//
//  GeminiHTMLRendererTests.swift
//  GeminiRendererTests
//
//  Created by Shadowfacts on 10/1/21.
//

import XCTest
import GeminiFormat
@testable import GeminiRenderer

class GeminiHTMLRendererTests: XCTestCase {
    
    private var doc: Document!

    override func setUp() {
        doc = Document(url: URL(string: "gemini://example.com/")!)
    }
    
    func testEscapeToEntities() {
        doc.lines = [.text("<b>hello</b>")]
        let html = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<p>&#x3C;b&#x3E;hello&#x3C;/b&#x3E;</p>")
    }

    func testParagraph() {
        doc.lines = [.text("Hello, world!")]
        let html = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<p>Hello, world!</p>")
    }
    
    func testLink() {
        doc.lines = [.link(URL(string: "gemini://example.com/")!, text: "text")]
        let html = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<p class=\"link\"><a href=\"gemini://example.com/\">text</a></p>")
        
        doc.lines = [.link(URL(string: "gemini://example.com/")!, text: nil)]
        let noText = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(noText, "<p class=\"link\"><a href=\"gemini://example.com/\">gemini://example.com/</a></p>")
    }
    
    func testDisableLinkClass() {
        doc.lines = [.link(URL(string: "gemini://example.com/")!, text: "test")]
        let renderer = GeminiHTMLRenderer()
        renderer.addLinkClass = false
        let html = renderer.renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<p><a href=\"gemini://example.com/\">test</a></p>")
    }
    
    func testPreformatting() {
        doc.lines = [
            .preformattedToggle(alt: nil),
            .preformattedText("foo"),
            .preformattedText("* bar"),
            .preformattedToggle(alt: nil),
        ]
        let html = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<pre>foo\n* bar\n</pre>")
    }
    
    func testHeading() {
        doc.lines = [
            .heading("One", level: .h1),
            .heading("Two", level: .h2),
        ]
        let html = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<h1 id=\"l0\">One</h1><h2 id=\"l1\">Two</h2>")
    }
    
    func testDisableHeadingIDs() {
        doc.lines = [
            .heading("One", level: .h1),
            .heading("Two", level: .h2),
        ]
        let renderer = GeminiHTMLRenderer()
        renderer.addHeadingLineIDs = false
        let html = renderer.renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<h1>One</h1><h2>Two</h2>")
    }
    
    func testUnorderedList() {
        doc.lines = [
            .text("before"),
            .unorderedListItem("a"),
            .unorderedListItem("b"),
            .unorderedListItem("c"),
            .text("after"),
        ]
        let html = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<p>before</p><ul><li>a</li><li>b</li><li>c</li></ul><p>after</p>")
    }
    
    func testQuote() {
        doc.lines = [
            .quote("quoted")
        ]
        let html = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<blockquote>quoted</blockquote>")
    }
    
    func testStuffAfterList() {
        doc.lines = [
            .unorderedListItem("a"),
            .unorderedListItem("b"),
            .text("c"),
            .text("d"),
        ]
        let html = GeminiHTMLRenderer().renderDocumentToHTML(doc)
        XCTAssertEqual(html, "<ul><li>a</li><li>b</li></ul><p>c</p><p>d</p>")
    }

}