package purchasemanage

import (
	"errors"
	"fmt"
	"github.com/gin-gonic/gin"
	model "go-admin/app/admin/models"
	orm "go-admin/common/global"
	"go-admin/logger"
	"go-admin/tools"
	"go-admin/tools/app"
	"net/http"
)

// ErpPurchaseCreate 新建采购订单
// @Summary 新建采购订单
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseCreateReq true "新建采购订单模型"
// @Success 200 {object} models.ErpPurchaseOrder
// @Router /api/v1/erp_purchase/create [post]
func ErpPurchaseCreate(c *gin.Context) {
	req := new(model.ErpPurchaseCreateReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误"+err.Error())
		return
	}
	sysUser, err := model.GetSysUserByCtx(c)
	if err != nil {
		logger.Error("sys user err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "操作失败")
		return
	}
	//if sysUser.StoreId == 0 {
	//	logger.Error("sys user store id null")
	//	app.Error(c, http.StatusBadRequest, errors.New("para err"), "sys user store id null")
	//	return
	//}

	if len(req.ErpPurchaseCommodities) == 0 {
		logger.Error("erp purchase commodities is nil")
		app.Error(c, http.StatusInternalServerError, err, "操作失败")
		return
	}

	purchaseOrder, err := model.CreateErpPurchaseOrder(req, sysUser)
	if err != nil {
		logger.Error("CreateErpPurchaseOrder err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "新增失败:"+err.Error())
		return
	}

	purchaseOrder.Commodities = req.ErpPurchaseCommodities

	app.OK(c, purchaseOrder, "")
	return
}

// ErpPurchaseEdit 编辑采购订单
// @Summary 编辑采购订单
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseEditReq true "编辑采购订单模型"
// @Success 200 {object} models.ErpPurchaseOrder
// @Router /api/v1/erp_purchase/edit [post]
func ErpPurchaseEdit(c *gin.Context) {
	req := new(model.ErpPurchaseEditReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误"+err.Error())
		return
	}

	sysUser, err := model.GetSysUserByCtx(c)
	if err != nil {
		logger.Error("sys user err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "操作失败")
		return
	}
	//if sysUser.StoreId == 0 {
	//	logger.Error("sys user store id null")
	//	app.Error(c, http.StatusBadRequest, errors.New("para err"), "sys user store id null")
	//	return
	//}

	if len(req.ErpPurchaseCommodities) == 0 {
		logger.Error("erp purchase commodities is nil")
		app.Error(c, http.StatusInternalServerError, err, "操作失败")
		return
	}

	// 更新订单信息
	purchaseOrder, err := model.EditErpPurchaseOrder(req, sysUser)
	if err != nil {
		logger.Error("EditErpPurchaseOrder err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "编辑失败:"+err.Error())
		return
	}

	purchaseOrder.Commodities = req.ErpPurchaseCommodities
	app.OK(c, purchaseOrder, "")
	return
}

// ErpPurchaseList 查询采购订单列表
// @Summary 查询采购订单列表
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseOrderListReq true "查询采购订单列表模型"
// @Success 200 {object} models.ErpPurchaseOrderListResp
// @Router /api/v1/erp_purchase/list [post]
func ErpPurchaseList(c *gin.Context) {
	req := &model.ErpPurchaseOrderListReq{}
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误")
		return
	}

	resp, err := req.List()
	if err != nil {
		logger.Error("ErpPurchaseList err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "获取失败"+err.Error())
		return
	}

	app.OK(c, resp, "")
	return
}

// ErpPurchaseDetail 查询采购订单详情
// @Summary 查询采购订单详情
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseDetailReq true "查询采购订单详情模型"
// @Success 200 {object} models.ErpPurchaseOrder
// @Router /api/v1/erp_purchase/detail [post]
func ErpPurchaseDetail(c *gin.Context) {
	req := new(model.ErpPurchaseDetailReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误")
		return
	}

	var purchaseOrder model.ErpPurchaseOrder
	err := orm.Eloquent.Table("erp_purchase_order").Where("id=?", req.ErpPurchaseOrderId).Find(&purchaseOrder).Error
	if err != nil {
		logger.Error("purchase order err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, err, "获取失败")
		return
	}
	if purchaseOrder.ID == 0 {
		logger.Error("purchase commodities err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, err, fmt.Sprintf("未查询到采购订单[%d]", req.ErpPurchaseOrderId))
		return
	}

	var purchaseCommodities []model.ErpPurchaseCommodity
	err = orm.Eloquent.Table("erp_purchase_commodity").Where("erp_purchase_order_id=?", req.ErpPurchaseOrderId).
		Find(&purchaseCommodities).Error
	if err != nil {
		logger.Error("purchase commodities err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, err, "获取失败")
		return
	}

