Show user's active games on home page after login

ui/gamelist.go

@@ -0,0 +1,101 @@
+package ui
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/ryanhamamura/via/h"
+)
+
+type GameListItem struct {
+	ID           string
+	Status       int
+	OpponentName string
+	IsMyTurn     bool
+	LastPlayed   time.Time
+}
+
+func GameList(games []GameListItem) h.H {
+	if len(games) == 0 {
+		return nil
+	}
+
+	var items []h.H
+	for _, g := range games {
+		items = append(items, gameListEntry(g))
+	}
+
+	listItems := []h.H{h.Class("game-list-items")}
+	listItems = append(listItems, items...)
+
+	return h.Div(h.Class("game-list"),
+		h.H3(h.Text("Your Games")),
+		h.Div(listItems...),
+	)
+}
+
+func gameListEntry(g GameListItem) h.H {
+	statusText, statusClass := getStatusDisplay(g)
+
+	return h.A(
+		h.Href("/game/"+g.ID),
+		h.Class("game-entry"),
+		h.Div(h.Class("game-entry-main"),
+			h.Span(h.Class("opponent-name"), h.Text(getOpponentDisplay(g))),
+			h.Span(h.Class("game-status "+statusClass), h.Text(statusText)),
+		),
+		h.Div(h.Class("game-entry-meta"),
+			h.Span(h.Class("time-ago"), h.Text(formatTimeAgo(g.LastPlayed))),
+		),
+	)
+}
+
+func getStatusDisplay(g GameListItem) (string, string) {
+	switch g.Status {
+	case 0: // Waiting
+		return "Waiting for opponent", "waiting"
+	case 1: // In progress
+		if g.IsMyTurn {
+			return "Your turn!", "your-turn"
+		}
+		return "Opponent's turn", "opponent-turn"
+	}
+	return "", ""
+}
+
+func getOpponentDisplay(g GameListItem) string {
+	if g.OpponentName == "" {
+		return "Waiting for opponent..."
+	}
+	return "vs " + g.OpponentName
+}
+
+func formatTimeAgo(t time.Time) string {
+	if t.IsZero() {
+		return ""
+	}
+	duration := time.Since(t)
+
+	if duration < time.Minute {
+		return "just now"
+	}
+	if duration < time.Hour {
+		mins := int(duration.Minutes())
+		if mins == 1 {
+			return "1 minute ago"
+		}
+		return fmt.Sprintf("%d minutes ago", mins)
+	}
+	if duration < 24*time.Hour {
+		hours := int(duration.Hours())
+		if hours == 1 {
+			return "1 hour ago"
+		}
+		return fmt.Sprintf("%d hours ago", hours)
+	}
+	days := int(duration.Hours() / 24)
+	if days == 1 {
+		return "yesterday"
+	}
+	return fmt.Sprintf("%d days ago", days)
+}