<?php
/**
 * The "Upgrade to Pro" screen.
 *
 * WHY THIS IS A PAGE AND NOT A REDIRECT
 * ------------------------------------------------------------------
 * It used to be a redirect, and every destination it could pick was wrong.
 *
 *  - `airanksuite_fs()->get_upgrade_url()` and `get_account_url()` return
 *    `admin.php?page=ai-rank-suite-pricing` / `-account`. The SDK registers
 *    neither page until the customer has opted in AND registered
 *    (Freemius::add_submenu_items() gates the account page on is_registered()
 *    and the pricing page on the `pricing` menu flag we deliberately switch
 *    off). On a fresh free install both slugs are unregistered, and WordPress
 *    answers an unregistered admin page by sending the visitor to the
 *    dashboard.
 *  - The fallback was `https://airanksuite.com/pricing` through
 *    wp_safe_redirect(), which refuses any host that is not this site and
 *    substitutes admin_url() — the dashboard again.
 *
 * So every path out of "Upgrade to Pro" landed on the WordPress dashboard,
 * which reads exactly like a plugin that takes your money and does nothing.
 *
 * A page has no such failure mode: it renders what it has to say, and the one
 * link that leaves the site is an ordinary anchor the browser follows.
 *
 * @package AiRankSuite
 */

declare(strict_types=1);

namespace AiRankSuite\Modules\Core;

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

final class UpgradeScreen {

	/** Menu slug. Free edition only — the Pro build never registers it. */
	public const SLUG = 'ai-rank-suite-upgrade';

	/** Freemius plan id. Public information; it is in the checkout URL. */
	private const PLAN_ID = 63286;

	/** Launch coupon, and the day it stops being true. */
	private const COUPON      = 'GETNOW30';
	private const COUPON_ENDS = '2026-09-30';

	/** Where this screen lives. */
	public static function url(): string {
		return admin_url( 'admin.php?page=' . self::SLUG );
	}

	/**
	 * Where the buy button goes, and whether that leaves WordPress.
	 *
	 * Freemius' own in-admin checkout is preferred when it exists, because a
	 * purchase made there activates the licence on this site by itself. It
	 * only exists once the SDK has registered its pricing page, so the answer
	 * is computed while the page renders — at that point $_registered_pages is
	 * complete and the question can be answered truthfully rather than
	 * guessed.
	 *
	 * @return array{0:string,1:bool} URL, and true when it is off-site.
	 */
	public static function checkout(): array {
		if ( function_exists( 'airanksuite_fs' ) && null !== airanksuite_fs() && method_exists( airanksuite_fs(), 'checkout_url' ) ) {
			$url = (string) airanksuite_fs()->checkout_url();
			if ( '' !== $url && self::page_exists( self::page_of( $url ) ) ) {
				return array( $url, false );
			}
		}

		$id = defined( 'AIRANKSUITE_FS_ID' ) && is_numeric( AIRANKSUITE_FS_ID ) ? (int) AIRANKSUITE_FS_ID : 0;

		// A development build has no product id, so there is no checkout to
		// send anyone to. The public pricing page is the honest destination.
		if ( $id <= 0 ) {
			return array( 'https://airanksuite.com/pricing', true );
		}

		$url = sprintf( 'https://checkout.freemius.com/plugin/%d/plan/%d/', $id, self::PLAN_ID );

		if ( self::coupon_live() ) {
			$url = add_query_arg( 'coupon', self::COUPON, $url );
		}

		/**
		 * Filter the destination of the buy button.
		 *
		 * @param string $url Checkout URL.
		 */
		return array( (string) apply_filters( 'airanksuite/upgrade_url', $url ), true );
	}

	/** Is the launch discount still running? */
	private static function coupon_live(): bool {
		return time() < (int) strtotime( self::COUPON_ENDS . ' 23:59:59 UTC' );
	}

