// StatusHistory returns a slice of past statuses for several entities. func (c *Client) StatusHistory(request params.StatusHistoryRequests) params.StatusHistoryResults { results := params.StatusHistoryResults{} // TODO(perrito666) the contents of the loop could be split into // a oneHistory method for clarity. for _, request := range request.Requests { filter := status.StatusHistoryFilter{ Size: request.Filter.Size, Date: request.Filter.Date, Delta: request.Filter.Delta, } if err := c.checkCanRead(); err != nil { history := params.StatusHistoryResult{ Error: common.ServerError(err), } results.Results = append(results.Results, history) continue } if err := filter.Validate(); err != nil { history := params.StatusHistoryResult{ Error: common.ServerError(errors.Annotate(err, "cannot validate status history filter")), } results.Results = append(results.Results, history) continue } var ( err error hist []params.DetailedStatus ) kind := status.HistoryKind(request.Kind) err = errors.NotValidf("%q requires a unit, got %T", kind, request.Tag) switch kind { case status.KindUnit, status.KindWorkload, status.KindUnitAgent: var u names.UnitTag if u, err = names.ParseUnitTag(request.Tag); err == nil { hist, err = c.unitStatusHistory(u, filter, kind) } default: var m names.MachineTag if m, err = names.ParseMachineTag(request.Tag); err == nil { hist, err = c.machineStatusHistory(m, filter, kind) } } if err == nil { sort.Sort(byTime(hist)) } results.Results = append(results.Results, params.StatusHistoryResult{ History: params.History{Statuses: hist}, Error: common.ServerError(errors.Annotatef(err, "fetching status history for %q", request.Tag)), }) } return results }