/** Hierarchical totals — a tree of groups whose figures roll up to the parent. */
import { useState } from "react";
import { Text } from "@lotics/ui/text";
import { colors, solid } from "@lotics/ui/colors";
import { Accordion, AccordionContent, AccordionHeader, AccordionTitle } from "@lotics/ui/accordion";
import { Box } from "@lotics/ui/box";
import { Button } from "@lotics/ui/button";
import { Card, CardFooter, CardHeader, CardHeaderTitle } from "@lotics/ui/card";
import { Divider } from "@lotics/ui/divider";
import { Drawer, DrawerScrollArea } from "@lotics/ui/drawer";
import { MetricStrip } from "@lotics/ui/metric_strip";
import { RowFocusEntry } from "@lotics/ui/row_focus_entry";
import { PressableRow } from "@lotics/ui/pressable_row";
import { ScrollArea } from "@lotics/ui/scroll_area";
import { Sparkline } from "@lotics/ui/sparkline";
import { Stack } from "@lotics/ui/stack";
import { useContainerSize } from "@lotics/ui/size_boundary";
// ─────────────────────────────────────────────────────────────────────────────
// Template, Hierarchy rollup — hierarchical totals with drill: region →
// site → lane, every level carrying the SAME aligned metric columns so a
// bad number can be chased down the tree ("which branch drags the
// total?"). Pure composition: nested Accordions + a fixed-width column
// map; under-target branches are flagged at every level so the drill
// path is visible before expanding. Leaf rows open a sequenced drawer
// over their site's lanes.
// ─────────────────────────────────────────────────────────────────────────────
const ONTIME_TARGET = 88;
interface Lane {
id: string;
dest: string;
volume: number;
ontime: number;
margin: number;
}
interface Site {
key: string;
label: string;
lanes: Lane[];
}
interface Region {
key: string;
label: string;
sites: Site[];
}
// Deterministic 12-week volume history for the drawer sparkline.
function hash(i: number, salt: number): number {
let x = (i + 1) * 2654435761 + salt * 40503;
x = ((x >>> 16) ^ x) * 0x45d9f3b;
x = ((x >>> 16) ^ x) * 0x45d9f3b;
return (x >>> 16) % 1000;
}
const lane = (site: string, n: number, dest: string, volume: number, ontime: number, margin: number): Lane => ({
id: `LN-${site}-${String(n).padStart(2, "0")}`, dest, volume, ontime, margin,
});
// The story: South region drags the network — Southbay's lanes run late.
const REGIONS: Region[] = [
{
key: "north", label: "North region",
sites: [
{ key: "EP", label: "Eastport", lanes: [
lane("EP", 1, "Arden", 4180, 96, 22), lane("EP", 2, "Brookfield", 3460, 94, 19),
lane("EP", 3, "Centerville", 2210, 91, 24), lane("EP", 4, "Dalton", 1730, 97, 17),
]},
{ key: "NG", label: "Northgate", lanes: [
lane("NG", 1, "Edgewater", 3040, 93, 21), lane("NG", 2, "Fairview", 2380, 95, 18),
lane("NG", 3, "Hillcrest", 1610, 92, 23),
]},
],
},
{
key: "central", label: "Central region",
sites: [
{ key: "RS", label: "Riverside", lanes: [
lane("RS", 1, "Kingsport", 2870, 90, 16), lane("RS", 2, "Lakeside", 2140, 94, 20),
lane("RS", 3, "Midvale", 1890, 89, 14),
]},
{ key: "MH", label: "Midvale Hub", lanes: [
lane("MH", 1, "Norwood", 2520, 92, 18), lane("MH", 2, "Arden", 1480, 96, 15),
lane("MH", 3, "Granton", 1160, 87, 12),
]},
],
},
{
key: "south", label: "South region",
sites: [
{ key: "SB", label: "Southbay", lanes: [
lane("SB", 1, "Fairview", 2640, 81, 11), lane("SB", 2, "Dalton", 2310, 84, 13),
lane("SB", 3, "Lakeside", 1820, 79, 9),
]},
{ key: "GR", label: "Granton", lanes: [
lane("GR", 1, "Brookfield", 1540, 90, 16), lane("GR", 2, "Norwood", 980, 86, 14),
]},
],
},
];
// Volume-weighted rollups — a small lane can't mask a big one.
