package logging

import (
	`os`
	`path/filepath`
	`regexp`

	`r00t2.io/goutils/bitmask`
)

// Flags for logger configuration. These are used internally.
const (
	// LogUndefined indicates an undefined Logger type.
	LogUndefined bitmask.MaskBit = 1 << iota
	// LogWinLogger indicates a WinLogger Logger type (Event Log).
	LogWinLogger
	// LogFile flags a FileLogger Logger type.
	LogFile
	// LogStdout flags a StdLogger Logger type.
	LogStdout
)

var (
	// defLogPaths indicates default log paths.
	defLogPaths = []string{
		filepath.Join(os.Getenv("ALLUSERSPROFILE"), "golang", "program.log"),     // C:\ProgramData\log\golang\program.log
		filepath.Join(os.Getenv("LOCALAPPDATA"), "log", "golang", "program.log"), // C:\Users\<username>\AppData\Local\log\golang\program.log
	}
)

// ptrnSourceExists is a regex pattern to check for a registry entry (Event Log entry) already existing.
var ptrnSourceExists *regexp.Regexp = regexp.MustCompile(`registry\skey\salready\sexists$`)

// Default WinEventID, (can be) used in GetLogger and MultiLogger.AddWinLogger.
var DefaultEventID *WinEventID = &WinEventID{
	Alert:   EventAlert,
	Crit:    EventCrit,
	Debug:   EventDebug,
	Emerg:   EventEmerg,
	Err:     EventErr,
	Info:    EventInfo,
	Notice:  EventNotice,
	Warning: EventWarning,
}

// Default Event IDs for WinEventID.
const (
	EventAlert uint32 = 1 << iota
	EventCrit
	EventDebug
	EventEmerg
	EventErr
	EventInfo
	EventNotice
	EventWarning
)