<?php

/**
 * @api {get} /redirection/v1/log Get logs
 * @apiName GetLogs
 * @apiDescription Get a paged list of redirect logs after applying a set of filters and result ordering.
 * @apiGroup Log
 *
 * @apiUse LogQueryParams
 *
 * @apiUse LogList
 * @apiUse 401Error
 * @apiUse 404Error
 */

/**
 * @api {post} /redirection/v1/log Delete logs
 * @apiName DeleteLogs
 * @apiDescription Delete logs by filter. If no filter is supplied then all entries will be deleted. The endpoint will return the next page of results after.
 * performing the action, based on the supplied query parameters. This information can be used to refresh a list displayed to the client.
 * @apiGroup Log
 *
 * @apiParam (Query Parameter) {String} filterBy[ip] Filter the results by the supplied IP
 * @apiParam (Query Parameter) {String} filterBy[url] Filter the results by the supplied URL
 * @apiParam (Query Parameter) {String} filterBy[url-exact] Filter the results by the exact URL (not a substring match, as per `url`)
 * @apiParam (Query Parameter) {String} filterBy[referrer] Filter the results by the supplied referrer
 * @apiParam (Query Parameter) {String} filterBy[agent] Filter the results by the supplied user agent
 * @apiParam (Query Parameter) {String} filterBy[target] Filter the results by the supplied redirect target
 *
 * @apiUse LogList
 * @apiUse 401Error
 * @apiUse 404Error
 */

/**
 * @api {post} /redirection/v1/bulk/log/:type Bulk action
 * @apiName BulkAction
 * @apiDescription Delete logs by ID
 * @apiGroup Log
 *
 * @apiParam (URL) {String="delete"} :type Type of bulk action that is applied to every log ID.
 * @apiParam (Query Parameter) {String[]} [items] Array of group IDs to perform the action on
 * @apiParam (Query Parameter) {Boolean=false} [global] Perform action globally using the filter parameters
 * @apiUse LogQueryParams
 *
 * @apiUse LogList
 * @apiUse 401Error
 * @apiUse 404Error
 * @apiUse 400MissingError
 */

/**
 * @apiDefine LogQueryParams Log query parameters
 *
 * @apiParam (Query Parameter) {String} [filterBy[ip]] Filter the results by the supplied IP
 * @apiParam (Query Parameter) {String} [filterBy[url]] Filter the results by the supplied URL
 * @apiParam (Query Parameter) {String} [filterBy[url-]exact] Filter the results by the exact URL (not a substring match, as per `url`)
 * @apiParam (Query Parameter) {String} [filterBy[referrer]] Filter the results by the supplied referrer
 * @apiParam (Query Parameter) {String} [filterBy[agent]] Filter the results by the supplied user agent
 * @apiParam (Query Parameter) {String} [filterBy[target]] Filter the results by the supplied redirect target
 * @apiParam (Query Parameter) {String} [filterBy[domain]] Filter the results by the supplied domain name
 * @apiParam (Query Parameter) {String} [filterBy[redirect_by]] Filter the results by the redirect agent
 * @apiParam (Query Parameter) {String="head","get","post"} [filterBy[method]] Filter the results by the supplied HTTP request method
 * @apiParam (Query Parameter) {String="ip","url"} [orderby] Order by IP or URL
 * @apiParam (Query Parameter) {String="asc","desc"} [direction=desc] Direction to order the results by (ascending or descending)
 * @apiParam (Query Parameter) {Integer{1...200}} [per_page=25] Number of results per request
 * @apiParam (Query Parameter) {Integer} [page=0] Current page of results
 * @apiParam (Query Parameter) {String="ip","url"} [groupBy] Group by IP or URL
 */

