Rework the ChemMaster's output handling (#11207)

* Fix doc comment on FitsInDispenserComponent

It's clearly intended to be a doc comment, but wasn't.

* Allow the ChemMaster to accept canisters and bottles

* Give the ChemMaster an output container slot

* Tweak ChemMaster UI layout

* Make more ChemMaster UI tweaks

* Update ChemMaster SpinBox max handling

* Rework the ChemMaster

* Apply suggestions from code review

Co-authored-by: Flipp Syder <76629141+vulppine@users.noreply.github.com>

* Implement PR feedback

* Switch ChemMaster to a tabbed UI layout

* Rename Amount to Dosage for clarity

* Replace Amount with Dosage in messages

* Clarify dose in UI

Co-authored-by: Flipp Syder <76629141+vulppine@users.noreply.github.com>

Content.Client/Chemistry/UI/ChemMasterBoundUserInterface.cs

@@ -37,11 +37,19 @@ namespace Content.Client.Chemistry.UI
             _window.OnClose += Close;
 
             // Setup static button actions.
-            _window.EjectButton.OnPressed += _ => SendMessage(new ItemSlotButtonPressedEvent(SharedChemMaster.ContainerSlotName));
-            _window.BufferTransferButton.OnPressed += _ => SendMessage(new ChemMasterSetModeMessage(ChemMasterMode.Transfer));
-            _window.BufferDiscardButton.OnPressed += _ => SendMessage(new ChemMasterSetModeMessage(ChemMasterMode.Discard));
-            _window.CreatePillButton.OnPressed += _ => SendMessage(new ChemMasterCreatePillsMessage(((uint)_window.PillAmount.Value), _window.LabelLine));
-            _window.CreateBottleButton.OnPressed += _ => SendMessage(new ChemMasterCreateBottlesMessage(((uint)_window.BottleAmount.Value), _window.LabelLine));
+            _window.InputEjectButton.OnPressed += _ => SendMessage(
+                new ItemSlotButtonPressedEvent(SharedChemMaster.InputSlotName));
+            _window.OutputEjectButton.OnPressed += _ => SendMessage(
+                new ItemSlotButtonPressedEvent(SharedChemMaster.OutputSlotName));
+            _window.BufferTransferButton.OnPressed += _ => SendMessage(
+                new ChemMasterSetModeMessage(ChemMasterMode.Transfer));
+            _window.BufferDiscardButton.OnPressed += _ => SendMessage(
+                new ChemMasterSetModeMessage(ChemMasterMode.Discard));
+            _window.CreatePillButton.OnPressed += _ => SendMessage(
+                new ChemMasterCreatePillsMessage(
+                    (uint)_window.PillDosage.Value, (uint)_window.PillNumber.Value, _window.LabelLine));
+            _window.CreateBottleButton.OnPressed += _ => SendMessage(
+                new ChemMasterOutputToBottleMessage((uint)_window.BottleDosage.Value, _window.LabelLine));
 
