74 lines
1.9 KiB
TypeScript
74 lines
1.9 KiB
TypeScript
'use client';
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import { useSyncExternalStore, type CSSProperties, type ReactNode } from 'react';
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import { useTranslations } from 'next-intl';
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import { detectOSFromUserAgent, type OSId } from '../_lib/os-detection';
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import { emit, events } from '../_lib/event-taxonomy';
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interface DownloadCTAProps {
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readonly variant?: 'primary' | 'ghost';
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readonly size?: 'default' | 'small';
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readonly section: 'hero' | 'navbar' | 'solo-tier' | 'final-cta';
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readonly children?: ReactNode;
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readonly style?: CSSProperties;
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}
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const DOWNLOAD_URL = '/download';
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const subscribeToClientEnvironment = () => () => {};
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const getClientOS = () => detectOSFromUserAgent(navigator.userAgent);
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const getServerOS = (): null => null;
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/**
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* OS-aware download CTA. Renders a generic "Download" label at SSR + first
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* paint, then swaps to "Download for {os}" after hydration via
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* `navigator.userAgent` detection.
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*
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* Styling comes from the shared `.btn` primitives in globals.css so every
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* download button on the page is pixel-identical. Strings live in
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* `messages/en.json` under `landing.download_cta.*` with an ICU placeholder
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* for the OS name.
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*/
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export default function DownloadCTA({
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variant = 'primary',
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size = 'default',
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section,
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children,
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style,
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}: DownloadCTAProps) {
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const t = useTranslations('landing.download_cta');
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const os = useSyncExternalStore<OSId | null>(
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subscribeToClientEnvironment,
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getClientOS,
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getServerOS,
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);
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const label = children ?? (os ? t('with_os', { os }) : t('default'));
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const className = [
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'btn',
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variant === 'primary' ? 'btn-primary' : 'btn-ghost',
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size === 'small' ? 'btn-small' : '',
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]
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.filter(Boolean)
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.join(' ');
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const handleClick = () => {
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emit({
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name: events.ctaClick,
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properties: { section, os: os ?? 'unknown' },
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});
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};
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return (
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<a
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href={DOWNLOAD_URL}
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className={className}
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onClick={handleClick}
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style={style}
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>
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{label}
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</a>
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);
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}
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