Run classification previews in the background with live progress
The preview endpoint held one HTTP request open while classifying serially at three-second pacing, so any real range meant minutes of a grayed-out button and per-row errors were invisible until the loop ended. Analyse now starts a single background run against its own snapshot; a progress endpoint reports analysed counts, proposed changes and errors as they happen, and the page polls it with a progress bar, pace-based estimate and a Stop button. Navigating away no longer orphans the run: the page re-attaches to it on return. A run that has produced no successful proposal and fails three times in a row with the identical error stops early and reports that error, so a wrong key or unsupported model surfaces in seconds instead of repeating across the whole paced range. Also normalize a null settings.private_names, which crashed the whole UI on a workspace that had never saved preferences.
This commit is contained in:
Lars Nolden
+174
-53
@@ -1,6 +1,12 @@
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import { useState } from "react";
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import { useEffect, useRef, useState } from "react";
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import { Sparkles, ShieldCheck, Check, X, ArrowRight } from "lucide-react";
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import type { Dataset, Enrichment, Preview, State } from "./api";
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import type {
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Dataset,
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Enrichment,
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Preview,
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PreviewProgress,
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State,
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} from "./api";
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import { categoryPath, request } from "./api";
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import { DateField, Empty, ErrorMessage, Field, Modal } from "./ui";
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export function Classification({
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@@ -24,17 +30,96 @@ export function Classification({
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const [busy, setBusy] = useState(false);
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const [error, setError] = useState("");
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const [confirm, setConfirm] = useState(false);
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const cancel = async () => {
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if (!preview) return;
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const [running, setRunning] = useState<PreviewProgress | null>(null);
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const runStart = useRef({ time: 0, analysed: 0 });
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const finalize = (result: Preview) => {
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result.changes ??= [];
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result.errors ??= [];
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result.new_merchants ??= [];
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for (const change of result.changes) {
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change.before.tag_ids ??= [];
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change.after.tag_ids ??= [];
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}
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const confidenceRank: Record<string, number> = {
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low: 0,
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medium: 1,
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high: 2,
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};
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result.changes.sort(
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(a, b) =>
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(confidenceRank[a.after.classification.confidence || "low"] ?? 0) -
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(confidenceRank[b.after.classification.confidence || "low"] ?? 0),
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);
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setPreview(result);
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setSelected(
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result.changes
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.filter((change) => change.after.classification.confidence !== "low")
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.map((change) => change.id),
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);
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};
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// A run keeps going on the server while this page is closed; re-attach to
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// it on mount instead of presenting a fresh, contradictory setup form.
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useEffect(() => {
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let stale = false;
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(async () => {
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try {
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const p = await request<PreviewProgress>("/api/reclassify/progress", {
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id: "",
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});
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if (stale) return;
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if (!p.done) {
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runStart.current = { time: Date.now(), analysed: p.analysed };
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setRunning(p);
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} else if (
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!p.error &&
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p.preview &&
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p.preview.revision === state.revision
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) {
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finalize(p.preview);
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}
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} catch {
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// No run to re-attach to.
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}
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})();
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return () => {
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stale = true;
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};
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, []);
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useEffect(() => {
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if (!running || running.done) return;
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const timer = setTimeout(async () => {
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try {
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const p = await request<PreviewProgress>("/api/reclassify/progress", {
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id: running.id,
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});
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p.errors ??= [];
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if (!p.done) {
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setRunning(p);
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return;
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}
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setRunning(null);
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if (p.error) setError(p.error);
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else if (p.preview) finalize(p.preview);
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} catch (err) {
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setRunning(null);
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setError(err instanceof Error ? err.message : String(err));
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}
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}, 1200);
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return () => clearTimeout(timer);
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// eslint-disable-next-line react-hooks/exhaustive-deps
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}, [running]);
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const cancel = async (id: string) => {
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setBusy(true);
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setError("");
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try {
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const response = await request<{ ok: boolean }>(
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"/api/reclassify/cancel",
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{ id: preview.id },
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{ id },
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);
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if (!response.ok)
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throw new Error("The server did not confirm cancellation.");
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setRunning(null);
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setPreview(null);
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setSelected([]);
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} catch (err) {
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@@ -77,7 +162,65 @@ export function Classification({
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</p>
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</div>
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</div>
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{!preview ? (
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{running ? (
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<section className="panel">
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<div className="panel-heading">
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<div>
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<h3>Classifying transactions…</h3>
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<p>
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{running.analysed} of {running.total} analysed ·{" "}
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{running.changes} proposed changes · {running.unchanged}{" "}
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unchanged · {running.errors.length} errors
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</p>
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</div>
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</div>
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<div className="form-body">
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<div
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className="progress-track"
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role="progressbar"
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aria-valuemin={0}
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aria-valuemax={running.total}
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aria-valuenow={running.analysed}
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>
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<div
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className="progress-fill"
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style={{
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width: running.total
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? `${Math.round((running.analysed / running.total) * 100)}%`
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: "100%",
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}}
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/>
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</div>
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<p role="status" className="muted">
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Provider requests are spaced several seconds apart to respect rate
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limits
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{remainingEstimate(running, runStart.current)}. You can leave this
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page; the preview keeps building and will be here when you return.
