Multiple file downloads via Filesystem API, and other tuning.

cista-front/src/stores/documents.ts

@@ -3,7 +3,8 @@ import type {
   DirEntry,
   FileEntry,
   FUID,
-  DirList
+  DirList,
+  SelectedItems,
 } from '@/repositories/Document'
 import { formatSize, formatUnixDate } from '@/utils'
 import { defineStore } from 'pinia'
@@ -162,6 +163,50 @@ export const useDocumentStore = defineStore({
     },
     isUserLogged(): boolean {
       return this.user.isLoggedIn
+    },
+    selectedFiles(): SelectedItems {
+      function traverseDir(data: DirEntry | FileEntry, path: string, relpath: string) {
+        if (!('dir' in data)) return
+        for (const [name, attr] of Object.entries(data.dir)) {
+          const fullname = path ? `${path}/${name}` : name
+          // Is this the file we are looking for? Ignore if nested within another selection.
+          let r = relpath
+          if (selected.has(attr.id) && !relpath) {
+            ret.selected.add(attr.id)
+            ret.rootdir[name] = attr
+            r = name
+          } else if (relpath) {
+            r = `${relpath}/${name}`
+          }
+          if (r) {
+            ret.entries[attr.id] = attr
+            ret.fullpath[attr.id] = fullname
+            ret.relpath[attr.id] = r
+            ret.ids.push(attr.id)
+            if (!("dir" in attr)) ret.url[attr.id] = `/files/${fullname}`
+          }
+          traverseDir(attr, fullname, r)
+        }
+      }
+      const selected = this.selected
+      const ret: SelectedItems = {
+        selected: new Set<FUID>(),
+        missing: new Set<FUID>(),
+        rootdir: {} as DirList,
+        entries: {} as Record<FUID, FileEntry | DirEntry>,
+        fullpath: {} as Record<FUID, string>,
+        relpath: {} as Record<FUID, string>,
+        url: {} as Record<FUID, string>,
+        ids: [] as FUID[]
+      }
+      traverseDir(this.root, '', '')
+      // What did we not select?
+      for (const id of selected) {
+        if (!ret.selected.has(id)) ret.missing.add(id)
+      }
+      // Sorted array of FUIDs for easy traversal
+      ret.ids.sort((a, b) => ret.relpath[a].localeCompare(ret.relpath[b] , undefined, {numeric: true, sensitivity: 'base'}))
+      return ret
     }
   }
 })