<?php

declare(strict_types=1);

namespace Sarcio\WordPress\Admin;

use Sarcio\WordPress\Account;
use Sarcio\WordPress\Admin\RequestsPage;
use Sarcio\WordPress\Assistant\Requests;
use Sarcio\WordPress\Brand;
use Sarcio\WordPress\InlineJson;
use Sarcio\WordPress\Assistant\Catalog;
use Sarcio\WordPress\Assistant\Routes;
use Sarcio\WordPress\Assistant\SiteAbilities;
use Sarcio\WordPress\Connect;
use Sarcio\WordPress\Embed;
use Sarcio\WordPress\Options;

final class AssistantPage
{
    public const SLUG = 'sarcio-assistant';

    private const SCRIPT = 'sarcio-assistant';

    public function register(): void
    {
        add_action('admin_enqueue_scripts', [$this, 'enqueue']);
    }

    public static function url(): string
    {
        return admin_url('admin.php?page=' . self::SLUG);
    }

    public function enqueue(string $hook): void
    {
        if (!str_ends_with($hook, '_page_' . self::SLUG)) {
            return;
        }
        wp_add_inline_style('common', Cards::styles());
        if (!$this->ready()) {
            return;
        }
        wp_add_inline_style('common', self::asset('css/assistant.css'));
        wp_register_script(self::SCRIPT, false, [], SARCIO_WP_VERSION, true);
        wp_enqueue_script(self::SCRIPT);
        wp_add_inline_script(self::SCRIPT, self::asset('js/assistant.js'));
        $user = wp_get_current_user();
        wp_add_inline_script(self::SCRIPT, 'var sarcioAssistant=' . InlineJson::encode([
            'ask' => isset($_GET['ask']) && is_string($_GET['ask']) ? mb_substr(sanitize_text_field(wp_unslash($_GET['ask'])), 0, 500) : '', // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- a suggested first message, only prefilled in the box.
            'adminUrl' => esc_url_raw(admin_url()),
            'brandColor' => Brand::color(),
            'frameUrl' => esc_url_raw(home_url('/')),
            'homeUrl' => esc_url_raw(home_url('/')),
            'loginUrl' => esc_url_raw(wp_login_url()),
            'previewTitle' => Brand::screen(__('preview', 'sarcio')),
            'timezone' => wp_timezone_string(),
            'canApply' => Requests::canApply() ? '1' : '',
            'requestsUrl' => RequestsPage::url(),
            'now' => wp_date('Y-m-d\TH:i'),
            'consents' => Catalog::consents(),
            'kinds' => Catalog::kinds(),
            'labels' => Catalog::labels(),
            'nonce' => wp_create_nonce('wp_rest'),
            'restUrl' => esc_url_raw(rest_url(Routes::NAMESPACE . '/assistant/')),
            'stageables' => Catalog::stageables(),
            'siteKey' => (string) Options::get('site_key'),
            'siteName' => Connect::siteName(),
            'strings' => self::strings(),
            'suggestions' => self::suggestions(),
            'userName' => (string) ($user->display_name ?? ''),
        ]) . ';', 'before');
    }

    /** The plugin's own bundled asset, printed inline so it works wherever the plugin is installed. */
    private static function asset(string $file): string
    {
        $path = dirname(__DIR__, 2) . '/assets/' . $file;
        if (!is_readable($path)) {
            return '';
        }
        // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents -- the plugin's own bundled file.
        $source = file_get_contents($path);
        return is_string($source) ? $source : '';
    }

    public function render(): void
    {
        if (!current_user_can(ReviewPage::CAPABILITY)) {
            return;
        }
        if ((string) Options::get('site_key') === '') {
            Cards::welcome();
            return;
        }
        $info = Embed::info();
        $newTab = Embed::workspaceUrl() ?? 'https://www.sarcio.io/app/';
        if (!Account::has(get_current_user_id())) {
            Cards::account(Brand::screen(__('Assistant', 'sarcio')), $info['workspaceName'] ?? '', $newTab, false);
            return;
        }
        $token = Account::accessToken(get_current_user_id());
        if (isset($token['reconnect'])) {
            Cards::account(Brand::screen(__('Assistant', 'sarcio')), $info['workspaceName'] ?? '', $newTab, true);
            return;
        }

        echo '<div class="wrap sarcio-assistant-wrap"><h1>' . wp_kses(Brand::logoTag(), Brand::ALLOWED_HTML) . esc_html(Brand::screen(__('Assistant', 'sarcio'))) . '</h1>';
        echo '<p class="description sarcio-assistant-intro">' . esc_html__('Ask for a change to your site in plain words. The assistant looks things up and lays each change over a preview of your site that only you can see. Apply when it looks right; every applied change can be undone from the list on the right.', 'sarcio') . '</p>';
        echo '<div id="sarcio-assistant" class="sarcio-assistant" data-ready="1">';
        echo '<noscript><p>' . esc_html__('The assistant needs JavaScript turned on.', 'sarcio') . '</p></noscript>';
        echo '</div></div>';
    }

    private function ready(): bool
    {
        return (string) Options::get('site_key') !== '' && Account::has(get_current_user_id());
    }

