Add samples page

Signed-off-by: Felipe Cardoso <felipe.cardoso@hotmail.it>

frontend/src/app/samples/page.tsx

@@ -0,0 +1,96 @@
+// src/app/samples/page.tsx
+"use client"
+
+import {useSamples} from '@/contexts/SamplesContext'
+import Image from 'next/image'
+import {useMemo} from 'react'
+
+interface ParsedSample {
+    filename: string
+    timestamp: number
+    batch: number
+    index: number
+    url: string
+    created_at: string
+}
+
+export default function SamplesPage() {
+    const {samples, isLoading, error} = useSamples()
+
+    const groupedSamples = useMemo(() => {
+        if (!samples?.length) return new Map()
+
+        const parsed: ParsedSample[] = samples.map(sample => {
+            console.debug('sample', sample)
+            const [timestamp, info] = sample.filename.split('__')
+            const [batch, index] = info.split('_')
+            return {
+                ...sample,
+                timestamp: parseInt(timestamp),
+                batch: parseInt(batch),
+                index: parseInt(index.replace('.jpg', '')),
+            }
+        })
+
+        // Group by batch
+        const groups = parsed.reduce((acc, sample) => {
+            const group = acc.get(sample.batch) || []
+            group.push(sample)
+            acc.set(sample.batch, group)
+            return acc
+        }, new Map<number, ParsedSample[]>())
+
+        // Sort within each group
+        for (const [batch, items] of groups) {
+            groups.set(batch, items.sort((a, b) => b.index - a.index))
+        }
+
+        // return new Map([...groups].sort((a, b) => b[0] - a[0]))
+        return new Map([...groups])
+    }, [samples])
+
+    if (isLoading) return <div>Loading samples...</div>
+    if (error) return <div>Error: {error.message}</div>
+
+    return (
+        <div className="p-6 space-y-8">
+            <h1 className="text-2xl font-bold">Samples Gallery</h1>
+
+            {Array.from(groupedSamples).map(([batch, items]) => (
+                <div key={batch} className="space-y-2">
+                    <h2 className="text-xl font-semibold">
+                        Step {batch}
+                    </h2>
+                    <div className="overflow-x-auto">
+                        <div className="flex gap-4 min-w-full pb-4">
+                            {items.sort((a: any, b: any) => a.index - b.index).map((sample: any) => (
+                                <div key={sample.filename} className="flex-shrink-0 w-48">
+                                    <Image
+                                        src={`${process.env.NEXT_PUBLIC_API_URL}${sample.url}`}
+                                        alt={`Sample ${sample.index}`}
+                                        width={200}
+                                        height={200}
+                                        className="rounded-lg shadow-sm object-cover w-full h-48"
+                                    />
+                                    <div className="mt-2 text-sm">
+                                        <div className="text-gray-600">
+                                            {new Date(sample.created_at).toLocaleString()}
+                                        </div>
+                                        <a
+                                            href={`${process.env.NEXT_PUBLIC_API_URL}${sample.url}`}
+                                            target="_blank"
+                                            rel="noopener noreferrer"
+                                            className="text-blue-600 hover:underline"
+                                        >
+                                            Sample {sample.index}
+                                        </a>
+                                    </div>
+                                </div>
+                            ))}
+                        </div>
+                    </div>
+                </div>
+            ))}
+        </div>
+    )
+}