<?php

// =============================================================================
// CONSTANTS
// =============================================================================

define( 'CHILD_VERSION', '1.0.7' );
define( 'CHILD_NAME', 'Fictioneer Minimalist' );
define( 'CHILD_RELEASE_TAG', 'v1.0.7' );

// Boolean: Base theme switch in site settings
if ( ! defined( 'FICTIONEER_THEME_SWITCH' ) ) {
  define( 'FICTIONEER_THEME_SWITCH', false );
}

// Integer: Default site width
if ( ! defined( 'FICTIONEER_DEFAULT_SITE_WIDTH' ) ) {
  define( 'FICTIONEER_DEFAULT_SITE_WIDTH', 896 );
}

// Integer: Update check timeout
if ( ! defined( 'FCNMM_UPDATE_CHECK_TIMEOUT' ) ) {
  define( 'FCNMM_UPDATE_CHECK_TIMEOUT', 43200 ); // 12 hours
}

// =============================================================================
// CHILD THEME SETUP
// =============================================================================

function fcnmm_theme_setup() {
  // Load translations (if any)
  load_child_theme_textdomain( 'fcnmm', get_stylesheet_directory() . '/languages' );
}
add_action( 'after_setup_theme', 'fcnmm_theme_setup' );

/**
 * Enqueue child theme styles and scripts
 */

function fcnmm_enqueue_styles_and_scripts() {
  // Setup
  $cache_bust = get_option( 'fictioneer_cache_bust' ) ?: CHILD_VERSION;
  $parenthandle = 'fictioneer-application';

  // Add child theme styles
  wp_enqueue_style(
    'fcnmm-style',
    get_stylesheet_directory_uri() . '/css/fcnmm-style.css',
    [ $parenthandle ],
    $cache_bust
  );
}
add_action( 'wp_enqueue_scripts', 'fcnmm_enqueue_styles_and_scripts', 99 );

/**
 * Add or remove parent filters and actions on the frontend
 */

function fcnmm_customize_parent() {
  // Remove unused parent partials
  remove_action( 'fictioneer_site', 'fictioneer_post_content_header', 20 );
  remove_action( 'fictioneer_site', 'fictioneer_text_center_header', 20 );
  remove_action( 'fictioneer_site', 'fictioneer_inner_header', 20 );
  remove_action( 'fictioneer_site', 'fictioneer_top_header', 9 );
  remove_action( 'fictioneer_site', 'fictioneer_inner_header', 20 );
  remove_action( 'fictioneer_site', 'fictioneer_navigation_bar' );
  remove_action( 'fictioneer_main', 'fictioneer_page_background' );
}
add_action( 'init', 'fcnmm_customize_parent' );

// =============================================================================
// CHECK FOR UPDATES
// =============================================================================

/**
 * Get basic child theme info
 *
 * @since 1.0.0
 *
 * @return array Associative array with theme info.
 */

function fcnmm_get_theme_info() {
  // Setup
  $info = get_option( 'fcnmm_theme_info' ) ?: [];

  // Set up if missing
  if ( ! $info || ! is_array( $info ) ) {
    $info = array(
      'last_update_check' => current_time( 'mysql', 1 ),
      'last_update_version' => '',
      'last_update_nag' => current_time( 'mysql', 1 ),
      'last_update_notes' => '',
      'last_version_download_url' => '',
      'setup' => 0,
      'version' => CHILD_VERSION
    );

    update_option( 'fcnmm_theme_info', $info, 'yes' );
  }

  // Merge with defaults (in case of incomplete data)
  $info = array_merge(
    array(
      'last_update_check' => current_time( 'mysql', 1 ),
      'last_update_version' => '',
      'last_update_nag' => '',
      'last_update_notes' => '',
      'last_version_download_url' => '',
      'setup' => 0,
      'version' => CHILD_VERSION
    ),
    $info
  );

  // Return info
  return $info;
}

/**
 * Check Github repository for a new release of the child theme
 *
 * 1.0.0
 *
 * @return boolean True if there is a newer version, false if not.
 */

function fcnmm_check_for_updates() {
  global $pagenow;