             for (uint i = 0; i < _window.PillTypeButtons.Length; i++)
             {

Content.Client/Chemistry/UI/ChemMasterWindow.xaml

@@ -1,76 +1,106 @@
 <DefaultWindow xmlns="https://spacestation14.io"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:gfx="clr-namespace:Robust.Client.Graphics;assembly=Robust.Client"
-            MinSize="400 525"
+            MinSize="620 670"
             Title="{Loc 'chem-master-bound-user-interface-title'}">
-    <BoxContainer Orientation="Vertical"
-                  Margin="5 5 5 5"
-                  SeparationOverride="10">
-        <BoxContainer Orientation="Horizontal">
-            <Label Text="{Loc 'chem-master-window-container-label'}" />
-            <Control HorizontalExpand="True" />
-            <Button Name="EjectButton"
-                    Access="Public"
-                    Text="{Loc 'chem-master-window-eject-button'}" />
-        </BoxContainer>
-        <PanelContainer VerticalExpand="True"
-                        SizeFlagsStretchRatio="6"
-                        MinSize="0 200">
-            <PanelContainer.PanelOverride>
-                <gfx:StyleBoxFlat BackgroundColor="#1B1B1E" />
-            </PanelContainer.PanelOverride>
-            <!-- Initially empty, when server sends state data this will have container contents and fill volume.-->
-            <BoxContainer Name="ContainerInfo"
-                          Orientation="Vertical"
-                          HorizontalExpand="True">
-                <Label Text="{Loc 'chem-master-window-no-container-loaded-text'}" />
+    <TabContainer Name="Tabs" Margin="0 0 2 0">
+        <BoxContainer Orientation="Vertical"
+                      HorizontalExpand="True"
+                      Margin="5 5 5 5"
+                      SeparationOverride="10">
+            <!-- Input container info -->
+            <BoxContainer Orientation="Horizontal">
+                <Label Text="{Loc 'chem-master-window-container-label'}" />
+                <Control HorizontalExpand="True" />
+                <Button Name="InputEjectButton"
+                        Access="Public"
+                        Text="{Loc 'chem-master-window-eject-button'}" />
             </BoxContainer>
-        </PanelContainer>
-        <Control MinSize="0 10" />
-        <!-- Buffer -->
-        <BoxContainer Orientation="Horizontal">
-            <Label Text="{Loc 'chem-master-window-buffer-text'}" />
-            <Control HorizontalExpand="True" />
-            <Button Name="BufferTransferButton"
-                    Access="Public"
-                    Text="{Loc 'chem-master-window-transfer-button'}" ToggleMode="True"
-                    StyleClasses="OpenRight" />
-            <Button Name="BufferDiscardButton"
-                    Access="Public"
-                    Text="{Loc 'chem-master-window-discard-button'}" ToggleMode="True"
-                    StyleClasses="OpenLeft" />
-        </BoxContainer>
-        <!-- Buffer info -->
-        <PanelContainer VerticalExpand="True" SizeFlagsStretchRatio="1" MinSize="0 150">
-            <PanelContainer.PanelOverride>
-                <gfx:StyleBoxFlat BackgroundColor="#1B1B1E" />
-            </PanelContainer.PanelOverride>
-            <!-- Buffer reagent list -->
-            <BoxContainer Name="BufferInfo"
-                          Orientation="Vertical"
-                          HorizontalExpand="True">
-                <Label Text="{Loc 'chem-master-window-buffer-empty-text'}" />
+            <PanelContainer VerticalExpand="True" MinSize="0 200">
+                <PanelContainer.PanelOverride>
+                    <gfx:StyleBoxFlat BackgroundColor="#1B1B1E" />
+                </PanelContainer.PanelOverride>
+                <!-- Initially empty, when server sends state data this will have container contents and fill volume.-->
+                <BoxContainer Name="InputContainerInfo"
+                              Orientation="Vertical"
+                              Margin="4 4 4 4"
+                              HorizontalExpand="True">
+                    <Label Text="{Loc 'chem-master-window-no-container-loaded-text'}" />
+                </BoxContainer>
+            </PanelContainer>
+            <!-- Padding -->
+            <Control MinSize="0 10" />
+            <!-- Buffer -->
+            <BoxContainer Orientation="Horizontal">
+                <Label Text="{Loc 'chem-master-window-buffer-text'}" />
+                <Control HorizontalExpand="True" />
+                <Button Name="BufferTransferButton"
+                        Access="Public"
+                        Text="{Loc 'chem-master-window-transfer-button'}" ToggleMode="True"
+                        StyleClasses="OpenRight" />
+                <Button Name="BufferDiscardButton"
+                        Access="Public"
+                        Text="{Loc 'chem-master-window-discard-button'}" ToggleMode="True"
+                        StyleClasses="OpenLeft" />
             </BoxContainer>
-        </PanelContainer>
-        <!-- Padding -->
-        <Control MinSize="0 10" />
-        <PanelContainer VerticalExpand="True" MinSize="100 100">
+            <!-- Buffer info -->
+            <PanelContainer VerticalExpand="True" MinSize="0 200">
+                <PanelContainer.PanelOverride>
+                    <gfx:StyleBoxFlat BackgroundColor="#1B1B1E" />
+                </PanelContainer.PanelOverride>
+                <!-- Buffer reagent list -->
+                <BoxContainer Name="BufferInfo"
+                              Orientation="Vertical"
+                              Margin="4 4 4 4"
+                              HorizontalExpand="True">
+                    <Label Text="{Loc 'chem-master-window-buffer-empty-text'}" />
+                </BoxContainer>
+            </PanelContainer>
+        </BoxContainer>
+        <BoxContainer Orientation="Vertical"
+                      HorizontalExpand="True"
+                      Margin="5 5 5 5"
+                      SeparationOverride="10">
+            <!-- Output container info -->
+            <BoxContainer Orientation="Horizontal">
+                <Label Text="{Loc 'chem-master-window-container-label'}" />
+                <Control HorizontalExpand="True" />
+                <Button Name="OutputEjectButton"
+                        Access="Public"
+                        Text="{Loc 'chem-master-window-eject-button'}" />
+            </BoxContainer>
+            <PanelContainer VerticalExpand="True" MinSize="0 200">
+                <PanelContainer.PanelOverride>
+                    <gfx:StyleBoxFlat BackgroundColor="#1B1B1E" />
+                </PanelContainer.PanelOverride>
+                <!-- Initially empty, when server sends state data this will have container contents and fill volume.-->
+                <BoxContainer Name="OutputContainerInfo"
+                              Orientation="Vertical"
+                              Margin="4 4 4 4"
+                              HorizontalExpand="True">
+                    <Label Text="{Loc 'chem-master-window-no-container-loaded-text'}" />
+                </BoxContainer>
+            </PanelContainer>
+            <!-- Padding -->
+            <Control MinSize="0 10" />
             <!-- Packaging -->
             <BoxContainer Orientation="Horizontal">
                 <Label Text="{Loc 'chem-master-window-packaging-text'}" />
+                <Control HorizontalExpand="True"/>
+                <Label Text="{Loc 'chem-master-window-buffer-label'}" />
+                <Label Name="BufferCurrentVolume" StyleClasses="LabelSecondaryColor" />
             </BoxContainer>
             <!-- Wrap the packaging info-->
-            <PanelContainer VerticalExpand="True"
-                            SizeFlagsStretchRatio="6"
-                            MinSize="0 100">
+            <PanelContainer>
                 <PanelContainer.PanelOverride>
                     <gfx:StyleBoxFlat BackgroundColor="#1B1B1E" />
                 </PanelContainer.PanelOverride>
                 <!-- Packaging Info -->
                 <BoxContainer Orientation="Vertical"
-                                HorizontalExpand="True"
-                                VerticalExpand="True"
-                                SeparationOverride="5">
+                              Margin="4 4 4 4"
+                              HorizontalExpand="True"
+                              VerticalExpand="True"
+                              SeparationOverride="5">
                     <!-- Label for output -->
                     <BoxContainer Orientation="Horizontal">
                         <Label Text="{Loc 'chem-master-current-text-label'}" />
@@ -89,30 +119,38 @@
                         <Label Text="{Loc 'chem-master-window-pills-label'}" />
                         <Control HorizontalExpand="True"
                                     MinSize="50 0" />
-                        <SpinBox Name="PillAmount"
-                                    Access="Public"
-                                    Value="1" />
+                        <Label Text="{Loc 'chem-master-window-pills-number-label'}"
+                               Margin="5 0 0 0"
+                               StyleClasses="LabelSecondaryColor" />
+                        <SpinBox Name="PillNumber"
+                                 Access="Public"
+                                 Value="0" />
+                        <Label Text="{Loc 'chem-master-window-dose-label'}"
+                               Margin="5 0 0 0"
+                               StyleClasses="LabelSecondaryColor" />
+                        <SpinBox Name="PillDosage"
+                                 Access="Public"
+                                 Value="1" />
                         <Button Name="CreatePillButton"
                                 Access="Public"
-                                Text="{Loc 'chem-master-window-create-pill-button'}" />
-                        <Label Text="{Loc 'chem-master-window-max-pills-volume-text'}"
-                                StyleClasses="LabelSecondaryColor" />
+                                Text="{Loc 'chem-master-window-create-button'}" />
                     </BoxContainer>
                     <BoxContainer Orientation="Horizontal">
                         <Label Text="{Loc 'chem-master-window-bottles-label'}" />
                         <Control HorizontalExpand="True"
                                     MinSize="50 0" />
-                        <SpinBox Name="BottleAmount"
+                        <Label Text="{Loc 'chem-master-window-dose-label'}"
+                               Margin="5 0 0 0"
+                               StyleClasses="LabelSecondaryColor" />
+                        <SpinBox Name="BottleDosage"
                                     Access="Public"
-                                    Value="1" />
+                                    Value="0" />
                         <Button Name="CreateBottleButton"
                                 Access="Public"
-                                Text="{Loc 'chem-master-window-create-bottle-button'}" />
-                        <Label Text="{Loc 'chem-master-window-max-bottles-volume-text'}"
-                                StyleClasses="LabelSecondaryColor" />
+                                Text="{Loc 'chem-master-window-create-button'}" />
                     </BoxContainer>
                 </BoxContainer>
             </PanelContainer>
-        </PanelContainer>
-    </BoxContainer>
+        </BoxContainer>
+    </TabContainer>
 </DefaultWindow>

