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src/components/UsageDashboard.tsx Normal file
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import React, { useState, useEffect } from "react";
import { motion } from "framer-motion";
import { Button } from "@/components/ui/button";
import { Card } from "@/components/ui/card";
import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
import { Badge } from "@/components/ui/badge";
import { api, type UsageStats, type ProjectUsage } from "@/lib/api";
import {
ArrowLeft,
TrendingUp,
Calendar,
Filter,
Loader2,
DollarSign,
Activity,
FileText,
Briefcase
} from "lucide-react";
import { cn } from "@/lib/utils";
interface UsageDashboardProps {
/**
* Callback when back button is clicked
*/
onBack: () => void;
}
/**
* UsageDashboard component - Displays Claude API usage statistics and costs
*
* @example
* <UsageDashboard onBack={() => setView('welcome')} />
*/
export const UsageDashboard: React.FC<UsageDashboardProps> = ({ onBack }) => {
const [loading, setLoading] = useState(true);
const [error, setError] = useState<string | null>(null);
const [stats, setStats] = useState<UsageStats | null>(null);
const [sessionStats, setSessionStats] = useState<ProjectUsage[] | null>(null);
const [selectedDateRange, setSelectedDateRange] = useState<"all" | "7d" | "30d">("all");
const [activeTab, setActiveTab] = useState("overview");
useEffect(() => {
loadUsageStats();
}, [selectedDateRange]);
const loadUsageStats = async () => {
try {
setLoading(true);
setError(null);
let statsData: UsageStats;
let sessionData: ProjectUsage[];
if (selectedDateRange === "all") {
statsData = await api.getUsageStats();
sessionData = await api.getSessionStats();
} else {
const endDate = new Date();
const startDate = new Date();
const days = selectedDateRange === "7d" ? 7 : 30;
startDate.setDate(startDate.getDate() - days);
const formatDateForApi = (date: Date) => {
const year = date.getFullYear();
const month = String(date.getMonth() + 1).padStart(2, '0');
const day = String(date.getDate()).padStart(2, '0');
return `${year}${month}${day}`;
}
statsData = await api.getUsageByDateRange(
startDate.toISOString(),
endDate.toISOString()
);
sessionData = await api.getSessionStats(
formatDateForApi(startDate),
formatDateForApi(endDate),
'desc'
);
}
setStats(statsData);
setSessionStats(sessionData);
} catch (err) {
console.error("Failed to load usage stats:", err);
setError("Failed to load usage statistics. Please try again.");
} finally {
setLoading(false);
}
};
const formatCurrency = (amount: number): string => {
return new Intl.NumberFormat('en-US', {
style: 'currency',
currency: 'USD',
minimumFractionDigits: 2,
maximumFractionDigits: 4
}).format(amount);
};
const formatNumber = (num: number): string => {
return new Intl.NumberFormat('en-US').format(num);
};
const formatTokens = (num: number): string => {
if (num >= 1_000_000) {
return `${(num / 1_000_000).toFixed(2)}M`;
} else if (num >= 1_000) {
return `${(num / 1_000).toFixed(1)}K`;
}
return formatNumber(num);
};
const getModelDisplayName = (model: string): string => {
const modelMap: Record<string, string> = {
"claude-4-opus": "Opus 4",
"claude-4-sonnet": "Sonnet 4",
"claude-3.5-sonnet": "Sonnet 3.5",
"claude-3-opus": "Opus 3",
};
return modelMap[model] || model;
};
const getModelColor = (model: string): string => {
if (model.includes("opus")) return "text-purple-500";
if (model.includes("sonnet")) return "text-blue-500";
return "text-gray-500";
};
return (
<div className="flex-1 flex flex-col overflow-hidden">
{/* Header */}
<motion.div
initial={{ opacity: 0, y: -20 }}
animate={{ opacity: 1, y: 0 }}
transition={{ duration: 0.3 }}
className="border-b border-border bg-background/95 backdrop-blur supports-[backdrop-filter]:bg-background/60"
>
<div className="flex items-center justify-between px-4 py-3">
<div className="flex items-center space-x-4">
<Button
variant="ghost"
size="icon"
onClick={onBack}
