using Adaptation.FileHandlers.json.WorkItems;
using Adaptation.Shared;
using Adaptation.Shared.Duplicator;
using Adaptation.Shared.Methods;
using log4net;
using Microsoft.VisualStudio.Services.Common;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.IO;
using System.Linq;
using System.Text.Json;
using System.Text.Json.Serialization;

namespace Adaptation.FileHandlers.Markdown;

public class ProcessData : IProcessData
{

    private readonly List<object> _Details;

    List<object> Shared.Properties.IProcessData.Details => _Details;

    private readonly ILog _Log;

    public ProcessData(IFileRead fileRead, Logistics logistics, string targetFileLocation, string url, ReadOnlyCollection<string> workItemTypes, List<FileInfo> fileInfoCollection)
    {
        if (fileRead.IsEAFHosted)
        { }
        fileInfoCollection.Clear();
        _Details = new List<object>();
        _Log = LogManager.GetLogger(typeof(ProcessData));
        WriteFiles(fileRead, logistics, url, workItemTypes, targetFileLocation, fileInfoCollection);
    }

    string IProcessData.GetCurrentReactor(IFileRead fileRead, Logistics logistics, Dictionary<string, string> reactors) =>
        throw new Exception(string.Concat("See ", nameof(WriteFiles)));

    Tuple<string, Test[], JsonElement[], List<FileInfo>> IProcessData.GetResults(IFileRead fileRead, Logistics logistics, List<FileInfo> fileInfoCollection) =>
        new(logistics.Logistics1[0], Array.Empty<Test>(), Array.Empty<JsonElement>(), fileInfoCollection);

#nullable enable

    internal static List<Description> GetDescriptions(JsonElement[] jsonElements)
    {
        List<Description> results = new();
        Description? description;
        JsonSerializerOptions jsonSerializerOptions = new() { NumberHandling = JsonNumberHandling.AllowReadingFromString | JsonNumberHandling.WriteAsString };
        foreach (JsonElement jsonElement in jsonElements)
        {
            if (jsonElement.ValueKind != JsonValueKind.Object)
                throw new Exception();
            description = JsonSerializer.Deserialize<Description>(jsonElement.ToString(), jsonSerializerOptions);
            if (description is null)
                continue;
            results.Add(description);
        }
        return results;
    }