  // Setup
  $theme_info = fcnmm_get_theme_info();
  $last_check_timestamp = strtotime( $theme_info['last_update_check'] ?? 0 );
  $remote_version = $theme_info['last_update_version'];
  $is_updates_page = $pagenow === 'update-core.php';

  // Only call API every n seconds, otherwise check database
  if (
    ( ! $is_updates_page && current_time( 'timestamp', true ) < $last_check_timestamp + FCNMM_UPDATE_CHECK_TIMEOUT ) ||
    ( $_GET['action'] ?? 0 ) === 'do-plugin-upgrade'
  ) {
    if ( ! $remote_version ) {
      return false;
    }

    return version_compare( $remote_version, CHILD_RELEASE_TAG, '>' );
  }

  // Remember this check
  $theme_info['last_update_check'] = current_time( 'mysql', 1 );

  // Request to repository
  $response = wp_remote_get(
    'https://api.github.com/repos/Tetrakern/fictioneer-minimalist/releases/latest',
    array(
      'headers' => array(
        'User-Agent' => 'FICTIONEER-MINIMALIST',
        'Accept' => 'application/vnd.github+json',
        'X-GitHub-Api-Version' => '2022-11-28'
      )
    )
  );

  // Abort if request failed or is not a 2xx success status code
  if ( is_wp_error( $response ) || wp_remote_retrieve_response_code( $response ) >= 300 ) {
    // Remember check to avoid continuous tries on each page load
    update_option( 'fcnmm_theme_info', $theme_info );

    return false;
  }

  // Decode JSON to array
  $release = json_decode( wp_remote_retrieve_body( $response ), true );
  $release_tag = sanitize_text_field( $release['tag_name'] ?? '' );

  // Abort if request did not return expected data
  if ( ! $release_tag ) {
    return false;
  }

  // Add to theme info
  $theme_info['last_update_version'] = $release_tag;
  $theme_info['last_update_notes'] = sanitize_textarea_field( $release['body'] ?? '' );
  $theme_info['last_update_nag'] = ''; // Reset

  if ( ( $release['assets'] ?? 0 ) && function_exists( 'fictioneer_sanitize_url' ) ) {
    $theme_info['last_version_download_url'] = fictioneer_sanitize_url( $release['assets'][0]['browser_download_url'] ?? '' );
  } else {
    $theme_info['last_version_download_url'] = '';
  }

  // Update info in database
  update_option( 'fcnmm_theme_info', $theme_info );

  // Compare with currently installed version
  return version_compare( $release_tag, CHILD_RELEASE_TAG, '>' );
}

/**
 * Show notice when a newer version of the child theme is available
 *
 * @since 1.0.0
 */

function fcnmm_admin_update_notice() {
  // Guard
  if (
    ! current_user_can( 'install_themes' ) ||
    ( $_GET['action'] ?? 0 ) === 'upload-theme' ||
    ! fcnmm_check_for_updates()
  ) {
    return;
  }

  global $pagenow;

  // Setup
  $theme_info = fcnmm_get_theme_info();
  $last_update_nag = strtotime( $theme_info['last_update_nag'] ?? 0 );
  $is_updates_page = $pagenow == 'update-core.php';

  // Show only once every n seconds
  if ( ! $is_updates_page && current_time( 'timestamp', true ) < $last_update_nag + 60 ) {
    return;
  }

  // Render notice
  if ( function_exists( 'fictioneer_prepare_release_notes' ) ) {
    $notes = fictioneer_prepare_release_notes( $theme_info['last_update_notes'] ?? '' );
  } else {
    $notes = sanitize_textarea_field( $theme_info['last_update_notes'] ?? '' );
  }

  wp_admin_notice(
    sprintf(
      __( '<strong>Fictioneer Minimalist %1$s</strong> is available. Please <a href="%2$s" target="_blank">download</a> and install the latest version at your next convenience. Remember that updating will override all your changes, so make sure to check the manual update instructions if needed to avoid that. %3$s', 'fcnmm' ),
      $theme_info['last_update_version'],
      'https://github.com/Tetrakern/fictioneer-minimalist/releases',
      $notes ? '<br><details><summary>' . __( 'Release Notes', 'fictioneer' ) . '</summary>' . $notes . '</details>' : ''
    ),
    array(
      'type' => 'warning',
      'dismissible' => true,
      'additional_classes' => ['fictioneer-update-notice']
    )
  );