	// 添加实际采购入库信息
	var commodityList []model.ErpPurchaseCommodity
	for _, v := range purchaseCommodities {
		result, err := model.GetTotalsAndAveragesByCommodityID(v.ErpCommodityId)
		if err != nil {
			logger.Error("GetTotalsAndAveragesByCommodityID err:", logger.Field("err", err))
			app.Error(c, http.StatusBadRequest, err, "获取失败")
			return
		}

		v.ExecutionCount = result.TotalCount
		v.ExecutionAmount = result.TotalAmount
		v.ExecutionEmployeePrice = result.AvgEmployeePrice
		v.ExecutionPrice = result.AvgImplementationPrice
		commodityList = append(commodityList, v)
	}

	purchaseOrder.Commodities = commodityList

	app.OK(c, purchaseOrder, "")
	return
}

// ErpPurchaseAudit 审核采购订单
// @Summary 审核采购订单
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseAuditReq true "审核采购订单模型"
// @Success 200 {object} app.Response
// @Router /api/v1/erp_purchase/audit [post]
func ErpPurchaseAudit(c *gin.Context) {
	var req = new(model.ErpPurchaseAuditReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, err, "参数错误:"+err.Error())
		return
	}

	err := tools.Validate(req) //必填参数校验
	if err != nil {
		app.Error(c, http.StatusBadRequest, err, err.Error())
		return
	}

	// todo 需要校验当前用户是否有权限

	var erpPurchaseOrder model.ErpPurchaseOrder
	err = orm.Eloquent.Table("erp_purchase_order").Where("serial_number = ?", req.SerialNumber).Find(&erpPurchaseOrder).Error
	if err != nil {
		logger.Error("order err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "审核失败:"+err.Error())
		return
	}

	// 判断入参state：1-审核，2-取消审核
	orderState := 0
	switch req.State {
	case 1: // 1-审核：待审核状态可以审核
		if erpPurchaseOrder.State == model.ErpPurchaseOrderUnAudit {
			if erpPurchaseOrder.PurchaseType == model.ErpProcureOrder { // 采购
				orderState = model.ErpPurchaseOrderWaitInventory
			} else if erpPurchaseOrder.PurchaseType == model.ErpRejectOrder { // 退货
				orderState = model.ErpPurchaseOrderWaitReject
			} else {
				logger.Error("order err, PurchaseType is:", logger.Field("PurchaseType", erpPurchaseOrder.PurchaseType))
				app.Error(c, http.StatusInternalServerError, err, "审核失败:采购类型有误")
				return
			}
		} else {
			app.OK(c, nil, "订单已审核")
			return
		}
	case 2: // 2-取消审核：2/3可以取消审核
		if erpPurchaseOrder.State == model.ErpPurchaseOrderWaitInventory || erpPurchaseOrder.State == model.ErpPurchaseOrderWaitReject {
			orderState = model.ErpPurchaseOrderUnAudit
		} else if erpPurchaseOrder.State == model.ErpPurchaseOrderUnAudit {
			app.OK(c, nil, "订单已取消审核")
			return
		} else {
			logger.Error("order err, erpPurchaseOrder.State is:", logger.Field("erpPurchaseOrder.State", erpPurchaseOrder.State))
			app.Error(c, http.StatusInternalServerError, err, "取消审核失败:[入库/退货中、已终止、已完成]订单不能取消")
			return
		}
	default:
		logger.Error("order err, req.State is:", logger.Field("req.State", req.State))
		app.Error(c, http.StatusInternalServerError, err, "审核失败:参数有误")
		return
	}

	err = orm.Eloquent.Table("erp_purchase_order").Where("id = ?", erpPurchaseOrder.ID).Updates(map[string]interface{}{
		"state": orderState,
	}).Error
	if err != nil {
		logger.Error("update erp_purchase_order err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "审核失败:"+err.Error())
		return
	}

