simplelog/console_handler.go

70 lines
1.2 KiB
Go

package simplelog
import (
"context"
"fmt"
"log/slog"
"runtime"
"time"
"github.com/fatih/color"
)
type ConsoleHandler struct{}
func NewConsoleHandler() *ConsoleHandler {
return &ConsoleHandler{}
}
func (c *ConsoleHandler) Handle(
ctx context.Context,
record slog.Record,
) error {
timestamp := time.Now().UTC().Format("2006-01-02T15:04:05.000Z07:00")
var colorFunc func(format string, a ...interface{}) string
switch record.Level {
case slog.LevelInfo:
colorFunc = color.New(color.FgBlue).SprintfFunc()
case slog.LevelWarn:
colorFunc = color.New(color.FgYellow).SprintfFunc()
case slog.LevelError:
colorFunc = color.New(color.FgRed).SprintfFunc()
default:
colorFunc = color.New(color.FgWhite).SprintfFunc()
}
// Get the caller information
_, file, line, ok := runtime.Caller(4)
if !ok {
file = "???"
line = 0
}
fmt.Println(
colorFunc(
"%s [%s] %s:%d: %s",
timestamp,
record.Level,
file,
line,
record.Message,
),
)
return nil
}
func (c *ConsoleHandler) Enabled(
ctx context.Context,
level slog.Level,
) bool {
return true
}
func (c *ConsoleHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
return c
}
func (c *ConsoleHandler) WithGroup(name string) slog.Handler {
return c
}