feat(lib): relation component (#387)

* Fix relations view

* extended relation component

* added backend fields

* bidirectional direction

* fix linting

backend/directus-config/development/snapshot/fields/relations/direction.json

@@ -0,0 +1,56 @@
+{
+  "collection": "relations",
+  "field": "direction",
+  "type": "string",
+  "meta": {
+    "collection": "relations",
+    "conditions": null,
+    "display": null,
+    "display_options": null,
+    "field": "direction",
+    "group": null,
+    "hidden": false,
+    "interface": "select-dropdown",
+    "note": null,
+    "options": {
+      "choices": [
+        {
+          "icon": "arrow_forward",
+          "text": "outgoing",
+          "value": "outgoing"
+        },
+        {
+          "icon": "arrow_back",
+          "text": "ingoing",
+          "value": "ingoing"
+        }
+      ]
+    },
+    "readonly": false,
+    "required": false,
+    "sort": 4,
+    "special": null,
+    "translations": null,
+    "validation": null,
+    "validation_message": null,
+    "width": "full"
+  },
+  "schema": {
+    "name": "direction",
+    "table": "relations",
+    "data_type": "character varying",
+    "default_value": "outgoing",
+    "max_length": 255,
+    "numeric_precision": null,
+    "numeric_scale": null,
+    "is_nullable": true,
+    "is_unique": false,
+    "is_indexed": false,
+    "is_primary_key": false,
+    "is_generated": false,
+    "generation_expression": null,
+    "has_auto_increment": false,
+    "foreign_key_table": null,
+    "foreign_key_column": null
+  }
+}

backend/directus-config/development/snapshot/fields/relations/heading.json

@@ -0,0 +1,43 @@
+{
+  "collection": "relations",
+  "field": "heading",
+  "type": "string",
+  "meta": {
+    "collection": "relations",
+    "conditions": null,
+    "display": null,
+    "display_options": null,
+    "field": "heading",
+    "group": null,
+    "hidden": false,
+    "interface": "input",
+    "note": null,
+    "options": null,
+    "readonly": false,
+    "required": false,
+    "sort": 3,
+    "special": null,
+    "translations": null,
+    "validation": null,
+    "validation_message": null,
+    "width": "full"
+  },
+  "schema": {
+    "name": "heading",
+    "table": "relations",
+    "data_type": "character varying",
+    "default_value": "Relations",
+    "max_length": 255,
+    "numeric_precision": null,
+    "numeric_scale": null,
+    "is_nullable": true,
+    "is_unique": false,
+    "is_indexed": false,
+    "is_primary_key": false,
+    "is_generated": false,
+    "generation_expression": null,
+    "has_auto_increment": false,
+    "foreign_key_table": null,
+    "foreign_key_column": null
+  }
+}

backend/directus-config/development/snapshot/fields/relations/hideWhenEmpty.json

@@ -0,0 +1,45 @@
+{
+  "collection": "relations",
+  "field": "hideWhenEmpty",
+  "type": "boolean",
+  "meta": {
+    "collection": "relations",
+    "conditions": null,
+    "display": null,
+    "display_options": null,
+    "field": "hideWhenEmpty",
+    "group": null,
+    "hidden": false,
+    "interface": "boolean",
+    "note": null,
+    "options": null,
+    "readonly": false,
+    "required": false,
+    "sort": 5,
+    "special": [
+      "cast-boolean"
+    ],
+    "translations": null,
+    "validation": null,
+    "validation_message": null,
+    "width": "full"
+  },
+  "schema": {
+    "name": "hideWhenEmpty",
+    "table": "relations",
+    "data_type": "boolean",
+    "default_value": true,
+    "max_length": null,
+    "numeric_precision": null,
+    "numeric_scale": null,
+    "is_nullable": true,
+    "is_unique": false,
+    "is_indexed": false,
+    "is_primary_key": false,
+    "is_generated": false,
+    "generation_expression": null,
+    "has_auto_increment": false,
+    "foreign_key_table": null,
+    "foreign_key_column": null
+  }
+}

lib/src/Components/Profile/Subcomponents/RelationsView.tsx

@@ -1,3 +1,6 @@
+import { Link } from 'react-router-dom'
+
+import { useAppState } from '#components/AppShell/hooks/useAppState'
 import { useItems } from '#components/Map/hooks/useItems'
 
 import type { Item } from '#types/Item'
@@ -5,27 +8,79 @@ import type { Item } from '#types/Item'
 interface Props {
   item: Item
   relation: string
+  heading: string
+  direction?: 'outgoing' | 'ingoing' | 'bidirectional'
+  hideWhenEmpty?: boolean
 }
 
-export const RelationsView = ({ item, relation }: Props) => {
+export const RelationsView = ({
+  item,
+  relation,
+  heading,
+  direction = 'outgoing',
+  hideWhenEmpty = true,
+}: Props) => {
   const items = useItems()
+  const appState = useAppState()
 
   if (!item.relations) return
 
   const relationsOfRightType = item.relations.filter((r) => r.type === relation)
 
-  const relatedItems = items.filter((i) => relationsOfRightType.some((r) => r.id === i.id))
+  const relatedItems = (() => {
+    const outgoingItems = items.filter((i) =>
+      relationsOfRightType.some((r) => r.related_items_id === i.id),
+    )
+
+    const ingoingItems = items.filter((i) =>
+      i.relations?.some((r) => r.type === relation && r.related_items_id === item.id),
+    )
+
+    switch (direction) {
+      case 'outgoing':
+        return outgoingItems
+      case 'ingoing':
+        return ingoingItems
+      case 'bidirectional': {
+        // Combine both arrays and remove duplicates
+        const allItems = [...outgoingItems, ...ingoingItems]
+        return allItems.filter(
+          (item, index, self) => index === self.findIndex((i) => i.id === item.id),
+        )
+      }
+      default:
+        return outgoingItems
+    }
+  })()
 
   const hasRelatedItems = relatedItems.length > 0
 
+  if (hideWhenEmpty && !hasRelatedItems) {
+    return null
+  }
+
   return (
-    <div>
+    <div className='tw:my-10 tw:mt-2 tw:px-6'>
-      <h2>{relation}</h2>
+      <h2 className='tw:text-lg tw:font-bold'>{heading}</h2>
       {hasRelatedItems ? (
         <ul>
           {relatedItems.map((relatedItem) => (
             <li key={relatedItem.id}>
-              <a href={`/item/${relatedItem.id}`}>{relatedItem.name}</a>
+              <Link to={relatedItem.id} className='tw:flex tw:flex-row'>
+                <div>
+                  {relatedItem.image ? (
+                    <img
+                      className='tw:size-10 tw:rounded-full'
+                      src={appState.assetsApi.url + '/' + relatedItem.image}
+                    />
+                  ) : (
+                    <div className='tw:size-10 tw:rounded-full tw:bg-gray-200' />
+                  )}
+                </div>
+                <div className='tw:ml-2 tw:flex tw:items-center tw:min-h-[2.5rem]'>
+                  <div>{relatedItem.name}</div>
+                </div>
+              </Link>
             </li>
           ))}
         </ul>