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shadow-gunbuilder-ai-proto/app/builder/[categoryId]/[partId]/page.tsx
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"use client";
import { useEffect, useMemo, useState } from "react";
import Link from "next/link";
import { useParams } from "next/navigation";
import { CATEGORIES } from "@/data/gunbuilderParts";
import type { CategoryId } from "@/types/gunbuilder";
import {
getRetailerOffers,
type RetailerOffer,
} from "./data";
type GunbuilderProductFromApi = {
id: string; // backend UUID string
name: string;
brand: string;
platform: string;
partRole: string;
price: number | null;
mainImageUrl: string | null;
buyUrl: string | null;
};
const API_BASE_URL =
process.env.NEXT_PUBLIC_API_BASE_URL ?? "http://localhost:8080";
export default function PartDetailPage() {
const params = useParams();
const categoryId = params.categoryId as CategoryId;
const partId = params.partId as string; // this is the UUID we passed in the link
const [product, setProduct] = useState<GunbuilderProductFromApi | null>(null);
const [loading, setLoading] = useState(true);
const [error, setError] = useState<string | null>(null);
const [offers, setOffers] = useState<RetailerOffer[]>([]);
const [offersLoading, setOffersLoading] = useState(true);
const [offersError, setOffersError] = useState<string | null>(null);
const category = useMemo(
() => CATEGORIES.find((c) => c.id === categoryId),
[categoryId],
);
// 1) Load product (same as before)
useEffect(() => {
if (!partId) return;
const controller = new AbortController();
async function fetchProduct() {
try {
setLoading(true);
setError(null);
// For now, pull the full AR-15 list and find by UUID.
// We can optimize with a dedicated /api/products/{uuid} later.
const url = `${API_BASE_URL}/api/products/gunbuilder?platform=AR-15`;
const res = await fetch(url, { signal: controller.signal });
if (!res.ok) {
throw new Error(`Failed to load product (${res.status})`);
}
const data: GunbuilderProductFromApi[] = await res.json();
const found = data.find((p) => p.id === partId) ?? null;
if (!found) {
setError("Product not found");
}
setProduct(found);
} catch (err: any) {
if (err.name === "AbortError") return;
setError(err.message ?? "Failed to load product");
} finally {
setLoading(false);
}
}
fetchProduct();
return () => controller.abort();
}, [partId]);
// 2) Load offers for this product from Ballistic backend
useEffect(() => {
if (!partId) return;
let cancelled = false;
async function fetchOffers() {
try {
setOffersLoading(true);
setOffersError(null);
const data = await getRetailerOffers(partId);
if (!cancelled) {
setOffers(data);
}
} catch (err: any) {
if (!cancelled) {
setOffersError(err.message ?? "Failed to load retailer offers");
}
} finally {
if (!cancelled) {
setOffersLoading(false);
}
}
}
fetchOffers();
return () => {
cancelled = true;
};
}, [partId]);
// Best price: prefer live offers, fall back to summary product.price
const bestPrice = useMemo(() => {
if (offers.length > 0) {
return offers[0].price;
}
return product?.price ?? null;
}, [offers, product]);
if (!category) {
return (
<main className="min-h-screen bg-black text-zinc-50">
<div className="mx-auto max-w-6xl px-4 py-6 lg:py-10">
<h1 className="text-2xl font-semibold mb-4">Category Not Found</h1>
<Link
href="/builder"
className="text-amber-300 hover:text-amber-200 underline"
>
Return to Builder
</Link>
</div>
</main>
);
}
return (
<main className="min-h-screen bg-black text-zinc-50">
<div className="mx-auto max-w-5xl px-4 py-6 lg:py-10">
{/* Breadcrumbs */}
<nav className="mb-4 text-xs text-zinc-500">
<Link
href="/builder"
className="hover:text-zinc-300 transition-colors"
>
Builder
</Link>
<span className="mx-1">/</span>
<Link
href={`/builder/${categoryId}`}
className="hover:text-zinc-300 transition-colors"
>