	/**
	 * Where somebody who already paid activates their key.
	 *
	 * `get_activation_url()` resolves to the menu slug handed to the SDK in
	 * freemius.php, which this plugin registers itself — so unlike the account
	 * and pricing slugs, it is always a page that exists.
	 */
	public static function activation_url(): string {
		if ( function_exists( 'airanksuite_fs' ) && null !== airanksuite_fs() && method_exists( airanksuite_fs(), 'get_activation_url' ) ) {
			$url = (string) airanksuite_fs()->get_activation_url();
			if ( '' !== $url && self::page_exists( self::page_of( $url ) ) ) {
				return $url;
			}
		}

		return admin_url( 'admin.php?page=ai-rank-suite-settings#/settings/license' );
	}

	/** The `page` query arg of an admin URL, or '' when there is none. */
	public static function page_of( string $url ): string {
		$query = (string) wp_parse_url( $url, PHP_URL_QUERY );
		if ( '' === $query ) {
			return '';
		}
		parse_str( $query, $args );
		return isset( $args['page'] ) ? sanitize_key( (string) $args['page'] ) : '';
	}

	/**
	 * Has some plugin actually registered this admin page?
	 *
	 * `$_registered_pages` is the list add_submenu_page() writes to and the
	 * list admin.php checks before rendering. Asking it is the only way to
	 * know that a link leads somewhere rather than to the dashboard.
	 */
	public static function page_exists( string $page ): bool {
		if ( '' === $page ) {
			return false;
		}
		global $_registered_pages;
		if ( ! is_array( $_registered_pages ) ) {
			return false;
		}
		foreach ( array_keys( $_registered_pages ) as $hook ) {
			if ( str_ends_with( (string) $hook, '_page_' . $page ) ) {
				return true;
			}
		}
		return false;
	}

	/** What the free edition already does, in the buyer's words. */
	private static function free_features(): array {
		return array(
			__( 'Titles, descriptions and schema for every post type', 'ai-rank-suite' ),
			__( 'Sitemap, llms.txt and the crawl rules for AI assistants', 'ai-rank-suite' ),
			__( 'Site audit, redirects and the 404 log', 'ai-rank-suite' ),
			__( 'Imports from 14 other SEO plugins, including Rank Math and Yoast', 'ai-rank-suite' ),
		);
	}

	/** What paying adds. One line per Pro module, no invented capabilities. */
	private static function pro_features(): array {
		return array(
			__( 'Everything in the free edition', 'ai-rank-suite' ),
			__( 'AI visibility: ask ChatGPT, Claude, Gemini, Perplexity and Mistral the questions your buyers ask, and see who gets named', 'ai-rank-suite' ),
			__( 'Rank tracking for up to 100 keywords, long and short mixed', 'ai-rank-suite' ),
			__( 'Bulk descriptions and FAQ, written on your own API key at your provider\'s list price', 'ai-rank-suite' ),
			__( 'Autopilot: it fixes what the audit finds, and every change can be undone', 'ai-rank-suite' ),
			__( 'Internal links, broken-link checker, backlinks and scheduled reports', 'ai-rank-suite' ),
		);
	}

	/**
	 * Render the screen.
	 *
	 * Self-contained: no bundle, no stylesheet, no external asset. This page
	 * has to paint correctly on an install where something else is broken,
	 * because it is the page a customer reaches when they want to pay.
	 */
	public static function render(): void {
		if ( ! current_user_can( 'manage_options' ) ) {
			wp_die( esc_html__( 'You cannot see this page.', 'ai-rank-suite' ), '', array( 'response' => 403 ) );
		}

		list( $checkout, $external ) = self::checkout();
		$target                      = $external ? ' target="_blank" rel="noopener"' : '';

		echo '<div class="wrap airanksuite-upgrade">';
		echo '<h1 class="screen-reader-text">' . esc_html__( 'Upgrade to Pro', 'ai-rank-suite' ) . '</h1>';

