using OI.Metrology.Shared.DataModels;
using OI.Metrology.Shared.Models.Stateless;
using OI.Metrology.Shared.Repositories;
using System.Data;
using System.Data.Common;
using System.Text;
using System.Text.Json;

namespace OI.Metrology.Server.Repository;

public class InfinityQSRepository : IInfinityQSRepository
{

    private readonly IDbConnectionFactory _DBConnectionFactory;

    public InfinityQSRepository(IDbConnectionFactory dbConnectionFactory) => _DBConnectionFactory = dbConnectionFactory;

    string IInfinityQSRepository.GetCommandText(string? subGroupId, string? process, string? job, string? part, string? lot, string? dateTime)
    {
        StringBuilder result = new();
        const string dateTimeFormat = "yyyy-MM-dd HH:mm:ss";
        if (!string.IsNullOrEmpty(dateTime) && (dateTime.Contains('-') || dateTime.Contains(' ') || dateTime.Contains(':')) && dateTime.Length != dateTimeFormat.Length)
            throw new ArgumentException(nameof(dateTime));
        _ = result
                .AppendLine(" select ")
                .AppendLine("       se.f_sgrp se_sgrp, ")
                .AppendLine("       se.f_sgtm se_sgtm, ")
                .AppendLine("       se.f_tsno se_tsno, ")
                .AppendLine("       se.f_val se_val, ")
                .AppendLine("       rd.f_name rd_name, ")
                .AppendLine("       jd.f_name jd_name, ")
                .AppendLine("       pl.f_name pl_name, ")
                .AppendLine("       pd.f_name pd_name, ")
                .AppendLine("       td.f_test td_test, ")
                .AppendLine("       td.f_name td_name, ")
                .AppendLine("       (select count(ev.f_evnt) ")
                .AppendLine("       from [spcepiworld].[dbo].[evnt_inf] ev ")
                .AppendLine("       where ev.f_prcs = rd.f_prcs ")
                .AppendLine("         and ev.f_part = pd.f_part ")
                .AppendLine("         and ev.f_sgtm = se.f_sgtm) ev_count ")
                .AppendLine(" from [spcepiworld].[dbo].[sgrp_ext] se ")
                .AppendLine(" join [spcepiworld].[dbo].[prcs_dat] rd ")
                .AppendLine("   on se.f_prcs = rd.f_prcs ")
                .AppendLine(" join [spcepiworld].[dbo].[job_dat] jd ")
                .AppendLine("   on se.f_job = jd.f_job ")
                .AppendLine(" join [spcepiworld].[dbo].[part_lot] pl ")
                .AppendLine("   on se.f_lot = pl.f_lot ")
                .AppendLine(" join [spcepiworld].[dbo].[part_dat] pd ")
                .AppendLine("   on se.f_part = pd.f_part ")
                .AppendLine(" join [spcepiworld].[dbo].[test_dat] td  ")
                .AppendLine("   on se.f_test = td.f_test ")
                .AppendLine(" where se.f_flag = 0 ");
        if (!string.IsNullOrEmpty(subGroupId))
            _ = result.Append("   and se.f_sgrp = ").Append(subGroupId.Split(" ")[0]).AppendLine("  ");
        if (!string.IsNullOrEmpty(process))
            _ = result.Append("   and rd.f_name = '").Append(process).AppendLine("' ");
        if (!string.IsNullOrEmpty(part))
            _ = result.Append("   and pd.f_name = '").Append(part).AppendLine("' ");
        if (!string.IsNullOrEmpty(job))
            _ = result.Append("   and jd.f_name = '").Append(job).AppendLine("' ");
        if (!string.IsNullOrEmpty(lot))
            _ = result.Append("   and pl.f_name = '").Append(lot).AppendLine("' ");
        if (!string.IsNullOrEmpty(dateTime) && (dateTime.Contains('-') || dateTime.Contains(' ') || dateTime.Contains(':')))
            _ = result.Append("   and dateadd(HH, -7, (dateadd(SS, convert(bigint, se.f_sgtm), '19700101'))) = '").Append(dateTime).AppendLine("' ");
        _ = result.AppendLine("   for json path ");
        return result.ToString();
    }

