func (c *Config) Index() string {
	if c.IndexUrl == "" {
		return "/"
	}
	if c.IndexUrl[0] != '/' {
		return "/" + c.IndexUrl
	}
	return c.IndexUrl
}
Index return the index url without prefix.
package config
import (
	"encoding/json"
	"fmt"
	"html/template"
	"io/ioutil"
	"path/filepath"
	"reflect"
	"strconv"
	"strings"
	"sync"
	"sync/atomic"
	"github.com/GoAdminGroup/go-admin/modules/logger"
	"github.com/GoAdminGroup/go-admin/modules/utils"
	"github.com/GoAdminGroup/go-admin/plugins/admin/modules/form"
	"gopkg.in/ini.v1"
	"gopkg.in/yaml.v2"
)
type Database struct {
	Host       string            `json:"host,omitempty" yaml:"host,omitempty" ini:"host,omitempty"`
	Port       string            `json:"port,omitempty" yaml:"port,omitempty" ini:"port,omitempty"`
	User       string            `json:"user,omitempty" yaml:"user,omitempty" ini:"user,omitempty"`
	Pwd        string            `json:"pwd,omitempty" yaml:"pwd,omitempty" ini:"pwd,omitempty"`
	Name       string            `json:"name,omitempty" yaml:"name,omitempty" ini:"name,omitempty"`
	MaxIdleCon int               `json:"max_idle_con,omitempty" yaml:"max_idle_con,omitempty" ini:"max_idle_con,omitempty"`
	MaxOpenCon int               `json:"max_open_con,omitempty" yaml:"max_open_con,omitempty" ini:"max_open_con,omitempty"`
	Driver     string            `json:"driver,omitempty" yaml:"driver,omitempty" ini:"driver,omitempty"`
	DriverMode string            `json:"driver_mode,omitempty" yaml:"driver_mode,omitempty" ini:"driver_mode,omitempty"`
	File       string            `json:"file,omitempty" yaml:"file,omitempty" ini:"file,omitempty"`
	Dsn        string            `json:"dsn,omitempty" yaml:"dsn,omitempty" ini:"dsn,omitempty"`
	Params     map[string]string `json:"params,omitempty" yaml:"params,omitempty" ini:"params,omitempty"`
}
func (d Database) GetDSN() string {
	if d.Dsn != "" {
		return d.Dsn
	}
	if d.Driver == DriverMysql {
		return d.User + ":" + d.Pwd + "@tcp(" + d.Host + ":" + d.Port + ")/" +
			d.Name + d.ParamStr()
	}
	if d.Driver == DriverPostgresql {
		return fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s"+d.ParamStr(),
			d.Host, d.Port, d.User, d.Pwd, d.Name)
	}
	if d.Driver == DriverMssql {
		return fmt.Sprintf("user id=%s;password=%s;server=%s;port=%s;database=%s;"+d.ParamStr(),
			d.User, d.Pwd, d.Host, d.Port, d.Name)
	}
	if d.Driver == DriverSqlite {
		return d.File + d.ParamStr()
	}
	return ""
}
func (d Database) ParamStr() string {
	p := ""
	if d.Params == nil {
		d.Params = make(map[string]string)
	}
	if d.Driver == DriverMysql || d.Driver == DriverSqlite {
		if d.Driver == DriverMysql {
			if _, ok := d.Params["charset"]; !ok {
				d.Params["charset"] = "utf8mb4"
			}
		}
		if len(d.Params) > 0 {
			p = "?"