Content.Client/Chemistry/UI/ChemMasterWindow.xaml.cs

@@ -75,8 +75,12 @@ namespace Content.Client.Chemistry.UI
                 Grid.AddChild(PillTypeButtons[i]);
             }
 
-            PillAmount.InitDefaultButtons();
-            BottleAmount.InitDefaultButtons();
+            PillDosage.InitDefaultButtons();
+            PillNumber.InitDefaultButtons();
+            BottleDosage.InitDefaultButtons();
+
+            Tabs.SetTabTitle(0, Loc.GetString("chem-master-window-input-tab"));
+            Tabs.SetTabTitle(1, Loc.GetString("chem-master-window-output-tab"));
         }
 
         private ReagentButton MakeReagentButton(string text, ChemMasterReagentAmount amount, string id, bool isBuffer, string styleClass)
@@ -98,14 +102,30 @@ namespace Content.Client.Chemistry.UI
             if (castState.UpdateLabel)
                 LabelLine = GenerateLabel(castState);
             UpdatePanelInfo(castState);
-            if (Contents.Children != null)
-            {
-                EjectButton.Disabled = !castState.HasContainer();
-            }
+
+            var output = castState.OutputContainerInfo;
+
+            BufferCurrentVolume.Text = $" {castState.BufferCurrentVolume?.Int() ?? 0}u";
+
+            InputEjectButton.Disabled = castState.InputContainerInfo is null;
+            OutputEjectButton.Disabled = output is null;
+            CreateBottleButton.Disabled = output is null || !output.HoldsReagents;
+            CreatePillButton.Disabled = output is null || output.HoldsReagents;
+
+            var remainingCapacity = output is null ? 0 : (output.MaxVolume - output.CurrentVolume).Int();
+            var holdsReagents = output?.HoldsReagents ?? false;
+            var pillNumberMax = holdsReagents ? 0 : remainingCapacity;
+            var bottleAmountMax = holdsReagents ? remainingCapacity : 0;
 
             PillTypeButtons[castState.SelectedPillType].Pressed = true;
-            PillAmount.IsValid = x => x > 0 && x <= castState.PillProductionLimit;
-            BottleAmount.IsValid = x => x > 0 && x <= castState.BottleProductionLimit;
+            PillNumber.IsValid = x => x >= 0 && x <= pillNumberMax;
+            PillDosage.IsValid = x => x > 0 && x <= castState.PillDosageLimit;
+            BottleDosage.IsValid = x => x >= 0 && x <= bottleAmountMax;
+
+            if (PillNumber.Value > pillNumberMax)
+                PillNumber.Value = pillNumberMax;
+            if (BottleDosage.Value > bottleAmountMax)
+                BottleDosage.Value = bottleAmountMax;
         }
 
         /// <summary>
@@ -134,64 +154,8 @@ namespace Content.Client.Chemistry.UI
             BufferTransferButton.Pressed = state.Mode == Shared.Chemistry.ChemMasterMode.Transfer;
             BufferDiscardButton.Pressed = state.Mode == Shared.Chemistry.ChemMasterMode.Discard;
 
