From 2056871dc995a5a8ba653e74980d1ac98842f720 Mon Sep 17 00:00:00 2001
From: DecDuck <declanahofmeyr@gmail.com>
Date: Sun, 1 Jun 2025 18:33:42 +1000
Subject: [PATCH] Add UI for multi-library management #59 (#63)

* feat: add ui for library source management

* fix: lint
---
 components/SourceOptions/Filesystem.vue       |  25 ++
 pages/admin/library/index.vue                 |  30 +-
 pages/admin/library/sources/index.vue         | 379 ++++++++++++++++++
 .../v1/admin/library/sources/index.delete.ts  |  25 ++
 .../api/v1/admin/library/sources/index.get.ts |  16 +
 .../v1/admin/library/sources/index.patch.ts   |  67 ++++
 .../v1/admin/library/sources/index.post.ts    |  69 ++++
 server/internal/acls/descriptions.ts          |   5 +
 server/internal/acls/index.ts                 |   5 +
 server/internal/library/filesystem.ts         |   4 +-
 server/internal/library/index.ts              |  13 +
 server/plugins/05.library-init.ts             |   2 +-
 12 files changed, 625 insertions(+), 15 deletions(-)
 create mode 100644 components/SourceOptions/Filesystem.vue
 create mode 100644 pages/admin/library/sources/index.vue
 create mode 100644 server/api/v1/admin/library/sources/index.delete.ts
 create mode 100644 server/api/v1/admin/library/sources/index.get.ts
 create mode 100644 server/api/v1/admin/library/sources/index.patch.ts
 create mode 100644 server/api/v1/admin/library/sources/index.post.ts

diff --git a/components/SourceOptions/Filesystem.vue b/components/SourceOptions/Filesystem.vue
new file mode 100644
index 0000000..9448c06
--- /dev/null
+++ b/components/SourceOptions/Filesystem.vue
@@ -0,0 +1,25 @@
+<template>
+  <div>
+    <label for="path" class="block text-sm font-medium leading-6 text-zinc-100"
+      >Path</label
+    >
+    <p class="text-zinc-400 block text-xs font-medium leading-6">
+      An absolute path to your game library.
+    </p>
+    <div class="mt-2">
+      <input
+        id="path"
+        v-model="model!.baseDir"
+        name="path"
+        type="text"
+        autocomplete="path"
+        placeholder="/mnt/games"
+        class="block w-full rounded-md border-0 py-1.5 px-3 bg-zinc-800 disabled:bg-zinc-900/80 text-zinc-100 disabled:text-zinc-400 shadow-sm ring-1 ring-inset ring-zinc-700 disabled:ring-zinc-800 placeholder:text-zinc-400 focus:ring-2 focus:ring-inset focus:ring-blue-600 sm:text-sm sm:leading-6"
+      />
+    </div>
+  </div>
+</template>
+
+<script setup lang="ts">
+const model = defineModel<{ baseDir: string }>();
+</script>
diff --git a/pages/admin/library/index.vue b/pages/admin/library/index.vue
index 2772c54..7481731 100644
--- a/pages/admin/library/index.vue
+++ b/pages/admin/library/index.vue
@@ -1,18 +1,22 @@
 <template>
   <div class="space-y-4">
-    <div class="mx-auto max-w-2xl lg:mx-0">
-      <h2
-        class="mt-2 text-xl font-semibold tracking-tight text-zinc-100 sm:text-3xl"
-      >
-        Library
-      </h2>
-      <p
-        class="mt-2 text-pretty text-sm font-medium text-gray-500 sm:text-md/8"
-      >
-        As you add folders to your library, Drop will detect it and prompt you
-        to import it. Each game needs to be imported before you can import a
-        version.
