known server implementations honoured this." ]
+            , coder = Json.value
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "redacted_because"
+            , toField = \(UnsignedData u) -> u.redactedBecause
+            , description = [ "The event that redacted this event, if any." ]
+            , coder = Json.lazy (\_ -> coderClientEventWithoutRoomID)
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "transaction_id"
+            , toField = \(UnsignedData u) -> u.transactionId
+            , description = [ "The client-supplied transaction ID, for example, provided via PUT /_matrix/client/v3/rooms/{roomId}/send/{eventType}/{txnId}, if the client being given the event is the same one which sent it." ]
+            , coder = Json.string
+            }
+        )
+
+
+coderRoomSummary : Json.Coder RoomSummary
+coderRoomSummary =
+    PV.coderRoomSummary
+
+
+coderTimeline : Json.Coder Timeline
+coderTimeline =
+    Json.object3
+        { name = "Timeline"
+        , description = [ "The timeline of messages and state changes in the room." ]
+        , init = Timeline
+        }
+        (Json.field.required
+            { fieldName = "events"
+            , toField = .events
+            , description = [ "Required: List of events." ]
+            , coder = Json.list coderClientEventWithoutRoomID
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "limited"
+            , toField = .limited
+            , description = [ "True if the number of events returned was limited by the limit on the filter." ]
+            , coder = Json.bool
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "prev_batch"
+            , toField = .prevBatch
+            , description = [ "A token that can be supplied to the from parameter of the /rooms/<room_id>/messages endpoint in order to retrieve earlier events. If no earlier events are available, this property may be omitted from the response." ]
+            , coder = Json.string
+            }
+        )
+
+
+coderUnreadNotificationCounts : Json.Coder UnreadNotificationCounts
+coderUnreadNotificationCounts =
+    PV.coderUnreadNotificationCounts
+
+
+coderKnockedRoom : Json.Coder KnockedRoom
+coderKnockedRoom =
+    PV.coderKnockedRoom
+
+
+coderKnockState : Json.Coder KnockState
+coderKnockState =
+    PV.coderKnockState
+
+
+coderLeftRoom : Json.Coder LeftRoom
+coderLeftRoom =
+    Json.object3
+        { name = "LeftRoom"
+        , description = [ "The rooms that the user has left or been banned from." ]
+        , init = LeftRoom
+        }
+        (Json.field.optional.value
+            { fieldName = "account_data"
+            , toField = .accountData
+            , description = [ "The private data that this user has attached to this room." ]
+            , coder = coderAccountData
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "state"
+            , toField = .state
+            , description = [ "The state updates for the room up to the start of the timeline." ]
+            , coder = coderState
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "timeline"
+            , toField = .timeline
+            , description = [ "The timeline of messages and state changes in the room up to the point when the user left." ]
+            , coder = coderTimeline
+            }
+        )
+
+
+coderDeviceLists : Json.Coder DeviceLists
+coderDeviceLists =
+    PV.coderDeviceLists
+
+
+coderToDevice : Json.Coder ToDevice
+coderToDevice =
+    PV.coderToDevice
+
+
+coderToDeviceEvent : Json.Coder ToDeviceEvent
+coderToDeviceEvent =
+    PV.coderToDeviceEvent

src/Internal/Api/Sync/V3.elm

@@ -0,0 +1,261 @@
+module Internal.Api.Sync.V3 exposing (..)
+
+{-|
+
+
+# Sync response
+
+This API module represents the /sync endpoint on Matrix spec version v1.1.