			for k, v := range d.Params {
				p += k + "=" + v + "&"
			}
			p = p[:len(p)-1]
		}
	}
	if d.Driver == DriverMssql {
		if _, ok := d.Params["encrypt"]; !ok {
			d.Params["encrypt"] = "disable"
		}
		for k, v := range d.Params {
			p += k + "=" + v + ";"
		}
		p = p[:len(p)-1]
	}
	if d.Driver == DriverPostgresql {
		if _, ok := d.Params["sslmode"]; !ok {
			d.Params["sslmode"] = "disable"
		}
		p = " "
		for k, v := range d.Params {
			p += k + "=" + v + " "
		}
		p = p[:len(p)-1]
	}
	return p
}
type DatabaseList map[string]Database
func (d DatabaseList) GetDefault() Database {
	return d["default"]
}
func (d DatabaseList) Add(key string, db Database) {
	d[key] = db
}
func (d DatabaseList) GroupByDriver() map[string]DatabaseList {
	drivers := make(map[string]DatabaseList)
	for key, item := range d {
		if driverList, ok := drivers[item.Driver]; ok {
			driverList.Add(key, item)
		} else {
			drivers[item.Driver] = make(DatabaseList)
			drivers[item.Driver].Add(key, item)
		}
	}
	return drivers
}
func (d DatabaseList) JSON() string {
	return utils.JSON(d)
}
func (d DatabaseList) Copy() DatabaseList {
	var c = make(DatabaseList)
	for k, v := range d {
		c[k] = v
	}
	return c
}
func (d DatabaseList) Connections() []string {
	conns := make([]string, len(d))
	count := 0
	for key := range d {
		conns[count] = key
		count++
	}
	return conns
}
func GetDatabaseListFromJSON(m string) DatabaseList {
	var d = make(DatabaseList)
	if m == "" {
		panic("wrong config")
	}
	_ = json.Unmarshal([]byte(m), &d)
	return d
}
const (
	EnvTest = "test"
	EnvLocal = "local"
	EnvProd = "prod"
	DriverMysql = "mysql"
	DriverSqlite = "sqlite"
	DriverPostgresql = "postgresql"
	DriverMssql = "mssql"
)
type Store struct {
	Path   string `json:"path,omitempty" yaml:"path,omitempty" ini:"path,omitempty"`
	Prefix string `json:"prefix,omitempty" yaml:"prefix,omitempty" ini:"prefix,omitempty"`
}
func (s Store) URL(suffix string) string {
	if len(suffix) > 4 && suffix[:4] == "http" {
		return suffix
	}
	if s.Prefix == "" {
		if suffix[0] == '/' {
			return suffix
		}
		return "/" + suffix
	}
	if s.Prefix[0] == '/' {
		if suffix[0] == '/' {
			return s.Prefix + suffix
		}
		return s.Prefix + "/" + suffix
	}
	if suffix[0] == '/' {
		if len(s.Prefix) > 4 && s.Prefix[:4] == "http" {
			return s.Prefix + suffix
		}
		return "/" + s.Prefix + suffix
	}
	if len(s.Prefix) > 4 && s.Prefix[:4] == "http" {
		return s.Prefix + "/" + suffix
	}
	return "/" + s.Prefix + "/" + suffix
}
func (s Store) JSON() string {
	if s.Path == "" && s.Prefix == "" {
		return ""
	}
	return utils.JSON(s)
}
func GetStoreFromJSON(m string) Store {
	var s Store
	if m == "" {
		return s
	}
	_ = json.Unmarshal([]byte(m), &s)
	return s
}
type Config struct {
	Databases DatabaseList `json:"database,omitempty" yaml:"database,omitempty" ini:"database,omitempty"`
	AppID string `json:"app_id,omitempty" yaml:"app_id,omitempty" ini:"app_id,omitempty"`
	Domain string `json:"domain,omitempty" yaml:"domain,omitempty" ini:"domain,omitempty"`
	Language string `json:"language,omitempty" yaml:"language,omitempty" ini:"language,omitempty"`
	UrlPrefix string `json:"prefix,omitempty" yaml:"prefix,omitempty" ini:"prefix,omitempty"`
	Theme string `json:"theme,omitempty" yaml:"theme,omitempty" ini:"theme,omitempty"`
	Store Store `json:"store,omitempty" yaml:"store,omitempty" ini:"store,omitempty"`
	Title string `json:"title,omitempty" yaml:"title,omitempty" ini:"title,omitempty"`
	Logo template.HTML `json:"logo,omitempty" yaml:"logo,omitempty" ini:"logo,omitempty"`
	MiniLogo template.HTML `json:"mini_logo,omitempty" yaml:"mini_logo,omitempty" ini:"mini_logo,omitempty"`
