<?php
/**
 * EPP Breadcrumbs Widget
 *
 * Renders a dynamic breadcrumb trail with full hierarchy support,
 * custom separator, rich typography/color controls.
 *
 * @package AdMoreWidgetsSuite
 * @since   1.0.0
 */

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

class EPPRO_Breadcrumbs_Widget extends EPPRO_Base_Widget {

    public function get_name(): string  { return 'eppro-breadcrumbs'; }
    public function get_title(): string { return __( 'Breadcrumbs', 'admore-widgets-suite' ); }
    public function get_icon(): string  { return 'eicon-post-navigation'; }
    public function get_keywords(): array { return [ 'breadcrumbs', 'navigation', 'trail', 'path', 'eppro' ]; }
    public function get_style_depends(): array { return [ 'eppro-breadcrumbs' ]; }

    // -------------------------------------------------------------------------
    // Controls
    // -------------------------------------------------------------------------

    protected function register_controls(): void {

        /* ── Content ── */
        $this->start_controls_section( 'section_content', [
            'label' => __( 'Breadcrumbs', 'admore-widgets-suite' ),
        ] );

        $this->add_control( 'home_text', [
            'label'   => __( 'Home Label', 'admore-widgets-suite' ),
            'type'    => \Elementor\Controls_Manager::TEXT,
            'default' => __( 'Home', 'admore-widgets-suite' ),
        ] );

        $this->add_control( 'separator_type', [
            'label'   => __( 'Separator Type', 'admore-widgets-suite' ),
            'type'    => \Elementor\Controls_Manager::SELECT,
            'default' => 'text',
            'options' => [
                'text' => __( 'Text / Character', 'admore-widgets-suite' ),
                'icon' => __( 'Icon', 'admore-widgets-suite' ),
            ],
        ] );

        $this->add_control( 'separator', [
            'label'     => __( 'Separator', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::TEXT,
            'default'   => '/',
            'condition' => [ 'separator_type' => 'text' ],
        ] );

        $this->add_control( 'separator_icon', [
            'label'     => __( 'Separator Icon', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::ICONS,
            'default'   => [ 'value' => 'fas fa-chevron-right', 'library' => 'fa-solid' ],
            'condition' => [ 'separator_type' => 'icon' ],
        ] );

        $this->add_control( 'show_home', [
            'label'        => __( 'Show Home Link', 'admore-widgets-suite' ),
            'type'         => \Elementor\Controls_Manager::SWITCHER,
            'label_on'     => __( 'Yes', 'admore-widgets-suite' ),
            'label_off'    => __( 'No', 'admore-widgets-suite' ),
            'return_value' => 'yes',
            'default'      => 'yes',
        ] );

        $this->add_control( 'home_icon', [
            'label'     => __( 'Home Icon', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::ICONS,
            'condition' => [ 'show_home' => 'yes' ],
        ] );

        $this->add_control( 'show_current', [
            'label'        => __( 'Show Current Page', 'admore-widgets-suite' ),
            'type'         => \Elementor\Controls_Manager::SWITCHER,
            'label_on'     => __( 'Yes', 'admore-widgets-suite' ),
            'label_off'    => __( 'No', 'admore-widgets-suite' ),
            'return_value' => 'yes',
            'default'      => 'yes',
        ] );

        $this->add_control( 'enable_jsonld', [
            'label'        => __( 'JSON-LD Schema', 'admore-widgets-suite' ),
            'type'         => \Elementor\Controls_Manager::SWITCHER,
            'default'      => 'yes',
            'return_value' => 'yes',
            'description'  => __( 'Output structured data for SEO.', 'admore-widgets-suite' ),
            'separator'    => 'before',
        ] );