{category.name}
</Link>
{product && (
<>
<span className="mx-1">/</span>
<span className="text-zinc-300">{product.name}</span>
</>
)}
</nav>
{loading ? (
<p className="text-sm text-zinc-500">Loading product</p>
) : error || !product ? (
<div>
<h1 className="text-xl font-semibold mb-2">Product Unavailable</h1>
<p className="text-sm text-zinc-500 mb-4">
{error ?? "We couldnt find this product."}
</p>
<Link
href={`/builder/${categoryId}`}
className="text-amber-300 hover:text-amber-200 underline text-sm"
>
Back to {category.name} parts
</Link>
</div>
) : (
<>
<div className="grid gap-6 md:grid-cols-[minmax(0,2fr)_minmax(0,1.3fr)] items-start">
{/* Left: image + meta */}
<div className="space-y-4">
{product.mainImageUrl && (
<div className="overflow-hidden rounded-lg border border-zinc-800 bg-zinc-950">
{/* eslint-disable-next-line @next/next/no-img-element */}
<img
src={product.mainImageUrl}
alt={product.name}
className="w-full object-contain max-h-80 bg-zinc-950"
/>
</div>
)}
<div className="text-xs font-semibold tracking-[0.2em] uppercase text-zinc-500">
{product.brand}
</div>
<h1 className="text-2xl md:text-3xl font-semibold tracking-tight">
{product.name}
</h1>
<div className="grid grid-cols-2 gap-3 text-xs">
<p className="text-zinc-500">
Platform:{" "}
<span className="text-zinc-300">{product.platform}</span>
</p>
<p className="text-zinc-500">
Role:{" "}
<span className="text-zinc-300">{product.partRole}</span>
</p>
<p className="text-zinc-500">
Category:{" "}
<span className="text-zinc-300">{category.name}</span>
</p>
<p className="text-zinc-500">
Offers:{" "}
<span className="text-zinc-300">
{offers.length > 0
? `${offers.length} live offer${
offers.length === 1 ? "" : "s"
}`
: "No live offers yet"}
</span>
</p>
</div>
{/* Placeholder content until long-form fields are wired up */}
<section className="mt-4 space-y-3 text-sm text-zinc-300">
<h2 className="text-xs font-semibold tracking-[0.2em] uppercase text-zinc-500">
Product Overview
</h2>
<p className="text-zinc-400">
This is placeholder copy for the product overview. Once
the Ballistic backend exposes richer metadata (short
description, feature bullets, etc.), we&apos;ll swap this
text out and surface the real content here.
</p>
<p className="text-zinc-500 text-xs">
Use this section to highlight what makes this part worth
a slot in your build: materials, intended use
(duty/range/competition), and any standout features.
</p>
</section>
<section className="mt-4 rounded-lg border border-zinc-800 bg-zinc-950/70 p-3">
<h2 className="text-xs font-semibold tracking-[0.2em] uppercase text-zinc-500 mb-2">
Quick Specs (Placeholder)
</h2>
<dl className="grid grid-cols-2 gap-x-4 gap-y-2 text-xs text-zinc-400">
<div>
<dt className="text-zinc-500">Configuration</dt>
<dd className="text-zinc-200">
TBD (Stripped / Complete / Kit)
</dd>
</div>
<div>
<dt className="text-zinc-500">Caliber</dt>
<dd className="text-zinc-200">TBD from feed</dd>
</div>
<div>
<dt className="text-zinc-500">Finish</dt>
<dd className="text-zinc-200">TBD from merchant data</dd>
</div>
<div>
<dt className="text-zinc-500">Weight</dt>
<dd className="text-zinc-200">TBD (oz)</dd>
</div>
</dl>
<p className="mt-2 text-[11px] text-zinc-500">
Specs are placeholders for now. As we normalize more
structured attributes in the importer, this block will
auto-populate per product.
</p>
</section>
</div>
{/* Right: pricing + actions */}
<aside className="rounded-lg border border-zinc-800 bg-zinc-950/70 p-4 space-y-4">
<div>
<p className="text-xs uppercase tracking-[0.2em] text-zinc-500 mb-1">
Price
</p>
<p className="text-2xl font-semibold text-amber-300">
{bestPrice && bestPrice > 0
? `$${bestPrice.toFixed(2)}`
: "—"}
</p>
{!bestPrice && (
<p className="mt-1 text-xs text-zinc-500">
Pricing not available yet. Live pricing will appear once
offers are imported.
