package auth

import (
	"errors"

	"git.jasinco.work/wgcl/internal/federate"
	"git.jasinco.work/wgcl/internal/logger"
	"github.com/gin-gonic/gin"
	"go.uber.org/zap"
)

var Driver federate.AUTH = nil

type login struct {
	Username string `form:"username" json:"username" binding:"required"`
	Password string `form:"password" json:"password" binding:"required"`
}

var ErrBadRequest = errors.New("Failed to parse request")
var ErrNoDriver = errors.New("No Auth Driver")

func UserLogin(c *gin.Context) (*User, error) {
	var cred login
	if c.ShouldBind(&cred) != nil {
		return nil, ErrBadRequest
	}
	if Driver == nil {
		return nil, ErrNoDriver
	}

	userdn, err := Driver.UserAuthenticate(cred.Username, cred.Password)
	if err == nil {
		var power uint16 = 0

		if stat, err := Driver.UserAuthorizeWG(userdn); err == nil {
			if stat {
				power |= AuthorizeWG
			}
		} else {
			logger.Logger.Error(err.Error())
		}
		logger.Logger.Info("user authorize", zap.String("user", userdn), zap.Uint16("power", power))

		u := &User{
			UserName:   userdn,
			Authorized: power,
		}
		u.setupClaim()
		return u, nil
	}
	return nil, err
}