Load datasets + Datasets grid + Datasets search (#889)

* [examples/openspending][m] - added loader + fetching from datapackage

- Also added an indexing example

* [examples/openspending,home][xl]: removes datasets table, implement dataset cards grid, implement country facet

* [examples/openspending,home][m]: add min date and max date facets

---------

Co-authored-by: Luccas Mateus de Medeiros Gomes <luccasmmg@gmail.com>

examples/openspending/components/Button.tsx

@@ -1,15 +1,15 @@
-import Link from 'next/link'
-import clsx from 'clsx'
+import Link from 'next/link';
+import clsx from 'clsx';
 
-export function Button({ href, className = "", ...props }) {
+export function Button({ href, className = '', ...props }) {
   className = clsx(
     'inline-flex justify-center rounded-2xl bg-emerald-600 p-4 text-base font-semibold text-white hover:bg-emerald-500 focus:outline-none focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-emerald-500 active:text-white/70',
     className
-  )
+  );
 
   return href ? (
-    <Link href={href} className={className} {...props} />
+    <Link scroll={false} href={href} className={className} {...props} />
   ) : (
     <button className={className} {...props} />
-  )
+  );
 }

examples/openspending/components/DatasetCard.tsx

@@ -0,0 +1,76 @@
+import Link from 'next/link';
+import { Project } from '../lib/project.interface';
+import ExternalLinkIcon from './icons/ExternalLinkIcon';
+
+export default function DatasetCard({ dataset }: { dataset: Project }) {
+  return (
+    <div
+      key={dataset.name}
+      className="overflow-hidden rounded-xl border border-gray-200"
+    >
+      <Link
+        href=""
+        className="flex items-center gap-x-4 border-b border-gray-900/5 bg-gray-50 p-6"
+      >
+        <img
+          src={dataset.owner.logo || '/assets/org-icon.svg'}
+          alt={dataset.owner.name}
+          className="h-12 w-12 flex-none rounded-lg bg-white object-cover ring-1 ring-gray-900/10 p-2"
+        />
+        <div className="text-sm font-medium leading-6">
+          <div className="text-gray-900 line-clamp-1">{dataset.title}</div>
+          <div className="text-gray-500 line-clamp-1">
+            {dataset.owner.title}
+          </div>
+        </div>
+      </Link>
+      <dl className="-my-3 divide-y divide-gray-100 px-6 py-4 text-sm leading-6">
+        <div className="flex justify-between gap-x-4 py-3">
+          <dt className="text-gray-500">Name</dt>
+          <dd className="flex items-start gap-x-2">
+            <div className="font-medium text-gray-900 line-clamp-1">
+              {dataset.name}
+            </div>
+          </dd>
+        </div>
+        <div className="flex justify-between gap-x-4 py-3">
+          <dt className="text-gray-500">Country</dt>
+          <dd className="flex items-start gap-x-2">
+            <div className="font-medium text-gray-900">
+              {dataset.countryCode}
+            </div>
+          </dd>
+        </div>
+        <div className="flex justify-between gap-x-4 py-3">
+          <dt className="text-gray-500">Fiscal Period</dt>
+          <dd className="text-gray-700">
+            {dataset.fiscalPeriod?.start &&
+              new Date(dataset.fiscalPeriod.start).getFullYear()}
+            {dataset.fiscalPeriod?.end &&
+              dataset.fiscalPeriod?.start !== dataset.fiscalPeriod?.end && (
+                <>
+                  {' - '}
+                  {new Date(dataset.fiscalPeriod.end).getFullYear()}
+                </>
+              )}
+          </dd>
+        </div>
+        <div className="flex justify-between gap-x-4 py-3">
+          <dt className="text-gray-500">Metadata</dt>
+          <dd className="flex items-start gap-x-2">
+            <div className="font-medium text-gray-900">
+              <Link
+                // TODO: where do we get the info needed for this link?
+                href=""
+                target="_blank"
+                className="flex items-center hover:text-gray-700"
+              >
+                datapackage.json <ExternalLinkIcon className="ml-1" />
+              </Link>
+            </div>
+          </dd>
+        </div>
+      </dl>
+    </div>
+  );
+}

