import falcon import simplejson as json import mysql.connector import config from datetime import datetime, timedelta, timezone from core import utilities from decimal import Decimal import excelexporters.offlinemetercost class Reporting: @staticmethod def __init__(): """"Initializes Reporting""" pass @staticmethod def on_options(req, resp): resp.status = falcon.HTTP_200 #################################################################################################################### # PROCEDURES # Step 1: valid parameters # Step 2: query the offline meter and energy category # Step 3: query base period energy consumption # Step 4: query base period energy cost # Step 5: query reporting period energy consumption # Step 6: query reporting period energy cost # Step 7: query tariff data # Step 8: construct the report #################################################################################################################### @staticmethod def on_get(req, resp): print(req.params) offline_meter_id = req.params.get('offlinemeterid') period_type = req.params.get('periodtype') base_period_start_datetime = req.params.get('baseperiodstartdatetime') base_period_end_datetime = req.params.get('baseperiodenddatetime') reporting_period_start_datetime_local = req.params.get('reportingperiodstartdatetime') reporting_period_end_datetime_local = req.params.get('reportingperiodenddatetime') ################################################################################################################ # Step 1: valid parameters ################################################################################################################ if offline_meter_id is None: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_OFFLINE_METER_ID') else: offline_meter_id = str.strip(offline_meter_id) if not offline_meter_id.isdigit() or int(offline_meter_id) <= 0: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_OFFLINE_METER_ID') if period_type is None: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_PERIOD_TYPE') else: period_type = str.strip(period_type) if period_type not in ['hourly', 'daily', 'weekly', 'monthly', 'yearly']: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_PERIOD_TYPE') timezone_offset = int(config.utc_offset[1:3]) * 60 + int(config.utc_offset[4:6]) if config.utc_offset[0] == '-': timezone_offset = -timezone_offset base_start_datetime_utc = None if base_period_end_datetime is not None and len(str.strip(base_period_end_datetime)) > 0: base_period_start_datetime = str.strip(base_period_start_datetime) try: base_start_datetime_utc = datetime.strptime(base_period_start_datetime, '%Y-%m-%dT%H:%M:%S') except ValueError: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description="API.INVALID_BASE_PERIOD_START_DATETIME") base_start_datetime_utc = base_start_datetime_utc.replace(tzinfo=timezone.utc) - \ timedelta(minutes=timezone_offset) base_end_datetime_utc = None if base_period_end_datetime is not None and len(str.strip(base_period_end_datetime)) > 0: base_period_end_datetime = str.strip(base_period_end_datetime) try: base_end_datetime_utc = datetime.strptime(base_period_end_datetime, '%Y-%m-%dT%H:%M:%S') except ValueError: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description="API.INVALID_BASE_PERIOD_END_DATETIME") base_end_datetime_utc = base_end_datetime_utc.replace(tzinfo=timezone.utc) - \ timedelta(minutes=timezone_offset) if base_start_datetime_utc is not None and base_end_datetime_utc is not None and \ base_start_datetime_utc >= base_end_datetime_utc: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_BASE_PERIOD_END_DATETIME') if reporting_period_start_datetime_local is None: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description="API.INVALID_REPORTING_PERIOD_START_DATETIME") else: reporting_period_start_datetime_local = str.strip(reporting_period_start_datetime_local) try: reporting_start_datetime_utc = datetime.strptime(reporting_period_start_datetime_local, '%Y-%m-%dT%H:%M:%S') except ValueError: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description="API.INVALID_REPORTING_PERIOD_START_DATETIME") reporting_start_datetime_utc = reporting_start_datetime_utc.replace(tzinfo=timezone.utc) - \ timedelta(minutes=timezone_offset) if reporting_period_end_datetime_local is None: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description="API.INVALID_REPORTING_PERIOD_END_DATETIME") else: reporting_period_end_datetime_local = str.strip(reporting_period_end_datetime_local) try: reporting_end_datetime_utc = datetime.strptime(reporting_period_end_datetime_local, '%Y-%m-%dT%H:%M:%S') except ValueError: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description="API.INVALID_REPORTING_PERIOD_END_DATETIME") reporting_end_datetime_utc = reporting_end_datetime_utc.replace(tzinfo=timezone.utc) - \ timedelta(minutes=timezone_offset) if reporting_start_datetime_utc >= reporting_end_datetime_utc: raise falcon.HTTPError(falcon.HTTP_400, title='API.BAD_REQUEST', description='API.INVALID_REPORTING_PERIOD_END_DATETIME') ################################################################################################################ # Step 2: query the offline meter and energy category ################################################################################################################ cnx_system = mysql.connector.connect(**config.myems_system_db) cursor_system = cnx_system.cursor() cnx_energy = mysql.connector.connect(**config.myems_energy_db) cursor_energy = cnx_energy.cursor() cnx_billing = mysql.connector.connect(**config.myems_billing_db) cursor_billing = cnx_billing.cursor() cursor_system.execute(" SELECT m.id, m.name, m.cost_center_id, m.energy_category_id, " " ec.name, ec.unit_of_measure, ec.kgce, ec.kgco2e " " FROM tbl_offline_meters m, tbl_energy_categories ec " " WHERE m.id = %s AND m.energy_category_id = ec.id ", (offline_meter_id,)) row_offline_meter = cursor_system.fetchone() if row_offline_meter is None: if cursor_system: cursor_system.close() if cnx_system: cnx_system.disconnect() if cursor_energy: cursor_energy.close() if cnx_energy: cnx_energy.disconnect() if cursor_billing: cursor_billing.close() if cnx_billing: cnx_billing.disconnect() raise falcon.HTTPError(falcon.HTTP_404, title='API.NOT_FOUND', description='API.OFFLINE_METER_NOT_FOUND') offline_meter = dict() offline_meter['id'] = row_offline_meter[0] offline_meter['name'] = row_offline_meter[1] offline_meter['cost_center_id'] = row_offline_meter[2] offline_meter['energy_category_id'] = row_offline_meter[3] offline_meter['energy_category_name'] = row_offline_meter[4] offline_meter['unit_of_measure'] = config.currency_unit offline_meter['kgce'] = row_offline_meter[6] offline_meter['kgco2e'] = row_offline_meter[7] ################################################################################################################ # Step 3: query base period energy consumption ################################################################################################################ query = (" SELECT start_datetime_utc, actual_value " " FROM tbl_offline_meter_hourly " " WHERE offline_meter_id = %s " " AND start_datetime_utc >= %s " " AND start_datetime_utc < %s " " ORDER BY start_datetime_utc ") cursor_energy.execute(query, (offline_meter['id'], base_start_datetime_utc, base_end_datetime_utc)) rows_offline_meter_hourly = cursor_energy.fetchall() rows_offline_meter_periodically = utilities.aggregate_hourly_data_by_period(rows_offline_meter_hourly, base_start_datetime_utc, base_end_datetime_utc, period_type) base = dict() base['timestamps'] = list() base['values'] = list() base['total_in_category'] = Decimal(0.0) base['total_in_kgce'] = Decimal(0.0) base['total_in_kgco2e'] = Decimal(0.0) for row_offline_meter_periodically in rows_offline_meter_periodically: current_datetime_local = row_offline_meter_periodically[0].replace(tzinfo=timezone.utc) + \ timedelta(minutes=timezone_offset) if period_type == 'hourly': current_datetime = current_datetime_local.strftime('%Y-%m-%dT%H:%M:%S') elif period_type == 'daily': current_datetime = current_datetime_local.strftime('%Y-%m-%d') elif period_type == 'weekly': current_datetime = current_datetime_local.strftime('%Y-%m-%d') elif period_type == 'monthly': current_datetime = current_datetime_local.strftime('%Y-%m') elif period_type == 'yearly': current_datetime = current_datetime_local.strftime('%Y') actual_value = Decimal(0.0) if row_offline_meter_periodically[1] is None \ else row_offline_meter_periodically[1] base['timestamps'].append(current_datetime) base['total_in_kgce'] += actual_value * offline_meter['kgce'] base['total_in_kgco2e'] += actual_value * offline_meter['kgco2e'] ################################################################################################################ # Step 4: query base period energy cost ################################################################################################################ query = (" SELECT start_datetime_utc, actual_value " " FROM tbl_offline_meter_hourly " " WHERE offline_meter_id = %s " " AND start_datetime_utc >= %s " " AND start_datetime_utc < %s " " ORDER BY start_datetime_utc ") cursor_billing.execute(query, (offline_meter['id'], base_start_datetime_utc, base_end_datetime_utc)) rows_offline_meter_hourly = cursor_billing.fetchall() rows_offline_meter_periodically = utilities.aggregate_hourly_data_by_period(rows_offline_meter_hourly, base_start_datetime_utc, base_end_datetime_utc, period_type) base['values'] = list() base['total_in_category'] = Decimal(0.0) for row_offline_meter_periodically in rows_offline_meter_periodically: actual_value = Decimal(0.0) if row_offline_meter_periodically[1] is None \ else row_offline_meter_periodically[1] base['values'].append(actual_value) base['total_in_category'] += actual_value ################################################################################################################ # Step 5: query reporting period energy consumption ################################################################################################################ query = (" SELECT start_datetime_utc, actual_value " " FROM tbl_offline_meter_hourly " " WHERE offline_meter_id = %s " " AND start_datetime_utc >= %s " " AND start_datetime_utc < %s " " ORDER BY start_datetime_utc ") cursor_energy.execute(query, (offline_meter['id'], reporting_start_datetime_utc, reporting_end_datetime_utc)) rows_offline_meter_hourly = cursor_energy.fetchall() rows_offline_meter_periodically = utilities.aggregate_hourly_data_by_period(rows_offline_meter_hourly, reporting_start_datetime_utc, reporting_end_datetime_utc, period_type) reporting = dict() reporting['timestamps'] = list() reporting['values'] = list() reporting['total_in_category'] = Decimal(0.0) reporting['total_in_kgce'] = Decimal(0.0) reporting['total_in_kgco2e'] = Decimal(0.0) for row_offline_meter_periodically in rows_offline_meter_periodically: current_datetime_local = row_offline_meter_periodically[0].replace(tzinfo=timezone.utc) + \ timedelta(minutes=timezone_offset) if period_type == 'hourly': current_datetime = current_datetime_local.strftime('%Y-%m-%dT%H:%M:%S') elif period_type == 'daily': current_datetime = current_datetime_local.strftime('%Y-%m-%d') elif period_type == 'weekly': current_datetime = current_datetime_local.strftime('%Y-%m-%d') elif period_type == 'monthly': current_datetime = current_datetime_local.strftime('%Y-%m') elif period_type == 'yearly': current_datetime = current_datetime_local.strftime('%Y') actual_value = Decimal(0.0) if row_offline_meter_periodically[1] is None \ else row_offline_meter_periodically[1] reporting['timestamps'].append(current_datetime) reporting['total_in_kgce'] += actual_value * offline_meter['kgce'] reporting['total_in_kgco2e'] += actual_value * offline_meter['kgco2e'] ################################################################################################################ # Step 6: query reporting period energy cost ################################################################################################################ query = (" SELECT start_datetime_utc, actual_value " " FROM tbl_offline_meter_hourly " " WHERE offline_meter_id = %s " " AND start_datetime_utc >= %s " " AND start_datetime_utc < %s " " ORDER BY start_datetime_utc ") cursor_billing.execute(query, (offline_meter['id'], reporting_start_datetime_utc, reporting_end_datetime_utc)) rows_offline_meter_hourly = cursor_billing.fetchall() rows_offline_meter_periodically = utilities.aggregate_hourly_data_by_period(rows_offline_meter_hourly, reporting_start_datetime_utc, reporting_end_datetime_utc, period_type) for row_offline_meter_periodically in rows_offline_meter_periodically: actual_value = Decimal(0.0) if row_offline_meter_periodically[1] is None \ else row_offline_meter_periodically[1] reporting['values'].append(actual_value) reporting['total_in_category'] += actual_value ################################################################################################################ # Step 7: query tariff data ################################################################################################################ parameters_data = dict() parameters_data['names'] = list() parameters_data['timestamps'] = list() parameters_data['values'] = list() tariff_dict = utilities.get_energy_category_tariffs(offline_meter['cost_center_id'], offline_meter['energy_category_id'], reporting_start_datetime_utc, reporting_end_datetime_utc) tariff_timestamp_list = list() tariff_value_list = list() for k, v in tariff_dict.items(): # convert k from utc to local k = k + timedelta(minutes=timezone_offset) tariff_timestamp_list.append(k.isoformat()[0:19]) tariff_value_list.append(v) parameters_data['names'].append('TARIFF-' + offline_meter['energy_category_name']) parameters_data['timestamps'].append(tariff_timestamp_list) parameters_data['values'].append(tariff_value_list) ################################################################################################################ # Step 8: construct the report ################################################################################################################ if cursor_system: cursor_system.close() if cnx_system: cnx_system.disconnect() if cursor_energy: cursor_energy.close() if cnx_energy: cnx_energy.disconnect() if cursor_billing: cursor_billing.close() if cnx_billing: cnx_billing.disconnect() result = { "offline_meter": { "cost_center_id": offline_meter['cost_center_id'], "energy_category_id": offline_meter['energy_category_id'], "energy_category_name": offline_meter['energy_category_name'], "unit_of_measure": config.currency_unit, "kgce": offline_meter['kgce'], "kgco2e": offline_meter['kgco2e'], }, "base_period": { "total_in_category": base['total_in_category'], "total_in_kgce": base['total_in_kgce'], "total_in_kgco2e": base['total_in_kgco2e'], "timestamps": base['timestamps'], "values": base['values'], }, "reporting_period": { "increment_rate": (reporting['total_in_category'] - base['total_in_category']) / base['total_in_category'] if base['total_in_category'] > 0 else None, "total_in_category": reporting['total_in_category'], "total_in_kgce": reporting['total_in_kgce'], "total_in_kgco2e": reporting['total_in_kgco2e'], "timestamps": reporting['timestamps'], "values": reporting['values'], }, "parameters": { "names": parameters_data['names'], "timestamps": parameters_data['timestamps'], "values": parameters_data['values'] }, } # export result to Excel file and then encode the file to base64 string result['excel_bytes_base64'] = \ excelexporters.offlinemetercost.export(result, offline_meter['name'], reporting_period_start_datetime_local, reporting_period_end_datetime_local, period_type) resp.text = json.dumps(result)