Add Nextcloud custom service (#650)

Add Nextcloud custom service

docs/customservices.md

@@ -36,6 +36,7 @@ within Homer:
 - [OctoPrint](#octoprint)
 - [Tdarr](#tdarr)
 - [PiAlert](#pialert)
+- [Nextcloud](#nextcloud)
 - [Immich](#immich)
 - [OpenHAB](#openhab)
 - [Jellystat](#jellystat)
@@ -432,6 +433,20 @@ for transcoding on your Tdarr instance as well as the number of errored items.
   checkInterval: 5000 # (Optional) Interval (in ms) for updating the queue & error counts
 ```
 
+## Nextcloud
+
+This service displays a version string instead of a subtitle. The indicator
+shows if Nextcloud is online, offline, or in [maintenance
+mode](https://docs.nextcloud.com/server/stable/admin_manual/maintenance/upgrade.html#maintenance-mode).
+Example configuration:
+
+```yaml
+- name: Nextcloud
+  type: Nextcloud
+  logo: assets/tools/sample.png
+  url: http://nextcloud.example.com
+```
+
 ## PiAlert
 
 The PiAlert service displays stats from your PiAlert server.

src/components/services/Nextcloud.vue

@@ -0,0 +1,101 @@
+<template>
+  <Generic :item="item">
+    <template #content>
+      <p class="title is-4">{{ item.name }}</p>
+      <p class="subtitle is-6">
+        <template v-if="versionstring">
+          Version {{ versionstring }}
+        </template>
+      </p>
+    </template>
+    <template #indicator>
+      <div v-if="status" class="status" :class="status">
+        {{ status }}
+      </div>
+    </template>
+  </Generic>
+</template>
+
+<script>
+import service from "@/mixins/service.js";
+import Generic from "./Generic.vue";
+
+export default {
+  name: "Nextcloud",
+  mixins: [service],
+  props: {
+    item: Object,
+  },
+  components: {
+    Generic,
+  },
+  data: () => ({
+    status: null,
+    fetchOk: null,
+    versionstring: null,
+    maintenance: null,
+  }),
+  computed: {
+    status: function () {
+      if (!this.fetchOk) {
+        return "offline";
+      }
+      return this.maintenance ? "maintenance" : "online";
+    },
+  },
+  created() {
+    this.fetchStatus();
+  },
+  methods: {
+    fetchStatus: async function () {
+      this.fetch("/status.php")
+        .then((response) => {
+          this.fetchOk = true;
+          this.versionstring = response.versionstring;
+          this.maintenance = response.maintenance;
+        })
+        .catch((e) => {
+          this.fetchOk = false;
+          console.log(e);
+        });
+    },
+  },
+};
+</script>
+
+<style scoped lang="scss">
+.status {
+  font-size: 0.8rem;
+  color: var(--text-title);
+  white-space: nowrap;
+  margin-left: 0.25rem;
+
+  &.online:before {
+    background-color: #94e185;
+    border-color: #78d965;
+    box-shadow: 0 0 5px 1px #94e185;
+  }
+
+  &.maintenance:before {
+    background-color: #f8a306;
+    border-color: #e1b35e;
+    box-shadow: 0 0 5px 1px #f8a306;
+  }
+
+  &.offline:before {
+    background-color: #c9404d;
+    border-color: #c42c3b;
+    box-shadow: 0 0 5px 1px #c9404d;
+  }
+
+  &:before {
+    content: " ";
+    display: inline-block;
+    width: 7px;
+    height: 7px;
+    margin-right: 10px;
+    border: 1px solid #000;
+    border-radius: 7px;
+  }
+}
+</style>