From fd150e252c916053331e96d12f4281ccb1ca80ab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Fe=CC=81lix=20Pe=CC=81ault?= <hello@flayks.com>
Date: Sat, 9 Oct 2021 18:59:38 +0200
Subject: [PATCH] [wip] Implement photos loading and make everything dynamic

- Handle what happens when we click on Load more photos (detect if can load next or if reached the end)
- Show the current and total amount of photos (WIP as it apparently can't be filtered for aggregated)
- See filtered photos from URL when coming directly
- Disable button when all photos has been seen
- Show message if location doesn't exist
---
 .env.local                         |   6 +-
 src/components/atoms/Button.svelte |   3 +-
 src/routes/photos.svelte           | 201 ++++++++++++++++++++++-------
 src/style/pages/_photos.scss       |  23 +++-
 4 files changed, 180 insertions(+), 53 deletions(-)

diff --git a/.env.local b/.env.local
index 2a3c738..cb77b78 100644
--- a/.env.local
+++ b/.env.local
@@ -1,8 +1,10 @@
 # Options
 VITE_LIMIT_TIME=2 * 7 * 24 * 60 * 60 * 1000
 VITE_PREVIEW_COUNT=4
-VITE_GRID_AMOUNT=21
-VITE_GRID_INCREMENT=21
+VITE_GRID_AMOUNT=22
+VITE_GRID_INCREMENT=22
+VITE_LIST_AMOUNT=10
+VITE_LIST_INCREMENT=10
 
 # API related
 # VITE_API_URL_DEV="http://192.168.1.19:8055"
diff --git a/src/components/atoms/Button.svelte b/src/components/atoms/Button.svelte
index 34917e7..97eb2ad 100644
--- a/src/components/atoms/Button.svelte
+++ b/src/components/atoms/Button.svelte
@@ -2,6 +2,7 @@
     export let text: string
     export let tag: string = 'a'
     export let url: string = undefined
+    export let disabled: boolean = undefined
 
     const classes = [
         'button',
@@ -10,7 +11,7 @@
 </script>
 
 {#if tag === 'button'}
-    <button class={classes} on:click>
+    <button class={classes} on:click disabled={disabled}>
         <slot />
         {text}
     </button>
diff --git a/src/routes/photos.svelte b/src/routes/photos.svelte
index eedb77c..c4a948b 100644
--- a/src/routes/photos.svelte
+++ b/src/routes/photos.svelte
@@ -1,10 +1,11 @@
 <script lang="ts">
-    import { browser } from '$app/env'
     import { page } from '$app/stores'
     import { goto } from '$app/navigation'
     import { getContext } from 'svelte'
     import { fly } from 'svelte/transition'
     import { quartOut } from 'svelte/easing'
+    import dayjs from 'dayjs'
+    import relativeTime from 'dayjs/plugin/relativeTime'
     // Components
     import Metas from '$components/Metas.svelte'
     import IconEarth from '$components/atoms/IconEarth.svelte'
@@ -17,6 +18,11 @@
     import Newsletter from '$components/organisms/Newsletter.svelte'
 
     export let photos: any
+    export let lastUpdated: string
+    export let totalPhotos: number
+    export let filteredCountryExists: boolean
+
+    dayjs.extend(relativeTime)
 
     const { country: countries }: any = getContext('global')
 
@@ -27,16 +33,20 @@
     const defaultCountry = 'all'
     const defaultSort = 'latest'
     let filtered: boolean = false
-    let filterCountry: any = defaultCountry
-    let filterSort: string = defaultSort
+    let filterCountry: any = $page.query.get('country') || defaultCountry
+    let filterSort: string = $page.query.get('sort') || defaultSort
     let countryFlagId: string
 
-    // Define URL params
-    let urlFiltersParams: URLSearchParams
-    if (browser) {
-        urlFiltersParams = new URLSearchParams(window.location.pathname)
-    }
+    // Pages related informations
+    let currentPage: number = 1
+    let currentPhotosAmount: number = photos.length
+    let ended: boolean
+    $: ended = currentPhotosAmount === totalPhotos
 
+
+    /**
+     * Define URL params
+     */
     $: {
         // Define country flag from selection
         if (filterCountry !== defaultCountry) {
@@ -46,17 +56,17 @@
         }
 
