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Usage, Billing settings and prepaid AI credit; fixes from the UX audit11h ago	1	/**
	2	* The Usage page's pieces, shared by the workspace's page and a project's:
	3	* the filters, the included-usage and credit bar with what paid, the
	4	* consumption chart (stacked columns by product, money on one axis, a
	5	* tooltip per column, a legend, a table view), and the breakdown by
	6	* product family with sparklines, allowance rings and each meter's
	7	* projects. Every amount is usage at price, as on every other page.
	8	*/
	9	import { ChevronDown, Download, Ellipsis, FileCode } from "lucide-react";
	10	import { type ReactNode, useId, useRef } from "react";
	11	import { Form, Link } from "react-router";
	12
	13	import type { MeterLine, ProductUsage, UsageReport } from "@g1t/contracts";
	14
	15	import {
	16	type Column,
	17	type Grain,
	18	type GroupBy,
	19	PERIODS,
	20	type Period,
	21	axisMoney,
	22	byProject,
	23	money,
	24	productStyle,
	25	quantity,
	26	rangeLabel,
	27	receipt,
	28	shownLines,
	29	ticks,
	30	usageCsv,
	31	} from "../lib/usage";
	32	import { cn } from "../lib/cn";
	33	import { DropdownMenu, DropdownMenuContent, DropdownMenuItem, DropdownMenuTrigger } from "./ui/dropdown-menu";
Usage: a meter's note is the site's tooltip, caught by the no-native-title test10h ago	34	import { Hint } from "./ui/hint";
Usage, Billing settings and prepaid AI credit; fixes from the UX audit11h ago	35	import { Skeleton } from "./ui/skeleton";
	36
	37	const SELECT =
	38	"h-8 rounded-md border border-line bg-bg px-2 text-sm text-fg outline-none transition-colors hover:border-line-strong focus:border-accent-dim";
	39
	40	// --- Filters ------------------------------------------------------------------------
	41
	42	export type UsageFilters = {
	43	period: Period;
	44	from: string;
	45	until: string;
	46	products: string[];
	47	projects: string[];
	48	group: GroupBy;
	49	grain: Grain;
	50	cumulative: boolean;
	51	};
	52
	53	/** A multi-select as a disclosure of checkboxes, part of the filter form. */
	54	function MultiSelect({ name, label, options, chosen }: { name: string; label: string; options: { value: string; label: string }[]; chosen: string[] }) {
	55	const summary = chosen.length === 0 ? `All ${label.toLowerCase()}` : chosen.length === 1 ? (options.find((o) => o.value === chosen[0])?.label ?? chosen[0]) : `${chosen.length} ${label.toLowerCase()}`;
	56	return (
	57	<details className="group relative">
	58	<summary className={cn(SELECT, "flex cursor-pointer list-none items-center gap-1.5 [&::-webkit-details-marker]:hidden")}>
	59	<span className="text-muted">{label}:</span>
	60	<span className="max-w-[10rem] truncate">{summary}</span>
	61	<ChevronDown size={13} className="text-muted transition-transform group-open:rotate-180" />
	62	</summary>
	63	<div className="absolute left-0 z-20 mt-1 w-64 rounded-lg border border-line bg-raised p-2 shadow-xl">
	64	{options.length === 0 ? (
	65	<p className="px-2 py-1.5 text-sm text-faint">None in this range.</p>
	66	) : (
	67	<ul className="max-h-64 overflow-y-auto">
	68	{options.map((option) => (
	69	<li key={option.value}>
	70	<label className="flex cursor-pointer items-center gap-2 rounded px-2 py-1.5 text-sm hover:bg-surface">
	71	<input type="checkbox" name={name} value={option.value} defaultChecked={chosen.includes(option.value)} className="accent-[var(--g1t-accent)]" />
	72	<span className="truncate">{option.label}</span>
	73	</label>
	74	</li>
	75	))}
	76	</ul>
	77	)}
	78	<button type="submit" className="mt-2 w-full rounded-md bg-fg px-2 py-1.5 text-sm font-medium text-bg hover:bg-white">
	79	Apply
	80	</button>
	81	</div>
	82	</details>
	83	);
	84	}
	85
	86	/**
	87	* The filters, in one row above everything: period (with its days),
	88	* products, projects, group by, and a menu with the CSV and the API.
