Fixes browser console warnings and errors related to the event timeline
and strategy form.
- **Event Timeline**: Addressed a warning where the environment filter
rendered with a default environment value (production) before
environments were fully loaded.
- **Strategy Form**: Resolved an error caused by forwarding the enabled
prop as a boolean.
Follow-up to: https://github.com/Unleash/unleash/pull/8642
Introduces a reusable `Highlight` component that leverages the Context
API pattern, enabling highlight effects to be triggered from anywhere in
the application.
This update refactors the existing highlight effect in the event
timeline to use the new Highlight component and extends the
functionality to include the Unleash AI experiment, triggered by its
entry in the "New in Unleash" section.
https://linear.app/unleash/issue/2-2743/open-the-signal-query-endpoint-to-everyone-not-only-admins
The new signal query endpoint is now open for every Unleash user, not
only admins.
This PR allows non-admins to view signals in the event timeline. It also
updates the signals tooltip to be shown to all users, not just admins,
under the following assumptions:
- `!signalsSuggestionSeen` - Current user has not dismissed the signals
tip
- `isEnterprise()` - Enterprise instance
- `signalsEnabled` - The signals feature flag is enabled
- `!signalsLoading` - Signals have finished loading (avoids flickering)
- `signals.length === 0` - We can't find any signals in the selected
timespan
https://linear.app/unleash/issue/2-2729/add-event-timeline-to-new-in-unleash
Adds the new event timeline to the "New in Unleash" section.
Unlike Signals & Actions, the Event timeline doesn’t have a dedicated
page to link to, as it's a global component within the layout. To
address this, we extend the "check it out" action in the New in Unleash
component by supporting a callback instead of a link. When the user
clicks "check it out" for this new item, the page smoothly scrolls to
the top, ~~the timeline opens (if it's not already)~~, and a temporary
highlight effect is triggered on the timeline header button.
Also includes some scouting / slight UX adjustments.
https://github.com/user-attachments/assets/fe49f21b-5986-46b2-8fc6-acb4daef9d08
https://linear.app/unleash/issue/2-2723/add-signals-tip
Adds a tip to the event timeline regarding the usage of signals.
The conditions for it to show up are the following:
- `!signalsSuggestionSeen` - The current user has not closed the tip yet
- `isEnterprise()` - The Unleash instance is an Enterprise instance
(signals are currently Enterprise-only)
- `isAdmin` - The current user is an admin (signals are currently
admin-only)
- `signalsEnabled` - The signals feature flag is currently enabled
- `!loading` - Signal endpoints have not finished loading (prevents
flickering)
- `signalEndpoints.length === 0` - The Unleash instance currently has
zero configured signal endpoints (signals feature is not being used)

https://linear.app/unleash/issue/2-2703/align-with-ux
Timeline UI/UX improvements after sync with UX, including:
- Added some spacing between each event in the grouping tooltip
- Aligned the x events occurred header with filter dropdown
- Improved the strategy icon somewhat so it doesn't look as off center
- New timeline icon
- Improve icon position relative to timestamp on each event in the
grouping tooltip
- Changed text color in dropdowns to a lighter gray
- Removed bold formatting in tooltip
- Adjusted paddings and margins
- Added close button
- Added shadow
- Added left border
There are a few details missing, which will be tackled in separate PRs.

---------
Co-authored-by: Nuno Góis <github@nunogois.com>
https://linear.app/unleash/issue/2-2665/show-signals-in-the-event-timeline
Implements signals in the event timeline.
This merges events and signals into a unified `TimelineEvent`
abstraction, streamlining the data structure to only include properties
relevant to the timeline.
Key changes:
- Refactors the timeline logic to handle both events and signals through
the new abstraction.
- Introduces the `useSignalQuery` hook, modeled after `useEventSearch`,
as both serve similar purposes, albeit for different resource types.
Note: The signals suggestion alert is not included and will be addressed
in a future task.

