Remove fetch request from heatmap (#13623)

* Remove fetch request from heatmap

Render heatmap data directly to HTML, eliminating one HTTP request on
frontpage and user profile. Also added min-height to the container so
the page content will no longer move after loading.

* rename and error display

* also log the js error

* add error handler

* remove useless inline style and hide divider on small screens

* Update routers/user/home.go

* Update routers/user/profile.go

11 files changed, 86 insertions, 74 deletions

diff --git a/routers/user/home.go b/routers/user/home.go
index f7f1786b33..779971ca97 100644
--- a/routers/user/home.go
+++ b/routers/user/home.go
@@ -114,8 +114,14 @@ func Dashboard(ctx *context.Context) {
 	ctx.Data["SearchLimit"] = setting.UI.User.RepoPagingNum
 	// no heatmap access for admins; GetUserHeatmapDataByUser ignores the calling user
 	// so everyone would get the same empty heatmap
-	ctx.Data["EnableHeatmap"] = setting.Service.EnableUserHeatmap && !ctxUser.KeepActivityPrivate
-	ctx.Data["HeatmapUser"] = ctxUser.Name
+	if setting.Service.EnableUserHeatmap && !ctxUser.KeepActivityPrivate {
+		data, err := models.GetUserHeatmapDataByUser(ctxUser)
+		if err != nil {
+			ctx.ServerError("GetUserHeatmapDataByUser", err)
+			return
+		}
+		ctx.Data["HeatmapData"] = data
+	}
 