	app.OK(c, nil, "操作成功")
	return
}

// ErpPurchaseDelete 删除采购订单
// @Summary 删除采购订单
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseTerminateReq true "删除采购订单模型"
// @Success 200 {object} app.Response
// @Router /api/v1/erp_purchase/delete [post]
func ErpPurchaseDelete(c *gin.Context) {
	var req = new(model.ErpPurchaseTerminateReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, err, "参数错误:"+err.Error())
		return
	}

	err := tools.Validate(req) //必填参数校验
	if err != nil {
		app.Error(c, http.StatusBadRequest, err, err.Error())
		return
	}

	// todo 需要校验当前用户是否有权限

	var erpPurchaseOrder model.ErpPurchaseOrder
	err = orm.Eloquent.Table("erp_purchase_order").Where("serial_number = ?", req.SerialNumber).Find(&erpPurchaseOrder).Error
	if err != nil {
		logger.Error("order err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "删除失败:"+err.Error())
		return
	}

	if erpPurchaseOrder.SerialNumber == "" {
		logger.Error("order is null")
		app.Error(c, http.StatusInternalServerError, err, "删除失败:订单不存在")
		return
	}

	// 仅待审核订单可删除
	if erpPurchaseOrder.State != model.ErpPurchaseOrderUnAudit {
		logger.Error("order err, erpPurchaseOrder.State is:", logger.Field("erpPurchaseOrder.State", erpPurchaseOrder.State))
		app.Error(c, http.StatusInternalServerError, err, "删除失败:仅待审核订单可删除")
		return
	}

	begin := orm.Eloquent.Begin()
	// 1-删除采购订单表
	err = begin.Delete(erpPurchaseOrder).Error
	if err != nil {
		logger.Error("order delete1 err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "删除失败:"+err.Error())
		return
	}

	// 2-删除采购订单商品表
	var commodities []model.ErpPurchaseCommodity
	err = orm.Eloquent.Table("erp_purchase_commodity").Where("erp_purchase_order_id = ?", erpPurchaseOrder.ID).Find(&commodities).Error
	if err != nil {
		logger.Error("query erp_purchase_commodity err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "删除失败:"+err.Error())
		return
	}

	if len(commodities) != 0 {
		err = begin.Delete(&commodities).Error
		if err != nil {
			logger.Error("更新商品订单信息-删除 error")
			app.Error(c, http.StatusInternalServerError, err, "删除失败:"+err.Error())
			return
		}
	}

	err = begin.Commit().Error
	if err != nil {
		begin.Rollback()
		logger.Error("commit err:", logger.Field("err", err))
		return
	}

	app.OK(c, nil, "删除成功")
	return
}

// ErpPurchaseInventory 入库（退货）
// @Summary 入库（退货）
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseInventoryReq true "入库（退货）模型"
// @Success 200 {object} app.Response
// @Router /api/v1/erp_purchase/inventory [post]
func ErpPurchaseInventory(c *gin.Context) {
	req := new(model.ErpPurchaseInventoryReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误")
		return
	}

	err := model.InventoryErpPurchase(req)
	if err != nil {
		logger.Error("InventoryErpPurchase err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "操作失败:"+err.Error())
		return
	}

	app.OK(c, nil, "操作成功")
	return
}

// ErpPurchaseTerminate 终止采购
// @Summary 终止采购
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseTerminateReq true "终止采购模型"
// @Success 200 {object} app.Response
// @Router /api/v1/erp_purchase/terminate [post]
func ErpPurchaseTerminate(c *gin.Context) {
	var req = new(model.ErpPurchaseTerminateReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, err, "参数错误:"+err.Error())
		return
	}

	err := tools.Validate(req) //必填参数校验
	if err != nil {
		app.Error(c, http.StatusBadRequest, err, err.Error())
		return
	}

	// todo 需要校验当前用户是否有权限

	var erpPurchaseOrder model.ErpPurchaseOrder
	err = orm.Eloquent.Table("erp_purchase_order").Where("serial_number = ?", req.SerialNumber).Find(&erpPurchaseOrder).Error
	if err != nil {
		logger.Error("order err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "审核失败:"+err.Error())
		return
	}

