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🤖 Add collapsed token meter sidebar #271

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Merged
merged 1 commit into from
Oct 16, 2025
Merged

🤖 Add collapsed token meter sidebar #271

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11 changes: 7 additions & 4 deletions src/components/AIView.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,8 @@ const ViewContainer = styled.div`
color: #d4d4d4;
font-family: var(--font-monospace);
font-size: 12px;
overflow: hidden;
overflow-x: auto;
overflow-y: hidden;
container-type: inline-size;
`;

Expand Down Expand Up @@ -203,6 +204,8 @@ const AIViewInner: React.FC<AIViewProps> = ({
workspacePath,
className,
}) => {
const chatAreaRef = useRef<HTMLDivElement>(null);

// NEW: Get workspace state from store (only re-renders when THIS workspace changes)
const workspaceState = useWorkspaceState(workspaceId);
const aggregator = useWorkspaceAggregator(workspaceId);
Expand Down Expand Up @@ -346,7 +349,7 @@ const AIViewInner: React.FC<AIViewProps> = ({
if (!workspaceState) {
return (
<ViewContainer className={className}>
<ChatArea>
<ChatArea ref={chatAreaRef}>
<OutputContainer>
<LoadingIndicator>Loading workspace...</LoadingIndicator>
</OutputContainer>
Expand Down Expand Up @@ -405,7 +408,7 @@ const AIViewInner: React.FC<AIViewProps> = ({
return (
<ChatProvider messages={messages} cmuxMessages={cmuxMessages} model={currentModel ?? "unknown"}>
<ViewContainer className={className}>
<ChatArea>
<ChatArea ref={chatAreaRef}>
<ViewHeader>
<WorkspaceTitle>
<StatusIndicator
Expand Down Expand Up @@ -532,7 +535,7 @@ const AIViewInner: React.FC<AIViewProps> = ({
/>
</ChatArea>

<ChatMetaSidebar workspaceId={workspaceId} />
<ChatMetaSidebar workspaceId={workspaceId} chatAreaRef={chatAreaRef} />
</ViewContainer>
</ChatProvider>
);
Expand Down
159 changes: 116 additions & 43 deletions src/components/ChatMetaSidebar.tsx
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Original file line number Diff line number Diff line change
@@ -1,20 +1,48 @@
import React from "react";
import styled from "@emotion/styled";
import { usePersistedState } from "@/hooks/usePersistedState";
import { useChatContext } from "@/contexts/ChatContext";
import { use1MContext } from "@/hooks/use1MContext";
import { useResizeObserver } from "@/hooks/useResizeObserver";
import { CostsTab } from "./ChatMetaSidebar/CostsTab";
import { ToolsTab } from "./ChatMetaSidebar/ToolsTab";
import { VerticalTokenMeter } from "./ChatMetaSidebar/VerticalTokenMeter";
import { calculateTokenMeterData } from "@/utils/tokens/tokenMeterUtils";

const SidebarContainer = styled.div`
width: 300px;
interface SidebarContainerProps {
collapsed: boolean;
}

const SidebarContainer = styled.div<SidebarContainerProps>`
width: ${(props) => (props.collapsed ? "20px" : "300px")};
background: #252526;
border-left: 1px solid #3e3e42;
display: flex;
flex-direction: column;
overflow: hidden;
transition: width 0.2s ease;
flex-shrink: 0;

@container (max-width: 949px) {
display: none;
}
/* Keep vertical bar always visible when collapsed */
${(props) =>
props.collapsed &&
`
position: sticky;
right: 0;
z-index: 10;
box-shadow: -2px 0 4px rgba(0, 0, 0, 0.2);
`}
`;

const FullView = styled.div<{ visible: boolean }>`
display: ${(props) => (props.visible ? "flex" : "none")};
flex-direction: column;
height: 100%;
`;

const CollapsedView = styled.div<{ visible: boolean }>`
display: ${(props) => (props.visible ? "flex" : "none")};
height: 100%;
`;

const TabBar = styled.div`
Expand Down Expand Up @@ -56,58 +84,103 @@ type TabType = "costs" | "tools";

interface ChatMetaSidebarProps {
workspaceId: string;
chatAreaRef: React.RefObject<HTMLDivElement>;
}

