From 24442d524b3df42671f857b5f736c2c9872e01a5 Mon Sep 17 00:00:00 2001
From: Tsu-ba-me <ynho.li.aa.e@gmail.com>
Date: Mon, 28 Feb 2022 22:56:06 -0500
Subject: [PATCH] fix(striker-ui): add purge file confirm dialog

---
 striker-ui/components/ConfirmDialog.tsx      | 68 ++++++++++++++++++++
 striker-ui/components/Files/FileEditForm.tsx | 50 ++++++++++++--
 2 files changed, 112 insertions(+), 6 deletions(-)
 create mode 100644 striker-ui/components/ConfirmDialog.tsx

diff --git a/striker-ui/components/ConfirmDialog.tsx b/striker-ui/components/ConfirmDialog.tsx
new file mode 100644
index 00000000..2c365eaf
--- /dev/null
+++ b/striker-ui/components/ConfirmDialog.tsx
@@ -0,0 +1,68 @@
+import { MouseEventHandler } from 'react';
+import { Box, ButtonProps, Dialog, DialogProps } from '@mui/material';
+
+import ContainedButton from './ContainedButton';
+import { Panel, PanelHeader } from './Panels';
+import { BodyText, HeaderText } from './Text';
+
+type ConfirmDialogProps = {
+  actionCancelText?: string;
+  actionProceedText: string;
+  contentText: string;
+  dialogProps: DialogProps;
+  onCancel: MouseEventHandler<HTMLButtonElement>;
+  onProceed: MouseEventHandler<HTMLButtonElement>;
+  proceedButtonProps?: ButtonProps;
+  titleText: string;
+};
+
+const CONFIRM_DIALOG_DEFAULT_PROPS = {
+  actionCancelText: 'Cancel',
+  proceedButtonProps: { sx: undefined },
+};
+
+const ConfirmDialog = (
+  {
+    actionCancelText,
+    actionProceedText,
+    contentText,
+    dialogProps: { open },
+    onCancel,
+    onProceed,
+    proceedButtonProps,
+    titleText,
+  }: ConfirmDialogProps = CONFIRM_DIALOG_DEFAULT_PROPS as ConfirmDialogProps,
+): JSX.Element => {
+  const { sx: proceedButtonSx } =
+    proceedButtonProps ?? CONFIRM_DIALOG_DEFAULT_PROPS.proceedButtonProps;
+
+  return (
+    <Dialog {...{ open }} PaperComponent={Panel}>
+      <PanelHeader>
+        <HeaderText text={titleText} />
+      </PanelHeader>
+      <BodyText sx={{ marginBottom: '1em' }} text={contentText} />
+      <Box
+        sx={{
+          display: 'flex',
+          flexDirection: 'row',
+          justifyContent: 'flex-end',
+          width: '100%',
+
+          '& > :not(:first-child)': {
+            marginLeft: '.5em',
+          },
+        }}
+      >
+        <ContainedButton onClick={onCancel}>{actionCancelText}</ContainedButton>
+        <ContainedButton sx={proceedButtonSx} onClick={onProceed}>
+          {actionProceedText}
+        </ContainedButton>
+      </Box>
+    </Dialog>
+  );
+};
+
+ConfirmDialog.defaultProps = CONFIRM_DIALOG_DEFAULT_PROPS;
+
+export default ConfirmDialog;
diff --git a/striker-ui/components/Files/FileEditForm.tsx b/striker-ui/components/Files/FileEditForm.tsx
index 5dbd4bd1..c80e5761 100644
--- a/striker-ui/components/Files/FileEditForm.tsx
+++ b/striker-ui/components/Files/FileEditForm.tsx
@@ -9,6 +9,7 @@ import { Box, Checkbox, checkboxClasses } from '@mui/material';
 import API_BASE_URL from '../../lib/consts/API_BASE_URL';
 import { GREY, RED, TEXT } from '../../lib/consts/DEFAULT_THEME';
 
+import ConfirmDialog from '../ConfirmDialog';
 import ContainedButton from '../ContainedButton';
 import FileInfo from './FileInfo';
 import Spinner from '../Spinner';
@@ -29,6 +30,16 @@ const FileEditForm = ({ filesOverview }: FileEditProps): JSX.Element => {
   const [filesToEdit, setFilesToEdit] = useState<FileToEdit[]>([]);
   const [isLoadingFilesToEdit, setIsLoadingFilesToEdit] =
     useState<boolean>(false);
+  const [isOpenPurgeConfirmDialog, setIsOpenConfirmPurgeDialog] =
+    useState<boolean>(false);
+  const [selectedFilesCount, setSelectedFilesCount] = useState<number>(0);
+
+  const purgeButtonStyleOverride = {
+    backgroundColor: RED,
+    color: TEXT,
+
+    '&:hover': { backgroundColor: RED },
+  };
 
   const generateFileInfoChangeHandler =
     (fileIndex: number): FileInfoChangeHandler =>
@@ -70,6 +81,8 @@ const FileEditForm = ({ filesOverview }: FileEditProps): JSX.Element => {
   };
 
   const purgeFiles: MouseEventHandler<HTMLButtonElement> = () => {
+    setIsOpenConfirmPurgeDialog(false);
+
     filesToEdit
       .filter(({ isSelected }) => isSelected)
       .forEach(({ fileUUID }) => {
@@ -77,6 +90,26 @@ const FileEditForm = ({ filesOverview }: FileEditProps): JSX.Element => {
       });
   };
 
+  const cancelPurge: MouseEventHandler<HTMLButtonElement> = () => {
+    setIsOpenConfirmPurgeDialog(false);
+  };
+
+  const confirmPurge: MouseEventHandler<HTMLButtonElement> = () => {
+    // We need this local variable because setState functions are async; the
+    // changes won't reflect until the next render cycle.
+    // In this case, the user would have to click on the purge button twice to
+    // trigger the confirmation dialog without using this local variable.
+    const localSelectedFilesCount = filesToEdit.filter(
+      ({ isSelected }) => isSelected,
+    ).length;
+
+    setSelectedFilesCount(localSelectedFilesCount);
+
+    if (localSelectedFilesCount > 0) {
+      setIsOpenConfirmPurgeDialog(true);
+    }
+  };
+
   useEffect(() => {
     setIsLoadingFilesToEdit(true);
 
@@ -182,12 +215,8 @@ const FileEditForm = ({ filesOverview }: FileEditProps): JSX.Element => {
                 }}
               >
                 <ContainedButton
-                  onClick={purgeFiles}
-                  sx={{
-                    backgroundColor: RED,
-                    color: TEXT,
-                    '&:hover': { backgroundColor: RED },
-                  }}
+                  onClick={confirmPurge}
+                  sx={purgeButtonStyleOverride}
                 >
                   Purge
                 </ContainedButton>
@@ -195,6 +224,15 @@ const FileEditForm = ({ filesOverview }: FileEditProps): JSX.Element => {
               </Box>
             )}
           </Box>
+          <ConfirmDialog
+            actionProceedText="Purge"
+            contentText={`${selectedFilesCount} files will be removed from the system. You cannot undo this purge.`}
+            dialogProps={{ open: isOpenPurgeConfirmDialog }}
+            onCancel={cancelPurge}
+            onProceed={purgeFiles}
+            proceedButtonProps={{ sx: purgeButtonStyleOverride }}
+            titleText={`Are you sure you want to purge ${selectedFilesCount} selected files? `}
+          />
         </form>
       )}
     </>