package entry

import (
	"sync"
	"sync/atomic"
	"time"

	"gitee.com/leminewx/loggo/field"
	"gitee.com/leminewx/loggo/level"
)

var (
	once sync.Once
	pool *sync.Pool
)

func init() {
	once.Do(func() {
		pool = &sync.Pool{New: func() interface{} { return &Entry{Fields: nil} }}
	})
}

// Entry 定义日志条目的数据结构
type Entry struct {
	call    int32         // 调用计数
	Level   level.Level   // 日志等级
	Time    time.Time     // 触发时间
	Message string        // 日志内容
	Fields  []field.Field // 补充字段
}

// New 新建一条日志
func New(call int32, level level.Level, msg string, fields ...field.Field) *Entry {
	entry := pool.Get().(*Entry)
	entry.call = call
	entry.Level = level
	entry.Time = time.Now()
	entry.Message = msg
	entry.Fields = fields
	return entry
}

// Dealloc 回收 Entry，以备复用
func (own *Entry) Dealloc() {
	if atomic.AddInt32(&own.call, -1) < 1 {
		own.call = 0
		own.Message = ""
		own.Fields = nil
		pool.Put(own)
	}
}