Add a badge on locations for new photos

- The last updated date is taken from the latest photo of each location (without any other API call, just some data manipulation)
- Manipulation of data in the preload request instead of the code

src/atoms/Badge.svelte

@@ -0,0 +1,9 @@
+<script>
+    // Props
+    export let text
+    export let size = 'small'
+</script>
+
+<div class="badge badge--{size}">
+    <span>{text}</span>
+</div>

src/molecules/Location.svelte

@@ -1,19 +1,30 @@
 <script>
+    import { dateOlderThan } from 'utils/functions'
+    // Components
+    import Badge from 'atoms/Badge'
+
     // Props
     export let location
 
     // Variables
-    const { name, slug, country } = location
+    const { name, slug, country, last_updated } = location
+    const timeLimit = 7 * 24 * 60 * 60 * 1000 // d*h*m*s*ms = 1 week
 </script>
 
 <div class="location" role="listitem">
     <a href="/location/{country.slug}/{slug}" rel="prefetch" sapper-noscroll>
         <img src={country.flag.full_url} alt="Flag of {country.name}">
+
         <div class="anim-mask mask-city">
             <h3 class="location__city">{name}</h3>
         </div>
+
         <div class="anim-mask mask-country">
             <p class="location__country style-caps">{country.name}</p>
         </div>
+
+        {#if dateOlderThan(last_updated, timeLimit)}
+        <Badge size="small" text="new" />
+        {/if}
     </a>
 </div>

src/routes/_layout.svelte

@@ -1,6 +1,6 @@
 <script context="module">
     export async function preload (page, session) {
-        const req = await this.fetch(apiEndpoints.gql, {
+        await this.fetch(apiEndpoints.gql, {
             method: 'post',
             headers: {
                 'Content-Type': 'application/json',
@@ -56,16 +56,58 @@
                         illu_mobile { full_url }
                     }
                 }
+                photos (filter: { status_eq: "published" }) {
+                    data {
+                        created_on
+                        location { id }
+                    }
+                }
             }`})
         })
-        const result = await req.json()
+            .then(res => res.json())
-        if (req.ok) {
+            .then(res => {
-            // Set data into store
+                const { data } = res
-            site.set(result.data.site.data[0])
+
-            continents.set(result.data.continents.data)
+                // Manipulate countries data
-            countries.set(result.data.countries.data)
+                data.countries.data.forEach(country => {
-            locations.set(result.data.locations.data)
+                    const matchingContinent = data.continents.data.find(continent => continent.id === country.continent.id)
-        }
+                    // Replace continent with request data
+                    country.continent = matchingContinent
+                    // Add countries to each continents
+                    matchingContinent.countries = []
+                    matchingContinent.countries.push(country)
+                })
+
+                // Replace each location's country with request data
+                data.locations.data.forEach(location => {
+                    location.country = data.countries.data.find(country => country.id === location.country.id)
+                })
+
+                // Filter and keep only the latest photo for each location
+                // https://stackoverflow.com/questions/61636965/
+                const latestPhotos = Object.values(data.photos.data.reduce((photos, photo) => {
+                    if (photos.hasOwnProperty(photo.location.id)) {
+                        if (new Date(photos[photo.location.id].created_on) < new Date(photo.created_on)) {
+                            photos[photo.location.id] = photo
+                        }
+                    } else {
+                        photos[photo.location.id] = photo
+                    }
+                    return photos
+                }, {}))
+
+                // Add last updated date to each location
+                data.locations.data.forEach(location => {
+                    const latestPhoto = latestPhotos.find(photo => photo.location.id === location.id)
+                    location.last_updated = latestPhoto.created_on
+                })
+
+                // Set data into store
+                site.set(data.site.data[0])
+                continents.set(data.continents.data)
+                countries.set(data.countries.data)
+                locations.set(data.locations.data)
+            })
     }
 </script>
 
@@ -112,30 +154,6 @@
             '/fonts/M-Light.woff2',
         ]
     }
-
-
-    /*
-    ** Manipulate data
-    */
-    if (process.browser) {
-        if ($countries) {
-            $countries.forEach(country => {
-                const matchingContinent = $continents.find(continent => continent.id === country.continent.id)
-                // Replace continent with request data
-                country.continent = matchingContinent
-                // Add countries to each continents
-                matchingContinent.countries = []
-                matchingContinent.countries.push(country)
-            })
-        }
-
-        if ($locations) {
-            // Replace each location's country with request data
-            $locations.forEach(location => {
-                location.country = $countries.find(country => country.id === location.country.id)
-            })
-        }
-    }
 </script>
 
 <style lang="scss" global>

src/style/_variables.scss

@@ -2,6 +2,7 @@
 $color-primary: #3C0576;
 $color-primary-darker: #2D0458;
 $color-secondary: #FF6C89;
+$color-secondary-light: #FFB3C2;
 $color-secondary-bright: #FF0536;
 $color-text: #333;
 $color-tertiary: #FFE0C5;

src/style/atoms/_badge.scss

@@ -0,0 +1,27 @@
+/*
+** Badge
+*/
+.badge {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    color: $color-primary-darker;
+    font-family: $font-sans-sb;
+    text-transform: uppercase;
+    letter-spacing: 1px;
+    background-color: $color-secondary-light;
+    box-shadow: 0 0 0 4px rgba($color-tertiary, 0.15);
+    border-radius: 50vh;
+
+    // Small size
+    &--small {
+        height: 14px;
+        padding: 0 4px;
+        font-size: rem(7px);
+        line-height: 14px;
+
+        span {
+            margin-top: 0.25em;
+        }
+    }
+}

src/style/molecules/_location.scss

@@ -35,18 +35,29 @@
             font-size: rem(48px);
         }
     }
-        .mask-city {
-            height: 40px;
-            margin: 24px 0 16px;
 
-            @include breakpoint (md) {
+    // Masks
-                height: 64px;
+    .mask-city {
-                margin-bottom: 24px;
+        height: 40px;
-            }
+        margin: 16px 0 12px;
+
+        @include breakpoint (md) {
+            height: 64px;
+            margin-top: 24px;
         }
-        .mask-country {
+    }
-            height: 16px;
+    .mask-country {
+        height: 16px;
+    }
+
+    // Badge
+    .badge {
+        margin-top: 16px;
+
+        @include breakpoint (sm) {
+            margin-top: 24px;
         }
+    }
 
     // Hover
     &:hover {

src/style/style.scss

@@ -22,6 +22,7 @@
 @import "atoms/link";
 @import "atoms/switcher";
 @import "atoms/counter";
+@import "atoms/badge";
 
 // Molecules
 @import "molecules/location";

src/utils/functions.js

@@ -185,6 +185,16 @@ export const relativeTime = (originDate, limit = 0) => {
 }
 
 
+/*
+** Check if date is older than
+*/
+export const dateOlderThan = (originDate, limit) => {
+    const date = new Date(originDate)
+    const diff = Number(new Date()) - date
+    return diff < limit
+}
+
+
 /*
 ** Controls Anime.js parallax
 */