Files
NestQuest/admin/src/history/HistoryTab.tsx
T

301 lines
10 KiB
TypeScript

/**
* History tab — the append-only event log (design/ADMIN-SPEC.md §5).
*
* Rows are read-only: events are never edited or deleted, and a reversal is
* its own row (D-005).
*/
import { useEffect, useRef, useState } from "react";
import { ApiForbiddenError } from "../api/client";
import type { TransitionEvent } from "../api/events";
import { useTransitions } from "../api/useTransitions";
import { exportHistoryCsv, fetchHistory, type HistoryFilter, type HistoryRow } from "../api/history";
import { localTodayIso } from "../schedule/cycle";
import { dayLabel, groupByDay, rowMeta, rowTime, shiftIso } from "./format";
import { DownloadGlyph, LockGlyph } from "./glyphs";
import "./HistoryTab.css";
/** ADMIN-SPEC §1: every scroll column ends with 92px so content clears the tab bar. */
export const SCROLL_BOTTOM_PADDING = "92px";
export const RANGE_DAYS = 14;
export const FOOTER_NOTE = "Events are never edited or deleted. A reversal is its own row.";
export const FILTERS: { id: HistoryFilter; label: string }[] = [
{ id: "all", label: "All events" },
{ id: "reversals", label: "Reversals" },
{ id: "missed", label: "Missed" },
];
export interface HistoryStats {
/** Whole percent, or null when the period has no completions. */
onTimePct: number | null;
completed: number;
missed: number;
}
/** Per-period stats from the `all` rows (completions) and the `missed` rows. */
export function computeStats(allRows: HistoryRow[], missedRows: HistoryRow[]): HistoryStats {
const completions = allRows.filter((row) => row.event_type === "completed");
const onTime = completions.filter((row) => row.was_on_time === true).length;
return {
onTimePct: completions.length > 0 ? Math.round((onTime / completions.length) * 100) : null,
completed: completions.length,
missed: missedRows.filter((row) => row.event_type === "missed").length,
};
}
interface Loaded {
rows: HistoryRow[];
stats: HistoryStats;
}
type LoadState =
| { kind: "loading" }
| { kind: "error"; message: string }
/** `key` is the (filter, start, end) the rows were loaded for. */
| { kind: "ready"; data: Loaded; key: string };
/**
* The selected filter's rows plus the period stats. Stats always come from
* the `all` and `missed` queries, whichever chip is selected, so switching
* chips never changes the period's numbers.
*/
async function loadHistory(filter: HistoryFilter, start: string, end: string): Promise<Loaded> {
const [selected, all, missed] = await Promise.all([
fetchHistory(filter, start, end),
filter === "all" ? null : fetchHistory("all", start, end),
filter === "missed" ? null : fetchHistory("missed", start, end),
]);
return {
rows: selected.rows,
stats: computeStats((all ?? selected).rows, (missed ?? selected).rows),
};
}
/** Offer a Blob as a file download without navigating the page. */
export function offerDownload(blob: Blob, filename: string): void {
const url = URL.createObjectURL(blob);
const anchor = document.createElement("a");
anchor.href = url;
anchor.download = filename;
anchor.style.display = "none";
document.body.appendChild(anchor);
try {
anchor.click();
} finally {
anchor.remove();
URL.revokeObjectURL(url);
}
}
function ScreenHeader({ exporting, onExport }: { exporting: boolean; onExport: () => void }) {
return (
<header className="history-header">
<div>
<h2 className="history-title">History</h2>
<p className="history-sub">Append-only event log · last {RANGE_DAYS} days</p>
</div>
<button
type="button"
className="history-csv"
data-testid="history-csv"
disabled={exporting}
aria-busy={exporting}
onClick={onExport}
>
<DownloadGlyph />
CSV
</button>
</header>
);
}
function StatRow({ stats }: { stats: HistoryStats }) {
const items = [
{ key: "on-time", label: "On time", value: stats.onTimePct === null ? "—" : `${stats.onTimePct}%` },
{ key: "completed", label: "Completed", value: String(stats.completed) },
{ key: "missed", label: "Missed", value: String(stats.missed) },
];
return (
<div className="history-stats">
{items.map((item) => (
<div key={item.key} className="history-stat" data-testid={`stat-${item.key}`}>
<div className={`history-stat-value history-stat-value--${item.key}`}>{item.value}</div>
<div className="history-stat-label">{item.label}</div>
</div>
))}
</div>
);
}
function EventRow({ row }: { row: HistoryRow }) {
return (
<li className="history-event" data-testid="history-row">
<span
className={`history-dot history-dot--${row.event_type}`}
data-testid="history-dot"
aria-hidden="true"
/>
<div className="history-event-text">
<div className="history-event-title">
{row.quest_title} · {row.child_name}
</div>
<div className="history-event-meta" data-testid="history-meta">
{rowMeta(row)}
</div>
</div>
<span className="history-event-time">{rowTime(row)}</span>
</li>
);
}
function FooterNote() {
return (
<div className="history-note" data-testid="history-footer">
<span className="history-note-glyph">
<LockGlyph />
</span>
<span>{FOOTER_NOTE}</span>
</div>
);
}
export default function HistoryTab({ today = localTodayIso() }: { today?: string }) {
const [filter, setFilter] = useState<HistoryFilter>("all");
const [state, setState] = useState<LoadState>({ kind: "loading" });
const [attempt, setAttempt] = useState(0);
const [exporting, setExporting] = useState(false);
const [exportError, setExportError] = useState<string | null>(null);
const exportingRef = useRef(false);
const start = shiftIso(today, -(RANGE_DAYS - 1));
const key = `${filter}|${start}|${today}`;
// A quest transition is a new history row (or changes a derived missed row);
// a day-complete adds none. The refetch keeps the active filter and range.
