package main

import (
	"fmt"
	"strings"

	"fyne.io/fyne/v2/widget"
)

type Logger struct {
	logText *widget.Entry
	logBuffer []string
	logMaxLines int
}

var globalLogger *Logger;

func InitLogger(text *widget.Entry, maxLines int) {
    globalLogger = &Logger{
        logText:     text,
        logMaxLines: maxLines,
    }
}

func Log(line string) {
	if globalLogger == nil {
		fmt.Println("Global Logger is nil")
		return
	}

	globalLogger.log(line)
}

func (l *Logger) log(line string) {
	l.logBuffer = append(l.logBuffer, line)
	if len(l.logBuffer) > l.logMaxLines {
		l.logBuffer = l.logBuffer[1:]
	}
	l.logText.SetText(strings.Join(l.logBuffer, "\n"))
}