From 01c4c49b7af47bd2bc18a20fa751b084889fe7dc Mon Sep 17 00:00:00 2001
From: Kai Vandivier <kpvandivier@gmail.com>
Date: Thu, 7 Oct 2021 13:51:18 +0200
Subject: [PATCH] fix(offline): remove offlineInterface.init() functionality

---
 .../lib/__tests__/offline-provider.test.tsx   | 58 +++++--------------
 .../offline/src/lib/offline-interface.tsx     | 25 --------
 services/offline/src/lib/offline-provider.tsx | 10 ----
 services/offline/src/types.ts                 |  5 --
 services/offline/src/utils/test-mocks.ts      |  1 -
 5 files changed, 15 insertions(+), 84 deletions(-)

diff --git a/services/offline/src/lib/__tests__/offline-provider.test.tsx b/services/offline/src/lib/__tests__/offline-provider.test.tsx
index a1c8d286..5de38277 100644
--- a/services/offline/src/lib/__tests__/offline-provider.test.tsx
+++ b/services/offline/src/lib/__tests__/offline-provider.test.tsx
@@ -1,4 +1,3 @@
-import { AlertsProvider } from '@dhis2/app-service-alerts'
 import { render, screen, waitFor } from '@testing-library/react'
 import React from 'react'
 import { mockOfflineInterface } from '../../utils/test-mocks'
@@ -27,31 +26,14 @@ afterEach(() => {
 describe('Testing offline provider', () => {
     it('Should render without failing', () => {
         render(
-            <AlertsProvider>
-                <OfflineProvider offlineInterface={mockOfflineInterface}>
-                    <div data-testid="test-div" />
-                </OfflineProvider>
-            </AlertsProvider>
+            <OfflineProvider offlineInterface={mockOfflineInterface}>
+                <div data-testid="test-div" />
+            </OfflineProvider>
         )
 
         expect(screen.getByTestId('test-div')).toBeInTheDocument()
     })
 
-    it('Should initialize the offline interface with an update prompt', () => {
-        render(
-            <AlertsProvider>
-                <OfflineProvider offlineInterface={mockOfflineInterface} />
-            </AlertsProvider>
-        )
-
-        expect(mockOfflineInterface.init).toHaveBeenCalledTimes(1)
-
-        // Expect to have been called with a 'promptUpdate' function
-        const arg = mockOfflineInterface.init.mock.calls[0][0]
-        expect(arg).toHaveProperty('promptUpdate')
-        expect(typeof arg['promptUpdate']).toBe('function')
-    })
-
     it('Should sync cached sections with indexedDB', async () => {
         const testOfflineInterface = {
             ...mockOfflineInterface,
@@ -71,11 +53,9 @@ describe('Testing offline provider', () => {
         }
 
         render(
-            <AlertsProvider>
-                <OfflineProvider offlineInterface={testOfflineInterface}>
-                    <CachedSections />
-                </OfflineProvider>
-            </AlertsProvider>
+            <OfflineProvider offlineInterface={testOfflineInterface}>
+                <CachedSections />
+            </OfflineProvider>
         )
 
         const { getByTestId } = screen
@@ -102,11 +82,9 @@ describe('Testing offline provider', () => {
         }
 
         render(
-            <AlertsProvider>
-                <OfflineProvider offlineInterface={mockOfflineInterface}>
-                    <TestConsumer />
-                </OfflineProvider>
-            </AlertsProvider>
+            <OfflineProvider offlineInterface={mockOfflineInterface}>
+                <TestConsumer />
+            </OfflineProvider>
         )
 
         expect(screen.getByTestId('test-div')).toBeInTheDocument()
@@ -114,11 +92,9 @@ describe('Testing offline provider', () => {
 
     it('Should render without failing when no offlineInterface is provided', () => {
         render(
-            <AlertsProvider>
-                <OfflineProvider>
-                    <div data-testid="test-div" />
-                </OfflineProvider>
-            </AlertsProvider>
+            <OfflineProvider>
+                <div data-testid="test-div" />
+            </OfflineProvider>
         )
         expect(screen.getByTestId('test-div')).toBeInTheDocument()
     })
@@ -129,15 +105,11 @@ describe('Testing offline provider', () => {
             pwaEnabled: false,
         }
         render(
-            <AlertsProvider>
-                <OfflineProvider offlineInterface={testOfflineInterface}>
-                    <div data-testid="test-div" />
-                </OfflineProvider>
-            </AlertsProvider>
+            <OfflineProvider offlineInterface={testOfflineInterface}>
+                <div data-testid="test-div" />
+            </OfflineProvider>
         )
 
