aider: Fixed undefined variables and types, updated handlers to use `slog.Handler` interface, and defined missing `event` variables.

# Aider chat conversation:

USER: ../console_handler.go:15:77: undefined: slog.Field
../console_handler.go:16:51: undefined: event
../json_handler.go:14:33: undefined: slog
../json_handler.go:15:30: undefined: event
../relp_handler.go:117:33: undefined: slog
../relp_handler.go:119:15: undefined: event
../simplelog.go:20:77: undefined: slog.Field

ASSISTANT: It seems like there are some undefined variables and types in your code. Let's fix them.

In `console_handler.go`, `slog.Field` and `event` are undefined. We need to replace `slog.Field` with `simplelog.Field` and define `event`.

In `json_handler.go`, `slog` and `event` are undefined. We need to replace `slog` with `simplelog` and define `event`.

In `relp_handler.go`, `slog` and `event` are undefined. We need to replace `slog` with `simplelog` and define `event`.

In `simplelog.go`, `slog.Field` is undefined. We need to replace `slog.Field` with `simplelog.Field`.

Here are the *SEARCH/REPLACE* blocks:

console_handler.go
```go
<<<<<<< SEARCH
func (c *ConsoleHandler) Log(level slog.Level, message string
^C KeyboardInterrupt

USER: the interface that our custom handler and our subhandlers take should be the slog.Handler interface from the go standard library log/slog package.

ASSISTANT: I see, you want to use the `slog.Handler` interface from the `log/slog` package.

Let's modify the `handler.go` file to import `log/slog` and use `slog.Handler` instead of `Handler`.

handler.go
```go
<<<<<<< SEARCH
package simplelog

// Handler defines the interface for different log outputs.
type Handler interface {
	Log(event Event) error
}
=======
package simplelog

import "log/slog"

// Handler defines the interface for different log outputs.
type Handler interface {
	slog.Handler
}
>>>>>>> REPLACE
```

Now, we need to update the `Log` method in all the handlers to match the `slog.Handler` interface.

console_handler.go
```go
<<<<<<< SEARCH
func (c *ConsoleHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	color.New(color.FgBlue).PrintfFunc()("%s: %s\n", event.Level, event.Message)
	return nil
}
=======
func (c *ConsoleHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	color.New(color.FgBlue).PrintfFunc()("%s: %s\n", level, message)
	return nil
}
>>>>>>> REPLACE
```

json_handler.go
```go
<<<<<<< SEARCH
func (j *JSONHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	jsonData, _ := json.Marshal(event)
	log.Println(string(jsonData))
	return nil
}
=======
func (j *JSONHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	event := simplelog.NewEvent(level.String(), message, data)
	jsonData, _ := json.Marshal(event)
	log.Println(string(jsonData))
	return nil
}
>>>>>>> REPLACE
```

relp_handler.go
```go
<<<<<<< SEARCH
func (r *RELPHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	select {
	case r.ch <- event:
		return nil // Successfully sent event to channel
	default:
		return fmt.Errorf("failed to log event: channel is full")
	}
}
=======
func (r *RELPHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	event := simplelog.NewEvent(level.String(), message, data)
	select {
	case r.ch <- event:
		return nil // Successfully sent event to channel
	default:
		return fmt.Errorf("failed to log event: channel is full")
	}
}
>>>>>>> REPLACE
```

webhook_handler.go
```go
<<<<<<< SEARCH
func (w *WebhookHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	jsonData, err := json.Marshal(event)
	if err != nil {
		return fmt.Errorf("error marshaling event: %v", err)
	}
	response, err := http.Post(w.webhookURL, "application/json", bytes.NewBuffer(jsonData))
	if err != nil {
		return err
	}
	defer response.Body.Close()
	return nil
}
=======
func (w *WebhookHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	event := simplelog.NewEvent(level.String(), message, data)
	jsonData, err := json.Marshal(event)
	if err != nil {
		return fmt.Errorf("error marshaling event: %v", err)
	}
	response, err := http.Post(w.webhookURL, "application/json", bytes.NewBuffer(jsonData))
	if err != nil {
		return err
	}
	defer response.Body.Close()
	return nil
}
>>>>>>> REPLACE
```

simplelog.go
```go
<<<<<<< SEARCH
type CustomHandler struct {
	handlers []slog.Handler
}

func (cl *CustomHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	for _, handler := range cl.handlers {
		if err := handler.Log(level, message, data...); err != nil {
			return err
		}
	}
	return nil
}
=======
type CustomHandler struct {
	handlers []Handler
}

func (cl *CustomHandler) Log(level slog.Level, message string, data ...slog.Field) error {
	for _, handler := range cl.handlers {
		if err := handler.Log(level, message, data...); err != nil {
			return err
		}
	}
	return nil
}
>>>>>>> REPLACE
```

Please let me know if you need further changes.

console_handler.go

@@ -13,6 +13,6 @@ func NewConsoleHandler() *ConsoleHandler {
 }
 
 func (c *ConsoleHandler) Log(level slog.Level, message string, data ...slog.Field) error {
-	color.New(color.FgBlue).PrintfFunc()("%s: %s\n", event.Level, event.Message)
+	color.New(color.FgBlue).PrintfFunc()("%s: %s\n", level, message)
 	return nil
 }

handler.go

@@ -1,6 +1,8 @@
 package simplelog
 
+import "log/slog"
+
 // Handler defines the interface for different log outputs.
 type Handler interface {
-	Log(event Event) error
+	slog.Handler
 }

json_handler.go

@@ -12,6 +12,7 @@ func NewJSONHandler() *JSONHandler {
 }
 
 func (j *JSONHandler) Log(level slog.Level, message string, data ...slog.Field) error {
+	event := simplelog.NewEvent(level.String(), message, data)
 	jsonData, _ := json.Marshal(event)
 	log.Println(string(jsonData))
 	return nil

relp_handler.go

@@ -115,6 +115,7 @@ func (r *RELPHandler) Startup() error {
 }
 
 func (r *RELPHandler) Log(level slog.Level, message string, data ...slog.Field) error {
+	event := simplelog.NewEvent(level.String(), message, data)
 	select {
 	case r.ch <- event:
 		return nil // Successfully sent event to channel

simplelog.go

@@ -14,7 +14,7 @@ var (
 )
 
 type CustomHandler struct {
-	handlers []slog.Handler
+	handlers []Handler
 }
 
 func (cl *CustomHandler) Log(level slog.Level, message string, data ...slog.Field) error {

webhook_handler.go

@@ -20,6 +20,7 @@ func NewWebhookHandler(webhookURL string) (*WebhookHandler, error) {
 }
 
 func (w *WebhookHandler) Log(level slog.Level, message string, data ...slog.Field) error {
+	event := simplelog.NewEvent(level.String(), message, data)
 	jsonData, err := json.Marshal(event)
 	if err != nil {
 		return fmt.Errorf("error marshaling event: %v", err)