-      </p>
+    <div class="sm:flex sm:items-center">
+      <div class="sm:flex-auto">
+        <h1 class="text-base font-semibold text-zinc-100">Game Library</h1>
+        <p class="mt-2 text-sm text-zinc-400">
+          As you add folders to your library sources, Drop will detect it and
+          prompt you to import it. Each game needs to be imported before you can
+          import a version.
+        </p>
+      </div>
+      <div class="mt-4 sm:ml-16 sm:mt-0 sm:flex-none">
+        <NuxtLink
+          to="/admin/library/sources"
+          class="block rounded-md bg-blue-600 px-3 py-2 text-center text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600"
+        >
+          Sources &rarr;
+        </NuxtLink>
+      </div>
     </div>
     <div v-if="toImport" class="rounded-md bg-blue-600/10 p-4">
       <div class="flex">
diff --git a/pages/admin/library/sources/index.vue b/pages/admin/library/sources/index.vue
new file mode 100644
index 0000000..2a37797
--- /dev/null
+++ b/pages/admin/library/sources/index.vue
@@ -0,0 +1,379 @@
+<template>
+  <div>
+    <div class="sm:flex sm:items-center">
+      <div class="sm:flex-auto">
+        <h1 class="text-base font-semibold text-zinc-100">Library Sources</h1>
+        <p class="mt-2 text-sm text-zinc-400">
+          Configure your library sources, where Drop will look for new games and
+          versions to import.
+        </p>
+      </div>
+      <div class="mt-4 sm:ml-16 sm:mt-0 sm:flex-none">
+        <button
+          class="block rounded-md bg-blue-600 px-3 py-2 text-center text-sm font-semibold text-white shadow-sm hover:bg-blue-500 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-blue-600"
+          @click="() => (actionSourceOpen = true)"
+        >
+          Create
+        </button>
+      </div>
+    </div>
+    <div class="mt-8 flow-root">
+      <div class="-mx-4 -my-2 overflow-x-auto sm:-mx-6 lg:-mx-8">
+        <div class="inline-block min-w-full py-2 align-middle sm:px-6 lg:px-8">
+          <table class="min-w-full divide-y divide-zinc-700">
+            <thead>
+              <tr>
+                <th
+                  scope="col"
+                  class="py-3.5 pl-4 pr-3 text-left text-sm font-semibold text-zinc-100 sm:pl-3"
+                >
+                  Name
+                </th>
+                <th
+                  scope="col"
+                  class="px-3 py-3.5 text-left text-sm font-semibold text-zinc-100"
+                >
+                  Type
+                </th>
+                <th
+                  scope="col"
+                  class="px-3 py-3.5 text-left text-sm font-semibold text-zinc-100"
+                >
+                  Working?
+                </th>
+                <th
+                  scope="col"
+                  class="px-3 py-3.5 text-left text-sm font-semibold text-zinc-100"
+                >
+                  Options
+                </th>
+                <th scope="col" class="relative py-3.5 pl-3 pr-4 sm:pr-3">
+                  <span class="sr-only">Edit</span>
+                </th>
+              </tr>
+            </thead>
+            <tbody>
+              <tr
+                v-for="(source, sourceIdx) in sources"
+                :key="source.id"
+                class="even:bg-zinc-800"
+              >
+                <td
+                  class="whitespace-nowrap py-4 pl-4 pr-3 text-sm font-medium text-zinc-100 sm:pl-3"
+                >
+                  {{ source.name }}
+                </td>
+                <td class="whitespace-nowrap px-3 py-4 text-sm text-zinc-400">
+                  {{ source.backend }}
+                </td>
+                <td class="whitespace-nowrap px-3 py-4 text-sm text-zinc-400">
+                  <CheckIcon
+                    v-if="source.working"
+                    class="size-5 text-green-500"
+                  />
+                  <XMarkIcon v-else class="size-5 text-red-500" />
+                </td>
+                <td class="whitespace-nowrap px-3 py-4 text-sm text-zinc-400">
+                  {{ source.options }}
+                </td>
+                <td
+                  class="relative whitespace-nowrap py-4 pl-3 pr-3 text-right text-sm font-medium space-x-2"
+                >
+                  <button
+                    class="text-blue-500 hover:text-blue-400"
+                    @click="() => edit(sourceIdx)"
+                  >
+                    Edit<span class="sr-only">, {{ source.name }}</span>
+                  </button>
+
+                  <button
+                    class="text-red-500 hover:text-red-400"
+                    @click="() => deleteSource(sourceIdx)"
+                  >
+                    Delete<span class="sr-only">, {{ source.name }}</span>
+                  </button>
+                </td>
+              </tr>
+            </tbody>
+          </table>
+        </div>
+      </div>
+    </div>
+
+    <ModalTemplate v-model="actionSourceOpen">
+      <template #default>
+        <div>
+          <DialogTitle as="h3" class="text-lg font-medium leading-6 text-white">
+            Create source
+          </DialogTitle>
+          <p class="mt-1 text-zinc-400 text-sm">
+            Drop will use this source to access your game library, and make them
+            available.