		/*
		 * The hero says what the product is for before it says what it costs.
		 * The panel on the right is the product's whole idea in one picture —
		 * one question, five assistants, and only some of them name you.
		 */
		echo '<div class="au-hero">';
		echo '<div class="au-hero-copy">';
		echo '<span class="au-eyebrow">AI Rank Suite Pro</span>';
		echo '<h2>' . esc_html__( 'See which assistants name you — and fix the pages that stop them.', 'ai-rank-suite' ) . '</h2>';
		echo '<p>' . esc_html__( 'The free edition prepares your site for AI search. Pro measures whether it worked: it asks the assistants your customers ask, tracks what changes, and does the repetitive fixing for you.', 'ai-rank-suite' ) . '</p>';
		echo '<div class="au-cta-row">';
		echo '<a class="au-btn" href="' . esc_url( $checkout ) . '"' . $target . '>' // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- literal attribute built above.
			. esc_html__( 'Get Pro', 'ai-rank-suite' ) . ' &mdash; $99<span>' . esc_html__( '/year', 'ai-rank-suite' ) . '</span></a>';
		echo '<a class="au-ghost" href="' . esc_url( self::activation_url() ) . '">' . esc_html__( 'I already have a licence key', 'ai-rank-suite' ) . '</a>';
		echo '</div>';
		echo '<p class="au-trust">'
			. '<span>' . esc_html__( '14-day money back', 'ai-rank-suite' ) . '</span>'
			. '<span>' . esc_html__( 'Your own API key, no markup', 'ai-rank-suite' ) . '</span>'
			. '<span>' . esc_html__( 'Cancel any time', 'ai-rank-suite' ) . '</span>'
			. '</p>';
		echo '</div>';

		echo '<div class="au-hero-art" aria-hidden="true">';
		echo '<div class="au-ask">&ldquo;' . esc_html__( 'Who should I hire for this in my city?', 'ai-rank-suite' ) . '&rdquo;</div>';
		foreach ( array(
			array( 'ChatGPT', true ),
			array( 'Claude', false ),
			array( 'Gemini', true ),
			array( 'Perplexity', false ),
			array( 'Mistral', false ),
		) as $row ) {
			echo '<div class="au-row' . ( $row[1] ? ' is-yes' : '' ) . '">'
				. '<span class="au-row-name">' . esc_html( $row[0] ) . '</span>'
				. '<span class="au-row-verdict">' . ( $row[1] ? esc_html__( 'names you', 'ai-rank-suite' ) : esc_html__( 'does not', 'ai-rank-suite' ) ) . '</span>'
				. '</div>';
		}
		echo '</div>';
		echo '</div>';

		echo '<h2 class="au-h2">' . esc_html__( 'What each plan includes', 'ai-rank-suite' ) . '</h2>';
		echo '<div class="airanksuite-up-grid">';

		// --- free -----------------------------------------------------------
		echo '<div class="airanksuite-up-card">';
		echo '<span class="airanksuite-up-tag">' . esc_html__( 'Your plan', 'ai-rank-suite' ) . '</span>';
		echo '<h3>' . esc_html__( 'Free', 'ai-rank-suite' ) . '</h3>';
		echo '<p class="airanksuite-up-price">$0<span>' . esc_html__( 'installed and running', 'ai-rank-suite' ) . '</span></p>';
		echo '<ul>';
		foreach ( self::free_features() as $line ) {
			echo '<li>' . esc_html( $line ) . '</li>';
		}
		echo '</ul>';
		echo '</div>';

		// --- pro ------------------------------------------------------------
		echo '<div class="airanksuite-up-card is-pro">';
		echo '<span class="airanksuite-up-tag is-pro">' . esc_html__( 'Recommended', 'ai-rank-suite' ) . '</span>';
		echo '<h3>' . esc_html__( 'Pro', 'ai-rank-suite' ) . '</h3>';
		echo '<p class="airanksuite-up-price">$99<span>' . esc_html__( 'a year, one site', 'ai-rank-suite' ) . '</span></p>';
		echo '<ul>';
		foreach ( self::pro_features() as $line ) {
			echo '<li>' . esc_html( $line ) . '</li>';
		}
		echo '</ul>';
		echo '<a class="au-btn is-block" href="' . esc_url( $checkout ) . '"' . $target . '>' // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped -- literal attribute built above.
			. esc_html__( 'Get Pro', 'ai-rank-suite' ) . '</a>';
		echo '</div>';