+
+<https://spec.matrix.org/v1.3/client-server-api/#syncing>
+
+-}
+
+import FastDict exposing (Dict)
+import Internal.Api.Sync.V2 as PV
+import Internal.Tools.Json as Json
+
+
+type alias SyncResponse =
+    { accountData : Maybe AccountData
+    , deviceLists : Maybe DeviceLists
+    , deviceOneTimeKeysCount : Maybe (Dict String Int)
+    , deviceUnusedFallbackKeyTypes : List String
+    , nextBatch : String
+    , presence : Maybe Presence
+    , rooms : Maybe Rooms
+    , toDevice : Maybe ToDevice
+    }
+
+
+type alias AccountData =
+    { events : Maybe (List Event) }
+
+
+type alias Event =
+    { content : Json.Value
+    , eventType : String
+    }
+
+
+type alias Presence =
+    { events : Maybe (List Event) }
+
+
+type alias Rooms =
+    { invite : Maybe (Dict String InvitedRoom)
+    , join : Maybe (Dict String JoinedRoom)
+    , knock : Maybe (Dict String KnockedRoom)
+    , leave : Maybe (Dict String LeftRoom)
+    }
+
+
+type alias InvitedRoom =
+    { inviteState : Maybe InviteState }
+
+
+type alias InviteState =
+    { events : Maybe (List StrippedStateEvent) }
+
+
+type alias StrippedStateEvent =
+    { content : Json.Value
+    , sender : String
+    , stateKey : String
+    , eventType : String
+    }
+
+
+type alias JoinedRoom =
+    { accountData : Maybe AccountData
+    , ephemeral : Maybe Ephemeral
+    , state : Maybe State
+    , summary : Maybe RoomSummary
+    , timeline : Maybe Timeline
+    , unreadNotifications : Maybe UnreadNotificationCounts
+    }
+
+
+type alias Ephemeral =
+    { events : Maybe (List Event) }
+
+
+type alias State =
+    { events : Maybe (List ClientEventWithoutRoomID) }
+
+
+type alias ClientEventWithoutRoomID =
+    { content : Json.Value
+    , eventId : String
+    , originServerTs : Int
+    , sender : String
+    , stateKey : Maybe String
+    , eventType : String
+    , unsigned : Maybe UnsignedData
+    }
+
+
+type alias UnsignedData =
+    PV.UnsignedData
+
+
+type alias RoomSummary =
+    { mHeroes : Maybe (List String)
+    , mInvitedMemberCount : Maybe Int
+    , mJoinedMemberCount : Maybe Int
+    }
+
+
+type alias Timeline =
+    { events : List ClientEventWithoutRoomID
+    , limited : Maybe Bool
+    , prevBatch : Maybe String
+    }
+
+
+type alias UnreadNotificationCounts =
+    { highlightCount : Maybe Int
+    , notificationCount : Maybe Int
+    }
+
+
+type alias KnockedRoom =
+    { knockState : Maybe KnockState }
+
+
+type alias KnockState =
+    { events : Maybe (List StrippedStateEvent) }
+
+
+type alias LeftRoom =
+    { accountData : Maybe AccountData
+    , state : Maybe State
+    , timeline : Maybe Timeline
+    }
+
+
+type alias DeviceLists =
+    { changed : Maybe (List String)
+    , left : Maybe (List String)
+    }
+
+
+type alias ToDevice =
+    { events : Maybe (List ToDeviceEvent) }
+
+
+type alias ToDeviceEvent =
+    { content : Maybe Json.Value
+    , sender : Maybe String
+    , eventType : Maybe String
+    }
+
+
+coderSyncResponse : Json.Coder SyncResponse
+coderSyncResponse =
+    PV.coderSyncResponse
+
+
+coderAccountData : Json.Coder AccountData
+coderAccountData =
+    PV.coderAccountData
+
+
+coderEvent : Json.Coder Event
+coderEvent =
+    PV.coderEvent
+
+
+coderPresence : Json.Coder Presence
+coderPresence =
+    PV.coderPresence
+
+
+coderRooms : Json.Coder Rooms
+coderRooms =
+    PV.coderRooms
+
+
+coderInvitedRoom : Json.Coder InvitedRoom
+coderInvitedRoom =
+    PV.coderInvitedRoom
+
+
+coderInviteState : Json.Coder InviteState
+coderInviteState =
+    PV.coderInviteState
+
+
+coderStrippedStateEvent : Json.Coder StrippedStateEvent
+coderStrippedStateEvent =
+    PV.coderStrippedStateEvent
+
+
+coderJoinedRoom : Json.Coder JoinedRoom
+coderJoinedRoom =
+    PV.coderJoinedRoom
+
+
+coderEphemeral : Json.Coder Ephemeral
+coderEphemeral =
+    PV.coderEphemeral
+
+
