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import pandas as pd
import mysql.connector
import json
from base64 import b64decode as base_b64decode
from base64 import b64encode as base_b64encode

releaseId = '275.2'
releaseType = 'DEPLOYED'
replicationTarget = 'TESTING'
catalogId = ''
opId = 'HOB'
buId = 'DEFAULT'
replicationJobId = ''
json_file_path = "/app/scripts/PPM_Release_Management/Product_Catalog_ETL/config/ppm_reply.json"

try:
    with open(json_file_path) as json_file:
        json_data = json.load(json_file)
    # For PPM_PC
    encrypt = json_data.get('PPM_PC', {}).get('ENCRYPT')
    host = json_data.get('PPM_PC', {}).get('DB_HOST')
    port = json_data.get('PPM_PC', {}).get('DB_PORT')
    user = json_data.get('PPM_PC', {}).get('DB_USER')
    schema = json_data.get(replicationTarget, {}).get('DB_SCHEMA')

    if encrypt == 'Y':
        password = base_b64decode(json_data.get('PPM_PC', {}).get('DB_PASSWORD')).decode('utf-8')
    else:
        password = json_data.get('PPM_PC', {}).get('DB_PASSWORD')

    cnx = mysql.connector.connect(user=user, password=password, host=host, port=port)
    cursor = cnx.cursor()

    primary_query = f"SELECT * FROM {schema}.etl_ppm_replication_master"
    cursor.execute(primary_query)

    rows = cursor.fetchall()
    columns = [desc[0] for desc in cursor.description]
    df = pd.DataFrame(rows, columns=columns)

    # replicationTarget
    encrypt_tar = json_data.get(replicationTarget, {}).get('ENCRYPT')
    host_tar = json_data.get(replicationTarget, {}).get('DB_HOST')
    port_tar = json_data.get(replicationTarget, {}).get('DB_PORT')
    user_tar = json_data.get(replicationTarget, {}).get('DB_USER')

    if encrypt_tar == 'Y':
        password = base_b64decode(json_data.get(replicationTarget, {}).get('DB_PASSWORD')).decode('utf-8')
    else:
        password = json_data.get(replicationTarget, {}).get('DB_PASSWORD')

    cnx_tar = mysql.connector.connect(user=user_tar, password=password, host=host_tar, port=port_tar)
    cursor_tar = cnx_tar.cursor()
    replaced_string=""

    if releaseType == 'DEPLOYED':
        order = ['MASTER-CHILD', 'AUDIT-CHILD', 'MASTER', 'AUDIT', 'RELEASE']
        filtered_df = df.loc[
            df['eprm_catalog'].isin(['PC']) & (df['eprm_enabled_flg'] == 'Y') & df['eprm_table_type'].isin(
                order)].copy()
        filtered_df['eprm_table_type'] = pd.Categorical(filtered_df['eprm_table_type'], categories=order, ordered=True)
        filtered_df = filtered_df.sort_values('eprm_table_type')

        for _, row in filtered_df.iterrows():
            eprm_table_name = row['eprm_table_name']
            eprm_join_cols_entity = row['eprm_join_cols_entity']
            eprm_join_cols_reim = row['eprm_join_cols_reim']
            eprm_table_alias = row['eprm_table_alias']
            eprm_table_type = row['eprm_table_type']
            eprm_parent_table_name=row['eprm_parent_table_name']

            if eprm_table_type == 'AUDIT':
                eprm_table_col_pk = row['eprm_table_col_pk']
                query = f"SELECT COUNT(*) FROM {schema}.{eprm_table_name} WHERE (" + eprm_table_col_pk + f") IN (SELECT entity_ref_nbr FROM  {schema}.release_entity_inst_map WHERE release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "')"
                try:
                    cursor_tar.execute(query)
                    result = cursor_tar.fetchone()
                    print(f"Count for {eprm_table_name}: {result[0]} (audit)")
                except mysql.connector.Error as err:
                    print(f"Error occurred while executing the query: {err}")

            elif eprm_table_type == 'MASTER':
                clause_removed_reim_join = eprm_join_cols_reim.replace(" AND", "").replace("=", "")
                remove_string = [eprm_table_alias + "." + v for v in eprm_join_cols_entity.split(",")]

                if eprm_table_alias + ".version" not in remove_string and eprm_table_alias + ".version" in eprm_join_cols_reim:
                    remove_string = remove_string + [eprm_table_alias + ".version"]
                    eprm_join_cols_entity = eprm_join_cols_entity + ", version"

                reim_select_cols = clause_removed_reim_join
                for v in remove_string:
                    reim_select_cols = reim_select_cols.replace(v, "").replace("reim.", "")
                reim_select_cols = reim_select_cols.replace(" ", ",")

                if eprm_table_alias + ".version" in remove_string and "reim.version" not in eprm_join_cols_reim:
                    reim_select_cols = reim_select_cols + ",version"

                split_parts = reim_select_cols.split(',')
                replaced_parts = []
                for part in split_parts:
                    dot_index = part.find('.')
                    if dot_index != -1:
                        replaced_part = part[dot_index + 1:]
                        replaced_parts.append(replaced_part)
                    else:
                        replaced_parts.append(part)

                replaced_string = ','.join(replaced_parts)

                secondary_query = f"SELECT COUNT(*) FROM {schema}.{eprm_table_name} WHERE (" + eprm_join_cols_entity + ") IN (SELECT " + replaced_string + f" FROM {schema}.release_entity_inst_map WHERE release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "')"

                try:
                    cursor_tar.execute(secondary_query)
                    result = cursor_tar.fetchone()
                    print(f"Count for {eprm_table_name}: {result[0]} (master)")
                except mysql.connector.Error as err:
                    print(f"Error occurred while executing the query: {err}")