    private void WriteFiles(IFileRead fileRead, Logistics logistics, string url, ReadOnlyCollection<string> workItemTypes, string destinationDirectory, List<FileInfo> fileInfoCollection)
    {
        if (!Directory.Exists(destinationDirectory))
            _ = Directory.CreateDirectory(destinationDirectory);
        string json = File.ReadAllText(logistics.ReportFullPath);
        // WorkItem[]? workItems = JsonSerializer.Deserialize<WorkItem[]>(json);
        // if (workItems is null)
        //     throw new Exception(nameof(workItems));
        JsonElement[]? jsonElements = JsonSerializer.Deserialize<JsonElement[]>(json);
        if (jsonElements is null)
            throw new Exception(nameof(jsonElements));
        WorkItem? workItem;
        List<WorkItem> workItems = new();
        foreach (JsonElement jsonElement in jsonElements)
        {
            workItem = JsonSerializer.Deserialize<WorkItem>(jsonElement.ToString());
            if (workItem is null)
                continue;
            workItems.Add(workItem);
        }
        List<char> spaces = new();
        List<string> lines = new();
        ReadOnlyCollection<WorkItem> results;
        ReadOnlyDictionary<int, Record> keyValuePairs = GetWorkItems(workItems);
        ReadOnlyCollection<Record> records = new(keyValuePairs.Values.ToArray());
        ReadOnlyCollection<string> bugUserStoryWorkItemTypes = new(new string[] { "Bug", "User Story" });
        ReadOnlyCollection<string> bugUserStoryTaskWorkItemTypes = new(new string[] { "Bug", "User Story", "Task" });
        WriteWithPartentsFile(fileRead, destinationDirectory, fileInfoCollection, records, "with-parents");
        foreach (string workItemType in workItemTypes)
        {
            lines.Clear();
            lines.Add($"# {workItemType}");
            lines.Add(string.Empty);
            AppendLines(url, spaces, lines, records, workItemType);
            results = new(Array.Empty<WorkItem>());
            WriteFiles(fileRead, destinationDirectory, fileInfoCollection, new(lines), results, workItemType);
            _Details.Add(results);
        }
        {
            lines.Clear();
            string workItemType = "Feature";
            lines.Add($"# {nameof(FeatureCheckIterationPath122508)}");
            lines.Add(string.Empty);
            results = FeatureCheckIterationPath122508(url, lines, bugUserStoryTaskWorkItemTypes, records, workItemType);
            WriteFiles(fileRead, destinationDirectory, fileInfoCollection, new(lines), results, "check-122508");
            _Details.Add(results);
        }
        {
            lines.Clear();
            string workItemType = "Feature";
            lines.Add($"# {nameof(FeatureCheckTag122514)}");
            lines.Add(string.Empty);
            results = FeatureCheckTag122514(url, lines, bugUserStoryWorkItemTypes, records, workItemType);
            WriteFiles(fileRead, destinationDirectory, fileInfoCollection, new(lines), results, "check-122514");
            _Details.Add(results);
        }
        {
            lines.Clear();
            string workItemType = "Feature";
            lines.Add($"# {nameof(FeatureCheckPriority126169)}");
            lines.Add(string.Empty);
            results = FeatureCheckPriority126169(url, lines, bugUserStoryWorkItemTypes, records, workItemType);
            WriteFiles(fileRead, destinationDirectory, fileInfoCollection, new(lines), results, "check-126169");
            _Details.Add(results);
        }
        {
            lines.Clear();
            string workItemType = "Feature";
            lines.Add($"# {nameof(FeatureCheckState123066)}");
            lines.Add(string.Empty);
            results = FeatureCheckState123066(url, lines, bugUserStoryTaskWorkItemTypes, records, workItemType);
            WriteFiles(fileRead, destinationDirectory, fileInfoCollection, new(lines), results, "check-123066");
            _Details.Add(results);
        }
        {
            lines.Clear();
            string workItemType = "Feature";
            lines.Add($"# {nameof(FeatureCheckState123067)}");
            lines.Add(string.Empty);
            results = FeatureCheckState123067(url, lines, bugUserStoryTaskWorkItemTypes, records, workItemType);
            WriteFiles(fileRead, destinationDirectory, fileInfoCollection, new(lines), results, "check-123067");
            _Details.Add(results);
        }
        {
            lines.Clear();
            string workItemType = "Feature";
            lines.Add($"# {nameof(FeatureCheckStart122517)}");
            lines.Add(string.Empty);
            results = FeatureCheckStart122517(url, lines, bugUserStoryTaskWorkItemTypes, records, workItemType);
            WriteFiles(fileRead, destinationDirectory, fileInfoCollection, new(lines), results, "check-122517");
            _Details.Add(results);
        }
    }

    private static void WriteFiles(IFileRead fileRead, string destinationDirectory, List<FileInfo> fileInfoCollection, ReadOnlyCollection<string> lines, ReadOnlyCollection<WorkItem> workItems, string fileName)
    {
        string markdown = string.Join(Environment.NewLine, lines);
        string markdownFile = Path.Combine(destinationDirectory, $"{fileName}.md");
        string markdownOld = !File.Exists(markdownFile) ? string.Empty : File.ReadAllText(markdownFile);
        if (markdown != markdownOld)
            File.WriteAllText(markdownFile, markdown);
        if (!fileRead.IsEAFHosted)
            fileInfoCollection.Add(new(markdownFile));
        string html = CommonMark.CommonMarkConverter.Convert(markdown).Replace("<a href", "<a target='_blank' href");
        string htmlFile = Path.Combine(destinationDirectory, $"{fileName}.html");
        string htmlOld = !File.Exists(htmlFile) ? string.Empty : File.ReadAllText(htmlFile);
        if (html != htmlOld)
            File.WriteAllText(htmlFile, html);
        if (!fileRead.IsEAFHosted)
            fileInfoCollection.Add(new(htmlFile));
        string json = JsonSerializer.Serialize(workItems, new JsonSerializerOptions() { WriteIndented = true });
        string jsonFile = Path.Combine(destinationDirectory, $"{fileName}.json");
        string jsonOld = !File.Exists(jsonFile) ? string.Empty : File.ReadAllText(jsonFile);
        if (json != jsonOld)
            File.WriteAllText(jsonFile, json);
        if (!fileRead.IsEAFHosted)
            fileInfoCollection.Add(new(jsonFile));
    }

