Store events that are to be broadcasted in the database, and fetch
events to serve in the /api/event stream to the client from the
database. This ensures that events are not lost if the operation to
open the stream takes longer than usual, or the client was not connected
at the time the event was broadcast.
To ensure no events are lost in the transition from server generating
the page to the client hydrating and establishing a connection with the
event stream, the /api/last-event-id endpoint is first queried on the
server before any other entities is fetched from the database. The
client then passes this id when establishing the event stream, and
receives all events greater than that id.
I firmly believe in free software.
The application I'm making here have capabilities that I've not seen in
any system. It presents itself as an opportunity to collaborate on a
tool that serves the people rather than corporations. Whose incentives
are to help people rather, not make the most money. And whose terms
ensure that these freedoms and incentives cannot be taken back or
subverted.
I license this software under the AGPL.
Use a single mutable location, event, slot, etc, for each unique
resource that keeps track of the local editable client copy and
the server copy of the data contained in it.
This makes it much simpler to update these data structures as I can take
advantage of the v-model bindings in Vue.js and work with the system
instead of against it.
Use the ClientSchedule data structure for deserialising and tracking
edit state on the client instead of trying to directly deal with the
ApiSchedule type which is not build for ease of edits or rendering.
Rename and refactor the types passed over the API to be based on an
entity that's either living or a tombstone. A living entity has a
deleted property that's either undefined or false, while a tombstone
has a deleted property set to true. All entities have a numeric id
and an updatedAt timestamp.
To sync entities, an array of replacements are passed around. Living
entities are replaced with tombstones when they're deleted. And
tombstones are replaced with living entities when restored.
