render.gno

  1package arena
  2
  3import (
  4	"strconv"
  5	"strings"
  6	"time"
  7
  8	"gno.land/p/g188vafzutzvlfw6wt7u3s62xtuvm0epmu8ufmfz/gnomepit/engine"
  9)
 10
 11const notFound = "# Not found\n\nThe arena has no page at this path.\n"
 12
 13// Render serves the board of open challenges at "", one player's matches at
 14// "player/<address>", and one match at "match/<id>".
 15func Render(path string) string {
 16	switch {
 17	case path == "":
 18		return renderBoard()
 19	case strings.HasPrefix(path, "player/"):
 20		player := address(strings.TrimPrefix(path, "player/"))
 21		if !canonical(player) {
 22			return notFound
 23		}
 24		return renderPlayer(player)
 25	case strings.HasPrefix(path, "match/"):
 26		rules := engine.ProofOfConcept()
 27		n, m, ok := lookup(rules, strings.TrimPrefix(path, "match/"))
 28		if !ok {
 29			return notFound
 30		}
 31		return renderMatch(m.view(rules, n, time.Now().Unix()))
 32	}
 33	return notFound
 34}
 35
 36func renderBoard() string {
 37	var b strings.Builder
 38	b.WriteString("# Gnomepit arena\n\nOpen challenges, newest first.\n\n")
 39	list := Open(0, maxPage)
 40	if len(list) == 0 {
 41		b.WriteString("No open challenge.\n")
 42	}
 43	for _, c := range list {
 44		who := "open to anyone"
 45		if c.Opponent != "" {
 46			who = "reserved for " + c.Opponent
 47		}
 48		b.WriteString("- " + matchLink(c.ID) + ": " + c.Clan + ", posted by " + c.Challenger + ", " + who + ", expires " + date(c.Expires) + "\n")
 49	}
 50	return b.String()
 51}
 52
 53func renderPlayer(player address) string {
 54	var b strings.Builder
 55	b.WriteString("# Matches of " + player.String() + "\n\n")
 56	list := Matches(player, 0, maxPage)
 57	if len(list) == 0 {
 58		b.WriteString("No match.\n")
 59	}
 60	for _, s := range list {
 61		b.WriteString("- " + matchLink(s.ID) + ": " + s.ChallengerClan + " against " + orNone(s.AcceptorClan) + ", " + s.Phase + "\n")
 62	}
 63	return b.String()
 64}
 65
 66func renderMatch(v MatchView) string {
 67	var b strings.Builder
 68	b.WriteString("# Match " + v.ID + "\n\n")
 69	b.WriteString(v.ChallengerClan + " (" + v.Challenger + ") against " + orNone(v.AcceptorClan))
 70	if v.Acceptor != "" {
 71		b.WriteString(" (" + v.Acceptor + ")")
 72	}
 73	b.WriteString("\n\n")
 74	switch v.Phase {
 75	case phaseOpen:
 76		who := "open to anyone"
 77		if v.Opponent != "" {
 78			who = "reserved for " + v.Opponent
 79		}
 80		b.WriteString("Open challenge, " + who + ", until " + date(v.Deadline) + ".\n")
 81	case phaseReveal, phasePlay:
 82		b.WriteString("Round " + strconv.Itoa(v.Round) + ", waiting for " + v.ToMove + " until " + date(v.Deadline) + ".\n")
 83	case phaseEnded:
 84		b.WriteString("Over: " + outcome(v.Result, v.Reason) + ".\n")
 85	default:
 86		b.WriteString(strings.ToUpper(v.Phase[:1]) + v.Phase[1:] + ".\n")
 87	}
 88	if len(v.HP) > 0 {
 89		b.WriteString("\n| HP after | Challenger | Acceptor |\n|---|---|---|\n")
 90		for i, hp := range v.HP {
 91			b.WriteString("| Round " + strconv.Itoa(i+1) + " | " + strconv.Itoa(hp[0]) + " | " + strconv.Itoa(hp[1]) + " |\n")
 92		}
 93	}
 94	return b.String()
 95}
 96
 97func outcome(result, reason string) string {
 98	winner := "the challenger won"
 99	switch result {
100	case "b":
101		winner = "the acceptor won"
102	case "draw":
103		winner = "a draw"
104	}
105	switch reason {
106	case "hp":
107		return winner + " on HP"
108	case "knockout":
109		return winner + " by knockout"
110	case "resign":
111		return winner + " by resignation"
112	}
113	return winner + " by forfeit"
114}
115
116func matchLink(id string) string {
117	return "[Match " + id + "](" + strings.TrimPrefix(self, "gno.land") + ":match/" + id + ")"
118}
119
120func date(unix int64) string {
121	return time.Unix(unix, 0).UTC().Format("2006-01-02 15:04 UTC")
122}
123
124func orNone(s string) string {
125	if s == "" {
126		return "nobody yet"
127	}
128	return s
129}