/*
 * Copyright 2016 Game Server Services, Inc. or its affiliates. All Rights
 * Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using Gs2.Core.Model;
using Gs2.Util.LitJson;
#if UNITY_2017_1_OR_NEWER
using UnityEngine.Scripting;
#endif

namespace Gs2.Gs2Chat.Model
{

#if UNITY_2017_1_OR_NEWER
	[Preserve]
#endif
	public class Message : IComparable
	{
        public string MessageId { set; get; }
        public string RoomName { set; get; }
        public string Name { set; get; }
        public string UserId { set; get; }
        public int? Category { set; get; }
        public string Metadata { set; get; }
        public long? CreatedAt { set; get; }
        public Message WithMessageId(string messageId) {
            this.MessageId = messageId;
            return this;
        }
        public Message WithRoomName(string roomName) {
            this.RoomName = roomName;
            return this;
        }
        public Message WithName(string name) {
            this.Name = name;
            return this;
        }
        public Message WithUserId(string userId) {
            this.UserId = userId;
            return this;
        }
        public Message WithCategory(int? category) {
            this.Category = category;
            return this;
        }
        public Message WithMetadata(string metadata) {
            this.Metadata = metadata;
            return this;
        }
        public Message WithCreatedAt(long? createdAt) {
            this.CreatedAt = createdAt;
            return this;
        }

        private static System.Text.RegularExpressions.Regex _regionRegex = new System.Text.RegularExpressions.Regex(
                @"grn:gs2:(?<region>.+):(?<ownerId>.+):chat:(?<namespaceName>.+):room:(?<roomName>.+):message:(?<messageName>.+)",
                System.Text.RegularExpressions.RegexOptions.IgnoreCase
        );

        public static string GetRegionFromGrn(
            string grn
        )
        {
            var match = _regionRegex.Match(grn);
            if (!match.Success || !match.Groups["region"].Success)
            {
                return null;
            }
            return match.Groups["region"].Value;
        }

        private static System.Text.RegularExpressions.Regex _ownerIdRegex = new System.Text.RegularExpressions.Regex(
                @"grn:gs2:(?<region>.+):(?<ownerId>.+):chat:(?<namespaceName>.+):room:(?<roomName>.+):message:(?<messageName>.+)",
                System.Text.RegularExpressions.RegexOptions.IgnoreCase
        );

        public static string GetOwnerIdFromGrn(
            string grn
        )
        {
            var match = _ownerIdRegex.Match(grn);
            if (!match.Success || !match.Groups["ownerId"].Success)
            {
                return null;
            }
            return match.Groups["ownerId"].Value;
        }

        private static System.Text.RegularExpressions.Regex _namespaceNameRegex = new System.Text.RegularExpressions.Regex(
                @"grn:gs2:(?<region>.+):(?<ownerId>.+):chat:(?<namespaceName>.+):room:(?<roomName>.+):message:(?<messageName>.+)",
                System.Text.RegularExpressions.RegexOptions.IgnoreCase
        );

        public static string GetNamespaceNameFromGrn(
            string grn
        )
        {
            var match = _namespaceNameRegex.Match(grn);
            if (!match.Success || !match.Groups["namespaceName"].Success)
            {
                return null;
            }
            return match.Groups["namespaceName"].Value;
        }

        private static System.Text.RegularExpressions.Regex _roomNameRegex = new System.Text.RegularExpressions.Regex(
                @"grn:gs2:(?<region>.+):(?<ownerId>.+):chat:(?<namespaceName>.+):room:(?<roomName>.+):message:(?<messageName>.+)",
                System.Text.RegularExpressions.RegexOptions.IgnoreCase
        );

        public static string GetRoomNameFromGrn(
            string grn
        )
        {
            var match = _roomNameRegex.Match(grn);
            if (!match.Success || !match.Groups["roomName"].Success)
            {
                return null;
            }
            return match.Groups["roomName"].Value;
        }

        private static System.Text.RegularExpressions.Regex _messageNameRegex = new System.Text.RegularExpressions.Regex(
                @"grn:gs2:(?<region>.+):(?<ownerId>.+):chat:(?<namespaceName>.+):room:(?<roomName>.+):message:(?<messageName>.+)",
                System.Text.RegularExpressions.RegexOptions.IgnoreCase
        );

        public static string GetMessageNameFromGrn(
            string grn
        )
        {
            var match = _messageNameRegex.Match(grn);
            if (!match.Success || !match.Groups["messageName"].Success)
            {
                return null;
            }
            return match.Groups["messageName"].Value;
        }