	IndexUrl string `json:"index,omitempty" yaml:"index,omitempty" ini:"index,omitempty"`
	LoginUrl string `json:"login_url,omitempty" yaml:"login_url,omitempty" ini:"login_url,omitempty"`
	Debug bool `json:"debug,omitempty" yaml:"debug,omitempty" ini:"debug,omitempty"`
	Env string `json:"env,omitempty" yaml:"env,omitempty" ini:"env,omitempty"`
	InfoLogPath string `json:"info_log,omitempty" yaml:"info_log,omitempty" ini:"info_log,omitempty"`
	ErrorLogPath string `json:"error_log,omitempty" yaml:"error_log,omitempty" ini:"error_log,omitempty"`
	AccessLogPath string `json:"access_log,omitempty" yaml:"access_log,omitempty" ini:"access_log,omitempty"`
	AccessAssetsLogOff bool `json:"access_assets_log_off,omitempty" yaml:"access_assets_log_off,omitempty" ini:"access_assets_log_off,omitempty"`
	SqlLog bool `json:"sql_log,omitempty" yaml:"sql_log,omitempty" ini:"sql_log,omitempty"`
	AccessLogOff bool `json:"access_log_off,omitempty" yaml:"access_log_off,omitempty" ini:"access_log_off,omitempty"`
	InfoLogOff   bool `json:"info_log_off,omitempty" yaml:"info_log_off,omitempty" ini:"info_log_off,omitempty"`
	ErrorLogOff  bool `json:"error_log_off,omitempty" yaml:"error_log_off,omitempty" ini:"error_log_off,omitempty"`
	Logger Logger `json:"logger,omitempty" yaml:"logger,omitempty" ini:"logger,omitempty"`
	ColorScheme string `json:"color_scheme,omitempty" yaml:"color_scheme,omitempty" ini:"color_scheme,omitempty"`
	SessionLifeTime int `json:"session_life_time,omitempty" yaml:"session_life_time,omitempty" ini:"session_life_time,omitempty"`
	AssetUrl string `json:"asset_url,omitempty" yaml:"asset_url,omitempty" ini:"asset_url,omitempty"`
	FileUploadEngine FileUploadEngine `json:"file_upload_engine,omitempty" yaml:"file_upload_engine,omitempty" ini:"file_upload_engine,omitempty"`
	CustomHeadHtml template.HTML `json:"custom_head_html,omitempty" yaml:"custom_head_html,omitempty" ini:"custom_head_html,omitempty"`
	CustomFootHtml template.HTML `json:"custom_foot_html,omitempty" yaml:"custom_foot_html,omitempty" ini:"custom_foot_html,omitempty"`
	FooterInfo template.HTML `json:"footer_info,omitempty" yaml:"footer_info,omitempty" ini:"footer_info,omitempty"`
	LoginTitle string `json:"login_title,omitempty" yaml:"login_title,omitempty" ini:"login_title,omitempty"`
	LoginLogo template.HTML `json:"login_logo,omitempty" yaml:"login_logo,omitempty" ini:"login_logo,omitempty"`
	AuthUserTable string `json:"auth_user_table,omitempty" yaml:"auth_user_table,omitempty" ini:"auth_user_table,omitempty"`
	Extra ExtraInfo `json:"extra,omitempty" yaml:"extra,omitempty" ini:"extra,omitempty"`
	Animation PageAnimation `json:"animation,omitempty" yaml:"animation,omitempty" ini:"animation,omitempty"`
	NoLimitLoginIP bool `json:"no_limit_login_ip,omitempty" yaml:"no_limit_login_ip,omitempty" ini:"no_limit_login_ip,omitempty"`
	SiteOff bool `json:"site_off,omitempty" yaml:"site_off,omitempty" ini:"site_off,omitempty"`
	HideConfigCenterEntrance bool `json:"hide_config_center_entrance,omitempty" yaml:"hide_config_center_entrance,omitempty" ini:"hide_config_center_entrance,omitempty"`
	ProhibitConfigModification bool `json:"prohibit_config_modification,omitempty" yaml:"prohibit_config_modification,omitempty" ini:"prohibit_config_modification,omitempty"`
	HideAppInfoEntrance bool `json:"hide_app_info_entrance,omitempty" yaml:"hide_app_info_entrance,omitempty" ini:"hide_app_info_entrance,omitempty"`
	HideToolEntrance bool `json:"hide_tool_entrance,omitempty" yaml:"hide_tool_entrance,omitempty" ini:"hide_tool_entrance,omitempty"`