+          </p>
+        </div>
+        <form
+          class="mt-2 space-y-4"
+          @submit.prevent="() => performActionSource_wrapper()"
+        >
+          <div>
+            <label
+              for="name"
+              class="block text-sm font-medium leading-6 text-zinc-100"
+              >Name</label
+            >
+            <p class="text-zinc-400 block text-xs font-medium leading-6">
+              The name of your source, for reference.
+            </p>
+            <div class="mt-2">
+              <input
+                id="name"
+                v-model="sourceName"
+                name="name"
+                type="text"
+                autocomplete="name"
+                placeholder="My New Source"
+                class="block w-full rounded-md border-0 py-1.5 px-3 bg-zinc-800 disabled:bg-zinc-900/80 text-zinc-100 disabled:text-zinc-400 shadow-sm ring-1 ring-inset ring-zinc-700 disabled:ring-zinc-800 placeholder:text-zinc-400 focus:ring-2 focus:ring-inset focus:ring-blue-600 sm:text-sm sm:leading-6"
+              />
+            </div>
+          </div>
+          <div v-if="createMode">
+            <label class="block text-sm font-medium leading-6 text-zinc-100"
+              >Type</label
+            >
+            <p class="text-zinc-400 block text-xs font-medium leading-6">
+              The type of your source. Changes the required options.
+            </p>
+
+            <RadioGroup v-model="currentSourceOption" class="mt-2">
+              <RadioGroupLabel class="sr-only">Type</RadioGroupLabel>
+              <div class="space-y-4">
+                <RadioGroupOption
+                  v-for="[source, metadata] in optionsMetadataIter"
+                  :key="source"
+                  v-slot="{ checked }"
+                  as="template"
+                  :value="source"
+                >
+                  <div
+                    :class="[
+                      'relative block cursor-pointer bg-zinc-800 rounded-lg border border-zinc-900 px-2 py-2 shadow-sm focus:outline-none sm:flex sm:justify-between',
+                    ]"
+                  >
+                    <span class="flex items-center gap-x-2">
+                      <div>
+                        <component
+                          :is="metadata.icon"
+                          class="size-12 bg-zinc-900 rounded-xl p-3 text-zinc-400"
+                        />
+                      </div>
+                      <span class="flex flex-col text-sm">
+                        <RadioGroupLabel
+                          as="span"
+                          class="font-semibold text-zinc-100"
+                          >{{ source }}</RadioGroupLabel
+                        >
+                        <RadioGroupDescription as="span" class="text-zinc-400">
+                          {{ metadata.description }}
+                        </RadioGroupDescription>
+                      </span>
+                    </span>
+                    <span
+                      :class="[
+                        checked ? 'ring-2 ring-blue-600' : '',
+                        'pointer-events-none absolute -inset-px rounded-lg',
+                      ]"
+                      aria-hidden="true"
+                    />
+                  </div>
+                </RadioGroupOption>
+              </div>
+            </RadioGroup>
+          </div>
+
+          <div class="h-[1px] w-full bg-zinc-700 rounded-full" />
+          <component
+            :is="optionUIs[currentSourceOption]"
+            v-model="sourceConfig"
