refactor(web): reduz a complexidade do DownloadItem e adiciona testes com vitest
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import { describe, expect, it } from "vitest";
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import { renderToStaticMarkup } from "react-dom/server";
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import { DownloadItem, type DownloadItemData } from "./DownloadItem";
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const base: DownloadItemData = {
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id: "t1",
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sessionId: "s1",
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url: "https://example.com/file.zip",
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filename: "file.zip",
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status: "downloading",
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progress: 40,
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totalBytes: 10 * 1024 * 1024,
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receivedBytes: 4 * 1024 * 1024,
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speed: 2 * 1024 * 1024,
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createdAt: 0,
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};
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const render = (patch: Partial<DownloadItemData> = {}) =>
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renderToStaticMarkup(<DownloadItem item={{ ...base, ...patch }} />);
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describe("DownloadItem", () => {
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describe("em andamento (caminho principal)", () => {
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const html = render();
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it("mostra status, bytes, velocidade e porcentagem", () => {
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expect(html).toContain("downloading");
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expect(html).toContain("4.0 MB");
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expect(html).toContain("10.0 MB");
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expect(html).toContain("2.00 MB/s");
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expect(html).toContain("40%");
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});
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it("usa o spinner e não mostra botão nem erro", () => {
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expect(html).toContain("animate-spin");
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expect(html).not.toContain("Save to Disk");
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expect(html).not.toContain("Ready for download");
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});
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});
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describe("status queued", () => {
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it("mostra a mensagem de fila e o ícone pulsante", () => {
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const html = render({ status: "queued" });
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expect(html).toContain("Queued on server...");
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expect(html).toContain("animate-pulse");
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expect(html).not.toContain("animate-spin");
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});
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});
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describe("status completed", () => {
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const html = render({ status: "completed", progress: 100 });
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it("mostra o botão de salvar e o tamanho final", () => {
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expect(html).toContain("Save to Disk");
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expect(html).toContain("Ready for download (10.0 MB)");
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});
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it("esconde a seção de progresso", () => {
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expect(html).not.toContain("MB/s");
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expect(html).not.toContain("100%");
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});
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});
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describe("status error", () => {
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it("mostra a mensagem de erro da task", () => {
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const html = render({ status: "error", error: "HTTP Error 404" });
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expect(html).toContain("HTTP Error 404");
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expect(html).not.toContain("Save to Disk");
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expect(html).not.toContain("MB/s");
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});
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it("usa a mensagem padrão sem detalhe de erro", () => {
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expect(render({ status: "error" })).toContain("Unknown error occurred");
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});
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});
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describe("título", () => {
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it("usa o nome do arquivo", () => {
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expect(render()).toContain('title="file.zip"');
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});
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it("cai para a URL quando não há nome do arquivo", () => {
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expect(render({ filename: "" })).toContain(
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'title="https://example.com/file.zip"'
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);
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});
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});
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describe("valores zerados durante o download", () => {
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it("tamanho total desconhecido mostra ??", () => {
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expect(render({ totalBytes: 0 })).toContain("??");
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});
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it("sem velocidade mostra 0 B/s", () => {
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expect(render({ speed: 0 })).toContain("0 B/s");
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});
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it("sem progresso mostra 0%", () => {
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expect(render({ progress: 0 })).toContain(">0%<");
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});
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it("sem bytes recebidos mostra hífen", () => {
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expect(render({ receivedBytes: 0 })).toContain("- / 10.0 MB");
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});
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it("arredonda a porcentagem", () => {
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expect(render({ progress: 40.6 })).toContain("41%");
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});
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});
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});
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@@ -1,3 +1,4 @@
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import type { ReactNode } from "react";
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import {
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FileCheck,
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FileWarning,
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@@ -34,59 +35,91 @@ interface DownloadItemProps {
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item: DownloadItemData;
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}
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const ICON_BOX = "flex h-10 w-10 items-center justify-center rounded-full";
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const STATUS_ICON: Record<DownloadStatus, { box: string; icon: ReactNode }> = {
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completed: { box: "bg-green-500/10 text-green-500", icon: <FileCheck className="h-5 w-5" /> },
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error: { box: "bg-destructive/10 text-destructive", icon: <FileWarning className="h-5 w-5" /> },
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queued: {
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box: "bg-secondary text-secondary-foreground",
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icon: <Server className="h-5 w-5 animate-pulse" />,
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},
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downloading: { box: "bg-primary/10 text-primary", icon: <Loader2 className="h-5 w-5 animate-spin" /> },
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};
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function StatusIcon({ status }: { status: DownloadStatus }) {
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const { box, icon } = STATUS_ICON[status];
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return <div className={`${ICON_BOX} ${box}`}>{icon}</div>;
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}
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function ProgressSection({ item }: { item: DownloadItemData }) {
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const total = item.totalBytes ? formatBytes(item.totalBytes) : "??";
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return (
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<div className="space-y-2 pt-2">
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<div className="flex justify-between text-xs text-muted-foreground">
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<span>{item.status === "queued" ? "Queued on server..." : item.status}</span>
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<span>{formatBytes(item.receivedBytes || 0)} / {total}</span>
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</div>
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<Progress value={item.progress || 0} className="h-1.5" />
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<div className="flex justify-between text-xs text-muted-foreground">
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<span>{item.speed ? formatSpeed(item.speed) : "0 B/s"}</span>
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<span>{item.progress ? `${Math.round(item.progress)}%` : "0%"}</span>
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</div>
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</div>
