<?php

namespace App\Tests\Resource;

use App\Appointment\Availability\Entity\ResourceOccupancy;
use App\Appointment\Entity\Appointment;
use App\Auth\Entity\User;
use App\ClinicService\Entity\ServiceItem;
use App\ClinicService\Entity\ServiceSection;
use App\Doctor\Entity\Doctor;
use App\Doctor\Entity\DoctorAddress;
use App\Resource\Entity\ClinicResource;
use App\Resource\Entity\ResourceCalendar;
use App\Resource\Entity\ResourceServiceOffering;
use App\Shared\Context\EntityContext;

/**
 * زمان‌های نوبت‌دهیِ یک منبع — همان چیزی که تایم‌لاین و مودالِ «ثبت نوبت» صفحهٔ
 * نوبت‌ها مصرف می‌کنند.
 *
 * منبع اسلات ثابت ندارد: بازهٔ کاری از تقویم خودش می‌آید و زمان‌ها از مدتِ سرویس‌های
 * انتخاب‌شده ساخته می‌شوند.
 */
class ResourceBookingSlotTest extends ResourceTestCase
{
    private const SHIFT_FROM = 540;   // ۰۹:۰۰
    private const SHIFT_TO   = 1020;  // ۱۷:۰۰

    /** @return array{0: User, 1: Doctor, 2: ClinicResource, 3: DoctorAddress} */
    private function resourceWithShift(): array
    {
        [$user, $doctor, $address] = $this->doctorWithAddress();

        $resource = new ClinicResource($address, $this->resourceType($address), 'لیزر CO2');
        $resource->setSupervisor($doctor);
        $this->em->persist($resource);
        $this->em->flush();

        $this->em->persist(new ResourceCalendar(
            $resource,
            $this->dayOfWeek($this->midnight()),
            self::SHIFT_FROM,
            self::SHIFT_TO,
        ));
        $this->em->flush();

        return [$user, $doctor, $resource, $address];
    }

    private function offer(ClinicResource $resource, DoctorAddress $address, string $name, ?int $minutes): ServiceItem
    {
        $section = new ServiceSection($address->tenantEntityType(), $address->tenantEntityId(), 'بخش ' . $name);
        $this->em->persist($section);

        $item = new ServiceItem($section, $name, 5_000_000);
        $item->setBookable(true);
        $this->em->persist($item);
        $this->em->flush();

        $offering = new ResourceServiceOffering($resource, $item);
        $offering->setDurationMinutes($minutes);
        $this->em->persist($offering);
        $this->em->flush();

        return $item;
    }

    /** فردا انتخاب می‌شود تا «زمانِ گذشته» نتیجه را کوتاه نکند. */
    private function midnight(): int
    {
        return (int) strtotime('tomorrow midnight');
    }

    private function date(): string
    {
        return date('Y-m-d', $this->midnight());
    }

    /** ۰ = شنبه، همان قرارداد تقویم منبع. */
    private function dayOfWeek(int $timestamp): int
    {
        return ((int) date('w', $timestamp) + 1) % 7;
    }

    private function bookOnResource(Doctor $doctor, User $user, ClinicResource $resource, int $start, int $end): void
    {
        $appointment = new Appointment($doctor, $user, $start, $end);
        $appointment->setResource($resource);
        $appointment->assignTenant(EntityContext::forBooking($doctor, null));
        $this->em->persist($appointment);
        $this->em->flush();
    }

    // ── ✅ موفق ──────────────────────────────────────────────────────────────

    public function testTheDayViewReturnsTheResourceShiftAsItsWorkingWindow(): void
    {
        [$user, , $resource] = $this->resourceWithShift();