  // Remember notice
  $theme_info['last_update_nag'] = current_time( 'mysql', 1 );

  // Update info in database
  update_option( 'fcnmm_theme_info', $theme_info );
}
add_action( 'admin_notices', 'fcnmm_admin_update_notice' );

// =============================================================================
// CUSTOMIZER
// =============================================================================

/**
 * Modify the theme customizer
 *
 * @since 1.0.0
 *
 * @param WP_Customize_Manager $manager  The customizer instance.
 */

function fcnmm_modify_customizers( $manager ) {
  // Site width
  $manager->add_setting(
    'site_width',
    array(
      'capability' => 'edit_theme_options',
      'sanitize_callback' => 'absint',
      'default' => 896
    )
  );

  $manager->add_control(
    'site_width',
    array(
      'type' => 'number',
      'priority' => 2,
      'section' => 'layout',
      'label' => __( 'Site Width', 'fictioneer' ),
      'description' => __( 'Maximum site width in pixels, should not be less than 832. Default 896.', 'fcnmm' ),
      'input_attrs' => array(
        'placeholder' => '896',
        'min' => 832,
        'style' => 'width: 80px'
      )
    )
  );

  // Header tagline color
  fictioneer_add_color_theme_option(
    $manager,
    array(
      'section' => 'dark_mode_colors',
      'setting' => 'dark_header_tagline_color',
      'label' => __( 'Dark Header Tagline', 'fictioneer' ),
      'priority' => 7,
      'default' => '#9097a7'
    )
  );

  // Remove controls
  $manager->remove_control( 'inset_header_image' );
  $manager->remove_control( 'header_style' );
  $manager->remove_control( 'title_text_shadow' );
  $manager->remove_control( 'header_post_content_id' );
  $manager->remove_control( 'header_height_min' );
  $manager->remove_control( 'header_height_max' );
  $manager->remove_control( 'page_style' );
  $manager->remove_control( 'page_shadow' );
  $manager->remove_control( 'horizontal_spacing_min' );
  $manager->remove_control( 'horizontal_spacing_max' );
  $manager->remove_control( 'horizontal_spacing_small_min' );
  $manager->remove_control( 'horizontal_spacing_small_max' );
}
add_action( 'customize_register', 'fcnmm_modify_customizers', 99 );

/**
 * Always sets inset_header_image to true
 *
 * @since 1.0.0
 *
 * @param string $mod  Value of the theme mod.
 *
 * @return string Updated value of the theme mod.
 */

function fcnmm_modify_inset_header_image( $mod ) {
  return true;
}
add_filter( 'theme_mod_inset_header_image', 'fcnmm_modify_inset_header_image' );

/**
 * Overrides default cover position on story pages
 *
 * @since 1.0.0
 *
 * @param string $mod  Value of the theme mod.
 *
 * @return string Updated value of the theme mod.
 */

function fcnmm_modify_story_cover_position_fix_default( $mod ) {
  if ( ! $mod || $mod === 'top-left-overflow' ) {
    return 'float-top-left';
  }

  return $mod;
}
add_filter( 'theme_mod_story_cover_position', 'fcnmm_modify_story_cover_position_fix_default' );

/**
 * Changes default cover position in the Customizer
 *
 * @since 1.0.0
 *
 * @param string $default  Default value
 *
 * @return string Changed default value.
 */

function fcnmm_change_story_cover_position_default( $default ) {
  return 'float-top-left';
}
add_filter( 'fictioneer_filter_customizer_story_cover_position_default', 'fcnmm_change_story_cover_position_default' );

/**
 * Removes top-left-overflow story cover position option
 *
 * @since 1.0.0
 *
 * @param array $options  Customizer options for the story cover position.
 *
 * @return array Updated options.
 */

function fcnmm_modify_story_cover_position_options( $options ) {
  unset( $options['top-left-overflow'] );
  $options['float-top-left'] = _x( 'Floating Top-Left (Default)', 'Customizer story cover position option.', 'fcnmm' );

  return $options;
}
add_filter( 'fictioneer_filter_customizer_story_cover_position', 'fcnmm_modify_story_cover_position_options' );

