namespace TeamCity.MSBuild.Logger
{
    using System;
    using JetBrains.Annotations;
    using Microsoft.Build.Framework;

    // ReSharper disable once ClassNeverInstantiated.Global
    internal class DeferredMessageWriter: IDeferredMessageWriter
    {
        [NotNull] private readonly IStringService _stringService;
        [NotNull] private readonly IPathService _pathService;
        [NotNull] private readonly IHierarchicalMessageWriter _hierarchicalMessageWriter;
        [NotNull] private readonly IBuildEventManager _buildEventManager;
        [NotNull] private readonly ILoggerContext _context;
        [NotNull] private readonly ILogWriter _logWriter;
        [NotNull] private readonly IMessageWriter _messageWriter;

        public DeferredMessageWriter(
            [NotNull] ILoggerContext context,
            [NotNull] ILogWriter logWriter,
            [NotNull] IMessageWriter messageWriter,
            [NotNull] IHierarchicalMessageWriter hierarchicalMessageWriter,
            [NotNull] IBuildEventManager buildEventManager,
            [NotNull] IPathService pathService,
            [NotNull] IStringService stringService)
        {
            _stringService = stringService ?? throw new ArgumentNullException(nameof(stringService));
            _pathService = pathService ?? throw new ArgumentNullException(nameof(pathService));
            _hierarchicalMessageWriter = hierarchicalMessageWriter ?? throw new ArgumentNullException(nameof(hierarchicalMessageWriter));
            _buildEventManager = buildEventManager ?? throw new ArgumentNullException(nameof(buildEventManager));
            _context = context ?? throw new ArgumentNullException(nameof(context));
            _logWriter = logWriter ?? throw new ArgumentNullException(nameof(logWriter));
            _messageWriter = messageWriter ?? throw new ArgumentNullException(nameof(messageWriter));
        }

        public void ShownBuildEventContext(BuildEventContext e)
        {
            _context.LastDisplayedBuildEventContext = e;
        }

        public void DisplayDeferredProjectStartedEvent(BuildEventContext e)
        {
            if (_context.Parameters.ShowOnlyErrors || _context.Parameters.ShowOnlyWarnings || _context.SkipProjectStartedText)
            {
                return;
            }

            var projectStartedEvent = _buildEventManager.GetProjectStartedEvent(e);
            if (projectStartedEvent == null || projectStartedEvent.ShowProjectFinishedEvent)
            {
                return;
            }

            projectStartedEvent.ShowProjectFinishedEvent = true;
            var parentProjectStartedEvent = projectStartedEvent.ParentProjectStartedEvent;
            if (parentProjectStartedEvent != null)
            {
                DisplayDeferredStartedEvents(parentProjectStartedEvent.ProjectBuildEventContext);
            }

            var projectFile = projectStartedEvent.ProjectFile ?? string.Empty;
            var parentProjectFile = parentProjectStartedEvent?.ProjectFile;
            var targetNames = projectStartedEvent.TargetNames;
            var nodeId = projectStartedEvent.ProjectBuildEventContext.NodeId;
            var shortProjectFile = _pathService.GetFileName(projectFile);
            if (parentProjectFile == null)
            {
                string message;
                string shortName;
                if (string.IsNullOrEmpty(targetNames))
                {
                    message = _stringService.FormatResourceString("ProjectStartedTopLevelProjectWithDefaultTargets", projectFile, nodeId);
                    shortName = $"Project \"{shortProjectFile}\"";
                }
                else
                {
                    message = _stringService.FormatResourceString("ProjectStartedTopLevelProjectWithTargetNames", projectFile, nodeId, targetNames);
                    shortName = $"Project \"{shortProjectFile}\": {targetNames}";
                }

                _hierarchicalMessageWriter.StartBlock(shortName);

                _messageWriter.WriteLinePrefix(projectStartedEvent.FullProjectKey, projectStartedEvent.TimeStamp, false);
                _logWriter.SetColor(Color.BuildStage);
                _messageWriter.WriteMessageAligned(message, true);
                _logWriter.ResetColor();
            }
            else
            {
                if (string.IsNullOrEmpty(targetNames))
                {
                    var shortName = $"Project \"{shortProjectFile}\"";
                    _hierarchicalMessageWriter.StartBlock(shortName);

                    _messageWriter.WriteLinePrefix(parentProjectStartedEvent.FullProjectKey, parentProjectStartedEvent.TimeStamp, false);
                    _logWriter.SetColor(Color.BuildStage);
                    _messageWriter.WriteMessageAligned(_stringService.FormatResourceString("ProjectStartedWithDefaultTargetsMultiProc", parentProjectFile, parentProjectStartedEvent.FullProjectKey, projectFile, projectStartedEvent.FullProjectKey, nodeId), true);
                }
                else
                {
                    var shortName = $"Project \"{shortProjectFile}\": {targetNames}";
                    _hierarchicalMessageWriter.StartBlock(shortName);

                    _messageWriter.WriteLinePrefix(parentProjectStartedEvent.FullProjectKey, parentProjectStartedEvent.TimeStamp, false);
                    _logWriter.SetColor(Color.BuildStage);
                    _messageWriter.WriteMessageAligned(_stringService.FormatResourceString("ProjectStartedWithTargetsMultiProc", parentProjectFile, parentProjectStartedEvent.FullProjectKey, projectFile, projectStartedEvent.FullProjectKey, nodeId, targetNames), true);
                }

                _logWriter.ResetColor();
            }

            ShownBuildEventContext(null);
        }

        public void DisplayDeferredTargetStartedEvent(BuildEventContext e)
        {
            if (_context.Parameters.ShowOnlyErrors || _context.Parameters.ShowOnlyWarnings)
            {
                return;
            }

            var targetStartedEvent = _buildEventManager.GetTargetStartedEvent(e);
            if (targetStartedEvent == null || targetStartedEvent.ShowTargetFinishedEvent)
            {
                return;
            }

            targetStartedEvent.ShowTargetFinishedEvent = true;
            DisplayDeferredStartedEvents(targetStartedEvent.TargetBuildEventContext);
            var projectStartedEvent = _buildEventManager.GetProjectStartedEvent(e);
            if (projectStartedEvent == null)
            {
                throw new InvalidOperationException("Project Started should not be null in deferred target started");
            }

            var projectFile = projectStartedEvent.ProjectFile ?? string.Empty;
            string targetName;
            var shortTargetName = $"Target \"{targetStartedEvent.TargetName}\"";
            if (_context.IsVerbosityAtLeast(LoggerVerbosity.Diagnostic) || (_context.Parameters.ShowEventId ?? false))
            {
                targetName = _stringService.FormatResourceString("TargetMessageWithId", targetStartedEvent.TargetName, targetStartedEvent.TargetBuildEventContext.TargetId);
            }
            else
            {
                targetName = targetStartedEvent.TargetName;
            }

            if (_context.IsVerbosityAtLeast(LoggerVerbosity.Detailed))
            {
                if (string.Equals(projectFile, targetStartedEvent.TargetFile, StringComparison.OrdinalIgnoreCase))
                {
                    if (!string.IsNullOrEmpty(targetStartedEvent.ParentTarget))
                    {
                        _hierarchicalMessageWriter.StartBlock(shortTargetName);

                        _messageWriter.WriteLinePrefix(targetStartedEvent.TargetBuildEventContext, targetStartedEvent.TimeStamp, false);
                        _logWriter.SetColor(Color.BuildStage);
                        _messageWriter.WriteMessageAligned(_stringService.FormatResourceString("TargetStartedProjectDepends", targetName, projectFile, targetStartedEvent.ParentTarget), true);
                    }
                    else
                    {
                        _hierarchicalMessageWriter.StartBlock(shortTargetName);

                        _messageWriter.WriteLinePrefix(targetStartedEvent.TargetBuildEventContext, targetStartedEvent.TimeStamp, false);
                        _logWriter.SetColor(Color.BuildStage);
                        _messageWriter.WriteMessageAligned(_stringService.FormatResourceString("TargetStartedProjectEntry", targetName, projectFile), true);
                    }
                }
                else 
                    if (!string.IsNullOrEmpty(targetStartedEvent.ParentTarget))
                    {
                        _hierarchicalMessageWriter.StartBlock(shortTargetName);

                        _messageWriter.WriteLinePrefix(targetStartedEvent.TargetBuildEventContext, targetStartedEvent.TimeStamp, false);
                        _logWriter.SetColor(Color.BuildStage);
                        _messageWriter.WriteMessageAligned(_stringService.FormatResourceString("TargetStartedFileProjectDepends", targetName, targetStartedEvent.TargetFile, projectFile, targetStartedEvent.ParentTarget), true);
                    }
                    else
                    {
                        _hierarchicalMessageWriter.StartBlock(shortTargetName);

                        _messageWriter.WriteLinePrefix(targetStartedEvent.TargetBuildEventContext, targetStartedEvent.TimeStamp, false);
                        _logWriter.SetColor(Color.BuildStage);
                        _messageWriter.WriteMessageAligned(_stringService.FormatResourceString("TargetStartedFileProjectEntry", targetName, targetStartedEvent.TargetFile, projectFile), true);
                    }
            }
            else
            {
                _hierarchicalMessageWriter.StartBlock(shortTargetName);

                _messageWriter.WriteLinePrefix(targetStartedEvent.TargetBuildEventContext, targetStartedEvent.TimeStamp, false);
                _logWriter.SetColor(Color.BuildStage);
                _messageWriter.WriteMessageAligned(_stringService.FormatResourceString("TargetStartedFileProjectEntry", targetName, targetStartedEvent.TargetFile, projectFile), true);
            }

            _logWriter.ResetColor();
            ShownBuildEventContext(e);
        }

        public void DisplayDeferredStartedEvents(BuildEventContext e)
        {
            if (_context.Parameters.ShowOnlyErrors || _context.Parameters.ShowOnlyWarnings)
            {
                return;
            }

            if (_context.IsVerbosityAtLeast(LoggerVerbosity.Normal))
            {
                DisplayDeferredProjectStartedEvent(e);
            }

            if (!_context.IsVerbosityAtLeast(LoggerVerbosity.Detailed))
            {
                return;
            }

            DisplayDeferredTargetStartedEvent(e);
        }
    }
}