a2a-source-edit: write frontend/src/App.jsx
This commit is contained in:
a2a-cloud
@@ -1,68 +1,161 @@
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import { useEffect, useMemo, useState } from "react";
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import {
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callSkill,
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loadAgentConfig,
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loadSession,
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sampleArgs,
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signInUrl,
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} from "./a2a.js";
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import { callSkill, loadAgentConfig, loadSession, signInUrl } from "./a2a.js";
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const MAX_UPLOAD_BYTES = 64 * 1024;
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const MAX_UPLOAD_FILES = 2;
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const sampleQuotes = [
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{ vendor: "Acme Bearings", unit_price: 10.75, quantity: 500, delivery_days: 12, warranty_months: 12 },
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{ vendor: "Beta Industrial", unit_price: 9.1, quantity: 500, delivery_days: 8, warranty_months: 18 },
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];
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function blankQuote() {
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return { vendor: "", unit_price: 0, quantity: 1, delivery_days: 0, warranty_months: 0 };
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}
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export function App() {
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const [config, setConfig] = useState(null);
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const [session, setSession] = useState(null);
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const [selectedSkillName, setSelectedSkillName] = useState("");
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const [argsText, setArgsText] = useState("{}");
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const [comparisonId, setComparisonId] = useState("studio-quote-v1");
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const [quotes, setQuotes] = useState(sampleQuotes);
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const [weights, setWeights] = useState({ price: 50, delivery: 30, warranty: 20 });
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const [result, setResult] = useState(null);
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const [historyId, setHistoryId] = useState("studio-quote-v1");
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const [uploadMessage, setUploadMessage] = useState("");
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const [status, setStatus] = useState("Loading QuoteJudge Studio…");
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const [error, setError] = useState(null);
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const [running, setRunning] = useState(false);
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useEffect(() => {
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loadAgentConfig()
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.then((data) => {
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.then(async (data) => {
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setConfig(data);
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const firstSkill = data.skills?.[0];
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if (firstSkill) {
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setSelectedSkillName(firstSkill.name);
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setArgsText(JSON.stringify(sampleArgs(firstSkill), null, 2));
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setStatus("Ready to compare vendor quotes.");
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try {
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setSession(await loadSession(data));
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} catch {
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setSession({ authenticated: false });
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}
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return loadSession(data).catch(() => null);
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})
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.then((sessionData) => setSession(sessionData))
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.catch((err) => setError(err.message || String(err)));
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.catch((err) => {
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setError(err.message || String(err));
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setStatus("The app could not load its A2A runtime metadata.");
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});
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}, []);
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const selectedSkill = useMemo(
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() => config?.skills?.find((skill) => skill.name === selectedSkillName),
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[config, selectedSkillName],
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);
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const needsSignIn = Boolean(config?.auth?.invokeRequiresSession && session && !session.authenticated);
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const signInHref = useMemo(() => (config ? signInUrl(config) : null), [config]);
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const skills = useMemo(() => new Set((config?.skills || []).map((skill) => skill.name)), [config]);
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const needsSignIn = Boolean(
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config?.auth?.invokeRequiresSession && session && !session.authenticated,
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);
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const signInHref = useMemo(
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() => (config && needsSignIn ? signInUrl(config) : null),
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[config, needsSignIn],
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);
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function selectSkill(skill) {
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setSelectedSkillName(skill.name);
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setArgsText(JSON.stringify(sampleArgs(skill), null, 2));
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setResult(null);
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setError(null);
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function updateQuote(index, field, value) {
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setQuotes((items) => items.map((item, idx) => (idx === index ? { ...item, [field]: value } : item)));
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}
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async function runSkill(event) {
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function removeQuote(index) {
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setQuotes((items) => items.filter((_, idx) => idx !== index));
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}
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function validateForm() {
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if (!comparisonId.trim()) return "Comparison id is required.";
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if (quotes.length < 2) return "Add at least two vendor quotes.";
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if (weights.price + weights.delivery + weights.warranty <= 0) return "At least one weight must be greater than zero.";
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for (const quote of quotes) {
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if (!quote.vendor.trim()) return "Every quote needs a vendor name.";
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if (Number(quote.unit_price) <= 0 || Number(quote.quantity) <= 0) return "Unit price and quantity must be positive.";
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}
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return null;