export const ChatMetaSidebar: React.FC<ChatMetaSidebarProps> = ({ workspaceId }) => {
export const ChatMetaSidebar: React.FC<ChatMetaSidebarProps> = ({ workspaceId, chatAreaRef }) => {
const [selectedTab, setSelectedTab] = usePersistedState<TabType>(
`chat-meta-sidebar-tab:${workspaceId}`,
"costs"
);

const { stats } = useChatContext();
const [use1M] = use1MContext();
const chatAreaSize = useResizeObserver(chatAreaRef);

const baseId = `chat-meta-${workspaceId}`;
const costsTabId = `${baseId}-tab-costs`;
const toolsTabId = `${baseId}-tab-tools`;
const costsPanelId = `${baseId}-panel-costs`;
const toolsPanelId = `${baseId}-panel-tools`;

const lastUsage = stats?.usageHistory[stats.usageHistory.length - 1];

// Memoize vertical meter data calculation to prevent unnecessary re-renders
const verticalMeterData = React.useMemo(() => {
return lastUsage && stats
? calculateTokenMeterData(lastUsage, stats.model, use1M, true)
: { segments: [], totalTokens: 0, totalPercentage: 0 };
}, [lastUsage, stats, use1M]);

// Calculate if we should show collapsed view with hysteresis
// Strategy: Observe ChatArea width directly (independent of sidebar width)
// - ChatArea has min-width: 750px and flex: 1
// - Use hysteresis to prevent oscillation:
// * Collapse when chatAreaWidth <= 800px (tight space)
// * Expand when chatAreaWidth >= 1100px (lots of space)
// * Between 800-1100: maintain current state (dead zone)
const COLLAPSE_THRESHOLD = 800; // Collapse below this
const EXPAND_THRESHOLD = 1100; // Expand above this
const chatAreaWidth = chatAreaSize?.width ?? 1000; // Default to large to avoid flash

const [showCollapsed, setShowCollapsed] = React.useState(false);

React.useEffect(() => {
if (chatAreaWidth <= COLLAPSE_THRESHOLD) {
setShowCollapsed(true);
} else if (chatAreaWidth >= EXPAND_THRESHOLD) {
setShowCollapsed(false);
}
// Between thresholds: maintain current state (no change)
}, [chatAreaWidth]);

return (
<SidebarContainer role="complementary" aria-label="Workspace insights">
<TabBar role="tablist" aria-label="Metadata views">
<TabButton
active={selectedTab === "costs"}
onClick={() => setSelectedTab("costs")}
id={costsTabId}
role="tab"
type="button"
aria-selected={selectedTab === "costs"}
aria-controls={costsPanelId}
>
Costs
</TabButton>
<TabButton
active={selectedTab === "tools"}
onClick={() => setSelectedTab("tools")}
id={toolsTabId}
role="tab"
type="button"
aria-selected={selectedTab === "tools"}
aria-controls={toolsPanelId}
>
Tools
</TabButton>
</TabBar>
<TabContent>
{selectedTab === "costs" && (
<div role="tabpanel" id={costsPanelId} aria-labelledby={costsTabId}>
<CostsTab />
</div>
)}
{selectedTab === "tools" && (
<div role="tabpanel" id={toolsPanelId} aria-labelledby={toolsTabId}>
<ToolsTab />
</div>
)}
</TabContent>
<SidebarContainer
collapsed={showCollapsed}
role="complementary"
aria-label="Workspace insights"
>
<FullView visible={!showCollapsed}>
<TabBar role="tablist" aria-label="Metadata views">
<TabButton
active={selectedTab === "costs"}
onClick={() => setSelectedTab("costs")}
id={costsTabId}
role="tab"
type="button"
aria-selected={selectedTab === "costs"}
aria-controls={costsPanelId}
>
Costs
</TabButton>
<TabButton
active={selectedTab === "tools"}
onClick={() => setSelectedTab("tools")}
id={toolsTabId}
role="tab"
type="button"
aria-selected={selectedTab === "tools"}
aria-controls={toolsPanelId}
>
Tools
</TabButton>
</TabBar>
<TabContent>
{selectedTab === "costs" && (
<div role="tabpanel" id={costsPanelId} aria-labelledby={costsTabId}>
<CostsTab />
</div>
)}
{selectedTab === "tools" && (
<div role="tabpanel" id={toolsPanelId} aria-labelledby={toolsTabId}>
<ToolsTab />
</div>
)}
</TabContent>
</FullView>
<CollapsedView visible={showCollapsed}>
<VerticalTokenMeter data={verticalMeterData} />
</CollapsedView>
</SidebarContainer>
);
};
27 changes: 10 additions & 17 deletions src/components/ChatMetaSidebar/CostsTab.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ import { usePersistedState } from "@/hooks/usePersistedState";
import { ToggleGroup, type ToggleOption } from "../ToggleGroup";
import { use1MContext } from "@/hooks/use1MContext";
import { supports1MContext } from "@/utils/ai/models";
import { TOKEN_COMPONENT_COLORS } from "@/utils/tokens/tokenMeterUtils";