+coderState : Json.Coder State
+coderState =
+    PV.coderState
+
+
+coderClientEventWithoutRoomID : Json.Coder ClientEventWithoutRoomID
+coderClientEventWithoutRoomID =
+    PV.coderClientEventWithoutRoomID
+
+
+coderUnsignedData : Json.Coder UnsignedData
+coderUnsignedData =
+    PV.coderUnsignedData
+
+
+coderRoomSummary : Json.Coder RoomSummary
+coderRoomSummary =
+    PV.coderRoomSummary
+
+
+coderTimeline : Json.Coder Timeline
+coderTimeline =
+    PV.coderTimeline
+
+
+coderUnreadNotificationCounts : Json.Coder UnreadNotificationCounts
+coderUnreadNotificationCounts =
+    PV.coderUnreadNotificationCounts
+
+
+coderKnockedRoom : Json.Coder KnockedRoom
+coderKnockedRoom =
+    PV.coderKnockedRoom
+
+
+coderKnockState : Json.Coder KnockState
+coderKnockState =
+    PV.coderKnockState
+
+
+coderLeftRoom : Json.Coder LeftRoom
+coderLeftRoom =
+    PV.coderLeftRoom
+
+
+coderDeviceLists : Json.Coder DeviceLists
+coderDeviceLists =
+    PV.coderDeviceLists
+
+
+coderToDevice : Json.Coder ToDevice
+coderToDevice =
+    PV.coderToDevice
+
+
+coderToDeviceEvent : Json.Coder ToDeviceEvent
+coderToDeviceEvent =
+    PV.coderToDeviceEvent

src/Internal/Api/Sync/V4.elm

@@ -0,0 +1,436 @@
+module Internal.Api.Sync.V4 exposing (..)
+
+{-|
+
+
+# Sync response
+
+This API module represents the /sync endpoint on Matrix spec version v1.1.
+
+<https://spec.matrix.org/v1.4/client-server-api/#syncing>
+
+-}
+
+import FastDict exposing (Dict)
+import Internal.Api.Sync.V3 as PV
+import Internal.Tools.Json as Json
+
+
+type alias SyncResponse =
+    { accountData : Maybe AccountData
+    , deviceLists : Maybe DeviceLists
+    , deviceOneTimeKeysCount : Maybe (Dict String Int)
+    , deviceUnusedFallbackKeyTypes : List String
+    , nextBatch : String
+    , presence : Maybe Presence
+    , rooms : Maybe Rooms
+    , toDevice : Maybe ToDevice
+    }
+
+
+type alias AccountData =
+    { events : Maybe (List Event) }
+
+
+type alias Event =
+    { content : Json.Value
+    , eventType : String
+    }
+
+
+type alias Presence =
+    { events : Maybe (List Event) }
+
+
+type alias Rooms =
+    { invite : Maybe (Dict String InvitedRoom)
+    , join : Maybe (Dict String JoinedRoom)
+    , knock : Maybe (Dict String KnockedRoom)
+    , leave : Maybe (Dict String LeftRoom)
+    }
+
+
+type alias InvitedRoom =
+    { inviteState : Maybe InviteState }
+
+
+type alias InviteState =
+    { events : Maybe (List StrippedStateEvent) }
+
+
+type alias StrippedStateEvent =
+    { content : Json.Value
+    , sender : String
+    , stateKey : String
+    , eventType : String
+    }
+
+
+type alias JoinedRoom =
+    { accountData : Maybe AccountData
+    , ephemeral : Maybe Ephemeral
+    , state : Maybe State
+    , summary : Maybe RoomSummary
+    , timeline : Maybe Timeline
+    , unreadNotifications : Maybe UnreadNotificationCounts
+    , unreadThreadNotifications : Maybe (Dict String ThreadNotificationCounts)
+    }
+
+
+type alias Ephemeral =
+    { events : Maybe (List Event) }
+
+
+type alias State =
+    { events : Maybe (List ClientEventWithoutRoomID) }
+
+
+type alias ClientEventWithoutRoomID =
+    { content : Json.Value
+    , eventId : String
+    , originServerTs : Int
+    , sender : String
+    , stateKey : Maybe String
+    , eventType : String
+    , unsigned : Maybe UnsignedData
+    }
+
+
+type alias UnsignedData =
+    PV.UnsignedData
+
+
+type alias RoomSummary =
+    { mHeroes : Maybe (List String)
+    , mInvitedMemberCount : Maybe Int
+    , mJoinedMemberCount : Maybe Int
+    }
+
+
+type alias Timeline =
+    { events : List ClientEventWithoutRoomID
+    , limited : Maybe Bool
+    , prevBatch : Maybe String
+    }
+
+
+type alias UnreadNotificationCounts =
+    { highlightCount : Maybe Int
+    , notificationCount : Maybe Int
+    }
+
+
+type alias ThreadNotificationCounts =