-            ContainerInfo.Children.Clear();
-
-            if (!state.HasContainer())
-            {
-                ContainerInfo.Children.Add(new Label {Text = Loc.GetString("chem-master-window-no-container-loaded-text") });
-            }
-            else
-            {
-                ContainerInfo.Children.Add(new BoxContainer // Name of the container and its fill status (Ex: 44/100u)
-                {
-                    Orientation = LayoutOrientation.Horizontal,
-                    Children =
-                    {
-                        new Label {Text = $"{state.ContainerName}: "},
-                        new Label
-                        {
-                            Text = $"{state.ContainerCurrentVolume}/{state.ContainerMaxVolume}",
-                            StyleClasses = {StyleNano.StyleClassLabelSecondaryColor}
-                        }
-                    }
-                });
-
-                foreach (var reagent in state.ContainerReagents!.OrderBy(
-                    r => {_prototypeManager.TryIndex(r.ReagentId, out ReagentPrototype? p); return p?.LocalizedName;}))
-                {
-                    // Try to get the prototype for the given reagent. This gives us its name.
-                    _prototypeManager.TryIndex(reagent.ReagentId, out ReagentPrototype? proto);
-                    var name = proto?.LocalizedName ?? Loc.GetString("chem-master-window-unknown-reagent-text");
-
-                    if (proto != null)
-                    {
-                        ContainerInfo.Children.Add(new BoxContainer
-                        {
-                            Orientation = LayoutOrientation.Horizontal,
-                            Children =
-                            {
-                                new Label {Text = $"{name}: "},
-                                new Label
-                                {
-                                    Text = $"{reagent.Quantity}u",
-                                    StyleClasses = {StyleNano.StyleClassLabelSecondaryColor}
-                                },
-
-                                // Padding
-                                new Control {HorizontalExpand = true},
-
-                                MakeReagentButton("1", ChemMasterReagentAmount.U1, reagent.ReagentId, false, StyleBase.ButtonOpenRight),
-                                MakeReagentButton("5", ChemMasterReagentAmount.U5, reagent.ReagentId, false, StyleBase.ButtonOpenBoth),
-                                MakeReagentButton("10", ChemMasterReagentAmount.U10, reagent.ReagentId, false, StyleBase.ButtonOpenBoth),
-                                MakeReagentButton("25", ChemMasterReagentAmount.U25, reagent.ReagentId, false, StyleBase.ButtonOpenBoth),
-                                MakeReagentButton(Loc.GetString("chem-master-window-buffer-all-amount"), ChemMasterReagentAmount.All, reagent.ReagentId, false, StyleBase.ButtonOpenLeft),
-                            }
-                        });
-                    }
-                }
-            }
-
-
+            BuildContainerUI(InputContainerInfo, state.InputContainerInfo, true);
+            BuildContainerUI(OutputContainerInfo, state.OutputContainerInfo, false);
 
             BufferInfo.Children.Clear();
 
@@ -212,7 +176,7 @@ namespace Content.Client.Chemistry.UI
             bufferHBox.AddChild(bufferLabel);
             var bufferVol = new Label
             {
-                Text = $"{state.BufferCurrentVolume}",
+                Text = $"{state.BufferCurrentVolume}u",
                 StyleClasses = {StyleNano.StyleClassLabelSecondaryColor}
             };
             bufferHBox.AddChild(bufferVol);
@@ -251,6 +215,92 @@ namespace Content.Client.Chemistry.UI
             }
         }
 
+        private void BuildContainerUI(Control control, ContainerInfo? info, bool addReagentButtons)
+        {
+            control.Children.Clear();
+
+            if (info is null)
+            {
+                control.Children.Add(new Label
+                {
+                    Text = Loc.GetString("chem-master-window-no-container-loaded-text")
+                });
+            }
+            else
+            {
+                // Name of the container and its fill status (Ex: 44/100u)
+                control.Children.Add(new BoxContainer
+                {
+                    Orientation = LayoutOrientation.Horizontal,
+                    Children =
+                    {
+                        new Label {Text = $"{info.DisplayName}: "},
+                        new Label
+                        {
+                            Text = $"{info.CurrentVolume}/{info.MaxVolume}",
+                            StyleClasses = {StyleNano.StyleClassLabelSecondaryColor}
+                        }
+                    }
+                });
+
+                var contents = info.Contents
+                    .Select(lineItem =>
+                    {
+                        if (!info.HoldsReagents)
+                            return (lineItem.Id, lineItem.Id, lineItem.Quantity);
+
+                        // Try to get the prototype for the given reagent. This gives us its name.
+                        _prototypeManager.TryIndex(lineItem.Id, out ReagentPrototype? proto);
+                        var name = proto?.LocalizedName
+                                   ?? Loc.GetString("chem-master-window-unknown-reagent-text");
+
+                        return (name, lineItem.Id, lineItem.Quantity);
+
+                    })
+                    .OrderBy(r => r.Item1);
+
+                foreach (var (name, id, quantity) in contents)
+                {
+                    var inner = new BoxContainer
+                    {
+                        Orientation = LayoutOrientation.Horizontal,
+                        Children =
+                        {
+                            new Label { Text = $"{name}: " },
+                            new Label
+                            {
+                                Text = $"{quantity}u",
+                                StyleClasses = { StyleNano.StyleClassLabelSecondaryColor },
+                            }
+                        }
+                    };
+
+                    if (addReagentButtons)
+                    {
+                        var cs = inner.Children;
+
+                        // Padding
+                        cs.Add(new Control { HorizontalExpand = true });
+
+                        cs.Add(MakeReagentButton(
+                            "1", ChemMasterReagentAmount.U1, id, false, StyleBase.ButtonOpenRight));
+                        cs.Add(MakeReagentButton(
+                            "5", ChemMasterReagentAmount.U5, id, false, StyleBase.ButtonOpenBoth));
+                        cs.Add(MakeReagentButton(
+                            "10", ChemMasterReagentAmount.U10, id, false, StyleBase.ButtonOpenBoth));
+                        cs.Add(MakeReagentButton(
+                            "25", ChemMasterReagentAmount.U25, id, false, StyleBase.ButtonOpenBoth));
+                        cs.Add(MakeReagentButton(
+                            Loc.GetString("chem-master-window-buffer-all-amount"),
+                            ChemMasterReagentAmount.All, id, false, StyleBase.ButtonOpenLeft));
+                    }
+
+                    control.Children.Add(inner);
+                }
+
+            }
+        }
+
         public String LabelLine
         {
             get

Content.Server/Chemistry/Components/ChemMasterComponent.cs

@@ -18,11 +18,8 @@ namespace Content.Server.Chemistry.Components
         [DataField("mode"), ViewVariables(VVAccess.ReadWrite)]
         public ChemMasterMode Mode = ChemMasterMode.Transfer;
 
