<?php

use Codeception\Util\Fixtures;
use Grav\Common\Grav;
use Grav\Common\GPM\GPM;

define('EXCEPTION_BAD_FORMAT', 1);
define('EXCEPTION_INCOMPATIBLE_VERSIONS', 2);

/**
 * Class GpmStub
 */
class GpmStub extends GPM
{
    /** @var array */
    public $data;

    /**
     * @inheritdoc
     */
    public function findPackage($search, $ignore_exception = false)
    {
        return $this->data[$search] ?? false;
    }

    /**
     * @inheritdoc
     */
    public function findPackages($searches = [])
    {
        return $this->data;
    }
}

/**
 * Class InstallCommandTest
 */
class GpmTest extends \Codeception\TestCase\Test
{
    /** @var Grav $grav */
    protected $grav;

    /** @var GpmStub */
    protected $gpm;

    protected function _before(): void
    {
        $this->grav = Fixtures::get('grav');
        $this->gpm = new GpmStub();
    }

    protected function _after(): void
    {
    }

    public function testCalculateMergedDependenciesOfPackages(): void
    {
        //////////////////////////////////////////////////////////////////////////////////////////
        // First working example
        //////////////////////////////////////////////////////////////////////////////////////////
        $this->gpm->data = [
            'admin' => (object)[
                'dependencies' => [
                    ['name' => 'grav', 'version' => '>=1.0.10'],
                    ['name' => 'form', 'version' => '~2.0'],
                    ['name' => 'login', 'version' => '>=2.0'],
                    ['name' => 'errors', 'version' => '*'],
                    ['name' => 'problems'],
                ]
            ],
            'test' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '>=1.0']
                ]
            ],
            'grav',
            'form' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '>=3.2']
                ]
            ]


        ];

        $packages = ['admin', 'test'];

        $dependencies = $this->gpm->calculateMergedDependenciesOfPackages($packages);

        self::assertIsArray($dependencies);
        self::assertCount(5, $dependencies);

        self::assertSame('>=1.0.10', $dependencies['grav']);
        self::assertArrayHasKey('errors', $dependencies);
        self::assertArrayHasKey('problems', $dependencies);

        //////////////////////////////////////////////////////////////////////////////////////////
        // Second working example
        //////////////////////////////////////////////////////////////////////////////////////////
        $packages = ['admin', 'form'];

        $dependencies = $this->gpm->calculateMergedDependenciesOfPackages($packages);
        self::assertIsArray($dependencies);
        self::assertCount(5, $dependencies);
        self::assertSame('>=3.2', $dependencies['errors']);

        //////////////////////////////////////////////////////////////////////////////////////////
        // Third working example
        //////////////////////////////////////////////////////////////////////////////////////////
        $this->gpm->data = [

            'admin' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '>=4.0'],
                ]
            ],
            'test' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '>=1.0']
                ]
            ],
            'another' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '>=3.2']
                ]
            ]

        ];

        $packages = ['admin', 'test', 'another'];


        $dependencies = $this->gpm->calculateMergedDependenciesOfPackages($packages);
        self::assertIsArray($dependencies);
        self::assertCount(1, $dependencies);
        self::assertSame('>=4.0', $dependencies['errors']);


        //////////////////////////////////////////////////////////////////////////////////////////
        // Test alpha / beta / rc
        //////////////////////////////////////////////////////////////////////////////////////////
        $this->gpm->data = [
            'admin' => (object)[
                'dependencies' => [
                    ['name' => 'package1', 'version' => '>=4.0.0-rc1'],
                    ['name' => 'package4', 'version' => '>=3.2.0'],
                ]
            ],
            'test' => (object)[
                'dependencies' => [
                    ['name' => 'package1', 'version' => '>=4.0.0-rc2'],
                    ['name' => 'package2', 'version' => '>=3.2.0-alpha'],
                    ['name' => 'package3', 'version' => '>=3.2.0-alpha.2'],
                    ['name' => 'package4', 'version' => '>=3.2.0-alpha'],
                ]
            ],
            'another' => (object)[
                'dependencies' => [
                    ['name' => 'package2', 'version' => '>=3.2.0-beta.11'],
                    ['name' => 'package3', 'version' => '>=3.2.0-alpha.1'],
                    ['name' => 'package4', 'version' => '>=3.2.0-beta'],
                ]
            ]
        ];

        $packages = ['admin', 'test', 'another'];


        $dependencies = $this->gpm->calculateMergedDependenciesOfPackages($packages);
        self::assertSame('>=4.0.0-rc2', $dependencies['package1']);
        self::assertSame('>=3.2.0-beta.11', $dependencies['package2']);
        self::assertSame('>=3.2.0-alpha.2', $dependencies['package3']);
        self::assertSame('>=3.2.0', $dependencies['package4']);


        //////////////////////////////////////////////////////////////////////////////////////////
        // Raise exception if no version is specified
        //////////////////////////////////////////////////////////////////////////////////////////
        $this->gpm->data = [

            'admin' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '>=4.0'],
                ]
            ],
            'test' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '>=']
                ]
            ],

        ];

        $packages = ['admin', 'test'];

        try {
            $this->gpm->calculateMergedDependenciesOfPackages($packages);
            self::fail('Expected Exception not thrown');
        } catch (Exception $e) {
            self::assertEquals(EXCEPTION_BAD_FORMAT, $e->getCode());
            self::assertStringStartsWith('Bad format for version of dependency', $e->getMessage());
        }

