LastMessage in chat was encoded in bytes so that we don't have to
encoded/decode everytime we save to db or pass the client.
An issue with emoji surfaced a problem with this approach.
Chat.LastClockValue represent the last clock value of any type of
message exchanged in a chat (emoji,group membership updates, contact
updates).
So when receving a new message, we should update LastMessage if the
clock of the LastMessage is lower than the received message, and we
should not only check LastClockValue, otherwise the message might be
discarded although it is the most recent.
This commit fixes the issue by keeping LastMessage as an object and
comparing LastMessage.Clock instead of LastClockValue
Why make the changes?
Mainly performance, those fields are almost always present in the
database but they are re-calculated on load by the client as it does not
have necessarily access to it.
What has changed?
- Remove `_legacy` persistence namespaces as it's a vestige of the
initial move frmo status-react to status-go
- Pulling chats is now a join with contacts to add contact & alias
If the user deletes/leaves a group chat, the chat is set as not active.
This means that if we are re-invited to the chat it won't be shown to
the user.
This commit changes this behavior so that if we are re-invited to the
chat it is set as active again.
This commit pegs the clock value to maximum + 120 seconds from the whisper
timestamp.
In this way the we avoid the scenario where a client makes the timestamp
increase arbitrarely.
This commit does a few things:
1) Handle membership updates using protobuf and adds the relevant
endpoints.
2) Store in memory a map of chats + contacts for faster lookups, which
are then flushed to disk on each update
3) Validate incoming messages
Sorry for the large pr, but you know, v1 :)
* Use a single Message type `v1/message.go` and `message.go` are the same now, and they embed `protobuf.ChatMessage`
* Use `SendChatMessage` for sending chat messages, this is basically the old `Send` but a bit more flexible so we can send different message types (stickers,commands), and not just text.
* Remove dedup from services/shhext. Because now we process in status-protocol, dedup makes less sense, as those messages are going to be processed anyway, so removing for now, we can re-evaluate if bringing it to status-go or not.
* Change the various retrieveX method to a single one:
`RetrieveAll` will be processing those messages that it can process (Currently only `Message`), and return the rest in `RawMessages` (still transit). The format for the response is:
`Chats`: -> The chats updated by receiving the message
`Messages`: -> The messages retrieved (already matched to a chat)
`Contacts`: -> The contacts updated by the messages
`RawMessages` -> Anything else that can't be parsed, eventually as we move everything to status-protocol-go this will go away.