[Wallet] Add balance and contact tracking (#4209)

### Description

The new wallet KPIs require a few analytics we weren't already tracking. This PR adds balance and contact imports tracking, which is the final addition to be able to calculate the KPIs listed [here](https://docs.google.com/document/d/1G_XGpggW6cTBENcvs4v6XpaZzkTpST2D0kh31V9OVtU/edit). 

Note that transaction size analytics will be calculated using eksportisto data

### Tested

Not tested, no logic change- just adding analytics

### Related issues

- Related to epics #4008 and #4004 
- Fee tracking to help identify the extent of #4010 

### Backwards compatibility

Yes

packages/mobile/src/analytics/constants.ts

@@ -261,6 +261,8 @@ export enum CustomEventNames {
   import_contacts = 'import_contacts',
   import_contact_error = 'import_contact_error',
   import_contacts_skip = 'import_contacts_skip',
+  fetched_contacts = 'fetched_contacts',
+  add_contact_match = 'add_contact_match',
 
   // Escrowed payments
   escrowed_payment_review = 'escrowed_payment_review',
@@ -293,7 +295,8 @@ export enum CustomEventNames {
   transaction_error = 'transaction_error',
   transaction_exception = 'transaction_exception',
 
-  // Fee errors
+  // Fee
+  fee_rendered = 'fee_rendered',
   estimate_fee_failed = 'estimate_fee_failed',
   fetch_tobin_tax_failed = 'fetch_tobin_tax_failed',
 
@@ -323,6 +326,8 @@ export type EventPropertyType = {
 export enum PropertyPathWhitelist {
   address = 'address',
   component = 'component',
+  contacts = 'contacts',
+  contactsMatched = 'contactsMatched',
   context = 'context',
   countryCode = 'countryCode',
   cta = 'cta',
@@ -335,6 +340,7 @@ export enum PropertyPathWhitelist {
   error = 'error',
   exchangeInputAmount = 'exchangeInputAmount',
   exchangeRate = 'exchangeRate',
+  fee = 'fee',
   feeType = 'feeType',
   fullName = 'fullName',
   gethOutcome = 'gethOutcome',

packages/mobile/src/identity/contactMapping.ts

@@ -88,6 +88,7 @@ function* doImportContacts(doMatchmaking: boolean) {
   yield put(updateImportContactsProgress(ImportContactsStatus.Importing))
 
   const contacts: MinimalContact[] = yield call(getAllContacts)
+  CeloAnalytics.track(CustomEventNames.fetched_contacts, { contacts: contacts.length })
   if (!contacts || !contacts.length) {
     Logger.warn(TAG, 'Empty contacts list. Skipping import.')
     return true

packages/mobile/src/identity/reducer.ts

@@ -1,5 +1,7 @@
 import dotProp from 'dot-prop-immutable'
 import { RehydrateAction } from 'redux-persist'
+import CeloAnalytics from 'src/analytics/CeloAnalytics'
+import { CustomEventNames } from 'src/analytics/constants'
 import { Actions, ActionTypes } from 'src/identity/actions'
 import { ContactMatches, ImportContactsStatus, VerificationStatus } from 'src/identity/types'
 import { AttestationCode } from 'src/identity/verification'
@@ -176,9 +178,13 @@ export const reducer = (
         askedContactsPermission: true,
       }
     case Actions.ADD_CONTACT_MATCHES:
+      const matchedContacts = { ...state.matchedContacts, ...action.matches }
+      CeloAnalytics.track(CustomEventNames.add_contact_match, {
+        contactsMatched: Object.keys(matchedContacts).length,
+      })
       return {
         ...state,
-        matchedContacts: { ...state.matchedContacts, ...action.matches },
+        matchedContacts,
       }
     case Actions.VALIDATE_RECIPIENT_ADDRESS:
       return {

packages/mobile/src/send/SendConfirmation.tsx

@@ -288,6 +288,7 @@ export class SendConfirmation extends React.Component<Props, State> {
       // so we adjust it here
       const securityFee = isInvite && fee ? fee.minus(inviteFee) : fee
 
+      CeloAnalytics.track(CustomEventNames.fee_rendered, { feeType: 'Security', fee: securityFee })
       const totalAmount = {
         value: amountWithFee,
         currencyCode: CURRENCIES[CURRENCY_ENUM.DOLLAR].code,

packages/mobile/src/tokens/saga.ts

@@ -73,7 +73,14 @@ export function tokenFetchFactory({ actionName, token, actionCreator, tag }: Tok
       const tokenContract = yield call(getTokenContract, token)
       const balanceInWei: BigNumber = yield call([tokenContract, tokenContract.balanceOf], account)
       const balance: BigNumber = yield call(convertFromContractDecimals, balanceInWei, token)
-      CeloAnalytics.track(CustomEventNames.fetch_balance)
+      CeloAnalytics.track(
+        CustomEventNames.fetch_balance,
+        token === CURRENCY_ENUM.DOLLAR
+          ? {
+              dollarBalance: balance,
+            }
+          : { goldBalance: balance }
+      )
       yield put(actionCreator(balance.toString()))
     } catch (error) {
       Logger.error(tag, 'Error fetching balance', error)