		// --- agency ---------------------------------------------------------
		echo '<div class="airanksuite-up-card">';
		echo '<span class="airanksuite-up-tag">' . esc_html__( 'For agencies', 'ai-rank-suite' ) . '</span>';
		echo '<h3>' . esc_html__( 'Agency', 'ai-rank-suite' ) . '</h3>';
		echo '<p class="airanksuite-up-price">$199<span>' . esc_html__( 'a year, unlimited sites', 'ai-rank-suite' ) . '</span></p>';
		echo '<ul><li>' . esc_html__( 'Every Pro feature, on every client site you run. The plans differ in the number of sites, never in what the plugin can do.', 'ai-rank-suite' ) . '</li>';
		echo '<li>' . esc_html__( 'Choose the number of sites in the same checkout.', 'ai-rank-suite' ) . '</li></ul>';
		echo '</div>';

		echo '</div>'; // grid

		if ( self::coupon_live() ) {
			echo '<p class="airanksuite-up-note">'
				. sprintf(
					/* translators: 1: coupon code, 2: end date. */
					esc_html__( 'Launch offer: 30%% off the first year with code %1$s, filled in at checkout, until %2$s.', 'ai-rank-suite' ),
					'<b>' . esc_html( self::COUPON ) . '</b>',
					esc_html( date_i18n( (string) get_option( 'date_format' ), (int) strtotime( self::COUPON_ENDS ) ) )
				)
				. '</p>';
		}

		echo '<p class="airanksuite-up-links">';
		echo '<a href="https://airanksuite.com/pricing" target="_blank" rel="noopener">' . esc_html__( 'Full comparison on the website', 'ai-rank-suite' ) . ' &nearr;</a>';
		echo '</p>';

		echo '</div>'; // wrap
	}

	/**
	 * Inline, because this page must render with nothing else loaded.
	 *
	 * The palette, the type and the shapes are the website's, not WordPress'.
	 * This is the one screen in the plugin whose job is to sell, and a screen
	 * that sells should look like the thing it is selling: same violet, same
	 * near-black, same DM Sans, same 18px card radius as airanksuite.com. The
	 * font is bundled (SIL OFL) rather than fetched — a wp-admin screen has no
	 * business calling a font host.
	 */
	public static function enqueue( string $hook ): void {
		if ( ! str_ends_with( $hook, '_page_' . self::SLUG ) ) {
			return;
		}
		$fonts = AIRANKSUITE_URL . 'assets/fonts/';
		$css   = '
@font-face{font-family:"AI Rank Suite DM Sans";font-style:normal;font-weight:100 1000;font-display:swap;
	src:url(' . esc_url( $fonts . 'dmsans-latin.woff2' ) . ') format("woff2");
	unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"AI Rank Suite DM Sans";font-style:normal;font-weight:100 1000;font-display:swap;
	src:url(' . esc_url( $fonts . 'dmsans-latin-ext.woff2' ) . ') format("woff2");
	unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}

.airanksuite-upgrade{
	--au-brand:#6753ff; --au-brand-2:#8b7bff; --au-brand-h:#5240e0;
	--au-ink:#0e1116; --au-ink2:#4a5361; --au-ink3:#77808d;
	--au-line:#e2e2ef; --au-alt:#f0f0fa;
	--au-dark:#0b0e14; --au-dark2:#141926; --au-dark-ink:#e8ecf3; --au-dark-ink2:#98a3b5;
	--au-good:#12a150;
	--au-r:18px; --au-r-sm:10px;
	max-width:1160px;
	font-family:"AI Rank Suite DM Sans",-apple-system,system-ui,Roboto,"Helvetica Neue",Arial,sans-serif;
	color:var(--au-ink);
	-webkit-font-smoothing:antialiased}
.airanksuite-upgrade *{box-sizing:border-box}
.airanksuite-upgrade h2,.airanksuite-upgrade h3{letter-spacing:-.025em;line-height:1.12;margin:0}

