package controllers

import (
	"api/config"
	"api/database"
	"api/models"
	"api/utils"
	"log"
	"strconv"
	"strings"
	"time"

	"github.com/gofiber/fiber/v2"
	"github.com/golang-jwt/jwt/v5"
	"golang.org/x/crypto/bcrypt"
)

// Login - Login. Returns a JWT token on the response body
func Login(c *fiber.Ctx) error {

	var data map[string]string

	if err := c.BodyParser(&data); err != nil {
		log.Printf("Bad Request on parse: %v\n", err)
		return fiber.ErrBadRequest
	}

	var user models.User

	database.DB.Where("email = ?", data["email"]).First(&user)

	if user.ID == 0 {
		return c.JSON(fiber.Map{
			"message": "Usuário não encontrado",
			"token":   ""})
	}

	if user.Password == nil {
		return c.JSON(fiber.Map{
			"message": "Usuário com cadastro imcompleto",
			"token":   ""})
	}

	if err := bcrypt.CompareHashAndPassword(user.Password, []byte(data["password"])); err != nil {
		return c.JSON(fiber.Map{
			"message": "Senha inválida",
			"token":   ""})
	}

	if user.Blocked == "S" {
		return c.JSON(fiber.Map{
			"message": "Usuário bloqueado",
			"token":   ""})
	}

	claims := &jwt.RegisteredClaims{
		ExpiresAt: &jwt.NumericDate{Time: time.Now().Add(12 * time.Hour)}, // Token expiration time
		Issuer:    strconv.Itoa(int(user.ID)),                             // User that creates the token
	}

	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)

	tk, err := token.SignedString([]byte(config.Conf.ApiSecret))

	if err != nil {
		return fiber.ErrInternalServerError
	}

	return c.JSON(fiber.Map{
		"message": "",
		"uid":     user.ID,
		"token":   tk})
}

// Register/AdUser - Adds or register a user to the database
func AddUser(c *fiber.Ctx) error {

	var data map[string]string

	if err := c.BodyParser(&data); err != nil {
		return c.JSON(fiber.Map{
			"message": "Dados inválidos"})

	}

	if data["name"] == "" || data["email"] == "" || data["url"] == "" || data["cpfcnpj"] == "" || data["password"] == "" || data["channel"] == "" || data["usertype"] == "" || data["companyname"] == "" {
		return c.JSON(fiber.Map{
			"message": "Dados inválidos"})
	}

	passwd, _ := utils.HashPassword(data["password"])

	var user models.User

	database.DB.Where("email = ?", data["email"]).First(&user)

	if user.ID != 0 {
		return c.JSON(fiber.Map{
			"message": "Usuário já cadastrado"})
	}

	database.DB.Where("channel = ?", strings.ToLower(data["channel"])).First(&user)

	if user.ID != 0 {
		return c.JSON(fiber.Map{
			"message": "Canal já em uso"})
	}

	user = models.User{
		Name:        data["name"],
		Email:       data["email"],
		CompanyName: data["companyname"],
		Url:         data["url"],
		Password:    passwd,
		Channel:     strings.ToLower(data["channel"]),
		CpfCnpj:     data["cpfcnpj"],
		UserType:    data["usertype"],
		Blocked:     "N",
		Cancelled:   "N",
	}

	database.DB.Create(&user)

	if user.ID == 0 {
		return c.JSON(fiber.Map{
			"message": "Erro ao criar usuário"})
	}

	return c.JSON(user)
}

// GetOwnUser - Returns the current	user
func GetOwnUser(c *fiber.Ctx) error {

	user := c.Locals("user").(models.User)

	return c.JSON(user)
}

// GetAllUsers - Returns all users
func GetAllUsers(c *fiber.Ctx) error {

	var users []models.User

	user := c.Locals("user").(models.User)

	if user.UserType != "A" {
		return fiber.ErrUnauthorized
	}

	database.DB.Find(&users)

	// if len(users) == 0 {
	// 	return fiber.ErrNotFound
	// }

	return c.JSON(users)
}

func GetUserByEmail(c *fiber.Ctx) error {

	user := c.Locals("user").(models.User)

	if user.UserType != "A" {
		return fiber.ErrUnauthorized
	}

	email := c.Params("email")

	database.DB.Where("email = ?", email).First(&user)

	// if user.ID == 0 {
	// 	return fiber.ErrNotFound
	// }

	return c.JSON(user)
}

func Checkuser(c *fiber.Ctx) error {

	var user models.User

	email := c.Params("email")

	database.DB.Where("email = ?", email).First(&user)

	// if user.ID == 0 {
	// 	return fiber.ErrNotFound
	// }

	return c.JSON(user)
}

func Checkusertest(c *fiber.Ctx) error {

	var usertest models.UserTest

	email := c.Params("email")

	database.DB.Where("email = ?", email).First(&usertest)

	// if user.ID == 0 {
	// 	return fiber.ErrNotFound
	// }

	return c.JSON(usertest)
}