package classes

import (
	"testing"

	"git.golem15.com/golem15/summercms/modules/pact"
)

// TestParseContentFacts pins what a body says about itself: images with
// alt, decorative (alt present and empty) and size attributes (negative
// and invalid sizes 0), an img without src skipped; YouTube embeds of the
// editor's figure; the heading outline with collapsed text, inline tags
// joined, block children spaced, a no-break space collapsed like any
// other, a heading inside a heading read as part
// of the outer one.
func TestParseContentFacts(t *testing.T) {
	f := parseContentFacts(`<h2>Lwia <em>grzywa</em></h2>
<p><img src=" /m/a.jpg " alt=" Lion's mane " width="800" height="-1"><img src="/m/line.png" alt=""><img alt="no src"><img src="/m/b.jpg" width="x"></p>
<figure data-embed="youtube" data-id="abc123"></figure><figure data-embed="youtube"></figure><figure data-embed="vimeo" data-id="9"></figure>
<h3>Dawkowanie<br>i&nbsp;forma</h3><h4><span>Outer <h5>inner</h5> tail</span></h4><h2></h2>`)
	wantImages := []pact.ContentImage{
		{URL: "/m/a.jpg", Alt: "Lion's mane", Width: 800},
		{URL: "/m/line.png", Decorative: true},
		{URL: "/m/b.jpg"},
	}
	if len(f.images) != len(wantImages) {
		t.Fatalf("images = %+v", f.images)
	}
	for i, w := range wantImages {
		if f.images[i] != w {
			t.Errorf("image %d = %+v, want %+v", i, f.images[i], w)
		}
	}
	if len(f.videos) != 1 || f.videos[0] != (pact.ContentVideo{Provider: "youtube", ID: "abc123"}) {
		t.Fatalf("videos = %+v", f.videos)
	}
	wantHeadings := []pact.ContentHeading{{Level: 2, Text: "Lwia grzywa"}, {Level: 3, Text: "Dawkowanie i forma"}, {Level: 4, Text: "Outer inner tail"}, {Level: 2, Text: ""}}
	if len(f.headings) != len(wantHeadings) {
		t.Fatalf("headings = %+v", f.headings)
	}
	for i, w := range wantHeadings {
		if f.headings[i] != w {
			t.Errorf("heading %d = %+v, want %+v", i, f.headings[i], w)
		}
	}
}

// TestParseContentFactsEmpty pins an empty body and the category pillar
// text read the same way (headings only).
func TestParseContentFactsEmpty(t *testing.T) {
	if f := parseContentFacts("  "); f.images != nil || f.videos != nil || f.headings != nil {
		t.Fatalf("blank = %+v", f)
	}
	pillar := parseContentFacts("<p>Intro</p><h2>Gatunki</h2><h4>Skipped</h4>")
	if len(pillar.headings) != 2 || pillar.headings[1].Level != 4 {
		t.Fatalf("pillar = %+v", pillar.headings)
	}
}

// TestTopHeading pins the record's highest heading level: 2 while the
// H1 setting turns body H1s into H2s, 0 (any) otherwise.
func TestTopHeading(t *testing.T) {
	if topHeading(true) != 2 || topHeading(false) != 0 {
		t.Fatal("topHeading is wrong")
	}
	if toolUpdatePost != "journal_update_post" || toolFixHeadings != "journal_fix_headings" || toolSetImageAlt != "journal_set_image_alt" {
		t.Fatal("the descriptor's tool names changed")
	}
}