+    { highlightCount : Maybe Int
+    , notificationCount : Maybe Int
+    }
+
+
+type alias KnockedRoom =
+    { knockState : Maybe KnockState }
+
+
+type alias KnockState =
+    { events : Maybe (List StrippedStateEvent) }
+
+
+type alias LeftRoom =
+    { accountData : Maybe AccountData
+    , state : Maybe State
+    , timeline : Maybe Timeline
+    }
+
+
+type alias DeviceLists =
+    { changed : Maybe (List String)
+    , left : Maybe (List String)
+    }
+
+
+type alias ToDevice =
+    { events : Maybe (List ToDeviceEvent) }
+
+
+type alias ToDeviceEvent =
+    { content : Maybe Json.Value
+    , sender : Maybe String
+    , eventType : Maybe String
+    }
+
+
+coderSyncResponse : Json.Coder SyncResponse
+coderSyncResponse =
+    Json.object8
+        { name = "SyncResponse"
+        , description = [ "The response for a sync request." ]
+        , init = SyncResponse
+        }
+        (Json.field.optional.value
+            { fieldName = "account_data"
+            , toField = .accountData
+            , description = [ "The global private data created by this user." ]
+            , coder = coderAccountData
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "device_lists"
+            , toField = .deviceLists
+            , description = [ "Information on end-to-end device updates, as specified in End-to-end encryption." ]
+            , coder = coderDeviceLists
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "device_one_time_keys_count"
+            , toField = .deviceOneTimeKeysCount
+            , description = [ "Information on end-to-end encryption keys, as specified in End-to-end encryption." ]
+            , coder = Json.fastDict Json.int
+            }
+        )
+        (Json.field.required
+            { fieldName = "device_unused_fallback_key_types"
+            , toField = .deviceUnusedFallbackKeyTypes
+            , description = [ "The unused fallback key algorithms." ]
+            , coder = Json.list Json.string
+            }
+        )
+        (Json.field.required
+            { fieldName = "next_batch"
+            , toField = .nextBatch
+            , description = [ "The batch token to supply in the since param of the next /sync request." ]
+            , coder = Json.string
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "presence"
+            , toField = .presence
+            , description = [ "The updates to the presence status of other users." ]
+            , coder = coderPresence
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "rooms"
+            , toField = .rooms
+            , description = [ "Updates to rooms." ]
+            , coder = coderRooms
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "to_device"
+            , toField = .toDevice
+            , description = [ "Information on the send-to-device messages for the client device, as defined in Send-to-Device messaging." ]
+            , coder = coderToDevice
+            }
+        )
+
+
+coderAccountData : Json.Coder AccountData
+coderAccountData =
+    PV.coderAccountData
+
+
+coderEvent : Json.Coder Event
+coderEvent =
+    PV.coderEvent
+
+
+coderPresence : Json.Coder Presence
+coderPresence =
+    PV.coderPresence
+
+
+coderRooms : Json.Coder Rooms
+coderRooms =
+    Json.object4
+        { name = "Rooms"
+        , description = [ "Updates to rooms." ]
+        , init = Rooms
+        }
+        (Json.field.optional.value
+            { fieldName = "invite"
+            , toField = .invite
+            , description = [ "The rooms that the user has been invited to, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderInvitedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "join"
+            , toField = .join
+            , description = [ "The rooms that the user has joined, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderJoinedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "knock"
