<?php

add_filter( 'adfoin_action_providers', 'adfoin_easysendy_actions', 10, 1 );

function adfoin_easysendy_actions( $actions ) {

    $actions['easysendy'] = array(
        'title' => __( 'EasySendy', 'advanced-form-integration' ),
        'tasks' => array(
            'subscribe'   => __( 'Subscribe To List', 'advanced-form-integration' ),
        )
    );

    return $actions;
}

add_filter( 'adfoin_settings_tabs', 'adfoin_easysendy_settings_tab', 10, 1 );

function adfoin_easysendy_settings_tab( $providers ) {
    $providers['easysendy'] = __( 'EasySendy', 'advanced-form-integration' );

    return $providers;
}

add_action( 'adfoin_settings_view', 'adfoin_easysendy_settings_view', 10, 1 );

function adfoin_easysendy_settings_view( $current_tab ) {
    if( $current_tab != 'easysendy' ) {
        return;
    }

    if ( ! class_exists( 'ADFOIN_Account_Manager' ) ) {
        require_once plugin_dir_path( __FILE__ ) . '../../includes/class-adfoin-account-manager.php';
    }

    $fields = array(
        array( 
            'name' => 'apiKey', 
            'label' => __( 'Private API Key', 'advanced-form-integration' ), 
            'type' => 'text', 
            'required' => true,
            'mask' => true,
            'placeholder' => __( 'Enter your API Key', 'advanced-form-integration' ),
            'show_in_table' => true
        )
    );

    $instructions = sprintf(
        '<p>%s</p>',
        __('Click on the profile icon > APIs then create API Key. Copy the private key here.', 'advanced-form-integration')
    );

    ADFOIN_Account_Manager::render_settings_view( 'easysendy', __( 'EasySendy', 'advanced-form-integration' ), $fields, $instructions );
}

add_action( 'wp_ajax_adfoin_get_easysendy_credentials', 'adfoin_get_easysendy_credentials', 10, 0 );
/*
 * Get EasySendy credentials
 */
function adfoin_get_easysendy_credentials() {
    if ( ! class_exists( 'ADFOIN_Account_Manager' ) ) {
        require_once plugin_dir_path( __FILE__ ) . '../../includes/class-adfoin-account-manager.php';
    }
    ADFOIN_Account_Manager::ajax_get_credentials_list( 'easysendy' );
}

add_action( 'wp_ajax_adfoin_save_easysendy_credentials', 'adfoin_save_easysendy_credentials', 10, 0 );
/*
 * Save EasySendy credentials
 */
function adfoin_save_easysendy_credentials() {
    if ( ! class_exists( 'ADFOIN_Account_Manager' ) ) {
        require_once plugin_dir_path( __FILE__ ) . '../../includes/class-adfoin-account-manager.php';
    }
    ADFOIN_Account_Manager::ajax_save_credentials( 'easysendy', array( 'apiKey' ) );
}

/*
 * EasySendy Credentials List
 */
function adfoin_easysendy_get_credentials_list() {
    $credentials = adfoin_read_credentials( 'easysendy' );

    foreach ($credentials as $option) {
        printf('<option value="%s">%s</option>', esc_attr($option['id']), esc_html($option['title']));
    }
}

// Legacy single-account import: surfaces old `adfoin_easysendy_*` options
// as a Legacy Account record when the new credentials store is empty.
add_action( 'plugins_loaded', function() {
    if ( class_exists( 'ADFOIN_Account_Manager' ) ) {
        ADFOIN_Account_Manager::register_legacy_option_importer( 'easysendy', array(
            'apiKey' => 'adfoin_easysendy_api_key',
        ) );
    }
}, 20 );

// Deprecated - kept for backward compatibility
add_action( 'admin_post_adfoin_easysendy_save_api_key', 'adfoin_save_easysendy_api_key', 10, 0 );

function adfoin_save_easysendy_api_key() {
    // Security Check
    // Authorization check
    adfoin_require_manage_options();

    if (! wp_verify_nonce( $_POST['_nonce'], 'adfoin_easysendy_settings' ) ) {
        die( __( 'Security check Failed', 'advanced-form-integration' ) );
    }