    private static ReadOnlyDictionary<int, Record> GetWorkItems(IEnumerable<WorkItem> workItems)
    {
        ReadOnlyDictionary<int, Record> results;
        Dictionary<int, WorkItem> keyValuePairs = new();
        foreach (WorkItem workItem in workItems)
            keyValuePairs.Add(workItem.Id, workItem);
        results = GetKeyValuePairs(new(keyValuePairs));
        return results;
    }

    private static void WriteWithPartentsFile(IFileRead fileRead, string destinationDirectory, List<FileInfo> fileInfoCollection, ReadOnlyCollection<Record> records, string fileName)
    {
        Record[] features = (from l in records where l.WorkItem.WorkItemType == "Feature" select l).ToArray();
        string json = JsonSerializer.Serialize(features, new JsonSerializerOptions() { WriteIndented = true });
        string jsonFile = Path.Combine(destinationDirectory, $"{fileName}.json");
        string jsonOld = !File.Exists(jsonFile) ? string.Empty : File.ReadAllText(jsonFile);
        if (json != jsonOld)
            File.WriteAllText(jsonFile, json);
        if (!fileRead.IsEAFHosted)
            fileInfoCollection.Add(new(jsonFile));
    }

    private static void AppendLines(string url, List<char> spaces, List<string> lines, ReadOnlyCollection<Record> records, string workItemType)
    {
        List<string> results = new();
        string? maxIterationPath;
        List<string> distinct = new();
        foreach (Record record in records)
        {
            // if (record.WorkItem.Id != 109724)
            //     continue;
            if (record.WorkItem.WorkItemType != workItemType)
                continue;
            results.Add($"## {record.WorkItem.AssignedTo} - {record.WorkItem.Id} - {record.WorkItem.Title}");
            results.Add(string.Empty);
            results.Add($"- [{record.WorkItem.Id}]({url}{record.WorkItem.Id})");
            if (record.Children.Count == 0)
                results.Add(string.Empty);
            else
            {
                AppendLines(spaces, results, record, condensed: true, sprintOnly: false);
                results.Add(string.Empty);
                distinct.Clear();
                AppendLines(spaces, distinct, record, condensed: false, sprintOnly: true);
                if (distinct.Count > 1)
                {
                    results.Add($"## Distinct Iteration Path(s) - {record.WorkItem.WorkItemType} - {record.WorkItem.AssignedTo} - {record.WorkItem.Id} - {record.WorkItem.Title} - {record.WorkItem.IterationPath}");
                    results.Add(string.Empty);
                    results.Add($"- [{record.WorkItem.Id}]({url}{record.WorkItem.Id})");
                    distinct.Sort();
                    distinct = (from l in distinct select l.Trim()).Distinct().ToList();
                    results.AddRange(distinct);
                    results.Add(string.Empty);
                    maxIterationPath = distinct.Max();
                    if (!string.IsNullOrEmpty(maxIterationPath) && maxIterationPath.Contains("] ") && maxIterationPath.Split(']')[1].Trim() != record.WorkItem.IterationPath)
                    {
                        results.Add($"### Sync to Distinct Max Iteration Path => {maxIterationPath} - {record.WorkItem.Id} - {record.WorkItem.Title}");
                        results.Add(string.Empty);
                    }
                }
                results.Add($"## Extended - {record.WorkItem.Id} - {record.WorkItem.Title}");
                results.Add(string.Empty);
                AppendLines(spaces, results, record, condensed: false, sprintOnly: false);
                results.Add(string.Empty);
            }
            lines.AddRange(results);
            results.Clear();
        }
    }

    private static void AppendLines(List<char> spaces, List<string> lines, Record record, bool condensed, bool sprintOnly)
    {
        string line;
        spaces.Add('\t');
        WorkItem workItem;
        foreach (Record child in record.Children)
        {
            workItem = child.WorkItem;
            line = GetLine(spaces, workItem, child, condensed, sprintOnly).TrimEnd();
            lines.Add(line);
            AppendLines(spaces, lines, child, condensed, sprintOnly);
        }
        spaces.RemoveAt(0);
    }