    /** @return array<int,string> */
    private static function suggestions(): array
    {
        $suggestions = [
            __('Change the phone number in the footer', 'sarcio'),
            __('Make the Contact page say we are closed on Mondays', 'sarcio'),
            __('Add an About link to the main menu', 'sarcio'),
            __('Make all the headings dark green', 'sarcio'),
        ];
        if (SiteAbilities::woocommerceActive()) {
            $suggestions[] = __('Add a 10% coupon for new customers', 'sarcio');
            $suggestions[] = __('Put the best-selling product on sale for a week', 'sarcio');
        }
        return $suggestions;
    }

    /** @return array<string,string> */
    private static function strings(): array
    {
        return [
            'apply' => __('Apply', 'sarcio'),
            'applyAll' => __('Apply changes', 'sarcio'),
            'applyNote' => __('Apply makes every previewed change on the live site, in order. Discard forgets them all.', 'sarcio'),
            'applied' => __('Applied', 'sarcio'),
            'schedule' => __('Schedule…', 'sarcio'),
            'sendRequest' => __('Send to my agency', 'sarcio'),
            'share' => __('Share for review', 'sarcio'),
            'shareNote' => __('Anyone with this link sees the preview as it is now, for a week, and can pin notes on any page. Ask the assistant what they said.', 'sarcio'),
            /* translators: %s: how many notes. */
            'shareNotes' => __('%s notes from reviewers so far', 'sarcio'),
            'copy' => __('Copy link', 'sarcio'),
            'someone' => __('Someone', 'sarcio'),
            'copied' => __('Copied', 'sarcio'),
            'requestTitle' => __('What is this change for?', 'sarcio'),
            'requestTitlePlaceholder' => __('For example: new opening hours for the holidays', 'sarcio'),
            'requestConfirm' => __('Send', 'sarcio'),
            'requestNote' => __('Your agency gets the preview exactly as you see it, applies it as it is or declines it, and you are emailed either way.', 'sarcio'),
            'requestSent' => __('Sent to your agency', 'sarcio'),
            'requested' => __('Requested', 'sarcio'),
            'requestsList' => __('Your requests', 'sarcio'),
            'noRequests' => __('Nothing has been sent yet.', 'sarcio'),
            'withdraw' => __('Withdraw', 'sarcio'),
            'openRequests' => __('Open requests', 'sarcio'),
            'requestStatus' => [
                'applied' => __('Applied', 'sarcio'),
                'applying' => __('Being applied', 'sarcio'),
                'declined' => __('Declined', 'sarcio'),
                'failed' => __('Could not be applied', 'sarcio'),
                'partial' => __('Partly applied', 'sarcio'),
                'pending' => __('Waiting for your agency', 'sarcio'),
                'withdrawn' => __('Withdrawn', 'sarcio'),
            ],
            'applyNoteRequest' => __('Your agency applies changes on this site. Send the preview and they will look at it.', 'sarcio'),
            'scheduleApplyAt' => __('Make the change on', 'sarcio'),
            'scheduleRepeat' => __('Repeat', 'sarcio'),
            'repeatOptions' => ['none' => __('Just once', 'sarcio'), 'daily' => __('Every day', 'sarcio'), 'weekly' => __('Every week', 'sarcio'), 'monthly' => __('Every month', 'sarcio')],
            /* translators: %s: every day, week or month. */
            'scheduledRepeat' => __('repeats %s', 'sarcio'),
            'scheduleRevertAt' => __('Change it back on (optional)', 'sarcio'),
            'scheduleConfirm' => __('Schedule', 'sarcio'),
            'scheduleCancel' => __('Cancel', 'sarcio'),
            /* translators: %s: the site's time zone. */
            'scheduleNote' => __('Times are in the site’s time zone (%s). The change is made by WordPress’s scheduler, which runs when the site gets a visit.', 'sarcio'),
            'scheduled' => __('Scheduled', 'sarcio'),
            /* translators: %s: the date and time. */
            'scheduledFor' => __('Scheduled for %s', 'sarcio'),
            /* translators: %s: the date and time. */
            'scheduledBack' => __('back on %s', 'sarcio'),
            'scheduledList' => __('Scheduled changes', 'sarcio'),
            'noScheduled' => __('Nothing is scheduled.', 'sarcio'),
            'scheduledStatus' => [
                'applied' => __('Applied', 'sarcio'),
                'cancelled' => __('Cancelled', 'sarcio'),
                'failed' => __('Did not work', 'sarcio'),
                'partial' => __('Partly applied', 'sarcio'),
                'pending' => __('Waiting', 'sarcio'),
                'revert_failed' => __('Could not change back', 'sarcio'),
                'reverted' => __('Changed back', 'sarcio'),
            ],
            'cancelSchedule' => __('Cancel', 'sarcio'),
            'keepApplied' => __('Keep it', 'sarcio'),
            'applying' => __('Applying…', 'sarcio'),
