<?php

define('WPCF7CF_SLUG', 'wpcf7cf');
define('WPCF7CF_OPTIONS', WPCF7CF_SLUG.'_options');
define('WPCF7CF_TEXT_DOMAIN', WPCF7CF_SLUG.'_text_domain');

define('WPCF7CF_DEFAULT_ANIMATION', 'yes');
define('WPCF7CF_DEFAULT_ANIMATION_INTIME', 200);
define('WPCF7CF_DEFAULT_ANIMATION_OUTTIME', 200);
define('WPCF7CF_DEFAULT_CONDITIONS_UI', 'normal');
define('WPCF7CF_DEFAULT_NOTICE_DISMISSED', false);

if ( ! defined( 'WPCF7_ADMIN_READ_WRITE_CAPABILITY' ) ) {
	define( 'WPCF7_ADMIN_READ_WRITE_CAPABILITY', 'publish_pages' );
}

global $wpcf7cf_default_settings_glob;
$wpcf7cf_default_settings_glob = false;
function wpcf7cf_get_default_settings() {
    global $wpcf7cf_default_settings_glob;
    if ($wpcf7cf_default_settings_glob) return $wpcf7cf_default_settings_glob;

    $wpcf7cf_default_settings_glob = array(
        'animation' => WPCF7CF_DEFAULT_ANIMATION,
        'animation_intime' => WPCF7CF_DEFAULT_ANIMATION_INTIME,
        'animation_outtime' => WPCF7CF_DEFAULT_ANIMATION_OUTTIME,
        'conditions_ui' => WPCF7CF_DEFAULT_CONDITIONS_UI,
        'notice_dismissed' => WPCF7CF_DEFAULT_NOTICE_DISMISSED
    );
    $wpcf7cf_default_settings_glob = apply_filters('wpcf7cf_default_options', $wpcf7cf_default_settings_glob);
    return $wpcf7cf_default_settings_glob;
}

global $wpcf7cf_settings_glob;
$wpcf7cf_settings_glob = false;
function wpcf7cf_get_settings() {
    global $wpcf7cf_settings_glob;
    if ($wpcf7cf_settings_glob) {
        return $wpcf7cf_settings_glob;
    }

    $wpcf7cf_default_settings = wpcf7cf_get_default_settings();
    $wpcf7cf_saved_settings = get_option(WPCF7CF_OPTIONS);

    if (!$wpcf7cf_saved_settings) {
        $wpcf7cf_saved_settings = [];
    }
    
    $wpcf7cf_settings_glob = array_merge($wpcf7cf_default_settings,$wpcf7cf_saved_settings);

    return $wpcf7cf_settings_glob;
}

function wpcf7cf_get_dismiss_notice_nonce() {
    // We use the same nonce for all admin notices, because we don't care about users trying to hack themselves.
    // This nonce is only intended to prevent CSRF attacks.
    static $nonce = false;
    if (!$nonce) {
        $nonce = wp_create_nonce( 'wpcf7cf_dismiss_notice' );
    }
    return $nonce;
}

function wpcf7cf_set_options($settings) {
    global $wpcf7cf_settings_glob;
    $wpcf7cf_settings_glob = $settings;
    update_option(WPCF7CF_OPTIONS, $wpcf7cf_settings_glob);
}

function wpcf7cf_reset_options() {
    delete_option(WPCF7CF_OPTIONS);
}

add_action( 'admin_enqueue_scripts', 'wpcf7cf_load_page_options_wp_admin_style' );
function wpcf7cf_load_page_options_wp_admin_style() {
    wp_register_style( 'wpcf7cf_admin_css', plugins_url('admin-style.css',__FILE__), [], WPCF7CF_VERSION );
    wp_enqueue_style( 'wpcf7cf_admin_css' );
}


add_action('admin_menu', 'wpcf7cf_admin_add_page');
function wpcf7cf_admin_add_page() {
    add_submenu_page('wpcf7', __( 'Conditional Fields', 'cf7-conditional-fields' ), __( 'Conditional Fields', 'cf7-conditional-fields' ), WPCF7_ADMIN_READ_WRITE_CAPABILITY, 'wpcf7cf', 'wpcf7cf_options_page' );
}

