<?php
namespace Fenom;

class MacrosTest extends TestCase
{

    public function setUp()
    {
        parent::setUp();
        $this->tpl("math.tpl", '
        {macro plus(x, y)}
            x + y = {$x + $y}
        {/macro}

        {macro minus(x, y, z=0)}
            x - y - z = {$x - $y - $z}
        {/macro}

        {macro multi(x, y)}
            x * y = {$x * $y}
        {/macro}

        Math: {macro.plus x=2 y=3}, {macro.minus x=10 y=4}
        ');

        $this->tpl("import.tpl", '
        {import "math.tpl"}
        {import "math.tpl" as math}

        Imp: {macro.plus x=1 y=2}, {math.minus x=6 y=2 z=1}
        ');

        $this->tpl("import_custom.tpl", '
        {macro minus(x, y)}
            new minus macros
        {/macro}
        {import [plus, minus] from "math.tpl" as math}

        a: {math.plus x=1 y=2}, {math.minus x=6 y=2 z=1}, {macro.minus x=5 y=3}.
        ');

        $this->tpl("import_miss.tpl", '
        {import [minus] from "math.tpl" as math}

        a: {macro.plus x=5 y=3}.
        ');

        $this->tpl("macro_recursive.tpl", '{macro factorial(num)}
            {if $num}
                {$num} {macro.factorial num=$num-1}
            {/if}
        {/macro}

        {macro.factorial num=10}');
    }

    public function _testSandbox()
    {
        try {
            $this->fenom->compile("macro_recursive.tpl");
            $this->fenom->flush();
            var_dump($this->fenom->fetch("macro_recursive.tpl", []));
        } catch (\Exception $e) {
            var_dump($e->getMessage() . ": " . $e->getTraceAsString());
        }
        exit;
    }

    public function testMacros()
    {
        $tpl = $this->fenom->compile('math.tpl');

        $this->assertStringStartsWith('x + y = ', trim($tpl->macros["plus"]["body"]));
        $this->assertSame('Math: x + y = 5 , x - y - z = 6', Modifier::strip($tpl->fetch(array()), true));
    }

    public function testImport()
    {
        $tpl = $this->fenom->compile('import.tpl');

        $this->assertSame('Imp: x + y = 3 , x - y - z = 3', Modifier::strip($tpl->fetch(array()), true));
    }

    public function testImportCustom()
    {
        $tpl = $this->fenom->compile('import_custom.tpl');

        $this->assertSame('a: x + y = 3 , x - y - z = 3 , new minus macros .', Modifier::strip($tpl->fetch(array()), true));
    }

    /**
     * @expectedExceptionMessage Undefined macro 'plus'
     * @expectedException \Fenom\CompileException
     */
    public function testImportMiss()
    {
        $tpl = $this->fenom->compile('import_miss.tpl');

        $this->assertSame('a: x + y = 3 , x - y - z = 3 , new minus macros .', Modifier::strip($tpl->fetch(array()), true));
    }

    public function testRecursive()
    {
        $this->fenom->compile('macro_recursive.tpl');
        $this->fenom->flush();
        $tpl = $this->fenom->getTemplate('macro_recursive.tpl');
        $this->assertSame("10 9 8 7 6 5 4 3 2 1", Modifier::strip($tpl->fetch(array()), true));
    }
}