    private static ReadOnlyDictionary<int, Record> GetKeyValuePairs(ReadOnlyDictionary<int, WorkItem> keyValuePairs)
    {
        Dictionary<int, Record> results = new();
        Record record;
        List<bool> nests = new();
        WorkItem? parentWorkItem;
        ReadOnlyCollection<Record> records;
        foreach (KeyValuePair<int, WorkItem> keyValuePair in keyValuePairs)
        {
            nests.Clear();
            if (keyValuePair.Value.Parent is null)
                parentWorkItem = null;
            else
                _ = keyValuePairs.TryGetValue(keyValuePair.Value.Parent.Value, out parentWorkItem);
            try
            {
                records = GetKeyValuePairs(keyValuePairs, keyValuePair.Value, nests);
                record = new(keyValuePair.Value, parentWorkItem, records);
            }
            catch (Exception)
            {
                record = new(keyValuePair.Value, parentWorkItem, new(Array.Empty<Record>()));
            }
            results.Add(keyValuePair.Key, record);
        }
        return new(results);
    }

    private static string GetLine(List<char> spaces, WorkItem workItem, Record record, bool condensed, bool sprintOnly)
    {
        string result;
        string closed = GetClosed(workItem);
        result = sprintOnly ? $"\t- [ ] {workItem.IterationPath}" :
            condensed ? $"{new string(spaces.Skip(1).ToArray())}- {closed} {record.WorkItem.Id} - {workItem.Title}" :
            $"{new string(spaces.Skip(1).ToArray())}- {closed} {record.WorkItem.Id} - {workItem.Title} ~~~ {workItem.AssignedTo} - {workItem.IterationPath.Replace('\\', '-')} - {workItem.CreatedDate} --- {workItem.ClosedDate}";
        return result;
    }

    private static ReadOnlyCollection<Record> GetKeyValuePairs(ReadOnlyDictionary<int, WorkItem> keyValuePairs, WorkItem workItem, List<bool> nests)
    {
        List<Record> results = new();
        int? childId;
        Record record;
        nests.Add(true);
        WorkItem? childWorkItem;
        WorkItem? parentWorkItem;
        List<WorkItem> collection = new();
        ReadOnlyCollection<Record> records;
        if (workItem.Relations is not null && workItem.Relations.Length > 0)
        {
            collection.Clear();
            foreach (Relation relation in workItem.Relations)
            {
                childId = GetIdFromUrlIfChild(relation);
                if (childId is not null && workItem.Parent is not null && relation?.URL is not null && relation.URL.Contains(workItem.Parent.Value.ToString()))
                    continue;
                if (childId is null || !keyValuePairs.TryGetValue(childId.Value, out childWorkItem))
                    continue;
                collection.Add(childWorkItem);
            }
            collection = (from l in collection orderby l.State != "Closed", l.Id select l).ToList();
            foreach (WorkItem w in collection)
            {
                if (nests.Count > 99)
                    break;
                if (w.Parent is null)
                    parentWorkItem = null;
                else
                    _ = keyValuePairs.TryGetValue(w.Parent.Value, out parentWorkItem);
                records = GetKeyValuePairs(keyValuePairs, w, nests);
                record = new(w, parentWorkItem, records);
                results.Add(record);
            }
        }
        return new(results);
    }

    private static string GetClosed(WorkItem workItem) =>
        workItem.State != "Closed" ? "[ ]" : "[x]";

    private static int? GetIdFromUrlIfChild(Relation relation)
    {
        int? result;
        string[] segments = relation?.Attributes is null || relation.Attributes.Name != "Child" ? Array.Empty<string>() : relation.URL.Split('/');
        if (segments.Length < 2)
            result = null;
        else
        {
            if (!int.TryParse(segments[segments.Length - 1], out int id))
                result = null;
            else
                result = id;
        }
        return result;
    }

    private static ReadOnlyCollection<string> GetChildrenDirectories(ReadOnlyDictionary<int, Record> keyValuePairs, List<bool> nests, string parentDirectory, Record record)
    {
        List<string> results = new();
        nests.Add(true);
        string directory;
        Record? childRecord;
        ReadOnlyCollection<string> childrenDirectories;
        foreach (Record r in record.Children)
        {
            // if (record.WorkItem.Id == 110730)
            //     continue;
            // if (record.WorkItem.Id == 110732)
            //     continue;
            directory = Path.Combine(parentDirectory, $"{r.WorkItem.WorkItemType.Substring(0, 1)}-{r.WorkItem.Id}-{r.WorkItem.Title.Trim().Substring(0, 1)}");
            results.Add(directory);
            if (!keyValuePairs.TryGetValue(r.WorkItem.Id, out childRecord))
                continue;
            if (nests.Count > 99)
                break;
            childrenDirectories = GetChildrenDirectories(keyValuePairs, nests, directory, childRecord);
            results.AddRange(childrenDirectories);
        }
        return new(results);
    }