	89	* A plain GET form, so a filtered page is a link.
	90	*/
	91	export function UsageFilterBar({
	92	filters,
	93	products,
	94	projects,
	95	report,
	96	apiHref,
	97	fixedProject,
	98	}: {
	99	filters: UsageFilters;
	100	products: { key: string; label: string }[];
	101	projects: string[];
	102	report: UsageReport \| null;
	103	apiHref: string;
	104	/** A project's own page: no project filter. */
	105	fixedProject?: string;
	106	}) {
	107	const form = useRef<HTMLFormElement>(null);
	108	const submit = () => form.current?.requestSubmit();
	109	const download = () => {
	110	if (!report) return;
	111	const blob = new Blob([usageCsv(report)], { type: "text/csv" });
	112	const link = document.createElement("a");
	113	link.href = URL.createObjectURL(blob);
	114	link.download = `usage-${report.from}-${report.until}.csv`;
	115	link.click();
	116	URL.revokeObjectURL(link.href);
	117	};
	118	return (
	119	<Form ref={form} method="get" preventScrollReset className="flex flex-wrap items-center gap-2">
	120	<select name="period" defaultValue={filters.period} onChange={submit} className={SELECT} aria-label="Period">
	121	{(Object.keys(PERIODS) as Period[]).map((key) => (
	122	<option key={key} value={key}>
	123	{PERIODS[key]}
	124	</option>
	125	))}
	126	</select>
	127	{filters.period === "custom" ? (
	128	<span className="flex items-center gap-1 text-sm">
	129	<input type="date" name="from" defaultValue={filters.from} aria-label="From" className={SELECT} />
	130	<span className="text-faint">to</span>
	131	<input type="date" name="until" defaultValue={filters.until} aria-label="Until" className={SELECT} />
	132	</span>
	133	) : (
	134	<span className="px-1 text-sm text-muted tabular-nums">{rangeLabel(filters.from, filters.until)}</span>
	135	)}
	136	<MultiSelect name="product" label="Products" options={products.map((p) => ({ value: p.key, label: p.label }))} chosen={filters.products} />
	137	{!fixedProject && <MultiSelect name="project" label="Projects" options={projects.map((p) => ({ value: p, label: p }))} chosen={filters.projects} />}
	138	<select name="group" defaultValue={filters.group} onChange={submit} className={SELECT} aria-label="Group by">
	139	<option value="product">Group by product</option>
	140	{!fixedProject && <option value="project">Group by project</option>}
	141	<option value="day">Group by day</option>
	142	</select>
	143	<input type="hidden" name="grain" value={filters.grain} />
	144	{filters.cumulative && <input type="hidden" name="cumulative" value="1" />}
	145	<noscript>
	146	<button type="submit" className={SELECT}>
	147	Apply
	148	</button>
	149	</noscript>
	150	<span className="ml-auto" />
	151	<DropdownMenu>
	152	<DropdownMenuTrigger className={cn(SELECT, "inline-flex items-center")} aria-label="More">
	153	<Ellipsis size={15} />
	154	</DropdownMenuTrigger>
	155	<DropdownMenuContent align="end">
	156	<DropdownMenuItem onSelect={download} disabled={!report}>
	157	<Download size={14} /> Export CSV
	158	</DropdownMenuItem>
	159	<DropdownMenuItem asChild>
	160	<a href={apiHref}>
	161	<FileCode size={14} /> Usage API
	162	</a>
	163	</DropdownMenuItem>
	164	</DropdownMenuContent>
	165	</DropdownMenu>
	166	</Form>
	167	);
	168	}
	169
	170	// --- What is included and what paid ------------------------------------------------------
	171
	172	/** A bar of how much of something is used. */
	173	function Bar({ used, of, tone = "accent" }: { used: number; of: number; tone?: "accent" \| "warn" }) {
	174	const part = of > 0 ? Math.min(1, used / of) : 0;
	175	return (
	176	<div className="mt-2 h-1.5 overflow-hidden rounded-full bg-line" role="presentation">
Merge branch 'worktree-agent-ad7c6d88d93adc817'10h ago	177	<div className={cn("h-full rounded-full", tone === "warn" ? "bg-warn" : "bg-success")} style={{ width: `${part > 0 ? Math.max(2, part * 100) : 0}%` }} />
Usage, Billing settings and prepaid AI credit; fixes from the UX audit11h ago	178	</div>
	179	);
	180	}
	181
	182	/**
	183	* The plan's included usage, the credit balances, and the receipt: usage
	184	* at price, what a discount, included usage and credit took off, and what
	185	* is charged.