+          />
+
+          <input type="submit" class="hidden" />
+        </form>
+
+        <div v-if="modalError" class="mt-3 rounded-md bg-red-600/10 p-4">
+          <div class="flex">
+            <div class="flex-shrink-0">
+              <XCircleIcon class="h-5 w-5 text-red-600" aria-hidden="true" />
+            </div>
+            <div class="ml-3">
+              <h3 class="text-sm font-medium text-red-600">
+                {{ modalError }}
+              </h3>
+            </div>
+          </div>
+        </div>
+      </template>
+
+      <template #buttons="{ close }">
+        <LoadingButton
+          :loading="modalLoading"
+          :disabled="modalLoading"
+          class="w-full sm:w-fit"
+          @click="() => performActionSource_wrapper()"
+        >
+          {{ createMode ? "Create" : "Save" }}
+        </LoadingButton>
+        <button
+          ref="cancelButtonRef"
+          type="button"
+          class="mt-3 inline-flex w-full justify-center rounded-md bg-zinc-800 px-3 py-2 text-sm font-semibold text-zinc-100 shadow-sm ring-1 ring-inset ring-zinc-800 hover:bg-zinc-900 sm:mt-0 sm:w-auto"
+          @click="
+            () => {
+              editIndex = undefined;
+              close();
+            }
+          "
+        >
+          Cancel
+        </button>
+      </template>
+    </ModalTemplate>
+  </div>
+</template>
+
+<script setup lang="ts">
+/**
+ * I did something a little cursed for this
+ * To avoid making a separate modal for saving, we
+ * instead set the index of the source we want to edit
+ * and there's a bunch of checks everywhere to switch
+ * between 'create' and 'edit'
+ */
+
+import { SourceOptionsFilesystem } from "#components";
+import {
+  DialogTitle,
+  RadioGroup,
+  RadioGroupDescription,
+  RadioGroupLabel,
+  RadioGroupOption,
+} from "@headlessui/vue";
+import { XCircleIcon } from "@heroicons/vue/20/solid";
+import { CheckIcon, DocumentIcon, XMarkIcon } from "@heroicons/vue/24/outline";
+import { FetchError } from "ofetch";
+import type { Component } from "vue";
+import type { LibraryBackend } from "~/prisma/client";
+import type { WorkingLibrarySource } from "~/server/api/v1/admin/library/sources/index.get";
+
+definePageMeta({
+  layout: "admin",
+});
+
+const sources = ref(
+  await $dropFetch<WorkingLibrarySource[]>("/api/v1/admin/library/sources"),
+);
+
+const editIndex = ref<undefined | number>(undefined);
+const createMode = computed(() => editIndex.value === undefined);
+
+const actionSourceOpen = ref(false);
+const currentSourceOption = ref<LibraryBackend>("Filesystem");
+const sourceName = ref("");
+const sourceConfig = ref<object>({});
+
+const modalError = ref<undefined | string>();
+const modalLoading = ref(false);
+
+const optionUIs: { [key in LibraryBackend]: Component } = {
+  Filesystem: SourceOptionsFilesystem,
+};
+const optionsMetadata: {
+  [key in LibraryBackend]: {
+    description: string;
+    icon: Component;
+  };
+} = {
+  Filesystem: {
+    description:
+      "Imports games from a path on disk. Requires version-based folder structure, and supports archived games.",
+    icon: DocumentIcon,
+  },
+};
+const optionsMetadataIter = Object.entries(optionsMetadata);
+
+async function performActionSource() {
+  const createMode = editIndex.value === undefined;
+
+  const source = await $dropFetch<WorkingLibrarySource>(
+    "/api/v1/admin/library/sources",
+    {
+      body: {
+        id: createMode ? undefined : sources.value[editIndex.value!].id,
+        name: sourceName.value,
+        options: sourceConfig.value,
+      },
