Move Notification Logic from Discussion Store to Firebase Functions

functions/src/Utils/db.utils.test.ts

@@ -0,0 +1,37 @@
+import { getDiscussionCollectionName, randomID } from './db.utils'
+
+describe('getDiscussionCollectionName', () => {
+  it('should return "questions" when sourceType is "question"', () => {
+    const result = getDiscussionCollectionName('question')
+    expect(result).toBe('questions')
+  })
+
+  it('should return "howtos" when sourceType is "howto"', () => {
+    const result = getDiscussionCollectionName('howto')
+    expect(result).toBe('howtos')
+  })
+
+  it('should return null when sourceType is unrecognized', () => {
+    const result = getDiscussionCollectionName('unknown')
+    expect(result).toBe(null)
+  })
+  it('should return null when sourceType is an empty string', () => {
+    const result = getDiscussionCollectionName('')
+    expect(result).toBeNull()
+  })
+
+  it('should return "research" when sourceType is "researchUpdate"', () => {
+    const result = getDiscussionCollectionName('researchUpdate')
+    expect(result).toBe('research')
+  })
+})
+
+describe('randomID', () => {
+  // generates a string of length 20
+  it('should generate a string of length 20 and include only alphanumeric characters', () => {
+    const id = randomID()
+    const alphanumericRegex = /^[a-zA-Z0-9]+$/
+    expect(id).toHaveLength(20)
+    expect(alphanumericRegex.test(id)).toBe(true)
+  })
+})

functions/src/Utils/db.utils.ts

@@ -0,0 +1,31 @@
+export type DiscussionEndpoints = 'howtos' | 'research' | 'questions'
+
+/**
+ *  Function used to determine the discussion collection name based on the source type.
+ */
+export const getDiscussionCollectionName = (
+  sourceType: string,
+): DiscussionEndpoints | null => {
+  switch (sourceType) {
+    case 'question':
+      return 'questions'
+    case 'howto':
+      return 'howtos'
+    case 'researchUpdate':
+      return 'research'
+    default:
+      return null
+  }
+}
+
+/**
+ *  Function used to generate random ID in same manner as firestore
+ */
+export const randomID = () => {
+  const chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'
+  let autoId = ''
+  for (let i = 0; i < 20; i++) {
+    autoId += chars.charAt(Math.floor(Math.random() * chars.length))
+  }
+  return autoId
+}

functions/src/Utils/index.ts

@@ -1,3 +1,4 @@
 export * from './auth.utils'
 export * from './data.utils'
 export * from './file.utils'
+export * from './db.utils'