package discovery

import (
	"enaklo-pos-be/internal/common/errors"
	"enaklo-pos-be/internal/entity"
	"enaklo-pos-be/internal/handlers/request"
	"enaklo-pos-be/internal/handlers/response"
	"enaklo-pos-be/internal/services"
	"github.com/gin-gonic/gin"
	"net/http"
)

type Handler struct {
	service services.DiscoverService
}

func (h *Handler) Route(group *gin.RouterGroup, jwt gin.HandlerFunc) {
	route := group.Group("/discovery")

	route.GET("/home", h.DisoveryHome)
	route.GET("/search", h.DisoverySearch)
	route.GET("/site/detail", h.DiscoveryGetByID)
	route.GET("/site/products", h.DiscoveryProducts)

}

func NewHandler(service services.DiscoverService) *Handler {
	return &Handler{
		service: service,
	}
}

func (h *Handler) DisoveryHome(c *gin.Context) {
	var req request.DiscoveryHomeParam
	if err := c.ShouldBindQuery(&req); err != nil {
		response.ErrorWrapper(c, errors.ErrorBadRequest)
		return
	}

	res, err := h.service.Home(c.Request.Context(), req.ToEntity())

	if err != nil {
		response.ErrorWrapper(c, err)
		return
	}

	c.JSON(http.StatusOK, response.BaseResponse{
		Success: true,
		Status:  http.StatusOK,
		Data:    ConvertEntityToResponse(res),
	})
}

func (h *Handler) DisoverySearch(c *gin.Context) {
	var req request.DiscoveryHomeParam
	if err := c.ShouldBindQuery(&req); err != nil {
		response.ErrorWrapper(c, errors.ErrorBadRequest)
		return
	}

	res, total, err := h.service.Search(c.Request.Context(), req.ToEntity())

	if err != nil {
		response.ErrorWrapper(c, err)
		return
	}

	c.JSON(http.StatusOK, response.BaseResponse{
		Success: true,
		Status:  http.StatusOK,
		Data:    ConvertEntityToSearchResponse(res, total, req),
	})
}

func (h *Handler) DiscoveryGetByID(c *gin.Context) {
	ctx := request.GetMyContext(c)

	var req request.DiscoverySearchByID
	if err := c.ShouldBindQuery(&req); err != nil {
		response.ErrorWrapper(c, errors.ErrorBadRequest)
		return
	}

	res, err := h.service.GetByID(ctx, req.ID)

	if err != nil {
		response.ErrorWrapper(c, err)
		return
	}

	c.JSON(http.StatusOK, response.BaseResponse{
		Success: true,
		Status:  http.StatusOK,
		Data:    ConvertEntityToGetByIDResp(res),
	})
}

func (h *Handler) DiscoveryProducts(c *gin.Context) {
	ctx := request.GetMyContext(c)

	var req request.DiscoverySearchByID
	if err := c.ShouldBindQuery(&req); err != nil {
		response.ErrorWrapper(c, errors.ErrorBadRequest)
		return
	}

	res, err := h.service.GetProductsByID(ctx, req.ID)

	if err != nil {
		response.ErrorWrapper(c, err)
		return
	}

	c.JSON(http.StatusOK, response.BaseResponse{
		Success: true,
		Status:  http.StatusOK,
		Data:    ConvertToProductResp(res),
	})
}

func ConvertEntityToResponse(entityResp *entity.DiscoverySearchResp) *response.ExploreResponse {
	// Convert ExploreRegions
	exploreRegions := make([]response.Region, len(entityResp.ExploreRegions))
	for i, region := range entityResp.ExploreRegions {
		exploreRegions[i] = response.Region{
			Name: region.Name,
		}
	}

	// Convert ExploreDestinations
	exploreDestinations := make([]response.Destination, len(entityResp.ExploreDestinations))
	for i, destination := range entityResp.ExploreDestinations {
		exploreDestinations[i] = response.Destination{
			Name:     destination.Name,
			ImageURL: destination.ImageURL,
		}
	}

	mustVisit := make([]response.MustVisit, len(entityResp.MustVisit))
	for i, mv := range entityResp.MustVisit {
		mustVisit[i] = response.MustVisit{
			Name:        mv.Name,
			Region:      mv.Region,
			Rating:      mv.Rating,
			ReviewCount: mv.ReviewCount,
			Price:       mv.Price,
			ImageURL:    mv.ImageURL,
			SiteID:      mv.SiteID,
			Regency:     mv.Regency,
		}
	}

	return &response.ExploreResponse{
		ExploreRegions:      exploreRegions,
		ExploreDestinations: exploreDestinations,
		MustVisit:           mustVisit,
	}
}

func ConvertEntityToSearchResponse(entityResp *entity.DiscoverySearchResp, total int64, req request.DiscoveryHomeParam) *response.SearchResponse {
	data := make([]response.SiteSeach, len(entityResp.MustVisit))
	for i, mv := range entityResp.MustVisit {
		data[i] = response.SiteSeach{
			Name:        mv.Name,
			Region:      mv.Region,
			Rating:      mv.Rating,
			ReviewCount: mv.ReviewCount,
			Price:       mv.Price,
			ImageURL:    mv.ImageURL,
			SiteID:      mv.SiteID,
			Regency:     mv.Regency,
		}
	}

	return &response.SearchResponse{
		Data:   data,
		Total:  int(total),
		Limit:  req.Limit,
		Offset: req.Offset,
	}
}

func ConvertEntityToGetByIDResp(resp *entity.Site) *response.SearchSiteByIDResponse {
	if resp == nil {
		return nil
	}

	return &response.SearchSiteByIDResponse{
		ID:             resp.ID,
		Name:           resp.Name,
		Image:          resp.Image,
		Address:        resp.Address,
		LocationLink:   resp.LocationLink,
		Description:    resp.Description,
		Highlight:      resp.Highlight,
		ContactPerson:  resp.ContactPerson,
		TnC:            resp.TnC,
		AdditionalInfo: resp.AdditionalInfo,
		PartnerID:      resp.PartnerID,
		Regency:        resp.Regency,
		Region:         resp.Region,
	}
}

func ConvertToProductResp(resp []*entity.Product) *response.SearchProductSiteResponse {
	if resp == nil {
		return nil
	}

	var productResp []response.SearchProductSiteByIDResponse

	partnerID := int64(0)
	for _, res := range resp {
		productResp = append(productResp, response.SearchProductSiteByIDResponse{
			ID:          res.ID,
			Name:        res.Name,
			Price:       res.Price,
			Description: res.Description,
			Type:        res.Type,
		})

		partnerID = res.PartnerID
	}

	return &response.SearchProductSiteResponse{
		Product:   productResp,
		PartnerID: partnerID,
	}
}