-        // Init should still be called - see comments in offline-provider.js
-        expect(testOfflineInterface.init).toHaveBeenCalled()
         expect(screen.getByTestId('test-div')).toBeInTheDocument()
     })
 })
diff --git a/services/offline/src/lib/offline-interface.tsx b/services/offline/src/lib/offline-interface.tsx
index 92e7a1df..de1176b2 100644
--- a/services/offline/src/lib/offline-interface.tsx
+++ b/services/offline/src/lib/offline-interface.tsx
@@ -1,4 +1,3 @@
-import { useAlert } from '@dhis2/app-service-alerts'
 import PropTypes from 'prop-types'
 import React, { createContext, useContext } from 'react'
 import { OfflineInterface } from '../types'
@@ -6,7 +5,6 @@ import { OfflineInterface } from '../types'
 // This is to prevent 'offlineInterface could be null' type-checking errors
 const noopOfflineInterface: OfflineInterface = {
     pwaEnabled: false,
-    init: () => () => null,
     startRecording: async () => undefined,
     getCachedSections: async () => [],
     removeSection: async () => false,
@@ -21,16 +19,6 @@ interface OfflineInterfaceProviderInput {
     children: React.ReactNode
 }
 
-interface AlertAction {
-    label: string
-    onClick: () => void
-}
-
-interface PromptUpdateAlertOptions {
-    message: string
-    actions: AlertAction[]
-}
-
 /**
  * Receives an OfflineInterface instance as a prop (presumably from the app
  * adapter) and provides it as context for other offline tools.
@@ -43,19 +31,6 @@ export function OfflineInterfaceProvider({
     offlineInterface,
     children,
 }: OfflineInterfaceProviderInput): JSX.Element {
-    const { show } = useAlert(
-        ({ message }: PromptUpdateAlertOptions) => message,
-        ({ actions }: PromptUpdateAlertOptions) => ({
-            actions,
-            permanent: true,
-        })
-    )
-
-    React.useEffect(() => {
-        // Init returns a tear-down function
-        return offlineInterface.init({ promptUpdate: show })
-    }, []) // eslint-disable-line react-hooks/exhaustive-deps
-
     return (
         <OfflineInterfaceContext.Provider value={offlineInterface}>
             {children}
diff --git a/services/offline/src/lib/offline-provider.tsx b/services/offline/src/lib/offline-provider.tsx
index 7b3d9bbb..0c7f6323 100644
--- a/services/offline/src/lib/offline-provider.tsx
+++ b/services/offline/src/lib/offline-provider.tsx
@@ -20,15 +20,6 @@ export function OfflineProvider({
         return <>{children}</>
     }
 
-    // If PWA is not enabled, just init interface to make sure new SW gets
-    // activated with code that unregisters SW. Not technically necessary if a
-    // killswitch SW takes over, but the killswitch may not always be in use.
-    // Then, skip adding any context
-    if (!offlineInterface.pwaEnabled) {
-        offlineInterface.init({ promptUpdate: ({ onConfirm }) => onConfirm() })
-        return <>{children}</>
-    }
-
     return (
         <OfflineInterfaceProvider offlineInterface={offlineInterface}>
             <CacheableSectionProvider>{children}</CacheableSectionProvider>
@@ -39,7 +30,6 @@ export function OfflineProvider({
 OfflineProvider.propTypes = {
     children: PropTypes.node,
     offlineInterface: PropTypes.shape({
-        init: PropTypes.func,
         pwaEnabled: PropTypes.bool,
     }),
 }
diff --git a/services/offline/src/types.ts b/services/offline/src/types.ts
index 92a3a010..48025ba3 100644
--- a/services/offline/src/types.ts
+++ b/services/offline/src/types.ts
@@ -35,10 +35,6 @@ export interface GlobalStateStore {
 
 // Offline Interface types
 
-interface PromptUpdate {
-    (params: { message: string; action: string; onConfirm: () => void }): void
-}
-
 interface StartRecording {
     (params: {
         sectionId: string
@@ -58,7 +54,6 @@ export interface IndexedDBCachedSection {
 
 export interface OfflineInterface {
     readonly pwaEnabled: boolean
-    init: (params: { promptUpdate: PromptUpdate }) => () => void
     startRecording: StartRecording
     getCachedSections: () => Promise<IndexedDBCachedSection[]>
     removeSection: (id: string) => Promise<boolean>
diff --git a/services/offline/src/utils/test-mocks.ts b/services/offline/src/utils/test-mocks.ts
index eb575bb0..f0a265de 100644
--- a/services/offline/src/utils/test-mocks.ts
+++ b/services/offline/src/utils/test-mocks.ts
@@ -30,7 +30,6 @@ export const failedMessageRecordingMock = jest
 
 export const mockOfflineInterface = {
     pwaEnabled: true,
-    init: jest.fn(),
     startRecording: successfulRecordingMock,
     getCachedSections: jest.fn().mockResolvedValue([]),
     removeSection: jest.fn().mockResolvedValue(true),