function wpcf7cf_options_page() {
    $settings = wpcf7cf_get_settings();

    if (isset($_POST['reset'])) {
        echo '<div id="message" class="updated fade"><p><strong>' . __( 'Settings restored to defaults', 'cf7-conditional-fields' ) . '</strong></p></div>';
    } else if (isset($_REQUEST['settings-updated'])) {
        echo '<div id="message" class="updated fade"><p><strong>' . __( 'Settings updated', 'cf7-conditional-fields' ) . '</strong></p></div>';
    }

    ?>

    <div class="wrap wpcf7cf-admin-wrap">
        <h2><?php _e( 'Conditional Fields for Contact Form 7 Settings', 'cf7-conditional-fields'); ?></h2>
        <?php if (!$settings['notice_dismissed']) { ?>
        <div class="wpcf7cf-admin-notice notice notice-warning is-dismissible" data-notice-id="" data-nonce="<?php echo wpcf7cf_get_dismiss_notice_nonce() ?>">
            <div style="padding: 10px 0;">
                <?php _e( '<strong>Notice</strong>: These are global settings for Conditional Fields for Contact Form 7.', 'cf7-conditional-fields'); ?>
                <br><br>
                <strong><?php _e( 'How to create/edit conditional fields?', 'cf7-conditional-fields'); ?></strong>
                <ol>
                    <li><?php _e( 'Create a new Contact Form or edit an existing one', 'cf7-conditional-fields'); ?></li>
                    <li><?php _e( 'Create at least one [group] inside the form', 'cf7-conditional-fields'); ?></li>
                    <li><?php _e( 'Save the Contact Form', 'cf7-conditional-fields'); ?></li>
                    <li><?php _e( 'Go to the <strong><em>Conditional Fields</em></strong> Tab', 'cf7-conditional-fields'); ?></li>
                </ol>
                <a href="https://conditional-fields-cf7.bdwm.be/conditional-fields-for-contact-form-7-tutorial/" target="_blank"><?php _e( 'Show me an example', 'cf7-conditional-fields'); ?></a>
            </div>
        </div>
        <?php } ?>
        <form action="options.php" method="post">
            <?php settings_fields(WPCF7CF_OPTIONS); ?>

            <input type="hidden" name="<?php echo WPCF7CF_OPTIONS.'[notice_dismissed]' ?>" value="<?php echo $settings['notice_dismissed'] ?>" />

            <?php

            echo '<h3>' . __( 'Default animation Settings', 'cf7-conditional-fields') . '</h3>';
            wpcf7cf_input_fields_wrapper_start();

            wpcf7cf_input_select('animation', array(
                'label' => __( 'Animation', 'cf7-conditional-fields'),
                'description' => __( 'Use animations while showing/hiding groups', 'cf7-conditional-fields'),
                'select_options' => array('yes' => __( 'Enabled', 'cf7-conditional-fields'), 'no'=> __( 'Disabled', 'cf7-conditional-fields'))
            ));

            wpcf7cf_input_field('animation_intime', array(
                'label' => __( 'Animation In time', 'cf7-conditional-fields'),
                'description' => __( 'A positive integer value indicating the time, in milliseconds, it will take for each group to show.', 'cf7-conditional-fields'),
            ));

            wpcf7cf_input_field('animation_outtime', array(
                'label' => __( 'Animation Out Time', 'cf7-conditional-fields'),
                'description' => __( 'A positive integer value indicating the time, in milliseconds, it will take for each group to hide.', 'cf7-conditional-fields'),
            ));

            wpcf7cf_input_fields_wrapper_end();
            submit_button();