         // Update URL filtering params from filter values
-        // if (filtered && filterCountry && filterSort) {
-        //     urlFiltersParams.set('country', filterCountry)
-        //     urlFiltersParams.set('sort', filterSort)
-        //     goto(`${$page.path}?${urlFiltersParams.toString()}`, { noscroll: true })
+        if (filtered && filterCountry && filterSort) {
+            // urlFiltersParams.set('country', filterCountry)
+            // urlFiltersParams.set('sort', filterSort)
+            // goto(`${$page.path}?${urlFiltersParams.toString()}`, { keepfocus:true, replaceState:true, noscroll:true })
 
-        //     // TODO: Request photos from the country of choice
-        //     // loadPhotos()
-        //     console.log('load photos')
-        // }
+            // TODO: Request photos from the country of choice
+            // loadPhotos()
+            console.log('load photos')
+        }
 
-        console.log({ filtered, filterCountry, filterSort })
+        // console.log({ filtered, filterCountry, filterSort })
     }
 
 
@@ -93,25 +103,59 @@
      * Load photos
      */
     // Load more photos from CTA
-    const loadMorePhotos = () => {
-        console.log('load more photos')
-        // TODO: Append more photos from API including options and page
+    const loadMorePhotos = async () => {
+        // Append more photos from API including options and page
+        const newPhotos: any = await loadPhotos(currentPage + 1)
+        console.log(newPhotos)
+
+        if (newPhotos) {
+            photos = [...photos, ...newPhotos]
+
+            // Define actions if the number of new photos is the expected ones
+            if (newPhotos.length === Number(import.meta.env.VITE_GRID_INCREMENT)) {
+                // Increment the current page
+                currentPage++
+            }
+
+            // Increment the currently visible amount of photos
+            currentPhotosAmount += newPhotos.length
+        }
     }
 
-    // Load photos
+    // [function] Load photos helper
     const loadPhotos = async (page?: number, params?: string) => {
         const res = fetchAPI(`
             query {
-                photo (limit: 11, sort: ["-date_created"]) {
+                photos: photo (
+                    filter: {
+                        ${filterCountry !== 'all' ? `location: { country: { slug: { _eq: "${filterCountry}" }} },` : ''}
+                        status: { _eq: "published" },
+                    },
+                    sort: "${filterSort === 'latest' ? '-' : ''}date_created",
+                    limit: ${import.meta.env.VITE_GRID_INCREMENT},
+                    page: ${page},
+                ) {
+                    title
+                    slug
                     image {
                         id
                         title
                     }
+                    location {
+                        slug
+                        country { slug }
+                    }
                 }
             }
         `)
-        const { data } = await res
-        console.log(data)
+        const { data: { photos }} = await res
+
+        if (photos) {
+            // Return new photos
+            return photos
+        } else {
+            throw new Error('Error while loading new photos')
+        }
     }
 </script>
 
@@ -136,10 +180,15 @@
                         <Select
                             name="country" id="filter_country"
                             options={[
-                                { value: 'all', name: 'Worldwide', default: true },
+                                {
+                                    value: 'all',
+                                    name: 'Worldwide',
+                                    default: filterCountry === defaultCountry
+                                },
                                 ...countries.map(({ slug, name }) => ({
                                     value: slug,
                                     name,
+                                    default: filterCountry === slug,
                                 }))
                             ]}
                             on:change={handleCountryChange}
@@ -156,8 +205,8 @@
                         <Select
                             name="sort" id="filter_sort"
                             options={[
-                                { value: 'latest', name: 'Latest photos', default: true },
-                                { value: 'oldest', name: 'Oldest photos' },
+                                { value: 'latest', name: 'Latest photos', default: filterSort === defaultSort },
+                                { value: 'oldest', name: 'Oldest photos', default: filterSort === 'oldest' },
                             ]}
                             on:change={handleSortChange}
                             value={filterSort}
@@ -190,26 +239,43 @@
 
