From 024ee26705badbfca9f8d1f9b6a4f7eb5b9da17b Mon Sep 17 00:00:00 2001
From: Thomas Basler <thomas@familie-basler.net>
Date: Sat, 6 Jan 2024 20:03:52 +0100
Subject: [PATCH] Feature: Added pull to refresh and websocket indicator

---
 webapp/package.json                |  2 +
 webapp/src/components/BasePage.vue | 84 +++++++++++++++++++++++++++++-
 webapp/src/locales/de.json         |  5 +-
 webapp/src/locales/en.json         |  5 +-
 webapp/src/locales/fr.json         |  5 +-
 webapp/src/views/HomeView.vue      | 54 ++++++++++++++-----
 webapp/yarn.lock                   | 10 ++++
 7 files changed, 147 insertions(+), 18 deletions(-)

diff --git a/webapp/package.json b/webapp/package.json
index 8b36555a..a785674e 100644
--- a/webapp/package.json
+++ b/webapp/package.json
@@ -28,6 +28,7 @@
     "@tsconfig/node18": "^18.2.2",
     "@types/bootstrap": "^5.2.10",
     "@types/node": "^20.10.6",
+    "@types/pulltorefreshjs": "^0.1.7",
     "@types/sortablejs": "^1.15.7",
     "@types/spark-md5": "^3.0.4",
     "@vitejs/plugin-vue": "^5.0.2",
@@ -36,6 +37,7 @@
     "eslint": "^8.56.0",
     "eslint-plugin-vue": "^9.19.2",
     "npm-run-all": "^4.1.5",
+    "pulltorefreshjs": "^0.1.22",
     "sass": "^1.69.7",
     "terser": "^5.26.0",
     "typescript": "^5.3.3",
diff --git a/webapp/src/components/BasePage.vue b/webapp/src/components/BasePage.vue
index 8bb463b5..10b924a8 100644
--- a/webapp/src/components/BasePage.vue
+++ b/webapp/src/components/BasePage.vue
@@ -4,7 +4,12 @@
         <div class="page-header">
             <div class="row">
                 <div class="col-sm-11">
-                    <h1>{{ title }}</h1>
+                    <h1>{{ title }}
+                        <span v-if="showWebSocket" :class="{
+                            'onlineMarker': isWebsocketConnected,
+                            'offlineMarker': !isWebsocketConnected,
+                        }"></span>
+                    </h1>
                 </div>
                 <div class="col-sm-1" v-if="showReload">
                     <button type="button" class="float-end btn btn-outline-primary"
@@ -28,6 +33,7 @@
 <script lang="ts">
 import { defineComponent } from 'vue';
 import { BIconArrowClockwise } from 'bootstrap-icons-vue';
+import PullToRefresh from 'pulltorefreshjs';
 
