package v1

import (
	"apsClient/model"
	"apsClient/model/request"
	"apsClient/pkg/contextx"
	"apsClient/pkg/ecode"
	"apsClient/service"
	"github.com/gin-gonic/gin"
)

type ProcessModelApi struct{}

// List
// @Tags      工艺模型
// @Summary   获取工艺模型列表
// @Produce   application/json
// @Param     object  query    request.ProcessModelList true  "查询参数"
// @Success   200   {object}  contextx.Response{data=[]model.ProcessModel}  "成功"
// @Router    /v1/processModel/list [get]
func (slf *ProcessModelApi) List(c *gin.Context) {
	var params request.ProcessModelList
	ctx, ok := contextx.NewContext(c, &params)
	if !ok {
		return
	}
	procedure, code := service.NewTaskService().GetProcedureById(params.ProcedureId)
	if code != ecode.OK {
		ctx.Fail(code)
		return
	}
	var oldProcessModel *model.ProcessModel
	if procedure.ProcessModelNumber != "" {
		oldProcessModel, _ = service.GetProcessModelByNumber(procedure.ProcessModelNumber)
	}

	offset, limit, unShift := GetOffsetAndLimit(oldProcessModel, params.Page, params.PageSize)
	list, total, err := service.GetProcessModelList(offset, limit, procedure.ProcessModelNumber)
	if err != nil {
		ctx.Fail(ecode.DBErr)
		return
	}

	if unShift && oldProcessModel != nil { //粘在前面
		list = append([]*model.ProcessModel{oldProcessModel}, list...)
	}
	for _, processModel := range list {
		if oldProcessModel != nil && processModel.Procedure == oldProcessModel.Procedure && processModel.Product == oldProcessModel.Product {
			processModel.IsUpdate = processModel.Number != procedure.ProcessModelNumber
		}
		if processModel.IsUpdate {
			processModel.NewNumber, processModel.NewParamsMap = processModel.Number, processModel.ParamsMap
			processModel.Number, processModel.ParamsMap = oldProcessModel.Number, oldProcessModel.ParamsMap
		}
	}
	ctx.ResultList(list, total)
}

func GetOffsetAndLimit(current *model.ProcessModel, page, pageSize int) (offset, limit int, unShift bool) {
	//isNew是要更新的
	unShift = current != nil && page == 1
	limit = pageSize
	if unShift {
		limit-- //如果是新的，第一页少查一个
	}
	offset = (page - 1) * pageSize
	if current != nil && offset > 0 { //如果是新的，第二页开始偏移量左移一个
		offset--
	}

	return offset, limit, unShift
}