package users

import (
	"regexp"

	jwt "github.com/golang-jwt/jwt/v4"
)

type AuthToken struct {
	Key                  string      `json:"key"`
	Name                 string      `json:"name"`
	Created              int64       `json:"createdAt"`
	Expires              int64       `json:"expiresAt"`
	BelongsTo            uint        `json:"belongsTo"`
	Permissions          Permissions `json:"Permissions"`
	jwt.RegisteredClaims `json:"-"`
}

type Permissions struct {
	Api      bool `json:"api"`
	Admin    bool `json:"admin"`
	Execute  bool `json:"execute"`
	Create   bool `json:"create"`
	Rename   bool `json:"rename"`
	Modify   bool `json:"modify"`
	Delete   bool `json:"delete"`
	Share    bool `json:"share"`
	Download bool `json:"download"`
}

// SortingSettings represents the sorting settings.
type Sorting struct {
	By  string `json:"by"`
	Asc bool   `json:"asc"`
}

// User describes a user.
type User struct {
	StickySidebar        bool                 `json:"stickySidebar"`
	DarkMode             bool                 `json:"darkMode"`
	DisableSettings      bool                 `json:"disableSettings"`
	ID                   uint                 `storm:"id,increment" json:"id"`
	Username             string               `storm:"unique" json:"username"`
	Password             string               `json:"password,omitempty"`
	Scope                string               `json:"scope"`
	Locale               string               `json:"locale"`
	LockPassword         bool                 `json:"lockPassword"`
	ViewMode             string               `json:"viewMode"`
	SingleClick          bool                 `json:"singleClick"`
	Sorting              Sorting              `json:"sorting"`
	Perm                 Permissions          `json:"perm"`
	Commands             []string             `json:"commands"`
	Rules                []Rule               `json:"rules"`
	ApiKeys              map[string]AuthToken `json:"apiKeys,omitempty"`
	ShowHidden           bool                 `json:"showHidden"`
	DateFormat           bool                 `json:"dateFormat"`
	GallerySize          int                  `json:"gallerySize"`
	ThemeColor           string               `json:"themeColor"`
	QuickDownload        bool                 `json:"quickDownload"`
	DisableOnlyOfficeExt string               `json:"disableOnlyOfficeExt"`
}

var PublicUser = User{
	Username:     "publicUser", // temp user not registered
	Password:     "publicUser", // temp user not registered
	Scope:        "/does/not/exist",
	ViewMode:     "normal",
	LockPassword: true,
	Perm: Permissions{
		Create:   false,
		Rename:   false,
		Modify:   false,
		Delete:   false,
		Share:    false,
		Download: true,
		Admin:    false,
		Api:      false,
	},
}

// GetRules implements rules.Provider.
func (u *User) GetRules() []Rule {
	return u.Rules
}

// CanExecute checks if an user can execute a specific command.
func (u *User) CanExecute(command string) bool {
	if !u.Perm.Execute {
		return false
	}

	for _, cmd := range u.Commands {
		if regexp.MustCompile(cmd).MatchString(command) {
			return true
		}
	}

	return false
}