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import React from 'react'
import {SharedValue, useSharedValue} from 'react-native-reanimated'
import {DialogControlRefProps} from '#/components/Dialog'
import {Provider as GlobalDialogsProvider} from '#/components/dialogs/Context'
interface IDialogContext {
/**
* The currently active `useDialogControl` hooks.
*/
activeDialogs: React.MutableRefObject<
Map<string, React.MutableRefObject<DialogControlRefProps>>
>
/**
* The currently open dialogs, referenced by their IDs, generated from
* `useId`.
*/
openDialogs: React.MutableRefObject<Set<string>>
/**
* The counterpart to `accessibilityViewIsModal` for Android. This property
* applies to the parent of all non-modal views, and prevents TalkBack from
* navigating within content beneath an open dialog.
*
* @see https://reactnative.dev/docs/accessibility#importantforaccessibility-android
*/
importantForAccessibility: SharedValue<'auto' | 'no-hide-descendants'>
}
const DialogContext = React.createContext<IDialogContext>({} as IDialogContext)
const DialogControlContext = React.createContext<{
closeAllDialogs(): boolean
setDialogIsOpen(id: string, isOpen: boolean): void
}>({
closeAllDialogs: () => false,
setDialogIsOpen: () => {},
})
export function useDialogStateContext() {
return React.useContext(DialogContext)
}
export function useDialogStateControlContext() {
return React.useContext(DialogControlContext)
}
export function Provider({children}: React.PropsWithChildren<{}>) {
const activeDialogs = React.useRef<
Map<string, React.MutableRefObject<DialogControlRefProps>>
>(new Map())
const openDialogs = React.useRef<Set<string>>(new Set())
const importantForAccessibility = useSharedValue<
'auto' | 'no-hide-descendants'
>('auto')
const closeAllDialogs = React.useCallback(() => {
openDialogs.current.forEach(id => {
const dialog = activeDialogs.current.get(id)
if (dialog) dialog.current.close()
})
return openDialogs.current.size > 0
}, [])
const setDialogIsOpen = React.useCallback(
(id: string, isOpen: boolean) => {
if (isOpen) {
openDialogs.current.add(id)
importantForAccessibility.value = 'no-hide-descendants'
} else {
openDialogs.current.delete(id)
if (openDialogs.current.size < 1) {
importantForAccessibility.value = 'auto'
}
}
},
[importantForAccessibility],
)
const context = React.useMemo<IDialogContext>(
() => ({
activeDialogs,
openDialogs,
importantForAccessibility,
}),
[importantForAccessibility, activeDialogs, openDialogs],
)
const controls = React.useMemo(
() => ({closeAllDialogs, setDialogIsOpen}),
[closeAllDialogs, setDialogIsOpen],
)
return (
<DialogContext.Provider value={context}>
<DialogControlContext.Provider value={controls}>
<GlobalDialogsProvider>{children}</GlobalDialogsProvider>
</DialogControlContext.Provider>
</DialogContext.Provider>
)
}
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