className="h-8 w-8"
>
<ArrowLeft className="h-4 w-4" />
</Button>
<div>
<h1 className="text-lg font-semibold">Usage Dashboard</h1>
<p className="text-xs text-muted-foreground">
Track your Claude Code usage and costs
</p>
</div>
</div>
{/* Date Range Filter */}
<div className="flex items-center space-x-2">
<Filter className="h-4 w-4 text-muted-foreground" />
<div className="flex space-x-1">
{(["all", "30d", "7d"] as const).map((range) => (
<Button
key={range}
variant={selectedDateRange === range ? "default" : "ghost"}
size="sm"
onClick={() => setSelectedDateRange(range)}
className="text-xs"
>
{range === "all" ? "All Time" : range === "7d" ? "Last 7 Days" : "Last 30 Days"}
</Button>
))}
</div>
</div>
</div>
</motion.div>
{/* Main Content */}
<div className="flex-1 overflow-auto p-4">
{loading ? (
<div className="flex items-center justify-center h-full">
<div className="text-center">
<Loader2 className="h-8 w-8 animate-spin text-muted-foreground mx-auto mb-4" />
<p className="text-sm text-muted-foreground">Loading usage statistics...</p>
</div>
</div>
) : error ? (
<div className="flex items-center justify-center h-full">
<div className="text-center max-w-md">
<p className="text-sm text-destructive mb-4">{error}</p>
<Button onClick={loadUsageStats} size="sm">
Try Again
</Button>
</div>
</div>
) : stats ? (
<motion.div
initial={{ opacity: 0 }}
animate={{ opacity: 1 }}
transition={{ duration: 0.3 }}
className="max-w-6xl mx-auto space-y-6"
>
{/* Summary Cards */}
<div className="grid grid-cols-1 md:grid-cols-4 gap-4">
{/* Total Cost Card */}
<Card className="p-4 shimmer-hover">
<div className="flex items-center justify-between">
<div>
<p className="text-xs text-muted-foreground">Total Cost</p>
<p className="text-2xl font-bold mt-1">
{formatCurrency(stats.total_cost)}
</p>
</div>
<DollarSign className="h-8 w-8 text-muted-foreground/20 rotating-symbol" />
</div>
</Card>
{/* Total Sessions Card */}
<Card className="p-4 shimmer-hover">
<div className="flex items-center justify-between">
<div>
<p className="text-xs text-muted-foreground">Total Sessions</p>
<p className="text-2xl font-bold mt-1">
{formatNumber(stats.total_sessions)}
</p>
</div>
<FileText className="h-8 w-8 text-muted-foreground/20 rotating-symbol" />
</div>
</Card>
{/* Total Tokens Card */}
<Card className="p-4 shimmer-hover">
<div className="flex items-center justify-between">
<div>
<p className="text-xs text-muted-foreground">Total Tokens</p>
<p className="text-2xl font-bold mt-1">
{formatTokens(stats.total_tokens)}
</p>
</div>
<Activity className="h-8 w-8 text-muted-foreground/20 rotating-symbol" />
</div>
</Card>
{/* Average Cost per Session Card */}
<Card className="p-4 shimmer-hover">
<div className="flex items-center justify-between">
<div>
<p className="text-xs text-muted-foreground">Avg Cost/Session</p>
<p className="text-2xl font-bold mt-1">
{formatCurrency(
stats.total_sessions > 0
? stats.total_cost / stats.total_sessions
: 0
)}
</p>
</div>
<TrendingUp className="h-8 w-8 text-muted-foreground/20 rotating-symbol" />
</div>
</Card>
</div>
{/* Tabs for different views */}
<Tabs value={activeTab} onValueChange={setActiveTab}>
<TabsList className="grid w-full grid-cols-5">
<TabsTrigger value="overview">Overview</TabsTrigger>
<TabsTrigger value="models">By Model</TabsTrigger>
<TabsTrigger value="projects">By Project</TabsTrigger>
<TabsTrigger value="sessions">By Session</TabsTrigger>
<TabsTrigger value="timeline">Timeline</TabsTrigger>
</TabsList>
{/* Overview Tab */}
<TabsContent value="overview" className="space-y-4">
<Card className="p-6">
<h3 className="text-sm font-semibold mb-4">Token Breakdown</h3>
<div className="grid grid-cols-2 md:grid-cols-4 gap-4">
<div>
<p className="text-xs text-muted-foreground">Input Tokens</p>
<p className="text-lg font-semibold">{formatTokens(stats.total_input_tokens)}</p>
</div>
<div>
<p className="text-xs text-muted-foreground">Output Tokens</p>