        $this->add_responsive_control( 'alignment', [
            'label'     => __( 'Alignment', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::CHOOSE,
            'options'   => [
                'left'   => [ 'title' => __( 'Left',   'admore-widgets-suite' ), 'icon' => 'eicon-text-align-left' ],
                'center' => [ 'title' => __( 'Center', 'admore-widgets-suite' ), 'icon' => 'eicon-text-align-center' ],
                'right'  => [ 'title' => __( 'Right',  'admore-widgets-suite' ), 'icon' => 'eicon-text-align-right' ],
            ],
            'default'   => 'center',
            'selectors' => [ '{{WRAPPER}} .eppro-breadcrumbs' => 'justify-content: {{VALUE}};' ],
        ] );

        $this->end_controls_section();

        /* ── Wrapper ── */
        $this->start_controls_section( 'section_style_wrapper', [
            'label' => __( 'Wrapper', 'admore-widgets-suite' ),
            'tab'   => \Elementor\Controls_Manager::TAB_STYLE,
        ] );

        $this->add_group_control( \Elementor\Group_Control_Background::get_type(), [
            'name'     => 'wrapper_bg',
            'selector' => '{{WRAPPER}} .eppro-breadcrumbs-wrap',
        ] );

        $this->add_responsive_control( 'wrapper_padding', [
            'label'      => __( 'Padding', 'admore-widgets-suite' ),
            'type'       => \Elementor\Controls_Manager::DIMENSIONS,
            'size_units' => [ 'px', 'em' ],
            'selectors'  => [ '{{WRAPPER}} .eppro-breadcrumbs-wrap' => 'padding: {{TOP}}{{UNIT}} {{RIGHT}}{{UNIT}} {{BOTTOM}}{{UNIT}} {{LEFT}}{{UNIT}};' ],
        ] );

        $this->add_responsive_control( 'wrapper_border_radius', [
            'label'      => __( 'Border Radius', 'admore-widgets-suite' ),
            'type'       => \Elementor\Controls_Manager::DIMENSIONS,
            'size_units' => [ 'px', '%' ],
            'selectors'  => [ '{{WRAPPER}} .eppro-breadcrumbs-wrap' => 'border-radius: {{TOP}}{{UNIT}} {{RIGHT}}{{UNIT}} {{BOTTOM}}{{UNIT}} {{LEFT}}{{UNIT}};' ],
        ] );

        $this->end_controls_section();

        /* ── Typography ── */
        $this->start_controls_section( 'section_style_text', [
            'label' => __( 'Typography & Color', 'admore-widgets-suite' ),
            'tab'   => \Elementor\Controls_Manager::TAB_STYLE,
        ] );

        $this->add_group_control( \Elementor\Group_Control_Typography::get_type(), [
            'name'     => 'crumb_typography',
            'selector' => '{{WRAPPER}} .eppro-breadcrumbs',
        ] );

        $this->add_control( 'link_color', [
            'label'     => __( 'Link Color', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::COLOR,
            'selectors' => [ '{{WRAPPER}} .eppro-breadcrumb-link' => 'color: {{VALUE}};' ],
        ] );

        $this->add_control( 'link_hover_color', [
            'label'     => __( 'Link Hover Color', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::COLOR,
            'selectors' => [ '{{WRAPPER}} .eppro-breadcrumb-link:hover' => 'color: {{VALUE}};' ],
        ] );

        $this->add_control( 'current_color', [
            'label'     => __( 'Current Page Color', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::COLOR,
            'selectors' => [ '{{WRAPPER}} .eppro-breadcrumb-current' => 'color: {{VALUE}};' ],
        ] );

        $this->add_control( 'separator_color', [
            'label'     => __( 'Separator Color', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::COLOR,
            'selectors' => [ '{{WRAPPER}} .eppro-breadcrumb-sep' => 'color: {{VALUE}};' ],
        ] );

        $this->add_responsive_control( 'item_gap', [
            'label'     => __( 'Item Gap', 'admore-widgets-suite' ),
            'type'      => \Elementor\Controls_Manager::SLIDER,
            'range'     => [ 'px' => [ 'min' => 0, 'max' => 32 ] ],
            'default'   => [ 'size' => 8, 'unit' => 'px' ],
            'selectors' => [ '{{WRAPPER}} .eppro-breadcrumbs' => 'gap: {{SIZE}}{{UNIT}};' ],
        ] );