+            , toField = .knock
+            , description = [ "The rooms that the user has knocked upon, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderKnockedRoom
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "leave"
+            , toField = .leave
+            , description = [ "The rooms that the user has left or been banned from, mapped as room ID to room information." ]
+            , coder = Json.fastDict coderLeftRoom
+            }
+        )
+
+
+coderInvitedRoom : Json.Coder InvitedRoom
+coderInvitedRoom =
+    PV.coderInvitedRoom
+
+
+coderInviteState : Json.Coder InviteState
+coderInviteState =
+    PV.coderInviteState
+
+
+coderStrippedStateEvent : Json.Coder StrippedStateEvent
+coderStrippedStateEvent =
+    PV.coderStrippedStateEvent
+
+
+coderJoinedRoom : Json.Coder JoinedRoom
+coderJoinedRoom =
+    Json.object7
+        { name = "JoinedRoom"
+        , description = [ "Information about a room the user has joined." ]
+        , init = JoinedRoom
+        }
+        (Json.field.optional.value
+            { fieldName = "account_data"
+            , toField = .accountData
+            , description = [ "The private data that this user has attached to this room." ]
+            , coder = coderAccountData
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "ephemeral"
+            , toField = .ephemeral
+            , description = [ "The ephemeral events in the room that aren’t recorded in the timeline or state of the room. e.g. typing." ]
+            , coder = coderEphemeral
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "state"
+            , toField = .state
+            , description = [ "Updates to the state, between the time indicated by the since parameter, and the start of the timeline (or all state up to the start of the timeline, if since is not given, or full_state is true).", "N.B. state updates for m.room.member events will be incomplete if lazy_load_members is enabled in the /sync filter, and only return the member events required to display the senders of the timeline events in this response." ]
+            , coder = coderState
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "summary"
+            , toField = .summary
+            , description = [ "Information about the room which clients may need to correctly render it to users." ]
+            , coder = coderRoomSummary
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "timeline"
+            , toField = .timeline
+            , description = [ "The timeline of messages and state changes in the room." ]
+            , coder = coderTimeline
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "unread_notifications"
+            , toField = .unreadNotifications
+            , description = [ "Counts of unread notifications for this room. See the Receiving notifications section for more information on how these are calculated.", "If unread_thread_notifications was specified as true on the RoomEventFilter, these counts will only be for the main timeline rather than all events in the room. See the threading module for more information.", "Changed in v1.4: Updated to reflect behaviour of having unread_thread_notifications as true in the RoomEventFilter for /sync." ]
+            , coder = coderUnreadNotificationCounts
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "unread_thread_notifications"
+            , toField = .unreadThreadNotifications
+            , description = [ "If unread_thread_notifications was specified as true on the RoomEventFilter, the notification counts for each thread in this room. The object is keyed by thread root ID, with values matching unread_notifications.", "If a thread does not have any notifications it can be omitted from this object. If no threads have notification counts, this whole object can be omitted.", "Added in v1.4" ]
