Persist IOU data in Onyx

src/ONYXKEYS.js

@@ -61,5 +61,6 @@ export default {
         REPORT_ACTIONS: 'reportActions_',
         REPORT_DRAFT_COMMENT: 'reportDraftComment_',
         REPORT_USER_IS_TYPING: 'reportUserIsTyping_',
+        REPORT_IOUS: 'reportIOUs_',
     },
 };

src/libs/API.js

@@ -605,7 +605,6 @@ function SetNameValuePair(parameters) {
 }
 
 /**
- *
  * @param {Object} parameters
  * @param {String[]} data
  * @returns {Promise}
@@ -621,6 +620,17 @@ function Mobile_GetConstants(parameters) {
     return Network.post(commandName, finalParameters);
 }
 
+/**
+ * @param {Object} parameters
+ * @param {String} parameters.debtorEmail
+ * @returns {Promise}
+ */
+function GetIOUReport(parameters) {
+    const commandName = 'GetIOUReport';
+    requireParameters(['debtorEmail'], parameters, commandName);
+    return Network.post(commandName, parameters);
+}
+
 export {
     getAuthToken,
     Authenticate,
@@ -630,6 +640,7 @@ export {
     DeleteLogin,
     Get,
     GetAccountStatus,
+    GetIOUReport,
     GetRequestCountryCode,
     Graphite_Timer,
     Log,

src/libs/actions/Report.js

@@ -495,6 +495,84 @@ function fetchChatReports() {
         });
 }
 
+/**
+ * Get a simplified version of an IOU report
+ *
+ * @param {Object} reportData
+ * @param {Number} reportData.transactionID
+ * @param {Number} reportData.amount
+ * @param {String} reportData.currency
+ * @param {String} reportData.created
+ * @param {String} reportData.comment
+ * @param {Object[]} reportData.transactionList
+ * @param {String} reportData.ownerEmail
+ * @param {String} reportData.managerEmail
+ * @param {Number} reportData.reportID
+ * @returns {Object}
+ */
+function getSimplifiedIOUReport(reportData) {
+    const transactions = _.map(reportData.transactionList, transaction => ({
+        transactionID: transaction.transactionID,
+        amount: transaction.amount,
+        currency: transaction.currency,
+        created: transaction.created,
+        comment: transaction.comment,
+    }));
+
+    return {
+        reportID: reportData.reportID,
+        ownerEmail: reportData.ownerEmail,
+        managerEmail: reportData.managerEmail,
+        currency: reportData.currency,
+        transactions,
+    };
+}
+
+/**
+ * Fetches the updated data for an IOU Report and updates the IOU collection in Onyx
+ *
+ * @param {Object[]} reportHistory
+ */
+function updateIOUReportData(reportHistory) {
+    const containsIOUAction = _.any(reportHistory, action => action.actionName === 'IOU');
+
+    // If there aren't any IOU actions, we don't need to fetch any additional data
+    if (!containsIOUAction) {
+        return;
+    }
+
+    const otherParticipants = _.chain(reportHistory)
+        .pluck('actorEmail')
+        .unique()
+        .without(currentUserEmail)
+        .value();
+
+    // If we have more than one participant, this is not an IOU
+    if (otherParticipants.length > 1) {
+        return;
+    }
+
+    // Since the Chat and the IOU are different reports with different reportIDs, and GetIOUReport only returns the
+    // IOU's reportID, keep track of the IOU's reportID so we can use it to get the IOUReport data via `GetReportStuff`
+    let iouReportID = 0;
+    API.GetIOUReport({
+        debtorEmail: otherParticipants[0],
+    }).then((response) => {
+        iouReportID = response.reportID;
+
+        return API.Get({
+            returnValueList: 'reportStuff',
+            reportIDList: iouReportID,
+            shouldLoadOptionalKeys: true,
+            includePinnedReports: true,
+        });
+    }).then((response) => {
+        const iouReportData = response.reports[iouReportID];
+        Onyx.merge(`${ONYXKEYS.COLLECTION.REPORT_IOUS}${iouReportID}`,
+            getSimplifiedIOUReport(iouReportData));
+    });
+}
+
 /**
  * Get the actions of a report
  *
@@ -529,6 +607,8 @@ function fetchActions(reportID, offset) {
                 .max()
                 .value();
 
+            updateIOUReportData(indexedData);
+
             Onyx.merge(`${ONYXKEYS.COLLECTION.REPORT_ACTIONS}${reportID}`, indexedData);
             Onyx.merge(`${ONYXKEYS.COLLECTION.REPORT}${reportID}`, {maxSequenceNumber});
         });