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###########################################################################################################################
"""
AUTHOR - M.Veerendra Kumar
EMP-ID - 2009927
SCRIPT - PPM delete script
DESCRIPTION - The below script deletes ppm table records dynamically upon passing the values
"""
############################################################################################################################


import pandas as pd
import mysql.connector
import json
from base64 import b64decode as base_b64decode
from base64 import b64encode as base_b64encode
import logging
import datetime
import os
from sqlalchemy import create_engine as sqlalchemy_create_engine
from pandas import read_sql as pd_read_sql

#def func_pandas_factory(__col_names, __rows):
#    return pd_DataFrame(__rows, columns=__col_names)
def func_pandas_factory(__col_names, __rows):
    print("Row_Factory")
    # Convert tuple items of '__rows' into list (elements of tuples cannot be replaced)
    __rows = [list(i) for i in __rows]
    # Convert only 'OrderedMapSerializedKey' type list elements into dict
    for idx_row, i_row in enumerate(__rows):
        for idx_value, i_value in enumerate(i_row):
            if type(i_value) is cass_OrderedMapSerializedKey:
                __rows[idx_row][idx_value] = dict(__rows[idx_row][idx_value])
    return pd_DataFrame(__rows, columns=__col_names)
# endDef==>func_pandas_factory()


releaseId = '275.2'
releaseType = 'Deployed'
replicationTarget = 'SOURCE'
catalogId = ''
opId = 'HOB'
buId = 'DEFAULT'
replicationJobId = 'REP_990_234'
json_file_path = "/app/scripts/PPM_Release_Management/Product_Catalog_ETL/config/ppm_reply.json"
sql_log_file = f"/app/scripts/PPM_Release_Management/Product_Catalog_ETL/logs/{replicationJobId}ppm_reply.sql"
log_file = f'/app/scripts/PPM_Release_Management/Product_Catalog_ETL/logs/{replicationJobId}ppm_reply.log'
# sql_log_file = os.get_path("PPM_PC_LOG") + "/" + replicationJobId + "_ppm_pc_replication_delete.sql"
# json_file_path = os.get_path("PPM_PC_CONFIG") + "/ppm_pc_replication.json"
# log_file = os.get_path("PPM_PC_LOG") + "/" + replicationJobId + "_ppm_pc_replication_delete.log"
logging.basicConfig(
    filename=log_file,
    level=logging.INFO, format='%(asctime)s - %(message)s', datefmt='%Y-%m-%d %H:%M:%S')
query_count = 0
sql_log_file = open(sql_log_file, "w")


def write_sql(query_info):
    sql_log_file.write(query_info)
    sql_log_file.write('\n')


try:
    def connect_to_database(json_data, replicationTarget):
        encrypt = json_data.get(replicationTarget, {}).get('ENCRYPT')
        host = json_data.get(replicationTarget, {}).get('DB_HOST')
        port = json_data.get(replicationTarget, {}).get('DB_PORT')
        user = json_data.get(replicationTarget, {}).get('DB_USER')
        db_type = json_data.get(replicationTarget, {}).get('DB_TYPE')
        schema = json_data.get(replicationTarget, {}).get('DB_SCHEMA')
        if encrypt == 'Y':
            password = base_b64decode(json_data.get(replicationTarget, {}).get('DB_PASSWORD')).decode('utf-8')
        else:
            password = json_data.get(replicationTarget, {}).get('DB_PASSWORD')
        if db_type == 'MYSQL':
            cnx = mysql.connector.connect(user=user, password=password, host=host, port=port)
            cursor = cnx.cursor()
            logging.info(f"connected to database server {replicationTarget}: {host}:{port}")
        elif db_type == 'ORACLE':
            import oracledb
            oracle_mode = oracledb.is_thin_mode()
            print("Oracle mode: %s" % oracle_mode)
            if oracle_mode:
                oracledb.init_oracle_client()
                print("Enabled python-oracledb Thick mode")
            else:
                print("Default python-oracledb Thick mode")

            cnx_text = ('oracle://%s:%s@%s:%s/?service_name=%s' % (user, password, host, port, schema))
            cnx = sqlalchemy_create_engine(cnx_text, encoding="utf8")
            cnx = connection.raw_connection()
            cursor = cnx.cursor()
        return cnx, cursor, schema


    with open(json_file_path) as json_file:
        json_data = json.load(json_file)

    conn_ppm, cursor_ppm, schema_ppm = connect_to_database(json_data, 'PPM_PC')
    ##cursor_ppm = conn_ppm.cursor()
    primary_query = f"SELECT * FROM {schema_ppm}.etl_ppm_replication_master"
    df=pd_read_sql(primary_query,con=conn_ppm)
    columns=df.columns.tolist()
    rows=df.values.tolist()

