<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Models\FruitImage;
use App\Models\SortingSession;
use Illuminate\Http\Request;

class FruitImageController extends Controller
{
    /**
     * Terima foto JPEG dari ESP32-CAM dan simpan ke MongoDB.
     * POST /api/upload-foto
     *
     * Field multipart/form-data:
     *   - label : string (nama buah, contoh: "pisang matang")
     *   - image : file JPEG
     */
    public function upload(Request $request)
    {
        $request->validate([
            'label' => 'required|string|max:100',
            'image' => 'required|file|mimes:jpeg,jpg,png|max:2048', // maks 2 MB, termasuk PNG untuk testing
        ]);

        try {
            // Ambil sesi aktif jika ada, boleh null
            $activeSession = SortingSession::active()->first();
            $sessionId = $activeSession ? (string) $activeSession->_id : null;

            // Konversi file JPEG ke Base64
            $file = $request->file('image');
            $imageBase64 = base64_encode(file_get_contents($file->getRealPath()));
            $imageSize   = $file->getSize(); // ukuran byte asli

            $record = FruitImage::create([
                'session_id'   => $sessionId,
                'label'        => $request->input('label'),
                'image_base64' => $imageBase64,
                'image_size'   => $imageSize,
                'captured_at'  => now(),
            ]);

            return response()->json([
                'success'    => true,
                'message'    => 'Foto berhasil disimpan.',
                'id'         => (string) $record->_id,
                'label'      => $record->label,
                'image_size' => $record->image_size,
            ], 201);

        } catch (\Exception $e) {
            \Log::error('Upload foto gagal: ' . $e->getMessage());

            return response()->json([
                'success' => false,
                'message' => 'Gagal menyimpan foto: ' . $e->getMessage(),
            ], 500);
        }
    }
}