 export default defineComponent({
     components: {
@@ -37,7 +43,81 @@ export default defineComponent({
         title: { type: String, required: true },
         isLoading: { type: Boolean, required: false, default: false },
         isWideScreen: { type: Boolean, required: false, default: false },
+        isWebsocketConnected: { type: Boolean, required: false, default: false },
+        showWebSocket: { type: Boolean, required: false, default: false },
         showReload: { type: Boolean, required: false, default: false },
     },
+    mounted() {
+        var self = this;
+        console.log("init");
+        PullToRefresh.init({
+            mainElement: 'main', // above which element?
+            instructionsPullToRefresh: this.$t('base.Pull'),
+            instructionsReleaseToRefresh: this.$t('base.Release'),
+            instructionsRefreshing: this.$t('base.Refreshing'),
+            onRefresh: function() {
+                self.$emit('reload');
+            }
+        });
+    },
+    unmounted() {
+        console.log("destroy");
+        PullToRefresh.destroyAll();
+    },
 });
-</script>
\ No newline at end of file
+</script>
+
+<style>
+.ptr--text {
+    color: var(--bs-primary-text-emphasis) !important;
+}
+.ptr--icon {
+    color: var(--bs-primary-text-emphasis) !important;
+}
+
+.offlineMarker:before {
+    content: '';
+    position: absolute;
+    width: 8px;
+    height: 8px;
+    background: #ff0000;
+    border-color: #ff0000;
+    border-radius: 50%;
+}
+.onlineMarker:before {
+    content: '';
+    position: absolute;
+    width: 8px;
+    height: 8px;
+    background: #00bb00;
+    border-color: #00bb00;
+    border-radius: 50%;
+}
+.onlineMarker:after {
+    content: '';
+    position: absolute;
+    width: 32px;
+    height: 32px;
+    margin: -12px 0 0 -12px;
+    border: 1px solid #00bb00;
+    border-radius: 50%;
+    box-shadow: 0 0 4px #00bb00, inset 0 0 4px rgb(56, 111, 169);
+    transform: scale(0);
+    animation: online 2.5s ease-in-out infinite;
+}
+@keyframes online {
+    0% {
+        transform: scale(.1);
+        opacity: 1;
+    }
+
+    70% {
+        transform: scale(2.5);
+        opacity: 0;
+    }
+
+    100% {
+        opacity: 0;
+    }
+}
+</style>
\ No newline at end of file
diff --git a/webapp/src/locales/de.json b/webapp/src/locales/de.json
index 88cdf8ad..796e2de6 100644
--- a/webapp/src/locales/de.json
+++ b/webapp/src/locales/de.json
@@ -26,7 +26,10 @@
         "Loading": "Lade...",
         "Reload": "Aktualisieren",
         "Cancel": "Abbrechen",
-        "Save": "Speichern"
+        "Save": "Speichern",
+        "Refreshing": "Aktualisieren",
+        "Pull": "Zum Aktualisieren nach unten ziehen",
+        "Release": "Loslassen zum Aktualisieren"
     },
     "localeswitcher": {
         "Dark": "Dunkel",
diff --git a/webapp/src/locales/en.json b/webapp/src/locales/en.json
index a04d9c42..ee4c27c9 100644
--- a/webapp/src/locales/en.json
+++ b/webapp/src/locales/en.json
@@ -26,7 +26,10 @@
         "Loading": "Loading...",
         "Reload": "Reload",
         "Cancel": "Cancel",
-        "Save": "Save"
+        "Save": "Save",
+        "Refreshing": "Refreshing",
+        "Pull": "Pull down to refresh",
+        "Release": "Release to refresh"
     },
     "localeswitcher": {
         "Dark": "Dark",
diff --git a/webapp/src/locales/fr.json b/webapp/src/locales/fr.json
index e41436e9..eb8f17b8 100644
--- a/webapp/src/locales/fr.json
+++ b/webapp/src/locales/fr.json
@@ -26,7 +26,10 @@
         "Loading": "Chargement...",
         "Reload": "Reload",
         "Cancel": "Annuler",
-        "Save": "Sauvegarder"
+        "Save": "Sauvegarder",
+        "Refreshing": "Refreshing",
+        "Pull": "Pull down to refresh",
+        "Release": "Release to refresh"
     },
     "localeswitcher": {
         "Dark": "Sombre",
diff --git a/webapp/src/views/HomeView.vue b/webapp/src/views/HomeView.vue
index 902c9259..7c9e9110 100644
--- a/webapp/src/views/HomeView.vue
+++ b/webapp/src/views/HomeView.vue
@@ -1,5 +1,5 @@
 <template>
-    <BasePage :title="$t('home.LiveData')" :isLoading="dataLoading" :isWideScreen="true">
+    <BasePage :title="$t('home.LiveData')" :isLoading="dataLoading" :isWideScreen="true" :showWebSocket="true" :isWebsocketConnected="isWebsocketConnected" @reload="reloadData">
         <HintView :hints="liveData.hints" />
         <InverterTotalInfo :totalData="liveData.total" /><br />
         <div class="row gy-3">
@@ -448,6 +448,8 @@ export default defineComponent({
             alertTypePower: "info",
             showAlertPower: false,
             successCommandPower: "",
+
+            isWebsocketConnected: false,
         };
     },
     created() {
@@ -475,17 +477,23 @@ export default defineComponent({
         this.closeSocket();
     },
     updated() {
+        console.log("Updated");
         // Select first tab
         if (this.isFirstFetchAfterConnect) {
-            this.isFirstFetchAfterConnect = false;
+            console.log("isFirstFetchAfterConnect");
 