    private static void FilterChildren(ReadOnlyCollection<string> workItemTypes, Record record, List<WorkItem> results)
    {
        foreach (Record r in record.Children)
        {
            if (!workItemTypes.Contains(r.WorkItem.WorkItemType))
                continue;
            results.Add(r.WorkItem);
            FilterChildren(workItemTypes, r, results);
        }
    }

    private static ReadOnlyCollection<WorkItem> FilterChildren(ReadOnlyCollection<string> workItemTypes, Record record)
    {
        List<WorkItem> results = new();
        FilterChildren(workItemTypes, record, results);
        return new(results);
    }

    private static int GetState(WorkItem workItem) =>
        workItem.State switch
        {
            "New" => 1,
            "Active" => 2,
            "Resolved" => 3,
            "Closed" => 4,
            "Removed" => 5,
            _ => 8
        };

    private static string? GetMaxIterationPath122508(ReadOnlyCollection<WorkItem> workItems)
    {
        string? result;
        List<string> results = new();
        foreach (WorkItem workItem in workItems)
        {
            if (results.Contains(workItem.IterationPath))
                continue;
            results.Add(workItem.IterationPath);
        }
        result = results.Count == 0 ? null : results.Max();
        return result;
    }

    private static ReadOnlyCollection<WorkItem> FeatureCheckIterationPath122508(string url, List<string> lines, ReadOnlyCollection<string> workItemTypes, ReadOnlyCollection<Record> records, string workItemType)
    {
        List<WorkItem> results = new();
        string? maxIterationPath;
        List<string> collection = new();
        ReadOnlyCollection<WorkItem> childrenWorkItems;
        foreach (Record record in records)
        {
            if (record.WorkItem.State is "Removed")
                continue;
            if (record.WorkItem.WorkItemType != workItemType)
                continue;
            collection.Clear();
            if (record.Children.Count == 0)
                continue;
            childrenWorkItems = FilterChildren(workItemTypes, record);
            maxIterationPath = GetMaxIterationPath122508(childrenWorkItems);
            if (string.IsNullOrEmpty(maxIterationPath) || record.WorkItem.IterationPath == maxIterationPath)
                continue;
            collection.Add($"## {record.WorkItem.AssignedTo} - {record.WorkItem.Id} - {record.WorkItem.Title}");
            collection.Add(string.Empty);
            collection.Add($"- [ ] [{record.WorkItem.Id}]({url}{record.WorkItem.Id}) => {record.WorkItem.IterationPath} != {maxIterationPath}");
            collection.Add(string.Empty);
            lines.AddRange(collection);
            results.Add(WorkItem.Get(record.WorkItem, $"IterationPath:<a target='_blank' href='{url}{record.WorkItem.Id}'>{record.WorkItem.Id}</a>;{record.WorkItem.IterationPath} != {maxIterationPath}"));
        }
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> GetWorkItemsNotMatching122514(Record record, ReadOnlyCollection<WorkItem> workItems)
    {
        List<WorkItem> results = new();
        string[] segments;
        string[] parentTags = record.WorkItem.Tags.Split(';').Select(l => l.Trim()).ToArray();
        foreach (WorkItem workItem in workItems)
        {
            segments = string.IsNullOrEmpty(workItem.Tags) ? Array.Empty<string>() : workItem.Tags.Split(';').Select(l => l.Trim()).ToArray();
            if (segments.Length > 0 && parentTags.Any(l => segments.Contains(l)))
                continue;
            results.Add(workItem);
        }
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> FeatureCheckTag122514(string url, List<string> lines, ReadOnlyCollection<string> workItemTypes, ReadOnlyCollection<Record> records, string workItemType)
    {
        List<WorkItem> results = new();
        List<string> collection = new();
        List<string> violations = new();
        ReadOnlyCollection<WorkItem> childrenWorkItems;
        ReadOnlyCollection<WorkItem> workItemsNotMatching;
        foreach (Record record in records)
        {
            if (record.WorkItem.State is "Removed")
                continue;
            if (record.WorkItem.WorkItemType != workItemType)
                continue;
            collection.Clear();
            violations.Clear();
            if (record.Children.Count == 0)
                continue;
            if (string.IsNullOrEmpty(record.WorkItem.Tags))
                workItemsNotMatching = new(new WorkItem[] { record.WorkItem });
            else
            {
                childrenWorkItems = FilterChildren(workItemTypes, record);
                workItemsNotMatching = GetWorkItemsNotMatching122514(record, childrenWorkItems);
                if (!string.IsNullOrEmpty(record.WorkItem.Tags) && workItemsNotMatching.Count == 0)
                    continue;
            }
            collection.Add($"## {record.WorkItem.AssignedTo} - {record.WorkItem.Id} - {record.WorkItem.Title}");
            collection.Add(string.Empty);
            foreach (WorkItem workItem in workItemsNotMatching)
                collection.Add($"- [ ] [{workItem}]({url}{workItem}) {nameof(record.WorkItem.Tags)} != {record.WorkItem.Tags}");
            collection.Add(string.Empty);
