overleaf/services/web/frontend/js/shared/context/ide-context.tsx

import { createContext, FC, useContext, useMemo } from 'react'
import { ScopeValueStore } from '../../../../types/ide/scope-value-store'
import { Scope } from '../../../../types/angular/scope'
import getMeta from '@/utils/meta'
import { ScopeEventEmitter } from '../../../../types/ide/scope-event-emitter'

export type Ide = {
  [key: string]: any // TODO: define the rest of the `ide` and `$scope` properties
  $scope: Scope
}

type IdeContextValue = Ide & {
  isReactIde: boolean
  scopeStore: ScopeValueStore
  scopeEventEmitter: ScopeEventEmitter
}

const IdeContext = createContext<IdeContextValue | undefined>(undefined)
const isReactIde: boolean = getMeta('ol-idePageReact')

export const IdeProvider: FC<{
  ide: Ide
  scopeStore: ScopeValueStore
  scopeEventEmitter: ScopeEventEmitter
}> = ({ ide, scopeStore, scopeEventEmitter, children }) => {
  const value = useMemo<IdeContextValue>(() => {
    return {
      ...ide,
      isReactIde,
      scopeStore,
      scopeEventEmitter,
    }
  }, [ide, scopeStore, scopeEventEmitter])

  return <IdeContext.Provider value={value}>{children}</IdeContext.Provider>
}

export function useIdeContext(): IdeContextValue {
  const context = useContext(IdeContext)

  if (!context) {
    throw new Error('useIdeContext is only available inside IdeProvider')
  }

  return context
}