commit a096771e20022e3b3a0352154b962f9f26017201
Author: Martin Geno <geno+dev@fireorbit.de>
Date:   Sun Jun 11 01:33:35 2017 +0200

    [TASK] add log entry

diff --git a/entry/level.go b/entry/level.go
new file mode 100644
index 0000000..1fa2451
--- /dev/null
+++ b/entry/level.go
@@ -0,0 +1,116 @@
+package entry
+
+type logLevel int32
+
+const (
+	DebugLevel = -1
+	InfoLevel  = 0
+	WarnLevel  = 1
+	ErrorLevel = 2
+	PanicLevel = 3
+)
+
+func (l logLevel) String() string {
+	switch l {
+	case DebugLevel:
+		return "Debug"
+	case InfoLevel:
+		return "Info"
+	case WarnLevel:
+		return "Warn"
+	case ErrorLevel:
+		return "ERROR"
+	case PanicLevel:
+		return "PANIC"
+
+	}
+	return "NOT VALID"
+}
+
+/**
+ * log command
+ */
+
+// debug
+func (e *Entry) Debug(v ...interface{}) {
+	e.Log(DebugLevel, v...)
+}
+func (e *Entry) Debugf(format string, v ...interface{}) {
+	e.Logf(DebugLevel, format, v...)
+}
+
+// info
+func (e *Entry) Info(v ...interface{}) {
+	e.Log(InfoLevel, v...)
+}
+func (e *Entry) Infof(format string, v ...interface{}) {
+	e.Logf(InfoLevel, format, v...)
+}
+
+// warn
+func (e *Entry) Warn(v ...interface{}) {
+	e.Log(WarnLevel, v...)
+}
+func (e *Entry) Warnf(format string, v ...interface{}) {
+	e.Logf(WarnLevel, format, v...)
+}
+
+// error
+func (e *Entry) Error(v ...interface{}) {
+	e.Log(ErrorLevel, v...)
+}
+func (e *Entry) Errorf(format string, v ...interface{}) {
+	e.Logf(ErrorLevel, format, v...)
+}
+
+// panic
+func (e *Entry) Panic(v ...interface{}) {
+	e.Log(PanicLevel, v...)
+}
+func (e *Entry) Panicf(format string, v ...interface{}) {
+	e.Logf(PanicLevel, format, v...)
+}
+
+/**
+ * Direct log command
+ */
+
+// debug
+func Debug(v ...interface{}) {
+	New().Log(DebugLevel, v...)
+}
+func Debugf(format string, v ...interface{}) {
+	New().Logf(DebugLevel, format, v...)
+}
+
+// info
+func Info(v ...interface{}) {
+	New().Log(InfoLevel, v...)
+}
+func Infof(format string, v ...interface{}) {
+	New().Logf(InfoLevel, format, v...)
+}
+
+// warn
+func Warn(v ...interface{}) {
+	New().Log(WarnLevel, v...)
+}
+func Warnf(format string, v ...interface{}) {
+	New().Logf(WarnLevel, format, v...)
+}
+
+// error
+func Error(v ...interface{}) {
+	New().Log(ErrorLevel, v...)
+}
+func Errorf(format string, v ...interface{}) {
+	New().Logf(ErrorLevel, format, v...)
+}
+
+// panic
+func Panic(v ...interface{}) {
+	New().Log(PanicLevel, v...)
+}
+func Panicf(format string, v ...interface{}) {
+	New().Logf(PanicLevel, format, v...)
+}
diff --git a/entry/main.go b/entry/main.go
new file mode 100644
index 0000000..49a1dd2
--- /dev/null
+++ b/entry/main.go
@@ -0,0 +1,39 @@
+package entry
+
+import "fmt"
+
+type Entry struct {
+	Level  logLevel               `json:"level"`
+	Fields map[string]interface{} `json:"fields"`
+	Text   string                 `json:"text"`
+}
+
+func (e *Entry) Log(level logLevel, v ...interface{}) {
+	e.Text = fmt.Sprint(v...)
+	e.Level = level
+	save(e)
+}
+func (e *Entry) Logf(level logLevel, format string, v ...interface{}) {
+	e.Text = fmt.Sprintf(format, v...)
+	e.Level = level
+	save(e)
+}
+
+func New() *Entry {
+	return &Entry{Fields: make(map[string]interface{})}
+}
+
+func (e *Entry) AddField(key string, value interface{}) *Entry {
+	e.Fields[key] = value
+	return e
+}
+func (e *Entry) AddFields(fields map[string]interface{}) *Entry {
+	for key, value := range fields {
+		e.Fields[key] = value
+	}
+	return e
+}
+
+func (e *Entry) FieldString() string {
+	return FieldOutput(e.Fields)
+}
diff --git a/entry/output.go b/entry/output.go
new file mode 100644
index 0000000..40ea9ce
--- /dev/null
+++ b/entry/output.go
@@ -0,0 +1,39 @@
+package entry
+
+import (
+	"fmt"
+	"os"
+	"time"
+)
+
+var TimeFormat = "2006-01-02 15:04:05"
+
+var InternelSend = func(e *Entry) {
+	format := "%s [%s] %s\n"
+	v := []interface{}{time.Now().Format(TimeFormat), e.Level.String(), e.Text}
+	if len(e.Fields) > 0 {
+		format = "%s [%s] %s (%s)\n"
+		v = append(v, e.FieldString())
+	}
+	text := fmt.Sprintf(format, v...)
+
+	if e.Level == PanicLevel {
+		panic(text)
+	} else if e.Level > WarnLevel {
+		os.Stderr.WriteString(text)
+	} else {
+		os.Stdout.WriteString(text)
+	}
+}
+
+var FieldOutput = func(fields map[string]interface{}) string {
+	text := ""
+	for key, value := range fields {
+		text = fmt.Sprintf("%s %s=%v", text, key, value)
+	}
+	return text[1:]
+}
+
+func save(e *Entry) {
+	InternelSend(e)
+}