render.gno

  1package users
  2
  3import (
  4	"gno.land/p/moul/md"
  5	"gno.land/p/moul/realmpath"
  6	"gno.land/p/moul/txlink"
  7	"gno.land/p/nt/ufmt"
  8
  9	"gno.land/r/demo/profile"
 10	susers "gno.land/r/sys/users"
 11)
 12
 13func Render(path string) string {
 14	req := realmpath.Parse(path)
 15
 16	if req.Path == "" {
 17		return renderHomePage()
 18	}
 19
 20	// Otherwise, render the user page
 21	return renderUserPage(req.Path)
 22}
 23
 24func renderHomePage() string {
 25	var out string
 26
 27	out += "# Gno.land User Registry\n"
 28
 29	if paused {
 30		out += md.HorizontalRule()
 31		out += md.H2("This realm is paused.")
 32		out += md.Paragraph("Check out [`gno.land/r/gnoland/users`](/r/gnoland/users) for newer versions of the registry.")
 33		out += md.HorizontalRule()
 34	}
 35
 36	out += renderIntroParagraph()
 37
 38	out += md.H2("Latest registrations")
 39	out += RenderLatestUsersWidget(-1)
 40
 41	return out
 42}
 43
 44func renderIntroParagraph() string {
 45	out := md.Paragraph("Welcome to the Gno.land User Registry (v1). Please register a username.")
 46	out += md.Paragraph(`Registering a username grants the registering address the right to deploy packages and realms
 47under that username’s namespace. For example, if an address registers the username ` + md.InlineCode("gnome123") + `, it 
 48will gain permission to deploy packages and realms to package paths with the pattern ` + md.InlineCode("gno.land/{p,r}/gnome123/*") + `.`)
 49
 50	out += md.Paragraph("In V1, usernames must follow these rules, in order to prevent username squatting:")
 51	items := []string{
 52		"Must start with 3 letters",
 53		"Letters must be lowercase",
 54		"Must end with 3 numbers",
 55		"Have a maximum length of 20 characters",
 56		"With the only special character allowed being `_`",
 57	}
 58	out += md.BulletList(items)
 59
 60	out += "\n\n"
 61	out += md.Paragraph("In later versions of the registry, vanity usernames will be allowed through specific mechanisms.")
 62
 63	if !paused {
 64		amount := ufmt.Sprintf("%dugnot", registerPrice)
 65		link := txlink.NewLink("Register")
 66		if registerPrice > 0 {
 67			link = link.SetSend(amount)
 68		}
 69
 70		out += md.H3(ufmt.Sprintf(" [[Click here to register]](%s)", link.URL()))
 71		// XXX: Display registration price adjusting for dynamic GNOT price when it becomes possible.
 72		out += ufmt.Sprintf("Registration price: %f GNOT (%s)\n\n", float64(registerPrice)/1_000_000, amount)
 73	}
 74
 75	out += md.HorizontalRule()
 76	out += "\n\n"
 77
 78	return out
 79}
 80
 81// resolveUser resolves the user based on the path, determining if it's a name or address
 82func resolveUser(path string) (*susers.UserData, bool, bool) {
 83	if address(path).IsValid() {
 84		return susers.ResolveAddress(address(path)), false, false
 85	}
 86
 87	data, isLatest := susers.ResolveName(path)
 88	return data, isLatest, true
 89}
 90
 91// renderUserPage generates the user page based on user data and path
 92func renderUserPage(path string) string {
 93	var out string
 94
 95	// Render single user page
 96	data, isLatest, isName := resolveUser(path)
 97	if data == nil {
 98		out += md.H1("User not found.")
 99		out += "This user does not exist or has been deleted.\n"
100		return out
101	}
102
103	out += md.H1("User - " + md.InlineCode(data.Name()))
104
105	if isName && !isLatest {
106		out += md.Paragraph(ufmt.Sprintf(
107			"Note: You searched for `%s`, which is a previous name of [`%s`](/u/%s).",
108			path, data.Name(), data.Name()))
109	} else {
110		out += ufmt.Sprintf("Address: %s\n\n", data.Addr().String())
111
112		out += md.H2("Bio")
113		out += profile.GetStringField(data.Addr(), "Bio", "No bio defined.")
114		out += "\n\n"
115		out += ufmt.Sprintf("[Update bio](%s)", txlink.Realm("gno.land/r/demo/profile").Call("SetStringField", "field", "Bio"))
116		out += "\n\n"
117	}
118
119	return out
120}
121
122// RenderLatestUsersWidget renders the latest num registered users
123// For num = -1, maximum number (10) will be displayed
124func RenderLatestUsersWidget(num int) string {
125	size := latestUsers.Size()
126	if size == 0 {
127		return "No registered users."
128	}
129
130	if num > size || num < 0 {
131		num = size
132	}
133
134	entries := latestUsers.Entries()
135	var out string
136
137	for i := size - 1; i >= size-num; i-- {
138		user := entries[i].(string)
139		out += md.BulletItem(md.UserLink(user))
140	}
141
142	return out
143}