refactor: Updates to isolated hooks

[sandrahoang686]

Hey @gadomski, I figured it would be quicker if I just made the changes I was going to comment onto your PR to hopefully be quicker. Let me know what you think? Should be able to follow my commits. I made sure to validate the behavior matched prod and these changes did - feel free to manually validate as well!

Changes:

• Updated the useDocumentTitle to no longer be a hook and instead made it a fn. The useEffect which depended on value from useStacValue - I just kept in app.tsx because thats the only place that would need that subscription so I didn't think a separate hook was needed.
• Cleaned up useHrefParam
• Updated useStacFilters to either return the filtered assets or the original assets array instead of undefined. This way we dont have to pass in collections & filteredCollections separately (same with items).
  • So => collections={filteredCollections} and same with items

[gadomski]

In general, makes sense, thanks for the fixups! One filename nit, and one bug. Don't know quite where it broke, but the collection filtering makes the filter disappear under this case:

Screen.Recording.2025-12-11.at.5.17.58.PM.mov

The same might be an issue for items as well.

[gadomski]

Don't love utils/utilties.ts as a file name. I think a top-level utils.tsx should be good enough?

[sandrahoang686]

updated to utils/index.ts because didn't know if we wanted a utils/ dir and then a utils.tsx file at the same level

[gadomski]

Maybe utils/title.ts?

[sandrahoang686]

@gadomski thanks for reviewing! I couldn't replicate the bug though...

Screen.Recording.2025-12-14.at.7.02.12.PM.mov

is how its behaving for me locally. wasn't able to get it to dissapear and tried other things - you have other replication steps?

[gadomski]

Reproduction steps:

1. Go to http://localhost:5173/stac-map/?href=https://stac.eoapi.dev/
2. Click "Fetch all collections"
3. Click on the "Filter" pane
4. Drag the right side of the slider to the left

Screen.Recording.2025-12-15.at.6.14.01.AM.mov

[gadomski]

In general, makes sense, thanks for the fixups! One filename nit, and one bug. Don't know quite where it broke, but the collection filtering makes the filter disappear under this case:

Screen.Recording.2025-12-11.at.5.17.58.PM.mov

The same might be an issue for items as well.

[gadomski]

Maybe utils/title.ts?

[sandrahoang686]

@gadomski alright solved for bug - what happened was the Filter component relied on the collections & items assets instead of the filtered. Because my changes only now pass the filtered assets - datetimes couldn't be calculated in the component with the pre-filtered assets.

So I isolated that functionality into a fn getDateTimes and calculate it at the top level since that is where those assets are and pass it in as a prop. Not great for prop drilling but I think better than originally passing in the pre-filtered assets instead!

This is ready for re-review 🙇🏼

[gadomski]

Awesome, thanks for this!

[gadomski]

Awesome, thanks for this!