From 0bb78670594e33de3547b5cf5c83b29a7f23fd60 Mon Sep 17 00:00:00 2001
From: Tom Hacohen <tom@stosb.com>
Date: Thu, 6 Aug 2020 09:25:41 +0300
Subject: [PATCH] Collection: add a changelog history page.

---
 src/Collections/Collection.tsx              |  11 +-
 src/Collections/CollectionChangeEntries.tsx | 183 ++++++++++++++++++++
 2 files changed, 185 insertions(+), 9 deletions(-)
 create mode 100644 src/Collections/CollectionChangeEntries.tsx

diff --git a/src/Collections/Collection.tsx b/src/Collections/Collection.tsx
index 4c6eaca..d1d6513 100644
--- a/src/Collections/Collection.tsx
+++ b/src/Collections/Collection.tsx
@@ -11,9 +11,7 @@ import IconImport from "@material-ui/icons/ImportExport";
 import AppBarOverride from "../widgets/AppBarOverride";
 import Container from "../widgets/Container";
 
-/* FIXME:
-import CollectionEntries from "../components/CollectionEntries";
- */
+import CollectionChangeEntries from "./CollectionChangeEntries";
 import ImportDialog from "./ImportDialog";
 
 import { Link } from "react-router-dom";
@@ -75,13 +73,8 @@ class Collection extends React.Component<PropsType> {
           </IconButton>
         </AppBarOverride>
         <Container>
-          Change entries: TBD
+          <CollectionChangeEntries collection={this.props.collection} />
         </Container>
-        {/*
-        <Container>
-          <CollectionEntries collection={collection} entries={syncEntries} />
-        </Container>
-        */}
 
         <ImportDialog
           key={this.state.importDialogOpen.toString()}
diff --git a/src/Collections/CollectionChangeEntries.tsx b/src/Collections/CollectionChangeEntries.tsx
new file mode 100644
index 0000000..75c9c86
--- /dev/null
+++ b/src/Collections/CollectionChangeEntries.tsx
@@ -0,0 +1,183 @@
+// SPDX-FileCopyrightText: © 2017 EteSync Authors
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import * as React from "react";
+
+import moment from "moment";
+
+import * as Etebase from "etebase";
+
+import { AutoSizer, List as VirtualizedList } from "react-virtualized";
+
+import { List, ListItem } from "../widgets/List";
+import Dialog from "@material-ui/core/Dialog";
+import DialogTitle from "@material-ui/core/DialogTitle";
+import DialogContent from "@material-ui/core/DialogContent";
+import DialogActions from "@material-ui/core/DialogActions";
+import Button from "@material-ui/core/Button";
+import IconEdit from "@material-ui/icons/Edit";
+import IconDelete from "@material-ui/icons/Delete";
+import IconError from "@material-ui/icons/Error";
+
+import { useCredentials } from "../credentials";
+import { useItems } from "../etebase-helpers";
+import { TaskType, EventType, ContactType, parseString } from "../pim-types";
+import { CachedCollection } from "../Pim/helpers";
+import LoadingIndicator from "../widgets/LoadingIndicator";
+
+export interface CachedItem {
+  item: Etebase.CollectionItem;
+  metadata: Etebase.CollectionItemMetadata;
+  content: string;
+}
+
+async function decryptItems(items: Map<string, Map<string, Etebase.CollectionItem>>) {
+  const entries: Map<string, Map<string, CachedItem>> = new Map();
+  if (items) {
+    for (const [colUid, col] of items.entries()) {
+      const cur = new Map();
+      entries.set(colUid, cur);
+      for (const item of col.values()) {
+        cur.set(item.uid, {
+          item,
+          metadata: await item.getMeta(),
+          content: await item.getContent(Etebase.OutputFormat.String),
+        });
+      }
+    }
+  }
+
+  return entries;
+}
+
+interface PropsType {
+  collection: CachedCollection;
+}
+
+// FIXME: use the ones used by e.g. Contacts/Main so ew share the cache
+export default function CollectionChangeEntries(props: PropsType) {
+  const [entries, setEntries] = React.useState<Map<string, CachedItem>>();
+  const [dialog, setDialog] = React.useState<CachedItem>();
+  const etebase = useCredentials()!;
+
+  const { collection, metadata } = props.collection;
+  const colType = metadata.type;
+  const items = useItems(etebase, colType);
+
+  React.useEffect(() => {
+    if (items) {
+      decryptItems(items)
+        .then((entries) => setEntries(entries.get(collection.uid)));
+      // FIXME: handle failure to decrypt items
+    }
+  }, [items]);
+
+  if (!entries) {
+    return (
+      <LoadingIndicator />
+    );
+  }
+
+  const entriesList = Array.from(entries.values()).sort((a_, b_) => {
+    const a = a_.metadata.mtime ?? 0;
+    const b = b_.metadata.mtime ?? 0;
+    return a - b;
+  });
+
+  const rowRenderer = (params: { index: number, key: string, style: React.CSSProperties }) => {
+    const { key, index, style } = params;
+    const cacheItem = entriesList[entriesList.length - index - 1]!;
+    let comp;
+    try {
+      comp = parseString(cacheItem.content);
+    } catch (e) {
+      const icon = (<IconError style={{ color: "red" }} />);
+      return (
+        <ListItem
+          key={key}
+          style={style}
+          leftIcon={icon}
+          primaryText="Failed parsing item"
+          secondaryText="Unknown"
+          onClick={() => setDialog(cacheItem)}
+        />
+      );
+    }
+
+    let icon;
+    if (!cacheItem.item.isDeleted) {
+      icon = (<IconEdit style={{ color: "#16B14B" }} />);
+    } else {
+      icon = (<IconDelete style={{ color: "#F20C0C" }} />);
+    }
+
+    let name;
+    if (comp.name === "vcalendar") {
+      if (EventType.isEvent(comp)) {
+        const vevent = EventType.fromVCalendar(comp);
+        name = vevent.summary;
+      } else {
+        const vtodo = TaskType.fromVCalendar(comp);
+        name = vtodo.summary;
+      }
+    } else if (comp.name === "vcard") {
+      const vcard = new ContactType(comp);
+      name = vcard.fn;
+    } else {
+      name = "Error processing entry";
+    }
+
+    const mtime = (cacheItem.metadata.mtime) ? moment(cacheItem.metadata.mtime) : undefined;
+
+    return (
+      <ListItem
+        key={key}
+        style={style}
+        leftIcon={icon}
+        primaryText={name}
+        secondaryText={mtime && mtime.format("llll")}
+        onClick={() => setDialog(cacheItem)}
+      />
+    );
+  };
+
+  return (
+    <div>
+      <Dialog
+        open={dialog !== undefined}
+        onClose={() => setDialog(undefined)}
+      >
+        <DialogTitle>
+          Raw Content
+        </DialogTitle>
+        <DialogContent>
+          <div>Entry UID: <pre className="d-inline-block">{dialog?.item.uid}</pre></div>
+          <div>Content:
+            <pre>{dialog?.content}</pre>
+          </div>
+        </DialogContent>
+        <DialogActions>
+          <Button
+            color="primary"
+            onClick={() => setDialog(undefined)}
+          >
+            Close
+          </Button>
+        </DialogActions>
+      </Dialog>
+      <List style={{ height: "calc(100vh - 300px)" }}>
+        <AutoSizer>
+          {({ height, width }) => (
+            <VirtualizedList
+              width={width}
+              height={height}
+              rowCount={entriesList.length}
+              rowHeight={56}
+              rowRenderer={rowRenderer}
+            />
+          )}
+        </AutoSizer>
+      </List>
+    </div>
+  );
+}