refactor: complete refactor into cmd/ & internal/ submodules

internal/utils/meta.go

@@ -0,0 +1,78 @@
+package utils
+
+import (
+	"banner/internal/config"
+	"time"
+
+	"github.com/bwmarrin/discordgo"
+	"github.com/redis/go-redis/v9"
+	log "github.com/rs/zerolog/log"
+)
+
+// GetGuildName returns the name of the guild with the given ID, utilizing Redis to cache the value
+func GetGuildName(session *discordgo.Session, guildID string) string {
+	// Check Redis for the guild name
+	guildName, err := config.KV.Get(config.Ctx, "guild:"+guildID+":name").Result()
+	if err != nil && err != redis.Nil {
+		log.Error().Stack().Err(err).Msg("Error getting guild name from Redis")
+		return "err"
+	}
+
+	// If the guild name is invalid (1 character long), then return "unknown"
+	if len(guildName) == 1 {
+		return "unknown"
+	}
+
+	// If the guild name isn't in Redis, get it from Discord and cache it
+	guild, err := session.Guild(guildID)
+	if err != nil {
+		log.Error().Stack().Err(err).Msg("Error getting guild name")
+
+		// Store an invalid value in Redis so we  don't keep trying to get the guild name
+		_, err := config.KV.Set(config.Ctx, "guild:"+guildID+":name", "x", time.Minute*5).Result()
+		if err != nil {
+			log.Error().Stack().Err(err).Msg("Error setting false guild name in Redis")
+		}
+
+		return "unknown"
+	}
+
+	// Cache the guild name in Redis
+	config.KV.Set(config.Ctx, "guild:"+guildID+":name", guild.Name, time.Hour*3)
+
+	return guild.Name
+}
+
+// GetChannelName returns the name of the channel with the given ID, utilizing Redis to cache the value
+func GetChannelName(session *discordgo.Session, channelID string) string {
+	// Check Redis for the channel name
+	channelName, err := config.KV.Get(config.Ctx, "channel:"+channelID+":name").Result()
+	if err != nil && err != redis.Nil {
+		log.Error().Stack().Err(err).Msg("Error getting channel name from Redis")
+		return "err"
+	}
+
+	// If the channel name is invalid (1 character long), then return "unknown"
+	if len(channelName) == 1 {
+		return "unknown"
+	}
+
+	// If the channel name isn't in Redis, get it from Discord and cache it
+	channel, err := session.Channel(channelID)
+	if err != nil {
+		log.Error().Stack().Err(err).Msg("Error getting channel name")
+
+		// Store an invalid value in Redis so we  don't keep trying to get the channel name
+		_, err := config.KV.Set(config.Ctx, "channel:"+channelID+":name", "x", time.Minute*5).Result()
+		if err != nil {
+			log.Error().Stack().Err(err).Msg("Error setting false channel name in Redis")
+		}
+
+		return "unknown"
+	}
+
+	// Cache the channel name in Redis
+	config.KV.Set(config.Ctx, "channel:"+channelID+":name", channel.Name, time.Hour*3)
+
+	return channel.Name
+}