/*

    Copyright (C) 2016 Apple Inc. All Rights Reserved.

    See LICENSE.txt for this sample’s licensing information

    Abstract:

    This extends CKSubscription to conform to the Result protocol.

*/

import CloudKit

extension CKSubscription: Result {

    var summaryField: String? {

        if subscriptionType == .RecordZone {

            return "RecordZone(\(zoneID!.zoneName))"

        } else if subscriptionType == .Query {

            var info = [String]()

            if let recordType = recordType {

                info.append(recordType)

            }

            if let predicate = predicate {

                info.append(predicate.predicateFormat)

            }

            let queryParams = info.joinWithSeparator(",")

            return "Query(\(queryParams))"

        } else {

            return subscriptionID

        }

    }

    var attributeList: [AttributeGroup] {

        var subscriptionType = ""

        var firesOnRecordCreation = "N"

        var firesOnRecordUpdate = "N"

        var firesOnRecordDeletion = "N"

        var firesOnce = "N"

        switch self.subscriptionType {

        case .RecordZone:

            subscriptionType = "RecordZone"

        case .Query:

            subscriptionType = "Query"

        }

        if subscriptionOptions.contains(.FiresOnRecordCreation) {

            firesOnRecordCreation = "Y"

        }

        if subscriptionOptions.contains(.FiresOnRecordUpdate) {

            firesOnRecordUpdate = "Y"

        }

        if subscriptionOptions.contains(.FiresOnRecordDeletion) {

            firesOnRecordDeletion = "Y"

        }

        if subscriptionOptions.contains(.FiresOnce) {

            firesOnce = "Y"

        }

        var groups = [

            AttributeGroup(title: "", attributes: [

                Attribute(key: "subscriptionID", value: subscriptionID),

                Attribute(key: "subscriptionType", value: subscriptionType),

                Attribute(key: "predicate", value: predicate != nil ? predicate!.predicateFormat : "")

            ]),

            AttributeGroup(title: "Options", attributes: [

                Attribute(key: "FiresOnRecordCreation", value: firesOnRecordCreation),

                Attribute(key: "FiresOnRecordUpdate", value: firesOnRecordUpdate),

                Attribute(key: "FiresOnRecordDeletion", value: firesOnRecordDeletion),

                Attribute(key: "FiresOnce", value: firesOnce)

            ])

        ]

        if let zoneID = zoneID {

            groups[0].attributes += [

                Attribute(key: "zoneID"),

                Attribute(key: "zoneName", value: zoneID.zoneName, isNested: true),

                Attribute(key: "ownerName", value: zoneID.ownerName, isNested: true)

            ]

        }

        return groups

    }

}