// Copyright 2016 The Gogs Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package markup_test

import (
	"bytes"
	"strings"
	"testing"

	"github.com/russross/blackfriday"
	. "github.com/smartystreets/goconvey/convey"

	. "github.com/gogs/gogs/pkg/markup"
	"github.com/gogs/gogs/pkg/setting"
)

func Test_IsMarkdownFile(t *testing.T) {
	setting.Markdown.FileExtensions = strings.Split(".md,.markdown,.mdown,.mkd", ",")
	Convey("Detect Markdown file extension", t, func() {
		testCases := []struct {
			ext   string
			match bool
		}{
			{".md", true},
			{".markdown", true},
			{".mdown", true},
			{".mkd", true},
			{".org", false},
			{".rst", false},
			{".asciidoc", false},
		}

		for _, tc := range testCases {
			So(IsMarkdownFile(tc.ext), ShouldEqual, tc.match)
		}
	})
}

func Test_Markdown(t *testing.T) {
	Convey("Rendering an issue URL", t, func() {
		setting.AppURL = "http://localhost:3000/"
		htmlFlags := 0
		htmlFlags |= blackfriday.HTML_SKIP_STYLE
		htmlFlags |= blackfriday.HTML_OMIT_CONTENTS
		renderer := &MarkdownRenderer{
			Renderer: blackfriday.HtmlRenderer(htmlFlags, "", ""),
		}
		buffer := new(bytes.Buffer)
		Convey("To the internal issue tracker", func() {
			Convey("It should render valid issue URLs", func() {
				testCases := []string{
					"http://localhost:3000/user/repo/issues/3333", "<a href=\"http://localhost:3000/user/repo/issues/3333\">#3333</a>",
				}

				for i := 0; i < len(testCases); i += 2 {
					renderer.AutoLink(buffer, []byte(testCases[i]), blackfriday.LINK_TYPE_NORMAL)

					line, _ := buffer.ReadString(0)
					So(line, ShouldEqual, testCases[i+1])
				}
			})
			Convey("It should render but not change non-issue URLs", func() {
				testCases := []string{
					"http://1111/2222/ssss-issues/3333?param=blah&blahh=333", "<a href=\"http://1111/2222/ssss-issues/3333?param=blah&amp;blahh=333\">http://1111/2222/ssss-issues/3333?param=blah&amp;blahh=333</a>",
					"http://test.com/issues/33333", "<a href=\"http://test.com/issues/33333\">http://test.com/issues/33333</a>",
					"http://test.com/issues/3", "<a href=\"http://test.com/issues/3\">http://test.com/issues/3</a>",
					"http://issues/333", "<a href=\"http://issues/333\">http://issues/333</a>",
					"https://issues/333", "<a href=\"https://issues/333\">https://issues/333</a>",
					"http://tissues/0", "<a href=\"http://tissues/0\">http://tissues/0</a>",
				}

				for i := 0; i < len(testCases); i += 2 {
					renderer.AutoLink(buffer, []byte(testCases[i]), blackfriday.LINK_TYPE_NORMAL)

					line, _ := buffer.ReadString(0)
					So(line, ShouldEqual, testCases[i+1])
				}
			})
		})
	})