-            const firstTabEl = document.querySelector(
-                "#v-pills-tab:first-child button"
-            );
-            if (firstTabEl != null) {
-                const firstTab = new bootstrap.Tab(firstTabEl);
-                firstTab.show();
-            }
+            this.$nextTick(() => {
+                console.log("nextTick");
+                const firstTabEl = document.querySelector(
+                    "#v-pills-tab:first-child button"
+                );
+                if (firstTabEl != null) {
+                    this.isFirstFetchAfterConnect = false;
+                    console.log("Show");
+                    const firstTab = new bootstrap.Tab(firstTabEl);
+                    firstTab.show();
+                }
+            });
         }
     },
     computed: {
@@ -508,15 +516,27 @@ export default defineComponent({
     },
     methods: {
         isLoggedIn,
-        getInitialData() {
-            this.dataLoading = true;
+        getInitialData(triggerLoading : boolean = true) {
+            if (triggerLoading) {
+                this.dataLoading = true;
+            }
             fetch("/api/livedata/status", { headers: authHeader() })
                 .then((response) => handleResponse(response, this.$emitter, this.$router))
                 .then((data) => {
                     this.liveData = data;
-                    this.dataLoading = false;
+                    if (triggerLoading) {
+                        this.dataLoading = false;
+                    }
                 });
         },
+        reloadData() {
+            this.closeSocket();
+
+            setTimeout(() => {
+                this.getInitialData(false);
+                this.initSocket();
+            }, 1000);
+        },
         initSocket() {
             console.log("Starting connection to WebSocket Server");
 
@@ -540,11 +560,19 @@ export default defineComponent({
                 }
             };
 
+            var self = this;
+
             this.socket.onopen = function (event) {
                 console.log(event);
                 console.log("Successfully connected to the echo websocket server...");
+                self.isWebsocketConnected = true;
             };
 
+            this.socket.onclose = function() {
+                console.log("Connection to websocket closed...")
+                self.isWebsocketConnected = false;
+            }
+
             // Listen to window events , When the window closes , Take the initiative to disconnect websocket Connect
             window.onbeforeunload = () => {
                 this.closeSocket();
@@ -763,4 +791,4 @@ export default defineComponent({
     border-radius: var(--bs-border-radius);
     margin-top: 0.25rem;
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/webapp/yarn.lock b/webapp/yarn.lock
index abaacade..3a88732d 100644
--- a/webapp/yarn.lock
+++ b/webapp/yarn.lock
@@ -442,6 +442,11 @@
   dependencies:
     undici-types "~5.26.4"
 
+"@types/pulltorefreshjs@^0.1.7":
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/@types/pulltorefreshjs/-/pulltorefreshjs-0.1.7.tgz#1948638b0c7071282e47bd236d2ccb88bdf66753"
+  integrity sha512-Y0g/yfuycIvpvUmP97n5NE2+HDAOwfREGVERjhMWw2Y0ODh5wvbflcQ5gXPZ+ihgoq+BQZjA1DL8apw2wAsJXA==
+
 "@types/semver@^7.5.0":
   version "7.5.1"
   resolved "https://registry.yarnpkg.com/@types/semver/-/semver-7.5.1.tgz#0480eeb7221eb9bc398ad7432c9d7e14b1a5a367"
@@ -2142,6 +2147,11 @@ prelude-ls@~1.1.2:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
   integrity sha512-ESF23V4SKG6lVSGZgYNpbsiaAkdab6ZgOxe52p7+Kid3W3u3bxR4Vfd/o21dmN7jSt0IwgZ4v5MUd26FEtXE9w==
 
+pulltorefreshjs@^0.1.22:
+  version "0.1.22"
+  resolved "https://registry.yarnpkg.com/pulltorefreshjs/-/pulltorefreshjs-0.1.22.tgz#ddb5e3feee0b2a49fd46e1b18e84fffef2c47ac0"
+  integrity sha512-haxNVEHnS4NCQA7NeG7TSV69z4uqy/N7nfPRuc4dPWe8H6ygUrMjdNeohE+6v0lVVX/ukSjbLYwPUGUYtFKfvQ==
+
 punycode@^2.1.0:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/punycode/-/punycode-2.1.1.tgz#b58b010ac40c22c5657616c8d2c2c02c7bf479ec"