function rollup(lanes: Lane[]) {
const volume = lanes.reduce((s, l) => s + l.volume, 0);
const ontime = Math.round(lanes.reduce((s, l) => s + l.ontime * l.volume, 0) / volume);
const margin = Math.round(lanes.reduce((s, l) => s + l.margin * l.volume, 0) / volume);
return { volume, ontime, margin };
}
const ALL_LANES = REGIONS.flatMap((r) => r.sites.flatMap((s) => s.lanes));
const NETWORK = rollup(ALL_LANES);
const UNDER_TARGET = ALL_LANES.filter((l) => l.ontime < ONTIME_TARGET).length;
/** The shared column map — identical at every level of the tree. */
/**
* The column map, and the one it sheds to. A tree is scanned DOWN its numbers,
* so every level keeps ONE line per node and the columns give way instead of
* wrapping: 88 + 218 of fixed columns leaves a phone's row nothing for the
* branch it names. On-time is what survives, because it is the metric the flags
* and the whole drill are about; volume and margin are a lane's drawer.
*/
const COLS = { id: 88, volume: 90, ontime: 64, margin: 64 } as const;
const NARROW_COLS = { id: 72, ontime: 56 } as const;
function MetricCols({ volume, ontime, margin, weight, narrow }: { volume: number; ontime: number; margin: number; weight?: "medium"; narrow: boolean }) {
return (
<>
{narrow ? null : (
{volume.toLocaleString("en-US")}
)}
{`${ontime}%`}
{narrow ? null : (
{`${margin}%`}
)}
);
}
function KVRow({ label, children }: { label: string; children: React.ReactNode }) {
return (
{label}
{children}
);
}
export function TplRollup() {
// Drawer walks the opened lane's site — the natural sibling group.
const [open, setOpen] = useState<{ site: Site; idx: number } | null>(null);
const openLane = open ? open.site.lanes[open.idx] : null;
const { small } = useContainerSize();
return (
{/* header band */}
Network rollup
This month by region, site and lane — expand the branch that drags the total
By region, site, lane
{/* overline columns — match the tree's column map exactly */}
Branch
{small ? null : Volume}
On-time
{small ? null : Margin}
{REGIONS.map((region, ri) => {
const regionTotals = rollup(region.sites.flatMap((s) => s.lanes));
return (
{ri > 0 ? : null}
{/* A RUN THAT MARKS ONE ROW MARKS THEM ALL. The glyph
gutter follows the glyph (`AccordionTitle`), so a
branch given one only when it is behind target would
start its name 28px right of the branch above it —
and a column of names that steps where the reading
changes is the hardest kind to scan. Both answers
are stated, which is also the honest reading: on
target is a verdict, not an absence. */}
{region.label}
{region.sites.map((site) => {
const siteTotals = rollup(site.lanes);
return (
{site.label}
{site.lanes.map((l, li) => (
// The row takes the pointer and paints the wash;
// the door beneath its cells takes the keyboard,
// the name and the ring.
setOpen({ site, idx: li })}
style={{ minHeight: 40 }}
>
setOpen({ site, idx: li })}
accessibilityLabel={`Open lane ${l.id} to ${l.dest}`}
radius={8}
/>
{l.id}
{`→ ${l.dest}`}
))}
);
})}
);
})}
{`Network: ${NETWORK.volume.toLocaleString("en-US")} units, ${NETWORK.ontime}% on-time, ${NETWORK.margin}% margin`}
{/* The overlay is RENDERED and its `open` toggles — a `{cond ? : null}` is the
one shape an overlay may not take. Only the BODY is conditional. */}
!o && setOpen(null)}
title={openLane?.id}
width={440}
onPrev={open !== null && open.idx > 0 ? () => setOpen({ site: open.site, idx: open.idx - 1 }) : undefined}
onNext={open !== null && open.idx < open.site.lanes.length - 1 ? () => setOpen({ site: open.site, idx: open.idx + 1 }) : undefined}
position={open !== null ? { index: open.idx + 1, total: open.site.lanes.length } : undefined}
>
{open !== null && openLane !== null ? (
<>
{`${open.site.label} → ${openLane.dest}`}
{openLane.volume.toLocaleString("en-US")}
{`${openLane.ontime}% (target ${ONTIME_TARGET}%)`}
{`${openLane.margin}%`}
Volume (last 12 weeks)
openLane.volume / 4 + (hash(w, openLane.volume) - 500) * (openLane.volume / 12000))}
width={200}
height={36}
color={openLane.ontime < ONTIME_TARGET ? solid("amber") : solid("blue")}
/>
) : null}
);
}