[Enhancement] Add default avatar when profile image is not available (#188)

* Add default avatar when agent image is not available

* Remove fonts from avatar
Separate non-computed style values

app/javascript/dashboard/components/widgets/Avatar.vue

@@ -0,0 +1,80 @@
+<template>
+  <div
+    class="avatar-container"
+    :style="[style, customStyle]"
+    aria-hidden="true"
+  >
+    <span>{{ userInitial }}</span>
+  </div>
+</template>
+
+<script>
+export default {
+  name: 'Avatar',
+  props: {
+    username: {
+      type: String,
+    },
+    backgroundColor: {
+      type: String,
+    },
+    color: {
+      type: String,
+    },
+    customStyle: {
+      type: Object,
+    },
+    size: {
+      type: Number,
+      default: 40,
+    },
+    src: {
+      type: String,
+    },
+    rounded: {
+      type: Boolean,
+      default: true,
+    },
+  },
+  computed: {
+    style() {
+      return {
+        width: `${this.size}px`,
+        height: `${this.size}px`,
+        borderRadius: this.rounded ? '50%' : 0,
+        lineHeight: `${this.size + Math.floor(this.size / 20)}px`,
+        backgroundColor: this.backgroundColor,
+        fontSize: `${Math.floor(this.size / 2.5)}px`,
+        color: this.color,
+      };
+    },
+    userInitial() {
+      return this.initials || this.initial(this.username);
+    },
+  },
+  methods: {
+    initial(username) {
+      const parts = username ? username.split(/[ -]/) : [];
+      let initials = '';
+      for (let i = 0; i < parts.length; i += 1) {
+        initials += parts[i].charAt(0);
+      }
+      if (initials.length > 2 && initials.search(/[A-Z]/) !== -1) {
+        initials = initials.replace(/[a-z]+/g, '');
+      }
+      initials = initials.substr(0, 2).toUpperCase();
+      return initials;
+    },
+  },
+};
+</script>
+
+<style lang="scss" scoped>
+.avatar-container {
+  display: flex;
+  font-weight: bold;
+  align-items: center;
+  justify-content: center;
+  text-align: center;
+}
+</style>

app/javascript/dashboard/components/widgets/Thumbnail.spec.js

@@ -0,0 +1,48 @@
+import { mount } from '@vue/test-utils';
+import Avatar from './Avatar.vue';
+import Thumbnail from './Thumbnail.vue';
+
+describe(`when there are NO errors loading the thumbnail`, () => {
+  it(`should render the agent thumbnail`, () => {
+    const wrapper = mount(Thumbnail, {
+      propsData: {
+        src: 'https://some_valid_url.com',
+      },
+      data() {
+        return {
+          imgError: false,
+        };
+      },
+    });
+    expect(wrapper.find('#image').exists()).toBe(true);
+    expect(wrapper.contains(Avatar)).toBe(false);
+  });
+});
+
+describe(`when there ARE errors loading the thumbnail`, () => {
+  it(`should render the agent avatar`, () => {
+    const wrapper = mount(Thumbnail, {
+      propsData: {
+        src: 'https://some_invalid_url.com',
+      },
+      data() {
+        return {
+          imgError: true,
+        };
+      },
+    });
+    expect(wrapper.contains('#image')).toBe(false);
+    expect(wrapper.contains(Avatar)).toBe(true);
+  });
+});
+
+describe(`when Avatar shows`, () => {
+  it(`initials shold correspond to username`, () => {
+    const wrapper = mount(Avatar, {
+      propsData: {
+        username: 'Angie Rojas',
+      },
+    });
+    expect(wrapper.find('span').text()).toBe('AR');
+  });
+});

app/javascript/dashboard/components/widgets/Thumbnail.vue

@@ -1,7 +1,26 @@
 <template>
-  <div class="user-thumbnail-box" v-bind:style="{ height: size, width: size }">
-    <img v-bind:src="src" class="user-thumbnail">
-    <img class="source-badge" src="~dashboard/assets/images/fb-badge.png" v-if="badge === 'Facebook'">
+  <div class="user-thumbnail-box" :style="{ height: size, width: size }">
+    <img
+      v-if="!imgError && Boolean(src)"
+      id="image"
+      :src="src"
+      class="user-thumbnail"
+      @error="onImgError()"
+    />
+    <Avatar
+      v-else
+      :username="username"
+      class="user-thumbnail"
+      background-color="#1f93ff"
+      color="white"
+    >
+    </Avatar>
+    <img
+      v-if="badge === 'Facebook'"
+      id="badge"
+      class="source-badge"
+      src="~dashboard/assets/images/fb-badge.png"
+    />
   </div>
 </template>
 <script>
@@ -10,8 +29,14 @@
  * Src - source for round image
  * Size - Size of the thumbnail
  * Badge - Chat source indication { fb / telegram }
+ * Username - User name for avatar
  */
+import Avatar from './Avatar';
+
 export default {
+  components: {
+    Avatar,
+  },
   props: {
     src: {
       type: String,
@@ -24,6 +49,19 @@ export default {
       type: String,
       default: 'fb',
     },
+    username: {
+      type: String,
+    },
+  },
+  data() {
+    return {
+      imgError: false,
+    };
+  },
+  methods: {
+    onImgError() {
+      this.imgError = true;
+    },
   },
 };
 </script>

app/javascript/dashboard/components/widgets/conversation/ConversationCard.vue

@@ -8,6 +8,8 @@
       :src="chat.meta.sender.thumbnail"
       :badge="chat.meta.sender.channel"
       class="columns"
+      :username="chat.meta.sender.name"
+      size="40px"
     />
     <div class="conversation--details columns">
       <h4 class="conversation--user">

app/javascript/dashboard/components/widgets/conversation/ConversationHeader.vue

@@ -5,6 +5,7 @@
         :src="chat.meta.sender.thumbnail"
         size="40px"
         :badge="chat.meta.sender.channel"
+        :username="chat.meta.sender.name"
       />
       <h3 class="user--name">
         {{ chat.meta.sender.name }}