	Convey("Rendering a commit URL", t, func() {
		setting.AppURL = "http://localhost:3000/"
		htmlFlags := 0
		htmlFlags |= blackfriday.HTML_SKIP_STYLE
		htmlFlags |= blackfriday.HTML_OMIT_CONTENTS
		renderer := &MarkdownRenderer{
			Renderer: blackfriday.HtmlRenderer(htmlFlags, "", ""),
		}
		buffer := new(bytes.Buffer)
		Convey("To the internal issue tracker", func() {
			Convey("It should correctly convert URLs", func() {
				testCases := []string{
					"http://localhost:3000/user/project/commit/d8a994ef243349f321568f9e36d5c3f444b99cae", " <code><a href=\"http://localhost:3000/user/project/commit/d8a994ef243349f321568f9e36d5c3f444b99cae\">d8a994ef24</a></code>",
					"http://localhost:3000/user/project/commit/d8a994ef243349f321568f9e36d5c3f444b99cae#diff-2", " <code><a href=\"http://localhost:3000/user/project/commit/d8a994ef243349f321568f9e36d5c3f444b99cae#diff-2\">d8a994ef24</a></code>",
					"https://external-link.gogs.io/gogs/gogs/commit/d8a994ef243349f321568f9e36d5c3f444b99cae#diff-2", "<a href=\"https://external-link.gogs.io/gogs/gogs/commit/d8a994ef243349f321568f9e36d5c3f444b99cae#diff-2\">https://external-link.gogs.io/gogs/gogs/commit/d8a994ef243349f321568f9e36d5c3f444b99cae#diff-2</a>",
					"https://commit/d8a994ef243349f321568f9e36d5c3f444b99cae", "<a href=\"https://commit/d8a994ef243349f321568f9e36d5c3f444b99cae\">https://commit/d8a994ef243349f321568f9e36d5c3f444b99cae</a>",
				}

				for i := 0; i < len(testCases); i += 2 {
					renderer.AutoLink(buffer, []byte(testCases[i]), blackfriday.LINK_TYPE_NORMAL)

					line, _ := buffer.ReadString(0)
					So(line, ShouldEqual, testCases[i+1])
				}
			})
		})
	})
}
<html>
<head><title>PANIC: session(release): write data/sessions/c/3/c34acbd7f2d27d77: no space left on device</title>
<meta charset="utf-8" />
<style type="text/css">
html, body {
	font-family: "Roboto", sans-serif;
	color: #333333;
	background-color: #ea5343;
	margin: 0px;
}
h1 {
	color: #d04526;
	background-color: #ffffff;
	padding: 20px;
	border-bottom: 1px dashed #2b3848;
}
pre {
	margin: 20px;
	padding: 20px;
	border: 2px solid #2b3848;
	background-color: #ffffff;
	white-space: pre-wrap;       /* css-3 */
	white-space: -moz-pre-wrap;  /* Mozilla, since 1999 */
	white-space: -pre-wrap;      /* Opera 4-6 */
	white-space: -o-pre-wrap;    /* Opera 7 */
	word-wrap: break-word;       /* Internet Explorer 5.5+ */
}
</style>
</head><body>
<h1>PANIC</h1>
<pre style="font-weight: bold;">session(release): write data/sessions/c/3/c34acbd7f2d27d77: no space left on device</pre>
<pre>github.com/go-macaron/session@v0.0.0-20190805070824-1a3cdc6f5659/session.go:199 (0x8b2934)
gopkg.in/macaron.v1@v1.3.9/context.go:79 (0x83d0a0)
github.com/go-macaron/inject@v0.0.0-20160627170012-d8a0b8677191/inject.go:157 (0x80ab07)
github.com/go-macaron/inject@v0.0.0-20160627170012-d8a0b8677191/inject.go:135 (0x80a8a8)
gopkg.in/macaron.v1@v1.3.9/context.go:121 (0x83d1f8)
gopkg.in/macaron.v1@v1.3.9/context.go:112 (0x84fdb5)
gopkg.in/macaron.v1@v1.3.9/recovery.go:161 (0x84fda8)
gopkg.in/macaron.v1@v1.3.9/logger.go:40 (0x840c73)
github.com/go-macaron/inject@v0.0.0-20160627170012-d8a0b8677191/inject.go:157 (0x80ab07)
github.com/go-macaron/inject@v0.0.0-20160627170012-d8a0b8677191/inject.go:135 (0x80a8a8)
gopkg.in/macaron.v1@v1.3.9/context.go:121 (0x83d1f8)
gopkg.in/macaron.v1@v1.3.9/router.go:187 (0x850fc6)
gopkg.in/macaron.v1@v1.3.9/router.go:303 (0x8493e5)
gopkg.in/macaron.v1@v1.3.9/macaron.go:220 (0x841fca)
net/http/server.go:2836 (0x7a79b2)
net/http/server.go:1924 (0x7a341b)
runtime/asm_amd64.s:1373 (0x46f9f0)
</pre>
</body>
</html>