1package main
 2
 3import (
 4	"fmt"
 5	"html"
 6	"net/url"
 7	"strings"
 8
 9	"git.sr.ht/~adnano/go-gemini"
10)
11
12func textToHTML(text gemini.Text) string {
13	var b strings.Builder
14	var pre bool
15	var list bool
16	for _, l := range text {
17		if _, ok := l.(gemini.LineListItem); ok {
18			if !list {
19				list = true
20				fmt.Fprint(&b, "<ul>\n")
21			}
22		} else if list {
23			list = false
24			fmt.Fprint(&b, "</ul>\n")
25		}
26		switch l.(type) {
27		case gemini.LineLink:
28			link := l.(gemini.LineLink)
29			urlstring := html.EscapeString(link.URL)
30			// u = ctx.URL.ResolveReference(u) ?
31			u, err := url.Parse(urlstring)
32			if err != nil {
33				continue
34			}
35			if u.Scheme == "gemini" {
36				u.Path = fmt.Sprintf("/%s%s", u.Host, u.Path)
37				u.Scheme = ""
38				u.Host = "proxy." + c.Host
39				urlstring = html.EscapeString(u.String())
40			}
41			name := html.EscapeString(link.Name)
42			if name == "" {
43				name = urlstring
44			}
45			fmt.Fprintf(&b, "<p><a href='%s'>%s</a></p>\n", urlstring, name)
46		case gemini.LinePreformattingToggle:
47			pre = !pre
48			if pre {
49				altText := string(l.(gemini.LinePreformattingToggle))
50				if altText != "" {
51					altText = html.EscapeString(altText)
52					fmt.Fprintf(&b, "<pre title='%s'>\n", altText)
53				} else {
54					fmt.Fprint(&b, "<pre>\n")
55				}
56			} else {
57				fmt.Fprint(&b, "</pre>\n")
58			}
59		case gemini.LinePreformattedText:
60			text := string(l.(gemini.LinePreformattedText))
61			fmt.Fprintf(&b, "%s\n", html.EscapeString(text))
62		case gemini.LineHeading1:
63			text := string(l.(gemini.LineHeading1))
64			fmt.Fprintf(&b, "<h1>%s</h1>\n", html.EscapeString(text))
65		case gemini.LineHeading2:
66			text := string(l.(gemini.LineHeading2))
67			fmt.Fprintf(&b, "<h2>%s</h2>\n", html.EscapeString(text))
68		case gemini.LineHeading3:
69			text := string(l.(gemini.LineHeading3))
70			fmt.Fprintf(&b, "<h3>%s</h3>\n", html.EscapeString(text))
71		case gemini.LineListItem:
72			text := string(l.(gemini.LineListItem))
73			fmt.Fprintf(&b, "<li>%s</li>\n", html.EscapeString(text))
74		case gemini.LineQuote:
75			text := string(l.(gemini.LineQuote))
76			fmt.Fprintf(&b, "<blockquote>%s</blockquote>\n", html.EscapeString(text))
77		case gemini.LineText:
78			text := string(l.(gemini.LineText))
79			if text == "" {
80				fmt.Fprint(&b, "<br>\n")
81			} else {
82				fmt.Fprintf(&b, "<p>%s</p>\n", html.EscapeString(text))
83			}
84		}
85	}
86	if pre {
87		fmt.Fprint(&b, "</pre>\n")
88	}
89	if list {
90		fmt.Fprint(&b, "</ul>\n")
91	}
92	return b.String()
93}
94
95// Convert a Gemini link to a proxy link
96func proxyLink() {
97}