//
// Copyright (c) Microsoft. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//

using System.Data;
using Microsoft.SqlTools.Hosting.Protocol.Contracts;
using Microsoft.SqlTools.Utility;

namespace Microsoft.SqlTools.ServiceLayer.QueryExecution.Contracts
{


    public class ColumnInfo
    {
        /// <summary>
        /// Name of this column
        /// </summary>
        public string Name { get; set; }

        public string DataTypeName { get; set; } 

        public ColumnInfo()
        {
        }

        public ColumnInfo(string name, string dataTypeName)
        {
            this.Name = name;
            this.DataTypeName = dataTypeName;
        }
    }

    public interface ISerializationParams
    {
        
        /// <summary>
        /// Path to file that the serialized results will be stored in
        /// </summary>
        string FilePath { get; set; }

        /// <summary>
        /// Results that are to be serialized into 'SaveFormat' format
        /// </summary>
        DbCellValue[][] Rows { get; set; }

        /// <summary>
        /// Whether the current set of Rows passed in is the last for this file
        // </summary>
        bool IsLastBatch { get; set; }
    }
    /// <summary>
    /// Class used for storing results and how the results are to be serialized
    /// </summary>
    public class SerializeDataContinueRequestParams : ISerializationParams
    {
        /// <summary>
        /// Path to file that the serialized results will be stored in
        /// </summary>
        public string FilePath { get; set; }

        /// <summary>
        /// Results that are to be serialized into 'SaveFormat' format
        /// </summary>
        public DbCellValue[][] Rows { get; set; }

        /// <summary>
        /// Whether the current set of Rows passed in is the last for this file
        // </summary>
        public bool IsLastBatch { get; set; }

    }
    /// <summary>
    /// Class used for storing results and how the results are to be serialized
    /// </summary>
    public class SerializeDataStartRequestParams : GeneralRequestDetails, ISerializationParams
    {
        /// <summary>
        /// String representation of the type that service is supposed to serialize to
        ///  E.g. "json" or "csv"
        /// </summary>
        public string SaveFormat { get; set; }

        /// <summary>
        /// Path to file that the serialized results will be stored in
        /// </summary>
        public string FilePath { get; set; }

        /// <summary>
        /// Results that are to be serialized into 'SaveFormat' format
        /// </summary>
        public DbCellValue[][] Rows { get; set; }

        public ColumnInfo[] Columns { get; set; }

        /// <summary>
        /// Whether this is the only request expected for this file.
        // </summary>
        public bool IsLastBatch { get; set; }

        public SerializeDataStartRequestParams()
        {
        }
        /// <summary>
        /// Constructor
        /// </summary>
        public SerializeDataStartRequestParams(string saveFormat, 
            string savePath, 
            DbCellValue[][] rows, 
            bool isLast)
        {
            this.SaveFormat = saveFormat;
            this.FilePath = savePath;
            this.Rows = rows;
            this.IsLastBatch = isLast;
        }

        internal bool IncludeHeaders
        {
            get { return this.GetOptionValue<bool>(SerializationOptionsHelper.IncludeHeaders); }
            set { this.SetOptionValue<bool>(SerializationOptionsHelper.IncludeHeaders, value); }
        }

        internal string Delimiter
        {
            get { return this.GetOptionValue<string>(SerializationOptionsHelper.Delimiter); }
            set { this.SetOptionValue<string>(SerializationOptionsHelper.Delimiter, value); }
        }

        internal string LineSeparator
        {
            get { return this.GetOptionValue<string>(SerializationOptionsHelper.LineSeparator); }
            set { this.SetOptionValue<string>(SerializationOptionsHelper.LineSeparator, value); }
        }

        internal string TextIdentifier
        {
            get { return this.GetOptionValue<string>(SerializationOptionsHelper.TextIdentifier); }
            set { this.SetOptionValue<string>(SerializationOptionsHelper.TextIdentifier, value); }
        }

        internal string Encoding
        {
            get { return this.GetOptionValue<string>(SerializationOptionsHelper.Encoding); }
            set { this.SetOptionValue<string>(SerializationOptionsHelper.Encoding, value); }
        }

        internal bool Formatted
        {
            get { return this.GetOptionValue<bool>(SerializationOptionsHelper.Formatted); }
            set { this.SetOptionValue<bool>(SerializationOptionsHelper.Formatted, value); }
        }

        internal int MaxCharsToStore
        {
            get { return this.GetOptionValue<int>(SerializationOptionsHelper.MaxCharsToStore); }
            set { this.SetOptionValue<int>(SerializationOptionsHelper.Formatted, value); }
        }
    }

    public class SerializeDataResult
    {
        public string Messages { get; set; }

        public bool Succeeded { get; set; }
    }

    public class SerializeStartRequest
    {
        public static readonly RequestType<SerializeDataStartRequestParams, SerializeDataResult> Type = RequestType<SerializeDataStartRequestParams, SerializeDataResult>.Create("serialize/start");
    }
    public class SerializeContinueRequest
    {
        public static readonly RequestType<SerializeDataContinueRequestParams, SerializeDataResult> Type = RequestType<SerializeDataContinueRequestParams, SerializeDataResult>.Create("serialize/continue");
    }

    class SerializationOptionsHelper
    {
        internal const string IncludeHeaders = "includeHeaders";
        internal const string Delimiter = "delimiter";
        internal const string LineSeparator = "lineSeparator";
        internal const string TextIdentifier = "textIdentifier";
        internal const string Encoding = "encoding";
        internal const string Formatted = "formatted";
        internal const string MaxCharsToStore = "maxchars";
    }
}