<?php

namespace SilverStripe\Forms\Tests;

use SilverStripe\Dev\SapphireTest;
use SilverStripe\Forms\TextField;
use SilverStripe\Forms\NullableField;

/**
 * Tests the NullableField form field class.
 *
 * @author Pete Bacon Darwin
 */
class NullableFieldTests extends SapphireTest
{

    /**
     * Test that the NullableField works when it wraps a TextField containing actual content
     */
    public function testWithContent()
    {
        $a = new NullableField(new TextField("Field1", "Field 1", "abc"));
        $this->assertEquals("Field1", $a->getName());
        $this->assertEquals("Field 1", $a->Title());
        $this->assertSame("abc", $a->Value());
        $this->assertSame("abc", $a->dataValue());
        $field = $a->Field();
        $this->assertTag(
            [
            'tag'=>'input',
            'id'=>'Field1',
            'attributes'=>['type'=>'text', 'name'=>'Field1', 'value'=>'abc'],
            ],
            $field
        );
        $this->assertTag(
            [
            'tag'=>'input',
            'id'=>'Field1_IsNull',
            'attributes'=>['type'=>'checkbox', 'name'=>'Field1_IsNull', 'value'=>'1'],
            ],
            $field
        );
    }
    /**
     * Test that the NullableField works when it wraps a TextField containing an empty string
     */
    public function testWithEmpty()
    {
        $a = new NullableField(new TextField("Field1", "Field 1", ""));
        $this->assertEquals("Field1", $a->getName());
        $this->assertEquals("Field 1", $a->Title());
        $this->assertSame("", $a->Value());
        $this->assertSame("", $a->dataValue());
        $field = $a->Field();
        $this->assertTag(
            [
            'tag'=>'input',
            'id'=>'Field1',
            'attributes'=>['type'=>'text', 'name'=>'Field1', 'value'=>''],
            ],
            $field
        );
        $this->assertTag(
            [
            'tag'=>'input',
            'id'=>'Field1_IsNull',
            'attributes'=>['type'=>'checkbox', 'name'=>'Field1_IsNull', 'value'=>'1'],
            ],
            $field
        );
    }
    /**
     * Test that the NullableField works when it wraps a TextField containing a null string
     */
    public function testWithNull()
    {
        $a = new NullableField(new TextField("Field1", "Field 1", null));
        $this->assertEquals("Field1", $a->getName());
        $this->assertEquals("Field 1", $a->Title());
        $this->assertSame(null, $a->Value());
        $this->assertSame(null, $a->dataValue());
        $field = $a->Field();
        $this->assertTag(
            [
            'tag'=>'input',
            'id'=>'Field1',
            'attributes'=>['type'=>'text', 'name'=>'Field1', 'value'=>''],
            ],
            $field
        );
        $this->assertTag(
            [
            'tag'=>'input',
            'id'=>'Field1_IsNull',
            'attributes'=>['type'=>'checkbox', 'name'=>'Field1_IsNull', 'value'=>'1', 'checked'=>'checked'],
            ],
            $field
        );
        unset($a);
    }

    /**
     * Test NullableField::setValue works when passed simple values
     */
    public function testSetValueSimple()
    {
        $a = new NullableField(new TextField("Field1", "Field 1"));
        $a->setValue("abc");
        $this->assertSame("abc", $a->dataValue());

        $a = new NullableField(new TextField("Field1", "Field 1"));
        $a->setValue(null);
        $this->assertSame(null, $a->dataValue());

        $a = new NullableField(new TextField("Field1", "Field 1", "abc"));
        $a->setValue(null);
        $this->assertSame(null, $a->dataValue());

        $a = new NullableField(new TextField("Field1", "Field 1", "abc"));
        $a->setValue("xyz");
        $this->assertSame("xyz", $a->dataValue());

        $a = new NullableField(new TextField("Field1", "Field 1"));
        $a->setValue("");
        $this->assertSame("", $a->dataValue());

        $a = new NullableField(new TextField("Field1", "Field 1", "abc"));
        $a->setValue("");
        $this->assertSame("", $a->dataValue());
    }

    /**
     * Test NullableField::setValue works when passed an array values,
     * which happens when the form submits.
     */
    public function testSetValueArray()
    {
        $a = new NullableField(new TextField("Field1", "Field 1"));
        $a->setValue("abc", ["Field1_IsNull"=>false]);
        $this->assertSame("abc", $a->dataValue());

        $a = new NullableField(new TextField("Field1", "Field 1"));
        $a->setValue("", ["Field1_IsNull"=>false]);
        $this->assertSame("", $a->dataValue());

        $a = new NullableField(new TextField("Field1", "Field 1"));
        $a->setValue("", ["Field1_IsNull"=>true]);
        $this->assertSame(null, $a->dataValue());
    }
}