	186	*/
	187	export function IncludedAndCredit({ report, billingHref, owner }: { report: UsageReport; billingHref: string; owner: boolean }) {
	188	const lines = receipt(report.totals, report.discountPercent);
	189	const free = report.plan === "free";
	190	const fullDiscount = (report.discountPercent ?? 0) >= 100;
	191	return (
	192	<section className="grid gap-px overflow-hidden rounded-xl border border-line bg-line sm:grid-cols-3">
	193	<div className="bg-surface p-4">
	194	<p className="text-sm text-muted">{report.included ? "Included usage this month" : free ? "Trial credit" : "Plan"}</p>
	195	{report.included ? (
	196	<>
	197	<p className="mt-1 text-lg font-semibold tabular-nums">
	198	{money(report.included.used)} <span className="text-sm font-normal text-faint">/ {money(report.included.of)}</span>
	199	</p>
	200	<Bar used={report.included.used} of={report.included.of} />
	201	</>
	202	) : free ? (
	203	<>
	204	<p className="mt-1 text-lg font-semibold tabular-nums">{report.trialMicros != null ? `${money(report.trialMicros)} left` : "None"}</p>
	205	<p className="mt-1 text-xs text-faint">
	206	The forge is free. Compute needs the plan or the trial.{" "}
	207	<Link to={billingHref} className="text-fg-soft underline-offset-2 hover:underline">
	208	See plans
	209	</Link>
	210	</p>
	211	</>
	212	) : (
	213	<p className="mt-1 text-sm">{fullDiscount ? `${report.discountPercent}% discount from g1t` : report.plan === "enterprise" ? "Paid by an enterprise" : "On the g1t plan"}</p>
	214	)}
	215	</div>
	216	<div className="bg-surface p-4">
	217	<p className="text-sm text-muted">Credit</p>
	218	{fullDiscount ? (
	219	<p className="mt-1 text-sm">AI usage is free under the {report.discountPercent}% discount: nothing to buy.</p>
	220	) : (
	221	<dl className="mt-1 space-y-1 text-sm">
	222	<div className="flex justify-between gap-3">
	223	<dt className="text-muted">AI credit</dt>
	224	<dd className="font-medium tabular-nums">{money(report.aiCreditMicros)}</dd>
	225	</div>
	226	{report.creditMicros > 0 && (
	227	<div className="flex justify-between gap-3">
	228	<dt className="text-muted">Credit from g1t</dt>
	229	<dd className="tabular-nums">{money(report.creditMicros)}</dd>
	230	</div>
	231	)}
	232	{owner && report.plan === "paid" && (
	233	<dd>
	234	<Link to={`${billingHref}#ai-credit`} className="text-xs text-fg-soft underline-offset-2 hover:underline">
	235	Buy AI credit or turn on auto-reload
	236	</Link>
	237	</dd>
	238	)}
	239	</dl>
	240	)}
	241	</div>
	242	<div className="bg-surface p-4">
	243	<p className="text-sm text-muted">This range</p>
	244	<dl className="mt-1 space-y-1 text-sm">
	245	{lines.map((line, i) => (
	246	<div key={line.label} className={cn("flex justify-between gap-3", i === lines.length - 1 && "border-t border-line pt-1 font-medium")}>
	247	<dt className={i === lines.length - 1 ? "" : "text-muted"}>{line.label}</dt>
	248	<dd className="tabular-nums">
	249	{line.minus ? "−" : ""}
	250	{money(line.micros)}
	251	</dd>
	252	</div>
	253	))}
	254	</dl>
	255	{report.totals.pendingMicros > 0 && (
	256	<p className="mt-1 text-xs text-faint">{money(report.totals.pendingMicros)} of it is metered this month and charged when it closes.</p>
	257	)}
	258	</div>
	259	</section>
	260	);
	261	}
	262
	263	// --- The chart -----------------------------------------------------------------------------
	264
	265	const CHART_HEIGHT = 200;
	266
	267	/**
	268	* Consumption: one column per day (or week, or month), stacked by product,
	269	* money on the one axis. Hovering or focusing a column shows its products;
	270	* the legend names them; the table view has every number.
