fix: use slugs instead of title as basis for explorer (#652)

* use slugs instead of title as basis for explorer

* fix folder persist state, better default behaviour

* use relative path instead of full path as full path is affected by -d

* dont use title in breadcrumb if it's just index lol

quartz/components/Explorer.tsx

@@ -12,6 +12,9 @@ const defaultOptions = {
   folderClickBehavior: "collapse",
   folderDefaultState: "collapsed",
   useSavedState: true,
+  mapFn: (node) => {
+    return node
+  },
   sortFn: (a, b) => {
     // Sort order: folders first, then files. Sort folders and files alphabetically
     if ((!a.file && !b.file) || (a.file && b.file)) {
@@ -22,6 +25,7 @@ const defaultOptions = {
         sensitivity: "base",
       })
     }
+
     if (a.file && !b.file) {
       return 1
     } else {
@@ -41,46 +45,34 @@ export default ((userOpts?: Partial<Options>) => {
   let jsonTree: string
 
   function constructFileTree(allFiles: QuartzPluginData[]) {
-    if (!fileTree) {
-      // Construct tree from allFiles
-      fileTree = new FileNode("")
-      allFiles.forEach((file) => fileTree.add(file, 1))
+    if (fileTree) {
+      return
+    }
 
-      /**
-       * Keys of this object must match corresponding function name of `FileNode`,
-       * while values must be the argument that will be passed to the function.
-       *
-       * e.g. entry for FileNode.sort: `sort: opts.sortFn` (value is sort function from options)
-       */
-      const functions = {
-        map: opts.mapFn,
-        sort: opts.sortFn,
-        filter: opts.filterFn,
-      }
+    // Construct tree from allFiles
+    fileTree = new FileNode("")
+    allFiles.forEach((file) => fileTree.add(file))
 
-      // Execute all functions (sort, filter, map) that were provided (if none were provided, only default "sort" is applied)
-      if (opts.order) {
-        // Order is important, use loop with index instead of order.map()
-        for (let i = 0; i < opts.order.length; i++) {
-          const functionName = opts.order[i]
-          if (functions[functionName]) {
-            // for every entry in order, call matching function in FileNode and pass matching argument
-            // e.g. i = 0; functionName = "filter"
-            // converted to: (if opts.filterFn) => fileTree.filter(opts.filterFn)
-
-            // @ts-ignore
-            // typescript cant statically check these dynamic references, so manually make sure reference is valid and ignore warning
-            fileTree[functionName].call(fileTree, functions[functionName])
-          }
+    // Execute all functions (sort, filter, map) that were provided (if none were provided, only default "sort" is applied)
+    if (opts.order) {
+      // Order is important, use loop with index instead of order.map()
+      for (let i = 0; i < opts.order.length; i++) {
+        const functionName = opts.order[i]
+        if (functionName === "map") {
+          fileTree.map(opts.mapFn)
+        } else if (functionName === "sort") {
+          fileTree.sort(opts.sortFn)
+        } else if (functionName === "filter") {
+          fileTree.filter(opts.filterFn)
         }
       }
-
-      // Get all folders of tree. Initialize with collapsed state
-      const folders = fileTree.getFolderPaths(opts.folderDefaultState === "collapsed")
-
-      // Stringify to pass json tree as data attribute ([data-tree])
-      jsonTree = JSON.stringify(folders)
     }
+
+    // Get all folders of tree. Initialize with collapsed state
+    const folders = fileTree.getFolderPaths(opts.folderDefaultState === "collapsed")
+
+    // Stringify to pass json tree as data attribute ([data-tree])
+    jsonTree = JSON.stringify(folders)
   }
 
   function Explorer({ allFiles, displayClass, fileData }: QuartzComponentProps) {
@@ -120,6 +112,7 @@ export default ((userOpts?: Partial<Options>) => {
       </div>
     )
   }
+
   Explorer.css = explorerStyle
   Explorer.afterDOMLoaded = script
   return Explorer