+      method: createMode ? "POST" : "PATCH",
+    },
+  );
+  if (createMode) {
+    sources.value.push(source);
+  } else {
+    sources.value[editIndex.value!] = source;
+  }
+}
+
+function performActionSource_wrapper() {
+  modalError.value = undefined;
+  modalLoading.value = true;
+  performActionSource()
+    .then(() => {
+      actionSourceOpen.value = false;
+      sourceConfig.value = {};
+      sourceName.value = "";
+    })
+    .catch((e) => {
+      if (e instanceof FetchError) {
+        modalError.value = e.statusMessage ?? e.message;
+      } else {
+        modalError.value = e as string;
+      }
+    })
+    .finally(() => {
+      modalLoading.value = false;
+    });
+}
+
+function edit(index: number) {
+  const source = sources.value[index];
+  if (!source) return;
+
+  sourceName.value = source.name;
+  sourceConfig.value = source.options! as object;
+
+  editIndex.value = index;
+  actionSourceOpen.value = true;
+}
+
+async function deleteSource(index: number) {
+  const source = sources.value[index];
+  if (!source) return;
+
+  try {
+    await $dropFetch("/api/v1/admin/library/sources", {
+      method: "DELETE",
+      body: { id: source.id },
+    });
+  } catch (e) {
+    createModal(
+      ModalType.Notification,
+      {
+        title: "Failed to delete library source",
+        // @ts-expect-error attempt to display statusMessage on error
+        description: `Drop couldn't add delete this source: ${e?.statusMessage}`,
+      },
+      (_, c) => c(),
+    );
+  }
+
+  sources.value.splice(index, 1);
+}
+</script>
diff --git a/server/api/v1/admin/library/sources/index.delete.ts b/server/api/v1/admin/library/sources/index.delete.ts
new file mode 100644
index 0000000..eaef699
--- /dev/null
+++ b/server/api/v1/admin/library/sources/index.delete.ts
@@ -0,0 +1,25 @@
+import { type } from "arktype";
+import { throwingArktype } from "~/server/arktype";
+import aclManager from "~/server/internal/acls";
+import prisma from "~/server/internal/db/database";
+
+const DeleteLibrarySource = type({
+  id: "string",
+}).configure(throwingArktype);
+
+export default defineEventHandler<{ body: typeof DeleteLibrarySource.infer }>(
+  async (h3) => {
+    const allowed = await aclManager.allowSystemACL(h3, [
+      "library:sources:delete",
+    ]);
+    if (!allowed) throw createError({ statusCode: 403 });
+
+    const body = await readValidatedBody(h3, DeleteLibrarySource);
+
+    return await prisma.library.delete({
+      where: {
+        id: body.id,
+      },
+    });
+  },
+);
diff --git a/server/api/v1/admin/library/sources/index.get.ts b/server/api/v1/admin/library/sources/index.get.ts
new file mode 100644
index 0000000..b7d5c9d
--- /dev/null
+++ b/server/api/v1/admin/library/sources/index.get.ts
@@ -0,0 +1,16 @@
+import type { Library } from "~/prisma/client";
+import aclManager from "~/server/internal/acls";
+import libraryManager from "~/server/internal/library";
+
+export type WorkingLibrarySource = Library & { working: boolean };
+
+export default defineEventHandler(async (h3) => {
+  const allowed = await aclManager.allowSystemACL(h3, ["library:sources:read"]);
+  if (!allowed) throw createError({ statusCode: 403 });
+
+  const sources = await libraryManager.fetchLibraries();
+
+  // Fetch other library data here
+
+  return sources;
+});
diff --git a/server/api/v1/admin/library/sources/index.patch.ts b/server/api/v1/admin/library/sources/index.patch.ts
new file mode 100644
index 0000000..43dbeb5
--- /dev/null
+++ b/server/api/v1/admin/library/sources/index.patch.ts
@@ -0,0 +1,67 @@
