<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\Booking;

use Brain\Monkey\Functions;
use Mockery;
use Unsupervised\Schedular\Availability\AvailabilityRepository;
use Unsupervised\Schedular\Availability\AvailabilitySlot;
use Unsupervised\Schedular\Booking\BookingRepository;
use Unsupervised\Schedular\Booking\Lesson;
use Unsupervised\Schedular\Booking\LessonController;
use Unsupervised\Schedular\Booking\LessonDetail;
use Unsupervised\Schedular\Offering\OfferingRepository;
use Unsupervised\Schedular\Payment\PaymentRepository;
use Unsupervised\Schedular\Tests\Unit\TestCase;

class LessonControllerTest extends TestCase
{
    private BookingRepository&Mockery\MockInterface $bookings;
    private PaymentRepository&Mockery\MockInterface $payments;
    private AvailabilityRepository&Mockery\MockInterface $availability;
    private OfferingRepository&Mockery\MockInterface $offerings;
    private LessonDetail&Mockery\MockInterface $detail;
    private LessonController $controller;

    protected function setUp(): void
    {
        parent::setUp();

        $this->bookings     = Mockery::mock(BookingRepository::class);
        $this->payments     = Mockery::mock(PaymentRepository::class);
        $this->availability = Mockery::mock(AvailabilityRepository::class);
        $this->offerings    = Mockery::mock(OfferingRepository::class);
        $this->detail       = Mockery::mock(LessonDetail::class);
        $this->controller   = new LessonController($this->bookings, $this->payments, $this->availability, $this->offerings, $this->detail);

        $_POST = [];
        $_GET  = [];

        Functions\when('current_user_can')->justReturn(true);
        Functions\when('get_userdata')->justReturn(false);
        Functions\when('mysql2date')->alias(
            static fn (string $format, string $date) => date($format, (int) strtotime($date))
        );
        Functions\when('wp_unslash')->returnArg();
        Functions\when('sanitize_text_field')->returnArg();
        Functions\when('sanitize_key')->alias(static fn ($v) => strtolower((string) $v));
        Functions\when('get_option')->justReturn(1);
        Functions\when('current_time')->justReturn('2026-07-06');
        Functions\when('admin_url')->alias(static fn (string $path) => 'https://example.test/wp-admin/' . $path);
        Functions\when('add_query_arg')->alias(static fn ($key, $value, $url) => $url . '&' . $key . '=' . $value);
    }

    public function testAdminDashboardShowsSlotDateTimeInsteadOfSlotId(): void
    {
        $_GET['usc_view'] = 'list';

        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, id: 1);
        $slot   = new AvailabilitySlot(
            instructorId: 3,
            startDt: '2026-07-06 09:00:00',
            endDt: '2026-07-06 10:00:00',
            id: 10
        );

        $this->bookings->shouldReceive('findAllUpcoming')->once()->andReturn([$lesson]);
        $this->availability->shouldReceive('findById')->once()->with(10)->andReturn($slot);

        $html = $this->render();

        self::assertStringContainsString('Jul 6, 2026 9:00 AM–10:00 AM', $html);
        self::assertStringContainsString('Date/Time', $html);
        self::assertStringNotContainsString('Slot ID', $html);
    }

    public function testSlotCrossingMidnightRepeatsTheDateOnTheEndTime(): void
    {
        $_GET['usc_view'] = 'list';

        $lesson = new Lesson(slotId: 11, studentId: 5, instructorId: 3, id: 2);
        $slot   = new AvailabilitySlot(
            instructorId: 3,
            startDt: '2026-07-06 23:00:00',
            endDt: '2026-07-07 00:30:00',
            id: 11
        );

        $this->bookings->shouldReceive('findAllUpcoming')->once()->andReturn([$lesson]);
        $this->availability->shouldReceive('findById')->once()->with(11)->andReturn($slot);

        $html = $this->render();

        self::assertStringContainsString('Jul 6, 2026 11:00 PM–Jul 7, 2026 12:30 AM', $html);
    }

    public function testMissingSlotRendersDash(): void
    {
        $lesson = new Lesson(slotId: 99, studentId: 5, instructorId: 3, id: 3);

        $this->bookings->shouldReceive('findAllUpcoming')->once()->andReturn([$lesson]);
        $this->availability->shouldReceive('findById')->once()->with(99)->andReturn(null);

        $html = $this->render();

        self::assertStringContainsString('—', $html);
    }

    public function testInstructorLessonsShowSlotDateTime(): void
    {
        $_GET['usc_view'] = 'list';
        Functions\when('get_current_user_id')->justReturn(3);

        $lesson = new Lesson(slotId: 12, studentId: 5, instructorId: 3, id: 4);
        $slot   = new AvailabilitySlot(
            instructorId: 3,
            startDt: '2026-08-01 14:00:00',
            endDt: '2026-08-01 15:00:00',
            id: 12
        );

        $this->bookings->shouldReceive('findUpcomingForInstructor')->once()->with(3)->andReturn([$lesson]);
        $this->availability->shouldReceive('findById')->once()->with(12)->andReturn($slot);

        ob_start();
        $this->controller->renderInstructorLessons();
        $html = (string) ob_get_clean();

        self::assertStringContainsString('Aug 1, 2026 2:00 PM–3:00 PM', $html);
    }

    public function testDefaultsToWeekViewWithLessonInItsDay(): void
    {
        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, id: 1);
        $slot   = new AvailabilitySlot(
            instructorId: 3,
            startDt: '2026-07-08 09:00:00',
            endDt: '2026-07-08 10:00:00',
            id: 10
        );

