// Copyright 2019 getensh.com. All rights reserved.
// Use of this source code is governed by getensh.com.

package config

import (
	"fmt"
	"path/filepath"
	"strings"

	"github.com/spf13/viper"
)

type LogConfig struct {
	Path       string
	Level      string
	MaxSize    int
	MaxBackups int
	MaxAge     int
	Stacktrace bool
}

type MysqlConfig struct {
	User     string
	Password string
	Addr     string
	DB       string
	Charset  string
	MaxIdle  int
	MaxConn  int
	LogMode  bool
}

type RedisConfig struct {
	Addrs        []string
	Password     string
	DB           int
	PoolSize     int
	MinIdleConns int
	MaxRetries   int
	Cluster      bool
}

type ElasticConfig struct {
	Addrs []string
	Sniff bool
}

type ThirdPartNode struct {
	Host      string
	AppKey    string
	AppSecret string
}

type AliPartNode struct {
	AesKey string
}

type ThirdPartyConfig struct {
	Ali AliPartNode
}

type RPCNode struct {
	ServiceName   string
	ServicePort   int
	ServiceIp     string
	MysqlDb       string
	RedisDb       int
	LogLevel      string
	LogStacktrace bool
}

type KeepaliveConfig struct {
	ClientTime    int
	ClientTimeout int

	ServerTime     int
	ServerTimeout  int
	ServerMiniTime int
}

type OssConfig struct {
	BrandImage      string
	SeriesImage     string
	AccessKeyId     string
	AccessKeySecret string
	Endpoint        string
	Bucket          string
	AvatarBucket    string
	IconBucket      string
}

type Coupon struct {
	Url        string
	Action     string
	ExpireDate string
}

type RPCConfig struct {
	Keepalive KeepaliveConfig
	Common    RPCNode
}

type Configure struct {
	// 视频间隔
	VideoInterval int
	// 课程
	Courses []string
	// 并发数
	Channel int
	// 做题课程
	QuizCourses []string

	// 是否全部网页需要打开
	IsOpenAll bool
	OnlyVisit bool
	VisitCount int
}

var Conf *Configure
var v *viper.Viper

// LoadConfig 装载配置文件
func LoadConfig(filename string) error {
	configPath, configName := filepath.Split(filename)
	fileList := strings.Split(configName, ".")
	if len(fileList) < 2 {
		return fmt.Errorf("%s", "文件格式不正确")
	}

	configName = fileList[0]
	fileExt := fileList[1]
	var err error
	if fileExt == "json" {
		err = LoadConfigFromJson(configName, configPath)
	} else if fileExt == "yaml" || fileExt == "yml" {
		err = LoadConfigFromYaml(configName, configPath)
	} else {
		err = fmt.Errorf("%s", "不支持的文件格式")
	}

	// 出错直接返回
	if err != nil {
		return err
	}
	return nil
}

// LoadConfigFromYaml 装载yaml类型的配置文件
func LoadConfigFromYaml(configName, configPath string) error {
	v = viper.New()
	v.SetConfigName(configName)
	v.AddConfigPath(configPath)
	//设置配置文件类型
	v.SetConfigType("yaml")

	if err := v.ReadInConfig(); err != nil {
		return err
	}

	return parseConfig()
}

// LoadConfigFromJson 装载json类型的配置文件
func LoadConfigFromJson(configName, configPath string) error {
	v = viper.New()
	v.SetConfigName(configName)
	v.AddConfigPath(configPath)

	//设置配置文件类型
	v.SetConfigType("json")
	if err := v.ReadInConfig(); err != nil {
		return err
	}

	return parseConfig()
}

func parseConfig() error {
	Conf = &Configure{}
	if err := v.Unmarshal(Conf); err != nil {
		return err
	}

	return nil
}