 	var err error
 	var mirrors []*models.Repository
diff --git a/routers/user/profile.go b/routers/user/profile.go
index 8bf5cacc56..36f3d0735d 100644
--- a/routers/user/profile.go
+++ b/routers/user/profile.go
@@ -94,10 +94,18 @@ func Profile(ctx *context.Context) {
 	ctx.Data["PageIsUserProfile"] = true
 	ctx.Data["Owner"] = ctxUser
 	ctx.Data["OpenIDs"] = openIDs
+
 	// no heatmap access for admins; GetUserHeatmapDataByUser ignores the calling user
 	// so everyone would get the same empty heatmap
-	ctx.Data["EnableHeatmap"] = setting.Service.EnableUserHeatmap && !ctxUser.KeepActivityPrivate
-	ctx.Data["HeatmapUser"] = ctxUser.Name
+	if setting.Service.EnableUserHeatmap && !ctxUser.KeepActivityPrivate {
+		data, err := models.GetUserHeatmapDataByUser(ctxUser)
+		if err != nil {
+			ctx.ServerError("GetUserHeatmapDataByUser", err)
+			return
+		}
+		ctx.Data["HeatmapData"] = data
+	}
+
 	if len(ctxUser.Description) != 0 {
 		ctx.Data["RenderedDescription"] = string(markdown.Render([]byte(ctxUser.Description), ctx.Repo.RepoLink, map[string]string{"mode": "document"}))
 	}
diff --git a/templates/base/head.tmpl b/templates/base/head.tmpl
index 4738b91463..c8e669387b 100644
--- a/templates/base/head.tmpl
+++ b/templates/base/head.tmpl
@@ -36,8 +36,6 @@
 			SimpleMDE: {{if .RequireSimpleMDE}}true{{else}}false{{end}},
 			Tribute: {{if .RequireTribute}}true{{else}}false{{end}},
 			U2F: {{if .RequireU2F}}true{{else}}false{{end}},
-			Heatmap: {{if .EnableHeatmap}}true{{else}}false{{end}},
-			heatmapUser: {{if .HeatmapUser}}'{{.HeatmapUser}}'{{else}}null{{end}},
 			NotificationSettings: {
 				MinTimeout: {{NotificationSettings.MinTimeout}},
 				TimeoutStep:  {{NotificationSettings.TimeoutStep}},
diff --git a/templates/user/dashboard/dashboard.tmpl b/templates/user/dashboard/dashboard.tmpl
index 7a4968ebe6..dc04d65651 100644
--- a/templates/user/dashboard/dashboard.tmpl
+++ b/templates/user/dashboard/dashboard.tmpl
@@ -5,10 +5,7 @@
 		{{template "base/alert" .}}
 		<div class="ui mobile reversed stackable grid">
 			<div class="ui container ten wide column">
-				{{if .EnableHeatmap}}
-					{{template "user/dashboard/heatmap" .}}
-					<div class="ui divider"></div>
-				{{end}}
+				{{template "user/heatmap" .}}
 				{{template "user/dashboard/feeds" .}}
 			</div>
 			{{template "user/dashboard/repolist" .}}
diff --git a/templates/user/dashboard/heatmap.tmpl b/templates/user/heatmap.tmpl
index 626c70dd8d..a569405d16 100644
--- a/templates/user/dashboard/heatmap.tmpl
+++ b/templates/user/heatmap.tmpl
@@ -1,7 +1,8 @@
-<div id="user-heatmap" style="padding-right: 40px">
-	<activity-heatmap :locale="locale" :suburl="suburl" :user="heatmapUser">
+{{if .HeatmapData}}
+	<div id="user-heatmap" data-heatmap-data="{{Json .HeatmapData}}">
 		<div slot="loading">
 			<div class="ui active centered inline indeterminate text loader" id="loading-heatmap">{{.i18n.Tr "user.heatmap.loading"}}</div>
 		</div>
-	</activity-heatmap>
-</div>
+	</div>
+	<div class="ui divider"></div>
+{{end}}
diff --git a/templates/user/profile.tmpl b/templates/user/profile.tmpl
index 3a3192a828..d6b99b3861 100644
--- a/templates/user/profile.tmpl
+++ b/templates/user/profile.tmpl
@@ -108,10 +108,7 @@
 							<p>{{.i18n.Tr "user.disabled_public_activity"}}</p>
 						</div>
 					{{end}}
-					{{if .EnableHeatmap}}
-						{{template "user/dashboard/heatmap" .}}
-						<div class="ui divider"></div>
-					{{end}}
+					{{template "user/heatmap" .}}
 					<div class="feeds">
 						{{template "user/dashboard/feeds" .}}
 					</div>
diff --git a/web_src/js/components/ActivityHeatmap.vue b/web_src/js/components/ActivityHeatmap.vue
index 1970cb609a..943bf704e2 100644
--- a/web_src/js/components/ActivityHeatmap.vue
+++ b/web_src/js/components/ActivityHeatmap.vue
@@ -1,13 +1,9 @@
 <template>
-  <div class="heatmap-container">
-    <div v-show="isLoading">
-      <slot name="loading"/>
-    </div>
-    <div v-if="!isLoading" class="total-contributions">
+  <div id="user-heatmap">
+    <div class="total-contributions">
       {{ values.length }} contributions in the last 12 months
     </div>
     <calendar-heatmap
-      v-show="!isLoading"
       :locale="locale"
       :no-data-text="locale.no_contributions"
       :tooltip-unit="locale.contributions"
@@ -19,13 +15,17 @@
 </template>
 <script>
 import {CalendarHeatmap} from 'vue-calendar-heatmap';
-const {AppSubUrl, heatmapUser} = window.config;
 
