package order

import (
	"strings"

	"hfb_sys/backend/pkg/response"

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

func (h *Handler) Create(c *gin.Context) {
	userID, ok := currentUserID(c)
	if !ok {
		response.Unauthorized(c, "缺少用户上下文")
		return
	}
	var req CreateRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		response.BadRequest(c, "订单信息不完整")
		return
	}
	if strings.TrimSpace(req.DistributionSiteCode) == "" {
		req.DistributionSiteCode = strings.TrimSpace(c.GetHeader("X-Distribution-Site-Code"))
	}
	item, err := h.service.Create(c.Request.Context(), userID, req)
	if err != nil {
		writeOrderError(c, err)
		return
	}
	response.Created(c, item)
}

func (h *Handler) List(c *gin.Context) {
	userID, ok := currentUserID(c)
	if !ok {
		response.Unauthorized(c, "缺少用户上下文")
		return
	}
	page, pageSize := parsePagination(c)
	siteCode := strings.TrimSpace(firstNonEmpty(c.GetHeader("X-Distribution-Site-Code"), c.Query("distribution_site_code"), c.Query("site_code")))
	items, err := h.service.ListForUser(c.Request.Context(), userID, page, pageSize, siteCode)
	if err != nil {
		writeOrderError(c, err)
		return
	}
	response.OK(c, items)
}

func (h *Handler) ListSellerHandoffs(c *gin.Context) {
	userID, ok := currentUserID(c)
	if !ok {
		response.Unauthorized(c, "缺少用户上下文")
		return
	}
	page, pageSize := parsePagination(c)
	siteCode := strings.TrimSpace(firstNonEmpty(c.GetHeader("X-Distribution-Site-Code"), c.Query("distribution_site_code"), c.Query("site_code")))
	items, err := h.service.ListSellerHandoffs(c.Request.Context(), userID, SellerHandoffQuery{
		Page:     page,
		PageSize: pageSize,
		Status:   c.Query("status"),
		SiteCode: siteCode,
	})
	if err != nil {
		writeOrderError(c, err)
		return
	}
	response.OK(c, items)
}

func (h *Handler) Detail(c *gin.Context) {
	userID, ok := currentUserID(c)
	if !ok {
		response.Unauthorized(c, "缺少用户上下文")
		return
	}
	id, ok := parseID(c)
	if !ok {
		return
	}
	siteCode := strings.TrimSpace(firstNonEmpty(c.GetHeader("X-Distribution-Site-Code"), c.Query("distribution_site_code"), c.Query("site_code")))
	item, err := h.service.FindForUser(c.Request.Context(), userID, id, siteCode)
	if err != nil {
		writeOrderError(c, err)
		return
	}
	response.OK(c, item)
}

func (h *Handler) Cancel(c *gin.Context) {
	userID, ok := currentUserID(c)
	if !ok {
		response.Unauthorized(c, "缺少用户上下文")
		return
	}
	id, ok := parseID(c)
	if !ok {
		return
	}
	if err := h.service.Cancel(c.Request.Context(), userID, id); err != nil {
		writeOrderError(c, err)
		return
	}
	response.OK(c, gin.H{"cancelled": true})
}

func (h *Handler) Pay(c *gin.Context) {
	userID, ok := currentUserID(c)
	if !ok {
		response.Unauthorized(c, "缺少用户上下文")
		return
	}
	id, ok := parseID(c)
	if !ok {
		return
	}
	if err := h.service.Pay(c.Request.Context(), userID, id); err != nil {
		writeOrderError(c, err)
		return
	}
	response.OK(c, gin.H{"paid": true})
}