    $api_key = sanitize_text_field( wp_unslash( $_POST["adfoin_easysendy_api_key"] ) );

    // Save keys
    update_option( "adfoin_easysendy_api_key", $api_key );

    advanced_form_integration_redirect( "admin.php?page=advanced-form-integration-settings&tab=easysendy" );
}

add_action( 'adfoin_add_js_fields', 'adfoin_easysendy_js_fields', 10, 1 );

function adfoin_easysendy_js_fields( $field_data ) {}

add_action( 'adfoin_action_fields', 'adfoin_easysendy_action_fields' );

function adfoin_easysendy_action_fields() {
    ?>
    <script type="text/template" id="easysendy-action-template">
        <table class="form-table">
            <tr valign="top" v-if="action.task == 'subscribe'">
                <th scope="row">
                    <?php esc_attr_e( 'Map Fields', 'advanced-form-integration' ); ?>
                </th>
                <td scope="row">

                </td>
            </tr>

            <tr valign="top" class="alternate" v-if="action.task == 'subscribe'">
                <td scope="row-title">
                    <label for="tablecell">
                        <?php esc_attr_e( 'EasySendy Account', 'advanced-form-integration' ); ?>
                    </label>
                </td>
                <td>
                    <select name="fieldData[credId]" v-model="fielddata.credId" @change="getData">
                        <option value=""> <?php _e( 'Select Account...', 'advanced-form-integration' ); ?> </option>
                        <option v-for="cred in credentialsList" :value="cred.id">{{ cred.title }}</option>
                    </select>                    
                    <a href="<?php echo admin_url( 'admin.php?page=advanced-form-integration-settings&tab=easysendy' ); ?>" target="_blank">
                        <span class="dashicons dashicons-admin-settings"></span>
                        <?php esc_html_e( 'Manage Accounts', 'advanced-form-integration' ); ?>
                    </a>
                                        <div class="afi-spinner" v-bind:class="{'is-active': credentialLoading}"></div>
                </td>
            </tr>

            <tr valign="top" class="alternate" v-if="action.task == 'subscribe'">
                <td scope="row-title">
                    <label for="tablecell">
                        <?php esc_attr_e( 'EasySendy List', 'advanced-form-integration' ); ?>
                    </label>
                </td>
                <td>
                    <select name="fieldData[listId]" v-model="fielddata.listId" required="required">
                        <option value=""> <?php _e( 'Select List...', 'advanced-form-integration' ); ?> </option>
                        <option v-for="(item, index) in fielddata.list" :value="index" > {{item}}  </option>
                    </select>
                    <div class="afi-spinner" v-bind:class="{'is-active': listLoading}"></div>
                </td>
            </tr>

            <editable-field v-for="field in fields" v-bind:key="field.value" v-bind:field="field" v-bind:trigger="trigger" v-bind:action="action" v-bind:fielddata="fielddata"></editable-field>
            <?php adfoin_pro_feature_notice( 'subscribe', 'EasySendy [PRO]', 'custom fields' ); ?>
        </table>
    </script>
    <?php
}

/*
 * EasySendy Request
 */
function adfoin_easysendy_request($endpoint, $method = 'GET', $data = array(), $record = array(), $cred_id = '')
{
    $credentials = adfoin_get_credentials_by_id( 'easysendy', $cred_id );
    $api_key = isset( $credentials['apiKey'] ) ? $credentials['apiKey'] : '';

    // Backward compatibility: fallback to old options if credentials not found
    if( empty( $api_key ) ) {
        $api_key = get_option('adfoin_easysendy_api_key') ? get_option('adfoin_easysendy_api_key') : '';
    }

    if( !$api_key ) {
        return array();
    }

    $base_url = 'http://api.easysendy.com/rest/';
    $url      = $base_url . $endpoint;