Fixes 2 bugs:
- The initial state of the event timeline should have `open: false`, not
`true` - Closed by default, unless opened
- The event timeline should unmount when hidden - It should not emit
requests when closed
https://linear.app/unleash/issue/2-2700/persist-timeline-state-in-local-storage
Implements persistent state management for the event timeline using
local storage.
I believe this improves UX by persisting both the timeline toggle
(visibility) state and applied filters across page refreshes.
Includes some scouting/refactoring and some workarounds to prevent the
timeline from animating on page load (in most cases).
https://linear.app/unleash/issue/2-2662/make-the-event-timeline-available-globally-through-a-new-header-buttonhttps://github.com/user-attachments/assets/bde38ee8-cdd8-409d-a95e-0c06189e3d9b
(In the video, you’ll notice a slight delay before new events show up.
This happens because the timeline automatically refreshes every 10
seconds)
Removes the event timeline from the event log and integrates it into a
new header option.
I chose a middle-ground approach between options 1 and 2 from our Figma
sketches. This solution provides the best of both worlds IMO: the
timeline stands out as a global component, distinct from the current
page context, while sliding in rather than overlapping the content. This
way, users can view the timeline alongside the page content.
https://linear.app/unleash/issue/2-2664/implement-event-tooltips
Implements event tooltips in the new event timeline.
This leverages our current `feature-event-formatter-md` to provide both
a label and a summary of the event. Whenever our new `eventTimeline`
flag is enabled, we enrich our events in our event search endpoint with
this information. We've discussed different options here and reached the
conclusion that this is the best path forward for now. This way we are
being consistent, DRY, relatively performant and it also gives us a
happy path forward if we decide to scope in the event log revamp, since
this data will already be present there.
We also added a new `label` property to each of our event types
currently in our event formatter. This way we can have a concise,
human-readable name for each event type, instead of exposing the
internal event type string.
~~We also fixed the way the event formatter handled bold text (as in,
**bold**). Before, it was wrapping them in *single asterisks*, but now
we're using **double asterisks**. We also abstracted this away into a
helper method aptly named `bold`. Of course, this change meant that a
bunch of snapshots and tests needed to be updated.~~
~~This new `bold` method also makes it super easy to revert this
decision if we choose to, for any reason. However I believe we should
stick with markdown formatting, since it is the most commonly supported
formatting syntax, so I see this as an important fix. It's also in the
name of the formatter (`md`). I also believe bold was the original
intent. If we want italic formatting we should implement it separately
at a later point.~~
Edit: It was _bold_ of me to assume this would work out of the box on
Slack. It does when you manually try it on the app, but not when using
the Slack client. See: https://github.com/Unleash/unleash/pull/8222


Adds tests for event log filters (to ensure we show the right filters)
and refactors the implementation of eventlogfilters.
Primary goal of refactoring:
- Make it so that all filters are created in one single list (instead of
injected from different variables)
- Avoid making a requests for features (and to a lesser extent:
projects) if you can't use them for filters
- Improve code structure
Begins cleaning up the front end.
Removes the "legacy" event log component in favor of only using the new
one. What we do is simply not to show the filters if you're not on
enterprise.
This means that we'll get pagination (and maybe exports?) for everyone.
It also means that you can reverse-engineer the filters and use them
even on non-enterprise, as long as you're happy editing URLs manually.
However, putting it behind a flag on the front end always exposed that
kind of risk, so I don't think this is a bad move.
Adds event creator data to the event creator filter.
It uses a new useEventCreators hook to fetch event creators from the new
API, and uses that to populate the event creators filter.
Adds sticky pagination to the event log:

This PR uses the sticky pagination bar that we use on other tables to
navigate the event search results.
## Decisions / discussion points
The trickiest issue here is how we calculate the next and previous page
offsets. This is tricky because we don't expose the page number to the
API, but the raw offset itself. This abstraction makes it possible to
set an offset that isn't a multiple of the page size.
Say the page size is 25. If you manually set an offset of 30 (through
changing the URL), what do you expect should happen when you:
- load the page? Should you see results 31 to 55? 26 to 50?
- go to the next page? Should your next offset be 55 or 50?
- previous page: should your previous page offset be 5? 25? 0?
The current implementation has taken what I thought would be the easiest
way out: If your offset is between two multiples of the page size, we'll
consider it to be the lower of the two.
- The next page's offset is the next multiple of the page size that is
higher than the current offset (50 in the example above).
- The previous page's offset will be not the nearest lower page size,
but the one below. So if you set offset 35 and page size 25, your next
page will take you back to 0 (as if the offset was 25).
We could instead update the API to accept `page` instead of offset, but
that wouldn't align with how other tables do it.
Comparing to the global flags table, if you set an offset that isn't a
multiple of the page size, we force the offset to 0. We can look at
handling it like that in a follow-up, though I'd argue that forcing it
to be the next lower multiple of the page size would make more sense.
One issue that appears when you can set custom offsets is that the
little "showing x-y items out of z" gets out of whack (because it only
operates on multiples of the page size (seemingly))