        $body = $this->authJson('GET', "/api/v1/resource/{$resource->getUuid()}/day-slots?date={$this->date()}", $user);

        self::assertSame(200, $this->responseCode(), json_encode($body, JSON_UNESCAPED_UNICODE));
        self::assertNull($body['data']['empty_reason']);
        self::assertCount(1, $body['data']['windows']);
        self::assertSame($this->midnight() + self::SHIFT_FROM * 60, $body['data']['windows'][0]['start']);
        self::assertSame($this->midnight() + self::SHIFT_TO * 60, $body['data']['windows'][0]['end']);
    }

    public function testServiceSlotsAreChainedFromTheResourceDurationOfEachService(): void
    {
        [$user, , $resource, $address] = $this->resourceWithShift();
        $laser = $this->offer($resource, $address, 'لیزر زیربغل', 25);
        $rf    = $this->offer($resource, $address, 'RF فرکشنال', 35);

        $body = $this->authJson('GET', sprintf(
            '/api/v1/resource/%s/service-slots?date=%s&service_item_uuids[]=%s&service_item_uuids[]=%s',
            $resource->getUuid(),
            $this->date(),
            $laser->getUuid(),
            $rf->getUuid(),
        ), $user);

        self::assertSame(200, $this->responseCode(), json_encode($body, JSON_UNESCAPED_UNICODE));
        self::assertSame(60, $body['data']['total_duration_minutes']);
        // ۸ ساعت شیفت ÷ ۶۰ دقیقه = ۸ زمان، پشت‌سرهم از ۰۹:۰۰.
        self::assertCount(8, $body['data']['start_times']);
        self::assertSame('09:00', $body['data']['start_times'][0]['start_time']);
        self::assertSame('10:00', $body['data']['start_times'][1]['start_time']);
    }

    public function testAnAppointmentOnTheResourceRemovesItsTimeFromTheOffer(): void
    {
        [$user, $doctor, $resource, $address] = $this->resourceWithShift();
        $service  = $this->offer($resource, $address, 'لیزر صورت', 60);
        $occupied = $this->midnight() + 10 * 3600;

        $this->bookOnResource($doctor, $user, $resource, $occupied, $occupied + 3600);

        $body = $this->authJson('GET', sprintf(
            '/api/v1/resource/%s/service-slots?date=%s&service_item_uuids[]=%s',
            $resource->getUuid(),
            $this->date(),
            $service->getUuid(),
        ), $user);

        $starts = array_column($body['data']['start_times'], 'start_time');
        self::assertNotContains('10:00', $starts);
        self::assertContains('09:00', $starts);
        self::assertContains('11:00', $starts);
    }

    /** مدتِ فرستاده‌شده فقط همین محاسبه را جابه‌جا می‌کند، نه پیش‌فرضِ سرویس را. */
    public function testAPerRequestDurationOverridesTheOffering(): void
    {
        [$user, , $resource, $address] = $this->resourceWithShift();
        $service = $this->offer($resource, $address, 'کرایوتراپی', 25);

        $body = $this->authJson('GET', sprintf(
            '/api/v1/resource/%s/service-slots?date=%s&service_item_uuids[]=%s&durations[%s]=120',
            $resource->getUuid(),
            $this->date(),
            $service->getUuid(),
            $service->getUuid(),
        ), $user);

        self::assertSame(120, $body['data']['total_duration_minutes']);
        self::assertCount(4, $body['data']['start_times']);   // ۸ ساعت ÷ ۲ ساعت
    }

    // ── ⚠️ مرزی ─────────────────────────────────────────────────────────────

    /** اتاق دوتخته با یک نوبت پر نمی‌شود. */
    public function testCapacityKeepsTheTimeOnOfferUntilItIsFull(): void
    {
        [$user, $doctor, $resource, $address] = $this->resourceWithShift();
        $resource->setCapacity(2);
        $this->em->flush();

        $service  = $this->offer($resource, $address, 'اکسیژن‌تراپی', 60);
        $occupied = $this->midnight() + 10 * 3600;
        $this->bookOnResource($doctor, $user, $resource, $occupied, $occupied + 3600);