        //////////////////////////////////////////////////////////////////////////////////////////
        // Raise exception if incompatible versions are specified
        //////////////////////////////////////////////////////////////////////////////////////////
        $this->gpm->data = [
            'admin' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '~4.0'],
                ]
            ],
            'test' => (object)[
                'dependencies' => [
                    ['name' => 'errors', 'version' => '~3.0']
                ]
            ],
        ];

        $packages = ['admin', 'test'];

        try {
            $this->gpm->calculateMergedDependenciesOfPackages($packages);
            self::fail('Expected Exception not thrown');
        } catch (Exception $e) {
            self::assertEquals(EXCEPTION_INCOMPATIBLE_VERSIONS, $e->getCode());
            self::assertStringEndsWith('required in two incompatible versions', $e->getMessage());
        }

        //////////////////////////////////////////////////////////////////////////////////////////
        // Test dependencies of dependencies
        //////////////////////////////////////////////////////////////////////////////////////////
        $this->gpm->data = [
            'admin' => (object)[
                'dependencies' => [
                    ['name' => 'grav', 'version' => '>=1.0.10'],
                    ['name' => 'form', 'version' => '~2.0'],
                    ['name' => 'login', 'version' => '>=2.0'],
                    ['name' => 'errors', 'version' => '*'],
                    ['name' => 'problems'],
                ]
            ],
            'login' => (object)[
                'dependencies' => [
                    ['name' => 'antimatter', 'version' => '>=1.0']
                ]
            ],
            'grav',
            'antimatter' => (object)[
                'dependencies' => [
                    ['name' => 'something', 'version' => '>=3.2']
                ]
            ]


        ];

        $packages = ['admin'];

        $dependencies = $this->gpm->calculateMergedDependenciesOfPackages($packages);

        self::assertIsArray($dependencies);
        self::assertCount(7, $dependencies);

        self::assertSame('>=1.0.10', $dependencies['grav']);
        self::assertArrayHasKey('errors', $dependencies);
        self::assertArrayHasKey('problems', $dependencies);
        self::assertArrayHasKey('antimatter', $dependencies);
        self::assertArrayHasKey('something', $dependencies);
        self::assertSame('>=3.2', $dependencies['something']);
    }

    public function testVersionFormatIsNextSignificantRelease(): void
    {
        self::assertFalse($this->gpm->versionFormatIsNextSignificantRelease('>=1.0'));
        self::assertFalse($this->gpm->versionFormatIsNextSignificantRelease('>=2.3.4'));
        self::assertFalse($this->gpm->versionFormatIsNextSignificantRelease('>=2.3.x'));
        self::assertFalse($this->gpm->versionFormatIsNextSignificantRelease('1.0'));
        self::assertTrue($this->gpm->versionFormatIsNextSignificantRelease('~2.3.x'));
        self::assertTrue($this->gpm->versionFormatIsNextSignificantRelease('~2.0'));
    }

    public function testVersionFormatIsEqualOrHigher(): void
    {
        self::assertTrue($this->gpm->versionFormatIsEqualOrHigher('>=1.0'));
        self::assertTrue($this->gpm->versionFormatIsEqualOrHigher('>=2.3.4'));
        self::assertTrue($this->gpm->versionFormatIsEqualOrHigher('>=2.3.x'));
        self::assertFalse($this->gpm->versionFormatIsEqualOrHigher('~2.3.x'));
        self::assertFalse($this->gpm->versionFormatIsEqualOrHigher('1.0'));
    }

    public function testCheckNextSignificantReleasesAreCompatible(): void
    {
        /*
         * ~1.0     is equivalent to >=1.0 < 2.0.0
         * ~1.2     is equivalent to >=1.2 <2.0.0
         * ~1.2.3   is equivalent to >=1.2.3 <1.3.0
         */
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('1.0', '1.2'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('1.2', '1.0'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('1.0', '1.0.10'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('1.1', '1.1.10'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('30.0', '30.10'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('1.0', '1.1.10'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('1.0', '1.8'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('1.0.1', '1.1'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('2.0.0-beta', '2.0'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('2.0.0-rc.1', '2.0'));
        self::assertTrue($this->gpm->checkNextSignificantReleasesAreCompatible('2.0', '2.0.0-alpha'));

        self::assertFalse($this->gpm->checkNextSignificantReleasesAreCompatible('1.0', '2.2'));
        self::assertFalse($this->gpm->checkNextSignificantReleasesAreCompatible('1.0.0-beta.1', '2.0'));
        self::assertFalse($this->gpm->checkNextSignificantReleasesAreCompatible('0.9.99', '1.0.0'));
        self::assertFalse($this->gpm->checkNextSignificantReleasesAreCompatible('0.9.99', '1.0.10'));
        self::assertFalse($this->gpm->checkNextSignificantReleasesAreCompatible('0.9.99', '1.0.10.2'));
    }

    public function testCalculateVersionNumberFromDependencyVersion(): void
    {
        self::assertSame('2.0', $this->gpm->calculateVersionNumberFromDependencyVersion('>=2.0'));
        self::assertSame('2.0.2', $this->gpm->calculateVersionNumberFromDependencyVersion('>=2.0.2'));
        self::assertSame('2.0.2', $this->gpm->calculateVersionNumberFromDependencyVersion('~2.0.2'));
        self::assertSame('1', $this->gpm->calculateVersionNumberFromDependencyVersion('~1'));
        self::assertNull($this->gpm->calculateVersionNumberFromDependencyVersion(''));
        self::assertNull($this->gpm->calculateVersionNumberFromDependencyVersion('*'));
        self::assertSame('2.0.2', $this->gpm->calculateVersionNumberFromDependencyVersion('2.0.2'));
    }
}