	HidePluginEntrance bool `json:"hide_plugin_entrance,omitempty" yaml:"hide_plugin_entrance,omitempty" ini:"hide_plugin_entrance,omitempty"`
	Custom404HTML template.HTML `json:"custom_404_html,omitempty" yaml:"custom_404_html,omitempty" ini:"custom_404_html,omitempty"`
	Custom403HTML template.HTML `json:"custom_403_html,omitempty" yaml:"custom_403_html,omitempty" ini:"custom_403_html,omitempty"`
	Custom500HTML template.HTML `json:"custom_500_html,omitempty" yaml:"custom_500_html,omitempty" ini:"custom_500_html,omitempty"`
	UpdateProcessFn UpdateConfigProcessFn `json:"-" yaml:"-" ini:"-"`
	OpenAdminApi bool `json:"open_admin_api,omitempty" yaml:"open_admin_api,omitempty" ini:"open_admin_api,omitempty"`
	HideVisitorUserCenterEntrance bool `json:"hide_visitor_user_center_entrance,omitempty" yaml:"hide_visitor_user_center_entrance,omitempty" ini:"hide_visitor_user_center_entrance,omitempty"`
	ExcludeThemeComponents []string `json:"exclude_theme_components,omitempty" yaml:"exclude_theme_components,omitempty" ini:"exclude_theme_components,omitempty"`
	BootstrapFilePath string `json:"bootstrap_file_path,omitempty" yaml:"bootstrap_file_path,omitempty" ini:"bootstrap_file_path,omitempty"`
	GoModFilePath string `json:"go_mod_file_path,omitempty" yaml:"go_mod_file_path,omitempty" ini:"go_mod_file_path,omitempty"`
	AllowDelOperationLog bool `json:"allow_del_operation_log,omitempty" yaml:"allow_del_operation_log,omitempty" ini:"allow_del_operation_log,omitempty"`
	OperationLogOff bool `json:"operation_log_off,omitempty" yaml:"operation_log_off,omitempty" ini:"operation_log_off,omitempty"`
	AssetRootPath string `json:"asset_root_path,omitempty" yaml:"asset_root_path,omitempty" ini:"asset_root_path,omitempty"`
	URLFormat URLFormat `json:"url_format,omitempty" yaml:"url_format,omitempty" ini:"url_format,omitempty"`
	prefix string       `json:"-" yaml:"-" ini:"-"`
	lock   sync.RWMutex `json:"-" yaml:"-" ini:"-"`
}
type Logger struct {
	Encoder EncoderCfg `json:"encoder,omitempty" yaml:"encoder,omitempty" ini:"encoder,omitempty"`
	Rotate  RotateCfg  `json:"rotate,omitempty" yaml:"rotate,omitempty" ini:"rotate,omitempty"`
	Level   int8       `json:"level,omitempty" yaml:"level,omitempty" ini:"level,omitempty"`
}
type EncoderCfg struct {
	TimeKey       string `json:"time_key,omitempty" yaml:"time_key,omitempty" ini:"time_key,omitempty"`
	LevelKey      string `json:"level_key,omitempty" yaml:"level_key,omitempty" ini:"level_key,omitempty"`
	NameKey       string `json:"name_key,omitempty" yaml:"name_key,omitempty" ini:"name_key,omitempty"`
	CallerKey     string `json:"caller_key,omitempty" yaml:"caller_key,omitempty" ini:"caller_key,omitempty"`
	MessageKey    string `json:"message_key,omitempty" yaml:"message_key,omitempty" ini:"message_key,omitempty"`
	StacktraceKey string `json:"stacktrace_key,omitempty" yaml:"stacktrace_key,omitempty" ini:"stacktrace_key,omitempty"`
	Level         string `json:"level,omitempty" yaml:"level,omitempty" ini:"level,omitempty"`
	Time          string `json:"time,omitempty" yaml:"time,omitempty" ini:"time,omitempty"`
	Duration      string `json:"duration,omitempty" yaml:"duration,omitempty" ini:"duration,omitempty"`
	Caller        string `json:"caller,omitempty" yaml:"caller,omitempty" ini:"caller,omitempty"`
	Encoding      string `json:"encoding,omitempty" yaml:"encoding,omitempty" ini:"encoding,omitempty"`
}
type RotateCfg struct {
	MaxSize    int  `json:"max_size,omitempty" yaml:"max_size,omitempty" ini:"max_size,omitempty"`
	MaxBackups int  `json:"max_backups,omitempty" yaml:"max_backups,omitempty" ini:"max_backups,omitempty"`