        $this->add_responsive_control( 'separator_size', [
            'label'      => __( 'Separator Size', 'admore-widgets-suite' ),
            'type'       => \Elementor\Controls_Manager::SLIDER,
            'size_units' => [ 'px' ],
            'range'      => [ 'px' => [ 'min' => 6, 'max' => 32 ] ],
            'selectors'  => [
                '{{WRAPPER}} .eppro-breadcrumb-sep i'   => 'font-size: {{SIZE}}{{UNIT}};',
                '{{WRAPPER}} .eppro-breadcrumb-sep svg' => 'width: {{SIZE}}{{UNIT}}; height: {{SIZE}}{{UNIT}};',
                '{{WRAPPER}} .eppro-breadcrumb-sep'     => 'font-size: {{SIZE}}{{UNIT}};',
            ],
            'separator' => 'before',
        ] );

        $this->add_responsive_control( 'home_icon_size', [
            'label'      => __( 'Home Icon Size', 'admore-widgets-suite' ),
            'type'       => \Elementor\Controls_Manager::SLIDER,
            'size_units' => [ 'px' ],
            'range'      => [ 'px' => [ 'min' => 10, 'max' => 40 ] ],
            'selectors'  => [
                '{{WRAPPER}} .eppro-breadcrumb-home-icon i'   => 'font-size: {{SIZE}}{{UNIT}};',
                '{{WRAPPER}} .eppro-breadcrumb-home-icon svg' => 'width: {{SIZE}}{{UNIT}}; height: {{SIZE}}{{UNIT}};',
            ],
        ] );

        $this->end_controls_section();

        // Entrance animation — inherited from base
        $this->eppro_register_entrance_animation_controls();
    }

    // -------------------------------------------------------------------------
    // Render
    // -------------------------------------------------------------------------

    protected function render(): void {
        $s            = $this->get_settings_for_display();
        $show_home    = 'yes' === ( $s['show_home']    ?? 'yes' );
        $show_current = 'yes' === ( $s['show_current'] ?? 'yes' );
        $sep_type     = $s['separator_type'] ?? 'text';
        $separator    = $s['separator'] ? esc_html( $s['separator'] ) : '/';
        $home_text    = $s['home_text']  ? esc_html( $s['home_text'] ) : esc_html__( 'Home', 'admore-widgets-suite' );
        $has_home_icon = ! empty( $s['home_icon']['value'] );
        $enable_jsonld = 'yes' === ( $s['enable_jsonld'] ?? 'yes' );

        $crumbs = self::build_crumbs();

        if ( empty( $crumbs ) ) {
            if ( \Elementor\Plugin::$instance->editor->is_edit_mode() ) {
                $sep = $s['separator'] ?: '/';
                echo '<nav class="eppro-breadcrumbs-wrap" aria-label="Breadcrumb" style="pointer-events:none;">
                    <ol class="eppro-breadcrumbs" style="list-style:none;display:flex;align-items:center;flex-wrap:wrap;gap:4px;margin:0;padding:0;">
                        <li class="eppro-breadcrumb-item"><a class="eppro-breadcrumb-link" href="#">' . esc_html( $home_text ) . '</a></li>
                        <li class="eppro-breadcrumb-sep" aria-hidden="true">' . esc_html( $sep ) . '</li>
                        <li class="eppro-breadcrumb-item"><a class="eppro-breadcrumb-link" href="#">' . esc_html__( 'Category', 'admore-widgets-suite' ) . '</a></li>
                        <li class="eppro-breadcrumb-sep" aria-hidden="true">' . esc_html( $sep ) . '</li>
                        <li class="eppro-breadcrumb-item"><span class="eppro-breadcrumb-current">' . esc_html__( 'Current Page', 'admore-widgets-suite' ) . '</span></li>
                    </ol>
                </nav>';
            }
            return;
        }
        ?>
        <nav class="eppro-breadcrumbs-wrap" aria-label="<?php esc_attr_e( 'Breadcrumb', 'admore-widgets-suite' ); ?>">
            <ol class="eppro-breadcrumbs" itemscope itemtype="https://schema.org/BreadcrumbList">
                <?php
                $items = [];