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);
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}
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function StatusDetails({ item }: { item: DownloadItemData }) {
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if (item.status === "completed") {
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return (
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<div className="pt-2 flex items-center gap-2 text-xs text-green-500">
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<FileCheck className="w-3 h-3" />
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<span>Ready for download ({formatBytes(item.totalBytes)})</span>
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</div>
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);
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}
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if (item.status === "error") {
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return (
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<div className="text-sm text-destructive pt-1">
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{item.error || "Unknown error occurred"}
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</div>
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);
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}
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return <ProgressSection item={item} />;
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}
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async function saveToDisk(item: DownloadItemData) {
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try {
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const sessionId = localStorage.getItem("downloader_session_id") || "";
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const res = await fetch(`${API_URL}/api/download/${item.id}`, {
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headers: { "x-session-id": sessionId }
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});
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if (!res.ok) throw new Error("Download failed");
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const blob = await res.blob();
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const url = window.URL.createObjectURL(blob);
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const a = document.createElement("a");
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a.href = url;
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a.download = item.filename;
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document.body.appendChild(a);
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a.click();
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window.URL.revokeObjectURL(url);
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document.body.removeChild(a);
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} catch {
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alert("Failed to download file");
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}
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}
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export function DownloadItem({ item }: DownloadItemProps) {
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const isCompleted = item.status === "completed";
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const isError = item.status === "error";
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const isQueued = item.status === "queued";
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const handleDownloadFile = () => {
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const download = async () => {
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try {
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const sessionId = localStorage.getItem("downloader_session_id") || "";
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const res = await fetch(`${API_URL}/api/download/${item.id}`, {
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headers: { "x-session-id": sessionId }
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});
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if (!res.ok) throw new Error("Download failed");
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const blob = await res.blob();
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const url = window.URL.createObjectURL(blob);
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const a = document.createElement("a");
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a.href = url;
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a.download = item.filename;
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document.body.appendChild(a);
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a.click();
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window.URL.revokeObjectURL(url);
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document.body.removeChild(a);
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} catch {
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alert("Failed to download file");
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}
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};
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download();
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};
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return (
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<Card className="overflow-hidden transition-all hover:bg-muted/50">
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<CardContent className="p-4">
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<div className="flex items-start gap-4">
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<div className="mt-1">
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{isCompleted ? (
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<div className="flex h-10 w-10 items-center justify-center rounded-full bg-green-500/10 text-green-500">
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<FileCheck className="h-5 w-5" />
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</div>
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) : isError ? (
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<div className="flex h-10 w-10 items-center justify-center rounded-full bg-destructive/10 text-destructive">
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<FileWarning className="h-5 w-5" />
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</div>
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) : isQueued ? (
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<div className="flex h-10 w-10 items-center justify-center rounded-full bg-secondary text-secondary-foreground">
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<Server className="h-5 w-5 animate-pulse" />
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</div>
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) : (
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<div className="flex h-10 w-10 items-center justify-center rounded-full bg-primary/10 text-primary">
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<Loader2 className="h-5 w-5 animate-spin" />
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</div>
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)}
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<StatusIcon status={item.status} />
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</div>
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<div className="flex-1 space-y-1 min-w-0">
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@@ -99,41 +132,15 @@ export function DownloadItem({ item }: DownloadItemProps) {
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{item.url}
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</p>
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</div>
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{isCompleted && (
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<Button size="sm" onClick={handleDownloadFile} className="shrink-0 gap-2">
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{item.status === "completed" && (
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<Button size="sm" onClick={() => saveToDisk(item)} className="shrink-0 gap-2">
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<HardDrive className="w-4 h-4" />
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Save to Disk
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</Button>
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)}
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</div>
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{/* Progress Section */}
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{!isCompleted && !isError && (
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<div className="space-y-2 pt-2">
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<div className="flex justify-between text-xs text-muted-foreground">
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<span>{isQueued ? "Queued on server..." : item.status}</span>
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<span>{formatBytes(item.receivedBytes || 0)} / {item.totalBytes ? formatBytes(item.totalBytes) : "??"}</span>
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</div>
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<Progress value={item.progress || 0} className="h-1.5" />
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<div className="flex justify-between text-xs text-muted-foreground">
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<span>{item.speed ? formatSpeed(item.speed) : "0 B/s"}</span>
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<span>{item.progress ? `${Math.round(item.progress)}%` : "0%"}</span>
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</div>
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</div>
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)}
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{isCompleted && (
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<div className="pt-2 flex items-center gap-2 text-xs text-green-500">
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<FileCheck className="w-3 h-3" />
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<span>Ready for download ({formatBytes(item.totalBytes)})</span>
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</div>
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)}
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{isError && (
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<div className="text-sm text-destructive pt-1">
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{item.error || "Unknown error occurred"}
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</div>
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)}
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<StatusDetails item={item} />
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</div>
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</div>
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</CardContent>
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