using System.Collections.Generic;
using System.Text;

namespace DTS.Serialization.Iso.Report
{
    /// <summary>
    /// this is a class to simplify outputting a summary report
    /// http://manuscript.dts.local/f/cases/43495/Add-Summary-report-text-file-in-import-wizard
    /// http://manuscript.dts.local/f/cases/43833/SW-Test-Summary-Report-for-data-collection-THF
    /// </summary>
    public class SummaryReport
    {
        private readonly List<ChannelData> _channels = new List<ChannelData>();

        private const string NUMBER_OF_CHANNELS = "Number of channels";        
        public string GetLines()
        {
            var sb = new StringBuilder();
            sb.AppendLine($"{NUMBER_OF_CHANNELS}          :{_channels.Count:000} /  /  /  /  /");

            foreach (var channel in _channels)
            {
                sb.AppendLine(channel.GetLine());
            }
            return sb.ToString();
        }
        protected void AddChannels(Test.Module.Channel[] channels)
        {
            foreach( var channel in channels)
            {
                _channels.Add(ChannelData.CreateChannel(channel));
            }
            _channels.Sort((a, b) => a.ChannelNumber.CompareTo(b.ChannelNumber));            
        }
        /// <summary>
        /// creates a test summary report given test data
        /// </summary>
        /// <param name="test"></param>
        /// <returns></returns>
        public static SummaryReport CreateSummaryReport(Test test)
        {
            var report = new SummaryReport();
            report.AddChannels([.. test.Channels]);            
            return report;
        }
        /// <summary>
        /// outputs to path given test setup summary
        /// can throw exceptions
        /// </summary>
        /// <param name="path"></param>
        /// <param name="summary"></param>
        public static void OutputToPath(string path, SummaryReport summary)
        {
            System.IO.File.WriteAllText(System.IO.Path.Combine(path, "TestNo_FilterList.txt"), summary.GetLines());
        }
    }    
}