+import { type } from "arktype";
+import { throwingArktype } from "~/server/arktype";
+import aclManager from "~/server/internal/acls";
+import prisma from "~/server/internal/db/database";
+import libraryManager from "~/server/internal/library";
+import { libraryConstructors } from "~/server/plugins/05.library-init";
+import type { WorkingLibrarySource } from "./index.get";
+
+const UpdateLibrarySource = type({
+  id: "string",
+  name: "string",
+  options: "object",
+}).configure(throwingArktype);
+
+export default defineEventHandler<{ body: typeof UpdateLibrarySource.infer }>(
+  async (h3) => {
+    const allowed = await aclManager.allowSystemACL(h3, [
+      "library:sources:update",
+    ]);
+    if (!allowed) throw createError({ statusCode: 403 });
+
+    const body = await readValidatedBody(h3, UpdateLibrarySource);
+
+    const source = await prisma.library.findUnique({ where: { id: body.id } });
+    if (!source)
+      throw createError({
+        statusCode: 400,
+        statusMessage: "Library source not found",
+      });
+
+    const constructor = libraryConstructors[source.backend];
+
+    try {
+      const newLibrary = constructor(body.options, source.id);
+
+      // Test we can actually use it
+      if ((await newLibrary.listGames()) === undefined) {
+        throw "Library failed to fetch games.";
+      }
+
+      const updatedSource = await prisma.library.update({
+        where: {
+          id: source.id,
+        },
+        data: {
+          name: body.name,
+          options: body.options,
+        },
+      });
+
+      await libraryManager.removeLibrary(source.id);
+      await libraryManager.addLibrary(newLibrary);
+
+      const workingSource: WorkingLibrarySource = {
+        ...updatedSource,
+        working: true,
+      };
+
+      return workingSource;
+    } catch (e) {
+      throw createError({
+        statusCode: 400,
+        statusMessage: `Failed to create source: ${e}`,
+      });
+    }
+  },
+);
diff --git a/server/api/v1/admin/library/sources/index.post.ts b/server/api/v1/admin/library/sources/index.post.ts
new file mode 100644
index 0000000..e44c5bd
--- /dev/null
+++ b/server/api/v1/admin/library/sources/index.post.ts
@@ -0,0 +1,69 @@
+import { type } from "arktype";
+import { randomUUID } from "crypto";
+import { LibraryBackend } from "~/prisma/client";
+import { throwingArktype } from "~/server/arktype";
+import aclManager from "~/server/internal/acls";
+import prisma from "~/server/internal/db/database";
+import libraryManager from "~/server/internal/library";
+import { libraryConstructors } from "~/server/plugins/05.library-init";
+import type { WorkingLibrarySource } from "./index.get";
+
+const CreateLibrarySource = type({
+  name: "string",
+  backend: "string",
+  options: "object",
+}).configure(throwingArktype);
+
+export default defineEventHandler<{ body: typeof CreateLibrarySource.infer }>(
+  async (h3) => {
+    const allowed = await aclManager.allowSystemACL(h3, [
+      "library:sources:new",
+    ]);
+    if (!allowed) throw createError({ statusCode: 403 });
+
+    const body = await readValidatedBody(h3, CreateLibrarySource);
+    const backend = Object.values(LibraryBackend).find(
+      (e) => e == body.backend,
+    );
+    if (!backend)
+      throw createError({
+        statusCode: 400,
+        statusMessage: "Invalid source backend.",
+      });
+
+    const constructor = libraryConstructors[backend];
+
+    try {
+      const id = randomUUID();
+      const library = constructor(body.options, id);
+
+      // Test we can actually use it