            lines.AddRange(collection);
            violations.Add($"Tag:{record.WorkItem.Tags};");
            foreach (WorkItem workItem in workItemsNotMatching)
                violations.Add($"<a target='_blank' href='{url}{workItem.Id}'>{workItem.Id}</a>:{workItem.Tags};");
            results.Add(WorkItem.Get(record.WorkItem, string.Join(" ", violations)));
        }
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> GetWorkItemsNotMatching126169(Record record, ReadOnlyCollection<WorkItem> workItems)
    {
        List<WorkItem> results = new();
        foreach (WorkItem workItem in workItems)
        {
            if (record.WorkItem.Priority is null)
            {
                results.Add(record.WorkItem);
                break;
            }
            if (workItem.Priority == record.WorkItem.Priority.Value)
                continue;
            results.Add(workItem);
        }
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> FeatureCheckPriority126169(string url, List<string> lines, ReadOnlyCollection<string> workItemTypes, ReadOnlyCollection<Record> records, string workItemType)
    {
        List<WorkItem> results = new();
        List<string> collection = new();
        List<string> violations = new();
        ReadOnlyCollection<WorkItem> childrenWorkItems;
        ReadOnlyCollection<WorkItem> workItemsNotMatching;
        foreach (Record record in records)
        {
            if (record.WorkItem.State is "Removed")
                continue;
            if (record.WorkItem.WorkItemType != workItemType)
                continue;
            collection.Clear();
            violations.Clear();
            if (record.Children.Count == 0)
                continue;
            childrenWorkItems = FilterChildren(workItemTypes, record);
            workItemsNotMatching = GetWorkItemsNotMatching126169(record, childrenWorkItems);
            if (workItemsNotMatching.Count == 0)
                continue;
            collection.Add($"## {record.WorkItem.AssignedTo} - {record.WorkItem.Id} - {record.WorkItem.Title}");
            collection.Add(string.Empty);
            collection.Add($"- [{record.WorkItem.Id}]({url}{record.WorkItem.Id})");
            foreach (WorkItem workItem in workItemsNotMatching)
                collection.Add($"- [ ] [{workItem.Id}]({url}{workItem.Id}) {nameof(record.WorkItem.Priority)} != {record.WorkItem.Priority}");
            collection.Add(string.Empty);
            lines.AddRange(collection);
            violations.Add($"Priority:{record.WorkItem.Priority};");
            foreach (WorkItem workItem in workItemsNotMatching)
                violations.Add($"<a target='_blank' href='{url}{workItem.Id}'>{workItem.Id}</a>:{workItem.Priority};");
            results.Add(WorkItem.Get(record.WorkItem, string.Join(" ", violations)));
        }
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> GetWorkItemsNotMatching123066(Record record, ReadOnlyCollection<WorkItem> workItems)
    {
        List<WorkItem> results = new();
        int check;
        int state = GetState(record.WorkItem);
        List<KeyValuePair<int, WorkItem>> collection = new();
        foreach (WorkItem workItem in workItems)
        {
            if (workItem.State is "Removed")
                continue;
            check = GetState(workItem);
            if (check == state)
                continue;
            collection.Add(new(check, workItem));
        }
        if (collection.Count > 0)
        {
            KeyValuePair<int, WorkItem>[] notNewState = (from l in collection where l.Value.State != "New" select l).ToArray();
            if (notNewState.Length == 0 && record.WorkItem.State is "New" or "Active")
                collection.Clear();
            else if (notNewState.Length > 0)
            {
                int minimum = notNewState.Min(l => l.Key);
                if (minimum == state)
                    collection.Clear();
                else if (minimum == 1 && record.WorkItem.State == "New")
                    collection.Clear();
                else if (notNewState.Length > 0 && record.WorkItem.State == "Active")
                    collection.Clear();
            }
        }
        foreach (KeyValuePair<int, WorkItem> keyValuePair in collection.OrderByDescending(l => l.Key))
            results.Add(keyValuePair.Value);
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> GetWorkItemsNotMatching123067(Record record, ReadOnlyCollection<WorkItem> workItems)
    {
        List<WorkItem> results = new();
        int check;
        int state = GetState(record.WorkItem);
        List<KeyValuePair<int, WorkItem>> collection = new();
        foreach (WorkItem workItem in workItems)
        {
            if (workItem.State is "Removed")
                continue;
            check = GetState(workItem);
            if (check == state)
                continue;
            collection.Add(new(check, workItem));
        }
        if (collection.Count > 0)
        {
            KeyValuePair<int, WorkItem>[] notNewState = (from l in collection where l.Value.State != "New" select l).ToArray();
            if (notNewState.Length == 0 && record.WorkItem.State is "New" or "Active")
                collection.Clear();
            else if (notNewState.Length > 0)
            {