    private static StringBuilder GetForJsonPath(IDbConnectionFactory dbConnectionFactory, string commandText)
    {
        StringBuilder stringBuilder = new();
        using DbConnection dbConnection = dbConnectionFactory.GetDbConnection();
        DbCommand dbCommand = dbConnection.CreateCommand();
        dbCommand.CommandText = commandText;
        DbDataReader dbDataReader = dbCommand.ExecuteReader(CommandBehavior.SequentialAccess);
        while (dbDataReader.Read())
            _ = stringBuilder.Append(dbDataReader.GetString(0));
        return stringBuilder;
    }

    private static InfinityQSBase GetInfinityQSBase(IDbConnectionFactory dbConnectionFactory, IInfinityQSRepository infinityQSRepository, string subGroupId)
    {
        InfinityQSBase result;
        string commandText = infinityQSRepository.GetCommandText(subGroupId, process: string.Empty, job: string.Empty, part: string.Empty, lot: string.Empty, dateTime: string.Empty);
        StringBuilder stringBuilder = GetForJsonPath(dbConnectionFactory, commandText);
        InfinityQSBase[]? results = JsonSerializer.Deserialize<InfinityQSBase[]>(stringBuilder.ToString());
        if (results is null)
            throw new NullReferenceException(nameof(results));
        if (results.Select(l => l.SubGroupId).Distinct().Count() != 1)
            throw new NotSupportedException("Multiple ids are present!");
        result = results.First();
        return result;
    }

    Result<InfinityQSBase[]> IInfinityQSRepository.GetData(string subGroupId)
    {
        Result<InfinityQSBase[]>? result;
        IInfinityQSRepository infinityQSRepository = this;
        InfinityQSBase infinityQSBase = GetInfinityQSBase(_DBConnectionFactory, infinityQSRepository, subGroupId);
        string commandText = infinityQSRepository.GetCommandText(subGroupId, process: infinityQSBase.Process, job: infinityQSBase.Job, part: infinityQSBase.Part, lot: infinityQSBase.Lot, dateTime: string.Concat(infinityQSBase.SubGroupDateTime));
        StringBuilder stringBuilder = GetForJsonPath(_DBConnectionFactory, commandText);
        InfinityQSBase[]? results = JsonSerializer.Deserialize<InfinityQSBase[]>(stringBuilder.ToString());
        if (results is null)
            throw new NullReferenceException(nameof(results));
        result = new()
        {
            Results = results,
            TotalRows = results.Length,
        };
        return result;
    }

    Result<InfinityQSEvent[]> IInfinityQSRepository.GetEvents(string subGroupId)
    {
        Result<InfinityQSEvent[]>? result;
        IInfinityQSRepository infinityQSRepository = this;
        InfinityQSEvent[]? results;
        InfinityQSBase infinityQSBase = GetInfinityQSBase(_DBConnectionFactory, infinityQSRepository, subGroupId);
        if (!infinityQSBase.EventCount.HasValue || infinityQSBase.EventCount.Value <= 0)
            results = Array.Empty<InfinityQSEvent>();
        else
        {
            string commandText = $"select * from [spcepiworld].[dbo].[evnt_inf] ev where ev.f_prcs = '{infinityQSBase.Process}' and ev.f_part = '{infinityQSBase.Part}' and ev.f_sgtm = {infinityQSBase.SubGroupDateTime} ";
            StringBuilder stringBuilder = GetForJsonPath(_DBConnectionFactory, commandText);
            results = JsonSerializer.Deserialize<InfinityQSEvent[]>(stringBuilder.ToString());
            if (results is null)
                throw new NullReferenceException(nameof(results));
        }
        result = new()
        {
            Results = results,
            TotalRows = results.Length,
        };
        return result;
    }

    Result<InfinityQSBase[]> IInfinityQSRepository.GetHeader(string subGroupId)
    {
        Result<InfinityQSBase[]>? result;
        IInfinityQSRepository infinityQSRepository = this;
        InfinityQSBase infinityQSBase = GetInfinityQSBase(_DBConnectionFactory, infinityQSRepository, subGroupId);
        InfinityQSBase[] results = new InfinityQSBase[] { infinityQSBase };
        result = new()
        {
            Results = results,
            TotalRows = results.Length,
        };
        return result;
    }

}