<?php
if ( ! defined( 'ABSPATH' ) ) exit;

use Elementor\Controls_Manager;
use Elementor\Group_Control_Typography;
use Elementor\Group_Control_Border;
use Elementor\Group_Control_Box_Shadow;

class EPPRO_Post_Navigation_Widget extends EPPRO_Base_Widget {

    public function get_name(): string  { return 'eppro-post-navigation'; }
    public function get_title(): string { return __( 'Post Navigation', 'admore-widgets-suite' ); }
    public function get_icon(): string  { return 'eicon-post-navigation'; }
    public function get_keywords(): array { return [ 'navigation', 'prev', 'next', 'post', 'dynamic', 'eppro' ]; }
    public function get_style_depends(): array { return [ 'eppro-post-navigation' ]; }

    protected function register_controls(): void {

        $this->start_controls_section( 'section_content', [
            'label' => __( 'Post Navigation', 'admore-widgets-suite' ),
        ] );

        $this->add_control( 'show_label', [
            'label'        => __( 'Show Label', 'admore-widgets-suite' ),
            'type'         => Controls_Manager::SWITCHER,
            'default'      => 'yes',
            'return_value' => 'yes',
        ] );

        $this->add_control( 'prev_label', [
            'label'     => __( 'Prev Label', 'admore-widgets-suite' ),
            'type'      => Controls_Manager::TEXT,
            'default'   => __( 'Previous Post', 'admore-widgets-suite' ),
            'condition' => [ 'show_label' => 'yes' ],
        ] );

        $this->add_control( 'next_label', [
            'label'     => __( 'Next Label', 'admore-widgets-suite' ),
            'type'      => Controls_Manager::TEXT,
            'default'   => __( 'Next Post', 'admore-widgets-suite' ),
            'condition' => [ 'show_label' => 'yes' ],
        ] );

        $this->add_control( 'show_title', [
            'label'        => __( 'Show Post Title', 'admore-widgets-suite' ),
            'type'         => Controls_Manager::SWITCHER,
            'default'      => 'yes',
            'return_value' => 'yes',
        ] );

        $this->add_control( 'show_arrows', [
            'label'        => __( 'Show Arrows', 'admore-widgets-suite' ),
            'type'         => Controls_Manager::SWITCHER,
            'default'      => 'yes',
            'return_value' => 'yes',
        ] );

        $this->add_control( 'in_same_term', [
            'label'        => __( 'Stay in Same Category', 'admore-widgets-suite' ),
            'type'         => Controls_Manager::SWITCHER,
            'default'      => '',
            'return_value' => 'yes',
        ] );

        $this->end_controls_section();

        // ── STYLE ─────────────────────────────────────────────────────────────
        $this->start_controls_section( 'style_nav', [
            'label' => __( 'Navigation', 'admore-widgets-suite' ),
            'tab'   => Controls_Manager::TAB_STYLE,
        ] );

        $this->add_group_control( Group_Control_Typography::get_type(), [
            'name'     => 'nav_typography',
            'selector' => '{{WRAPPER}} .eppro-post-nav-link',
        ] );

        $this->start_controls_tabs( 'nav_tabs' );

        $this->start_controls_tab( 'nav_normal', [ 'label' => __( 'Normal', 'admore-widgets-suite' ) ] );
        $this->add_control( 'nav_color', [
            'label'     => __( 'Color', 'admore-widgets-suite' ),
            'type'      => Controls_Manager::COLOR,
            'default'   => '#1e293b',
            'selectors' => [ '{{WRAPPER}} .eppro-post-nav-link' => 'color: {{VALUE}};' ],
        ] );
        $this->add_control( 'nav_bg', [
            'label'     => __( 'Background', 'admore-widgets-suite' ),
            'type'      => Controls_Manager::COLOR,
            'selectors' => [ '{{WRAPPER}} .eppro-post-nav-link' => 'background-color: {{VALUE}};' ],
        ] );
        $this->end_controls_tab();

        $this->start_controls_tab( 'nav_hover', [ 'label' => __( 'Hover', 'admore-widgets-suite' ) ] );
        $this->add_control( 'nav_hover_color', [
            'label'     => __( 'Color', 'admore-widgets-suite' ),
            'type'      => Controls_Manager::COLOR,
            'default'   => '#7c3aed',
            'selectors' => [ '{{WRAPPER}} .eppro-post-nav-link:hover' => 'color: {{VALUE}};' ],
        ] );
        $this->add_control( 'nav_hover_bg', [
            'label'     => __( 'Background', 'admore-widgets-suite' ),
            'type'      => Controls_Manager::COLOR,
            'selectors' => [ '{{WRAPPER}} .eppro-post-nav-link:hover' => 'background-color: {{VALUE}};' ],
        ] );
        $this->end_controls_tab();
        $this->end_controls_tabs();

