<?php

declare(strict_types=1);

namespace OCA\WorkflowDeckAutomation\Tests\Unit\Service;

use OCA\WorkflowDeckAutomation\Service\NotificationPolicy;
use PHPUnit\Framework\TestCase;

class NotificationPolicyTest extends TestCase {
	public function testOffNeverNotifies(): void {
		$this->assertFalse(NotificationPolicy::shouldNotify('off', false, true));
		// Not even the owner of an unshared board — "off" is "off" in Deck too.
		$this->assertFalse(NotificationPolicy::shouldNotify('off', true, true));
	}

	public function testAllAlwaysNotifies(): void {
		$this->assertTrue(NotificationPolicy::shouldNotify('all', false, false));
		$this->assertTrue(NotificationPolicy::shouldNotify('all', true, false));
	}

	public function testAssignedNotifiesOnlyAssignedUsers(): void {
		$this->assertTrue(NotificationPolicy::shouldNotify('assigned', false, true));
		$this->assertFalse(NotificationPolicy::shouldNotify('assigned', false, false));
	}

	public function testOwnerOfUnsharedBoardIsNotifiedWithAssigned(): void {
		$this->assertTrue(NotificationPolicy::shouldNotify('assigned', true, false));
	}

	public function testUnknownSettingFallsBackToDeckDefault(): void {
		$this->assertTrue(NotificationPolicy::shouldNotify('', false, true));
		$this->assertFalse(NotificationPolicy::shouldNotify('bogus', false, false));
		$this->assertTrue(NotificationPolicy::shouldNotify('bogus', true, false));
	}

	public function testAssignmentIsOnlyLookedUpWhenItMatters(): void {
		$lookup = function (): bool {
			$this->fail('assignment lookup must not run');
		};
		$this->assertFalse(NotificationPolicy::shouldNotify('off', false, $lookup));
		$this->assertTrue(NotificationPolicy::shouldNotify('all', false, $lookup));
		$this->assertTrue(NotificationPolicy::shouldNotify('assigned', true, $lookup));

		$this->assertTrue(NotificationPolicy::shouldNotify('assigned', false, static fn (): bool => true));
		$this->assertFalse(NotificationPolicy::shouldNotify('assigned', false, static fn (): bool => false));
	}

	public function testModes(): void {
		foreach (['off', 'owner', 'board'] as $mode) {
			$this->assertTrue(NotificationPolicy::isValidMode($mode));
		}
		$this->assertFalse(NotificationPolicy::isValidMode(''));
		$this->assertFalse(NotificationPolicy::isValidMode('all'));
	}

	public function testChannels(): void {
		foreach (['mail', 'notification', 'both'] as $channel) {
			$this->assertTrue(NotificationPolicy::isValidChannel($channel));
		}
		$this->assertFalse(NotificationPolicy::isValidChannel(''));
		$this->assertFalse(NotificationPolicy::isValidChannel('push'));
	}

	public function testChannelDecidesMailAndNotification(): void {
		$this->assertTrue(NotificationPolicy::sendsMail('mail'));
		$this->assertFalse(NotificationPolicy::sendsNotification('mail'));

		$this->assertFalse(NotificationPolicy::sendsMail('notification'));
		$this->assertTrue(NotificationPolicy::sendsNotification('notification'));

		$this->assertTrue(NotificationPolicy::sendsMail('both'));
		$this->assertTrue(NotificationPolicy::sendsNotification('both'));
	}

	public function testUnknownChannelFallsBackToMail(): void {
		$this->assertTrue(NotificationPolicy::sendsMail(''));
		$this->assertFalse(NotificationPolicy::sendsNotification(''));
		$this->assertTrue(NotificationPolicy::sendsMail('bogus'));
		$this->assertFalse(NotificationPolicy::sendsNotification('bogus'));
	}
}