isotopsweden/wp-cargo

<?php

namespace Isotop\Cargo\Content;

use Isotop\Cargo\Contracts\Content_Interface;

abstract class Abstract_Content implements Content_Interface {

    /**
     * Content data.
     *
     * @var array
     */
    protected $data = [];

    /**
     * Set action.
     *
     * @var string
     */
    protected $action = 'update';

    /**
     * Content type.
     *
     * @var string
     */
    protected $type;

    /**
     * Add value to content data.
     *
     * @param string $key
     * @param mixed  $value
     */
    public function add( string $key, $value ) {
        if ( ! is_array( $this->data ) ) {
            return;
        }

        $this->data[$key] = $value;
    }

    /**
     * Cast string value.
     *
     * @param  mixed $str
     *
     * @return mixed
     */
    protected function cast_string( $str ) {
        if ( ! is_string( $str ) ) {
            return $str;
        }

        if ( is_numeric( $str ) ) {
            return $str == (int) $str ? (int) $str : (float) $str;
        }

        if ( $str === 'true' || $str === 'false' ) {
            return $str === 'true';
        }

        return maybe_unserialize( $str );
    }

    /**
     * Create content data.
     *
     * @param string $type
     * @param mixed  $data
     */
    public function create( string $type, $data ) {
        $this->type = $type;
        $this->data = (array) $data;
    }

    /**
     * Get content data.
     *
     * @return array
     */
    public function data() {
        return $this->data;
    }

    /**
     * Get content type.
     *
     * @return string
     */
    public function type() {
        return $this->type;
    }

    /**
     * Get content action.
     *
     * @return string
     */
    public function action() {
        return $this->action;
    }

    /**
     * Prepare meta value.
     *
     * @param  int   $object_id
     * @param  array $meta
     *
     * @return mixed
     */
    protected function prepare_meta( $object_id, $meta ) {
        if ( ! is_array( $meta ) ) {
            return [];
        }

        $result = [];

        foreach ( $meta as $slug => $value1 ) {
            if ( is_array( $value1 ) && count( $value1 ) === 1 ) {
                $value1 = $value1[0];
            }

            /**
             * Modify meta value.
             *
             * @param  int    $object_id
             * @param  string $slug
             * @param  mixed  $value1
             * @param  string $type
             *
             * @return mixed
             */
            $value2 = apply_filters( 'cargo_prepare_meta_value', $object_id, $slug, $value1, $this->type );

            if ( is_null( $value2 ) ) {
                continue;
            }

            if ( $value1 === $value2 || ! is_array( $value2 ) ) {
                $value2 = $this->cast_string( $value2 );
                $type   = gettype( $value2 );

                if ( empty( $type ) ) {
                    continue;
                }

                $value2 = [
                    'slug'  => $slug,
                    'title' => '',
                    'type'  => $type,
                    'value' => $value2
                ];
            }

            $result[] = $value2;
        }

        return $result;
    }

    /**
     * Set content action.
     *
     * @param  string $action
     */
    public function set_action( string $action ) {
        $this->action = $action;
    }

    /**
     * Get JSON string for content data.
     *
     * @return mixed
     */
    public function to_json() {
        if ( ! $this->valid_data() ) {
            return false;
        }

        /**
         * Modify content data before it's encoded to JSON.
         *
         * @param  array  $data
         * @param  string $type
         *
         * @return array
         */
        $data = apply_filters( 'cargo_modify_content_data', $this->data, $this->type );

        return wp_json_encode( [
            'action' => $this->action,
            'type'   => $this->type,
            'data'   => $data
        ] );
    }

    /**
     * Is the content data valid?
     *
     * @return bool
     */
    protected function valid_data() {
        return ! is_wp_error( $this->data ) && ! empty( $this->data );
    }
}