examples/openspending/components/DatasetsGrid.tsx

@@ -0,0 +1,19 @@
+import { Project } from '../lib/project.interface';
+import DatasetCard from './DatasetCard';
+
+export default function DatasetsGrid({ datasets }: { datasets: Project[] }) {
+  return (
+    <ul
+      className="grid gap-x-6 gap-y-8 grid-cols-1 sm:grid-cols-2 md:grid-cols-3"
+      role="list"
+    >
+      {datasets.map((dataset, idx) => {
+        return (
+          <li key={`datasets-grid-item-${idx}`}>
+            <DatasetCard dataset={dataset} />
+          </li>
+        );
+      })}
+    </ul>
+  );
+}

examples/openspending/components/DatasetsSearch.tsx

@@ -0,0 +1,163 @@
+import { useForm } from 'react-hook-form';
+import DatasetsGrid from './DatasetsGrid';
+import { Project } from '../lib/project.interface';
+import { Index } from 'flexsearch';
+
+export default function DatasetsSearch({ datasets }: { datasets: Project[] }) {
+  const index = new Index({ tokenize: 'full' });
+  datasets.forEach((dataset: Project) =>
+    index.add(
+      dataset.name,
+      `${dataset.repo} ${dataset.name} ${dataset.title} ${dataset.author} ${dataset.title} ${dataset.cityCode} ${dataset.fiscalPeriod?.start} ${dataset.fiscalPeriod?.end}`
+    )
+  );
+
+  const { register, watch, handleSubmit, reset, resetField } = useForm({
+    defaultValues: {
+      searchTerm: '',
+      country: '',
+      minDate: '',
+      maxDate: '',
+    },
+  });
+
+  const allCountries = datasets
+    .map((item) => item.countryCode)
+    .filter((v) => v) //  Filters false values
+    .filter((v, i, a) => a.indexOf(v) === i) //  Remove duplicates
+    //  TODO: title should be the full name
+    .map((code) => ({ code, title: code }));
+
+  return (
+    <>
+      <div className="flex flex-col gap-3 sm:flex-row">
+        <div className="min-w-0 flex-auto">
+          <br />
+          <div className="relative">
+            <input
+              placeholder="Search datasets"
+              aria-label="Search datasets"
+              {...register('searchTerm')}
+              className="h-[3em] relative w-full rounded-lg bg-white py-2 pl-3 pr-10 text-left shadow-md focus:outline-none focus-visible:border-emerald-500 focus-visible:ring-2 focus-visible:ring-white focus-visible:ring-opacity-75 focus-visible:ring-offset-2 focus-visible:ring-offset-emerald-400 sm:text-sm"
+            />
+            {watch().searchTerm !== '' && (
+              <button
+                onClick={() => resetField('searchTerm')}
+                className="absolute right-3 top-1/2 -translate-y-1/2 text-gray-500"
+              >
+                <CloseIcon />
+              </button>
+            )}
+          </div>
+        </div>
+        <div className="sm:basis-1/6">
+          {/* TODO: nicer select e.g. headlessui example */}
+          <label className="text-sm text-gray-600 font-medium">Country</label>
+          <select
+            className="h-[3em] w-full rounded-lg bg-white py-2 pl-3 pr-10 text-left shadow-md focus:outline-none focus-visible:border-emerald-500 focus-visible:ring-2 focus-visible:ring-white focus-visible:ring-opacity-75 focus-visible:ring-offset-2 focus-visible:ring-offset-emerald-400 sm:text-sm"
+            {...register('country')}
+          >
+            <option value="">All</option>
+            {allCountries.map((country) => {
+              return (
+                <option key={country.code} value={country.code}>
+                  {country.title}
+                </option>
+              );
+            })}
+          </select>
+        </div>
+        <div className="sm:basis-1/6">
+          <label className="text-sm text-gray-600 font-medium">Min. date</label>
+          <div className="relative">
+            <input
+              aria-label="Min. date"
+              type="date"
+              {...register('minDate')}