     <section class="photos__content">
         <div class="grid container">
-            <div class="photos__grid">
-                {#each Array(22 * 2) as _}
-                    <div class="photo shadow-photo">
-                        <a href="/country/location/photo-slug">
-                            <Image id="5a45ba18-7b78-48e0-a299-302b1ea9b77b" width={1200} height={800} alt="image" />
-                            <PostCard />
-                        </a>
-                    </div>
-                {/each}
-            </div>
-
-            <div class="controls grid">
-                <p class="controls__date">Last updated: 4 days ago</p>
-                <Button text="See more photos" tag="button" on:click={loadMorePhotos} />
-                <div class="controls__count">
-                    <span class="current">21</span>
-                    <span>/</span>
-                    <span class="total">129</span>
+            {#if photos}
+                <div class="photos__grid">
+                    {#each photos as { image, slug, location }}
+                        <div class="photo shadow-photo">
+                            <a href="/{location.country.slug}/{location.slug}/{slug}">
+                                <Image id={image.id} width={1200} height={800} alt={image.title} />
+                                <PostCard />
+                            </a>
+                        </div>
+                    {/each}
                 </div>
-            </div>
+
+                <div class="controls grid">
+                    <p class="controls__date" title={dayjs(lastUpdated).format('DD/MM/YYYY, hh:mm')}>
+                        Last updated: <time datetime={dayjs(lastUpdated).format('YYYY-MM-DD')}>{dayjs().to(dayjs(lastUpdated))}</time>
+                    </p>
+
+                    <Button
+                        text={!ended ? 'See more photos' : "You've seen it all!"}
+                        tag="button"
+                        on:click={loadMorePhotos}
+                        disabled={ended}
+                    />
+
+                    <div class="controls__count">
+                        <span class="current">{currentPhotosAmount}</span>
+                        <span>/</span>
+                        <span class="total">{totalPhotos}</span>
+                    </div>
+                </div>
+            {:else if !filteredCountryExists}
+                <div class="photos__message">
+                    <p>
+                        <strong>{$page.query.get('country').replace(/(^|\s)\S/g, letter => letter.toUpperCase())}</strong> is not available… yet 👀
+                    </p>
+                </div>
+            {/if}
 
             <div class="grid-modules">
                 <div class="wrap">
@@ -226,14 +292,48 @@
     import { fetchAPI } from '$utils/api'
 
     export async function load ({ page, session, fetch, context }) {
-        // TODO: Implement query parameters from URL (country, sort)
+        // Query parameters
+        const queryCountry = page.query.get('country')
+        const querySort = page.query.get('sort')
+
         const res = await fetchAPI(`
             query {
-                photo (limit: 11, sort: ["-date_created"]) {
+                photos: photo (
+                    filter: {
+                        ${queryCountry ? `location: { country: { slug: { _eq: "${queryCountry}" }} },` : ''}
+                        status: { _eq: "published" },
+                    },
+                    sort: "${querySort === 'latest' ? '-' : ''}date_created",
+                    limit: ${import.meta.env.VITE_GRID_AMOUNT},
+                    page: 1,
+                ) {
+                    title
+                    slug
                     image {
                         id
                         title
                     }
+                    location {
+                        slug
+                        country { slug }
+                    }
+                }
+
+                total_published: photo_aggregated {
+                    count { id }
+                }
+
+                country: country (
+                    filter: {
+                        slug: { _eq: "${queryCountry}" },
+                        status: { _eq: "published" },
+                    },
+                ) {
+                    slug
+                }
+
+                lastUpdated: photo (limit: 1, sort: "-date_created", filter: { status: { _eq: "published" }}) {
+                    date_created
                 }
             }
         `)
@@ -242,7 +342,10 @@
 
         return {
             props: {
-                photos: data.photo,
+                photos: data.photos,
+                filteredCountryExists: data.country.length > 0,
+                totalPhotos: data.total_published[0].count.id,
+                lastUpdated: data.lastUpdated[0].date_created,
             }
         }
     }
diff --git a/src/style/pages/_photos.scss b/src/style/pages/_photos.scss
index 5556881..02ced93 100644
--- a/src/style/pages/_photos.scss
+++ b/src/style/pages/_photos.scss
@@ -324,6 +324,20 @@
         }
     }
 
+
+    // Message
+    &__message {
+        // grid-column: ;
+        text-align: center;
+        padding: clamp(48px, 10vw, 160px) 0;
+        color: $color-text;
+
+        @include bp (sm) {
+            grid-column: 3 / span 20;
+        }
+    }
+
+
     /**
      * Controls
      */
@@ -361,12 +375,14 @@
 
         // See More Photos
         .button {
+            $color-button: #F2D3B8;
             grid-column: span var(--columns);
             grid-row: 1;
             margin: 0 auto;
             height: 56px;
-            background-color: #F2D3B8;
+            background-color: $color-button;
             font-size: rem(16px);
+            border: none;
 
             @include bp (sm) {
                 grid-column: 6 / span 12;
@@ -374,6 +390,11 @@
                 padding: 0 40px;
                 font-size: rem(18px);
             }
+
+            &[disabled] {
+                background: none;
+                border: 2px solid darken($color-button, 2);
+            }
         }
 
         // Photo Count