// =============================================================================
// SITE HEADER & NAVIGATION
// =============================================================================

/**
 * Outputs the HTML for the child theme header
 *
 * @since 1.0.0
 *
 * @param int|null       $args['post_id']           Optional. Current post ID.
 * @param int|null       $args['story_id']          Optional. Current story ID (if chapter).
 * @param string|boolean $args['header_image_url']  URL of the filtered header image or false.
 * @param array          $args['header_args']       Arguments passed to the header.php partial.
 */

function fcnmm_header( $args ) {
  // Return early if...
  if ( $args['header_args']['blank'] ?? 0 ) {
    return;
  }

  // Setup
  $home_url = home_url();
  $title = get_bloginfo( 'name' );
  $tagline = get_bloginfo( 'description' );
  $title_tag = is_front_page() ? 'h1' : 'h3';
  $sub_tag = is_front_page() ? 'h2' : 'h4';
  $classes = [];

  // CSS classes
  if ( ! display_header_text() || empty( $title ) ) {
    $classes[] = '_no-title';
  }

  if ( empty( $tagline ) ) {
    $classes[] = '_no-tagline';
  }

  if ( ! has_custom_logo() ) {
    $classes[] = '_no-logo';
  }

  // Render Elementor or theme header
  if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'header' ) ) {
    // Start HTML ---> ?>
    <header class="fcnmm-header <?php echo implode( ' ', $classes ); ?>">
      <div class="fcnmm-header__content">
        <div class="fcnmm-header__identity"><?php
          if ( has_custom_logo() ) {
            echo get_custom_logo();
          }

          if ( display_header_text() ) {
            if ( $title ) {
              echo "<{$title_tag} class='fcnmm-header__title'><a href='{$home_url}'>{$title}</a></{$title_tag}>";
            }

            if ( $tagline ) {
              echo "<{$sub_tag} class='fcnmm-header__tagline'>{$tagline}</{$sub_tag}>";
            }
          }
        ?></div>
        <div class="fcnmm-header__spacer"></div>
        <div class="fcnmm-header__icon-menu"><?php
          fictioneer_render_icon_menu( array( 'location' => 'in-navigation' ) );
        ?></div>
      </div>
    </header>
    <?php // <--- End HTML
  }
}
add_action( 'fictioneer_site', 'fcnmm_header', 20 );

/**
 * Outputs the HTML for the child theme navigation bar
 *
 * @since 1.0.0
 *
 * @param int|null       $args['post_id']           Optional. Current post ID.
 * @param int|null       $args['story_id']          Optional. Current story ID (if chapter).
 * @param string|boolean $args['header_image_url']  URL of the filtered header image or false.
 * @param array          $args['header_args']       Arguments passed to the header.php partial.
 */

function fcnmm_navigation_bar( $args ) {
  // Return early if...
  if ( $args['header_args']['blank'] ?? 0 ) {
    return;
  }

  // Setup
  $mobile_nav_style = get_theme_mod( 'mobile_nav_style', 'overflow' );
  $classes = [];


if ( $mobile_nav_style === 'collapse' ) {
  $classes[] = '_collapse-on-mobile';
}

  // Start HTML ---> ?>
  <div id="full-navigation" class="main-navigation <?php echo implode( ' ', $classes ); ?>">

    <div id="nav-observer-sticky" class="observer nav-observer"></div>

    <div class="main-navigation__background"></div>

    <?php do_action( 'fictioneer_navigation_top', $args ); ?>

    <div class="main-navigation__wrapper">

      <?php if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'nav_bar' ) ) : ?>

        <?php do_action( 'fictioneer_navigation_wrapper_start', $args ); ?>

        <nav class="main-navigation__left" aria-label="<?php echo esc_attr__( 'Main Navigation', 'fictioneer' ); ?>">