        $this->add_responsive_control( 'nav_padding', [
            'label'      => __( 'Padding', 'admore-widgets-suite' ),
            'type'       => Controls_Manager::DIMENSIONS,
            'size_units' => [ 'px', 'em' ],
            'default'    => [ 'top' => '12', 'right' => '20', 'bottom' => '12', 'left' => '20', 'unit' => 'px', 'isLinked' => false ],
            'selectors'  => [ '{{WRAPPER}} .eppro-post-nav-link' => 'padding: {{TOP}}{{UNIT}} {{RIGHT}}{{UNIT}} {{BOTTOM}}{{UNIT}} {{LEFT}}{{UNIT}};' ],
            'separator'  => 'before',
        ] );

        $this->add_control( 'nav_radius', [
            'label'      => __( 'Border Radius', 'admore-widgets-suite' ),
            'type'       => Controls_Manager::SLIDER,
            'size_units' => [ 'px' ],
            'default'    => [ 'size' => 6 ],
            'selectors'  => [ '{{WRAPPER}} .eppro-post-nav-link' => 'border-radius: {{SIZE}}{{UNIT}};' ],
        ] );

        $this->add_group_control( Group_Control_Border::get_type(), [
            'name'     => 'nav_border',
            'selector' => '{{WRAPPER}} .eppro-post-nav-link',
        ] );

        $this->add_group_control( Group_Control_Box_Shadow::get_type(), [
            'name'     => 'nav_shadow',
            'selector' => '{{WRAPPER}} .eppro-post-nav-link',
        ] );

        $this->end_controls_section();

        $this->start_controls_section( 'style_label', [
            'label' => __( 'Label', 'admore-widgets-suite' ),
            'tab'   => Controls_Manager::TAB_STYLE,
        ] );

        $this->add_group_control( Group_Control_Typography::get_type(), [
            'name'     => 'label_typography',
            'selector' => '{{WRAPPER}} .eppro-pn-label',
        ] );

        $this->add_control( 'label_color', [
            'label'     => __( 'Color', 'admore-widgets-suite' ),
            'type'      => Controls_Manager::COLOR,
            'default'   => '#64748b',
            'selectors' => [ '{{WRAPPER}} .eppro-pn-label' => 'color: {{VALUE}};' ],
        ] );

        $this->end_controls_section();
    }

    protected function render(): void {
        $s            = $this->get_settings_for_display();
        $in_same_term = 'yes' === $s['in_same_term'];
        $show_title   = 'yes' === $s['show_title'];
        $show_label   = 'yes' === $s['show_label'];
        $show_arrows  = 'yes' === $s['show_arrows'];

        $prev_post = get_adjacent_post( $in_same_term, '', true );
        $next_post = get_adjacent_post( $in_same_term, '', false );

        if ( ! $prev_post && ! $next_post ) {
            if ( \Elementor\Plugin::$instance->editor->is_edit_mode() ) {
                $prev_post = (object) [ 'ID' => 0, 'post_title' => __( 'Previous Post Title', 'admore-widgets-suite' ) ];
                $next_post = (object) [ 'ID' => 0, 'post_title' => __( 'Next Post Title', 'admore-widgets-suite' ) ];
            } else {
                return;
            }
        }
        ?>
        <nav class="eppro-post-nav" aria-label="<?php esc_attr_e( 'Post Navigation', 'admore-widgets-suite' ); ?>">
            <?php if ( $prev_post ) :
                $prev_url = $prev_post->ID ? get_permalink( $prev_post->ID ) : '#'; ?>
                <a href="<?php echo esc_url( $prev_url ); ?>" class="eppro-post-nav-link eppro-post-nav-prev" rel="prev">
                    <?php if ( $show_arrows ) : ?><span class="eppro-pn-arrow" aria-hidden="true">&#8592;</span><?php endif; ?>
                    <span class="eppro-pn-content">
                        <?php if ( $show_label ) : ?>
                            <span class="eppro-pn-label"><?php echo esc_html( $s['prev_label'] ?: __( 'Previous Post', 'admore-widgets-suite' ) ); ?></span>
                        <?php endif; ?>
                        <?php if ( $show_title ) : ?>
                            <span class="eppro-pn-title"><?php echo esc_html( $prev_post->post_title ); ?></span>
                        <?php endif; ?>
                    </span>
                </a>
            <?php endif; ?>

            <?php if ( $next_post ) :
                $next_url = $next_post->ID ? get_permalink( $next_post->ID ) : '#'; ?>
                <a href="<?php echo esc_url( $next_url ); ?>" class="eppro-post-nav-link eppro-post-nav-next" rel="next">
                    <span class="eppro-pn-content">
                        <?php if ( $show_label ) : ?>
                            <span class="eppro-pn-label"><?php echo esc_html( $s['next_label'] ?: __( 'Next Post', 'admore-widgets-suite' ) ); ?></span>
                        <?php endif; ?>
                        <?php if ( $show_title ) : ?>
                            <span class="eppro-pn-title"><?php echo esc_html( $next_post->post_title ); ?></span>
                        <?php endif; ?>
                    </span>
                    <?php if ( $show_arrows ) : ?><span class="eppro-pn-arrow" aria-hidden="true">&#8594;</span><?php endif; ?>
                </a>
            <?php endif; ?>
        </nav>
        <?php
    }
}