using Adaptation.Shared;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Text;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace Adaptation.FileHandlers.QS408M;

#nullable enable

internal class Run
{

    public Run(Header header, ReadOnlyCollection<Site> sites, Body body, Footer footer)
    {
        Header = header;
        Sites = sites;
        Body = body;
        Footer = footer;
    }

    public Header Header { get; }
    public ReadOnlyCollection<Site> Sites { get; }
    public Body Body { get; }
    public Footer Footer { get; }

    internal static string GetBefore(string text, int[] i, string search)
    {
        string str;
        string str1;
        int num = text.IndexOf(search, i[0]);
        if (num <= -1)
        {
            str = text.Substring(i[0]);
            i[0] = text.Length;
            str1 = str.Trim();
        }
        else
        {
            str = text.Substring(i[0], num - i[0]);
            i[0] = num + search.Length;
            str1 = str.Trim();
        }
        return str1;
    }

    internal static string GetToEOL(string text, int[] i)
    {
        string result;
        if (text.IndexOf("\n", i[0]) > -1)
            result = GetBefore(text, i, "\n");
        else
            result = GetBefore(text, i, Environment.NewLine);
        return result;
    }

    internal static int ScanPast(string text, int[] i, string search)
    {
        int result;
        int num = text.IndexOf(search, i[0]);
        if (num <= -1)
            result = text.Length;
        else
            result = num + search.Length;
        return result;
    }

    private static void WriteJson(Logistics logistics, List<FileInfo> fileInfoCollection, Run? result)
    {
        FileInfo fileInfo = new($"{logistics.ReportFullPath}.json");
        string json = JsonSerializer.Serialize(result, RunSourceGenerationContext.Default.Run);
        File.WriteAllText(fileInfo.FullName, json);
        File.SetLastWriteTime(fileInfo.FullName, logistics.DateTimeFromSequence);
        fileInfoCollection.Add(fileInfo);
    }

    private static ReadOnlyCollection<string> GetLines(Logistics logistics, JsonElement[]? jsonElements)
    {
        List<string> results = new();
        int columns = 0;
        StringBuilder stringBuilder = new();
        results.Add($"\"Count\",{jsonElements?.Length}");
        results.Add($"\"{nameof(logistics.Sequence)}\",\"{logistics.Sequence}\"");
        results.Add($"\"{nameof(logistics.MesEntity)}\",\"{logistics.MesEntity}\"");
        string dateTimeFromSequence = logistics.DateTimeFromSequence.ToString("MM/dd/yyyy hh:mm:ss tt");
        for (int i = 0; i < jsonElements?.Length;)
        {
            _ = stringBuilder.Append('"').Append(nameof(logistics.DateTimeFromSequence)).Append('"').Append(',');
            foreach (JsonProperty jsonProperty in jsonElements[0].EnumerateObject())
            {
                columns += 1;
                _ = stringBuilder.Append('"').Append(jsonProperty.Name).Append('"').Append(',');
            }
            break;
        }
        if (jsonElements?.Length != 0)
            _ = stringBuilder.Remove(stringBuilder.Length - 1, 1);
        results.Add(stringBuilder.ToString());
        for (int i = 0; i < jsonElements?.Length; i++)
        {
            _ = stringBuilder.Clear();
            _ = stringBuilder.Append('"').Append(dateTimeFromSequence).Append('"').Append(',');
            foreach (JsonProperty jsonProperty in jsonElements[i].EnumerateObject())
            {
                if (jsonProperty.Value.ValueKind == JsonValueKind.Object)
                    _ = stringBuilder.Append(',');
                else if (jsonProperty.Value.ValueKind != JsonValueKind.String)
                    _ = stringBuilder.Append(jsonProperty.Value).Append(',');
                else
                    _ = stringBuilder.Append('"').Append(jsonProperty.Value).Append('"').Append(',');
            }
            _ = stringBuilder.Remove(stringBuilder.Length - 1, 1);
            results.Add(stringBuilder.ToString());
        }
        return results.AsReadOnly();
    }

    private static void WriteCommaSeparatedValues(Logistics logistics, Run run)
    {
        List<Row> results = new();
        Row row;
        for (int i = 0; i < run.Sites.Count; i++)
        {
            row = new(run, i);
            results.Add(row);
        }
        string json = JsonSerializer.Serialize(results);
        JsonElement[]? jsonElements = JsonSerializer.Deserialize<JsonElement[]>(json);
        ReadOnlyCollection<string> lines = GetLines(logistics, jsonElements);
        File.WriteAllText($"{logistics.ReportFullPath}.csv", string.Join(Environment.NewLine, lines));
    }

    internal static Run? Get(Logistics logistics, List<FileInfo> fileInfoCollection, Header[] lastHeader)
    {
        Run? result;
        int[] i = new int[] { 0 };
        string text = File.ReadAllText(logistics.ReportFullPath);
        Header? header = Header.Get(lastHeader, text, i);
        if (header is null)
            result = null;
        else
        {
            ReadOnlyCollection<Site> sites = Site.Get(text, i);
            if (sites.Count == 0)
                result = null;
            else
            {
                Body? body = Body.Get(text, i);
                if (body is null)
                    result = null;
                else
                {
                    Footer? footer = Footer.Get(text, i);
                    if (footer is null)
                        result = null;
                    else
                    {
                        result = new(header, sites, body, footer);
                        WriteJson(logistics, fileInfoCollection, result);
                        WriteCommaSeparatedValues(logistics, result);
                    }
                }
            }
        }
        return result;
    }

}

// Bio-Rad QS400MEPI        Recipe: EP_8IN9PT       Thu Apr 30 11:29:10 1970
// operator: J                     batch:     BIORAD#2            
// cassette:                       wafer:     52-589368-4445      
// --------------------------------------------------------------------------------
//    position thickness   position thickness   position thickness
//           1    45.735          2    46.536          3    46.742
//           4    46.015          5    46.648          6    45.366
//           7    46.263          8    46.512          9    46.373
//    wafer mean thickness =   46.2433, std. dev =    0.4564 PASS
// ================================================================================

// Radial variation (computation B) PASS:

//      thickness      -2.7474

[JsonSourceGenerationOptions(WriteIndented = true)]
[JsonSerializable(typeof(Run))]
internal partial class RunSourceGenerationContext : JsonSerializerContext
{
}