<?php

namespace App\Tests\MyEp\Api;

use App\BusProNet\Model\Country;
use App\BusProNet\Model\Hotel;
use App\BusProNet\Model\Pickup;
use App\MyEp\Api\ResponseMapper;
use PHPUnit\Framework\TestCase;
use Psr\Log\NullLogger;

class ResponseMapperTest extends TestCase
{
    public function testHotelsAreKeyedByTheirBusProId(): void
    {
        $hotels = $this->getMapperInstance()->mapHotels([
            ['id' => 163959, 'code' => 'LPJGR', 'name' => 'Sportclub Jenatsch'],
            ['id' => 202003, 'code' => 'SRR', 'name' => 'Berggasthof Ranalt'],
        ]);

        $this->assertEquals([163959, 202003], array_keys($hotels));
        $this->assertInstanceOf(Hotel::class, $hotels[163959]);
        $this->assertEquals(163959, $hotels[163959]->getBusProId());
        $this->assertEquals('LPJGR', $hotels[163959]->getCode());
        $this->assertEquals('Sportclub Jenatsch', $hotels[163959]->getName());
    }

    public function testHotelFieldsAreMapped(): void
    {
        $hotels = $this->getMapperInstance()->mapHotels([[
            'id' => 163959,
            'code' => 'LPJGR',
            'name' => 'Sportclub Jenatsch',
            'city' => 'Lenzerheide',
            'street' => 'Voa Principala 1',
            'phone' => '+41 81 000000',
            'country' => 'CH',
            'countryCode' => 'ch',
            'costUnit' => '4711',
        ]]);

        $hotel = $hotels[163959];

        $this->assertEquals('4711', $hotel->getCostUnit());
    }

    public function testTheRawCountryTokenIsKeptAsReported(): void
    {
        // the raw token is not a standard, it is the join key into the country base data
        $hotels = $this->getMapperInstance()->mapHotels([['id' => 1, 'country' => 'AUT']]);

        $this->assertEquals('AUT', $hotels[1]->getCountry());
    }

    public function testTheCountryCodeIsLowercasedIso(): void
    {
        // this is what reaches the two character column and the flag icons
        $hotels = $this->getMapperInstance()->mapHotels([['id' => 1, 'country' => 'AUT', 'countryCode' => 'AT']]);

        $this->assertEquals('at', $hotels[1]->getCountryCode());
    }

    public function testAnUnresolvedCountryCodeIsNull(): void
    {
        $hotels = $this->getMapperInstance()->mapHotels([
            ['id' => 1, 'country' => 'XYZ'],
            ['id' => 2, 'country' => 'SLO', 'countryCode' => null],
            ['id' => 3, 'country' => 'D', 'countryCode' => 'deu'],
        ]);

        $this->assertNull($hotels[1]->getCountryCode());
        $this->assertNull($hotels[2]->getCountryCode());
        $this->assertNull($hotels[3]->getCountryCode(), 'a three letter code does not fit the column');
    }

    public function testOptionalHotelFieldsMayBeAbsent(): void
    {
        $hotels = $this->getMapperInstance()->mapHotels([['id' => 1, 'code' => 'AAA']]);

        $this->assertNull($hotels[1]->getCountryCode());
        $this->assertNull($hotels[1]->getCostUnit());
        $this->assertNull($hotels[1]->getName());
    }

    public function testHotelsWithoutAnIdAreSkipped(): void
    {
        $hotels = $this->getMapperInstance()->mapHotels([
            ['code' => 'AAA'],
            ['id' => 0, 'code' => 'BBB'],
            ['id' => 7, 'code' => 'CCC'],
        ]);

        $this->assertEquals([7], array_keys($hotels));
    }

    public function testPickupsAreKeyedByTheirBusProId(): void
    {
        $pickups = $this->getMapperInstance()->mapPickups([
            ['id' => 4, 'code' => '298', 'city' => 'Karlsruhe', 'street' => 'A5 - Autohof Bruchsal'],
        ]);

        $this->assertEquals([4], array_keys($pickups));
        $this->assertInstanceOf(Pickup::class, $pickups[4]);
        $this->assertEquals(4, $pickups[4]->getBusProId());
        $this->assertEquals(4, $pickups[4]->getId());
        $this->assertEquals('298', $pickups[4]->getCode());
        $this->assertEquals('Karlsruhe', $pickups[4]->getCity());
        $this->assertEquals('A5 - Autohof Bruchsal', $pickups[4]->getStreet());
    }

    public function testAPickupCarriesNoTimeOfItsOwn(): void
    {
        // a departure time belongs to a boarding stop on a date, not to the stop itself
        $pickups = $this->getMapperInstance()->mapPickups([['id' => 4, 'time' => '23:59']]);

        $this->assertNull($pickups[4]->getTime());
    }

    public function testPickupsWithoutAnIdAreSkipped(): void
    {
        $pickups = $this->getMapperInstance()->mapPickups([['city' => 'Karlsruhe'], ['id' => 4]]);

        $this->assertEquals([4], array_keys($pickups));
    }

    public function testCountriesAreKeyedByTheirToken(): void
    {
        $countries = $this->getMapperInstance()->mapCountries([
            ['id' => 1, 'name' => 'Schweiz', 'token' => 'CH', 'nationality' => 'schweizerisch'],
        ]);

        $this->assertEquals(['CH'], array_keys($countries));
        $this->assertInstanceOf(Country::class, $countries['CH']);
        $this->assertEquals('Schweiz', $countries['CH']->getName());
        $this->assertEquals('CH', $countries['CH']->getToken());
        $this->assertEquals('schweizerisch', $countries['CH']->getNationality());
    }

    public function testCountriesWithoutATokenAreSkipped(): void
    {
        $countries = $this->getMapperInstance()->mapCountries([
            ['id' => 1, 'name' => 'Schweiz'],
            ['id' => 2, 'name' => 'Österreich', 'token' => 'A'],
        ]);

        $this->assertEquals(['A'], array_keys($countries));
    }

    public function testAnEmptyListMapsToAnEmptyResult(): void
    {
        $mapper = $this->getMapperInstance();

        $this->assertEquals([], $mapper->mapHotels([]));
        $this->assertEquals([], $mapper->mapPickups([]));
        $this->assertEquals([], $mapper->mapCountries([]));
    }

    private function getMapperInstance(): ResponseMapper
    {
        return new ResponseMapper(new NullLogger());
    }
}