<p className="text-lg font-semibold">{formatTokens(stats.total_output_tokens)}</p>
</div>
<div>
<p className="text-xs text-muted-foreground">Cache Write</p>
<p className="text-lg font-semibold">{formatTokens(stats.total_cache_creation_tokens)}</p>
</div>
<div>
<p className="text-xs text-muted-foreground">Cache Read</p>
<p className="text-lg font-semibold">{formatTokens(stats.total_cache_read_tokens)}</p>
</div>
</div>
</Card>
{/* Quick Stats */}
<div className="grid grid-cols-1 md:grid-cols-2 gap-4">
<Card className="p-6">
<h3 className="text-sm font-semibold mb-4">Most Used Models</h3>
<div className="space-y-3">
{stats.by_model.slice(0, 3).map((model) => (
<div key={model.model} className="flex items-center justify-between">
<div className="flex items-center space-x-2">
<Badge variant="outline" className={cn("text-xs", getModelColor(model.model))}>
{getModelDisplayName(model.model)}
</Badge>
<span className="text-xs text-muted-foreground">
{model.session_count} sessions
</span>
</div>
<span className="text-sm font-medium">
{formatCurrency(model.total_cost)}
</span>
</div>
))}
</div>
</Card>
<Card className="p-6">
<h3 className="text-sm font-semibold mb-4">Top Projects</h3>
<div className="space-y-3">
{stats.by_project.slice(0, 3).map((project) => (
<div key={project.project_path} className="flex items-center justify-between">
<div className="flex flex-col">
<span className="text-sm font-medium truncate max-w-[200px]" title={project.project_path}>
{project.project_path}
</span>
<span className="text-xs text-muted-foreground">
{project.session_count} sessions
</span>
</div>
<span className="text-sm font-medium">
{formatCurrency(project.total_cost)}
</span>
</div>
))}
</div>
</Card>
</div>
</TabsContent>
{/* Models Tab */}
<TabsContent value="models">
<Card className="p-6">
<h3 className="text-sm font-semibold mb-4">Usage by Model</h3>
<div className="space-y-4">
{stats.by_model.map((model) => (
<div key={model.model} className="space-y-2">
<div className="flex items-center justify-between">
<div className="flex items-center space-x-3">
<Badge
variant="outline"
className={cn("text-xs", getModelColor(model.model))}
>
{getModelDisplayName(model.model)}
</Badge>
<span className="text-sm text-muted-foreground">
{model.session_count} sessions
</span>
</div>
<span className="text-sm font-semibold">
{formatCurrency(model.total_cost)}
</span>
</div>
<div className="grid grid-cols-4 gap-2 text-xs">
<div>
<span className="text-muted-foreground">Input: </span>
<span className="font-medium">{formatTokens(model.input_tokens)}</span>
</div>
<div>
<span className="text-muted-foreground">Output: </span>
<span className="font-medium">{formatTokens(model.output_tokens)}</span>
</div>
<div>
<span className="text-muted-foreground">Cache W: </span>
<span className="font-medium">{formatTokens(model.cache_creation_tokens)}</span>
</div>
<div>
<span className="text-muted-foreground">Cache R: </span>
<span className="font-medium">{formatTokens(model.cache_read_tokens)}</span>
</div>
</div>
</div>
))}
</div>
</Card>
</TabsContent>
{/* Projects Tab */}
<TabsContent value="projects">
<Card className="p-6">
<h3 className="text-sm font-semibold mb-4">Usage by Project</h3>
<div className="space-y-3">
{stats.by_project.map((project) => (
<div key={project.project_path} className="flex items-center justify-between py-2 border-b border-border last:border-0">
<div className="flex flex-col truncate">
<span className="text-sm font-medium truncate" title={project.project_path}>
{project.project_path}
</span>
<div className="flex items-center space-x-3 mt-1">
<span className="text-xs text-muted-foreground">
{project.session_count} sessions
</span>
<span className="text-xs text-muted-foreground">
{formatTokens(project.total_tokens)} tokens
</span>
</div>
</div>
<div className="text-right">
<p className="text-sm font-semibold">{formatCurrency(project.total_cost)}</p>
<p className="text-xs text-muted-foreground">