#if UNITY_2017_1_OR_NEWER
    	[Preserve]
#endif
        public static Message FromJson(JsonData data)
        {
            if (data == null) {
                return null;
            }
            return new Message()
                .WithMessageId(!data.Keys.Contains("messageId") || data["messageId"] == null ? null : data["messageId"].ToString())
                .WithRoomName(!data.Keys.Contains("roomName") || data["roomName"] == null ? null : data["roomName"].ToString())
                .WithName(!data.Keys.Contains("name") || data["name"] == null ? null : data["name"].ToString())
                .WithUserId(!data.Keys.Contains("userId") || data["userId"] == null ? null : data["userId"].ToString())
                .WithCategory(!data.Keys.Contains("category") || data["category"] == null ? null : (int?)int.Parse(data["category"].ToString()))
                .WithMetadata(!data.Keys.Contains("metadata") || data["metadata"] == null ? null : data["metadata"].ToString())
                .WithCreatedAt(!data.Keys.Contains("createdAt") || data["createdAt"] == null ? null : (long?)long.Parse(data["createdAt"].ToString()));
        }

        public JsonData ToJson()
        {
            return new JsonData {
                ["messageId"] = MessageId,
                ["roomName"] = RoomName,
                ["name"] = Name,
                ["userId"] = UserId,
                ["category"] = Category,
                ["metadata"] = Metadata,
                ["createdAt"] = CreatedAt,
            };
        }

        public void WriteJson(JsonWriter writer)
        {
            writer.WriteObjectStart();
            if (MessageId != null) {
                writer.WritePropertyName("messageId");
                writer.Write(MessageId.ToString());
            }
            if (RoomName != null) {
                writer.WritePropertyName("roomName");
                writer.Write(RoomName.ToString());
            }
            if (Name != null) {
                writer.WritePropertyName("name");
                writer.Write(Name.ToString());
            }
            if (UserId != null) {
                writer.WritePropertyName("userId");
                writer.Write(UserId.ToString());
            }
            if (Category != null) {
                writer.WritePropertyName("category");
                writer.Write(int.Parse(Category.ToString()));
            }
            if (Metadata != null) {
                writer.WritePropertyName("metadata");
                writer.Write(Metadata.ToString());
            }
            if (CreatedAt != null) {
                writer.WritePropertyName("createdAt");
                writer.Write(long.Parse(CreatedAt.ToString()));
            }
            writer.WriteObjectEnd();
        }

        public int CompareTo(object obj)
        {
            var other = obj as Message;
            var diff = 0;
            if (MessageId == null && MessageId == other.MessageId)
            {
                // null and null
            }
            else
            {
                diff += MessageId.CompareTo(other.MessageId);
            }
            if (RoomName == null && RoomName == other.RoomName)
            {
                // null and null
            }
            else
            {
                diff += RoomName.CompareTo(other.RoomName);
            }
            if (Name == null && Name == other.Name)
            {
                // null and null
            }
            else
            {
                diff += Name.CompareTo(other.Name);
            }
            if (UserId == null && UserId == other.UserId)
            {
                // null and null
            }
            else
            {
                diff += UserId.CompareTo(other.UserId);
            }
            if (Category == null && Category == other.Category)
            {
                // null and null
            }
            else
            {
                diff += (int)(Category - other.Category);
            }
            if (Metadata == null && Metadata == other.Metadata)
            {
                // null and null
            }
            else
            {
                diff += Metadata.CompareTo(other.Metadata);
            }
            if (CreatedAt == null && CreatedAt == other.CreatedAt)
            {
                // null and null
            }
            else
            {
                diff += (int)(CreatedAt - other.CreatedAt);
            }
            return diff;
        }
    }
}