	271	*/
	272	export function UsageChart({
	273	columns,
	274	products,
	275	grain,
	276	cumulative,
	277	grainHref,
	278	cumulativeHref,
	279	}: {
	280	columns: Column[];
	281	products: ProductUsage[];
	282	grain: Grain;
	283	cumulative: boolean;
	284	grainHref: (grain: Grain) => string;
	285	cumulativeHref: string;
	286	}) {
	287	const used = products.filter((p) => p.micros !== 0 && columns.some((c) => (c.parts[p.key] ?? 0) !== 0));
	288	const max = Math.max(0, ...columns.map((c) => c.total));
	289	const scale = ticks(max);
	290	const top = scale[scale.length - 1] \|\| 1;
	291	const id = useId();
	292	const labelEvery = Math.max(1, Math.ceil(columns.length / 6));
	293	return (
	294	<section className="rounded-xl border border-line bg-surface p-4 sm:p-5" aria-labelledby={`${id}-title`}>
	295	<div className="flex flex-wrap items-center justify-between gap-3">
	296	<h2 id={`${id}-title`} className="font-medium">
	297	Consumption
	298	</h2>
	299	<div className="flex flex-wrap items-center gap-2 text-sm">
	300	<nav className="flex rounded-md border border-line p-0.5" aria-label="Columns">
	301	{(["day", "week", "month"] as Grain[]).map((g) => (
	302	<Link
	303	key={g}
	304	to={grainHref(g)}
	305	preventScrollReset
	306	aria-current={g === grain ? "true" : undefined}
	307	className={cn("rounded px-2 py-0.5 capitalize", g === grain ? "bg-raised text-fg" : "text-muted hover:text-fg")}
	308	>
	309	{g === "day" ? "Daily" : g === "week" ? "Weekly" : "Monthly"}
	310	</Link>
	311	))}
	312	</nav>
	313	<Link to={cumulativeHref} preventScrollReset className="flex items-center gap-1.5 text-muted hover:text-fg" role="checkbox" aria-checked={cumulative}>
	314	<span className={cn("grid size-3.5 place-items-center rounded-sm border", cumulative ? "border-accent bg-accent text-bg" : "border-line-strong")}>
	315	{cumulative && <span className="text-[0.6rem] leading-none">✓</span>}
	316	</span>
	317	Cumulative
	318	</Link>
	319	</div>
	320	</div>
	321	{used.length > 0 && (
	322	<ul className="mt-3 flex flex-wrap gap-x-4 gap-y-1 text-xs text-muted" aria-label="Legend">
	323	{used.map((p) => (
	324	<li key={p.key} className="flex items-center gap-1.5">
	325	<span className="size-2.5 rounded-sm" style={{ background: productStyle(p.key).color }} />
	326	{p.label}
	327	</li>
	328	))}
	329	</ul>
	330	)}
	331	<div className="mt-4 flex gap-2">
	332	{/* The one money axis: clean ticks, every label different. */}
	333	<div className="relative w-12 shrink-0 text-right text-[0.6875rem] text-faint tabular-nums" style={{ height: CHART_HEIGHT }} aria-hidden="true">
	334	{scale.map((t) => (
	335	<span key={t} className="absolute right-0 -translate-y-1/2" style={{ top: `${100 - (t / top) * 100}%` }}>
	336	{axisMoney(t)}
	337	</span>
	338	))}
	339	</div>
	340	<div className="relative min-w-0 flex-1" style={{ height: CHART_HEIGHT }}>
	341	{scale.map((t) => (
	342	<div key={t} className="absolute inset-x-0 border-t border-line" style={{ top: `${100 - (t / top) * 100}%` }} aria-hidden="true" />
	343	))}
	344	<div className="absolute inset-0 flex items-end" role="list" aria-label="Usage per column">
	345	{columns.map((column, i) => (
	346	<div
	347	key={column.key}
	348	role="listitem"
	349	tabIndex={0}
	350	aria-label={`${column.label}: ${money(column.total)}`}
	351	className="group relative flex h-full min-w-0 flex-1 flex-col items-center justify-end outline-none"
	352	>
	353	<div className="flex w-full max-w-6 flex-col-reverse gap-[2px] px-[1px]" style={{ height: `${(column.total / top) * 100}%` }}>
	354	{used
	355	.filter((p) => (column.parts[p.key] ?? 0) > 0)