        $body = $this->authJson('GET', sprintf(
            '/api/v1/resource/%s/service-slots?date=%s&service_item_uuids[]=%s',
            $resource->getUuid(),
            $this->date(),
            $service->getUuid(),
        ), $user);

        self::assertContains('10:00', array_column($body['data']['start_times'], 'start_time'));
    }

    /** روزِ بی‌شیفت خطا نیست؛ باید بگوید چرا خالی است. */
    public function testADayWithoutAShiftExplainsItself(): void
    {
        [$user, , $resource] = $this->resourceWithShift();
        $otherDay = date('Y-m-d', $this->midnight() + 3 * 86400);

        $body = $this->authJson('GET', "/api/v1/resource/{$resource->getUuid()}/day-slots?date={$otherDay}", $user);

        self::assertSame(200, $this->responseCode());
        self::assertSame([], $body['data']['windows']);
        self::assertNotNull($body['data']['empty_reason']);
    }

    /** رزرو موقتِ موتور منبع‌محور هم وقت را می‌گیرد، نه فقط نوبتِ ثبت‌شده. */
    public function testAHoldFromTheResourceEngineAlsoBlocksTheTime(): void
    {
        [$user, , $resource, $address] = $this->resourceWithShift();
        $service = $this->offer($resource, $address, 'مزوتراپی', 60);
        $held    = $this->midnight() + 12 * 3600;

        $this->em->persist(new ResourceOccupancy($resource, $held, $held + 3600, ResourceOccupancy::STATUS_HOLD));
        $this->em->flush();

        $body = $this->authJson('GET', sprintf(
            '/api/v1/resource/%s/service-slots?date=%s&service_item_uuids[]=%s',
            $resource->getUuid(),
            $this->date(),
            $service->getUuid(),
        ), $user);

        self::assertNotContains('12:00', array_column($body['data']['start_times'], 'start_time'));
    }

    // ── ❌ خطا ───────────────────────────────────────────────────────────────

    public function testAServiceThisResourceDoesNotOfferIsRefused(): void
    {
        [$user, , $resource, $address] = $this->resourceWithShift();

        $section = new ServiceSection($address->tenantEntityType(), $address->tenantEntityId(), 'بخش دیگر');
        $this->em->persist($section);
        $foreign = new ServiceItem($section, 'سرویس بی‌ربط', 1_000_000);
        $foreign->setDurationMinutes(20)->setBookable(true);
        $this->em->persist($foreign);
        $this->em->flush();

        $this->authJson('GET', sprintf(
            '/api/v1/resource/%s/service-slots?date=%s&service_item_uuids[]=%s',
            $resource->getUuid(),
            $this->date(),
            $foreign->getUuid(),
        ), $user);

        self::assertSame(422, $this->responseCode());
    }

    public function testAnOfferingWithoutADurationIsRefused(): void
    {
        [$user, , $resource, $address] = $this->resourceWithShift();
        $service = $this->offer($resource, $address, 'بدون مدت', null);

        $this->authJson('GET', sprintf(
            '/api/v1/resource/%s/service-slots?date=%s&service_item_uuids[]=%s',
            $resource->getUuid(),
            $this->date(),
            $service->getUuid(),
        ), $user);

        self::assertSame(422, $this->responseCode());
    }

    public function testAMalformedDateIsRefused(): void
    {
        [$user, , $resource] = $this->resourceWithShift();

        $this->authJson('GET', "/api/v1/resource/{$resource->getUuid()}/day-slots?date=05-08-2026", $user);

        self::assertSame(422, $this->responseCode());
    }

    public function testAnotherEnvironmentDoesNotSeeThisResource(): void
    {
        [, , $resource] = $this->resourceWithShift();
        [$stranger]     = $this->doctorWithAddress();

        $this->authJson('GET', "/api/v1/resource/{$resource->getUuid()}/day-slots?date={$this->date()}", $stranger);

        self::assertSame(404, $this->responseCode());
    }
}