render.gno

 1package validator_scores
 2
 3import (
 4	"strconv"
 5	"strings"
 6)
 7
 8// formatHundredths renders the canonical decimal "8743" as "87.43".
 9func formatHundredths(s string) string {
10	for len(s) < 3 {
11		s = "0" + s
12	}
13	return s[:len(s)-2] + "." + s[len(s)-2:]
14}
15
16// mdEscape backslash-escapes every ASCII punctuation character, so a
17// moniker renders as plain text and never as an author-chosen link, image
18// or HTML. gnoweb still turns a g1 address that follows a space into a link
19// to its /u/ page, with the address itself as the link text.
20func mdEscape(s string) string {
21	var b strings.Builder
22	for i := 0; i < len(s); i++ {
23		c := s[i]
24		if c >= '!' && c <= '/' || c >= ':' && c <= '@' || c >= '[' && c <= '`' || c >= '{' && c <= '~' {
25			b.WriteByte('\\')
26		}
27		b.WriteByte(c)
28	}
29	return b.String()
30}
31
32// Render shows the latest sealed edition as a Markdown table. The path is
33// ignored.
34func Render(_ string) string {
35	var b strings.Builder
36	b.WriteString("# Validator selection scores\n\n")
37	e := latestSealed()
38	if e == nil {
39		b.WriteString("No edition has been published yet.\n")
40		return b.String()
41	}
42	b.WriteString("Edition " + strconv.Itoa(e.number) + ", computed at " + e.computedAt +
43		", scorecard SHA-256 `" + e.scorecardSHA256 + "`. Scores have two decimals; a sealed edition never changes.\n\n")
44	b.WriteString("| Rank | Moniker | Operator | Total |")
45	for _, a := range e.arenas {
46		b.WriteString(" " + mdEscape(a) + " |")
47	}
48	b.WriteString(" GitHub |\n| ---: | --- | --- | ---: |")
49	for range e.arenas {
50		b.WriteString(" ---: |")
51	}
52	b.WriteString(" ---: |\n")
53	for _, c := range sortedCandidates(e) {
54		b.WriteString("| " + c.rankText + " | " + mdEscape(c.moniker) + " | " + c.operator +
55			" | " + formatHundredths(c.total) + " |")
56		for _, s := range strings.Split(c.arenaScores, ",") {
57			b.WriteString(" " + formatHundredths(s) + " |")
58		}
59		b.WriteString(" " + formatHundredths(c.github) + " |\n")
60	}
61	b.WriteString("\nMachine-readable: `LatestJSON()`, `EditionJSON(n)`, `CandidateJSON(operator)`.\n")
62	return b.String()
63}