/**
 * @apiDefine LogList
 *
 * @apiSuccess {Object[]} items Array of log objects
 * @apiSuccess {Integer} items.id ID of log entry
 * @apiSuccess {String} items.created Date the log entry was recorded
 * @apiSuccess {Integer} items.created_time Unix time value for `created`
 * @apiSuccess {Integer} items.url The requested URL that caused the log entry
 * @apiSuccess {String} items.agent User agent of the client initiating the request
 * @apiSuccess {Integer} items.referrer Referrer of the client initiating the request
 * @apiSuccess {Integer} total Number of items
 *
 * @apiSuccessExample {json} Success 200:
 *     HTTP/1.1 200 OK
 *     {
 *       "items": [
 *           {
 *             "id": 3,
 *             "created": "2019-01-01 12:12:00,
 *             "created_time": "12345678",
 *             "url": "/the-url",
 *             "agent": "FancyBrowser",
 *             "referrer": "http://site.com/previous/,
 *           }
 *       ],
 *       "total": 1
 *     }
 */

/**
 * Log API endpoint
 */
class Redirection_Api_Log extends Redirection_Api_Filter_Route {
	/**
	 * Log API endpoint constructor
	 *
	 * @param String $namespace Namespace.
	 */
	public function __construct( $namespace ) {
		$orders = [ 'url', 'ip', 'total', 'count', '' ];
		$filters = [ 'ip', 'url-exact', 'referrer', 'agent', 'url', 'target', 'domain', 'method', 'http', 'redirect_by' ];

		register_rest_route( $namespace, '/log', array(
			'args' => $this->get_filter_args( $orders, $filters ),
			$this->get_route( WP_REST_Server::READABLE, 'route_log', [ $this, 'permission_callback_manage' ] ),
		) );

		register_rest_route( $namespace, '/bulk/log/(?P<bulk>delete)', [
			$this->get_route( WP_REST_Server::EDITABLE, 'route_bulk', [ $this, 'permission_callback_delete' ] ),
			'args' => array_merge( $this->get_filter_args( $orders, $filters ), [
				'items' => [
					'description' => 'Comma separated list of item IDs to perform action on',
					'type' => 'array',
					'items' => [
						'description' => 'Item ID',
						'type' => [ 'string', 'number' ],
					],
				],
			] ),
		] );
	}

	/**
	 * Checks a manage capability
	 *
	 * @param WP_REST_Request $request Request.
	 * @return Bool
	 */
	public function permission_callback_manage( WP_REST_Request $request ) {
		return Redirection_Capabilities::has_access( Redirection_Capabilities::CAP_LOG_MANAGE );
	}

	/**
	 * Checks a delete capability
	 *
	 * @param WP_REST_Request $request Request.
	 * @return Bool
	 */
	public function permission_callback_delete( WP_REST_Request $request ) {
		return Redirection_Capabilities::has_access( Redirection_Capabilities::CAP_LOG_DELETE );
	}

	/**
	 * Get log list
	 *
	 * @param WP_REST_Request $request The request.
	 * @return WP_Error|array Return an array of results, or a WP_Error
	 */
	public function route_log( WP_REST_Request $request ) {
		return $this->get_logs( $request->get_params() );
	}

	/**
	 * Perform bulk action on logs
	 *
	 * @param WP_REST_Request $request The request.
	 * @return WP_Error|array Return an array of results, or a WP_Error
	 */
	public function route_bulk( WP_REST_Request $request ) {
		$params = $request->get_params();

		if ( isset( $params['items'] ) && is_array( $params['items'] ) ) {
			$items = $params['items'];

			foreach ( $items as $item ) {
				if ( is_numeric( $item ) ) {
					Red_Redirect_Log::delete( intval( $item, 10 ) );
				} elseif ( isset( $params['groupBy'] ) ) {
					$delete_by = 'url-exact';

					if ( in_array( $params['groupBy'], [ 'ip', 'agent' ], true ) ) {
						$delete_by = $params['groupBy'];
					}

					Red_Redirect_Log::delete_all( [ 'filterBy' => [ $delete_by => $item ] ] );
				}
			}
		} elseif ( isset( $params['global'] ) && $params['global'] ) {
			Red_Redirect_Log::delete_all( $params );
		}

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

	private function get_logs( array $params ) {
		if ( isset( $params['groupBy'] ) && in_array( $params['groupBy'], [ 'ip', 'url', 'agent' ], true ) ) {
			return Red_Redirect_Log::get_grouped( $params['groupBy'], $params );
		}

		return Red_Redirect_Log::get_filtered( $params );
	}
}