/* The hero, with the website\'s own violet bloom in the top-left corner. */
.airanksuite-upgrade .au-hero{
	position:relative;overflow:hidden;
	display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.95fr);gap:38px;align-items:center;
	margin:16px 0 40px;padding:40px;border-radius:var(--au-r);
	background:var(--au-dark);color:var(--au-dark-ink);
	box-shadow:0 24px 60px -12px rgba(14,17,22,.28),0 8px 20px -8px rgba(14,17,22,.16)}
.airanksuite-upgrade .au-hero:before{content:"";position:absolute;inset:-30% -10% auto -10%;height:120%;
	pointer-events:none;
	background:radial-gradient(60% 55% at 22% 8%,rgba(103,83,255,.34),transparent 62%),
		radial-gradient(50% 45% at 88% 12%,rgba(139,123,255,.16),transparent 60%)}
.airanksuite-upgrade .au-hero > *{position:relative}
.airanksuite-upgrade .au-eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
	text-transform:uppercase;color:var(--au-brand-2);margin-bottom:14px}
.airanksuite-upgrade .au-hero h2{font-size:clamp(27px,3.1vw,40px);font-weight:760;letter-spacing:-.035em;
	color:#fff;margin-bottom:14px}
.airanksuite-upgrade .au-hero p{margin:0;font-size:16.5px;line-height:1.65;color:var(--au-dark-ink2);max-width:52ch}
.airanksuite-upgrade .au-cta-row{display:flex;flex-wrap:wrap;align-items:center;gap:18px;margin:26px 0 0}
.airanksuite-upgrade .au-btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
	min-height:54px;padding:0 28px;border-radius:6px;border:1px solid transparent;
	background:var(--au-brand);color:#fff;font-size:16.5px;font-weight:620;text-decoration:none;
	box-shadow:0 4px 14px -3px rgba(103,83,255,.5),0 10px 34px -12px rgba(103,83,255,.42);
	transition:transform .18s ease,box-shadow .18s ease,background .18s ease}
.airanksuite-upgrade .au-btn span{font-weight:500;opacity:.8}
.airanksuite-upgrade .au-btn:hover,.airanksuite-upgrade .au-btn:focus{background:var(--au-brand-h);color:#fff;
	transform:translateY(-2px);box-shadow:0 10px 26px -6px rgba(103,83,255,.55)}
.airanksuite-upgrade .au-btn.is-block{display:flex;width:100%;margin-top:20px;min-height:46px;font-size:15px}
.airanksuite-upgrade .au-ghost{color:var(--au-dark-ink);font-size:15px;text-decoration:none;
	border-bottom:1px solid rgba(232,236,243,.3);padding-bottom:2px}
.airanksuite-upgrade .au-ghost:hover{color:#fff;border-bottom-color:#fff}
.airanksuite-upgrade .au-trust{display:flex;flex-wrap:wrap;gap:10px 24px;margin:22px 0 0;font-size:13.5px;
	color:var(--au-dark-ink2)}
.airanksuite-upgrade .au-trust span{position:relative;padding-left:18px}
.airanksuite-upgrade .au-trust span:before{content:"";position:absolute;left:2px;top:6px;width:4px;height:9px;
	border:solid var(--au-good);border-width:0 2px 2px 0;transform:rotate(45deg)}

