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feat(ui): add real-time download progress to instance creation flow #122

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feat(ui): add real-time download progress to instance creation flow #122

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186 changes: 142 additions & 44 deletions packages/ui/src/components/download-monitor.tsx
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Original file line number Diff line number Diff line change
@@ -1,62 +1,160 @@
import { X } from "lucide-react";
import { useState } from "react";
import { CheckCircle, Download, Loader2, Package, XCircle } from "lucide-react";
import { useDownloadStore } from "@/stores/download-store";

export function DownloadMonitor() {
const [isVisible, setIsVisible] = useState(true);
function formatBytes(bytes: number): string {
if (bytes === 0) return "0 B";
const units = ["B", "KB", "MB", "GB"];
const i = Math.floor(Math.log(bytes) / Math.log(1024));
const value = bytes / 1024 ** i;
return `${value.toFixed(value < 10 ? 1 : 0)} ${units[i]}`;
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}

function shortenFileName(path: string): string {
const parts = path.replace(/\\/g, "/").split("/");
return parts[parts.length - 1] || path;
}

/**
* Inline progress display for use inside dialogs or pages.
* Reads from the global download store.
*/
export function DownloadProgress() {
const {
phase,
totalFiles,
completedFiles,
currentFile,
currentFileStatus,
currentFileDownloaded,
currentFileTotal,
totalDownloadedBytes,
errorMessage,
phaseLabel,
} = useDownloadStore();

if (phase === "idle") return null;

if (!isVisible) return null;
const overallPercent =
totalFiles > 0 ? Math.round((completedFiles / totalFiles) * 100) : 0;

const filePercent =
currentFileTotal > 0
? Math.round((currentFileDownloaded / currentFileTotal) * 100)
: 0;
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return (
<div className="bg-zinc-900/80 backdrop-blur-md border border-zinc-700 rounded-lg shadow-2xl overflow-hidden">
{/* Header */}
<div className="flex items-center justify-between px-4 py-3 bg-zinc-800/50 border-b border-zinc-700">
<div className="flex items-center gap-2">
<div className="w-2 h-2 bg-emerald-500 rounded-full animate-pulse"></div>
<span className="text-sm font-medium text-white">Downloads</span>
</div>
<button
type="button"
onClick={() => setIsVisible(false)}
className="text-zinc-400 hover:text-white transition-colors p-1"
>
<X size={16} />
</button>
<div className="space-y-4 min-w-0 overflow-hidden tabular-nums">
{/* Phase header */}
<div className="flex items-center gap-2 min-w-0">
{phase === "preparing" && (
<Loader2 className="h-4 w-4 shrink-0 text-indigo-400 animate-spin" />
)}
{phase === "downloading" && (
<Download className="h-4 w-4 shrink-0 text-indigo-400 animate-pulse" />
)}
{phase === "finalizing" && (
<Loader2 className="h-4 w-4 shrink-0 text-indigo-400 animate-spin" />
)}
{phase === "installing-mod-loader" && (
<Package className="h-4 w-4 shrink-0 text-indigo-400 animate-pulse" />
)}
{phase === "completed" && (
<CheckCircle className="h-4 w-4 shrink-0 text-emerald-400" />
)}
{phase === "error" && (
<XCircle className="h-4 w-4 shrink-0 text-red-400" />
)}
<span className="text-sm font-medium truncate">{phaseLabel}</span>
</div>

{/* Content */}
<div className="p-4">
<div className="space-y-3">
{/* Download Item */}
{/* Preparing phase — no file counts yet */}
{phase === "preparing" && (
<div className="flex items-center gap-2 text-sm text-muted-foreground">
<Loader2 className="h-3 w-3 shrink-0 animate-spin" />
<span className="truncate">Resolving version and assets...</span>
</div>
)}

{/* Overall progress */}
{phase === "downloading" && totalFiles > 0 && (
<div className="space-y-2 min-w-0">
{/* Overall bar */}
<div className="space-y-1">
<div className="flex justify-between text-xs">
<span className="text-zinc-300">Minecraft 1.20.4</span>
<span className="text-zinc-400">65%</span>
<div className="flex justify-between text-xs text-muted-foreground">
<span>
Overall: {completedFiles} / {totalFiles} files
</span>
<span className="shrink-0 ml-2 w-10 text-right">
{overallPercent}%
</span>
</div>
<div className="h-1.5 bg-zinc-800 rounded-full overflow-hidden">
<div className="h-2 bg-secondary rounded-full overflow-hidden">
<div
className="h-full bg-emerald-500 rounded-full transition-all duration-300"
style={{ width: "65%" }}
></div>
className="h-full bg-indigo-500 rounded-full transition-all duration-300"
style={{ width: `${overallPercent}%` }}
/>
</div>
<div className="flex justify-between text-[10px] text-zinc-500">
<span>142 MB / 218 MB</span>
<span>2.1 MB/s • 36s remaining</span>
<div className="text-xs text-muted-foreground">
{formatBytes(totalDownloadedBytes)} downloaded
</div>
</div>

{/* Download Item */}
<div className="space-y-1">
<div className="flex justify-between text-xs">
<span className="text-zinc-300">Java 17</span>
<span className="text-zinc-400">100%</span>
</div>
<div className="h-1.5 bg-zinc-800 rounded-full overflow-hidden">
<div className="h-full bg-emerald-500 rounded-full"></div>
</div>
<div className="text-[10px] text-emerald-400">Completed</div>
{/* Current file — always reserve space to avoid layout shifts */}
<div className="min-h-[2.5rem] border-t border-border pt-2 min-w-0">
{currentFile && currentFileStatus !== "Finished" && (
<div className="space-y-1">
<div className="flex items-center gap-2 text-xs">
<span className="text-muted-foreground truncate w-0 grow">
{shortenFileName(currentFile)}
</span>
<span className="text-muted-foreground shrink-0 w-16 text-right">
{currentFileStatus === "Downloading"
? `${filePercent}%`
: currentFileStatus}
</span>
</div>
{currentFileStatus === "Downloading" &&
currentFileTotal > 0 && (
<div className="h-1 bg-secondary rounded-full overflow-hidden">
<div
className="h-full bg-indigo-400/60 rounded-full transition-all duration-150"
style={{ width: `${filePercent}%` }}
/>
</div>
)}
</div>
)}
</div>
</div>
</div>
)}

{/* Finalizing phase — downloads done, waiting for install to finish */}
{phase === "finalizing" && (
<div className="flex items-center gap-2 text-sm text-muted-foreground">
<Loader2 className="h-3 w-3 shrink-0 animate-spin" />
<span className="truncate">Verifying installation...</span>
</div>
)}

{/* Mod loader install phase */}
{phase === "installing-mod-loader" && (
<div className="flex items-center gap-2 text-sm text-muted-foreground min-w-0">
<Loader2 className="h-3 w-3 shrink-0 animate-spin" />
<span className="truncate">{phaseLabel}</span>
</div>
)}

{/* Error */}
{phase === "error" && errorMessage && (
<div className="text-sm text-red-400 break-words">{errorMessage}</div>
)}

{/* Completed */}
{phase === "completed" && (
<div className="text-sm text-emerald-400">
Successfully installed {totalFiles > 0 ? `${totalFiles} files` : ""}
</div>
)}
</div>
);
}
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