+      if ((await library.listGames()) === undefined) {
+        throw "Library failed to fetch games.";
+      }
+
+      const source = await prisma.library.create({
+        data: {
+          id,
+          name: body.name,
+          backend,
+          options: body.options,
+        },
+      });
+
+      await libraryManager.addLibrary(library);
+
+      const workingSource: WorkingLibrarySource = {
+        ...source,
+        working: true,
+      };
+
+      return workingSource;
+    } catch (e) {
+      throw createError({
+        statusCode: 400,
+        statusMessage: `Failed to create source: ${e}`,
+      });
+    }
+  },
+);
diff --git a/server/internal/acls/descriptions.ts b/server/internal/acls/descriptions.ts
index d9f21a6..80c1b92 100644
--- a/server/internal/acls/descriptions.ts
+++ b/server/internal/acls/descriptions.ts
@@ -49,6 +49,11 @@ export const systemACLDescriptions: ObjectFromList<typeof systemACLs> = {
   "auth:simple:invitation:delete": "Delete a simple auth invitation.",
 
   "library:read": "Fetch a list of all games on this instance.",
+  "library:sources:read":
+    "Fetch a list of all library sources on this instance",
+  "library:sources:new": "Create a new library source.",
+  "library:sources:update": "Update existing library sources.",
+  "library:sources:delete": "Delete library sources.",
 
   "notifications:read": "Read system notifications.",
   "notifications:mark": "Mark system notifications as read.",
diff --git a/server/internal/acls/index.ts b/server/internal/acls/index.ts
index 96c3708..9f96b5b 100644
--- a/server/internal/acls/index.ts
+++ b/server/internal/acls/index.ts
@@ -50,6 +50,11 @@ export const systemACLs = [
   "notifications:delete",
 
   "library:read",
+  "library:sources:read",
+  "library:sources:new",
+  "library:sources:update",
+  "library:sources:delete",
+
   "game:read",
   "game:update",
   "game:delete",
diff --git a/server/internal/library/filesystem.ts b/server/internal/library/filesystem.ts
index 73a4a32..2381a18 100644
--- a/server/internal/library/filesystem.ts
+++ b/server/internal/library/filesystem.ts
@@ -30,7 +30,9 @@ export class FilesystemProvider
 
     this.myId = id;
     this.config = config;
-    fs.mkdirSync(this.config.baseDir, { recursive: true });
+
+    if (!fs.existsSync(this.config.baseDir))
+      throw "Base directory does not exist.";
   }
 
   id(): string {
diff --git a/server/internal/library/index.ts b/server/internal/library/index.ts
index 873c0df..a8668af 100644
--- a/server/internal/library/index.ts
+++ b/server/internal/library/index.ts
@@ -20,6 +20,19 @@ class LibraryManager {
     this.libraries.set(library.id(), library);
   }
 
+  removeLibrary(id: string) {
+    this.libraries.delete(id);
+  }
+
+  async fetchLibraries() {
+    const libraries = await prisma.library.findMany({});
+    const libraryWithMetadata = libraries.map((e) => ({
+      ...e,
+      working: this.libraries.has(e.id),
+    }));
+    return libraryWithMetadata;
+  }
+
   async fetchAllUnimportedGames() {
     const unimportedGames: { [key: string]: string[] } = {};
 
diff --git a/server/plugins/05.library-init.ts b/server/plugins/05.library-init.ts
index 7c40105..dc0bd7c 100644
--- a/server/plugins/05.library-init.ts
+++ b/server/plugins/05.library-init.ts
@@ -7,7 +7,7 @@ import { FilesystemProvider } from "../internal/library/filesystem";
 import libraryManager from "../internal/library";
 import path from "path";
 
-const libraryConstructors: {
+export const libraryConstructors: {
   [key in LibraryBackend]: (
     value: JsonValue,
     id: string,