	356	.map((p, at, all) => (
	357	<div
	358	key={p.key}
	359	className={cn("w-full min-h-[2px]", at === all.length - 1 && "rounded-t")}
	360	style={{ flexGrow: column.parts[p.key] ?? 0, flexBasis: 0, background: productStyle(p.key).color }}
	361	/>
	362	))}
	363	</div>
	364	<div className="absolute inset-y-0 left-1/2 -z-0 w-full -translate-x-1/2 rounded group-hover:bg-white/[0.03] group-focus-visible:bg-white/[0.05]" aria-hidden="true" />
	365	<div
	366	className={cn(
	367	"pointer-events-none absolute bottom-full z-10 mb-2 hidden w-52 rounded-lg border border-line-strong bg-raised p-2.5 text-xs shadow-xl group-hover:block group-focus-visible:block",
	368	i < columns.length / 2 ? "left-0" : "right-0",
	369	)}
	370	role="tooltip"
	371	>
	372	<p className="flex justify-between font-medium">
	373	<span>{column.label}</span>
	374	<span className="tabular-nums">{money(column.total)}</span>
	375	</p>
	376	<ul className="mt-1.5 space-y-1">
	377	{used.map((p) => (
	378	<li key={p.key} className="flex items-center justify-between gap-2 text-muted">
	379	<span className="flex items-center gap-1.5">
	380	<span className="size-2 rounded-sm" style={{ background: productStyle(p.key).color }} />
	381	{p.label}
	382	</span>
	383	<span className="tabular-nums text-fg-soft">{money(column.parts[p.key] ?? 0)}</span>
	384	</li>
	385	))}
	386	</ul>
	387	</div>
	388	</div>
	389	))}
	390	</div>
	391	</div>
	392	</div>
	393	<div className="ml-14 mt-1.5 flex text-[0.6875rem] text-faint" aria-hidden="true">
	394	{columns.map((column, i) => (
	395	<span key={column.key} className="min-w-0 flex-1 truncate text-center">
	396	{i % labelEvery === 0 ? column.label : ""}
	397	</span>
	398	))}
	399	</div>
	400	{max === 0 && <p className="mt-3 text-center text-sm text-faint">Nothing used in this range.</p>}
	401	<details className="mt-3 text-sm">
	402	<summary className="cursor-pointer text-xs text-muted hover:text-fg">Show as a table</summary>
	403	<div className="mt-2 max-h-72 overflow-auto">
	404	<table className="w-full text-left text-xs tabular-nums">
	405	<thead className="sticky top-0 bg-surface text-muted">
	406	<tr>
	407	<th className="py-1 pr-3 font-medium">{grain === "day" ? "Day" : grain === "week" ? "Week of" : "Month"}</th>
	408	{used.map((p) => (
	409	<th key={p.key} className="py-1 pr-3 text-right font-medium">
	410	{p.label}
	411	</th>
	412	))}
	413	<th className="py-1 text-right font-medium">{cumulative ? "Running total" : "Total"}</th>
	414	</tr>
	415	</thead>
	416	<tbody className="divide-y divide-line">
	417	{columns.map((column) => (
	418	<tr key={column.key}>
	419	<td className="py-1 pr-3">{column.label}</td>
	420	{used.map((p) => (
	421	<td key={p.key} className="py-1 pr-3 text-right">
	422	{money(column.parts[p.key] ?? 0)}
	423	</td>
	424	))}
	425	<td className="py-1 text-right">{money(column.total)}</td>
	426	</tr>
	427	))}
	428	</tbody>
	429	</table>
	430	</div>
	431	</details>
	432	</section>
	433	);
	434	}
	435
	436	// --- The breakdown ---------------------------------------------------------------------------
	437
	438	/** A meter's days as a small line, in the product's color. */
	439	export function Sparkline({ values, color }: { values: number[]; color: string }) {
	440	const max = Math.max(...values, 0);
	441	if (values.length < 2 \|\| max <= 0) return <span className="block h-5 w-20" aria-hidden="true" />;
	442	const points = values.map((v, i) => `${(i / (values.length - 1)) * 78 + 1},${19 - (v / max) * 17}`).join(" ");
	443	return (
	444	<svg viewBox="0 0 80 20" className="h-5 w-20" aria-hidden="true">
