global class Act_JsonColumnRepeaterDemo implements cadmus_core.AbstractBeforeActionable  {

    global void execute(cadmus_core__Actionable__c actionable,
                        Id docConfig,
                        Id objectId,
                        Map<String, Object> inputMap,
    cadmus_core.ConvertController.ConvertDataModel cdm) {

        JSONParser jp=JSON.createParser('{"consumptions":{"january":{"day":15,"night":12},"february":{"day":11,"night":13},"march":{"day":15,"night":13},"april":{"day":14,"night":10},"may":{"day":10,"night":9},"june":{"day":7,"night":8},"july":{"day":6,"night":6}}}');
        // Do not use "deserialize*" as map do not preserve order of keys.
        JSONToken token=jp.nextToken();
        Integer level=0;
        List<String> months=new List<String>();
        Set<String> periods = new Set<String>();
        List<String> orderedPeriods=new List<String>(); // Not using a set
        Map<String,Map<String,String>> periodValues=new Map<String, Map<String,String>>();
        Map<String,Map<String,String>> monthValues=new Map<String, Map<String,String>>();
        String currentPeriod = '';
        String currentMonth = '';


        List<Map<String, String>> colDataList = new List<Map<String, String>>();
        List<Map<String, String>> rowsDataList = new List<Map<String, String>>();
        Map<String, String> suffixes = new Map<String, String>();
        Integer c = 0;


        while(token!=null){
            switch on token{
                when START_OBJECT {
                    level = level + 1;
                }
                when END_OBJECT {
                    level = level - 1;
                }
                when FIELD_NAME {
                    if(level==2){ // At month level
                        months.add(jp.getText());
                        currentMonth=jp.getText();
                    }
                    if(level==3){
                        currentPeriod=jp.getText();
                        if (periods.add(currentPeriod)) {
                            orderedPeriods.add(currentPeriod);

                            Map<String, String> recordRow = new Map<String, String>();
                            recordRow.put('when', currentPeriod);
                            colDataList.add(recordRow);
                            if(c==0) {
                                suffixes.put(currentPeriod, '');
                            } else {
                                suffixes.put(currentPeriod, '_' + c);
                            }
                            c++;
                        }
                    }
                }
                when VALUE_NUMBER_INT {
                    if(level==3) {
                        Map<String,String> recordRow=periodValues.get(currentMonth);
                        if(recordRow==null) {
                            recordRow=new Map<String,String>();
                        	recordRow.put('month', currentMonth);
                        	rowsDataList.add(recordRow);
                        }

                        recordRow.put('value' + suffixes.get(currentPeriod), jp.getText());
                        periodValues.put(currentMonth,recordRow);
                    }
                }
            }
            token=jp.nextToken();
        }
        System.debug(String.join(months,','));
        System.debug(String.join(orderedPeriods,','));
        System.debug(periodValues);
        System.debug(rowsDataList);

        String colsDs = '00D2p000000QL9s_a022p00000pZwFy';
        String rowsDs = '00D2p000000QL9s_a022p00000pZwFz';
        List<String> dsList = new List<String> {colsDs,rowsDs};

        //Get DataSources
        List<cadmus_core__Data_Source__c> dss = [SELECT Id, Name, cadmus_core__CustomerDataSourceId__c,cadmus_core__Image_Name__c
                                                 From cadmus_core__Data_Source__c
                                                 WHERE cadmus_core__CustomerDataSourceId__c IN :dsList
                                                ];

        Map<String, cadmus_core__Data_Source__c> dsMap = new Map<String, cadmus_core__Data_Source__c>();
        for(cadmus_core__Data_Source__c ds : dss) {
        	dsMap.put(ds.cadmus_core__CustomerDataSourceId__c, ds);
        }

        inputMap.put(dsMap.get(colsDs).Id,colDataList);
        inputMap.put(dsMap.get(rowsDs).Id,rowsDataList);
    }

}