<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use App\Http\Requests\StoreStudentAssignmentRequest;
use App\Services\AssignmentService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class AssignmentController extends Controller
{
    public function index(Request $request, AssignmentService $service): JsonResponse
    {
        $payload = $service->buildClassAssignments([
            'semester'    => (string) $request->query('semester', ''),
            'school_year' => (string) $request->query('school_year', ''),
            'for_api'     => true,
        ]);

        return response()->json($payload);
    }

    /**
     * Save / update a student-class assignment
     */
    public function store(StoreStudentAssignmentRequest $request, AssignmentService $service): JsonResponse
    {
        $assignment = $service->saveStudentAssignment(
            $request->validated(),
            $request->user()?->id // fallback handled in service
        );

        return response()->json([
            'message' => 'Assignment saved successfully',
            'data'    => $assignment,
        ], 201);
    }

    /**
     * Optional endpoint if you want old `classAssignmentData()` naming preserved
     */
    public function classAssignmentData(Request $request, AssignmentService $service): JsonResponse
    {
        return $this->index($request, $service);
    }
}