Added paperless service with documentation

docs/configuration.md

@@ -167,3 +167,16 @@ In order to easily generate all required icon preset for the PWA to work, a tool
 ```bash
 npx vue-pwa-asset-generator -a {your_512x512_source_png} -o {your_output_folder}
 ```
+
+### Supported services
+
+Currently the following services are supported for showing quick infos on the card. They can be used by setting the type to one of the following values at the item.
+
+- PiHole
+- AdGuardHome
+- PaperlessNG
+
+### Additional configuration
+
+#### Paperless
+For Paperless you need an API-Key which you have to store at the item in the field `apikey`.

src/components/services/PaperlessNG.vue

@@ -0,0 +1,81 @@
+<template>
+  <div>
+    <div class="card" :class="item.class">
+      <a :href="item.url" :target="item.target" rel="noreferrer">
+        <div class="card-content">
+          <div class="media">
+            <div v-if="item.logo" class="media-left">
+              <figure class="image is-48x48">
+                <img :src="item.logo" :alt="`${item.name} logo`" />
+              </figure>
+            </div>
+            <div v-if="item.icon" class="media-left">
+              <figure class="image is-48x48">
+                <i style="font-size: 35px" :class="['fa-fw', item.icon]"></i>
+              </figure>
+            </div>
+            <div class="media-content">
+              <p class="title is-4">{{ item.name }}</p>
+              <p class="subtitle is-6">
+                <template v-if="item.subtitle">
+                  {{ item.subtitle }}
+                </template>
+                <template v-else-if="api">
+                  happily storing {{ api.count }} documents
+                </template>
+              </p>
+            </div>
+          </div>
+          <div class="tag" :class="item.tagstyle" v-if="item.tag">
+            <strong class="tag-text">#{{ item.tag }}</strong>
+          </div>
+        </div>
+      </a>
+    </div>
+  </div>
+</template>
+
+<script>
+export default {
+  name: "Paperless",
+  props: {
+    item: Object,
+  },
+  data: () => ({
+    api: null,
+  }),
+  created() {
+    this.fetchStatus();
+  },
+  methods: {
+    fetchStatus: async function () {
+      if (this.item.subtitle != null) return; // omitting unnecessary ajax call as the subtitle is showing
+      var apikey = this.item.apikey;
+      if (!apikey) {
+        console.error("apikey is not present in config.yml for the paperless entry!");
+        return;
+      }
+      const url = `${this.item.url}/api/documents/`;
+      this.api = await fetch(url, {
+          headers: {
+            "Authorization": "Token " + this.item.apikey
+          }
+        })
+        .then(function(response) {
+          if (!response.ok) {
+            throw new Error("Not 2xx response")
+          } else {
+            return response.json()
+          }
+        })
+        .catch((e) => console.log(e));
+    },
+  },
+};
+</script>
+
+<style scoped lang="scss">
+.media-left img {
+  max-height: 100%;
+}
+</style>