package handler

import (
	"log"
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/muyuqingfeng/iloom/shared/pkg/response"
	"github.com/muyuqingfeng/iloom/shared/pkg/websocket"
	"github.com/muyuqingfeng/iloom/washing-service/internal/model"
	"github.com/muyuqingfeng/iloom/washing-service/internal/service"
)

type FinishedProductHandler struct {
	svc   *service.FinishedProductService
	wsHub *websocket.Hub
}

func NewFinishedProductHandler(svc *service.FinishedProductService, wsHub *websocket.Hub) *FinishedProductHandler {
	return &FinishedProductHandler{svc: svc, wsHub: wsHub}
}

func (h *FinishedProductHandler) List(c *gin.Context) {
	companyID := c.GetHeader("X-Company-ID")
	if companyID == "" {
		response.BadRequest(c, "missing company id")
		return
	}

	products, err := h.svc.List(c.Request.Context(), companyID)
	if err != nil {
		log.Printf("list finished products error: %v", err)
		response.InternalError(c, "failed to list finished products")
		return
	}

	response.OK(c, products)
}

func (h *FinishedProductHandler) Create(c *gin.Context) {
	companyID := c.GetHeader("X-Company-ID")
	userID := c.GetHeader("X-User-ID")
	if companyID == "" {
		response.BadRequest(c, "missing company id")
		return
	}

	var fp model.FinishedProduct
	if err := c.ShouldBindJSON(&fp); err != nil {
		response.BadRequest(c, err.Error())
		return
	}

	if err := h.svc.Create(c.Request.Context(), companyID, userID, &fp); err != nil {
		log.Printf("create finished product error: %v", err)
		response.InternalError(c, "failed to create finished product")
		return
	}

	h.wsHub.BroadcastToCompany(companyID, &websocket.Event{
		Table:  "finished_products",
		Action: "INSERT",
	})

	c.JSON(http.StatusCreated, response.Response{
		Code:    0,
		Message: "success",
		Data:    fp,
	})
}

type OutboundReq struct {
	Rolls  int     `json:"rolls" binding:"required,gt=0"`
	Meters float64 `json:"meters" binding:"required,gt=0"`
	Notes  string  `json:"notes"`
}

func (h *FinishedProductHandler) Outbound(c *gin.Context) {
	companyID := c.GetHeader("X-Company-ID")
	userID := c.GetHeader("X-User-ID")
	if companyID == "" {
		response.BadRequest(c, "missing company id")
		return
	}

	fpID := c.Param("id")

	var req OutboundReq
	if err := c.ShouldBindJSON(&req); err != nil {
		response.BadRequest(c, err.Error())
		return
	}

	if err := h.svc.Outbound(c.Request.Context(), fpID, companyID, userID, req.Rolls, req.Meters, req.Notes); err != nil {
		log.Printf("outbound finished product error: %v", err)
		response.InternalError(c, "failed to outbound finished product")
		return
	}

	h.wsHub.BroadcastToCompany(companyID, &websocket.Event{
		Table:  "finished_products",
		Action: "UPDATE",
	})

	response.OK(c, nil)
}