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}
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async function compare(event) {
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event.preventDefault();
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if (!config || !selectedSkill) return;
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const problem = validateForm();
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if (problem) {
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setError(problem);
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return;
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}
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setRunning(true);
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setError(null);
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setResult(null);
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setStatus("Scoring quotes and saving the result…");
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try {
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const args = JSON.parse(argsText || "{}");
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const data = await callSkill(config, selectedSkill.name, args);
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const data = await callSkill(config, "compare_quotes", {
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comparison_id: comparisonId.trim(),
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quotes: quotes.map((quote) => ({
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vendor: quote.vendor.trim(),
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unit_price: Number(quote.unit_price),
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quantity: Number(quote.quantity),
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delivery_days: Number(quote.delivery_days),
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warranty_months: Number(quote.warranty_months),
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})),
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weights: {
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price: Number(weights.price),
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delivery: Number(weights.delivery),
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warranty: Number(weights.warranty),
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},
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});
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setResult(data);
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setHistoryId(comparisonId.trim());
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setStatus(data.ok ? `Recommended vendor: ${data.recommendation.vendor}` : data.message || "Validation failed.");
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} catch (err) {
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setError(err.message || String(err));
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setStatus("The comparison could not run.");
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} finally {
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setRunning(false);
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}
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}
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async function reopen() {
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setRunning(true);
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setError(null);
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setStatus("Reopening saved comparison…");
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try {
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const data = await callSkill(config, "get_comparison", { comparison_id: historyId.trim() });
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setResult(data);
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setStatus(data.ok ? `Reopened ${data.comparison_id}` : data.message || "No saved result found.");
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} catch (err) {
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setError(err.message || String(err));
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setStatus("The saved comparison could not be reopened.");
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} finally {
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setRunning(false);
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}
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}
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async function uploadFiles(event) {
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const files = Array.from(event.target.files || []);
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event.target.value = "";
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setUploadMessage("");
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if (!files.length) return;
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if (files.length > MAX_UPLOAD_FILES) {
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setError(`Select at most ${MAX_UPLOAD_FILES} files.`);
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return;
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}
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const documents = [];
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for (const file of files) {
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if (file.size > MAX_UPLOAD_BYTES) {
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setError(`${file.name} is ${file.size} bytes; maximum is ${MAX_UPLOAD_BYTES} bytes.`);
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return;
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}
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const data_base64 = await fileToBase64(file);
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documents.push({ filename: file.name, media_type: file.type || "text/plain", data_base64 });
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}
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setRunning(true);
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setError(null);
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setStatus("Parsing uploaded quote file…");
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try {
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const data = await callSkill(config, "upload_quotes", {
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comparison_id: comparisonId.trim(),
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documents,
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weights: {
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price: Number(weights.price),
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delivery: Number(weights.delivery),
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warranty: Number(weights.warranty),
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},
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});
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setResult(data);
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setUploadMessage(data.ok ? "Upload parsed and comparison saved." : data.message || "Upload validation failed.");
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setStatus(data.ok ? `Recommended vendor: ${data.recommendation.vendor}` : data.message || "Upload validation failed.");
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} catch (err) {
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setError(err.message || String(err));
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setStatus("Upload comparison failed.");
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} finally {
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setRunning(false);
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}
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@@ -71,88 +164,141 @@ export function App() {
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if (!config) {
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return (
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<main className="loading">
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<p>{error || "Loading A2A agent contract..."}</p>
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<p>{error || status}</p>
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</main>
