<?php

namespace JsonMachineTest;

use JsonMachine\JsonDecoder\PassThruDecoder;
use JsonMachine\Items;

class ItemsTest extends \PHPUnit_Framework_TestCase
{
    /**
     * @dataProvider dataFactories
     */
    public function testFactories($expected, $methodName, ...$args)
    {
        $iterator = call_user_func_array(Items::class."::$methodName", [
            $args[0],
            [
                'pointer' => $args[1],
                'decoder' => $args[2],
                'debug' => $args[3],
            ]
        ]);
        $this->assertSame($expected, iterator_to_array($iterator));
    }

    public function dataFactories()
    {
        $extJsonResult = ['key' => 'value'];
        $passThruResult = ['key' => '"value"'];
        $ptDecoder = new PassThruDecoder();

        foreach ([true, false] as $debug) {
            foreach ([
                [$extJsonResult, 'fromStream', fopen('data://text/plain,{"path": {"key":"value"}}', 'r'), '/path', null, $debug],
                [$extJsonResult, 'fromString', '{"path": {"key":"value"}}', '/path', null, $debug],
                [$extJsonResult, 'fromFile', __DIR__ . '/JsonMachineTest.json', '/path', null, $debug],
                [$extJsonResult, 'fromIterable', ['{"path": {"key', '":"value"}}'], '/path', null, $debug],
                [$extJsonResult, 'fromIterable', new \ArrayIterator(['{"path": {"key', '":"value"}}']), '/path', null, $debug],

                [$passThruResult, 'fromStream', fopen('data://text/plain,{"path": {"key":"value"}}', 'r'), '/path', $ptDecoder, $debug],
                [$passThruResult, 'fromString', '{"path": {"key":"value"}}', '/path', $ptDecoder, $debug],
                [$passThruResult, 'fromFile', __DIR__ . '/JsonMachineTest.json', '/path', $ptDecoder, $debug],
                [$passThruResult, 'fromIterable', ['{"path": {"key', '":"value"}}'], '/path', $ptDecoder, $debug],
                [$passThruResult, 'fromIterable', new \ArrayIterator(['{"path": {"key', '":"value"}}']), '/path', $ptDecoder, $debug],
            ] as $case) {
                yield $case;
            }
        }
    }

    public function testGetPositionDebugEnabled()
    {
        $expectedPosition = ['key1' => 10, 'key2' => 20];
        $items = Items::fromString('{"key1":1, "key2":2}    ', ['debug' => true]);
        foreach ($items as $key => $val) {
            $this->assertSame($expectedPosition[$key], $items->getPosition());
        }
    }

    public function testIterationWithoutForeach()
    {
        $iterator =
            Items::fromString('{"key1":1, "key2":2}')
            ->getIterator();

        $iterator->rewind();
        $this->assertTrue($iterator->valid());
        $this->assertSame(['key1', 1], [$iterator->key(), $iterator->current()]);
        $iterator->next();
        $this->assertTrue($iterator->valid());
        $this->assertSame(['key2', 2], [$iterator->key(), $iterator->current()]);
        $iterator->next();
        $this->assertFalse($iterator->valid());
    }
}