+            , coder = Json.fastDict coderThreadNotificationCounts
+            }
+        )
+
+
+coderEphemeral : Json.Coder Ephemeral
+coderEphemeral =
+    PV.coderEphemeral
+
+
+coderState : Json.Coder State
+coderState =
+    PV.coderState
+
+
+coderClientEventWithoutRoomID : Json.Coder ClientEventWithoutRoomID
+coderClientEventWithoutRoomID =
+    PV.coderClientEventWithoutRoomID
+
+
+coderUnsignedData : Json.Coder UnsignedData
+coderUnsignedData =
+    PV.coderUnsignedData
+
+
+coderRoomSummary : Json.Coder RoomSummary
+coderRoomSummary =
+    PV.coderRoomSummary
+
+
+coderTimeline : Json.Coder Timeline
+coderTimeline =
+    PV.coderTimeline
+
+
+coderUnreadNotificationCounts : Json.Coder UnreadNotificationCounts
+coderUnreadNotificationCounts =
+    PV.coderUnreadNotificationCounts
+
+
+coderThreadNotificationCounts : Json.Coder ThreadNotificationCounts
+coderThreadNotificationCounts =
+    Json.object2
+        { name = "ThreadNotificationCounts"
+        , description = [ "The notification counts for each thread in this room." ]
+        , init = ThreadNotificationCounts
+        }
+        (Json.field.optional.value
+            { fieldName = "highlight_count"
+            , toField = .highlightCount
+            , description = [ "The number of unread notifications for this thread with the highlight flag set." ]
+            , coder = Json.int
+            }
+        )
+        (Json.field.optional.value
+            { fieldName = "notification_count"
+            , toField = .notificationCount
+            , description = [ "The total number of unread notifications for this thread." ]
+            , coder = Json.int
+            }
+        )
+
+
+coderKnockedRoom : Json.Coder KnockedRoom
+coderKnockedRoom =
+    PV.coderKnockedRoom
+
+
+coderKnockState : Json.Coder KnockState
+coderKnockState =
+    PV.coderKnockState
+
+
+coderLeftRoom : Json.Coder LeftRoom
+coderLeftRoom =
+    PV.coderLeftRoom
+
+
+coderDeviceLists : Json.Coder DeviceLists
+coderDeviceLists =
+    PV.coderDeviceLists
+
+
+coderToDevice : Json.Coder ToDevice
+coderToDevice =
+    PV.coderToDevice
+
+
+coderToDeviceEvent : Json.Coder ToDeviceEvent
+coderToDeviceEvent =
+    PV.coderToDeviceEvent

src/Internal/Api/Sync/V5.elm

@@ -0,0 +1,249 @@
+module Internal.Api.Sync.V5 exposing (..)
+
+{-|
+
+
+# Sync response
+
+This API module represents the /sync endpoint on Matrix spec version v1.1.
+
+<https://spec.matrix.org/v1.5/client-server-api/#syncing>
+
+-}
+
+import FastDict exposing (Dict)
+import Internal.Api.Sync.V4 as PV
+import Internal.Tools.Json as Json
+
+
+type alias SyncResponse =
+    { accountData : Maybe AccountData
+    , deviceLists : Maybe DeviceLists
+    , deviceOneTimeKeysCount : Maybe (Dict String Int)
+    , deviceUnusedFallbackKeyTypes : List String
+    , nextBatch : String
+    , presence : Maybe Presence
+    , rooms : Maybe Rooms
+    , toDevice : Maybe ToDevice
+    }
+
+
+type alias AccountData =
+    { events : Maybe (List Event) }
+
+
+type alias Event =
+    { content : Json.Value
+    , eventType : String
+    }
+
+
+type alias Presence =
+    { events : Maybe (List Event) }
+
+
+type alias Rooms =
+    { invite : Maybe (Dict String InvitedRoom)
+    , join : Maybe (Dict String JoinedRoom)
+    , knock : Maybe (Dict String KnockedRoom)
+    , leave : Maybe (Dict String LeftRoom)
+    }
+
+
+type alias InvitedRoom =
+    { inviteState : Maybe InviteState }
+
+
+type alias InviteState =
+    { events : Maybe (List StrippedStateEvent) }
+
+
+type alias StrippedStateEvent =
+    { content : Json.Value
+    , sender : String
+    , stateKey : String
+    , eventType : String
+    }
+
+
+type alias JoinedRoom =
+    { accountData : Maybe AccountData
+    , ephemeral : Maybe Ephemeral
+    , state : Maybe State