-        [DataField("pillProductionLimit", required: true), ViewVariables(VVAccess.ReadWrite)]
-        public uint PillProductionLimit;
-
-        [DataField("bottleProductionLimit", required: true), ViewVariables(VVAccess.ReadWrite)]
-        public uint BottleProductionLimit;
+        [DataField("pillDosageLimit", required: true), ViewVariables(VVAccess.ReadWrite)]
+        public uint PillDosageLimit;
 
         [DataField("clickSound"), ViewVariables(VVAccess.ReadWrite)]
         public SoundSpecifier ClickSound = new SoundPathSpecifier("/Audio/Machines/machine_switch.ogg");

Content.Server/Chemistry/EntitySystems/ChemMasterSystem.cs

@@ -1,16 +1,20 @@
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
 using Content.Server.Chemistry.Components;
 using Content.Server.Labels.Components;
 using Content.Server.Popups;
+using Content.Server.Storage.Components;
+using Content.Server.Storage.EntitySystems;
 using Content.Shared.Chemistry;
 using Content.Shared.Chemistry.Components;
 using Content.Shared.Containers.ItemSlots;
 using Content.Shared.FixedPoint;
-using Content.Shared.Hands.EntitySystems;
 using JetBrains.Annotations;
 using Robust.Server.GameObjects;
 using Robust.Shared.Audio;
 using Robust.Shared.Containers;
 using Robust.Shared.Player;
+using Robust.Shared.Utility;
 
 
 namespace Content.Server.Chemistry.EntitySystems
@@ -28,7 +32,9 @@ namespace Content.Server.Chemistry.EntitySystems
         [Dependency] private readonly SolutionContainerSystem _solutionContainerSystem = default!;
         [Dependency] private readonly ItemSlotsSystem _itemSlotsSystem = default!;
         [Dependency] private readonly UserInterfaceSystem _userInterfaceSystem = default!;
-        [Dependency] private readonly SharedHandsSystem _handsSystem = default!;
+        [Dependency] private readonly StorageSystem _storageSystem = default!;
+        
+        private const string PillPrototypeId = "Pill";
 
         public override void Initialize()
         {
@@ -44,33 +50,26 @@ namespace Content.Server.Chemistry.EntitySystems
             SubscribeLocalEvent<ChemMasterComponent, ChemMasterSetPillTypeMessage>(OnSetPillTypeMessage);
             SubscribeLocalEvent<ChemMasterComponent, ChemMasterReagentAmountButtonMessage>(OnReagentButtonMessage);
             SubscribeLocalEvent<ChemMasterComponent, ChemMasterCreatePillsMessage>(OnCreatePillsMessage);
-            SubscribeLocalEvent<ChemMasterComponent, ChemMasterCreateBottlesMessage>(OnCreateBottlesMessage);
+            SubscribeLocalEvent<ChemMasterComponent, ChemMasterOutputToBottleMessage>(OnOutputToBottleMessage);
         }
 
         private void UpdateUiState(ChemMasterComponent chemMaster, bool updateLabel = false)
         {
             if (!_solutionContainerSystem.TryGetSolution(chemMaster.Owner, SharedChemMaster.BufferSolutionName, out var bufferSolution))
                 return;
-            var container = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.ContainerSlotName);
+            var inputContainer = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.InputSlotName);
+            var outputContainer = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.OutputSlotName);
 
-            Solution? containerSolution = null;
-
-            if (container.HasValue && container.Value.Valid)
-            {
-                TryComp(container, out FitsInDispenserComponent? fits);
-                _solutionContainerSystem.TryGetSolution(container.Value, fits!.Solution, out containerSolution);
-            }
-
-            var containerName = container is null ? null : Name(container.Value);
             var dispenserName = Name(chemMaster.Owner);
             var bufferReagents = bufferSolution.Contents;
             var bufferCurrentVolume = bufferSolution.CurrentVolume;
 
             var state = new ChemMasterBoundUserInterfaceState(
-                containerSolution?.CurrentVolume, containerSolution?.MaxVolume, containerName, dispenserName,
-                containerSolution?.Contents, bufferReagents, chemMaster.Mode, bufferCurrentVolume, chemMaster.PillType,
-                chemMaster.PillProductionLimit, chemMaster.BottleProductionLimit, updateLabel
-            );
+                chemMaster.Mode, dispenserName, 
+                BuildInputContainerInfo(inputContainer), BuildOutputContainerInfo(outputContainer),
+                bufferReagents, bufferCurrentVolume,
+                chemMaster.PillType, chemMaster.PillDosageLimit, updateLabel);
+
             _userInterfaceSystem.TrySetUiState(chemMaster.Owner, ChemMasterUiKey.Key, state);
         }
 
@@ -120,7 +119,7 @@ namespace Content.Server.Chemistry.EntitySystems
 
         private void TransferReagents(ChemMasterComponent chemMaster, string reagentId, FixedPoint2 amount, bool fromBuffer)
         {
-            var container = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.ContainerSlotName);
+            var container = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.InputSlotName);
             if (container is null ||
                 !_solutionContainerSystem.TryGetFitsInDispenser(container.Value, out var containerSolution) ||
                 !_solutionContainerSystem.TryGetSolution(chemMaster.Owner, SharedChemMaster.BufferSolutionName, out var bufferSolution))
@@ -156,7 +155,7 @@ namespace Content.Server.Chemistry.EntitySystems
             }
             else
             {
-                var container = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.ContainerSlotName);
+                var container = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.InputSlotName);
                 if (container is not null &&
                     _solutionContainerSystem.TryGetFitsInDispenser(container.Value, out var containerSolution))
                 {
@@ -171,79 +170,172 @@ namespace Content.Server.Chemistry.EntitySystems
 
         private void OnCreatePillsMessage(EntityUid uid, ChemMasterComponent chemMaster, ChemMasterCreatePillsMessage message)
         {
-            // Ensure the amount is valid.
-            if (message.Amount == 0 || message.Amount > chemMaster.PillProductionLimit)
+            var user = message.Session.AttachedEntity;
+            var maybeContainer = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.OutputSlotName);
+            if (maybeContainer is not { Valid: true } container
+                || !TryComp(container, out ServerStorageComponent? storage)
+                || storage.Storage is null)
+            {
+                return; // output can't fit pills
+            }
+            
+            // Ensure the number is valid.
+            if (message.Number == 0 || message.Number > storage.StorageCapacityMax - storage.StorageUsed)
                 return;
             