                if ( $show_home ) {
                    $items[] = [
                        'url'     => home_url( '/' ),
                        'label'   => $home_text,
                        'current' => false,
                        'is_home' => true,
                    ];
                }

                foreach ( $crumbs as $crumb ) {
                    $items[] = $crumb;
                }

                $total = count( $items );
                foreach ( $items as $idx => $item ) :
                    $is_last    = ( $idx === $total - 1 );
                    $is_current = $item['current'] ?? $is_last;
                    $is_home    = ! empty( $item['is_home'] );

                    if ( $is_current && ! $show_current && $is_last ) continue;
                    ?>
                    <li class="eppro-breadcrumb-item"
                        itemprop="itemListElement"
                        itemscope
                        itemtype="https://schema.org/ListItem">
                        <?php if ( $is_last && $is_current ) : ?>
                            <span class="eppro-breadcrumb-current" itemprop="name">
                                <?php echo esc_html( $item['label'] ); ?>
                            </span>
                        <?php else : ?>
                            <a class="eppro-breadcrumb-link"
                               href="<?php echo esc_url( $item['url'] ); ?>"
                               itemprop="item">
                                <?php if ( $is_home && $has_home_icon ) : ?>
                                    <span class="eppro-breadcrumb-home-icon" aria-hidden="true"><?php \Elementor\Icons_Manager::render_icon( $s['home_icon'], [ 'aria-hidden' => 'true' ] ); ?></span>
                                <?php endif; ?>
                                <span itemprop="name"><?php echo esc_html( $item['label'] ); ?></span>
                            </a>
                        <?php endif; ?>
                        <meta itemprop="position" content="<?php echo esc_attr( $idx + 1 ); ?>">
                        <?php if ( ! $is_last ) : ?>
                            <span class="eppro-breadcrumb-sep" aria-hidden="true">
                                <?php if ( 'icon' === $sep_type && ! empty( $s['separator_icon']['value'] ) ) :
                                    \Elementor\Icons_Manager::render_icon( $s['separator_icon'], [ 'aria-hidden' => 'true' ] );
                                else :
                                    echo esc_html( $separator );
                                endif; ?>
                            </span>
                        <?php endif; ?>
                    </li>
                <?php endforeach; ?>
            </ol>
        </nav>

        <?php if ( $enable_jsonld && ! empty( $items ) ) :
            $schema_items = [];
            $pos = 1;
            foreach ( $items as $item ) {
                $schema_items[] = [
                    '@type'    => 'ListItem',
                    'position' => $pos++,
                    'name'     => $item['label'],
                    'item'     => $item['url'] ?? '',
                ];
            }
            $jsonld = wp_json_encode( [
                '@context'        => 'https://schema.org',
                '@type'           => 'BreadcrumbList',
                'itemListElement' => $schema_items,
            ], JSON_HEX_TAG | JSON_HEX_AMP | JSON_HEX_APOS | JSON_HEX_QUOT );
            $handle = 'eppro-breadcrumbs-jsonld';
            wp_register_script( $handle, false, [], EPPRO_VERSION, true );
            wp_enqueue_script( $handle );
            wp_add_inline_script( $handle, 'var _eppBreadcrumbSchema=document.createElement("script");_eppBreadcrumbSchema.type="application/ld+json";_eppBreadcrumbSchema.text=' . $jsonld . ';document.head.appendChild(_eppBreadcrumbSchema);' );
        endif; ?>
        <?php
    }

    // -------------------------------------------------------------------------
    // Build crumbs
    // -------------------------------------------------------------------------

    private static function build_crumbs(): array {
        $crumbs = [];

        if ( is_singular() ) {
            $post = get_queried_object();
            if ( ! $post instanceof WP_Post ) return [];

