overleaf/services/web/frontend/js/features/ide-react/context/permissions-context.tsx

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import { createContext, useContext, useEffect } from 'react'
import { useConnectionContext } from '@/features/ide-react/context/connection-context'
import { useEditorContext } from '@/shared/context/editor-context'
import getMeta from '@/utils/meta'
import {
Permissions,
PermissionsLevel,
} from '@/features/ide-react/types/permissions'
import useScopeValue from '@/shared/hooks/use-scope-value'
import { DeepReadonly } from '../../../../../types/utils'
export const PermissionsContext = createContext<Permissions | undefined>(
undefined
)
const permissionsMap: DeepReadonly<Record<PermissionsLevel, Permissions>> = {
readOnly: {
read: true,
write: false,
admin: false,
comment: true,
},
readAndWrite: {
read: true,
write: true,
admin: false,
comment: true,
},
owner: {
read: true,
write: true,
admin: true,
comment: true,
},
}
const anonymousPermissionsMap: typeof permissionsMap = {
readOnly: { ...permissionsMap.readOnly, comment: false },
readAndWrite: { ...permissionsMap.readAndWrite, comment: false },
owner: { ...permissionsMap.owner, comment: false },
}
export const PermissionsProvider: React.FC = ({ children }) => {
const [permissions, setPermissions] =
useScopeValue<Readonly<Permissions>>('permissions')
const { connectionState } = useConnectionContext()
const { permissionsLevel } = useEditorContext() as {
permissionsLevel: PermissionsLevel
}
const anonymous = getMeta('ol-anonymous')
useEffect(() => {
const activePermissionsMap = anonymous
? anonymousPermissionsMap
: permissionsMap
setPermissions(activePermissionsMap[permissionsLevel])
}, [anonymous, permissionsLevel, setPermissions])
useEffect(() => {
if (connectionState.forceDisconnected) {
setPermissions(prevState => ({ ...prevState, write: false }))
}
}, [connectionState.forceDisconnected, setPermissions])
return (
<PermissionsContext.Provider value={permissions}>
{children}
</PermissionsContext.Provider>
)
}
export function usePermissionsContext() {
const context = useContext(PermissionsContext)
if (!context) {
throw new Error(
'usePermissionsContext is only available inside PermissionsProvider'
)
}
return context
}