-            CreatePillsOrBottles(chemMaster, pills: true, message.Amount, message.Label, message.Session.AttachedEntity);
+            // Ensure the amount is valid.
+            if (message.Dosage == 0 || message.Dosage > chemMaster.PillDosageLimit)
+                return;
+
+            var needed = message.Dosage * message.Number;
+            if (!WithdrawFromBuffer(chemMaster, needed, user, out var withdrawal))
+                return;
+            
+            Label(container, message.Label);
+            
+            for (var i = 0; i < message.Number; i++)
+            {
+                var item = Spawn(PillPrototypeId, Transform(container).Coordinates);
+                DebugTools.Assert(_storageSystem.Insert(container, item, storage));
+                Label(item, message.Label);
+
+                var itemSolution = _solutionContainerSystem.EnsureSolution(item, SharedChemMaster.PillSolutionName);
+                
+                DebugTools.Assert(_solutionContainerSystem.TryAddSolution(
+                    item, itemSolution, withdrawal.SplitSolution(message.Dosage)));
+                
+                if (TryComp<SpriteComponent>(item, out var spriteComp))
+                    spriteComp.LayerSetState(0, "pill" + (chemMaster.PillType + 1));
+            }
+
             UpdateUiState(chemMaster);
             ClickSound(chemMaster);
         }
 
-        private void OnCreateBottlesMessage(EntityUid uid, ChemMasterComponent chemMaster, ChemMasterCreateBottlesMessage message)
+        private void OnOutputToBottleMessage(
+            EntityUid uid, ChemMasterComponent chemMaster, ChemMasterOutputToBottleMessage message)
         {
+            var user = message.Session.AttachedEntity;
+            var maybeContainer = _itemSlotsSystem.GetItem(chemMaster.Owner, SharedChemMaster.OutputSlotName);
+            if (maybeContainer is not { Valid: true } container
+                || !_solutionContainerSystem.TryGetSolution(
+                    container, SharedChemMaster.BottleSolutionName, out var solution))
+            {
+                return; // output can't fit reagents
+            }
+
             // Ensure the amount is valid.
-            if (message.Amount == 0 || message.Amount > chemMaster.BottleProductionLimit)
+            if (message.Dosage == 0 || message.Dosage > solution.AvailableVolume)
                 return;
             
-            CreatePillsOrBottles(chemMaster, pills: false, message.Amount, message.Label, message.Session.AttachedEntity);
+            if (!WithdrawFromBuffer(chemMaster, message.Dosage, user, out var withdrawal))
+                return;
+
+            Label(container, message.Label);
+            DebugTools.Assert(_solutionContainerSystem.TryAddSolution(
+                container, solution, withdrawal));
+
             UpdateUiState(chemMaster);
             ClickSound(chemMaster);
         }
 
-        private void CreatePillsOrBottles(ChemMasterComponent chemMaster, bool pills, FixedPoint2 amount, string label, EntityUid? user)
+        private bool WithdrawFromBuffer(
+            IComponent chemMaster,
+            FixedPoint2 neededVolume, EntityUid? user,
+            [NotNullWhen(returnValue: true)] out Solution? outputSolution)
         {
-            if (!_solutionContainerSystem.TryGetSolution(chemMaster.Owner, SharedChemMaster.BufferSolutionName, out var bufferSolution))
-                return;
+            outputSolution = null;
+            
+            if (!_solutionContainerSystem.TryGetSolution(
+                    chemMaster.Owner, SharedChemMaster.BufferSolutionName, out var solution))
+            {
+                return false;
+            }
 
             var filter = user.HasValue ? Filter.Entities(user.Value) : Filter.Empty();
-            if (bufferSolution.TotalVolume == 0)
+            if (solution.TotalVolume == 0)
             {
                 _popupSystem.PopupCursor(Loc.GetString("chem-master-window-buffer-empty-text"), filter);
-                return;
+                return false;
             }
 
-            var individualVolume = FixedPoint2.Min(bufferSolution.TotalVolume / amount, FixedPoint2.New(pills ? 50 : 30));
-            if (individualVolume < FixedPoint2.New(1))
+            // ReSharper disable once InvertIf
+            if (neededVolume > solution.CurrentVolume)
             {
                 _popupSystem.PopupCursor(Loc.GetString("chem-master-window-buffer-low-text"), filter);
+                return false;
+            }
+
+            outputSolution = solution.SplitSolution(neededVolume);
+            return true;
+        }
+
+        private void Label(EntityUid ent, string label)
+        {
+            if (string.IsNullOrEmpty(label)) 
                 return;
-            }
+            var labelComponent = EnsureComp<LabelComponent>(ent);
             
-            for (int i = 0; i < amount; i++)
-            {
-                var item = Spawn(pills ? "Pill" : "ChemistryEmptyBottle01", Transform(chemMaster.Owner).Coordinates);
-
-                if (label != "")
-                {
-                    var labelComponent = EnsureComp<LabelComponent>(item);
-                    labelComponent.OriginalName = Name(item);
-                    string val = Name(item) + $" ({label})";
-                    Comp<MetaDataComponent>(item).EntityName = val;
-                    labelComponent.CurrentLabel = label;
-                }
-
-                var solution = bufferSolution.SplitSolution(individualVolume);
-                var itemSolution = _solutionContainerSystem.EnsureSolution(item,
-                    pills ? SharedChemMaster.PillSolutionName : SharedChemMaster.BottleSolutionName);
-                _solutionContainerSystem.TryAddSolution(item, itemSolution, solution);
-
-                if (pills)
-                {
-                    if (TryComp<SpriteComponent>(item, out var spriteComp))
-                        spriteComp.LayerSetState(0, "pill" + (chemMaster.PillType + 1));
-                }
-
-                if (user.HasValue)
-                    _handsSystem.PickupOrDrop(user, item);
-            }
-
-            UpdateUiState(chemMaster);
+            labelComponent.OriginalName = Name(ent);
+            var val = Name(ent) + $" ({label})";
+            MetaData(ent).EntityName = val;
+            labelComponent.CurrentLabel = label;
         }
 
