// Copyright 2013-2014 Fuzamei tech Ltd. All rights reserved.

package main

import (
	"flag"
	"fmt"
	"log"
	"os"
	"runtime"
	"time"

	"tickserver/server/tick"
	"github.com/niniwzw/http2"
)

var confFile = flag.String("conf", "datasource.json", "配置文件")
var debug = flag.Bool("d", false, "调试模式")
var http2model = flag.Bool("http2", true, "是否开启http2模式")
var snap = flag.String("snap", "no", "快照")
var pid = flag.String("pid", "/var/log/ds.pid", "pid file")

func logName() string {
	t := time.Now()
	return fmt.Sprintf("mk%4d-%02d-%02d-%02d-%02d-%02d.log", t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second())
}

func main() {
	runtime.GOMAXPROCS(runtime.NumCPU())
	flag.Parse()
	// set debug
	tick.SetDebug(*debug)
	if *debug {
		http2.VerboseLogs = true
	}
	conf, err := tick.ReadConf(*confFile)
	if err != nil {
		conf = tick.DefaultServerConf
		err = tick.WriteConf(*confFile, conf)
		if err != nil {
			log.Fatal(err)
		}
		log.Println("please config the conf file:", *confFile)
		return
	}
	tick.SetConf(conf)
	if runtime.GOOS == "windows" {
		*pid = "ds.pid"
	}
	if *snap != "no" {
		fp, err := lock(*pid + ".snap")
		if err != nil {
			log.Fatal(err)
		}
		defer fp.Close()
		tick.InitDb()
		if *snap == "all" {
			err = tick.SnapAll()
		} else {
			err = tick.SnapHour(*snap)
		}
		if err != nil {
			log.Println("snap error::", err)
		}
		return
	}
	fp, err := lock(*pid)
	if err != nil {
		log.Fatal(err)
	}
	defer fp.Close()
	log.Println("datasource start")
	tick.Init()
	log.Println("run server")
	err = tick.RunServer(conf.HttpAddr, logName(), *http2model)
	if err != nil {
		log.Println(err)
	}
}

func lock(path string) (*os.File, error) {
	file, err := os.Create(path)
	if err != nil {
		return nil, err
	}
	err = tick.LockFile(file)
	if err != nil {
		file.Close()
		return nil, err
	}
	return file, nil
}