package controllers

import (
	"fmt"
	"net/http"
	"strconv"

	"github.com/gin-gonic/gin"

	"example.com/gin/test/models"
	//"example.com/gin/test/services"
	"example.com/gin/test/repositories"
)

type CRUDController interface {
	Create(*gin.Context)
	GetAll(*gin.Context) 
	GetById(*gin.Context)
	Update(*gin.Context)
	Delete(*gin.Context)
}

type ShopItemController interface {
	CRUDController
	ShopItemView(*gin.Context)
	AddItemView(*gin.Context)
	AddItemHandler(*gin.Context)
	CreateTag(*gin.Context)
	GetAllTags(*gin.Context)
}

type shopItemController struct {}

func NewShopItemController() ShopItemController {
	return &shopItemController{}
}

func (rc *shopItemController) GetAll(c *gin.Context) {
	shopItems, err := repositories.ShopItems.GetAll()

	if err != nil {
		ReplyError(c, fmt.Errorf("Could not query shopItems"))
		return
	}

	c.JSON(http.StatusOK, shopItems)
}

func (rc *shopItemController) GetById(c *gin.Context) {
	shopItem, err := repositories.ShopItems.GetById(c.Param("id"))

	if err != nil {
		ReplyError(c, fmt.Errorf("Could not query shopItem: %v", err))
		return
	}

	ReplyOK(c, shopItem)
}

func (rc *shopItemController) NewShopItemFromForm(ctx *gin.Context) (models.ShopItem, error) {
	name := ctx.PostForm("name")
	abstract := ctx.PostForm("abstract")
	description := ctx.PostForm("description")
	priceStr := ctx.PostForm("price")
	tagIds := ctx.PostFormArray("tags[]")

	if name == "" || description == "" {
		return models.ShopItem{}, fmt.Errorf("Name or description empty")
	}

  // Convert the price string to float64
  price, err := strconv.ParseFloat(priceStr, 64)
  if err != nil {
		return models.ShopItem{}, fmt.Errorf("Could not parse price")
  }

	shopItem := models.ShopItem{
		Name: name,
		Abstract: abstract,
		Description: description,
		Price: price,
		IsPublic: true,
	}

	for _, tagId := range tagIds {
		tag, err := repositories.Tags.GetById(tagId)

		if err != nil {
			return models.ShopItem{}, fmt.Errorf("Could not get tag by id")
		}

		shopItem.Tags = append(shopItem.Tags, tag)
	}

	return shopItem, nil
	//return services.ShopItems.NewShopItem(name, abstract, description, price, tagIds)
}


func (rc *shopItemController) Create(c *gin.Context) {
	shopItem, err := rc.NewShopItemFromForm(c)

	if err != nil {
		ReplyError(c, fmt.Errorf("shopItem creation failed: %s", err))
		return
	}

	_, err = repositories.ShopItems.Create(shopItem)

	if err != nil {
		ReplyError(c, fmt.Errorf("shopItem creation failed: %s", err))
		return
	}

	ReplyOK(c, "shopItem was created")
}


func (rc *shopItemController) Update(c *gin.Context) {
	shopItemId, err := strconv.Atoi(c.Param("id"))

	if err != nil {
		ReplyError(c, fmt.Errorf("shopItem with Id '%s' does not exist", c.Param("id")))
		return
	}

	shopItem, err := rc.NewShopItemFromForm(c)

	if err != nil {
		ReplyError(c, err)
		return
	}

	shopItem.ID = uint(shopItemId)
	_, err = repositories.ShopItems.Update(shopItem)

	if err != nil {
		ReplyError(c, fmt.Errorf("shopItem creation failed: %s", err))
		return
	}

	ReplyOK(c, "shopItem was updated")
}

func (rc *shopItemController) Delete(c *gin.Context) {
	err := repositories.ShopItems.DeleteById(c.Param("id"))

	if err != nil {
		ReplyError(c, fmt.Errorf("shopItem deletion failed: %s", err))
		return
	}

	ReplyOK(c, "shopItem was deleted")
}

func (rc *shopItemController) ShopItemView(c *gin.Context) {
	shopItem, err := repositories.ShopItems.GetById(c.Param("id"))

	if err != nil {
		c.HTML(http.StatusBadRequest, "shopitem.html", gin.H{ "data": gin.H{ "error": err } })
	}

	//TODO: get tags by item
	tags, err := repositories.Tags.GetAll()

	if err != nil {
		c.HTML(http.StatusBadRequest, "shopitem.html", gin.H{ "data": gin.H{ "error": err } })
	}

	data := CreateSessionData(c, gin.H{
		"shopItem": shopItem,
		"tags": tags,
	})

	if err != nil {
		c.HTML(http.StatusBadRequest, "shopitem.html", data)
	}

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


func (rc *shopItemController) AddItemView(c *gin.Context) {
	tags, err := repositories.Tags.GetAll()

	if err != nil {
		c.HTML(http.StatusBadRequest, "additem.html", gin.H{ "error": err })
	}

	data := CreateSessionData(c, gin.H{
		"error": "",
		"success": "",
		"tags": tags,
	})

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


func (rc *shopItemController) AddItemHandler(c *gin.Context) {
	shopItem, err := rc.NewShopItemFromForm(c)

	if err != nil {
		c.HTML(http.StatusBadRequest, "additem.html", gin.H{ "error": err })
		return
	}

	tags, err := repositories.Tags.GetAll()

	if err != nil {
		c.HTML(http.StatusBadRequest, "additem.html", gin.H{ "error": err })
		return
	}

	_, err = repositories.ShopItems.Create(shopItem)
	if err != nil {
		data := CreateSessionData(c, gin.H{
			"error": err,
			"success": "",
			"tags": tags,
		})

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

	data := CreateSessionData(c, gin.H{
		"error": "",
		"success": fmt.Sprintf("Item '%s' Registered", shopItem.Name),
		"tags": tags,
	})

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

func (rc *shopItemController) CreateTag(c *gin.Context) {
	tag, err := models.NewTagByJson(c)

	if err != nil {
		ReplyError(c, err)
	}

	_, err = repositories.Tags.Create(tag)
	if err != nil {
		ReplyError(c, fmt.Errorf("shopItem creation failed: %s", err))
		return
	}

	//userID := user.(models.User).ID
	//rc.DB.Model(&models.shopItem{}).Where("id = ?"), room.ID).Association("Admins").Append(&models.User{ID: userID})

	//if result.Error != nil {
	//	ReplyError(c, fmt.Errorf("shopItem creation failed: %s", result.Error))
	//	return
	//}

	ReplyOK(c, fmt.Sprintf("tag '%s' was created", tag.Name))

}

func (rc *shopItemController) GetAllTags(c *gin.Context) {
	tags, err := repositories.Tags.GetAll()

	if err != nil {
		ReplyError(c, fmt.Errorf("Could not query Tags"))
		return
	}

	c.JSON(http.StatusOK, tags)
}

func ReplyError(ctx *gin.Context, err error) {
	ctx.JSON(http.StatusBadRequest, gin.H{ "error": err.Error() })
}

func ReplyOK(ctx *gin.Context, message any) {
	ctx.JSON(http.StatusOK, message)
}