8d4c6ff68f
Consumes the Python tracker's /ws/live firehose (subscribed to rare+chat), classifies rares common/great, posts embeds + relays allegiance chat. - classify.go: the 74-name common-rares set, extracted verbatim from the Python COMMON_RARES_PATTERN (not hand-transcribed). go test runs at build time; a server-side dump-rares vs the Python regex confirms the sets are IDENTICAL. - poster.go: a `poster` interface with a real discordgo impl (REST sends by channel id; gold/blue embeds, location/time fields, icon attachment) and a dry-run log impl. - ws.go: coder/websocket client to /ws/live with subscribe, ping keepalive, exponential-backoff reconnect; rare/chat dispatch incl. vortex-warning + the MONITOR_CHARACTER filter. - SAFE BY DEFAULT: dry-run unless a token AND DRY_RUN=0 are set, so it can never double-post to production. Deployed via the compose override (discord-rare-monitor-go), running dry-run against the same live firehose. Validated on the server: connects, subscribes, relays a real chat in dry-run; classifier parity 74/74 vs the Python regex. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
90 lines
2.7 KiB
Go
90 lines
2.7 KiB
Go
// Command discord-go is a Go port of discord-rare-monitor: it consumes the
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// tracker's /ws/live firehose (subscribed to rare+chat), classifies rares
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// common/great, posts embeds to Discord, and relays allegiance chat.
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//
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// SAFETY: it runs in dry-run (log only, no Discord posts) by default. Going live
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// requires BOTH a bot token AND DRY_RUN=0 — so it can never accidentally
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// double-post to the production channels during the parallel run. For a parallel
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// test, set a TEST token + TEST channel IDs + DRY_RUN=0.
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package main
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import (
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"context"
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"fmt"
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"log/slog"
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"os"
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"os/signal"
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"sort"
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"syscall"
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"github.com/bwmarrin/discordgo"
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)
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func main() {
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// `discord-go dump-rares` prints the common-rares set (for parity diffing
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// against the Python regex). No network, no token.
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if len(os.Args) > 1 && os.Args[1] == "dump-rares" {
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names := make([]string, 0, len(commonRares))
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for n := range commonRares {
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names = append(names, n)
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}
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sort.Strings(names)
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for _, n := range names {
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fmt.Println(n)
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}
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return
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}
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logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{Level: slog.LevelInfo}))
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slog.SetDefault(logger)
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token := os.Getenv("DISCORD_RARE_BOT_TOKEN")
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// Dry-run unless a token is present AND DRY_RUN is explicitly "0".
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dryRun := token == "" || os.Getenv("DRY_RUN") != "0"
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wsURL := envOr("DERETH_TRACKER_WS_URL", "ws://dereth-tracker:8765/ws/live")
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monitorChar := envOr("MONITOR_CHARACTER", "Dunking Rares")
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ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
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defer stop()
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var out poster
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if dryRun {
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reason := "no DISCORD_RARE_BOT_TOKEN"
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if token != "" {
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reason = "DRY_RUN != 0"
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}
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logger.Info("starting in DRY-RUN — classifying but NOT posting to Discord", "reason", reason, "ws", wsURL, "monitor", monitorChar)
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out = &logPoster{log: logger}
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} else {
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dg, err := discordgo.New("Bot " + token)
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if err != nil {
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logger.Error("discord session init failed", "err", err)
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os.Exit(1)
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}
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// REST-only: we send by channel ID, so no gateway Open()/intents needed.
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logger.Info("starting LIVE — posting to Discord", "ws", wsURL, "monitor", monitorChar)
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out = &discordPoster{
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dg: dg,
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common: envOr("COMMON_RARE_CHANNEL_ID", "1355328792184226014"),
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great: envOr("GREAT_RARE_CHANNEL_ID", "1353676584334131211"),
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aclog: envOr("ACLOG_CHANNEL_ID", "1349649482786275328"),
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sawato: envOr("SAWATOLIFE_CHANNEL_ID", "1387323032271327423"),
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iconsDir: envOr("ICONS_DIR", "icons"),
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log: logger,
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}
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}
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b := &bot{wsURL: wsURL, monitorChar: monitorChar, out: out, log: logger}
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go b.run(ctx)
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<-ctx.Done()
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logger.Info("shutdown signal received")
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}
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func envOr(key, def string) string {
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if v := os.Getenv(key); v != "" {
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return v
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}
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return def
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}
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