<?php

declare(strict_types=1);

namespace App\Tests\BusProNet\Service;

use App\BusProNet\Model\Travel;
use App\BusProNet\Service\BookingStatusRuleRegistry;
use App\BusProNet\Service\Contract\BookingStatusRuleInterface;
use App\BusProNet\Service\StatusRule\Selection1473StatusRule;
use App\Form\Model\BookingDto;
use PHPUnit\Framework\TestCase;

class BookingStatusRuleRegistryTest extends TestCase
{
    public function testReturnsDefaultStatusWhenNoRulesMatch(): void
    {
        $rule = $this->createStub(BookingStatusRuleInterface::class);
        $rule->method('evaluate')->willReturn(false);
        $rule->method('getPriority')->willReturn(100);

        $registry = new BookingStatusRuleRegistry([$rule]);
        $bookingDto = new BookingDto($this->createMockTravel(), 1);

        $this->assertSame('F', $registry->evaluateStatus($bookingDto));
    }

    public function testReturnsMatchingRuleStatus(): void
    {
        $rule = $this->createStub(BookingStatusRuleInterface::class);
        $rule->method('evaluate')->willReturn(true);
        $rule->method('getStatus')->willReturn('O');
        $rule->method('getPriority')->willReturn(100);

        $registry = new BookingStatusRuleRegistry([$rule]);
        $bookingDto = new BookingDto($this->createMockTravel(), 1);

        $this->assertSame('O', $registry->evaluateStatus($bookingDto));
    }

    public function testHigherPriorityRuleTakesPrecedence(): void
    {
        $lowPriorityRule = $this->createStub(BookingStatusRuleInterface::class);
        $lowPriorityRule->method('evaluate')->willReturn(true);
        $lowPriorityRule->method('getStatus')->willReturn('L');
        $lowPriorityRule->method('getPriority')->willReturn(50);

        $highPriorityRule = $this->createStub(BookingStatusRuleInterface::class);
        $highPriorityRule->method('evaluate')->willReturn(true);
        $highPriorityRule->method('getStatus')->willReturn('H');
        $highPriorityRule->method('getPriority')->willReturn(100);

        $registry = new BookingStatusRuleRegistry([$lowPriorityRule, $highPriorityRule]);
        $bookingDto = new BookingDto($this->createMockTravel(), 1);

        $this->assertSame('H', $registry->evaluateStatus($bookingDto));
    }

    public function testEmptyRulesArrayReturnsDefaultStatus(): void
    {
        $registry = new BookingStatusRuleRegistry([]);
        $bookingDto = new BookingDto($this->createMockTravel(), 1);

        $this->assertSame('F', $registry->evaluateStatus($bookingDto));
    }

    public function testFirstMatchingRuleWinsForSamePriority(): void
    {
        $firstMatchingRule = $this->createStub(BookingStatusRuleInterface::class);
        $firstMatchingRule->method('evaluate')->willReturn(true);
        $firstMatchingRule->method('getStatus')->willReturn('A');
        $firstMatchingRule->method('getPriority')->willReturn(100);

        $secondMatchingRule = $this->createStub(BookingStatusRuleInterface::class);
        $secondMatchingRule->method('evaluate')->willReturn(true);
        $secondMatchingRule->method('getStatus')->willReturn('B');
        $secondMatchingRule->method('getPriority')->willReturn(100);

        $registry = new BookingStatusRuleRegistry([$firstMatchingRule, $secondMatchingRule]);
        $bookingDto = new BookingDto($this->createMockTravel(), 1);

        $this->assertSame('A', $registry->evaluateStatus($bookingDto));
    }

    public function testNonMatchingHighPriorityRuleDoesNotBlockLowerPriority(): void
    {
        $highPriorityRule = $this->createStub(BookingStatusRuleInterface::class);
        $highPriorityRule->method('evaluate')->willReturn(false);
        $highPriorityRule->method('getStatus')->willReturn('H');
        $highPriorityRule->method('getPriority')->willReturn(100);

        $lowPriorityRule = $this->createStub(BookingStatusRuleInterface::class);
        $lowPriorityRule->method('evaluate')->willReturn(true);
        $lowPriorityRule->method('getStatus')->willReturn('L');
        $lowPriorityRule->method('getPriority')->willReturn(50);

        $registry = new BookingStatusRuleRegistry([$highPriorityRule, $lowPriorityRule]);
        $bookingDto = new BookingDto($this->createMockTravel(), 1);

        $this->assertSame('L', $registry->evaluateStatus($bookingDto));
    }

    public function testSelection1473RuleWinsOverLowerPriorityRule(): void
    {
        $lowerPriorityRule = $this->createStub(BookingStatusRuleInterface::class);
        $lowerPriorityRule->method('evaluate')->willReturn(true);
        $lowerPriorityRule->method('getStatus')->willReturn('X');
        $lowerPriorityRule->method('getPriority')->willReturn(100);

        $registry = new BookingStatusRuleRegistry([
            $lowerPriorityRule,
            new Selection1473StatusRule(),
        ]);
        $bookingDto = new BookingDto($this->createMockTravelWithSelection1473(), 1);

        $this->assertSame('O', $registry->evaluateStatus($bookingDto));
    }

    private function createMockTravel(): Travel
    {
        $travel = new Travel();
        $travel->id = 1;
        $travel->hotelId = 1;
        $travel->dateFrom = new \DateTimeImmutable('2030-01-01');
        $travel->dateTo = new \DateTimeImmutable('2030-01-08');

        return $travel;
    }

    private function createMockTravelWithSelection1473(): Travel
    {
        $travel = $this->createMockTravel();
        $travel->selectionGroups = [
            1 => $this->createSelectionGroup(1, [1473]),
        ];

        return $travel;
    }

    /**
     * @param list<int> $selectionIds
     */
    private function createSelectionGroup(int $groupId, array $selectionIds): \App\BusProNet\Model\CrmSelectionGroup
    {
        $group = new \App\BusProNet\Model\CrmSelectionGroup();
        $group->id = $groupId;
        $group->selections = [];

        foreach ($selectionIds as $selectionId) {
            $selection = new \App\BusProNet\Model\CrmSelection();
            $selection->id = $selectionId;
            $group->selections[] = $selection;
        }

        return $group;
    }
}