        $this->bookings->shouldReceive('findAllUpcoming')->once()->andReturn([$lesson]);
        $this->availability->shouldReceive('findById')->once()->with(10)->andReturn($slot);

        $html = $this->render();

        // Week of Monday 2026-07-06 (start_of_week = 1, today = 2026-07-06).
        self::assertStringContainsString('Week of Jul 6, 2026', $html);
        self::assertStringContainsString('Wed Jul 8', $html);
        self::assertStringContainsString('9:00 AM', $html);
        // The list table is not rendered in week view.
        self::assertStringNotContainsString('Date/Time', $html);
    }

    public function testWeekViewHonoursRequestedWeek(): void
    {
        $_GET['usc_week'] = '2026-08-01';

        $this->bookings->shouldReceive('findAllUpcoming')->once()->andReturn([]);

        $html = $this->render();

        // 2026-08-01 is a Saturday; its Monday-start week begins 2026-07-27.
        self::assertStringContainsString('Week of Jul 27, 2026', $html);
    }

    public function testLessonOutsideDisplayedWeekIsNotShown(): void
    {
        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, id: 1);
        $slot   = new AvailabilitySlot(
            instructorId: 3,
            startDt: '2026-09-01 09:00:00',
            endDt: '2026-09-01 10:00:00',
            id: 10
        );

        $this->bookings->shouldReceive('findAllUpcoming')->once()->andReturn([$lesson]);
        $this->availability->shouldReceive('findById')->once()->with(10)->andReturn($slot);

        $html = $this->render();

        self::assertStringNotContainsString('9:00 AM', $html);
    }

    public function testListViewShowsBookedOfferingName(): void
    {
        $_GET['usc_view'] = 'list';

        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, offeringId: 8, id: 1);
        $slot   = new AvailabilitySlot(
            instructorId: 3,
            startDt: '2026-07-06 09:00:00',
            endDt: '2026-07-06 10:00:00',
            id: 10
        );
        $offering = new \Unsupervised\Schedular\Offering\Offering(
            instructorId: 3,
            kind: 'private_lesson',
            title: 'Piano Lesson',
            durationMinutes: 60,
            id: 8
        );

        $this->bookings->shouldReceive('findAllUpcoming')->once()->andReturn([$lesson]);
        $this->availability->shouldReceive('findById')->once()->with(10)->andReturn($slot);
        $this->offerings->shouldReceive('findById')->once()->with(8)->andReturn($offering);

        $html = $this->render();

        self::assertStringContainsString('Piano Lesson', $html);
        self::assertStringContainsString('lesson_id=1', $html);
    }

    public function testLessonIdRoutesToDetailWithAnswersAndPolicies(): void
    {
        $_GET['lesson_id'] = '1';

        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, offeringId: 8, id: 1);
        $slot   = new AvailabilitySlot(
            instructorId: 3,
            startDt: '2026-07-06 09:00:00',
            endDt: '2026-07-06 10:00:00',
            id: 10
        );
        $offering = new \Unsupervised\Schedular\Offering\Offering(
            instructorId: 3,
            kind: 'private_lesson',
            title: 'Piano Lesson',
            durationMinutes: 60,
            id: 8
        );

        $this->bookings->shouldReceive('findById')->once()->with(1)->andReturn($lesson);
        $this->availability->shouldReceive('findById')->once()->with(10)->andReturn($slot);
        $this->offerings->shouldReceive('findById')->once()->with(8)->andReturn($offering);
        // The lesson itself is handed over, so the presenter can follow a series
        // occurrence back to the anchor its answers and acceptances hang off.
        $this->detail->shouldReceive('answers')->once()->with($lesson)->andReturn([
            ['question' => 'Skill level', 'answer' => 'Beginner'],
        ]);
        $this->detail->shouldReceive('acceptances')->once()->with($lesson)->andReturn([
            ['policy' => 'Cancellation', 'version' => 'v2', 'accepted_at' => '2026-07-01 10:00:00', 'ip' => '1.2.3.4'],
        ]);

        // The list of lessons must never be queried when routing to a detail view.
        $this->bookings->shouldNotReceive('findAllUpcoming');

        $html = $this->render();

        self::assertStringContainsString('Lesson details', $html);
        self::assertStringContainsString('Piano Lesson', $html);
        self::assertStringContainsString('Skill level', $html);
        self::assertStringContainsString('Beginner', $html);
        self::assertStringContainsString('Cancellation', $html);
    }

    public function testInstructorCannotOpenAnotherInstructorsLessonDetail(): void
    {
        $_GET['lesson_id'] = '1';
        Functions\when('get_current_user_id')->justReturn(99);

        // The lesson belongs to instructor 3, not the current user (99).
        $lesson = new Lesson(slotId: 10, studentId: 5, instructorId: 3, offeringId: 8, id: 1);

        $this->bookings->shouldReceive('findById')->once()->with(1)->andReturn($lesson);
        $this->detail->shouldNotReceive('answers');
        $this->detail->shouldNotReceive('acceptances');

        ob_start();
        $this->controller->renderInstructorLessons();
        $html = (string) ob_get_clean();

        self::assertStringContainsString('could not be found', $html);
        self::assertStringNotContainsString('Skill level', $html);
    }

    private function render(): string
    {
        ob_start();
        $this->controller->renderAdminDashboard();

        return (string) ob_get_clean();
    }
}