         private void ClickSound(ChemMasterComponent chemMaster)
         {
             _audioSystem.Play(chemMaster.ClickSound, Filter.Pvs(chemMaster.Owner), chemMaster.Owner, AudioParams.Default.WithVolume(-2f));
         }
+        
+        private ContainerInfo? BuildInputContainerInfo(EntityUid? container)
+        {
+            if (container is not { Valid: true })
+                return null;
+
+            if (!TryComp(container, out FitsInDispenserComponent? fits)
+                || !_solutionContainerSystem.TryGetSolution(container.Value, fits.Solution, out var solution))
+            {
+                return null;
+            }
+
+            return BuildContainerInfo(Name(container.Value), solution);
+        }
+
+        private ContainerInfo? BuildOutputContainerInfo(EntityUid? container)
+        {
+            if (container is not { Valid: true })
+                return null;
+
+            var name = Name(container.Value);
+            {
+                if (_solutionContainerSystem.TryGetSolution(
+                        container.Value, SharedChemMaster.BottleSolutionName, out var solution))
+                {
+                    return BuildContainerInfo(name, solution);
+                }
+            }
+
+            if (!TryComp(container, out ServerStorageComponent? storage))
+                return null;
+
+            var pills = storage.Storage?.ContainedEntities.Select(pill =>
+            {
+                _solutionContainerSystem.TryGetSolution(pill, SharedChemMaster.PillSolutionName, out var solution);
+                var quantity = solution?.CurrentVolume ?? FixedPoint2.Zero;
+                return (Name(pill), quantity);
+            }).ToList();
+
+            return pills is null
+                ? null
+                : new ContainerInfo(name, false, storage.StorageUsed, storage.StorageCapacityMax, pills);
+        }
+
+        private static ContainerInfo BuildContainerInfo(string name, Solution solution)
+        {
+            var reagents = solution.Contents
+                .Select(reagent => (reagent.ReagentId, reagent.Quantity)).ToList();
+
+            return new ContainerInfo(name, true, solution.CurrentVolume, solution.MaxVolume, reagents);
+        }
     }
 }

Content.Shared/Chemistry/Components/FitsInDispenserComponent.cs

@@ -2,11 +2,13 @@ using Robust.Shared.GameStates;
 
 namespace Content.Shared.Chemistry.Components
 {
+    /// <summary>
     /// Allows the entity with this component to be placed in a <c>SharedReagentDispenserComponent</c>.
     /// <para>Otherwise it's considered to be too large or the improper shape to fit.</para>
     /// <para>Allows us to have obscenely large containers that are harder to abuse in chem dispensers
     /// since they can't be placed directly in them.</para>
     /// <see cref="Dispenser.SharedReagentDispenserComponent"/>
+    /// </summary>
     [RegisterComponent]
     [NetworkedComponent] // only needed for white-lists. Client doesn't actually need Solution data;
     public sealed class FitsInDispenserComponent : Component

Content.Shared/Chemistry/SharedChemMaster.cs

@@ -11,7 +11,8 @@ namespace Content.Shared.Chemistry
     {
         public const uint PillTypes = 20;
         public const string BufferSolutionName = "buffer";
-        public const string ContainerSlotName = "beakerSlot";
+        public const string InputSlotName = "beakerSlot";
+        public const string OutputSlotName = "outputSlot";
         public const string PillSolutionName = "food";
         public const string BottleSolutionName = "drink";
     }
@@ -56,25 +57,27 @@ namespace Content.Shared.Chemistry
     [Serializable, NetSerializable]
     public sealed class ChemMasterCreatePillsMessage : BoundUserInterfaceMessage
     {
-        public readonly uint Amount;
+        public readonly uint Dosage;
+        public readonly uint Number;
         public readonly string Label;
 
-        public ChemMasterCreatePillsMessage(uint amount, string label)
+        public ChemMasterCreatePillsMessage(uint dosage, uint number, string label)
         {
-            Amount = amount;
+            Dosage = dosage;
+            Number = number;
             Label = label;
         }
     }
 
     [Serializable, NetSerializable]
-    public sealed class ChemMasterCreateBottlesMessage : BoundUserInterfaceMessage
+    public sealed class ChemMasterOutputToBottleMessage : BoundUserInterfaceMessage
     {
-        public readonly uint Amount;
+        public readonly uint Dosage;
         public readonly string Label;
 
-        public ChemMasterCreateBottlesMessage(uint amount, string label)
+        public ChemMasterOutputToBottleMessage(uint dosage, string label)
         {
-            Amount = amount;
+            Dosage = dosage;
             Label = label;
         }
     }
@@ -105,17 +108,53 @@ namespace Content.Shared.Chemistry
         }
     }
 