                int minimum = notNewState.Min(l => l.Key);
                if (minimum == state)
                    collection.Clear();
                else if (minimum == 1 && record.WorkItem.State == "New")
                    collection.Clear();
                else if (notNewState.Length > 0 && record.WorkItem.State == "Active")
                    collection.Clear();
            }
        }
        foreach (KeyValuePair<int, WorkItem> keyValuePair in collection.OrderByDescending(l => l.Key))
            results.Add(keyValuePair.Value);
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> GetWorkItemsNotMatching122517(Record record, ReadOnlyCollection<WorkItem> workItems)
    {
        List<WorkItem> results = new();
        if (record.WorkItem.StartDate is null)
            throw new Exception();
        DateTime dateTime = record.WorkItem.StartDate.Value;
        List<KeyValuePair<long, WorkItem>> collection = new();
        foreach (WorkItem workItem in workItems)
        {
            if (workItem.State is "Removed")
                continue;
            if (workItem.ActivatedDate is null)
                continue;
            if (dateTime >= workItem.ActivatedDate.Value)
                continue;
            collection.Add(new(workItem.ActivatedDate.Value.Ticks, workItem));
        }
        foreach (KeyValuePair<long, WorkItem> keyValuePair in collection.OrderByDescending(l => l.Key))
            results.Add(keyValuePair.Value);
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> FeatureCheckState123066(string url, List<string> lines, ReadOnlyCollection<string> workItemTypes, ReadOnlyCollection<Record> records, string workItemType)
    {
        List<WorkItem> results = new();
        List<string> collection = new();
        List<string> violations = new();
        ReadOnlyCollection<WorkItem> childrenWorkItems;
        ReadOnlyCollection<WorkItem> workItemsNotMatching;
        foreach (Record record in records)
        {
            if (record.WorkItem.State is "Removed")
                continue;
            if (record.WorkItem.WorkItemType != workItemType)
                continue;
            collection.Clear();
            violations.Clear();
            if (record.Children.Count == 0)
                continue;
            childrenWorkItems = FilterChildren(workItemTypes, record);
            workItemsNotMatching = GetWorkItemsNotMatching123066(record, childrenWorkItems);
            if (workItemsNotMatching.Count == 0)
                continue;
            collection.Add($"## {record.WorkItem.AssignedTo} - {record.WorkItem.Id} - {record.WorkItem.Title}");
            collection.Add(string.Empty);
            collection.Add($"- [{record.WorkItem.Id}]({url}{record.WorkItem.Id})");
            foreach (WorkItem workItem in workItemsNotMatching)
                collection.Add($"- [ ] [{workItem.Id}]({url}{workItem.Id}) {nameof(record.WorkItem.State)} != {record.WorkItem.State}");
            collection.Add(string.Empty);
            lines.AddRange(collection);
            violations.Add($"State:{record.WorkItem.State};");
            foreach (WorkItem workItem in workItemsNotMatching)
                violations.Add($"<a target='_blank' href='{url}{workItem.Id}'>{workItem.Id}</a>:{workItem.State};");
            results.Add(WorkItem.Get(record.WorkItem, string.Join(" ", violations)));
        }
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> FeatureCheckState123067(string url, List<string> lines, ReadOnlyCollection<string> workItemTypes, ReadOnlyCollection<Record> records, string workItemType)
    {
        List<WorkItem> results = new();
        List<string> collection = new();
        List<string> violations = new();
        ReadOnlyCollection<WorkItem> childrenWorkItems;
        ReadOnlyCollection<WorkItem> workItemsNotMatching;
        foreach (Record record in records)
        {
            if (record.WorkItem.State is "Removed")
                continue;
            if (record.WorkItem.WorkItemType != workItemType)
                continue;
            collection.Clear();
            violations.Clear();
            if (record.Children.Count == 0)
                continue;
            childrenWorkItems = FilterChildren(workItemTypes, record);
            workItemsNotMatching = GetWorkItemsNotMatching123067(record, childrenWorkItems);
            if (workItemsNotMatching.Count == 0)
                continue;
            collection.Add($"## {record.WorkItem.AssignedTo} - {record.WorkItem.Id} - {record.WorkItem.Title}");
            collection.Add(string.Empty);
            collection.Add($"- [{record.WorkItem.Id}]({url}{record.WorkItem.Id})");
            foreach (WorkItem workItem in workItemsNotMatching)
                collection.Add($"- [ ] [{workItem.Id}]({url}{workItem.Id}) {nameof(record.WorkItem.State)} != {record.WorkItem.State}");
            collection.Add(string.Empty);
            lines.AddRange(collection);
            violations.Add($"State:{record.WorkItem.State};");
            foreach (WorkItem workItem in workItemsNotMatching)
                violations.Add($"<a target='_blank' href='{url}{workItem.Id}'>{workItem.Id}</a>:{workItem.State};");
            results.Add(WorkItem.Get(record.WorkItem, string.Join(" ", violations)));
        }
        return new(results);
    }