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);
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}
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return (
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<main className="app-shell">
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<aside className="sidebar">
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<main className="studio-shell">
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<header className="hero">
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<div>
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<p className="eyebrow">A2A packed app</p>
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<h1>quote-judge-studio-v1</h1>
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<p className="agent-meta">
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{config.agent.name} v{config.agent.version}
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</p>
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<p className="eyebrow">QuoteJudge Studio</p>
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<h1>Compare vendor quotes with weighted evidence.</h1>
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<p className="lede">Paste or upload quotes, tune price/delivery/warranty weights, persist a receipt-backed decision, then reopen it later.</p>
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</div>
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<nav className="skill-list" aria-label="Agent skills">
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{(config.skills || []).map((skill) => (
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<button
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className={skill.name === selectedSkillName ? "skill active" : "skill"}
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key={skill.name}
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onClick={() => selectSkill(skill)}
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type="button"
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>
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<span>{skill.name}</span>
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<small>{skill.stream ? "streaming" : "request"}</small>
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</button>
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))}
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</nav>
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<div className="session">
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<span>{session?.authenticated ? "Signed in" : needsSignIn ? "Signed out" : "Local session"}</span>
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<strong>{session?.user?.email || session?.org?.slug || "dev@example.local"}</strong>
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{/* Skills that spend the caller's LLM budget need a signed-in
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visitor even when the page itself is public, so offer the way in
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rather than failing at the first click. */}
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{needsSignIn && signInHref ? (
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<a className="signin" href={signInHref}>Sign in to run</a>
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) : null}
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<div className="session-card">
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<span>{session?.authenticated ? "Signed in" : "Signed out"}</span>
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<strong>{session?.user?.email || session?.org?.slug || "A2A Cloud session"}</strong>
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{needsSignIn && signInHref ? <a href={signInHref}>Sign in to run</a> : null}
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</div>
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</aside>
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<section className="workbench">
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<header className="toolbar">
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<div>
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<p className="eyebrow">Skill runner</p>
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<h2>{selectedSkill?.name || "No skills found"}</h2>
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</div>
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<a href={config.docs.base} rel="noreferrer" target="_blank">
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Docs
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</a>
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</header>
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{selectedSkill ? (
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<form className="runner" onSubmit={runSkill}>
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<label>
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Arguments JSON
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<textarea
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spellCheck="false"
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value={argsText}
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onChange={(event) => setArgsText(event.target.value)}
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/>
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</label>
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<button disabled={running} type="submit">
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{running ? "Running..." : `Run ${selectedSkill.name}`}
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</button>
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</form>
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) : (
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<p className="empty">Add a `@a2a.tool` to your agent to make it callable here.</p>
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)}
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<section className="panels">
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<div className="panel">
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<h3>Input schema</h3>
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<pre>{JSON.stringify(selectedSkill?.input_schema || {}, null, 2)}</pre>
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</div>
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<div className="panel">
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<h3>Result</h3>
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<pre>{error || JSON.stringify(result, null, 2) || "No run yet."}</pre>
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</div>
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<section className="notice" aria-live="polite">
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<span>{status}</span>
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{error ? <strong>{error}</strong> : null}
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</section>
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<section className="grid">
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<form className="card workflow" onSubmit={compare}>
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<div className="section-heading">
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<div>
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<p className="eyebrow">Workflow</p>
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<h2>Quote comparison</h2>
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</div>
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<button type="button" onClick={() => setQuotes(sampleQuotes)}>Load fixture</button>
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</div>
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<label>
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Comparison ID
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<input value={comparisonId} onChange={(event) => setComparisonId(event.target.value)} placeholder="studio-quote-v1" />
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</label>
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<div className="weights" aria-label="Scoring weights">
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{Object.entries(weights).map(([key, value]) => (
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<label key={key}>
