feat: balance campaign prices added to loan utility (#277)

@kiva/kv-components/utils/loanUtils.js

@@ -1,6 +1,16 @@
 export const ERL_COOKIE_NAME = 'kverlfivedollarnotes';
 export const TOP_UP_CAMPAIGN = 'TOPUP-VB-BALANCE-MPV1';
 export const BASE_CAMPAIGN = 'BASE-VB_BALANCE_MPV1';
+export const BALANCE_CAMPAIGN = 'REPAYMENT-NOTIFICATION_BALANCE_MPV1';
+export const NO_BALANCE_CAMPAIGN = 'REPAYMENT-NOTIFICATION_NO-BALANCE_MPV1';
+
+function balanceCampaignOptions(val) {
+	if (val > 20) return 25;
+	if (val > 15) return 20;
+	if (val > 10) return 15;
+	if (val > 5) return 10;
+	return 5;
+}
 
 /**
  * Checks if the unreserved amount is between 25 and 50
@@ -42,6 +52,11 @@ export function getLendCtaSelectedOption(
 	userBalance,
 	fiveDollarsSelected,
 ) {
+	// defaulted to $5 for fiveDollarsSelected flag even when users come from email with a different balance
+	if (enableFiveDollarsNotes && fiveDollarsSelected) {
+		return '5';
+	}
+
 	// Don't enable the campaign changes when the user balance is undefined (user not logged in)
 	if (enableFiveDollarsNotes && typeof userBalance !== 'undefined') {
 		let currentCampaign = getCookie?.(ERL_COOKIE_NAME);
@@ -56,33 +71,36 @@ export function getLendCtaSelectedOption(
 			// eslint-disable-next-line no-nested-ternary
 			currentCampaign = campaignToCheck.includes(TOP_UP_CAMPAIGN)
 				? TOP_UP_CAMPAIGN
-				: (campaignToCheck.includes(BASE_CAMPAIGN) ? BASE_CAMPAIGN : '');
+				: campaignToCheck.includes(BASE_CAMPAIGN) ? BASE_CAMPAIGN // eslint-disable-line no-nested-ternary
+					: campaignToCheck.includes(BALANCE_CAMPAIGN) ? BALANCE_CAMPAIGN // eslint-disable-line no-nested-ternary
+						: (campaignToCheck.includes(NO_BALANCE_CAMPAIGN) ? NO_BALANCE_CAMPAIGN : '');
 
 			if (currentCampaign && setCookie) {
 				setCookie(ERL_COOKIE_NAME, currentCampaign, { expires });
 			}
 		}
 
 		if (currentCampaign) {
+			let val = Math.floor(userBalance / 5) * 5;
+
 			// Base campaign gets largest increment of $5 under the user's balance up to $25 or the unreserved amount
 			if (currentCampaign === BASE_CAMPAIGN) {
-				let val = Math.floor(userBalance / 5) * 5;
-
 				// eslint-disable-next-line no-nested-ternary
 				val = val === 0 ? 5 : (val > 25 ? 25 : val);
 
 				return Number(val <= unreservedAmount ? val : unreservedAmount).toFixed();
 			}
 
-			// Top up campaign defaults to $5
+			if (currentCampaign === BALANCE_CAMPAIGN) {
+				val = balanceCampaignOptions(val);
+				return Number(val).toFixed();
+			}
+
+			// Top up and no balance campaigns defaults to $5
 			return Number(unreservedAmount > 5 ? 5 : unreservedAmount).toFixed();
 		}
 	}
 
-	if (enableFiveDollarsNotes && fiveDollarsSelected) {
-		return '5';
-	}
-
 	// Handle when $5 notes isn't enabled
 	if (isBetween25And50(unreservedAmount) || isLessThan25(unreservedAmount)) {
 		return Number(unreservedAmount).toFixed();