<?php

declare(strict_types=1);

namespace LogseqGem\Tests;

use PHPUnit\Framework\TestCase;
use org\bovigo\vfs\vfsStream;
use org\bovigo\vfs\vfsStreamDirectory;

use LogseqGem\ArticleParser;

class ArticleParserTest extends TestCase {
    private vfsStreamDirectory $root;

    private ArticleParser $parser;

    public function setUp(): void {
        $this->parser = new ArticleParser;
        $this->root = vfsStream::setup();
    }

    private function setArticleText(string $text) {
        vfsStream::newFile('article.md')
            ->withContent($text)
            ->at($this->root);
    }

    public function testConvertSimple() {
        $this->setArticleText("- This is a test line.");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame('This is a test line.', $this->parser->convert());
    }

    public function testConvertLink() {
        $this->setArticleText("- [foo](bar)");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame('=> bar foo', $this->parser->convert());
    }

    public function testMultiParagraph() {
        $this->setArticleText("- Block 1\n- Block 2");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("Block 1\n\nBlock 2", $this->parser->convert());
    }

    public function testEmpty() {
        $this->setArticleText("-");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("", $this->parser->convert());
    }

    public function testInterleavedParagraphsAndLinks() {
        $this->setArticleText("- Block 1\n- [foo](bar)\n- Block 2");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("Block 1\n\n=> bar foo\n\nBlock 2", $this->parser->convert());
    }

    public function testSequentialLinks() {
        $this->setArticleText("\n- [foo](bar)\n- [bar](foo)");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("=> bar foo\n=> foo bar", $this->parser->convert());
    }

    public function testFrontmatter() {
        $this->setArticleText("foo:: bar\nanother:: prop\n\n- first line");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("first line", $this->parser->convert());
        $this->assertSame(["foo" => "bar", "another" => "prop"], $this->parser->getProperties());
    }

    public function testDraftIsNotPublished() {
        $this->setArticleText("status:: draft\n\n- my article");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->parser->convert();
        $this->assertFalse($this->parser->isPublished());
    }

    public function testMissingStatusIsNotPublished() {
        $this->setArticleText("status:: draft\n\n- my article");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->parser->convert();
        $this->assertFalse($this->parser->isPublished());
    }

    public function testPublished() {
        $this->setArticleText("status:: published\n\n- my article");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->parser->convert();
        $this->assertTrue($this->parser->isPublished());
    }

    public function testNewlineBetweenLinks() {
        $this->setArticleText("\n- [foo](bar)\n-\n- [bar](foo)");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("=> bar foo\n\n=> foo bar", $this->parser->convert());
    }

    public function testList() {
        $this->setArticleText("- para\n\t- item 1\n\t- item 2\n- out");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("para\n\n* item 1\n* item 2\n\nout", $this->parser->convert());
    }

    public function testBlockquote() {
        $this->setArticleText("- before\n- > this is a quote\n  it spans 2 lines\n- more");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("before\n\n> this is a quote\n> it spans 2 lines\n\nmore", $this->parser->convert());
    }

    public function testHeadings() {
        $this->setArticleText("- before\n- # h1\n- ## h2\n- ### h3\n- after");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("before\n\n# h1\n\n## h2\n\n### h3\n\nafter", $this->parser->convert());
    }

    public function testPreformatted() {
        $this->setArticleText("- before\n- ```\n  one\n  two\n  ```\n- after");
        $this->parser->load(vfsStream::url('root/article.md'));
        $this->assertSame("before\n\n```\none\ntwo\n```\n\nafter", $this->parser->convert());
    }
}