+    , summary : Maybe RoomSummary
+    , timeline : Maybe Timeline
+    , unreadNotifications : Maybe UnreadNotificationCounts
+    , unreadThreadNotifications : Maybe (Dict String ThreadNotificationCounts)
+    }
+
+
+type alias Ephemeral =
+    { events : Maybe (List Event) }
+
+
+type alias State =
+    { events : Maybe (List ClientEventWithoutRoomID) }
+
+
+type alias ClientEventWithoutRoomID =
+    { content : Json.Value
+    , eventId : String
+    , originServerTs : Int
+    , sender : String
+    , stateKey : Maybe String
+    , eventType : String
+    , unsigned : Maybe UnsignedData
+    }
+
+
+type alias UnsignedData = PV.UnsignedData
+
+
+type alias RoomSummary =
+    { mHeroes : Maybe (List String)
+    , mInvitedMemberCount : Maybe Int
+    , mJoinedMemberCount : Maybe Int
+    }
+
+
+type alias Timeline =
+    { events : List ClientEventWithoutRoomID
+    , limited : Maybe Bool
+    , prevBatch : Maybe String
+    }
+
+
+type alias UnreadNotificationCounts =
+    { highlightCount : Maybe Int
+    , notificationCount : Maybe Int
+    }
+
+
+type alias ThreadNotificationCounts =
+    { highlightCount : Maybe Int
+    , notificationCount : Maybe Int
+    }
+
+
+type alias KnockedRoom =
+    { knockState : Maybe KnockState }
+
+
+type alias KnockState =
+    { events : Maybe (List StrippedStateEvent) }
+
+
+type alias LeftRoom =
+    { accountData : Maybe AccountData
+    , state : Maybe State
+    , timeline : Maybe Timeline
+    }
+
+
+type alias DeviceLists =
+    { changed : Maybe (List String)
+    , left : Maybe (List String)
+    }
+
+
+type alias ToDevice =
+    { events : Maybe (List ToDeviceEvent) }
+
+
+type alias ToDeviceEvent =
+    { content : Maybe Json.Value
+    , sender : Maybe String
+    , eventType : Maybe String
+    }
+
+
+coderSyncResponse : Json.Coder SyncResponse
+coderSyncResponse = PV.coderSyncResponse
+
+
+coderAccountData : Json.Coder AccountData
+coderAccountData = PV.coderAccountData
+
+
+coderEvent : Json.Coder Event
+coderEvent = PV.coderEvent
+
+
+coderPresence : Json.Coder Presence
+coderPresence = PV.coderPresence
+
+
+coderRooms : Json.Coder Rooms
+coderRooms = PV.coderRooms
+
+
+coderInvitedRoom : Json.Coder InvitedRoom
+coderInvitedRoom = PV.coderInvitedRoom
+
+
+coderInviteState : Json.Coder InviteState
+coderInviteState = PV.coderInviteState
+
+
+coderStrippedStateEvent : Json.Coder StrippedStateEvent
+coderStrippedStateEvent = PV.coderStrippedStateEvent
+
+
+coderJoinedRoom : Json.Coder JoinedRoom
+coderJoinedRoom = PV.coderJoinedRoom
+
+
+coderEphemeral : Json.Coder Ephemeral
+coderEphemeral = PV.coderEphemeral
+
+
+coderState : Json.Coder State
+coderState = PV.coderState
+
+
+coderClientEventWithoutRoomID : Json.Coder ClientEventWithoutRoomID
+coderClientEventWithoutRoomID = PV.coderClientEventWithoutRoomID
+
+
+coderUnsignedData : Json.Coder UnsignedData
+coderUnsignedData = PV.coderUnsignedData
+
+
+coderRoomSummary : Json.Coder RoomSummary
+coderRoomSummary = PV.coderRoomSummary
+
+
+coderTimeline : Json.Coder Timeline
+coderTimeline = PV.coderTimeline
+
+
+coderUnreadNotificationCounts : Json.Coder UnreadNotificationCounts
+coderUnreadNotificationCounts = PV.coderUnreadNotificationCounts
+
+
+coderThreadNotificationCounts : Json.Coder ThreadNotificationCounts
+coderThreadNotificationCounts = PV.coderThreadNotificationCounts
+
+
+coderKnockedRoom : Json.Coder KnockedRoom
+coderKnockedRoom = PV.coderKnockedRoom
+
+
+coderKnockState : Json.Coder KnockState
+coderKnockState = PV.coderKnockState
+
+
+coderLeftRoom : Json.Coder LeftRoom
+coderLeftRoom = PV.coderLeftRoom
+
+
+coderDeviceLists : Json.Coder DeviceLists
+coderDeviceLists = PV.coderDeviceLists
+
+
+coderToDevice : Json.Coder ToDevice
+coderToDevice = PV.coderToDevice
+
+
+coderToDeviceEvent : Json.Coder ToDeviceEvent
+coderToDeviceEvent = PV.coderToDeviceEvent