1 files changed, 74 insertions, 0 deletions
diff --git a/components/Sidebar/Backlinks.tsx b/components/Sidebar/Backlinks.tsx
new file mode 100644
index 0000000..68ab551
--- /dev/null
+++ b/components/Sidebar/Backlinks.tsx
@@ -0,0 +1,74 @@
+import { LinksByNodeId, NodeByCite, NodeById } from '../../pages/index'
+
+import { GraphData, NodeObject, LinkObject } from 'force-graph'
+
+import { normalizeLinkEnds } from '../../pages/index'
+import { VStack, Box, Button, Heading, StackDivider } from '@chakra-ui/react'
+import React from 'react'
+import { ProcessedOrg } from '../../util/processOrg'
+
+export interface BacklinksProps {
+  previewNode: any
+  setPreviewNode: any
+  nodeById: NodeById
+  linksByNodeId: LinksByNodeId
+  nodeByCite: NodeByCite
+  setSidebarHighlightedNode: OrgRoamNode
+  openContextMenu: any
+}
+
+import { PreviewLink } from './Link'
+import { OrgRoamNode } from '../../api'
+
+export const Backlinks = (props: BacklinksProps) => {
+  const {
+    previewNode,
+    setPreviewNode,
+    setSidebarHighlightedNode,
+    nodeById,
+    linksByNodeId,
+    nodeByCite,
+    openContextMenu,
+  } = props
+  const links = linksByNodeId[previewNode?.id] ?? []
+
+  const backLinks = links
+    .filter((link: LinkObject) => {
+      const [source, target] = normalizeLinkEnds(link)
+      return source !== previewNode?.id
+    })
+    .map((l) => l.source)
+
+  return (
+    <Box>
+      <Heading pt={4}>{`Backlinks (${backLinks.length})`}</Heading>
+      <VStack
+        pt={2}
+        spacing={3}
+        alignItems="start"
+        divider={<StackDivider borderColor="gray.500" />}
+        align="stretch"
+        color="gray.800"
+      >
+        {previewNode?.id &&
+          backLinks.map((link) => {
+            const title = nodeById[link as string]?.title ?? ''
+            return (
+              <Box overflow="hidden" p={3} bg="gray.300" width="100%" key={link}>
+                <PreviewLink
+                  nodeByCite={nodeByCite}
+                  setSidebarHighlightedNode={setSidebarHighlightedNode}
+                  href={`id:${link as string}`}
+                  nodeById={nodeById}
+                  setPreviewNode={setPreviewNode}
+                  openContextMenu={openContextMenu}
+                >
+                  {nodeById[link as string]?.title}
+                </PreviewLink>
+              </Box>
+            )
+          })}
+      </VStack>
+    </Box>
+  )
+}