/* The panel: the same dark card the website uses inside a dark section. */
.airanksuite-upgrade .au-hero-art{background:var(--au-dark2);border:1px solid rgba(255,255,255,.07);
	border-radius:14px;padding:18px}
.airanksuite-upgrade .au-ask{font-size:14px;line-height:1.5;color:var(--au-dark-ink);font-style:italic;
	margin-bottom:14px}
.airanksuite-upgrade .au-row{display:flex;align-items:center;justify-content:space-between;gap:12px;
	padding:10px 12px;border-radius:var(--au-r-sm);background:rgba(255,255,255,.04);margin-bottom:7px}
.airanksuite-upgrade .au-row:last-child{margin-bottom:0}
.airanksuite-upgrade .au-row-name{font-size:14px;font-weight:620;color:#fff}
.airanksuite-upgrade .au-row-verdict{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
	color:#f08a84}
.airanksuite-upgrade .au-row.is-yes{background:rgba(18,161,80,.16)}
.airanksuite-upgrade .au-row.is-yes .au-row-verdict{color:#4fd08a}

.airanksuite-upgrade .au-h2{font-size:19px;font-weight:680;letter-spacing:-.015em;margin:0 0 16px;color:var(--au-ink)}
.airanksuite-upgrade .airanksuite-up-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
	align-items:stretch}
.airanksuite-upgrade .airanksuite-up-card{background:#fff;border:1px solid var(--au-line);border-radius:var(--au-r);
	padding:28px;display:flex;flex-direction:column;
	box-shadow:0 1px 2px rgba(14,17,22,.04),0 8px 24px rgba(14,17,22,.06)}
.airanksuite-upgrade .airanksuite-up-card.is-pro{border-color:transparent;
	box-shadow:0 0 0 2px var(--au-brand),0 12px 32px -12px rgba(60,33,171,.28)}
.airanksuite-upgrade .airanksuite-up-tag{align-self:flex-start;font-size:11px;font-weight:700;letter-spacing:.09em;
	text-transform:uppercase;color:var(--au-ink3);background:var(--au-alt);border-radius:999px;padding:5px 12px}
.airanksuite-upgrade .airanksuite-up-tag.is-pro{color:#fff;background:var(--au-brand)}
.airanksuite-upgrade .airanksuite-up-card h3{margin:16px 0 4px;font-size:19px;font-weight:680;letter-spacing:-.015em}
.airanksuite-upgrade .airanksuite-up-price{margin:0 0 18px;font-size:38px;font-weight:760;color:var(--au-ink);
	line-height:1.1;letter-spacing:-.035em}
.airanksuite-upgrade .airanksuite-up-price span{display:block;font-size:14px;font-weight:400;color:var(--au-ink3);
	margin-top:5px;letter-spacing:0}
.airanksuite-upgrade .airanksuite-up-card ul{margin:0;padding:0;list-style:none;flex:1}
.airanksuite-upgrade .airanksuite-up-card li{position:relative;padding:0 0 0 28px;margin:0 0 12px;font-size:14.5px;
	line-height:1.6;color:var(--au-ink2)}
.airanksuite-upgrade .airanksuite-up-card li:before{content:"";position:absolute;left:6px;top:7px;width:5px;height:10px;
	border:solid var(--au-brand);border-width:0 2px 2px 0;transform:rotate(45deg)}
.airanksuite-upgrade .airanksuite-up-card.is-pro li:before{border-color:var(--au-brand)}
.airanksuite-upgrade .airanksuite-up-note{margin:26px 0 0;font-size:14.5px;color:var(--au-ink2)}
.airanksuite-upgrade .airanksuite-up-note b{color:var(--au-brand);font-weight:700}
.airanksuite-upgrade .airanksuite-up-links{margin:10px 0 0;font-size:14.5px}
.airanksuite-upgrade .airanksuite-up-links a{color:var(--au-brand);text-decoration:none}
.airanksuite-upgrade .airanksuite-up-links a:hover{color:var(--au-brand-h);text-decoration:underline}

@media(max-width:900px){
	.airanksuite-upgrade .au-hero{grid-template-columns:1fr;padding:28px 24px;gap:26px}
}
';
		\AiRankSuite\Support\Inline::style( 'airanksuite-upgrade', $css );
	}
}