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Delta function instead of separate button management #250

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Delta function instead of separate button management #250

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67 changes: 53 additions & 14 deletions src/app/(public)/repos/_components/pagination.tsx
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Original file line number Diff line number Diff line change
@@ -1,6 +1,9 @@
'use client';

import { Button } from '@/app/(public)/_components/button';
import { ArrowLeft, ArrowRight } from 'lucide-react';
import Link from 'next/link';
import { ArrowLeft, ArrowRight, Loader2 } from 'lucide-react';
import { useRouter } from 'next/navigation';
import { useTransition } from 'react';
import type { SearchParams } from '@/types';

const MAX_PER_PAGE = 21;
Expand All @@ -15,24 +18,60 @@ export function Pagination({
totalCount,
searchParams
}: PaginationProps) {
const router = useRouter();
const [isPending, startTransition] = useTransition();

function changePage(delta: number) {
const params = new URLSearchParams(
Object.entries(searchParams).map(([k, v]) => [k, String(v)])
);
params.set('p', String(page + delta));

startTransition(() => {
router.push(`?${params.toString()}`);
});
}

return (
<div className="flex flex-col items-center gap-4 my-6 justify-evenly sm:gap-0 sm:flex-row">
{page > 1 && (
<Link href={{ query: { ...searchParams, p: page - 1 } }}>
<Button className="btn-wide hover:bg-primary-btn-hover-gradient hover:text-hacktoberfest-dark-green">
<ArrowLeft />
<span className="ml-2">Previous Page</span>
</Button>
</Link>
<Button
onClick={() => changePage(-1)}
disabled={isPending}
className="btn-wide hover:bg-primary-btn-hover-gradient hover:text-hacktoberfest-dark-green disabled:opacity-50 disabled:cursor-not-allowed"
>
{isPending ? (
<>
<Loader2 className="animate-spin" />
<span className="ml-2">Loading...</span>
</>
) : (
<>
<ArrowLeft />
<span className="ml-2">Previous Page</span>
</>
)}
</Button>
)}
{totalCount >= MAX_PER_PAGE &&
page < Math.ceil(totalCount / MAX_PER_PAGE) && (
<Link href={{ query: { ...searchParams, p: page + 1 } }}>
<Button className="btn-wide hover:bg-primary-btn-hover-gradient hover:text-hacktoberfest-dark-green">
<span className="mr-2">Next Page</span>
<ArrowRight />
</Button>
</Link>
<Button
onClick={() => changePage(1)}
disabled={isPending}
className="btn-wide hover:bg-primary-btn-hover-gradient hover:text-hacktoberfest-dark-green disabled:opacity-50 disabled:cursor-not-allowed"
>
{isPending ? (
<>
<span className="mr-2">Loading...</span>
<Loader2 className="animate-spin" />
</>
) : (
<>
<span className="mr-2">Next Page</span>
<ArrowRight />
</>
)}
</Button>
)}
</div>
);
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