          <button class="mobile-menu-button" data-fictioneer-alerts-target="newAlertsDisplay" data-action="click->fictioneer#toggleMobileMenu">
            <?php
              fictioneer_icon( 'fa-bars', 'off' );
              fictioneer_icon( 'fa-xmark', 'on' );
            ?>
            <span class="mobile-menu-button__label"><?php _ex( 'Menu' , 'Mobile menu label', 'fictioneer' ); ?></span>
          </button>

          <?php
            if ( ! function_exists( 'elementor_theme_do_location' ) || ! elementor_theme_do_location( 'nav_menu' ) ) {
              if ( has_nav_menu( 'nav_menu' ) ) {
                $menu = null;

                if ( fictioneer_enable_menu_transients( 'nav_menu' ) ) {
                  $menu = get_transient( 'fictioneer_fcnmm_nav_menu_html' );
                }

                if ( empty( $menu ) ) {
                  $menu = wp_nav_menu(
                    array(
                      'theme_location' => 'nav_menu',
                      'menu_class' => 'main-navigation__list',
                      'container' => '',
                      'menu_id' => 'menu-navigation',
                      'items_wrap' => '<ul id="%1$s" data-menu-id="main" class="%2$s">%3$s</ul>',
                      'echo' => false
                    )
                  );

                  if ( $menu !== false ) {
                    $menu = str_replace( ['current_page_item', 'current-menu-item', 'aria-current="page"'], '', $menu );
                  }

                  if ( fictioneer_enable_menu_transients( 'nav_menu' ) ) {
                    set_transient( 'fictioneer_fcnmm_nav_menu_html', $menu );
                  }
                }

                fictioneer_add_taxonomy_submenus( $menu );

                echo $menu;
              }
            }
          ?>
        </nav>

        <?php do_action( 'fictioneer_navigation_wrapper_end', $args ); ?>

      <?php endif; ?>

    </div>

    <?php do_action( 'fictioneer_navigation_bottom', $args ); ?>

  </div>
  <?php // <--- End HTML
}
add_action( 'fictioneer_site', 'fcnmm_navigation_bar', 21 );

/**
 * Purges nav menu Transients on menu updates
 *
 * @since 1.0.0
 */

function fcnmm_purge_nav_menu_transients() {
  delete_transient( 'fictioneer_fcnmm_nav_menu_html' );
}
add_action( 'wp_update_nav_menu', 'fcnmm_purge_nav_menu_transients' );

/**
 * Outputs the HTML for the header image (if any)
 *
 * @since 1.0.0
 * @since 1.0.4 - Considered additional arguments.
 *
 * @param int|null       $args['post_id']              Optional. Current post ID.
 * @param string|null    $args['post_type']            Optional. Current post type.
 * @param int|null       $args['story_id']             Optional. Current story ID (if chapter).
 * @param string|boolean $args['header_image_url']     URL of the filtered header image or false.
 * @param string         $args['header_image_source']  Either default, post, or story.
 * @param array          $args['header_args']          Arguments passed to the header.php partial.
 */

function fcnmm_header_image( $args ) {
  // Abort if...
  if ( ! ( $args['header_image_url'] ?? 0 ) || ( $args['header_args']['no_header'] ?? 0 ) ) {
    return;
  }

  // Setup
  $header_image_style = get_theme_mod( 'header_image_style', 'default' );
  $extra_classes = array(
    "_style-{$header_image_style}",
    "_image-source-{$args['header_image_source']}",
    "_post-{$args['post_id']}"
  );

  if ( absint( get_theme_mod( 'header_image_fading_start', 0 ) ) > 0 ) {
    $extra_classes[] = '_fading-bottom';
  }

  if ( get_theme_mod( 'header_image_shadow', true ) ) {
    $extra_classes[] = '_shadow';
  }

  if ( $args['post_type'] ) {
    $extra_classes[] = '_' . $args['post_type'];
  }

  // Start HTML ---> ?>
  <div class="header-background _fcnmm hide-on-fullscreen polygon <?php echo implode( ' ', $extra_classes ); ?>">
    <div class="header-background__wrapper _fcnmm polygon">
      <img src="<?php echo $args['header_image_url']; ?>" alt="Header Image" class="header-background__image _fcnmm">
    </div>
  </div>
  <?php // <--- End HTML
}
add_action( 'fictioneer_site', 'fcnmm_header_image', 25 );