	445	<polyline points={points} fill="none" stroke={color} strokeWidth="1.5" strokeLinejoin="round" strokeLinecap="round" />
	446	</svg>
	447	);
	448	}
	449
	450	/** How much of an allowance is used, as a ring. */
	451	export function AllowanceRing({ used, of }: { used: number; of: number }) {
	452	const part = of > 0 ? Math.min(1, used / of) : 0;
	453	const r = 7;
	454	const c = 2 * Math.PI * r;
	455	return (
	456	<svg viewBox="0 0 18 18" className="size-4 shrink-0 -rotate-90" aria-hidden="true">
	457	<circle cx="9" cy="9" r={r} fill="none" stroke="var(--g1t-line-strong)" strokeWidth="2.5" />
Merge branch 'worktree-agent-ad7c6d88d93adc817'10h ago	458	<circle cx="9" cy="9" r={r} fill="none" stroke={part >= 1 ? "var(--g1t-warn)" : "var(--g1t-success)"} strokeWidth="2.5" strokeDasharray={`${part * c} ${c}`} strokeLinecap="round" />
Usage, Billing settings and prepaid AI credit; fixes from the UX audit11h ago	459	</svg>
	460	);
	461	}
	462
	463	function MeterUsed({ meter }: { meter: MeterLine }) {
	464	if (meter.allowance) {
	465	const unit = meter.allowance.unit;
	466	return (
	467	<span className="flex items-center gap-1.5 sm:justify-end">
	468	<AllowanceRing used={meter.allowance.used} of={meter.allowance.of} />
	469	<span>
	470	{quantity(meter.allowance.used, unit)} <span className="text-faint">/ {quantity(meter.allowance.of, unit).replace(/ (operations\|entries)$/, "")} free</span>
	471	</span>
	472	</span>
	473	);
	474	}
	475	return <span>{meter.quantity ? quantity(meter.quantity, meter.unit) : <span className="text-faint">—</span>}</span>;
	476	}
	477
	478	const ROW = "grid grid-cols-[minmax(0,1fr)_auto] items-center gap-x-4 gap-y-1 px-4 py-2.5 sm:grid-cols-[minmax(0,1fr)_5.5rem_14rem_6rem]";
	479
	480	/** One meter: its days, how much was used and its charge; open, its projects. */
	481	function MeterRow({ meter, color, projectHref }: { meter: MeterLine; color: string; projectHref?: (project: string) => string }) {
	482	const parts = meter.byProject.filter((p) => p.micros !== 0 \|\| p.quantity !== 0);
	483	const body = (
	484	<>
	485	<span className="flex min-w-0 items-center gap-2">
	486	<span className="size-2 shrink-0 rounded-sm" style={{ background: color }} />
Merge branch 'model-routing'10h ago	487	<span className="min-w-0">
	488	<span className="block truncate">{meter.label}</span>
Usage: a meter's note is the site's tooltip, caught by the no-native-title test10h ago	489	{meter.note && (
	490	<Hint label={meter.note}>
	491	<span className="block truncate text-[0.6875rem] text-faint">{meter.note}</span>
	492	</Hint>
	493	)}
Merge branch 'model-routing'10h ago	494	</span>
Usage, Billing settings and prepaid AI credit; fixes from the UX audit11h ago	495	{parts.length > 0 && <ChevronDown size={13} className="shrink-0 text-faint transition-transform group-open:rotate-180" />}
	496	</span>
	497	<span className="hidden sm:block">
	498	<Sparkline values={meter.daily} color={color} />
	499	</span>
	500	<span className="order-3 col-span-2 text-sm text-muted tabular-nums sm:order-none sm:col-span-1 sm:text-right">
	501	<MeterUsed meter={meter} />
	502	</span>
	503	<span className="text-right tabular-nums">
	504	{money(meter.micros)}
	505	{(meter.pendingMicros ?? 0) > 0 && <span className="block text-[0.6875rem] text-faint">{money(meter.pendingMicros ?? 0)} pending</span>}
	506	</span>
	507	</>
	508	);
	509	if (parts.length === 0) return <li className={cn(ROW, "text-sm")}>{body}</li>;
	510	return (
	511	<li>
	512	<details className="group">
