Charts: Load GeoChart package explicitly

[nerrad]

Fixes #

Proposed changes

• Load the Google geochart package explicitly when rendering @automattic/charts GeoChart, while preserving the react-google-charts default corechart and controls packages.
• Add unit coverage to verify the GeoChart wrapper passes the expected Google Charts package list.
• Add a patch changelog entry for @automattic/charts.

Why this is being proposed

The Premium Analytics Locations widget renders GeoChart from @automattic/charts. That wrapper delegates to react-google-charts, whose default package list is corechart and controls.

GeoChart itself requires the Google Charts geochart package. Without requesting that package up front, Google Charts can attempt a later package load after the loader has already initialized with a different version request elsewhere on the page. In the observed page this surfaced as:

Attempting to load version '51' of Google Charts, but the previously loaded 'current' will be used instead.

This PR keeps the existing react-google-charts defaults and adds only the missing geochart package for the GeoChart component. That makes the component's loader request match the chart type it renders, and avoids relying on Google Charts internals or another page script to backfill the package later.

Impact review

• Jetpack: Directly affects @automattic/charts GeoChart consumers. Current in-repo consumers are Premium Analytics Locations, Premium Analytics visitors-by-location, and Podcast stats locations. Non-GeoChart consumers of @automattic/charts are not expected to change because this prop is passed only by the GeoChart wrapper.
• Calypso: Current Calypso code search shows Calypso has its own Stats GeoChart implementation and loader, used by Stats Locations, separate from @automattic/charts GeoChart. Calypso also consumes @automattic/charts for dashboard charts such as monitoring HTTP responses and monitoring request methods, but those components do not use this wrapper. This PR should only matter to Calypso if it later adopts this GeoChart export or upgrades an affected bundled consumer.
• Dotcom: Dotcom legacy Stats GeoChart code was reviewed, but the source is not publicly linkable from this public PR. It uses its own Google Visualization GeoChart path, not this @automattic/charts wrapper. Bundled Dotcom/Stats assets that include @automattic/charts line-chart code are not expected to change unless they render this package's GeoChart.
• Loader behavior: This does not hard-code a Google Charts version. It continues to let react-google-charts request its default version, while ensuring the package list includes the package required by the chart type.
• Data/privacy: The change only affects which Google Charts package is requested before rendering. It does not add tracking, change analytics payloads, or alter chart data.

Related product discussion/links

• None.

Does this pull request change what data or activity we track or use?

No.

Testing instructions

• Run pnpm --filter @automattic/charts test -- geo-chart.
• Run pnpm --filter @automattic/charts typecheck.
• Run pnpm --filter @automattic/charts build.
• Run pnpm --filter @automattic/jetpack-premium-analytics typecheck.
• Run pnpm --filter @automattic/jetpack-premium-analytics build.
• Render the Premium Analytics Locations widget and confirm the Google Charts version warning is no longer emitted when GeoChart loads.

[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WoA dev site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin (Jetpack or WordPress.com Site Helper), and enable the codex/premium-analytics-geochart-package branch.
• To test on Simple, run the following command on your sandbox:

bin/jetpack-downloader test jetpack codex/premium-analytics-geochart-package

bin/jetpack-downloader test jetpack-mu-wpcom-plugin codex/premium-analytics-geochart-package

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[github-actions]

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[jp-launch-control]

Code Coverage Summary

Coverage changed in 1 file.

File	Coverage	Δ%	Δ Uncovered
projects/js-packages/charts/src/charts/geo-chart/geo-chart.tsx	36/37 (97.30%)	0.08%	0 💚

Full summary · PHP report · JS report

[nerrad]

I'm not confident I understand fully the implications of this change, but on the surface it does look like there were some implicit dependencies on Google Charts being loaded somewhere in the dependency chain (vs explicit dependencies).

Either way, this needs a review by folks more familiar with these dependencies. I'm away for the next week so feel free to take over.