	MaxAge     int  `json:"max_age,omitempty" yaml:"max_age,omitempty" ini:"max_age,omitempty"`
	Compress   bool `json:"compress,omitempty" yaml:"compress,omitempty" ini:"compress,omitempty"`
}
type URLFormat struct {
	Info       string `json:"info,omitempty" yaml:"info,omitempty" ini:"info,omitempty"`
	Detail     string `json:"detail,omitempty" yaml:"detail,omitempty" ini:"detail,omitempty"`
	Create     string `json:"create,omitempty" yaml:"create,omitempty" ini:"create,omitempty"`
	Delete     string `json:"delete,omitempty" yaml:"delete,omitempty" ini:"delete,omitempty"`
	Export     string `json:"export,omitempty" yaml:"export,omitempty" ini:"export,omitempty"`
	Edit       string `json:"edit,omitempty" yaml:"edit,omitempty" ini:"edit,omitempty"`
	ShowEdit   string `json:"show_edit,omitempty" yaml:"show_edit,omitempty" ini:"show_edit,omitempty"`
	ShowCreate string `json:"show_create,omitempty" yaml:"show_create,omitempty" ini:"show_create,omitempty"`
	Update     string `json:"update,omitempty" yaml:"update,omitempty" ini:"update,omitempty"`
}
func (f URLFormat) SetDefault() URLFormat {
	f.Detail = utils.SetDefault(f.Detail, "", "/info/:__prefix/detail")
	f.ShowEdit = utils.SetDefault(f.ShowEdit, "", "/info/:__prefix/edit")
	f.ShowCreate = utils.SetDefault(f.ShowCreate, "", "/info/:__prefix/new")
	f.Edit = utils.SetDefault(f.Edit, "", "/edit/:__prefix")
	f.Create = utils.SetDefault(f.Create, "", "/new/:__prefix")
	f.Delete = utils.SetDefault(f.Delete, "", "/delete/:__prefix")
	f.Export = utils.SetDefault(f.Export, "", "/export/:__prefix")
	f.Info = utils.SetDefault(f.Info, "", "/info/:__prefix")
	f.Update = utils.SetDefault(f.Update, "", "/update/:__prefix")
	return f
}
type ExtraInfo map[string]interface{}
type UpdateConfigProcessFn func(values form.Values) (form.Values, error)
type PageAnimation struct {
	Type     string  `json:"type,omitempty" yaml:"type,omitempty" ini:"type,omitempty"`
	Duration float32 `json:"duration,omitempty" yaml:"duration,omitempty" ini:"duration,omitempty"`
	Delay    float32 `json:"delay,omitempty" yaml:"delay,omitempty" ini:"delay,omitempty"`
}
func (p PageAnimation) JSON() string {
	if p.Type == "" {
		return ""
	}
	return utils.JSON(p)
}
type FileUploadEngine struct {
	Name   string                 `json:"name,omitempty" yaml:"name,omitempty" ini:"name,omitempty"`
	Config map[string]interface{} `json:"config,omitempty" yaml:"config,omitempty" ini:"config,omitempty"`
}
func (f FileUploadEngine) JSON() string {
	if f.Name == "" {
		return ""
	}
	if len(f.Config) == 0 {
		f.Config = nil
	}
	return utils.JSON(f)
}
func GetFileUploadEngineFromJSON(m string) FileUploadEngine {
	var f FileUploadEngine
	if m == "" {
		return f
	}
	_ = json.Unmarshal([]byte(m), &f)
	return f
}
func (c *Config) GetIndexURL() string {
	index := c.Index()
	if index == "/" {
		return c.Prefix()
	}
	return c.Prefix() + index
}
func (c *Config) Url(suffix string) string {
	if c.prefix == "/" {
		return suffix
	}
	if suffix == "/" {
		return c.prefix
	}
	return c.prefix + suffix
}
func (c *Config) IsTestEnvironment() bool {
	return c.Env == EnvTest
}
func (c *Config) IsLocalEnvironment() bool {
	return c.Env == EnvLocal
}
func (c *Config) IsProductionEnvironment() bool {
	return c.Env == EnvProd
}
func (c *Config) IsNotProductionEnvironment() bool {
	return c.Env != EnvProd
}
func (c *Config) IsAllowConfigModification() bool {
	return !c.ProhibitConfigModification
}
func (c *Config) URLRemovePrefix(url string) string {
	if url == c.prefix {
		return "/"
	}
	if c.prefix == "/" {
		return url
	}
	return strings.Replace(url, c.prefix, "", 1)
}