class ConfigTargetTest

class ConfigTargetTest extends UnitTestCase {
    
    /**
     * @covers \Drupal\Core\Form\ConfigFormBase::storeConfigKeyToFormElementMap
     */
    public function testDuplicateTargetsNotAllowed() : void {
        $form = [
            'test' => [
                '#type' => 'text',
                '#default_value' => 'A test',
                '#config_target' => new ConfigTarget('system.site', 'admin_compact_mode', 'intval', 'boolval'),
                '#name' => 'test',
                '#array_parents' => [
                    'test',
                ],
            ],
            'duplicate' => [
                '#type' => 'text',
                '#config_target' => new ConfigTarget('system.site', 'admin_compact_mode', 'intval', 'boolval'),
                '#name' => 'duplicate',
                '#array_parents' => [
                    'duplicate',
                ],
            ],
        ];
        $test_form = new class ($this->prophesize(ConfigFactoryInterface::class)
            ->reveal(), $this->prophesize(TypedConfigManagerInterface::class)
            ->reveal()) extends ConfigFormBase {
            use RedundantEditableConfigNamesTrait;
            public function getFormId() {
                return 'test';
            }

};
        $form_state = new FormState();
        $this->expectException(\LogicException::class);
        $this->expectExceptionMessage('Two #config_targets both target "admin_compact_mode" in the "system.site" config: `$form[\'test\']` and `$form[\'duplicate\']`.');
        $test_form->storeConfigKeyToFormElementMap($form, $form_state);
    }
    
    /**
     * @covers \Drupal\Core\Form\ConfigFormBase::storeConfigKeyToFormElementMap
     * @dataProvider providerTestFormCacheable
     */
    public function testFormCacheable(bool $expected, ?callable $fromConfig, ?callable $toConfig) : void {
        $form = [
            'test' => [
                '#type' => 'text',
                '#default_value' => 'A test',
                '#config_target' => new ConfigTarget('system.site', 'admin_compact_mode', $fromConfig, $toConfig),
                '#name' => 'test',
                '#array_parents' => [
                    'test',
                ],
            ],
        ];
        $test_form = new class ($this->prophesize(ConfigFactoryInterface::class)
            ->reveal(), $this->prophesize(TypedConfigManagerInterface::class)
            ->reveal()) extends ConfigFormBase {
            use RedundantEditableConfigNamesTrait;
            public function getFormId() {
                return 'test';
            }

};
        $form_state = new FormState();
        // Make the form cacheable.
        $form_state->setRequestMethod('POST')
            ->setCached();
        $test_form->storeConfigKeyToFormElementMap($form, $form_state);
        $this->assertSame($expected, $form_state->isCached());
    }
    public static function providerTestFormCacheable() : array {
        $closure = fn(bool $something): string => $something ? 'Yes' : 'No';
        return [
            'No callables' => [
                TRUE,
                NULL,
                NULL,
            ],
            'Serializable fromConfig callable' => [
                TRUE,
                "intval",
                NULL,
            ],
            'Serializable toConfig callable' => [
                TRUE,
                NULL,
                "boolval",
            ],
            'Serializable callables' => [
                TRUE,
                "intval",
                "boolval",
            ],
            'Unserializable fromConfig callable' => [
                FALSE,
                $closure,
                NULL,
            ],
            'Unserializable toConfig callable' => [
                FALSE,
                NULL,
                $closure,
            ],
            'Unserializable callables' => [
                FALSE,
                $closure,
                $closure,
            ],
        ];
    }
    
    /**
     * @covers ::fromForm
     * @covers ::fromString
     */
    public function testFromFormString() : void {
        $form = [
            'group' => [
                '#type' => 'details',
                'test' => [
                    '#type' => 'text',
                    '#default_value' => 'A test',
                    '#config_target' => 'system.site:name',
                    '#name' => 'test',
                    '#parents' => [
                        'test',
                    ],
                ],
            ],
        ];
        $config_target = ConfigTarget::fromForm([
            'group',
            'test',
        ], $form);
        $this->assertSame('system.site', $config_target->configName);
        $this->assertSame([
            'name',
        ], $config_target->propertyPaths);
        $this->assertSame([
            'test',
        ], $config_target->elementParents);
    }
    
    /**
     * @covers ::fromForm
     */
    public function testFromFormConfigTarget() : void {
        $form = [
            'test' => [
                '#type' => 'text',
                '#default_value' => 'A test',
                '#config_target' => new ConfigTarget('system.site', 'admin_compact_mode', 'intval', 'boolval'),
                '#name' => 'test',
                '#parents' => [
                    'test',
                ],
            ],
        ];
        $config_target = ConfigTarget::fromForm([
            'test',
        ], $form);
        $this->assertSame('system.site', $config_target->configName);
        $this->assertSame([
            'admin_compact_mode',
        ], $config_target->propertyPaths);
        $this->assertSame([
            'test',
        ], $config_target->elementParents);
        $this->assertSame(1, ($config_target->fromConfig)(TRUE));
        $this->assertFalse(($config_target->toConfig)('0'));
    }
    
