<?php
/**
 * Own profile and profile field endpoints.
 *
 * @package SpaceBay
 */

namespace SpaceBay\Rest;

use SpaceBay\Members\MemberDirectory;
use SpaceBay\Members\Profiles;
use SpaceBay\Notifications\Preferences;
use SpaceBay\Support\RateLimit;
use WP_Error;
use WP_REST_Request;
use WP_REST_Response;
use WP_REST_Server;

defined( 'ABSPATH' ) || exit;

/**
 * Lets members edit their own profile, photo, cover and email preferences.
 */
final class ProfileController extends Controller {

	/**
	 * Registers the routes.
	 *
	 * @return void
	 */
	public function register_routes() {
		register_rest_route(
			$this->namespace,
			'/me/profile',
			array(
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_item' ),
					'permission_callback' => array( $this, 'permission_logged_in' ),
				),
				array(
					'methods'             => WP_REST_Server::EDITABLE,
					'callback'            => array( $this, 'update_item' ),
					'permission_callback' => array( $this, 'permission_logged_in' ),
					'args'                => array(
						'display_name' => array( 'type' => 'string' ),
						'headline'     => array( 'type' => 'string' ),
						'bio'          => array( 'type' => 'string' ),
						'website'      => array( 'type' => 'string' ),
						'location'     => array( 'type' => 'string' ),
						'privacy'      => array(
							'type' => 'string',
							'enum' => Profiles::PRIVACY,
						),
						'fields'       => array( 'type' => 'object' ),
					),
				),
			)
		);

		foreach ( array( 'avatar', 'cover' ) as $kind ) {
			register_rest_route(
				$this->namespace,
				'/me/' . $kind,
				array(
					array(
						'methods'             => WP_REST_Server::CREATABLE,
						'callback'            => array( $this, 'upload_' . $kind ),
						'permission_callback' => array( $this, 'permission_logged_in' ),
					),
					array(
						'methods'             => WP_REST_Server::DELETABLE,
						'callback'            => array( $this, 'delete_' . $kind ),
						'permission_callback' => array( $this, 'permission_logged_in' ),
					),
				)
			);
		}

		register_rest_route(
			$this->namespace,
			'/me/email-preferences',
			array(
				array(
					'methods'             => WP_REST_Server::READABLE,
					'callback'            => array( $this, 'get_preferences' ),
					'permission_callback' => array( $this, 'permission_logged_in' ),
				),
				array(
					'methods'             => WP_REST_Server::EDITABLE,
					'callback'            => array( $this, 'update_preferences' ),
					'permission_callback' => array( $this, 'permission_logged_in' ),
				),
			)
		);
	}

	/**
	 * Returns the current member's own profile.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response
	 */
	public function get_item( $request ) {
		unset( $request );

		$user_id = get_current_user_id();
		Profiles::ensure( $user_id );

		return rest_ensure_response( MemberDirectory::profile( get_userdata( $user_id ), Profiles::get( $user_id ), $user_id ) );
	}

	/**
	 * Saves the current member's profile.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response|WP_Error
	 */
	public function update_item( $request ) {
		$limited = \SpaceBay\Support\RateLimit::hit( 'profile', get_current_user_id(), 20 );

		if ( is_wp_error( $limited ) ) {
			return $limited;
		}

		$input = array();

		foreach ( array( 'display_name', 'headline', 'bio', 'website', 'location', 'privacy', 'fields' ) as $key ) {
			if ( $request->has_param( $key ) ) {
				$input[ $key ] = $request->get_param( $key );
			}
		}

		$result = Profiles::update( get_current_user_id(), $input );

		if ( is_wp_error( $result ) ) {
			return $result;
		}

		clean_user_cache( get_current_user_id() );

		return $this->get_item( $request );
	}

	/**
	 * Uploads a new profile photo.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response|WP_Error
	 */
	public function upload_avatar( $request ) {
		return $this->upload( $request, 'avatar' );
	}

	/**
	 * Uploads a new cover image.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response|WP_Error
	 */
	public function upload_cover( $request ) {
		return $this->upload( $request, 'cover' );
	}

	/**
	 * Removes the profile photo.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response
	 */
	public function delete_avatar( $request ) {
		Profiles::remove_image( get_current_user_id(), 'avatar' );

		return $this->get_item( $request );
	}

	/**
	 * Removes the cover image.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response
	 */
	public function delete_cover( $request ) {
		Profiles::remove_image( get_current_user_id(), 'cover' );

		return $this->get_item( $request );
	}

	/**
	 * Saves an uploaded profile image.
	 *
	 * @param WP_REST_Request $request Request.
	 * @param string          $kind    "avatar" or "cover".
	 * @return WP_REST_Response|WP_Error
	 */
	private function upload( $request, $kind ) {
		$files = $request->get_file_params();

		if ( empty( $files['file'] ) || ! is_array( $files['file'] ) ) {
			return new WP_Error( 'spacebay_no_file', __( 'Please choose an image to upload.', 'spacebay' ), array( 'status' => 400 ) );
		}

		$limited = RateLimit::hit( 'upload', get_current_user_id(), 20 );

		if ( is_wp_error( $limited ) ) {
			return $limited;
		}

		$result = Profiles::set_image( get_current_user_id(), $kind, $files['file'] );

		if ( is_wp_error( $result ) ) {
			return $result;
		}

		return $this->get_item( $request );
	}

	/**
	 * Returns the member's email notification choices.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response
	 */
	public function get_preferences( $request ) {
		unset( $request );

		return rest_ensure_response( Preferences::get( get_current_user_id() ) );
	}

	/**
	 * Saves the member's email notification choices.
	 *
	 * @param WP_REST_Request $request Request.
	 * @return WP_REST_Response
	 */
	public function update_preferences( $request ) {
		return rest_ensure_response( Preferences::update( get_current_user_id(), (array) $request->get_json_params() ) );
	}
}