package auth

import (
	"net/http"
	"hacklab.nilfm.cc/quartzgun/cookie"
	"time"
)

type User struct {
	Name      string
	Pass      string
	Session   string
	LoginTime time.Time
	LastSeen  time.Time

	Data map[string]interface{}
}

type UserStore interface {
	InitiateSession(user string, password string, ttl int) (string, error)
	ValidateUser(user string, sessionId string) (bool, error)
	EndSession(user string) error
	AddUser(user string, password string) error
	DeleteUser(user string) error
	ChangePassword(user string, oldPassword string, newPassword string) error
	GetLastLoginTime(user string) (time.Time, error)
	GetLastTimeSeen(user string) (time.Time, error)
	SetData(user string, key string, value interface{}) error
	GetData(user string, key string) (interface{}, error)
	GrantToken(user, password string, ttl int) (string, error)
	ValidateToken(token string) (bool, error)
	ValidateTokenWithScopes(token string, scopes map[string]string) (bool, error)
}

func Login(user string, password string, userStore UserStore, w http.ResponseWriter, t int) error {
	session, loginErr := userStore.InitiateSession(user, password, t)
	if loginErr == nil {
		cookie.StoreToken("user", user, w, t)
		cookie.StoreToken("session", session, w, t)
		csrfToken := cookie.GenToken(64)
		cookie.StoreToken("csrfToken", csrfToken, w, t)
		userStore.SetData(user, "csrfToken", csrfToken)
		return nil
	}
	return loginErr
}

func Logout(user string, userStore UserStore, w http.ResponseWriter) error {
	logoutErr := userStore.EndSession(user)
	if logoutErr == nil {
		cookie.StoreToken("user", "", w, 0)
		cookie.StoreToken("session", "", w, 0)
		cookie.StoreToken("csrfToken", "", w, 0)
		userStore.SetData(user, "csrfToken", "")
		return nil
	}
	return logoutErr
}