<?php

namespace NoNameWeb\LivewireMaterial\Showcase;

use Illuminate\Support\Str;
use NoNameWeb\LivewireMaterial\LivewireMaterialServiceProvider;

/**
 * The showcase's pages: one per section, grouped as the rail groups them.
 */
class Sections
{
    /**
     * What the showcase's search looks through: every section, every example in it (linked to the
     * example's anchor), and every component, linked to the first section that introduces it.
     *
     * @return list<array{title: string, kind: string, context: string, url: string, keywords: string}>
     */
    public static function index(): array
    {
        $sections = static::all();
        $components = collect(glob(LivewireMaterialServiceProvider::componentPath().'/*.blade.php'))
            ->map(fn (string $path): string => basename($path, '.blade.php'))
            ->all();
        $sources = collect($sections)->map(fn (array $section, string $key): string => (string) file_get_contents(static::path($key)));

        $entries = [];
        $homes = [];

        foreach ($sections as $key => $section) {
            $url = route('livewire-material.section', $key, false);

            $entries[] = ['title' => $section['title'], 'kind' => 'Section', 'context' => $section['group'], 'url' => $url, 'keywords' => $section['description']];

            preg_match_all("/^\\s*'((?:[^'\\\\]|\\\\.)*)'\\s*=>\\s*<<<'BLADE'/m", $sources[$key], $examples);

            foreach ($examples[1] as $title) {
                $title = stripslashes($title);
                $entries[] = ['title' => $title, 'kind' => 'Example', 'context' => $section['title'], 'url' => $url.'#'.static::anchor($title), 'keywords' => ''];
            }
        }

        // A section that names a component in its introduction is its home; otherwise the first that uses it.
        foreach (['/&lt;x-([a-z0-9-]+)&gt;/', '/<x-(?:livewire-material::)?([a-z0-9-]+)(?=[\\s\\/>])/'] as $pattern) {
            foreach ($sources as $key => $source) {
                preg_match_all($pattern, $source, $tags);

                foreach ($tags[1] as $tag) {
                    if (in_array($tag, $components, true)) {
                        $homes[$tag] ??= $key;
                    }
                }
            }
        }

        foreach ($homes as $tag => $key) {
            $entries[] = ['title' => "<x-{$tag}>", 'kind' => 'Component', 'context' => $sections[$key]['title'], 'url' => route('livewire-material.section', $key, false), 'keywords' => str_replace('-', ' ', $tag)];
        }

        return $entries;
    }

    /**
     * The anchor of an example on its section's page.
     */
    public static function anchor(string $title): string
    {
        return 'example-'.Str::slug($title);
    }

    /**
     * A section's view file.
     */
    public static function path(string $key): string
    {
        return dirname(__DIR__, 2).'/resources/views/showcase/sections/'.$key.'.blade.php';
    }

    /**
     * @return array<string, array{title: string, icon: string, group: string, description: string}>
     */
    public static function all(): array
    {
        return [
            'colour' => ['title' => 'Colour', 'icon' => 'palette', 'group' => 'Foundations', 'description' => 'Every colour role of the generated scheme, light and dark.'],
            'type' => ['title' => 'Type', 'icon' => 'text_fields', 'group' => 'Foundations', 'description' => 'The typescale, emphasized styles included, in Google Sans Flex.'],
            'shape' => ['title' => 'Shape', 'icon' => 'interests', 'group' => 'Foundations', 'description' => 'Corner radii and the 35 M3 Expressive shapes.'],
            'elevation' => ['title' => 'Elevation', 'icon' => 'layers', 'group' => 'Foundations', 'description' => 'Shadows for what floats over content.'],
            'motion' => ['title' => 'Motion', 'icon' => 'animation', 'group' => 'Foundations', 'description' => 'Spatial springs and effects easings.'],
            'icons' => ['title' => 'Icons', 'icon' => 'emoji_symbols', 'group' => 'Foundations', 'description' => 'Every Material Symbol, searchable, outlined and filled.'],
            'buttons' => ['title' => 'Buttons', 'icon' => 'smart_button', 'group' => 'Actions', 'description' => 'Buttons, icon buttons, groups, split buttons and FABs.'],
            'menus' => ['title' => 'Menus', 'icon' => 'menu_open', 'group' => 'Actions', 'description' => 'Menus with items, groups, choices and shortcuts.'],
            'chips' => ['title' => 'Chips', 'icon' => 'sell', 'group' => 'Actions', 'description' => 'Assist, filter, input and suggestion chips.'],
            'communication' => ['title' => 'Communication', 'icon' => 'notifications', 'group' => 'Communication', 'description' => 'Badges, snackbars, tooltips, alerts, stats and empty states.'],
            'progress' => ['title' => 'Progress', 'icon' => 'progress_activity', 'group' => 'Communication', 'description' => 'Linear, circular and wavy progress, and the loading indicator.'],
            'containment' => ['title' => 'Containment', 'icon' => 'web_asset', 'group' => 'Containment', 'description' => 'Cards, lists, dividers, dialogs and sheets.'],
            'carousel' => ['title' => 'Carousel', 'icon' => 'view_carousel', 'group' => 'Containment', 'description' => 'Multi-browse, hero, uncontained and full-screen carousels.'],
            'fields' => ['title' => 'Text fields', 'icon' => 'edit_note', 'group' => 'Inputs', 'description' => 'Text fields, selects, checkboxes, radios, switches, choices and search.'],
            'sliders' => ['title' => 'Sliders', 'icon' => 'tune', 'group' => 'Inputs', 'description' => 'Standard, centered and range sliders in five sizes.'],
            'pickers' => ['title' => 'Date pickers', 'icon' => 'calendar_month', 'group' => 'Inputs', 'description' => 'Docked, modal and input date pickers, single and range.'],
            'timepickers' => ['title' => 'Time pickers', 'icon' => 'schedule', 'group' => 'Inputs', 'description' => 'The dial and input time picker.'],
            'bars' => ['title' => 'App bars and tabs', 'icon' => 'toolbar', 'group' => 'Navigation', 'description' => 'Top app bars, toolbars, tabs, section navigation and the account menu.'],
            'navigation' => ['title' => 'Navigation', 'icon' => 'explore', 'group' => 'Navigation', 'description' => 'The navigation bar, the navigation rail and the app shell.'],
            'data' => ['title' => 'Data', 'icon' => 'table_chart', 'group' => 'Data and pages', 'description' => 'Data tables, sort headers and pagination.'],
            'pages' => ['title' => 'Error pages and mail', 'icon' => 'page_info', 'group' => 'Data and pages', 'description' => 'The HTTP error pages and the Markdown mail theme.'],
        ];
    }
}