</p>
)}
{offers.length > 0 && (
<p className="mt-1 text-[11px] text-zinc-500">
Showing the best available price across all live
offers for this part.
</p>
)}
{offers.length > 1 && (
<p className="mt-1 text-[11px] text-zinc-500">
Price range across retailers:{" "}
<span className="text-zinc-300">
${Math.min(...offers.map(o => o.price)).toFixed(2)} ${Math.max(...offers.map(o => o.price)).toFixed(2)}
</span>
</p>
)}
</div>
{/* Offers list */}
<div className="space-y-2">
{offersLoading && (
<p className="text-xs text-zinc-500">Loading offers</p>
)}
{offersError && (
<p className="text-xs text-red-400">{offersError}</p>
)}
{!offersLoading && !offersError && offers.length > 0 && (
<div className="space-y-1">
{offers.map((offer) => (
<a
key={offer.id}
href={offer.affiliateUrl}
target="_blank"
rel="noreferrer"
className="flex items-center justify-between rounded-md border border-zinc-700 bg-zinc-900 px-3 py-1.5 text-xs hover:bg-zinc-800 transition-colors"
>
<span className="text-zinc-200">
{offer.retailerName}
</span>
<span className="font-semibold text-amber-300">
${offer.price.toFixed(2)}
</span>
</a>
))}
</div>
)}
{!offersLoading &&
!offersError &&
offers.length === 0 && (
<p className="text-xs text-zinc-500">
No live retailer offers yet. As feeds are imported,
merchants and pricing will show up here.
</p>
)}
</div>
<div className="space-y-2">
<Link
href={`/builder?select=${categoryId}:${product.id}`}
className="block w-full rounded-md bg-amber-400 text-black text-sm font-semibold text-center py-2.5 hover:bg-amber-300 transition-colors"
>
Add to Build
</Link>
{product.buyUrl ? (
<a
href={product.buyUrl}
target="_blank"
rel="noreferrer"
className="block w-full rounded-md border border-zinc-700 bg-zinc-900 text-xs font-medium text-zinc-200 text-center py-2 hover:bg-zinc-800 transition-colors"
>
View on Merchant Site
</a>
) : (
<button
type="button"
disabled
className="block w-full rounded-md border border-zinc-800 bg-zinc-900/60 text-xs font-medium text-zinc-500 text-center py-2 cursor-not-allowed"
>
External link coming soon
</button>
)}
</div>
</aside>
</div>
{/* Lower content: builder-focused helper copy (placeholder) */}
<section className="mt-10 grid gap-6 md:grid-cols-3 text-sm md:grid-cols-4">
<div className="space-y-2">
<h2 className="text-xs font-semibold tracking-[0.2em] uppercase text-zinc-500">
Why We Like This Part
</h2>
<p className="text-zinc-400">
Drop in a short blurb here about what makes this part
worth picking over similar options think reliability,
track record, and value for the money.
</p>
</div>
<div className="space-y-2">
<h2 className="text-xs font-semibold tracking-[0.2em] uppercase text-zinc-500">
Best For
</h2>
<p className="text-zinc-400">
Use this block to call out ideal use cases:{" "}
<span className="text-zinc-200">
duty rifle, home defense, range toy, competition, night
work
</span>
, etc.
</p>
</div>
<div className="space-y-2">
<h2 className="text-xs font-semibold tracking-[0.2em] uppercase text-zinc-500">
Builder Notes
</h2>
<p className="text-zinc-400">
Add any compatibility quirks or install tips here once
the compatibility engine is wired up gas system length,
buffer recommendations, known fitment notes, and more.
</p>
</div>
<div className="space-y-2">
<h2 className="text-xs font-semibold tracking-[0.2em] uppercase text-zinc-500">
Compatibility
</h2>
<div className="inline-flex items-center gap-2 rounded-md border border-amber-400/30 bg-amber-400/10 px-2 py-1 text-[11px] text-amber-300">
<span className="inline-block h-2 w-2 rounded-full bg-amber-300 animate-pulse"></span>
Compatibility engine coming online soon
</div>
<p className="text-zinc-500 text-xs">
Fitment checks, caliber validation, buffer/gas system logic, and platform rules will appear here once the engine is active.
</p>
</div>
</section>
</>
)}
</div>
</main>
);
}