+    /// <summary>
+    /// Information about the capacity and contents of a container for display in the UI
+    /// </summary>
+    [Serializable, NetSerializable]
+    public sealed class ContainerInfo
+    {
+        /// <summary>
+        /// The container name to show to the player
+        /// </summary>
+        public readonly string DisplayName;
+        /// <summary>
+        /// Whether the container holds reagents or entities
+        /// </summary>
+        public readonly bool HoldsReagents;
+        /// <summary>
+        /// The currently used volume of the container
+        /// </summary>
+        public readonly FixedPoint2 CurrentVolume;
+        /// <summary>
+        /// The maximum volume of the container
+        /// </summary>
+        public readonly FixedPoint2 MaxVolume;
+        /// <summary>
+        /// A list of the reagents/entities and their sizes within the container
+        /// </summary>
+        // todo: this causes NetSerializer exceptions if it's an IReadOnlyList (which would be preferred)
+        public readonly List<(string Id, FixedPoint2 Quantity)> Contents;
+
+        public ContainerInfo(
+            string displayName, bool holdsReagents,
+            FixedPoint2 currentVolume, FixedPoint2 maxVolume,
+            List<(string, FixedPoint2)> contents)
+        {
+            DisplayName = displayName;
+            HoldsReagents = holdsReagents;
+            CurrentVolume = currentVolume;
+            MaxVolume = maxVolume;
+            Contents = contents;
+        }
+    }
+
     [Serializable, NetSerializable]
     public sealed class ChemMasterBoundUserInterfaceState : BoundUserInterfaceState
     {
-        public readonly FixedPoint2? ContainerCurrentVolume;
-        public readonly FixedPoint2? ContainerMaxVolume;
-        public readonly string? ContainerName;
+        public readonly ContainerInfo? InputContainerInfo;
+        public readonly ContainerInfo? OutputContainerInfo;
 
-        /// <summary>
-        /// A list of the reagents and their amounts within the beaker/reagent container, if applicable.
-        /// </summary>
-        public readonly IReadOnlyList<Solution.ReagentQuantity>? ContainerReagents;
         /// <summary>
         /// A list of the reagents and their amounts within the buffer, if applicable.
         /// </summary>
@@ -127,33 +166,26 @@ namespace Content.Shared.Chemistry
         public readonly FixedPoint2? BufferCurrentVolume;
         public readonly uint SelectedPillType;
 
-        public readonly uint PillProductionLimit;
-        public readonly uint BottleProductionLimit;
+        public readonly uint PillDosageLimit;
 
         public readonly bool UpdateLabel;
 
-        public ChemMasterBoundUserInterfaceState(FixedPoint2? containerCurrentVolume, FixedPoint2? containerMaxVolume, string? containerName,
-            string dispenserName, IReadOnlyList<Solution.ReagentQuantity>? containerReagents, IReadOnlyList<Solution.ReagentQuantity> bufferReagents, ChemMasterMode mode,
-            FixedPoint2 bufferCurrentVolume, uint selectedPillType, uint pillProdictionLimit, uint bottleProdictionLimit, bool updateLabel)
+        public ChemMasterBoundUserInterfaceState(
+            ChemMasterMode mode, string dispenserName,
+            ContainerInfo? inputContainerInfo, ContainerInfo? outputContainerInfo,
+            IReadOnlyList<Solution.ReagentQuantity> bufferReagents, FixedPoint2 bufferCurrentVolume,
+            uint selectedPillType, uint pillDosageLimit, bool updateLabel)
         {
-            ContainerCurrentVolume = containerCurrentVolume;
-            ContainerMaxVolume = containerMaxVolume;
-            ContainerName = containerName;
+            InputContainerInfo = inputContainerInfo;
+            OutputContainerInfo = outputContainerInfo;
             DispenserName = dispenserName;
-            ContainerReagents = containerReagents;
             BufferReagents = bufferReagents;
             Mode = mode;
             BufferCurrentVolume = bufferCurrentVolume;
             SelectedPillType = selectedPillType;
-            PillProductionLimit = pillProdictionLimit;
-            BottleProductionLimit = bottleProdictionLimit;
+            PillDosageLimit = pillDosageLimit;
             UpdateLabel = updateLabel;
         }
-
-        public bool HasContainer()
-        {
-            return ContainerCurrentVolume is not null;
-        }
     }
 
     [Serializable, NetSerializable]

Resources/Locale/en-US/chemistry/components/chem-master-component.ftl

@@ -8,6 +8,8 @@ chem-master-bound-user-interface-title = ChemMaster 4000
 
 ## UI
 
+chem-master-window-input-tab = Input
+chem-master-window-output-tab = Output
 chem-master-window-container-label = Container
 chem-master-window-eject-button = Eject
 chem-master-window-no-container-loaded-text = No container loaded.
@@ -22,9 +24,8 @@ chem-master-window-packaging-text = Packaging
 chem-master-current-text-label = Label:
 chem-master-window-pills-label = Pills:
 chem-master-window-pill-type-label = Pill type:
-chem-master-window-max-pills-volume-text = max 50u/each
-chem-master-window-max-bottles-volume-text = max 30u/each
-chem-master-window-create-pill-button = Create
-chem-master-window-create-bottle-button = Create
+chem-master-window-pills-number-label = Count:
+chem-master-window-dose-label = Dose (u):
+chem-master-window-create-button = Create
 chem-master-window-bottles-label = Bottles:
 chem-master-window-unknown-reagent-text = Unknown reagent

Resources/Prototypes/Entities/Structures/Machines/chem_master.yml

@@ -18,8 +18,7 @@
     sprite: Structures/Machines/mixer.rsi
     state: mixer_loaded
   - type: ChemMaster
-    pillProductionLimit: 10
-    bottleProductionLimit: 10
+    pillDosageLimit: 50
   - type: Physics
     bodyType: Static
   - type: Fixtures
@@ -61,15 +60,21 @@
   - type: ContainerContainer
     containers:
       beakerSlot: !type:ContainerSlot
+      outputSlot: !type:ContainerSlot
       machine_board: !type:Container
       machine_parts: !type:Container
   - type: ItemSlots
     slots:
       beakerSlot:
-        whitelistFailPopup: chem-master-component-cannot-put-entity-message
         whitelist:
           components:
           - FitsInDispenser
+      outputSlot:
+        whitelistFailPopup: chem-master-component-cannot-put-entity-message
+        whitelist:
+          tags:
+          - Bottle
+          - PillCanister
   - type: SolutionContainerManager
     solutions:
       buffer: {}