    private static ReadOnlyCollection<WorkItem> FeatureCheckStart122517(string url, List<string> lines, ReadOnlyCollection<string> workItemTypes, ReadOnlyCollection<Record> records, string workItemType)
    {
        List<WorkItem> results = new();
        List<string> collection = new();
        List<string> violations = new();
        ReadOnlyCollection<WorkItem> childrenWorkItems;
        ReadOnlyCollection<WorkItem> workItemsNotMatching;
        foreach (Record record in records)
        {
            if (record.WorkItem.State is "Removed")
                continue;
            if (record.WorkItem.WorkItemType != workItemType)
                continue;
            collection.Clear();
            violations.Clear();
            if (record.Children.Count == 0)
                continue;
            if (record.WorkItem.StartDate is null)
                continue;
            childrenWorkItems = FilterChildren(workItemTypes, record);
            workItemsNotMatching = GetWorkItemsNotMatching122517(record, childrenWorkItems);
            if (workItemsNotMatching.Count == 0)
                continue;
            collection.Add($"## {record.WorkItem.AssignedTo} - {record.WorkItem.Id} - {record.WorkItem.Title}");
            collection.Add(string.Empty);
            collection.Add($"- [{record.WorkItem.Id}]({url}{record.WorkItem.Id})");
            foreach (WorkItem workItem in workItemsNotMatching)
                collection.Add($"- [ ] [{workItem.Id}]({url}{workItem.Id}) {nameof(record.WorkItem.ActivatedDate)} != {record.WorkItem.ActivatedDate}");
            collection.Add(string.Empty);
            lines.AddRange(collection);
            violations.Add($"StartDate:{record.WorkItem.StartDate};");
            foreach (WorkItem workItem in workItemsNotMatching)
                violations.Add($"<a target='_blank' href='{url}{workItem.Id}'>{workItem.Id}</a>:{workItem.ActivatedDate};");
            results.Add(WorkItem.Get(record.WorkItem, string.Join(" ", violations)));
        }
        return new(results);
    }

}