	// 仅待入库、待退货订单可以终止
	orderState := 0
	if erpPurchaseOrder.State == model.ErpPurchaseOrderWaitInventory || erpPurchaseOrder.State == model.ErpPurchaseOrderWaitReject {
		orderState = model.ErpPurchaseOrderEnd
	} else {
		logger.Error("order err, erpPurchaseOrder.State is:", logger.Field("erpPurchaseOrder.State", erpPurchaseOrder.State))
		app.Error(c, http.StatusInternalServerError, err, "终止失败:仅待入库、待退货订单可以终止")
		return
	}

	err = orm.Eloquent.Table("erp_purchase_order").Where("id = ?", erpPurchaseOrder.ID).Updates(map[string]interface{}{
		"state": orderState,
	}).Error
	if err != nil {
		logger.Error("update erp_purchase_order err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "审核失败:"+err.Error())
		return
	}

	app.OK(c, nil, "")
	return
}

// ErpPurchaseExecute 执行（入库/退货）
// @Summary 执行（入库/退货）
// @Tags 采购管理, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.ErpPurchaseInventoryReq true "执行（入库/退货）模型"
// @Success 200 {object} models.ErpPurchaseExecuteResp
// @Router /api/v1/erp_purchase/execute [post]
func ErpPurchaseExecute(c *gin.Context) {
	req := new(model.ErpPurchaseInventoryReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误")
		return
	}

	resp, err := model.ExecuteErpPurchase(req)
	if err != nil {
		logger.Error("InventoryErpPurchase err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "操作失败:"+err.Error())
		return
	}

	app.OK(c, resp, "执行成功")
	return
}

// ErpPurchaseDemandCreate 创建采购需求
// @Summary 创建采购需求
// @Tags 采购需求, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.CreateErpPurchaseDemandReq true "创建采购需求模型"
// @Success 200 {object} app.Response
// @Router /api/v1/erp_purchase/demand/create [post]
func ErpPurchaseDemandCreate(c *gin.Context) {
	req := new(model.CreateErpPurchaseDemandReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误")
		return
	}

	sysUser, err := model.GetSysUserByCtx(c)
	if err != nil {
		logger.Error("sys user err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "操作失败")
		return
	}

	err = model.CreateErpPurchaseDemand(req, sysUser)
	if err != nil {
		logger.Error("CreateErpPurchaseDemand err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "创建失败:"+err.Error())
		return
	}

	app.OK(c, nil, "创建成功")
	return
}

// ErpPurchaseDemandGet 获取采购需求
// @Summary 获取采购需求
// @Tags 采购需求, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.GetErpPurchaseDemandReq true "获取采购需求模型"
// @Success 200 {object} models.GetErpPurchaseDemandResp
// @Router /api/v1/erp_purchase/demand/get [post]
func ErpPurchaseDemandGet(c *gin.Context) {
	req := new(model.GetErpPurchaseDemandReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误")
		return
	}

	resp, err := model.GetErpPurchaseDemand(req)
	if err != nil {
		logger.Error("GetErpPurchaseDemand err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "获取失败:"+err.Error())
		return
	}

	app.OK(c, resp, "获取成功")
	return
}

// ErpPurchaseDemandFinish 完成采购需求
// @Summary 完成采购需求
// @Tags 采购需求, V1.3.0
// @Produce json
// @Accept json
// @Param request body models.FinishErpPurchaseDemandReq true "完成采购需求模型"
// @Success 200 {object} app.Response
// @Router /api/v1/erp_purchase/demand/finish [post]
func ErpPurchaseDemandFinish(c *gin.Context) {
	req := new(model.FinishErpPurchaseDemandReq)
	if err := c.ShouldBindJSON(&req); err != nil {
		logger.Error("ShouldBindJSON err:", logger.Field("err", err))
		app.Error(c, http.StatusBadRequest, errors.New("para err"), "参数错误")
		return
	}

	sysUser, err := model.GetSysUserByCtx(c)
	if err != nil {
		logger.Error("sys user err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "操作失败")
		return
	}

	err = model.FinishErpPurchaseDemand(req, sysUser)
	if err != nil {
		logger.Error("CreateErpPurchaseDemand err:", logger.Field("err", err))
		app.Error(c, http.StatusInternalServerError, err, "操作失败:"+err.Error())
		return
	}

	app.OK(c, nil, "操作成功")
	return
}