From 001bdb01d048f4b8df8019092061a5fb4e0faa7a Mon Sep 17 00:00:00 2001
From: Nelson Pang <nelsoncpang@gmail.com>
Date: Fri, 6 Dec 2024 16:51:38 -0800
Subject: [PATCH] created an modal that gives options to confirming leaving the
 page or cancel after making an edit to the FAQ in admin mode

---
 .../src/components/Faq/FaqConfirmDialog.jsx   | 82 +++++++++++++++++++
 client/src/components/Faq/FaqView.jsx         | 44 +++++++++-
 .../ProjectWizard/TdmCalculationWizard.jsx    |  2 -
 3 files changed, 125 insertions(+), 3 deletions(-)
 create mode 100644 client/src/components/Faq/FaqConfirmDialog.jsx

diff --git a/client/src/components/Faq/FaqConfirmDialog.jsx b/client/src/components/Faq/FaqConfirmDialog.jsx
new file mode 100644
index 00000000..820d85ce
--- /dev/null
+++ b/client/src/components/Faq/FaqConfirmDialog.jsx
@@ -0,0 +1,82 @@
+import React from "react";
+import PropTypes from "prop-types";
+import ModalDialog from "../UI/AriaModal/ModalDialog";
+import Button from "../Button/Button";
+import { createUseStyles } from "react-jss";
+import { MdWarning } from "react-icons/md";
+
+const useStyles = createUseStyles({
+  title: {
+    textAlign: "center"
+  },
+  warningWrapper: {
+    color: "#B64E38",
+    display: "flex",
+    alignItems: "center",
+    justifyContent: "center"
+  },
+  warningMessage: {
+    verticalAlign: "middle",
+    display: "flex",
+    alignItems: "center",
+    justifyContent: "center",
+    marginBottom: "1em"
+  },
+  modalActions: {
+    display: "flex",
+    justifyContent: "center"
+  },
+  proceedButton: {
+    color: "white",
+    fontWeight: "bold"
+  }
+});
+
+const FaqConfirmDialog = ({ blocker }) => {
+  const classes = useStyles();
+  return (
+    <ModalDialog
+      mounted={blocker.state === "blocked"}
+      onClose={blocker.reset}
+      showCloseBox={false}
+    >
+      <div className={classes.warningWrapper}>
+        <MdWarning alt="Warning" size={70} />
+      </div>
+      <h2 className={classes.title}>
+        <strong>Unsaved changes will be lost</strong>
+      </h2>
+      <p className={classes.warningMessage}>
+        <span>
+          &nbsp; Leaving this page will permanently delete any unsaved changes
+          to the FAQ.
+        </span>
+      </p>
+      <div className={classes.modalActions}>
+        <Button
+          color="colorCancel"
+          variant="outlined"
+          id="modalCancel"
+          data-testid="transitionCancel"
+          onClick={() => blocker.reset()}
+        >
+          <p style={{ fontWeight: "bold" }}>Cancel</p>
+        </Button>
+        <Button
+          color="colorError"
+          id="modalProceed"
+          data-testid="transitionProceed"
+          onClick={() => blocker.proceed()}
+        >
+          <p className={classes.proceedButton}>Proceed</p>
+        </Button>
+      </div>
+    </ModalDialog>
+  );
+};
+
+FaqConfirmDialog.propTypes = {
+  blocker: PropTypes.object.isRequired
+};
+
+export default FaqConfirmDialog;
diff --git a/client/src/components/Faq/FaqView.jsx b/client/src/components/Faq/FaqView.jsx
index 053f8373..022a1978 100644
--- a/client/src/components/Faq/FaqView.jsx
+++ b/client/src/components/Faq/FaqView.jsx
@@ -10,6 +10,8 @@ import AddNewCategoryButton from "../Button/AddNewCategory";
 import { createUseStyles } from "react-jss";
 import DeleteFaqModal from "./DeleteFaqModal";
 import SaveConfirmationModal from "./SaveConfirmationModal";
+import FaqConfirmDialog from "./FaqConfirmDialog";
+import { matchPath, unstable_useBlocker as useBlocker } from "react-router-dom";
 
 const useStyles = createUseStyles(theme => ({
   headerContainer: {
@@ -35,6 +37,7 @@ const FaqView = () => {
   const [highestFaqId, setHighestFaqId] = useState(0);
   const [highestCategoryId, setHighestCategoryId] = useState(0);
   const [expanded, setExpanded] = useState(false);
+  const [formHasSaved, setFormHasSaved] = useState(false);
   const [admin, setAdmin] = useState(false);
   const [categoryToDelete, setCategoryToDelete] = useState(null);
   const [faqToDelete, setFaqToDelete] = useState(null);
@@ -47,6 +50,36 @@ const FaqView = () => {
     fetchFaqData();
   }, []);
 
