fix: Remove PluginConfig.LogLevel and set default log level to Off (#77)

This fixes a bug where log level is Trace by default and removes
PluginConfig.LogLevel since we can't enforce it anymore

extism.go

@@ -55,7 +55,6 @@ type PluginConfig struct {
 	ModuleConfig   wazero.ModuleConfig
 	RuntimeConfig  wazero.RuntimeConfig
 	EnableWasi     bool
-	LogLevel       LogLevel
 	ObserveAdapter *observe.AdapterBase
 	ObserveOptions *observe.Options
 }
@@ -147,11 +146,16 @@ func (p *Plugin) SetLogger(logger func(LogLevel, string)) {
 }
 
 func (p *Plugin) Log(level LogLevel, message string) {
-	if level < LogLevel(pluginLogLevel.Load()) {
-		return
+	minimumLevel := LogLevel(pluginLogLevel.Load())
+
+	// If the global log level hasn't been set, use LogLevelOff as default
+	if minimumLevel == logLevelUnset {
+		minimumLevel = LogLevelOff
 	}
 
-	p.log(level, message)
+	if level >= minimumLevel {
+		p.log(level, message)
+	}
 }
 
 func (p *Plugin) Logf(level LogLevel, format string, args ...any) {
@@ -351,7 +355,7 @@ var pluginLogLevel = atomic.Int32{}
 
 // SetPluginLogLevel sets the log level for the plugin
 func SetLogLevel(level LogLevel) {
-	pluginLogLevel.Store(int32(level.ExtismCompat()))
+	pluginLogLevel.Store(int32(level))
 }
 
 // NewPlugin creates a new Extism plugin with the given manifest, configuration, and host functions.

extism_test.go

@@ -435,11 +435,6 @@ func TestLog_default(t *testing.T) {
 		log.SetOutput(os.Stderr)
 	}()
 
-	type LogEntry struct {
-		message string
-		level   LogLevel
-	}
-
 	if plugin, ok := plugin(t, manifest); ok {
 		defer plugin.Close()
 

host.go

@@ -334,7 +334,6 @@ func buildEnvModule(ctx context.Context, rt wazero.Runtime, extism api.Module) (
 	logFunc("log_info", LogLevelInfo)
 	logFunc("log_warn", LogLevelWarn)
 	logFunc("log_error", LogLevelError)
-	logFunc("log_trace", LogLevelTrace)
 
 	return builder.Instantiate(ctx)
 }
@@ -586,7 +585,7 @@ func getLogLevel(ctx context.Context, m api.Module) int32 {
 	// if _, ok := ctx.Value(PluginCtxKey("plugin")).(*Plugin); ok {
 	// 	panic("Invalid context, `plugin` key not found")
 	// }
-	return pluginLogLevel.Load()
+	return LogLevel(pluginLogLevel.Load()).ExtismCompat()
 }
 
 // EncodeI32 encodes the input as a ValueTypeI32.