    $args = array(
        'timeout' => 20,
        'method'  => $method,
        'headers' => array(
            'Content-Type' => 'application/json'
        ),
    );

    if ('POST' == $method || 'PUT' == $method) {
        $data['api_key'] = $api_key;
        $args['body']    = wp_json_encode( $data );

    }

    $response = wp_remote_request($url, $args);

    // Defensive 429 retry: EasySendy's docs don't formally document rate
    // limiting, but a single short-backoff retry is a harmless guard if the
    // API ever throttles. Honors Retry-After if present.
    if ( 429 == (int) wp_remote_retrieve_response_code( $response ) ) {
        $retry_after = wp_remote_retrieve_header( $response, 'retry-after' );
        $wait        = is_numeric( $retry_after ) ? (int) $retry_after : 2;

        if ( $wait < 1 ) {
            $wait = 1;
        }
        if ( $wait > 30 ) {
            $wait = 30;
        }

        sleep( $wait );
        $response = wp_remote_request( $url, $args );
    }

    if ($record) {
        adfoin_add_to_log($response, $url, $args, $record);
    }

    return $response;
}

add_action( 'wp_ajax_adfoin_get_easysendy_list', 'adfoin_get_easysendy_list', 10, 0 );
/*
 * Get EasySendy subscriber lists
 */
function adfoin_get_easysendy_list() {
    // Security Check (capability + nonce, with isset/unslash/sanitize)
    adfoin_verify_nonce();

    $cred_id = isset( $_POST['credId'] ) ? sanitize_text_field( wp_unslash( $_POST['credId'] ) ) : '';
    $data = adfoin_easysendy_request( 'subscribers_list/lists', 'POST', array(), array(), $cred_id );

    if( is_wp_error( $data ) || empty( $data['body'] ) ) {
        wp_send_json_error();
    }

    $body = json_decode( $data['body'] );

    if( ! isset( $body->lists ) || ! is_array( $body->lists ) ) {
        wp_send_json_error();
    }

    $lists = wp_list_pluck( $body->lists, 'name', 'hash' );

    wp_send_json_success( $lists );
}

add_action( 'adfoin_easysendy_job_queue', 'adfoin_easysendy_job_queue', 10, 1 );

function adfoin_easysendy_job_queue( $data ) {
    adfoin_easysendy_send_data( $data['record'], $data['posted_data'] );
}

/*
 * Handles sending data to EasySendy API
 */
function adfoin_easysendy_send_data( $record, $posted_data ) {

    $record_data = json_decode( $record['data'], true );

    if ( adfoin_check_conditional_logic( $record_data['action_data']['cl'] ?? array(), $posted_data ) ) {
        return;
    }

    $data = $record_data['field_data'];
    $cred_id = isset( $data['credId'] ) ? $data['credId'] : '';
    $task = $record['task'];

    // Backward compatibility: if no cred_id, use first available credential
    if( empty( $cred_id ) ) {
        $all_credentials = adfoin_read_credentials( 'easysendy' );
        if( !empty( $all_credentials ) ) {
            $cred_id = $all_credentials[0]['id'];
        }
    }

    if( $task == 'subscribe' ) {
        $list_id = $data['listId'];
        $email = empty( $data['email'] ) ? '' : trim( adfoin_get_parsed_values( $data['email'], $posted_data ) );
        $fname = empty( $data['firstName'] ) ? '' : adfoin_get_parsed_values( $data['firstName'], $posted_data );
        $lname = empty( $data['lastName'] ) ? '' : adfoin_get_parsed_values( $data['lastName'], $posted_data );

        $data = array(
            'list'  => $list_id,
            'EMAIL' => $email,
            'FNAME' => $fname,
            'LNAME' => $lname
        );

        $return = adfoin_easysendy_request( 'subscriber/add', 'POST', $data, $record, $cred_id );
    }

    return;
}