+              className="h-[3em] w-full rounded-lg bg-white py-2 pl-3 pr-10 text-left shadow-md focus:outline-none focus-visible:border-emerald-500 focus-visible:ring-2 focus-visible:ring-white focus-visible:ring-opacity-75 focus-visible:ring-offset-2 focus-visible:ring-offset-emerald-400 sm:text-sm"
+            />
+            {watch().minDate !== '' && (
+              <button
+                onClick={() => resetField('minDate')}
+                className="absolute right-3 top-1/2 -translate-y-1/2 text-gray-500"
+              >
+                <CloseIcon />
+              </button>
+            )}
+          </div>
+        </div>
+        <div className="sm:basis-1/6">
+          <label className="text-sm text-gray-600 font-medium">Max. date</label>
+          <div className="relative">
+            <input
+              aria-label="Max. date"
+              type="date"
+              {...register('maxDate')}
+              className="h-[3em] w-full rounded-lg bg-white py-2 pl-3 pr-10 text-left shadow-md focus:outline-none focus-visible:border-emerald-500 focus-visible:ring-2 focus-visible:ring-white focus-visible:ring-opacity-75 focus-visible:ring-offset-2 focus-visible:ring-offset-emerald-400 sm:text-sm"
+            />
+            {watch().maxDate !== '' && (
+              <button
+                onClick={() => resetField('maxDate')}
+                className="absolute right-3 top-1/2 -translate-y-1/2 text-gray-500"
+              >
+                <CloseIcon />
+              </button>
+            )}
+          </div>
+        </div>
+      </div>
+      <div className="min-w-full mt-10 align-middle">
+        <DatasetsGrid
+          datasets={datasets
+            .filter((dataset: Project) =>
+              watch().searchTerm && watch().searchTerm !== ''
+                ? index.search(watch().searchTerm).includes(dataset.name)
+                : true
+            )
+            .filter((dataset) =>
+              watch().country && watch().country !== ''
+                ? dataset.countryCode === watch().country
+                : true
+            )
+            // TODO: Does that really makes sense?
+            // What if the fiscalPeriod is 2015-2017 and inputs are
+            // set to 2015-2016. It's going to be filtered out but
+            // it shouldn't.
+            .filter((dataset) =>
+              watch().minDate && watch().minDate !== ''
+                ? dataset.fiscalPeriod?.start >= watch().minDate
+                : true
+            )
+            .filter((dataset) =>
+              watch().maxDate && watch().maxDate !== ''
+                ? dataset.fiscalPeriod?.end <= watch().maxDate
+                : true
+            )}
+        />
+      </div>
+    </>
+  );
+}
+
+const CloseIcon = () => {
+  return (
+    <svg
+      width={20}
+      height={20}
+      viewBox="0 0 24 24"
+      fill="none"
+      xmlns="http://www.w3.org/2000/svg"
+    >
+      <g id="Menu / Close_MD">
+        <path
+          id="Vector"
+          d="M18 18L12 12M12 12L6 6M12 12L18 6M12 12L6 18"
+          stroke="currentColor"
+          stroke-width="2"
+          stroke-linecap="round"
+          stroke-linejoin="round"
+        />
+      </g>
+    </svg>
+  );
+};

examples/openspending/components/Header.tsx

@@ -46,7 +46,6 @@ export function Header() {
             </li>))}
         </ul>
         <div className="hidden sm:mt-10 sm:flex lg:mt-0 lg:grow lg:basis-0 lg:justify-end">
-          <Button href="#">View on GitHub</Button>
         </div>
       </Container>
     </header >

examples/openspending/components/Hero.tsx

@@ -23,8 +23,8 @@ export function Hero() {
               fiscal data in the public sphere.
             </p>
           </div>
-          <Button href="#" className="mt-10 w-full sm:hidden">
-            View on GitHub
+          <Button href="#datasets" className="mt-10">
+            Search datasets
           </Button>
           <dl className="mt-10 grid grid-cols-2 gap-x-10 gap-y-6 sm:mt-16 sm:gap-x-16 sm:gap-y-10 sm:text-center lg:auto-cols-auto lg:grid-flow-col lg:grid-cols-none lg:justify-start lg:text-left">
             {[