package handler

import (
	"encoding/json"
	"time"

	"affiliate_dash/internal/pkg/response"
	"affiliate_dash/internal/service"

	"github.com/gin-gonic/gin"
)

// OpenHandler 皮肤源头开放接口
type OpenHandler struct {
	orderSvc *service.OrderService
}

func NewOpenHandler(orderSvc *service.OrderService) *OpenHandler {
	return &OpenHandler{orderSvc: orderSvc}
}

// QueryOrder GET /api/open/v1/orders/:order_no
// 上游输入店铺订单号，查询商品与是否可发货
func (h *OpenHandler) QueryOrder(c *gin.Context) {
	orderNo := c.Param("order_no")
	if orderNo == "" {
		orderNo = c.Query("order_no")
	}
	data, err := h.orderSvc.QueryOpenOrder(orderNo)
	if err != nil {
		if err.Error() == "订单不存在" {
			response.NotFound(c, err.Error())
			return
		}
		response.BadRequest(c, err.Error())
		return
	}
	response.OK(c, data)
}

type shipNotifyReq struct {
	OrderNo         string `json:"order_no" binding:"required"`
	ShipStatus      string `json:"ship_status" binding:"required"` // success/failed/processing
	ProviderOrderNo string `json:"provider_order_no"`
	ShippedAt       string `json:"shipped_at"` // RFC3339 可选
	FailReason      string `json:"fail_reason"`
}

// ShipNotify POST /api/open/v1/orders/ship-notify
// 上游发货后推送结果，同步订单状态
func (h *OpenHandler) ShipNotify(c *gin.Context) {
	var req shipNotifyReq
	if err := c.ShouldBindJSON(&req); err != nil {
		response.BadRequest(c, "参数错误：order_no 与 ship_status 必填")
		return
	}

	raw, _ := json.Marshal(req)
	var shippedAt *time.Time
	if req.ShippedAt != "" {
		t, err := time.Parse(time.RFC3339, req.ShippedAt)
		if err != nil {
			response.BadRequest(c, "shipped_at 格式错误，请使用 RFC3339，如 2026-07-20T16:00:00+08:00")
			return
		}
		shippedAt = &t
	}

	result, err := h.orderSvc.HandleShipNotify(service.ShipNotifyInput{
		OrderNo:         req.OrderNo,
		ShipStatus:      req.ShipStatus,
		ProviderOrderNo: req.ProviderOrderNo,
		ShippedAt:       shippedAt,
		FailReason:      req.FailReason,
		RawPayload:      string(raw),
	})
	if err != nil {
		if err.Error() == "订单不存在" {
			response.NotFound(c, err.Error())
			return
		}
		response.BadRequest(c, err.Error())
		return
	}
	response.OK(c, result)
}