<?php

namespace App\Http\Controllers\Api\Family;

use App\Http\Controllers\Api\Core\BaseApiController;
use App\Http\Requests\Families\FamilyAdminCardRequest;
use App\Http\Requests\Families\FamilyAdminIndexRequest;
use App\Http\Requests\Families\FamilyAdminSearchRequest;
use App\Http\Requests\Families\FamilyComposeEmailRequest;
use App\Http\Resources\Families\FamilyResource;
use App\Http\Resources\Families\FamilySearchItemResource;
use App\Models\Configuration;
use App\Services\Families\FamilyNotificationService;
use App\Services\Families\FamilyQueryService;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Log;
use Symfony\Component\HttpFoundation\Response;

class FamilyAdminController extends BaseApiController
{
    public function __construct(
        private FamilyQueryService $queryService,
        private FamilyNotificationService $notificationService
    ) {
        parent::__construct();
    }

    public function index(FamilyAdminIndexRequest $request): JsonResponse
    {
        $payload = $request->validated();
        $schoolYear = $this->requestedSchoolYear($request, $payload);

        $data = $this->queryService->adminIndexData(
            $payload['student_id'] ?? null,
            $payload['guardian_id'] ?? null,
            $schoolYear
        );

        return $this->success([
            'student' => $data['student'],
            'families' => FamilyResource::collection($data['families']),
            'guardians' => $data['guardians'],
            'students' => $data['students'],
            'searchStudents' => $data['searchStudents'],
            'searchGuardians' => $data['searchGuardians'],
            'resolved_student_id' => $data['resolved_student_id'],
        ]);
    }

    public function search(FamilyAdminSearchRequest $request): JsonResponse
    {
        $payload = $request->validated();
        $items = $this->queryService->searchSuggestions(
            (string) $payload['q'],
            (int) ($payload['limit'] ?? 8)
        );

        return $this->success([
            'items' => FamilySearchItemResource::collection($items),
        ]);
    }

    public function card(FamilyAdminCardRequest $request): JsonResponse
    {
        $payload = $request->validated();
        $schoolYear = $this->requestedSchoolYear($request, $payload);

        $family = $this->queryService->familyCard(
            $payload['student_id'] ?? null,
            $payload['guardian_id'] ?? null,
            $payload['family_id'] ?? null,
            $schoolYear
        );

        if (! $family) {
            return $this->error('Family not found.', Response::HTTP_NOT_FOUND);
        }

        return $this->success(new FamilyResource($family));
    }

    private function requestedSchoolYear($request, array $payload): string
    {
        $candidates = [
            $payload['school_year'] ?? null,
            $request->query('school_year'),
            $request->header('X-School-Year'),
            $request->header('X-Selected-School-Year'),
            Configuration::getConfig('school_year'),
        ];

        foreach ($candidates as $candidate) {
            $value = trim((string) ($candidate ?? ''));
            if ($value !== '') {
                return $value;
            }
        }

        return '';
    }

    public function composeEmail(FamilyComposeEmailRequest $request): JsonResponse
    {
        $payload = $request->validated();

        $ok = $this->notificationService->sendComposeEmail(
            (string) $payload['recipient'],
            (string) $payload['subject'],
            (string) $payload['html_message'],
            $payload['profile'] ?? null,
            $payload['reply_to_email'] ?? null,
            $payload['reply_to_name'] ?? null
        );

        if (! $ok) {
            Log::warning('Compose email failed for family admin', ['recipient' => $payload['recipient']]);

            return $this->error('Unable to send email.', Response::HTTP_INTERNAL_SERVER_ERROR);
        }

        return $this->success(['recipient' => $payload['recipient']], 'Email sent.');
    }
}