 export default {
   name: 'ActivityHeatmap',
   components: {CalendarHeatmap},
+  props: {
+    values: {
+      type: Array,
+      default: () => [],
+    },
+  },
   data: () => ({
-    isLoading: true,
     colorRange: [
       'var(--color-secondary-alpha-70)',
       'var(--color-primary-light-4)',
@@ -35,20 +35,11 @@ export default {
       'var(--color-primary-dark-4)',
     ],
     endDate: new Date(),
-    values: [],
     locale: {
       contributions: 'contributions',
       no_contributions: 'No contributions',
     },
   }),
-  async mounted() {
-    const res = await fetch(`${AppSubUrl}/api/v1/users/${heatmapUser}/heatmap`);
-    const data = await res.json();
-    this.values = data.map(({contributions, timestamp}) => {
-      return {date: new Date(timestamp * 1000), count: contributions};
-    });
-    this.isLoading = false;
-  },
 };
 </script>
 <style scoped/>
diff --git a/web_src/js/features/heatmap.js b/web_src/js/features/heatmap.js
new file mode 100644
index 0000000000..d1cb43dde0
--- /dev/null
+++ b/web_src/js/features/heatmap.js
@@ -0,0 +1,23 @@
+import Vue from 'vue';
+
+import ActivityHeatmap from '../components/ActivityHeatmap.vue';
+
+export default async function initHeatmap() {
+  const el = document.getElementById('user-heatmap');
+  if (!el) return;
+
+  try {
+    const values = JSON.parse(el.dataset.heatmapData).map(({contributions, timestamp}) => {
+      return {date: new Date(timestamp * 1000), count: contributions};
+    });
+
+    const View = Vue.extend({
+      render: (createElement) => createElement(ActivityHeatmap, {props: {values}}),
+    });
+
+    new View().$mount(el);
+  } catch (err) {
+    console.error(err);
+    el.textContent = 'Heatmap failed to load';
+  }
+}
diff --git a/web_src/js/features/userheatmap.js b/web_src/js/features/userheatmap.js
deleted file mode 100644
index f7e0d1a75f..0000000000
--- a/web_src/js/features/userheatmap.js
+++ /dev/null
@@ -1,10 +0,0 @@
-import Vue from 'vue';
-
-import ActivityHeatmap from '../components/ActivityHeatmap.vue';
-
-export default async function initUserHeatmap() {
-  const el = document.getElementById('user-heatmap');
-  if (!el) return;
-  const View = Vue.extend(ActivityHeatmap);
-  new View().$mount(el);
-}
diff --git a/web_src/js/index.js b/web_src/js/index.js
index 1f4c9a509a..fc49195607 100644
--- a/web_src/js/index.js
+++ b/web_src/js/index.js
@@ -12,7 +12,7 @@ import initMigration from './features/migration.js';
 import initContextPopups from './features/contextpopup.js';
 import initGitGraph from './features/gitgraph.js';
 import initClipboard from './features/clipboard.js';
-import initUserHeatmap from './features/userheatmap.js';
+import initHeatmap from './features/heatmap.js';
 import initProject from './features/projects.js';
 import initServiceWorker from './features/serviceworker.js';
 import initMarkdownAnchors from './markdown/anchors.js';
@@ -2553,7 +2553,7 @@ $(document).ready(async () => {
     attachTribute(document.querySelectorAll('#content, .emoji-input')),
     initGitGraph(),
     initClipboard(),
-    initUserHeatmap(),
+    initHeatmap(),
     initProject(),
     initServiceWorker(),
     initNotificationCount(),
diff --git a/web_src/less/features/heatmap.less b/web_src/less/features/heatmap.less
index 5383847387..61db5c81b0 100644
--- a/web_src/less/features/heatmap.less
+++ b/web_src/less/features/heatmap.less
@@ -1,49 +1,50 @@
 #user-heatmap {
-  width: 107%; // Fixes newest contributions not showing
+  width: 100%;
   text-align: center;
+  position: relative;
+  min-height: 125px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
 
   svg:not(:root) {
     overflow: inherit;
     padding: 0 !important;
   }
 
+  text {
+    fill: currentColor !important;
+  }
+
   @media @mediaLgAndDown {
-    & {
+    &,
+    & + .divider {
       display: none;
     }
   }
 
   .total-contributions {
-    text-align: left;
-    margin-top: 0;
+    font-size: 11px;
+    position: absolute;
+    bottom: 0;
+    left: 25px;
   }
-}
-
-.heatmap-container {
-  position: relative;
-}
 
-.heatmap-container .total-contributions {
-  font-size: 11px;
-  position: absolute;
-  bottom: 0;
-  left: 25px;
-}
-
-@media @mediaLgAndDown {
-  .heatmap-container .total-contributions {
-    left: 21px;
+  @media @mediaLgAndDown {
+    .total-contributions {
+      left: 21px;
+    }
   }
-}
 
-@media (max-width: 1000px) {
-  .heatmap-container .total-contributions {
-    font-size: 10px;
-    left: 17px;
-    bottom: -2px;
+  @media (max-width: 1000px) {
+    .total-contributions {
+      font-size: 10px;
+      left: 17px;
+      bottom: -2px;
+    }
   }
 }
 
-.heatmap-container text {
-  fill: currentColor !important;
+.user.profile #user-heatmap {
+  min-height: 135px;
 }