package main

import (
	"log"
	"os"
	"strings"
	"sync"

	"github.com/kiwiirc/webircgateway/pkg/webircgateway"
)

var errLog *log.Logger

func Start(gateway *webircgateway.Gateway, pluginsQuit *sync.WaitGroup) {
	gateway.Log(1, "IRC Error Logger plugin %s", webircgateway.Version)

	logFile, err := os.OpenFile("error.log", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
	if err != nil {
		gateway.Log(3, "Unable to open log file for IRC Error logs: %s", err)
		return
	}
	errLog = log.New(logFile, "", log.LstdFlags)

	webircgateway.HookRegister("irc.line", hookIrcLine)

	pluginsQuit.Done()
}

func hookIrcLine(hook *webircgateway.HookIrcLine) {
	if hook.Message.Command == "NOTICE" {
		if hook.Message.Params[0] != hook.Client.IrcState.Nick {
			return
		}
		line := strings.ToLower(hook.Line)
		if strings.Contains(line, "error") {
			errLog.Printf("%v %v", hook.UpstreamConfig.Hostname, hook.Line)
		}
	} else if hook.Message.Command == "ERROR" {
		errLog.Printf("%v %v", hook.UpstreamConfig.Hostname, hook.Line)
	}
}