    /**
     * @covers ::fromForm
     * @dataProvider providerTestFromFormException
     */
    public function testFromFormException(array $form, array $array_parents, string $exception_message) : void {
        $this->expectException(\LogicException::class);
        $this->expectExceptionMessage($exception_message);
        ConfigTarget::fromForm($array_parents, $form);
    }
    public static function providerTestFromFormException() : array {
        return [
            'No #config_target' => [
                [
                    'test' => [
                        '#type' => 'text',
                        '#default_value' => 'A test',
                    ],
                ],
                [
                    'test',
                ],
                'The form element [test] does not have the #config_target property set',
            ],
            'No #config_target nested' => [
                [
                    'group' => [
                        '#type' => 'details',
                        'test' => [
                            '#type' => 'text',
                            '#default_value' => 'A test',
                        ],
                    ],
                ],
                [
                    'group',
                    'test',
                ],
                'The form element [group][test] does not have the #config_target property set',
            ],
            'Boolean #config_target nested' => [
                [
                    'group' => [
                        '#type' => 'details',
                        'test' => [
                            '#type' => 'text',
                            '#config_target' => FALSE,
                            '#default_value' => 'A test',
                        ],
                    ],
                ],
                [
                    'group',
                    'test',
                ],
                'The form element [group][test] #config_target property is not a string or a ConfigTarget object',
            ],
        ];
    }
    
    /**
     * @dataProvider providerMultiTargetWithoutCallables
     */
    public function testMultiTargetWithoutCallables(...$arguments) : void {
        $this->expectException(\LogicException::class);
        $this->expectExceptionMessage('The $fromConfig and $toConfig arguments must be passed to Drupal\\Core\\Form\\ConfigTarget::__construct() if multiple property paths are targeted.');
        new ConfigTarget(...$arguments);
    }
    public static function providerMultiTargetWithoutCallables() : \Generator {
        (yield "neither callable" => [
            'foo.settings',
            [
                'a',
                'b',
            ],
        ]);
        (yield "only fromConfig" => [
            'foo.settings',
            [
                'a',
                'b',
            ],
            "intval",
        ]);
        (yield "only toConfig" => [
            'foo.settings',
            [
                'a',
                'b',
            ],
            NULL,
            "intval",
        ]);
    }
    public function testGetValueCorrectConfig() : void {
        $sut = new ConfigTarget('foo.settings', $this->randomMachineName());
        $config = $this->prophesize(Config::class);
        $config->getName()
            ->willReturn('bar.settings');
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Config target is associated with foo.settings but bar.settings given.');
        $sut->getValue($config->reveal());
    }
    public function testSetValueCorrectConfig() : void {
        $sut = new ConfigTarget('foo.settings', $this->randomMachineName());
        $config = $this->prophesize(Config::class);
        $config->getName()
            ->willReturn('bar.settings');
        $this->expectException(\InvalidArgumentException::class);
        $this->expectExceptionMessage('Config target is associated with foo.settings but bar.settings given.');
        $sut->setValue($config->reveal(), $this->randomString(), $this->prophesize(FormStateInterface::class)
            ->reveal());
    }
    public function testSingleTarget() : void {
        $config_target = new ConfigTarget('foo.settings', 'something', fromConfig: fn(bool $something): string => $something ? 'Yes' : 'No', toConfig: fn(string $form_value): ToConfig|bool => match ($form_value) {    'Yes' => TRUE,
            '<test:noop>' => ToConfig::NoOp,
            '<test:delete>' => ToConfig::DeleteKey,
            default => FALSE,
        
