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import {AppState, AppStateStatus} from 'react-native'
import {QueryClient, focusManager} from '@tanstack/react-query'
import {isNative} from '#/platform/detection'
focusManager.setEventListener(onFocus => {
if (isNative) {
const subscription = AppState.addEventListener(
'change',
(status: AppStateStatus) => {
focusManager.setFocused(status === 'active')
},
)
return () => subscription.remove()
} else if (typeof window !== 'undefined' && window.addEventListener) {
// these handlers are a bit redundant but focus catches when the browser window
// is blurred/focused while visibilitychange seems to only handle when the
// window minimizes (both of them catch tab changes)
// there's no harm to redundant fires because refetchOnWindowFocus is only
// used with queries that employ stale data times
const handler = () => onFocus()
window.addEventListener('focus', handler, false)
window.addEventListener('visibilitychange', handler, false)
return () => {
window.removeEventListener('visibilitychange', handler)
window.removeEventListener('focus', handler)
}
}
})
export const queryClient = new QueryClient({
defaultOptions: {
queries: {
// NOTE
// refetchOnWindowFocus breaks some UIs (like feeds)
// so we only selectively want to enable this
// -prf
refetchOnWindowFocus: false,
// Structural sharing between responses makes it impossible to rely on
// "first seen" timestamps on objects to determine if they're fresh.
// Disable this optimization so that we can rely on "first seen" timestamps.
structuralSharing: false,
// We don't want to retry queries by default, because in most cases we
// want to fail early and show a response to the user. There are
// exceptions, and those can be made on a per-query basis. For others, we
// should give users controls to retry.
retry: false,
},
},
})
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