<?php
declare(strict_types=1);

namespace Unsupervised\Schedular\Tests\Unit\Availability;

use Brain\Monkey\Functions;
use Mockery;
use Unsupervised\Schedular\Availability\AvailabilityController;
use Unsupervised\Schedular\Availability\AvailabilityRepository;
use Unsupervised\Schedular\Availability\AvailabilitySlot;
use Unsupervised\Schedular\Offering\OfferingRepository;
use Unsupervised\Schedular\Tests\Unit\TestCase;

class AvailabilityControllerTest extends TestCase
{
    private AvailabilityRepository&Mockery\MockInterface $repository;
    private OfferingRepository&Mockery\MockInterface $offerings;
    private AvailabilityController $controller;

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

        $this->repository = Mockery::mock(AvailabilityRepository::class);
        $this->offerings  = Mockery::mock(OfferingRepository::class);
        $this->controller = new AvailabilityController($this->repository, $this->offerings);

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

        Functions\when('current_user_can')->justReturn(true);
        Functions\when('get_current_user_id')->justReturn(3);
        Functions\when('check_admin_referer')->justReturn(true);
        Functions\when('wp_unslash')->returnArg();
        Functions\when('sanitize_text_field')->returnArg();
        Functions\when('sanitize_key')->alias(
            static fn ($key) => strtolower((string) preg_replace('/[^a-zA-Z0-9_\-]/', '', (string) $key))
        );
        Functions\when('absint')->alias(static fn ($value) => abs((int) $value));
        Functions\when('get_option')->justReturn(1);
        Functions\when('current_time')->justReturn('2026-07-06');
        Functions\when('admin_url')->justReturn('admin.php?page=us-availability');
        Functions\when('add_query_arg')->justReturn('admin.php?page=us-availability&usc_view=week');
        Functions\when('wp_nonce_field')->justReturn('');
        Functions\when('submit_button')->justReturn('');
        Functions\when('mysql2date')->alias(
            static fn (string $format, string $date) => date($format, (int) strtotime($date))
        );

        $this->offerings->shouldReceive('findAll')->andReturn([]);
    }

    public function testBulkDeleteRemovesOnlyOwnedExistingSlots(): void
    {
        $_POST = [
            'usc_action' => 'bulk_delete',
            'slot_ids'   => ['5', 'junk', '7', '9'],
        ];

        $owned = new AvailabilitySlot(instructorId: 3, startDt: '2026-07-08 09:00:00', endDt: '2026-07-08 10:00:00', id: 5);
        $other = new AvailabilitySlot(instructorId: 4, startDt: '2026-07-08 09:00:00', endDt: '2026-07-08 10:00:00', id: 7);

        $this->repository->shouldReceive('findById')->once()->with(5)->andReturn($owned);
        $this->repository->shouldReceive('findById')->once()->with(7)->andReturn($other);
        $this->repository->shouldReceive('findById')->once()->with(9)->andReturn(null);
        $this->repository->shouldReceive('delete')->once()->with(5)->andReturn(true);
        $this->repository->shouldReceive('findByInstructor')->once()->with(3)->andReturn([]);

        $this->render();
    }

    public function testBulkDeleteIgnoresNonArrayInput(): void
    {
        $_POST = [
            'usc_action' => 'bulk_delete',
            'slot_ids'   => '5',
        ];

        $this->repository->shouldNotReceive('findById');
        $this->repository->shouldNotReceive('delete');
        $this->repository->shouldReceive('findByInstructor')->once()->with(3)->andReturn([]);

        $this->render();
    }

    public function testSingleDeleteChecksOwnership(): void
    {
        $_POST = [
            'usc_action' => 'delete',
            'slot_id'    => '7',
        ];

        $other = new AvailabilitySlot(instructorId: 4, startDt: '2026-07-08 09:00:00', endDt: '2026-07-08 10:00:00', id: 7);

        $this->repository->shouldReceive('findById')->once()->with(7)->andReturn($other);
        $this->repository->shouldNotReceive('delete');
        $this->repository->shouldReceive('findByInstructor')->once()->with(3)->andReturn([]);

        $this->render();
    }

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

        $this->repository->shouldReceive('findByInstructor')->once()->with(3)->andReturn([$slot]);

        $html = $this->render();

        // Week of Monday 2026-07-06 (start_of_week = 1, today = 2026-07-06).
        self::assertStringContainsString('Week of', $html);
        // The list table (with its bulk-delete form) is not rendered by default.
        self::assertStringNotContainsString('id="usc-bulk-delete-form"', $html);
    }

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

        $unbooked = new AvailabilitySlot(instructorId: 3, startDt: '2026-07-08 09:00:00', endDt: '2026-07-08 10:00:00', id: 5);
        $booked   = new AvailabilitySlot(instructorId: 3, startDt: '2026-07-08 10:00:00', endDt: '2026-07-08 11:00:00', isBooked: true, id: 6);

        $this->repository->shouldReceive('findByInstructor')->once()->with(3)->andReturn([$unbooked, $booked]);

        $html = $this->render();

        self::assertStringContainsString('id="usc-bulk-delete-form"', $html);
        self::assertStringContainsString('value="bulk_delete"', $html);
        self::assertStringContainsString('Delete selected', $html);
        self::assertStringContainsString('name="slot_ids[]" form="usc-bulk-delete-form" value="5"', $html);
        self::assertStringNotContainsString('name="slot_ids[]" form="usc-bulk-delete-form" value="6"', $html);
    }

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

        return (string) ob_get_clean();
    }
}