        });
        // Assert the logic in the callables works as expected.
        $this->assertSame("Yes", ($config_target->fromConfig)(TRUE));
        $this->assertSame("No", ($config_target->fromConfig)(FALSE));
        $this->assertTrue(($config_target->toConfig)("Yes"));
        $this->assertFalse(($config_target->toConfig)("No"));
        $this->assertFalse(($config_target->toConfig)("some random string"));
        $this->assertSame(ToConfig::NoOp, ($config_target->toConfig)("<test:noop>"));
        $this->assertSame(ToConfig::DeleteKey, ($config_target->toConfig)("<test:delete>"));
        // Now simulate how this will be used in the form, and ensure it results in
        // the expected Config::set() calls.
        $config = $this->prophesize(Config::class);
        $config->getName()
            ->willReturn('foo.settings');
        // First to transform the stored config value to the form value.
        $config->get('something')
            ->willReturn(TRUE);
        $this->assertSame("Yes", $config_target->getValue($config->reveal()));
        // Then to transform the modified form value back to config.
        $config->set('something', TRUE)
            ->shouldBeCalledTimes(1);
        $config_target->setValue($config->reveal(), 'Yes', $this->prophesize(FormStateInterface::class)
            ->reveal());
        // Repeat, but for the other possible value.
        $config->get('something')
            ->willReturn(FALSE);
        $this->assertSame("No", $config_target->getValue($config->reveal()));
        $config->set('something', FALSE)
            ->shouldBeCalledTimes(1);
        $config_target->setValue($config->reveal(), 'No', $this->prophesize(FormStateInterface::class)
            ->reveal());
        // Test `ToConfig::NoOp`: nothing should happen to the Config.
        $config = $this->prophesize(Config::class);
        $config->getName()
            ->willReturn('foo.settings');
        $config->set('something', Argument::any())
            ->shouldBeCalledTimes(0);
        $config->clear('something', Argument::any())
            ->shouldBeCalledTimes(0);
        $config_target->setValue($config->reveal(), '<test:noop>', $this->prophesize(FormStateInterface::class)
            ->reveal());
        // Test `ToConfig::DeleteKey`: Config::clear() should be called.
        $config = $this->prophesize(Config::class);
        $config->getName()
            ->willReturn('foo.settings');
        $config->clear('something')
            ->shouldBeCalledTimes(1);
        $config_target->setValue($config->reveal(), '<test:delete>', $this->prophesize(FormStateInterface::class)
            ->reveal());
    }
    public function testMultiTarget() : void {
        $config_target = new ConfigTarget('foo.settings', [
            'first',
            'second',
        ], fromConfig: fn(int $first, int $second): string => "{$first}|{$second}", toConfig: fn(string $form_value): array => [
            'first' => intval(explode('|', $form_value)[0]),
            'second' => intval(explode('|', $form_value)[1]),
        ]);
        // Assert the logic in the callables works as expected.
        $this->assertSame("42|-4", ($config_target->fromConfig)(42, -4));
        $this->assertSame([
            'first' => 9,
            'second' => 19,
        ], ($config_target->toConfig)("9|19"));
        // Now simulate how this will be used in the form, and ensure it results in
        // the expected Config::set() calls.
        $config = $this->prophesize(Config::class);
        $config->getName()
            ->willReturn('foo.settings');
        // First to transform the stored config value to the form value.
        $config->get('first')
            ->willReturn(-17);
        $config->get('second')
            ->willReturn(71);
        $this->assertSame("-17|71", $config_target->getValue($config->reveal()));
        // Then to transform the modified form value back to config.
        $config->set('first', 1988)
            ->shouldBeCalledTimes(1);
        $config->set('second', 1992)
            ->shouldBeCalledTimes(1);
        $config_target->setValue($config->reveal(), '1988|1992', $this->prophesize(FormStateInterface::class)
            ->reveal());
    }
    
    /**
     * @testWith ["this string was returned by toConfig", "The toConfig callable returned a string, but it must be an array with a key-value pair for each of the targeted property paths."]
     *           [true, "The toConfig callable returned a boolean, but it must be an array with a key-value pair for each of the targeted property paths."]
     *           [42, "The toConfig callable returned a integer, but it must be an array with a key-value pair for each of the targeted property paths."]
     *           [[], "The toConfig callable returned an array that is missing key-value pairs for the following targeted property paths: first, second."]
     *           [{"yar": 42}, "The toConfig callable returned an array that is missing key-value pairs for the following targeted property paths: first, second."]
     *           [{"FIRST": 42, "SECOND": 1337}, "The toConfig callable returned an array that is missing key-value pairs for the following targeted property paths: first, second."]
     *           [{"second": 42}, "The toConfig callable returned an array that is missing key-value pairs for the following targeted property paths: first."]
     *           [{"first": 42}, "The toConfig callable returned an array that is missing key-value pairs for the following targeted property paths: second."]
     *           [{"first": 42, "second": 1337, "yar": "har"}, "The toConfig callable returned an array that contains key-value pairs that do not match targeted property paths: yar."]
     */
    public function testSetValueMultiTargetToConfigReturnValue(mixed $toConfigReturnValue, string $expected_exception_message) : void {
        $config_target = new ConfigTarget('foo.settings', [
            'first',
            'second',
        ], fromConfig: fn(int $first, int $second): string => "{$first}|{$second}", toConfig: fn(): mixed => $toConfigReturnValue);
        $config = $this->prophesize(Config::class);
        $config->getName()
            ->willReturn('foo.settings');
        $this->expectException(\LogicException::class);
        $this->expectExceptionMessage($expected_exception_message);
        $config_target->setValue($config->reveal(), '1988|1992', $this->prophesize(FormStateInterface::class)
            ->reveal());
    }

}