const Container = styled.div`
color: #d4d4d4;
Expand Down Expand Up @@ -86,14 +87,6 @@ interface SegmentProps {
percentage: number;
}

// Component color mapping - single source of truth for all cost component colors
const COMPONENT_COLORS = {
cached: "var(--color-token-cached)",
input: "var(--color-token-input)",
output: "var(--color-token-output)",
thinking: "var(--color-thinking-mode)",
} as const;

const FixedSegment = styled.div<SegmentProps>`
height: 100%;
width: ${(props) => props.percentage}%;
Expand All @@ -111,28 +104,28 @@ const VariableSegment = styled.div<SegmentProps>`
const InputSegment = styled.div<SegmentProps>`
height: 100%;
width: ${(props) => props.percentage}%;
background: ${COMPONENT_COLORS.input};
background: ${TOKEN_COMPONENT_COLORS.input};
transition: width 0.3s ease;
`;

const OutputSegment = styled.div<SegmentProps>`
height: 100%;
width: ${(props) => props.percentage}%;
background: ${COMPONENT_COLORS.output};
background: ${TOKEN_COMPONENT_COLORS.output};
transition: width 0.3s ease;
`;

const ThinkingSegment = styled.div<SegmentProps>`
height: 100%;
width: ${(props) => props.percentage}%;
background: ${COMPONENT_COLORS.thinking};
background: ${TOKEN_COMPONENT_COLORS.thinking};
transition: width 0.3s ease;
`;

const CachedSegment = styled.div<SegmentProps>`
height: 100%;
width: ${(props) => props.percentage}%;
background: ${COMPONENT_COLORS.cached};
background: ${TOKEN_COMPONENT_COLORS.cached};
transition: width 0.3s ease;
`;

Expand Down Expand Up @@ -452,35 +445,35 @@ export const CostsTab: React.FC = () => {
name: "Cache Read",
tokens: displayUsage.cached.tokens,
cost: displayUsage.cached.cost_usd,
color: COMPONENT_COLORS.cached,
color: TOKEN_COMPONENT_COLORS.cached,
show: displayUsage.cached.tokens > 0,
},
{
name: "Cache Create",
tokens: displayUsage.cacheCreate.tokens,
cost: displayUsage.cacheCreate.cost_usd,
color: COMPONENT_COLORS.cached,
color: TOKEN_COMPONENT_COLORS.cached,
show: displayUsage.cacheCreate.tokens > 0,
},
{
name: "Input",
tokens: displayUsage.input.tokens,
cost: adjustedInputCost,
color: COMPONENT_COLORS.input,
color: TOKEN_COMPONENT_COLORS.input,
show: true,
},
{
name: "Output",
tokens: displayUsage.output.tokens,
cost: adjustedOutputCost,
color: COMPONENT_COLORS.output,
color: TOKEN_COMPONENT_COLORS.output,
show: true,
},
{
name: "Thinking",
tokens: displayUsage.reasoning.tokens,
cost: adjustedReasoningCost,
color: COMPONENT_COLORS.thinking,
color: TOKEN_COMPONENT_COLORS.thinking,
show: displayUsage.reasoning.tokens > 0,
},
].filter((c) => c.show)
Expand Down
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