+  const calculationPath = "/faqs";
+
+  const shouldBlock = React.useCallback(
+    ({ currentLocation, nextLocation }) => {
+      const isSamePage = (currentLocation, nextLocation) => {
+        const currentMatch = matchPath(
+          {
+            path: calculationPath,
+            exact: true
+          },
+          currentLocation.pathname
+        );
+        const nextMatch = matchPath(
+          {
+            path: calculationPath,
+            exact: true
+          },
+          nextLocation.pathname
+        );
+
+        return currentMatch && nextMatch;
+      };
+
+      return formHasSaved && !isSamePage(currentLocation, nextLocation);
+    },
+    [formHasSaved]
+  );
+
+  const blocker = useBlocker(shouldBlock);
+
   const handleDragEnd = result => {
     const { type, destination, source } = result;
 
@@ -161,12 +194,14 @@ const FaqView = () => {
     };
     setHighestCategoryId(updatedHighestCategoryId);
     setFaqCategoryList(prevState => [...prevState, newCategory]);
+    setFormHasSaved(true);
   };
 
   const onDeleteCategory = categoryId => {
     setFaqCategoryList(prevState =>
       prevState.filter(category => category.id !== categoryId)
     );
+    setFormHasSaved(true);
   };
 
   const handleAddFAQ = (category, question, answer) => {
@@ -198,6 +233,7 @@ const FaqView = () => {
         return category;
       })
     );
+    setFormHasSaved(true);
   };
 
   const handleEditFAQ = (categoryId, faqId, question, answer) => {
@@ -224,6 +260,7 @@ const FaqView = () => {
         return category;
       })
     );
+    setFormHasSaved(true);
   };
 
   const handleEditCategory = (category, name) => {
@@ -240,6 +277,7 @@ const FaqView = () => {
           return cat;
         })
     );
+    setFormHasSaved(true);
   };
 
   const onDeleteFAQ = (categoryId, faqId) => {
@@ -256,6 +294,7 @@ const FaqView = () => {
         return category;
       })
     );
+    setFormHasSaved(true);
   };
 
   const expandFaq = faq => {
@@ -312,7 +351,7 @@ const FaqView = () => {
     // Submit data and set admin to false
     submitFaqData();
     setAdmin(false);
-
+    setFormHasSaved(false);
     // Close the save confirmation modal
     closeSaveConfirmationModal();
   };
@@ -320,12 +359,14 @@ const FaqView = () => {
   const handleDeleteCategory = categoryId => {
     setCategoryToDelete(categoryId);
     setIsDeleteConfirmationModalOpen(true);
+    setFormHasSaved(true);
   };
 
   const handleDeleteFAQ = (categoryId, faqId) => {
     setCategoryToDelete(categoryId);
     setFaqToDelete(faqId);
     setIsDeleteConfirmationModalOpen(true);
+    setFormHasSaved(true);
   };
 
   const closeModal = () => {
@@ -405,6 +446,7 @@ const FaqView = () => {
         onClose={closeSaveConfirmationModal}
         onYes={handleSaveConfirmationYes}
       />
+      {blocker ? <FaqConfirmDialog blocker={blocker} /> : null}
     </ContentContainer>
   );
 };
diff --git a/client/src/components/ProjectWizard/TdmCalculationWizard.jsx b/client/src/components/ProjectWizard/TdmCalculationWizard.jsx
index 8922b0a2..6175f248 100644
--- a/client/src/components/ProjectWizard/TdmCalculationWizard.jsx
+++ b/client/src/components/ProjectWizard/TdmCalculationWizard.jsx
@@ -96,7 +96,6 @@ const TdmCalculationWizard = props => {
           },
           nextLocation.pathname
         );
-
         return (
           currentMatch &&
           nextMatch &&
@@ -104,7 +103,6 @@ const TdmCalculationWizard = props => {
             !projectId)
         );
       };
-
       return formIsDirty && !isSameProject(currentLocation, nextLocation);
     },
     [formIsDirty, projectId]