This'll be a bit tricky, since there are many sources of data (weather, epi, mobility), and there are more dimensions other than time (country, admin region), so we could do this in different ways, but initial proposal:
Limit date picker to dates for which there's any data for the selected countries. Most users will be focused on 1 country at a time, so let's design for that. We need to allow selecting dates for which any data source has data, because otherwise the lack of data from 1 source blocks access to data from all sources.
Work:
[ ] Way to get valid date ranges for each data source.
[ ] Update date-picker thing with valid dates.
[ ] Make display robust against missing data. Currently when switching to a date for which there's no weather data, the admin polygons are black. Quite terrible.
This'll be a bit tricky, since there are many sources of data (weather, epi, mobility), and there are more dimensions other than time (country, admin region), so we could do this in different ways, but initial proposal:
Limit date picker to dates for which there's any data for the selected countries. Most users will be focused on 1 country at a time, so let's design for that. We need to allow selecting dates for which any data source has data, because otherwise the lack of data from 1 source blocks access to data from all sources.
Work: