using System.Linq;
using System.Numerics;
using Content.Shared.Atmos;
using Content.Shared.Damage.Components;
using Content.Shared.Damage.Prototypes;
using Content.Shared.Damage.Systems;
using Content.Shared.FixedPoint;
using Content.Shared.Humanoid;
using Content.Shared.Humanoid.Prototypes;
using Content.Shared.IdentityManagement;
using Content.Shared.MedicalScanner;
using Content.Shared.Mobs;
using Content.Shared.Mobs.Components;
using Robust.Client.AutoGenerated;
using Robust.Client.GameObjects;
using Robust.Client.Graphics;
using Robust.Client.ResourceManagement;
using Robust.Client.UserInterface.Controls;
using Robust.Client.UserInterface.XAML;
using Robust.Shared.Prototypes;
using Robust.Shared.Utility;

// BEGIN DeltaV
using Content.Client._DV.Traits.Assorted;
using Content.Shared._DV.Traits.Assorted;
using Content.Shared._DV.Medical; // Uncloneable
using Content.Shared._DV.MedicalRecords; // Medical Records

// Health Analyzer Plus
using Content.Shared.Chemistry.Components;
using Content.Shared.Chemistry.Reagent;
using Content.Shared.Body.Systems;
using Content.Client.Body.Systems;
using Content.Shared.Chemistry.EntitySystems;
using Content.Client.Chemistry.Containers.EntitySystems;
using Content.Shared.Body.Components;
// END DeltaV
namespace Content.Client.HealthAnalyzer.UI;



// Health analyzer UI is split from its window because it's used by both the
// health analyzer item and the cryo pod UI.

[GenerateTypedNameReferences]
public sealed partial class HealthAnalyzerControl : BoxContainer
{
    private const string REAGENT_GROUP_MEDICINE = "Medicine"; // DeltaV - Health Analyzer

    private readonly IEntityManager _entityManager;
    private readonly SpriteSystem _spriteSystem;
    private readonly IPrototypeManager _prototypes;
    private readonly IResourceCache _cache;
    private readonly DamageableSystem _damageable;

    private readonly UnborgableSystem _unborgable; // DeltaV
    private readonly RedshirtSystem _redshirt; // DeltaV
    private readonly UncloneableSystem _uncloneable; // DeltaV
    private readonly SharedBloodstreamSystem _bloodstream; // DeltaV
    private readonly SharedSolutionContainerSystem _solutionContainer; // DeltaV

    // Begin DeltaV - Medical Records
    private readonly ButtonGroup _triageStatusGroup = new();
    private readonly Dictionary<TriageStatus, Button> _triageControls = new();

    public event Action<TriageStatus>? OnTriageStatusChanged;
    public event Action? OnClaimPatient;
    // End DeltaV - Medical Records
    public Action? OnPrintMedTekRecord; // DeltaV - MedTek Reports


    public HealthAnalyzerControl()
    {
        RobustXamlLoader.Load(this);

        var dependencies = IoCManager.Instance!;
        _entityManager = dependencies.Resolve<IEntityManager>();
        _spriteSystem = _entityManager.System<SpriteSystem>();
        _prototypes = dependencies.Resolve<IPrototypeManager>();
        _cache = dependencies.Resolve<IResourceCache>();
        _damageable = _entityManager.System<DamageableSystem>();

        _unborgable = _entityManager.System<UnborgableSystem>(); // DeltaV
        _redshirt = _entityManager.System<RedshirtSystem>(); // DeltaV
        _uncloneable = _entityManager.System<UncloneableSystem>(); // DeltaV
        _bloodstream = _entityManager.System<BloodstreamSystem>(); // DeltaV
        _solutionContainer = _entityManager.System<SolutionContainerSystem>(); // DeltaV

        // Begin DeltaV - Medical Records
        foreach (var item in Enum.GetValues<TriageStatus>())
        {
            var btn = new Button();
            var ftlKey = item.ToString();
            btn.Group = _triageStatusGroup;
            btn.Text = Loc.GetString($"health-analyzer-window-triage-status-{ftlKey}");
            btn.ToolTip = Loc.GetString($"health-analyzer-window-triage-status-{ftlKey}.ToolTip");
            btn.OnPressed += _ => OnTriageStatusChanged?.Invoke(item);
            btn.AddStyleClass("ButtonSquare");
            StatusBox.AddChild(btn);
            _triageControls[item] = btn;
        }
        StatusBox.Children.First().AddStyleClass("OpenRight");
        StatusBox.Children.First().RemoveStyleClass("ButtonSquare");
        StatusBox.Children.Last().AddStyleClass("OpenLeft");
        StatusBox.Children.Last().RemoveStyleClass("ButtonSquare");
        ClaimButton.OnPressed += _ => OnClaimPatient?.Invoke();
        // End DeltaV - Medical Records
        PrintReportButton.OnPressed += (_) => OnPrintMedTekRecord?.Invoke(); // DeltaV - MedTek Reports
    }

    public void Populate(HealthAnalyzerUiState state)
    {
        var target = _entityManager.GetEntity(state.TargetEntity);

        if (target == null
            || !_entityManager.TryGetComponent<DamageableComponent>(target, out var damageable))
        {
            NoPatientDataText.Visible = true;
            return;
        }

        NoPatientDataText.Visible = false;

        // Scan Mode

        ScanModeLabel.Text = state.ScanMode.HasValue
            ? state.ScanMode.Value
                ? Loc.GetString("health-analyzer-window-scan-mode-active")
                : Loc.GetString("health-analyzer-window-scan-mode-inactive")
            : Loc.GetString("health-analyzer-window-entity-unknown-text");

        ScanModeLabel.FontColorOverride = state.ScanMode.HasValue && state.ScanMode.Value ? Color.Green : Color.Red;

        PrintReportButton.Disabled = state is { ScanMode: false }; // DeltaV

        // Patient Information
        SpriteView.SetEntity(target.Value);
        SpriteView.Visible = state.ScanMode.HasValue && state.ScanMode.Value;
        NoDataTex.Visible = !SpriteView.Visible;

        var name = new FormattedMessage();
        name.PushColor(Color.White);
        name.AddText(_entityManager.HasComponent<MetaDataComponent>(target.Value)
            ? Identity.Name(target.Value, _entityManager)
            : Loc.GetString("health-analyzer-window-entity-unknown-text"));
        NameLabel.SetMessage(name);

        SpeciesLabel.Text =
            _entityManager.TryGetComponent<HumanoidProfileComponent>(target.Value,
                out var humanoidComponent)
                ? Loc.GetString(_prototypes.Index(humanoidComponent.Species).Name)
                : Loc.GetString("health-analyzer-window-entity-unknown-species-text");

        // Basic Diagnostic

        TemperatureLabel.Text = !float.IsNaN(state.Temperature)
            ? $"{state.Temperature - Atmospherics.T0C:F1} °C ({state.Temperature:F1} K)"
            : Loc.GetString("health-analyzer-window-entity-unknown-value-text");

        // Begin DeltaV - Health Analyzer Plus
        /*
        BloodLabel.Text = !float.IsNaN(state.BloodLevel)
            ? $"{state.BloodLevel * 100:F1} %"
            : Loc.GetString("health-analyzer-window-entity-unknown-value-text");
        */
        // End DeltaV - Health Analyzer Plus

        StatusLabel.Text =
            _entityManager.TryGetComponent<MobStateComponent>(target.Value, out var mobStateComponent)
                ? GetStatus(mobStateComponent.CurrentState)
                : Loc.GetString("health-analyzer-window-entity-unknown-text");

        // Total Damage

        // DamageLabel.Text = _damageable.GetTotalDamage(target.Value).ToString(); // DeltaV - Health Analyzer Plus

        // Alerts
        // DeltaV traits - This is going to be horrid if we just keep adding things like this.
        var unborgable = _unborgable.IsUnborgable(target.Value);
        var redshirt = _redshirt.IsRedshirt(target.Value) && mobStateComponent?.CurrentState == MobState.Dead; // DeltaV - Redshirt
        var uncloneable = _uncloneable.IsUncloneable(target.Value) && mobStateComponent?.CurrentState == MobState.Dead; // DeltaV - Unclonable

        // I'm just going to lump them all into 'extraTraitAlerts' to group our modifications as a single bool in the next check
        var extraTraitAlerts = unborgable || redshirt || uncloneable;
        // END DeltaV

        var showAlerts = state.Unrevivable == true || state.Bleeding == true || extraTraitAlerts; // DeltaV - extra alerts

        AlertsDivider.Visible = showAlerts;
        AlertsContainer.Visible = showAlerts;

        if (showAlerts)
            AlertsContainer.RemoveAllChildren();

        if (state.Unrevivable == true)
            AlertsContainer.AddChild(new RichTextLabel
            {
                Text = Loc.GetString("health-analyzer-window-entity-unrevivable-text"),
                Margin = new Thickness(0, 4),
                MaxWidth = 300
            });

        if (state.Bleeding == true)
            AlertsContainer.AddChild(new RichTextLabel
            {
                Text = Loc.GetString("health-analyzer-window-entity-bleeding-text"),
                Margin = new Thickness(0, 4),
                MaxWidth = 300
            });

        if (unborgable) // DeltaV
            AlertsContainer.AddChild(new RichTextLabel
            {
                Text = Loc.GetString("health-analyzer-window-entity-unborgable-text"),
                Margin = new Thickness(0, 4),
                MaxWidth = 300
            });

        if (redshirt) // DeltaV
            AlertsContainer.AddChild(new RichTextLabel
            {
                Text = Loc.GetString("health-analyzer-window-entity-redshirt-text"),
                Margin = new Thickness(0, 4),
                MaxWidth = 300
            });

        if (uncloneable) // DeltaV - Uncloneable
            AlertsContainer.AddChild(new RichTextLabel
            {
                Text = Loc.GetString("health-analyzer-window-entity-uncloneable-text"),
                Margin = new Thickness(0, 4),
                MaxWidth = 300
            });

        // Damage Groups

        var damageSortedGroups =
            _damageable.GetDamagePerGroup(target.Value)
                .OrderByDescending(damage => damage.Value)
                .ToDictionary(x => x.Key, x => x.Value);

        var damagePerType = _damageable.GetAllDamage(target.Value).DamageDict;

        DrawDiagnosticGroups(damageSortedGroups, damagePerType);
        DrawBloodstreamInfo(target.Value, state.BloodSolution, state.BloodLevel); // End DeltaV - Health Analyzer Plus

        // Begin DeltaV - Medical Records
        if (state.MedicalRecord is not { } records)
        {
            TriageControls.Visible = false;
            return;
        }

        TriageControls.Visible = true;
        _triageControls[records.Status].Pressed = true;

        // Update claim button based on claimed status
        if (records.ClaimedName != null)
        {
            ClaimButton.Text = Loc.GetString("health-analyzer-window-triage-unclaim", ("claimedBy", records.ClaimedName));
        }
        else
        {
            ClaimButton.Text = Loc.GetString("health-analyzer-window-triage-claim");
        }
        // End DeltaV - Medical Records
    }

    private static string GetStatus(MobState mobState)
    {
        return mobState switch
        {
            MobState.Alive => Loc.GetString("health-analyzer-window-entity-alive-text"),
            MobState.Critical => Loc.GetString("health-analyzer-window-entity-critical-text"),
            MobState.Dead => Loc.GetString("health-analyzer-window-entity-dead-text"),
            _ => Loc.GetString("health-analyzer-window-entity-unknown-text"),
        };
    }

    private void DrawDiagnosticGroups(
        Dictionary<ProtoId<DamageGroupPrototype>, FixedPoint2> groups,
        IReadOnlyDictionary<ProtoId<DamageTypePrototype>, FixedPoint2> damageDict)
    {
        // Begin DeltaV - Health Analyzer Plus
        // GroupsContainer.RemoveAllChildren();
        DamageGroupsContainer.RemoveAllChildren();

        // Begin DeltaV - Health Analyzer Plus
        var totalDamage = damageDict.Sum(x => x.Value.Double());
        TotalDamageLabel.Text = Loc.GetString("health-analyzer-plus-window-entity-total-damage-text", ("amount", Math.Round(totalDamage, 2)));
        NoDamageLabel.Visible = totalDamage == 0;
        // End DeltaV - Health Analyzer Plus

        foreach (var (damageGroupId, damageAmount) in groups)
        {
            if (damageAmount == 0)
                continue;

            var groupTitleText = $"{Loc.GetString(
                "health-analyzer-window-damage-group-text",
                ("damageGroup", _prototypes.Index(damageGroupId).LocalizedName),
                ("amount", damageAmount)
            )}";

            var groupContainer = new BoxContainer
            {
                Align = AlignMode.Begin,
                Orientation = LayoutOrientation.Vertical,
            };

            groupContainer.AddChild(CreateDiagnosticGroupTitle(groupTitleText, damageGroupId));

            // GroupsContainer.AddChild(groupContainer); // DeltaV - Health Analyzer Plus
            DamageGroupsContainer.AddChild(groupContainer); // DeltaV - Health Analyzer Plus

            // Show the damage for each type in that group.
            var group = _prototypes.Index(damageGroupId);

            foreach (var type in group.DamageTypes)
            {
                if (!damageDict.TryGetValue(type, out var typeAmount) || typeAmount <= 0)
                    continue;

                var damageString = Loc.GetString(
                    "health-analyzer-window-damage-type-text",
                    ("damageType", _prototypes.Index<DamageTypePrototype>(type).LocalizedName),
                    ("amount", typeAmount)
                );

                groupContainer.AddChild(CreateDiagnosticItemLabel(damageString.Insert(0, " · ")));
            }
        }
    }

    // Begin DeltaV - Health Analyzer Plus
    private void DrawBloodstreamInfo(EntityUid target, Solution? bloodSolution, float bloodlevel)
    {
        BloodstreamReagentListContainer.RemoveAllChildren();

        List<ReagentQuantity> bloodstream = new();
        double totalReagentQuantity = 0;
        double unknownReagents = 0;
        // Make sure we can access the bloodtype and reagents before trying to use them
        if (bloodSolution is not null)
        {
            if (!_entityManager.TryGetComponent<BloodstreamComponent>(target, out var bloodstreamComp) ||
                !_solutionContainer.ResolveSolution(target, bloodstreamComp.BloodSolutionName, ref bloodstreamComp.BloodSolution, out var bloodReagentSolution))
                return;

            // Get the blood reagent IDs to ignore in the scan
            var bloodReagentIds = bloodstreamComp.BloodReferenceSolution.Select(b => b.Reagent);

            // Get all of the medicines in the bloodstream
            foreach (var reagent in bloodSolution!.Contents)
            {
                if (bloodReagentIds.Contains(reagent.Reagent))
                    continue;

                if (_prototypes.Index<ReagentPrototype>(reagent.Reagent.Prototype).Group == REAGENT_GROUP_MEDICINE)
                {
                    bloodstream.Add(reagent);
                    totalReagentQuantity += reagent.Quantity.Double();
                }
                else
                {
                    unknownReagents += reagent.Quantity.Double();
                }
            }
        }

        var bloodQuantityPercent = !float.IsNaN(bloodlevel)
            ? $"{bloodlevel * 100:F1} %"
            : Loc.GetString("health-analyzer-window-entity-unknown-value-text");

        // Display the percent and amount of blood in the system
        // Normal health scanner is percent only, this one adds the actual units too
        BloodLevelLabel.Text = Loc.GetString(
            "health-analyzer-plus-window-entity-blood-level-quantity-text",
            ("percent", bloodQuantityPercent)
       );

        // Display the total amount of reagents in the bloodstream, 0 is valid
        TotalReagentQuantityLabel.Text = Loc.GetString(
            "health-analyzer-plus-window-entity-total-reagents-text",
            ("amount", Math.Round(totalReagentQuantity, 1).ToString("0.0"))
       );

        // If the bloodstream was empty, display a message instead to fill the space with something
        NoReagentsLabel.Visible = bloodstream.Count == 0 && unknownReagents == 0;

        // For each of the reagents in the bloodstream, add them to the list of reagents
        // If there are none, this loop will simply do nothing
        foreach (var (reagentID, reagentQuantity) in bloodstream)
        {
            var reagentPrototype = _prototypes.Index<ReagentPrototype>(reagentID.Prototype);

            // Make a new container for each reagent we add to the list
            var reagentContainer = new BoxContainer
            {
                Align = AlignMode.Begin,
                Orientation = LayoutOrientation.Vertical
            };

            // Add the string "[] <reagent_name>: <reagent_amount>u" for the current reagent
            // The [] is a unicode block character, and is colored with the reagent color
            // to make it easier to identify
            reagentContainer.AddChild(
                new RichTextLabel
                {
                    Text = Loc.GetString("health-analyzer-plus-window-reagent-text",
                        ("reagentColor", reagentPrototype.SubstanceColor),
                        ("reagentName", reagentPrototype.LocalizedName),
                        ("amount", Math.Round(reagentQuantity.Double(), 1).ToString("0.0"))
                    )
                }
            );

            BloodstreamReagentListContainer.AddChild(reagentContainer);
        }

        // Add unknown reagents (if any)
        if (unknownReagents > 0)
        {
            var unknownReagentContainer = new BoxContainer
            {
                Align = AlignMode.Begin,
                Orientation = LayoutOrientation.Vertical
            };

            unknownReagentContainer.AddChild(
                    new RichTextLabel
                    {
                        Text = Loc.GetString("health-analyzer-plus-window-unknown-reagents-text",
                            ("amount", Math.Round(unknownReagents, 1).ToString("0.0"))
                        )
                    }
                );
            BloodstreamReagentListContainer.AddChild(unknownReagentContainer);
        }

        return;
    }
    // End DeltaV - Health Analyzer Plus

    private Texture GetTexture(string texture)
    {
        var rsiPath = new ResPath("/Textures/Objects/Devices/health_analyzer.rsi");
        var rsiSprite = new SpriteSpecifier.Rsi(rsiPath, texture);

        var rsi = _cache.GetResource<RSIResource>(rsiSprite.RsiPath).RSI;
        if (!rsi.TryGetState(rsiSprite.RsiState, out var state))
        {
            rsiSprite = new SpriteSpecifier.Rsi(rsiPath, "unknown");
        }

        return _spriteSystem.Frame0(rsiSprite);
    }

    private static Label CreateDiagnosticItemLabel(string text)
    {
        return new Label
        {
            Text = text,
        };
    }

    private BoxContainer CreateDiagnosticGroupTitle(string text, string id)
    {
        var rootContainer = new BoxContainer
        {
            Margin = new Thickness(0, 6, 0, 0),
            VerticalAlignment = VAlignment.Bottom,
            Orientation = LayoutOrientation.Horizontal,
        };

        rootContainer.AddChild(new TextureRect
        {
            SetSize = new Vector2(30, 30),
            Texture = GetTexture(id.ToLower())
        });

        rootContainer.AddChild(CreateDiagnosticItemLabel(text));

        return rootContainer;
    }
}