using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using Dapper;
using DataModel.Models;

namespace DataModel.Process
{
    /// <summary>
    /// Work center tracking functions for LotFinderDB interface
    /// </summary>
    public partial class LotFinderDB
    {
        /// <summary>
        /// Query to find profit centers with matching code or description
        /// </summary>
        private const string SQL_SEARCH_WORK_CENTERS = @"
            SELECT TOP 25
                    wc.Code,
                    wc.Description,
                    wc.LastUpdateDT
            FROM    dbo.WorkCenter AS wc
            WHERE   wc.Code LIKE '%' + @filter + '%' OR
                    wc.Description LIKE '%' + @filter + '%'
            ORDER BY wc.Code";

        /// <summary>
        /// Finds work centers with matching code or description
        /// </summary>
        /// <param name="filter">Search filter</param>
        /// <returns>Work centers with matching code or description</returns>
        public static List<WorkCenter> SearchWorkCenters(string filter)
        {
            List<WorkCenter> results = new List<WorkCenter>();

            try
            {
                using (SqlConnection connection = GetConnection())
                {
                    results.AddRange(connection.Query<WorkCenter>(SQL_SEARCH_WORK_CENTERS, new { filter }));
                }
            }
            catch (Exception error)
            {
                //Log and forward exception
                logger.Error("SearchWorkCenters: failed to search for work centers '{0}': {1}.", filter, error.Message);
                throw new Exception($"Failed to search for work centers '{filter}' from LotFinderDB.", error);
            }

            return results;
        }

        /// <summary>
        /// Query to find work orders with matching work order numbers
        /// </summary>
        private const string SQL_LOOKUP_WORK_CENTERS = @"
             SELECT wc.Code,
                    wc.Description,
                    wc.LastUpdateDT
             FROM   dbo.WorkCenter AS wc INNER JOIN
                    @workCenterCodes wc2 ON (wc.Code = wc2.Code)
             ORDER BY wc.Code";

        /// <summary>
        /// Finds work centers with matching work center codes
        /// </summary>
        /// <param name="workCenterCodes">Work center codes to match</param>
        /// <returns>List of matching work centers</returns>
        public static List<WorkCenter> LookupWorkCenters(List<string> workCenterCodes)
        {
            List<WorkCenter> results = new List<WorkCenter>();

            try
            {
                //Create search filter parameter
                DataTable dataTable = new DataTable();
                dataTable.Columns.Add("Code", typeof(string));
                foreach (string workCenter in workCenterCodes)
                {
                    dataTable.Rows.Add(workCenter);
                }

                using (SqlConnection connection = GetConnection())
                {
                    results = connection.Query<WorkCenter>(SQL_LOOKUP_WORK_CENTERS, new { workCenterCodes = dataTable.AsTableValuedParameter("WorkCenterFilterParameter") }).ToList();
                }
            }
            catch (Exception error)
            {
                //Log and forward exception
                logger.Error("LookupWorkCenters: failed to find matching work centers: {0}.", error.Message);
                throw new Exception("LookupWorkCenters: failed to find matching work centers in LotFinderDB.", error);
            }

            return results;
        }
    }
}