package controllers

import (
	"fmt"
	"net/http"

	"github.com/gin-gonic/gin"

	"git.dynamicdiscord.de/kalipso/zineshop/models"
	"git.dynamicdiscord.de/kalipso/zineshop/repositories"
	"git.dynamicdiscord.de/kalipso/zineshop/services"
)

type UserController struct{}

func NewUserController() UserController {
	return UserController{}
}

func (uc *UserController) Register(c *gin.Context) {
	//Get the email/passwd off req body
	var body struct {
		Name     string
		Email    string
		Password string
	}

	err := c.Bind(&body)

	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{
			"error": "Failed to read body",
		})

		return
	}

	_, err = services.Users.Register(body.Name, body.Email, body.Password)

	if err != nil {
		fmt.Println("Error: ", err)
		c.JSON(http.StatusBadRequest, gin.H{
			"error": "Failed to create user",
		})

		return
	}

	//respond
	c.JSON(http.StatusOK, gin.H{})
}

func (uc *UserController) Login(c *gin.Context) {
	//Get the email/passwd off req body
	var body struct {
		Email    string
		Password string
	}

	err := c.Bind(&body)

	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{
			"error": "Login Failed",
		})

		return
	}

	tokenString, err := services.Users.Login(body.Email, body.Password)

	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{
			"error": "Login Failed",
		})

		return
	}

	// send it back
	c.SetSameSite(http.SameSiteLaxMode)
	c.SetCookie("Authorization", tokenString, 3600*24, "", "", false, true)
	c.JSON(http.StatusOK, gin.H{})
}

func (uc *UserController) Validate(c *gin.Context) {
	user, exists := c.Get("user")

	if exists {
		c.JSON(http.StatusOK, gin.H{
			"message": fmt.Sprintf("Logged in with userID: %d", user.(models.User).ID),
		})
	} else {
		c.JSON(http.StatusOK, gin.H{
			"message": "Currently not logged in.",
		})
	}
}

func (rc *UserController) LoginView(c *gin.Context) {
	//if already logged in
	_, exists := c.Get("user")
	if exists {
		c.HTML(http.StatusOK, "index.html", CreateSessionData(c, gin.H{}))
		return
	}

	data := gin.H{
		"error": "",
	}

	c.HTML(http.StatusOK, "login.html", CreateSessionData(c, data))
}

func (rc *UserController) LoginHandler(c *gin.Context) {
	email := c.PostForm("email")
	password := c.PostForm("password")

	tokenString, err := services.Users.Login(email, password)

	if err != nil {
		data := gin.H{
			"error": "Login Failed. Wrong Email or Password!",
		}

		c.HTML(http.StatusOK, "login.html", data)
		return
	}

	//set this so that CreateSessionData works
	//otherwise header would not be generated correctly
	user, _ := repositories.Users.GetByEmail(email)
	c.Set("user", user)

	// send it back
	//c.SetSameSite(http.SameSiteLaxMode)
	c.SetCookie("Authorization", tokenString, 3600*24, "", "", false, true)
	c.HTML(http.StatusOK, "login.html", CreateSessionData(c, gin.H{}))
}

func CreateSessionData(c *gin.Context, extra any) gin.H {
	_, exists := c.Get("user")

	return gin.H{
		"loggedIn": exists,
		"data":     extra,
	}
}

func (rc *UserController) RegisterHandler(c *gin.Context) {
	name := c.PostForm("name")
	email := c.PostForm("email")
	password := c.PostForm("password")

	_, err := services.Users.Register(name, email, password)

	if err != nil {
		data := gin.H{
			"error":   "Registering Failed.",
			"success": "",
		}

		c.HTML(http.StatusOK, "register.html", data)
		return
	}

	data := gin.H{
		"error":   "",
		"success": "You successfully registered. Try logging in.",
	}

	c.HTML(http.StatusOK, "register.html", data)
}

func (rc *UserController) RegisterView(c *gin.Context) {
	data := gin.H{
		"error":   "",
		"success": "",
	}

	c.HTML(http.StatusOK, "register.html", data)
}

func (rc *UserController) InitAdmin(c *gin.Context) {
	isEmpty, err := repositories.Users.IsEmpty()

	if err != nil {
		data := gin.H{
			"error":   err,
			"success": "",
		}

		c.HTML(http.StatusInternalServerError, "error.html", data)
		return
	}

	if !isEmpty {
		data := gin.H{
			"error":   "Registration is closed",
			"success": "",
		}

		c.HTML(http.StatusInternalServerError, "error.html", data)
		return

	}

	data := gin.H{
		"error":   "",
		"success": "",
	}

	c.HTML(http.StatusOK, "register.html", data)
}

func (rc *UserController) ResetView(c *gin.Context) {
	shopItems, _ := repositories.ShopItems.GetAll()

	data := gin.H{
		"title":     "shopItem Page",
		"shopItems": shopItems,
	}

	c.HTML(http.StatusOK, "passwordreset.html", data)
}

func (rc *UserController) ResetHandler(c *gin.Context) {
	shopItems, _ := repositories.ShopItems.GetAll()

	data := gin.H{
		"title":     "shopItem Page",
		"shopItems": shopItems,
	}

	c.HTML(http.StatusOK, "passwordreset.html", data)
}

func (rc *UserController) MainView(c *gin.Context) {
	shopItems, _ := repositories.ShopItems.GetAll()
	fmt.Println(len(shopItems))

	data := CreateSessionData(c, gin.H{
		"title":     "shopItem Page",
		"shopItems": shopItems,
	})

	c.HTML(http.StatusOK, "index.html", data)
}

func (rc *UserController) TagView(c *gin.Context) {
	shopItems, _ := repositories.ShopItems.GetByTagId(c.Param("id"))

	data := CreateSessionData(c, gin.H{
		"title":     "shopItem Page",
		"shopItems": shopItems,
	})

	c.HTML(http.StatusOK, "index.html", data)
}

func (rc *UserController) Logout(c *gin.Context) {
	c.SetCookie("Authorization", "", -1, "", "", false, true)
	c.HTML(http.StatusOK, "index.html", gin.H{})
}