## The Event Log as a table
While we haven't used the HTML `table` element to render the event log,
I would argue that it _is_ actually a table. It displays tabular data.
Each card (row) has an id, a project, etc.
The current implementation forces the event log search to act as a table
state manager, but we could transform the event list into an events
table to better align the pagination handling. The best part? We can
keep the exact same design too. A table doesn't have to _look_ like a
table to be a table.
Hooks up the new Event search and filtering capabilities to the new
Event Log component. In doing so, it also splits the existing EventLog
component into two: `LegacyEventLog` and `NewEventLog`. The naming is
probably temporary, as the old EventLog isn't really legacy yet. But we
can rename them later.
The other half of #7768 .
This is just the state management part of #7768.
Adds a useEventLogSearch hook.
All the filters work except for the date filters. They don't work
because the query parameters in the API don't match what's here, but an
update to the API is coming in a follow-up.
It's a little tricky to handle this because the three different event
logs should have slightly different filters, which makes making the type
checker happy a bit of a pain. However, I'd like to revisit this in a
follow-up PR.
Creates a new useEventSearch hook based on the useFeatureSearch hook.
Moves the old useEventSearch hook into useLegacyEventSearch and updates
references to it.
I don't know yet whether this'll work entirely as expected, but I plan
on making any necessary configurations when I implement the state
management in a follow-up PR.
But because this is pretty much a straight copy-paste from
useFeatureSearch (only adjusting types, I think), I also think it might
be possible to turn this into a generic search template. Not sure if now
is the time, but worth thinking about, I think.
This change primarily adds all flags to the flag filter and restructures
the filters component. Instead of splitting into three smaller
components, we now handle more data in the main component.
We might wanna turn them back to smaller components later, but I think
this'll be easier to work with.
Fixes an issue where the filter buttons were both too far down and too
far to the right.
The issue was that the wrapper body imposed a pretty substantial bit
of padding. However, the filter buttons already came with their own
bit of padding. The result of this was alignment issues.
To fix it I have:
- opened the `Filters` component up to be styled with styled components
And conditionally (when isEnterprise and the flag is on):
- set the page body to have no padding.
- added a wrapper with padding around the event search results for
This feels a little messy to me, but I also think that because it's
still in heavy development, it might change later. I'd be happy to have
suggestions forbetter implementations.
What makes this extra tricky is that the top padding differs depending
on whether you have the filters there or not, so I couldn't find a way
to just remove that component and be done with it. I may very well have
missed somehing, though.
Before:

After:

Changes the type used by the useEventSearch hook to be `EventSchema`
from OpenAPI instead. This is more accurate with what we're actually
getting. And crucially for the event log search, it contains the
`createdByUserId` property that we need to filter out events.
It's mostly a straightforward find and replace except for one instance
where we need to do some extra fiddling. There's an inline comment
explaining that.
Adds placeholder filter buttons (that don't work at all) yet to the
three event logs.
Flag logs get to choose to and from dates, created by, and event type.
Project logs get all that flag logs get + a filter for flag.
The global log gets all project log filters + a project filter.
There's still work to be done to add data to createdBy, eventType, to
hook it up to the API, and to finalize the layout, but I wanted to get a
rough outline in to iterate on later. The eventType icon will also need
to be decided on.

Lots of work here, mostly because I didn't want to turn off the
`noImplicitAnyLet` lint. This PR tries its best to type all the untyped
lets biome complained about (Don't ask me how many hours that took or
how many lints that was >200...), which in the future will force test
authors to actually type their global variables setup in `beforeAll`.
---------
Co-authored-by: Gastón Fournier <gaston@getunleash.io>