            // Post type archive
            $pt_obj = get_post_type_object( $post->post_type );
            if ( $pt_obj && $pt_obj->has_archive && 'post' !== $post->post_type ) {
                $archive_link = get_post_type_archive_link( $post->post_type );
                if ( $archive_link ) {
                    $crumbs[] = [
                        'url'     => $archive_link,
                        'label'   => $pt_obj->labels->name,
                        'current' => false,
                    ];
                }
            }

            // Taxonomies (categories, custom taxonomies)
            $taxonomies = get_object_taxonomies( $post->post_type, 'objects' );
            foreach ( $taxonomies as $tax ) {
                if ( ! $tax->hierarchical && 'category' !== $tax->name ) continue;
                $terms = get_the_terms( $post->ID, $tax->name );
                if ( $terms && ! is_wp_error( $terms ) ) {
                    $term = $terms[0];
                    // Walk up ancestors
                    $chain = [];
                    $tid   = $term->term_id;
                    while ( $tid ) {
                        $t = get_term( $tid, $tax->name );
                        if ( ! $t || is_wp_error( $t ) ) break;
                        array_unshift( $chain, $t );
                        $tid = $t->parent;
                    }
                    foreach ( $chain as $t ) {
                        $crumbs[] = [
                            'url'     => get_term_link( $t ),
                            'label'   => $t->name,
                            'current' => false,
                        ];
                    }
                    break;
                }
            }

            // Current post
            $crumbs[] = [
                'url'     => get_permalink( $post->ID ),
                'label'   => get_the_title( $post->ID ),
                'current' => true,
            ];

        } elseif ( is_archive() ) {
            if ( is_category() || is_tag() || is_tax() ) {
                $term = get_queried_object();
                if ( $term instanceof WP_Term ) {
                    $crumbs[] = [ 'url' => get_term_link( $term ), 'label' => $term->name, 'current' => true ];
                }
            } elseif ( is_post_type_archive() ) {
                $pt  = get_queried_object();
                $lbl = ( $pt instanceof WP_Post_Type ) ? $pt->labels->name : '';
                $crumbs[] = [ 'url' => get_post_type_archive_link( $pt->name ?? '' ) ?: '#', 'label' => $lbl, 'current' => true ];
            } elseif ( is_date() ) {
                $crumbs[] = [ 'url' => '#', 'label' => get_the_date(), 'current' => true ];
            } elseif ( is_author() ) {
                $author = get_queried_object();
                if ( $author instanceof WP_User ) {
                    $crumbs[] = [ 'url' => get_author_posts_url( $author->ID ), 'label' => $author->display_name, 'current' => true ];
                }
            }

        } elseif ( is_search() ) {
            $crumbs[] = [
                'url'     => '#',
                /* translators: %s: search query string */
                'label'   => sprintf( __( 'Search: %s', 'admore-widgets-suite' ), get_search_query() ),
                'current' => true,
            ];

        } elseif ( is_404() ) {
            $crumbs[] = [ 'url' => '#', 'label' => __( '404 – Not Found', 'admore-widgets-suite' ), 'current' => true ];

        } elseif ( is_page() ) {
            $page = get_queried_object();
            if ( $page instanceof WP_Post ) {
                // Walk up parent pages
                $chain = [];
                $pid   = $page->post_parent;
                while ( $pid ) {
                    $p = get_post( $pid );
                    if ( ! $p ) break;
                    array_unshift( $chain, $p );
                    $pid = $p->post_parent;
                }
                foreach ( $chain as $p ) {
                    $crumbs[] = [
                        'url'     => get_permalink( $p->ID ),
                        'label'   => get_the_title( $p->ID ),
                        'current' => false,
                    ];
                }
                $crumbs[] = [
                    'url'     => get_permalink( $page->ID ),
                    'label'   => get_the_title( $page->ID ),
                    'current' => true,
                ];
            }
        }

        return $crumbs;
    }
}