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</p>
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{running.errors.length > 0 && (
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<div className="alert error">
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<div>
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<strong>
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{running.errors.length} transaction
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{running.errors.length === 1 ? "" : "s"} failed so far
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</strong>
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<p>{running.errors[running.errors.length - 1].error}</p>
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</div>
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</div>
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)}
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<div className="form-actions">
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<button
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className="button secondary"
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disabled={busy}
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onClick={() => cancel(running.id)}
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>
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<X size={16} />
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Stop
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</button>
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</div>
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</div>
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</section>
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) : !preview ? (
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<section className="panel classification-setup">
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<div className="panel-heading">
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<div>
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@@ -101,7 +244,7 @@ export function Classification({
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setBusy(true);
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setError("");
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try {
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const result = await request<Preview>(
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const start = await request<PreviewProgress>(
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"/api/reclassify/preview",
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{
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revision: state.revision,
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@@ -111,46 +254,13 @@ export function Classification({
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fields,
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},
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);
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if (
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!result.id ||
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!result.revision ||
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!("changes" in result) ||
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!("errors" in result) ||
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!("new_merchants" in result)
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)
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if (!start.id)
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throw new Error(
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"The server returned an incompatible preview.",
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"The server returned an incompatible preview run.",
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);
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result.changes ??= [];
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result.errors ??= [];
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result.new_merchants ??= [];
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for (const change of result.changes) {
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change.before.tag_ids ??= [];
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change.after.tag_ids ??= [];
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}
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const confidenceRank: Record<string, number> = {
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low: 0,
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medium: 1,
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high: 2,
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};
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result.changes.sort(
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(a, b) =>
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(confidenceRank[
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a.after.classification.confidence || "low"
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] ?? 0) -
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(confidenceRank[
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b.after.classification.confidence || "low"
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] ?? 0),
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);
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setPreview(result);
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setSelected(
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result.changes
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.filter(
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(change) =>
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change.after.classification.confidence !== "low",
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)
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.map((change) => change.id),
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);
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start.errors ??= [];
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runStart.current = { time: Date.now(), analysed: 0 };
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setRunning(start);
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} catch (err) {
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setError(err instanceof Error ? err.message : String(err));
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} finally {
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@@ -223,14 +333,8 @@ export function Classification({
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}
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>
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<Sparkles size={17} />
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{busy ? "Classifying transactions…" : "Generate preview"}
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{busy ? "Starting…" : "Generate preview"}
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</button>
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{busy && (
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<p role="status" className="muted">
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This can take a while for a large date range. Keep this page
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open.
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</p>
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)}
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{!state.data.transactions.length && (
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<p className="muted">
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Import transactions from Accounts before generating a preview.
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@@ -338,7 +442,7 @@ export function Classification({
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<button
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className="button secondary"
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disabled={busy}
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onClick={cancel}
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onClick={() => cancel(preview.id)}
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>
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<X size={16} />
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{busy ? "Working…" : "Cancel preview"}
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@@ -474,3 +578,20 @@ function EnrichmentView({
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</div>
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);
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}
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// remainingEstimate projects the finish time from the pace observed since
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// this page attached to the run; the server paces provider requests, so the
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// first sample is meaningless and re-attaching mid-run must not count work
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// done before it.
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function remainingEstimate(
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p: PreviewProgress,
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start: { time: number; analysed: number },
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): string {
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const sampled = p.analysed - start.analysed;
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const remaining = p.total - p.analysed;
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if (remaining <= 0 || sampled < 2 || !start.time) return "";
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const seconds = Math.round(
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((Date.now() - start.time) / sampled / 1000) * remaining,
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);
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if (seconds < 90) return ` — roughly ${seconds} seconds remaining`;
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return ` — roughly ${Math.round(seconds / 60)} minutes remaining`;
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}
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