	513	<summary className={cn(ROW, "cursor-pointer list-none text-sm hover:bg-raised/50 [&::-webkit-details-marker]:hidden")}>{body}</summary>
	514	<ul className="border-t border-line bg-bg/40 py-1">
	515	{parts.map((part) => (
	516	<li key={part.project \|\| "none"} className="flex justify-between gap-3 py-1.5 pl-10 pr-4 text-sm text-muted">
	517	<span className="truncate">
	518	{part.project ? (
	519	projectHref ? (
	520	<Link to={projectHref(part.project)} className="hover:text-fg hover:underline">
	521	{part.project}
	522	</Link>
	523	) : (
	524	part.project
	525	)
	526	) : (
	527	"Not tied to a project"
	528	)}
	529	</span>
	530	<span className="flex gap-4 tabular-nums">
	531	{part.quantity > 0 && meter.unit !== "entries" && <span className="hidden sm:inline">{quantity(part.quantity, meter.unit)}</span>}
	532	<span className="text-fg-soft">{money(part.micros)}</span>
	533	</span>
	534	</li>
	535	))}
	536	</ul>
	537	</details>
	538	</li>
	539	);
	540	}
	541
	542	/** The breakdown, by product family (or by project, or by day). */
	543	export function Breakdown({
	544	report,
	545	group,
	546	columns,
	547	projectHref,
	548	}: {
	549	report: UsageReport;
	550	group: GroupBy;
	551	columns: Column[];
	552	projectHref?: (project: string) => string;
	553	}) {
	554	const header = (first: string) => (
	555	<div className={cn(ROW, "border-b border-line py-2 text-xs text-muted")}>
	556	<span>{first}</span>
	557	<span className="hidden sm:block">Trend</span>
	558	<span className="hidden text-right sm:block">Usage</span>
	559	<span className="text-right">Charge at price</span>
	560	</div>
	561	);
	562	if (group === "project") {
	563	const rows = byProject(report);
	564	return (
	565	<section className="overflow-hidden rounded-xl border border-line bg-surface">
	566	<div className="grid grid-cols-[minmax(0,1fr)_auto] border-b border-line px-4 py-2 text-xs text-muted">
	567	<span>Project</span>
	568	<span>Charge at price</span>
	569	</div>
	570	{rows.length === 0 ? (
	571	<p className="px-4 py-6 text-center text-sm text-faint">Nothing used in this range.</p>
	572	) : (
	573	<ul className="divide-y divide-line">
	574	{rows.map((row) => (
	575	<li key={row.project \|\| "none"} className="px-4 py-2.5 text-sm">
	576	<div className="flex justify-between gap-3">
	577	<span className="truncate font-medium">
	578	{row.project ? projectHref ? <Link to={projectHref(row.project)} className="hover:underline">{row.project}</Link> : row.project : "Not tied to a project"}
	579	</span>
	580	<span className="tabular-nums">{money(row.micros)}</span>
	581	</div>
	582	<p className="mt-0.5 text-xs text-faint">{row.meters.map((m) => `${m.label} ${money(m.micros)}`).join(" · ")}</p>
	583	</li>
	584	))}
	585	</ul>
	586	)}
	587	</section>
	588	);
	589	}
	590	if (group === "day") {
	591	const days = columns.filter((c) => c.total !== 0).reverse();
	592	return (
	593	<section className="overflow-hidden rounded-xl border border-line bg-surface">
	594	<div className="grid grid-cols-[minmax(0,1fr)_auto] border-b border-line px-4 py-2 text-xs text-muted">
	595	<span>Day</span>
	596	<span>Charge at price</span>
	597	</div>
	598	{days.length === 0 ? (
	599	<p className="px-4 py-6 text-center text-sm text-faint">Nothing used in this range.</p>
	600	) : (
	601	<ul className="divide-y divide-line">
	602	{days.map((column) => (
	603	<li key={column.key} className="px-4 py-2.5 text-sm">
	604	<div className="flex justify-between gap-3">
	605	<span className="font-medium">{column.label}</span>
	606	<span className="tabular-nums">{money(column.total)}</span>
	607	</div>
	608	<p className="mt-0.5 text-xs text-faint">