{formatCurrency(project.total_cost / project.session_count)}/session
</p>
</div>
</div>
))}
</div>
</Card>
</TabsContent>
{/* Sessions Tab */}
<TabsContent value="sessions">
<Card className="p-6">
<h3 className="text-sm font-semibold mb-4">Usage by Session</h3>
<div className="space-y-3">
{sessionStats?.map((session) => (
<div key={`${session.project_path}-${session.project_name}`} className="flex items-center justify-between py-2 border-b border-border last:border-0">
<div className="flex flex-col">
<div className="flex items-center space-x-2">
<Briefcase className="h-4 w-4 text-muted-foreground" />
<span className="text-xs font-mono text-muted-foreground truncate max-w-[200px]" title={session.project_path}>
{session.project_path.split('/').slice(-2).join('/')}
</span>
</div>
<span className="text-sm font-medium mt-1">
{session.project_name}
</span>
</div>
<div className="text-right">
<p className="text-sm font-semibold">{formatCurrency(session.total_cost)}</p>
<p className="text-xs text-muted-foreground">
{new Date(session.last_used).toLocaleDateString()}
</p>
</div>
</div>
))}
</div>
</Card>
</TabsContent>
{/* Timeline Tab */}
<TabsContent value="timeline">
<Card className="p-6">
<h3 className="text-sm font-semibold mb-6 flex items-center space-x-2">
<Calendar className="h-4 w-4" />
<span>Daily Usage</span>
</h3>
{stats.by_date.length > 0 ? (() => {
const maxCost = Math.max(...stats.by_date.map(d => d.total_cost), 0);
const halfMaxCost = maxCost / 2;
return (
<div className="relative pl-8 pr-4">
{/* Y-axis labels */}
<div className="absolute left-0 top-0 bottom-8 flex flex-col justify-between text-xs text-muted-foreground">
<span>{formatCurrency(maxCost)}</span>
<span>{formatCurrency(halfMaxCost)}</span>
<span>{formatCurrency(0)}</span>
</div>
{/* Chart container */}
<div className="flex items-end space-x-2 h-64 border-l border-b border-border pl-4">
{stats.by_date.slice().reverse().map((day) => {
const heightPercent = maxCost > 0 ? (day.total_cost / maxCost) * 100 : 0;
const date = new Date(day.date.replace(/-/g, '/'));
const formattedDate = date.toLocaleDateString('en-US', {
weekday: 'short',
month: 'short',
day: 'numeric'
});
return (
<div key={day.date} className="flex-1 h-full flex flex-col items-center justify-end group relative">
{/* Tooltip */}
<div className="absolute bottom-full mb-2 left-1/2 transform -translate-x-1/2 opacity-0 group-hover:opacity-100 transition-opacity duration-200 pointer-events-none z-10">
<div className="bg-background border border-border rounded-lg shadow-lg p-3 whitespace-nowrap">
<p className="text-sm font-semibold">{formattedDate}</p>
<p className="text-sm text-muted-foreground mt-1">
Cost: {formatCurrency(day.total_cost)}
</p>
<p className="text-xs text-muted-foreground">
{formatTokens(day.total_tokens)} tokens
</p>
<p className="text-xs text-muted-foreground">
{day.models_used.length} model{day.models_used.length !== 1 ? 's' : ''}
</p>
</div>
<div className="absolute top-full left-1/2 transform -translate-x-1/2 -mt-1">
<div className="border-4 border-transparent border-t-border"></div>
</div>
</div>
{/* Bar */}
<div
className="w-full bg-[#d97757] hover:opacity-80 transition-opacity rounded-t cursor-pointer"
style={{ height: `${heightPercent}%` }}
/>
{/* X-axis label – absolutely positioned below the bar so it doesn't affect bar height */}
<div
className="absolute left-1/2 top-full mt-1 -translate-x-1/2 text-xs text-muted-foreground -rotate-45 origin-top-left whitespace-nowrap pointer-events-none"
>
{date.toLocaleDateString('en-US', { month: 'short', day: 'numeric' })}
</div>
</div>
);
})}
</div>
{/* X-axis label */}
<div className="mt-8 text-center text-xs text-muted-foreground">
Daily Usage Over Time
</div>
</div>
)
})() : (
<div className="text-center py-8 text-sm text-muted-foreground">
No usage data available for the selected period
</div>
)}
</Card>
</TabsContent>
</Tabs>
</motion.div>
) : null}
</div>
</div>
);
};