            'conversations' => __('Conversations', 'sarcio'),
            'delete' => __('Delete', 'sarcio'),
            'discard' => __('Discard', 'sarcio'),
            'discarded' => __('Preview discarded', 'sarcio'),
            'earlier' => __('Earlier in this conversation', 'sarcio'),
            'inPreview' => __('In your preview', 'sarcio'),
            'noConversations' => __('Your past conversations will be listed here.', 'sarcio'),
            'notPreviewable' => __('This one cannot be shown in the preview: it happens when you press Apply.', 'sarcio'),
            'openPreview' => __('Look at the site', 'sarcio'),
            'panelOpen' => __('Show beside the chat', 'sarcio'),
            'panelClose' => __('Close the preview panel', 'sarcio'),
            'panelHide' => __('Hide the panel', 'sarcio'),
            'panelFrame' => __('Your site, as your preview shows it', 'sarcio'),
            'panelNewTab' => __('Open in a new tab', 'sarcio'),
            'panelLoading' => __('Loading your site…', 'sarcio'),
            'panelFailed' => __('Your site cannot be shown here: it does not allow itself to be shown inside another page, or it took too long to load. Look at it in a new tab instead.', 'sarcio'),
            'panelRetry' => __('Try again', 'sarcio'),
            'showLive' => __('Show live', 'sarcio'),
            'showLiveLabel' => __('Show the live site, without my changes, in the preview', 'sarcio'),
            'showChanges' => __('Show my changes', 'sarcio'),
            'showChangesLabel' => __('Show my changes again in the preview', 'sarcio'),
            'showingChanges' => __('Showing your changes', 'sarcio'),
            'showingLive' => __('Showing the live site', 'sarcio'),
            'liveSite' => __('Your live site', 'sarcio'),
            /* translators: %s: how many changes. */
            'previewMany' => __('%s changes in your preview of the site', 'sarcio'),
            'previewOne' => __('1 change in your preview of the site', 'sarcio'),
            'previewDropped' => __('Some previewed changes no longer fit the site and were left out.', 'sarcio'),
            'previewEnded' => __('That preview had ended, so it was rebuilt from this conversation.', 'sarcio'),
            'summarised' => __('Earlier messages were summarised to keep the conversation going.', 'sarcio'),
            'before' => __('Before', 'sarcio'),
            'after' => __('After', 'sarcio'),
            'checking' => __('Looking…', 'sarcio'),
            // translators: 1: plugin name, 2: plugin author.
            'consentInstall' => __('Install %1$s by %2$s from WordPress.org', 'sarcio'),
            // translators: %s: plugin name.
            'consentActivate' => __('Turn on %s', 'sarcio'),
            'consentNote' => __('Only plugins from the WordPress.org directory. Nothing is installed until you tick this box and press Apply.', 'sarcio'),
            'consentRun' => __('Yes, make this change for real', 'sarcio'),
            'consentRunNote' => __('This one is made by another plugin and is not undone from here. Nothing happens until you tick this box and press Apply.', 'sarcio'),
            'done' => __('Done', 'sarcio'),
            'empty' => __('What would you like to change?', 'sarcio'),
            'failed' => __('Did not work', 'sarcio'),
            // translators: %s: number of active installs.
            'installs' => __('%s active installs', 'sarcio'),
            'newConversation' => __('New conversation', 'sarcio'),
            'noChanges' => __('No changes yet. Changes you make here will be listed so you can undo them.', 'sarcio'),
            'placeholder' => __('Describe the change you want…', 'sarcio'),
            // translators: %s: average rating.
            'rating' => __('rated %s of 5', 'sarcio'),
            'recentChanges' => __('Recent changes', 'sarcio'),
            'removeFromPreview' => __('Leave this one out', 'sarcio'),
            'reconnect' => __('Your Sarcio sign-in here has ended. Reload the page to connect again.', 'sarcio'),
            'send' => __('Send', 'sarcio'),
            'skip' => __('Skip', 'sarcio'),
            'skipped' => __('Skipped', 'sarcio'),
            'stop' => __('Stop', 'sarcio'),
            'tryAgain' => __('Try again', 'sarcio'),
            /* translators: %s: how many lines. */
            'unchangedLines' => __('… %s unchanged lines', 'sarcio'),
            'whatChanged' => __('What changed', 'sarcio'),
            'stopped' => __('Stopped. Say what to do next.', 'sarcio'),
            'thinking' => __('Thinking…', 'sarcio'),
            'tooManySteps' => __('That took a lot of steps. Check the result and say what to do next.', 'sarcio'),
            'undo' => __('Undo', 'sarcio'),
            'undone' => __('Undone', 'sarcio'),
            'unreachable' => __('Could not reach your site. Check your connection and try again.', 'sarcio'),
            'waiting' => __('Waiting for you', 'sarcio'),
            'you' => __('You', 'sarcio'),
        ];
    }
}