	609	{Object.entries(column.parts)
	610	.filter(([, micros]) => micros !== 0)
	611	.map(([product, micros]) => `${productStyle(product).label} ${money(micros)}`)
	612	.join(" · ")}
	613	</p>
	614	</li>
	615	))}
	616	</ul>
	617	)}
	618	</section>
	619	);
	620	}
	621	const products = report.products.filter((p) => shownLines(p.meters).length > 0);
	622	return (
	623	<section className="overflow-hidden rounded-xl border border-line bg-surface">
	624	{header("Product")}
	625	{products.length === 0 ? (
	626	<p className="px-4 py-6 text-center text-sm text-faint">Nothing used in this range.</p>
	627	) : (
	628	products.map((product) => {
	629	const color = productStyle(product.key).color;
	630	return (
	631	<div key={product.key} className="border-b border-line last:border-b-0">
	632	<div className="flex items-baseline justify-between gap-3 bg-raised/40 px-4 py-2">
	633	<h3 className="text-sm font-medium">{product.label}</h3>
	634	<span className="text-sm font-medium tabular-nums">{money(product.micros)}</span>
	635	</div>
	636	{product.features && product.features.length > 0 && (
	637	<p className="px-4 pt-2 text-xs text-faint">
	638	{product.features.map((f) => `${f.label}${f.count ? ` (${f.count})` : ""} ${money(f.micros)}`).join(" · ")}
	639	</p>
	640	)}
Merge branch 'model-routing'10h ago	641	{product.key === "agent" && report.models && report.models.length > 0 && (
	642	<p className="px-4 pt-1 text-xs text-faint">
	643	Tokens by model:{" "}
	644	{report.models.map((m) => `${m.model} ${quantity(m.input + m.output + m.cacheRead + m.cacheWrite, "tokens")}`).join(" · ")}
	645	</p>
	646	)}
Usage, Billing settings and prepaid AI credit; fixes from the UX audit11h ago	647	<ul className="divide-y divide-line/60">
	648	{shownLines(product.meters).map((meter) => (
	649	<MeterRow key={meter.key} meter={meter} color={color} projectHref={projectHref} />
	650	))}
	651	</ul>
	652	</div>
	653	);
	654	})
	655	)}
	656	</section>
	657	);
	658	}
	659
	660	// --- Loading --------------------------------------------------------------------------------
	661
	662	/** Each region's shape while the report is on its way: the same heights, so nothing moves. */
	663	export function UsageSkeleton({ children }: { children?: ReactNode }) {
	664	return (
	665	<div className="space-y-6" aria-busy="true">
	666	<span role="status" className="sr-only">
	667	Loading usage…
	668	</span>
	669	{children}
	670	<div className="grid gap-px overflow-hidden rounded-xl border border-line bg-line sm:grid-cols-3" aria-hidden="true">
	671	{[0, 1, 2].map((i) => (
	672	<div key={i} className="h-[7.5rem] bg-surface p-4">
	673	<Skeleton className="h-3 w-28" />
	674	<Skeleton className="mt-3 h-5 w-20" />
	675	<Skeleton className="mt-3 h-1.5 w-full" />
	676	</div>
	677	))}
	678	</div>
	679	<div className="rounded-xl border border-line bg-surface p-5" aria-hidden="true">
	680	<Skeleton className="h-4 w-28" />
	681	<div className="mt-6 flex h-[200px] items-end gap-1">
	682	{Array.from({ length: 24 }, (_, i) => (
	683	<Skeleton key={i} className="flex-1 rounded-t" style={{ height: `${20 + ((i * 37) % 60)}%` }} />
	684	))}
	685	</div>
	686	</div>
	687	<div className="rounded-xl border border-line bg-surface" aria-hidden="true">
	688	{[0, 1, 2, 3, 4].map((i) => (
	689	<div key={i} className="flex items-center justify-between border-b border-line px-4 py-3 last:border-b-0">
	690	<Skeleton className="h-3 w-40" />
	691	<Skeleton className="h-3 w-16" />
	692	</div>
	693	))}
	694	</div>
	695	</div>
	696	);
	697	}

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