0. tests for event replay
Tests are now included for the event replay features. This includes many fixes on top of
the last commit as well as some tweaks to config module values.
1. activity module
An activity module is created to track the useractive events and provide a counter for them.
It also encapsulates logic to discard old useractive events.
2. web module
A web module is created. This module serves a static webpage showing runtime information.
Currently it only shows a snapshot of the user activity data. It is my intention that it
eventually also shows an audit log, known users and channels, uptime, and more. Future work
will also be needed in order to use HTML templating so that it doesn't look so... basic.
Live updates to the information may also be desired.
Signed-off-by: Ava Affine <ava@sunnypup.io>
This commit introduces the ability to reconfigure modules/event subscribers by
replaying previously stored events at startup. This way modules/subscribers can
always come up with the latest activity and data that was present at close at the
last run of the program. This process also includes the disposal of unneeded events
to minimize disk use over time. The changes include the following:
1. Event interface is extended with the Disposable() function
unimplemented stubs for existing interface implementations
2. state.Init() is split into Init() and Start()
Init() now initialized the file used by eventStream, and puts in place a 0 size
memory cache as a temporary measure on top of the file.
Start() reads Pop()s documents one by one from the temp nil-cache eventStream,
it attempts to dispose of each event and if the event is not disposable it is
pushed onto a second temporary no-memory-cache buffer which is then reverse ordered.
The underlying file is truncated and reopened.
Finally, the real eventStream is allocated, with in memory cache. All events in the
second buffer are published (sent to subscribers as well as added to the new eventStream).
3. Updates to main() to support Init() vs Start()
Signed-off-by: Ava Affine <ava@sunnypup.io>