            if (!WPCF7CF_IS_PRO) {
                ?>
                <h3><?php _e( 'Conditional Fields  PRO', 'cf7-conditional-fields'); ?></h3>
                <?php _e( 'Get Conditional Fields  PRO to unlock the full potential of CF7', 'cf7-conditional-fields'); ?>
                <ul class="wpcf7cf-list">
                    <li><a target="_blank" href="https://conditional-fields-cf7.bdwm.be/repeater/"><?php _e( 'Repeatable fields', 'cf7-conditional-fields'); ?></a></li>
                    <li><a target="_blank" href="https://conditional-fields-cf7.bdwm.be/multistep/"><?php _e( 'Multistep forms (with Summary)', 'cf7-conditional-fields'); ?></a></li>
                    <li><a target="_blank" href="https://conditional-fields-cf7.bdwm.be/regular-expressions/"><?php _e( 'Define conditions with regular expression', 'cf7-conditional-fields'); ?></a></li>
                    <li><a target="_blank" href="https://conditional-fields-cf7.bdwm.be/advanced-conditional-logic-with-custom-javascript-functions/"><?php _e( 'Define conditions with custom javascript functions', 'cf7-conditional-fields'); ?></a></li>
                    <li><a target="_blank" href="https://conditional-fields-cf7.bdwm.be/multifile/"><?php _e( 'Multiple file upload', 'cf7-conditional-fields'); ?></a></li>
                    <li><?php _e( 'More comming soon (Calculated Fields, ...)', 'cf7-conditional-fields'); ?></li>
                </ul>
                <p><a target="_blank" class="button button-primary" href="https://shop.bdwm.be/conditional-fields-pro/"><?php _e( 'Get PRO', 'cf7-conditional-fields'); ?></a></p>
                <?php
            }
            do_action('wpcf7cf_after_animation_settings');

            echo '<h3>' . __( 'Advanced Settings', 'cf7-conditional-fields') . '</h3>';
            wpcf7cf_input_fields_wrapper_start();

            wpcf7cf_input_select('conditions_ui', array(
                'label' => __( 'Conditional Fields UI', 'cf7-conditional-fields'),
                'description' => sprintf( 
                    // translators: max recommended conditions
                    __( 'If you want to add more than %s conditions, it\'s recommended to switch to <strong>Text mode</strong> mode for better performance.', 'cf7-conditional-fields' ), WPCF7CF_MAX_RECOMMENDED_CONDITIONS ),
                'select_options' => array('normal'=> __( 'Normal', 'cf7-conditional-fields'), 'text_only' => __( 'Text mode', 'cf7-conditional-fields'))
            ));
            
            wpcf7cf_input_fields_wrapper_end();

            submit_button();

            ?>

        </form></div>

    <h3><?php _e( 'Restore Default Settings', 'cf7-conditional-fields' ); ?></h3>
    <form method="post" id="reset-form" action="">
        <p class="submit">
            <input name="reset" class="button button-secondary" type="submit" value="<?php _e( 'Restore defaults', 'cf7-conditional-fields' ); ?>" >
            <?php wp_nonce_field( 'wpcf7cf_reset_options' ); ?>
            <input type="hidden" name="action" value="reset" />
        </p>
    </form>
    <script>
        (function($){
            $('#reset-form').submit(function() {
                return confirm( __( 'Are you sure you want to reset the plugin settings to the default values? All changes you have previously made will be lost.', 'cf7-conditional-fields' ) );
            });
        }(jQuery))
    </script>

    <?php
}

function wpcf7cf_input_fields_wrapper_start() {
    echo '<table class="form-table" role="presentation"><tbody>';
}
function wpcf7cf_input_fields_wrapper_end() {
    echo '</tbody></table>';
}

function wpcf7cf_input_field($slug, $args) {
    $settings = wpcf7cf_get_settings();

    $defaults = array(
        'label'=>'',
        'desription' => '',
        'default' => wpcf7cf_get_default_settings()[$slug],
        'label_editable' => false
    );

    $args = wp_parse_args( $args, $defaults );
    extract($args);

    $label; $description; $default; $label_editable;

    if (!key_exists($slug, $settings)) {
        $settings[$slug] = $default;
        $settings[$slug.'_label'] = $label;
    }