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{key}
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<input type="number" min="0" max="1000" value={value} onChange={(event) => setWeights((items) => ({ ...items, [key]: Number(event.target.value) }))} />
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</label>
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))}
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</div>
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<div className="quotes">
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{quotes.map((quote, index) => (
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<fieldset key={index}>
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<legend>Quote {index + 1}</legend>
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<label>Vendor<input value={quote.vendor} onChange={(event) => updateQuote(index, "vendor", event.target.value)} /></label>
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<label>Unit price<input type="number" step="0.01" min="0" value={quote.unit_price} onChange={(event) => updateQuote(index, "unit_price", event.target.value)} /></label>
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<label>Quantity<input type="number" min="1" value={quote.quantity} onChange={(event) => updateQuote(index, "quantity", event.target.value)} /></label>
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<label>Delivery days<input type="number" min="0" value={quote.delivery_days} onChange={(event) => updateQuote(index, "delivery_days", event.target.value)} /></label>
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<label>Warranty months<input type="number" min="0" value={quote.warranty_months} onChange={(event) => updateQuote(index, "warranty_months", event.target.value)} /></label>
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<button type="button" className="subtle" onClick={() => removeQuote(index)} disabled={quotes.length <= 1}>Remove</button>
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</fieldset>
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))}
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</div>
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<div className="button-row">
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<button type="button" onClick={() => setQuotes((items) => [...items, blankQuote()])}>Add quote</button>
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<button type="submit" disabled={running || needsSignIn || !skills.has("compare_quotes")}>{running ? "Working…" : "Compare & save"}</button>
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</div>
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<label className="upload-box">
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Upload JSON or CSV quotes (bounded to 64 KB each)
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<input type="file" accept=".json,.csv,text/csv,application/json,text/plain" multiple onChange={uploadFiles} disabled={running || needsSignIn || !skills.has("upload_quotes")} />
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{uploadMessage ? <small>{uploadMessage}</small> : null}
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</label>
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</form>
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<aside className="card result-card">
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<div className="section-heading">
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<div>
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<p className="eyebrow">Persistence</p>
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<h2>Saved result</h2>
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</div>
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</div>
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<div className="reopen-row">
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<input value={historyId} onChange={(event) => setHistoryId(event.target.value)} aria-label="Comparison id to reopen" />
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<button type="button" onClick={reopen} disabled={running || needsSignIn || !skills.has("get_comparison")}>Reopen</button>
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</div>
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{result?.ok ? <Recommendation result={result} /> : <EmptyOrError result={result} />}
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</aside>
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</section>
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</main>
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);
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}
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function Recommendation({ result }) {
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return (
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<div className="recommendation">
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<p className="eyebrow">Recommendation</p>
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<h3>{result.recommendation.vendor}</h3>
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<p>{result.recommendation.reason}</p>
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<dl>
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<div><dt>Score</dt><dd>{result.recommendation.score}</dd></div>
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<div><dt>Quotes</dt><dd>{result.quote_count}</dd></div>
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<div><dt>Receipt</dt><dd>{result.receipt?.receipt_id || "persisted by gateway"}</dd></div>
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</dl>
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<table>
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<thead><tr><th>Vendor</th><th>Total</th><th>Days</th><th>Warranty</th><th>Score</th></tr></thead>
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<tbody>
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{result.quotes?.map((quote) => (
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<tr key={quote.vendor}>
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<td>{quote.vendor}</td>
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<td>{quote.total_price}</td>
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<td>{quote.delivery_days}</td>
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<td>{quote.warranty_months}</td>
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<td>{quote.scores.weighted_total}</td>
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</tr>
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))}
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</tbody>
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</table>
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</div>
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);
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}
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function EmptyOrError({ result }) {
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if (result && result.ok === false) {
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return <div className="empty-state"><h3>{result.code}</h3><p>{result.message}</p><small>{result.action}</small></div>;
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}
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return <div className="empty-state"><h3>No comparison opened yet.</h3><p>Run the success fixture or reopen a saved comparison to see ranked vendors and receipt details.</p></div>;
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}
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function fileToBase64(file) {
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return new Promise((resolve, reject) => {
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const reader = new FileReader();
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reader.onload = () => resolve(String(reader.result || "").split(",").pop() || "");
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reader.onerror = () => reject(reader.error || new Error("file read failed"));
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reader.readAsDataURL(file);
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});
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}
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