useTransitions((event: TransitionEvent) => {
if (event.type === "nestquest_child_day_complete") return;
setAttempt((n) => n + 1);
});
/** Download the CSV for the active filter over the displayed range. */
async function exportCsv() {
if (exportingRef.current) return;
exportingRef.current = true;
setExporting(true);
setExportError(null);
try {
const { blob, filename } = await exportHistoryCsv(filter, start, today);
offerDownload(blob, filename);
} catch (error: unknown) {
setExportError(
error instanceof ApiForbiddenError
? error.message
: "The CSV export failed. Check your connection and try again.",
);
} finally {
exportingRef.current = false;
setExporting(false);
}
}
useEffect(() => {
let cancelled = false;
// Rows already loaded for this (filter, range) stay on screen while they
// refresh; any other rows give way to the loading state.
const isCurrent = (prev: LoadState) => prev.kind === "ready" && prev.key === key;
setState((prev) => (isCurrent(prev) ? prev : { kind: "loading" }));
loadHistory(filter, start, today)
.then((data) => {
if (!cancelled) setState({ kind: "ready", data, key });
})
.catch((error: unknown) => {
if (cancelled) return;
const message =
error instanceof ApiForbiddenError
? error.message
: "The history could not be loaded. Check your connection and try again.";
// A failed refresh keeps the rows already on screen.
setState((prev) => (isCurrent(prev) ? prev : { kind: "error", message }));
});
return () => {
cancelled = true;
};
}, [filter, start, today, key, attempt]);
// Never render one filter's rows under another's chip, even for the render
// before the load effect runs.
const shown: LoadState = state.kind === "ready" && state.key !== key ? { kind: "loading" } : state;
let body;
if (shown.kind === "loading") {
body = (
<div className="history-status" role="status" data-testid="history-loading">
Loading history…
</div>
);
} else if (shown.kind === "error") {
body = (
<div className="history-status history-status--error" role="alert" data-testid="history-error">
<p>{shown.message}</p>
<button type="button" className="history-retry" onClick={() => setAttempt((n) => n + 1)}>
Try again
</button>
</div>
);
} else {
const groups = groupByDay(shown.data.rows);
body =
groups.length > 0 ? (
groups.map((group) => (
<section key={group.day} className="history-day" data-testid={`day-${group.day}`}>
<h3 className="history-section-label">{dayLabel(group.day, today)}</h3>
<ul className="history-card history-list">
{group.rows.map((row, index) => (
<EventRow key={`${row.instance_id}-${row.event_type}-${row.occurred_at ?? ""}-${index}`} row={row} />
))}
</ul>
</section>
))
) : (
<div className="history-card history-empty">No events in the last {RANGE_DAYS} days.</div>
);
}
return (
<div className="history-screen">
<ScreenHeader exporting={exporting} onExport={() => void exportCsv()} />
<div
className="history-scroll"
data-testid="history-scroll"
style={{ paddingBottom: SCROLL_BOTTOM_PADDING }}
>
{exportError !== null ? (
<div className="history-export-error" role="alert" data-testid="history-export-error">
<span>{exportError}</span>
<button type="button" className="history-export-dismiss" onClick={() => setExportError(null)}>
Dismiss
</button>
</div>
) : null}
{shown.kind === "ready" ? <StatRow stats={shown.data.stats} /> : null}
<div className="history-chips" role="group" aria-label="Filter events">
{FILTERS.map((item) => (
<button
key={item.id}
type="button"
className={item.id === filter ? "history-chip history-chip--active" : "history-chip"}
aria-pressed={item.id === filter}
onClick={() => setFilter(item.id)}
>
{item.label}
</button>
))}
</div>
{body}
<FooterNote />
</div>
</div>
);
}