    ?>

    <tr>
        <th scope="row">

            <?php if ($label_editable) { ?>
                <span class="label editable"><input type="text" data-default-value="<?php echo $label ?>" value="<?php echo $settings[$slug.'_label'] ?>" id="<?php echo WPCF7CF_OPTIONS.'_'.$slug.'_label' ?>" name="<?php echo WPCF7CF_OPTIONS.'['.$slug.'_label]' ?>"></span>
            <?php } else { ?>
                <label for="<?php echo WPCF7CF_OPTIONS.'_'.$slug ?>"><?php echo $label ?></label>
            <?php } ?>

        </th>
        <td>
            <input type="text" data-default-value="<?php echo $default ?>" value="<?php echo htmlspecialchars($settings[$slug]) ?>" id="<?php echo WPCF7CF_OPTIONS.'_'.$slug ?>" name="<?php echo WPCF7CF_OPTIONS.'['.$slug.']' ?>">
            <p class="description" id="<?php echo WPCF7CF_OPTIONS.'_'.$slug ?>-description">
                <?php echo $description ?><?php if (!empty($default)) echo ' (' . __( 'Default:', 'cf7-conditional-fields' ) . ' '.$default.')' ?>
            </p>
        </td>
    </tr>

    <?php

}

function wpcf7cf_input_select($slug, $args) {
    $settings = wpcf7cf_get_settings();

    $defaults = array(
        'label'=>'',
        'desription' => '',
        'select_options' => array(), // array($name => $value)
        'default' => wpcf7cf_get_default_settings()[$slug],
    );

    $args = wp_parse_args( $args, $defaults );
    extract($args);

    $label; $description; $select_options; $default;

    if (!key_exists($slug, $settings)) {
        $settings[$slug] = $default;
    }

    ?>
        <tr>
            <th scope="row"><label for="<?php echo WPCF7CF_OPTIONS.'_'.$slug ?>"><?php echo $label ?></label></th>
            <td>
                <select id="<?php echo WPCF7CF_OPTIONS.'_'.$slug ?>" data-default-value="<?php echo $default ?>" name="<?php echo WPCF7CF_OPTIONS.'['.$slug.']' ?>">
                    <?php foreach($select_options as $value => $text) { ?>
                        <option value="<?php echo htmlspecialchars( $value ) ?>" <?php echo $settings[$slug]==$value?'selected':'' ?>><?php echo $text ?></option>
                    <?php } ?>
                </select>
                <p class="description" id="<?php echo WPCF7CF_OPTIONS.'_'.$slug ?>-description">
                    <?php echo $description ?><?php if (!empty($default)) echo ' (' . __( 'Default:', 'cf7-conditional-fields' ) . ' '.$select_options[$default].')' ?>
                </p>
            </td>
        </tr>
    <?php
}

add_action('admin_init', 'wpcf7cf_admin_init');
function wpcf7cf_admin_init(){

    if(isset($_POST['reset']) && current_user_can( 'wpcf7_edit_contact_forms' ) && wp_verify_nonce( $_POST['_wpnonce'], 'wpcf7cf_reset_options' )) {
        wpcf7cf_reset_options();
    }

    register_setting( WPCF7CF_OPTIONS, WPCF7CF_OPTIONS, 'wpcf7cf_options_sanitize' );
}

function wpcf7cf_options_sanitize($input) {
    return $input;
}

add_action( 'wp_ajax_wpcf7cf_dismiss_notice', 'wpcf7cf_dismiss_notice' );
function wpcf7cf_dismiss_notice() {

    // check nonce
    if ( ! isset( $_POST['nonce'] ) || ! wp_verify_nonce( $_POST['nonce'], 'wpcf7cf_dismiss_notice' ) ) {
        wp_send_json_error( array( 'message' => __( 'Nonce verification failed', 'cf7-conditional-fields' ) ) );
    }

    $notice_id = sanitize_text_field($_POST['noticeId'] ?? '');
    $notice_suffix = $notice_id ? '_'.$notice_id : $notice_id;

    $settings = wpcf7cf_get_settings();
    $settings['notice_dismissed'.$notice_suffix] = true;
    wpcf7cf_set_options($settings);
}