package user

import (
	"time"

	"git.umbach.dev/app-idea/rest-api/modules/database"
	"git.umbach.dev/app-idea/rest-api/modules/structs"
	"github.com/gofiber/fiber/v2"
	log "github.com/sirupsen/logrus"
	"gorm.io/gorm"
)

func createUserActivation(userId string) (string, error) {
	userActivationId, err := generateRandomString(16, 1)

	if err != nil {
		log.Warnln("Failed to generate random string")
		return "", err
	}

	db := database.DB

	db.Create(structs.UserActivation{Id: userActivationId, UserId: userId, Expires: getUserActivationExpiresTime()})

	return userActivationId, nil
}

func deleteExpiredUserActivations(db *gorm.DB) {
	var res string

	db.Raw("DELETE FROM user_activations WHERE expires < ?", time.Now()).Scan(&res)
}

func ActivateUser(c *fiber.Ctx) error {
	// swagger:operation POST /user/activate/:id User activation
	// ---
	// summary: Activate user
	// responses:
	//   '200':
	//     description: User was activated
	//   '401':
	//     description: Activation Id is incorrect or expired

	db := database.DB

	deleteExpiredUserActivations(db)

	userActivation := structs.UserActivation{Id: c.Params("id")}

	db.Select("user_id").Where("id = ?", c.Params("id")).Find(&userActivation)

	if userActivation.UserId == "" {
		return c.SendStatus(fiber.StatusUnauthorized)
	}

	db.Delete(userActivation)

	db.Model(structs.User{Id: userActivation.UserId}).Update("state", 0)

	return c.SendStatus(fiber.StatusOK)
}

func getUserActivationExpiresTime() time.Time {
	return time.Now().Add(time.Minute * time.Duration(cfg.Settings.Expires.UserActivation))
}