    # replicationTarget

    connection_tar, cursor_tar, schema_tar = connect_to_database(json_data, replicationTarget)
    # cursor_tar = connection_tar.cursor()
    replaced_string = ""

    if releaseType.casefold() == 'DEPLOYED'.casefold():
        logging.info(f"processing - {releaseType}")
        order = ['MASTER-CHILD', 'AUDIT-CHILD', 'MASTER', 'AUDIT', 'RELEASE']
        logging.info("order of execution - 'MASTER-CHILD', 'AUDIT-CHILD', 'MASTER', 'AUDIT', 'RELEASE'")
        filtered_df = df.loc[
            df['eprm_catalog'].isin(['PC', 'RELEASE']) & (df['eprm_enabled_flg'].isin(['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')
        df = df.sort_values('eprm_seq_nbr', ascending=False)

        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_tar}.{eprm_table_name} WHERE (" + eprm_table_col_pk + f") IN (SELECT entity_ref_nbr FROM  {schema_tar}.release_entity_inst_map WHERE release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "')"
                try:
                    logging.info(f"processing {eprm_table_type}")
                    cursor_tar.execute(query)
                    result = cursor_tar.fetchone()
                    query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                    query_info += f"-- #Query: Result:{result[0]}\n"
                    query_count += 1
                    query_info += query + ";\n"
                    write_sql(query_info)
                    print(f"Count for {eprm_table_name}: {result[0]} (audit)")
                    logging.info(f"Count for {eprm_table_name}: {result[0]} (audit)")
                except mysql.connector.Error as err:
                    print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))
                    print(f"Error occurred while executing the query:{query}: {err}")
                    logging.info(f"Error occurred while executing the query:{query}: {err}")
            if eprm_table_type == 'RELEASE':
                eprm_table_name = row['eprm_table_name']
                eprm_seq_nbr = row['eprm_seq_nbr']
                query = f"SELECT COUNT(*) FROM {schema_tar}.{eprm_table_name} where release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "'"
                try:
                    logging.info(f"processing {eprm_table_type}")
                    cursor_tar.execute(query)
                    result = cursor_tar.fetchone()
                    query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                    query_info += f"-- #Query: Result:{result[0]}\n"
                    query_count += 1
                    query_info += query + ";\n"
                    write_sql(query_info)
                    print(f"Count for {eprm_table_name}: {result[0]} (release){eprm_seq_nbr}")
                    logging.info(f"Count for {eprm_table_name}: {result[0]} (release)")
                except mysql.connector.Error as err:
                    print(f"Error occurred while executing the query:{query}: {err}")
                    logging.info(f"Error occurred while executing the query:{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_tar}.{eprm_table_name} WHERE (" + eprm_join_cols_entity + ") IN (SELECT " + replaced_string + f" FROM {schema_tar}.release_entity_inst_map WHERE release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "')"

                try:
                    logging.info(f"processing {eprm_table_type}")
                    cursor_tar.execute(secondary_query)
                    result = cursor_tar.fetchone()
                    query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                    query_info += f"-- #Query: Result:{result[0]}\n"
                    query_info += secondary_query + ";\n"
                    query_count += 1
                    write_sql(query_info)
                    logging.info(f"Count for {eprm_table_name}: {result[0]} (master)")
                    print(f"Count for {eprm_table_name}: {result[0]} (master)")
                except mysql.connector.Error as err:
                    print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))
                    print(f"Error occurred while executing the query:{secondary_query}: {err}")
                    logging.info(f"Error occurred while executing the query:{secondary_query}: {err}")
            elif eprm_table_type == 'MASTER-CHILD':
                qry = f"select * from {schema_tar}.etl_ppm_replication_master WHERE eprm_table_name=" + "'" + eprm_parent_table_name + "'"
                cursor_tar.execute(qry)
                rows = cursor_tar.fetchall()
                columns = [desc[0] for desc in cursor_tar.description]
                df_child = pd.DataFrame(rows, columns=columns)
                filtered_df_child = df_child[
                    df_child['eprm_catalog'].isin(['PC']) & (df_child['eprm_enabled_flg'] == 'Y') & df_child[
                        'eprm_table_type'].isin(
                        ['MASTER'])]
                for _, row in filtered_df_child.iterrows():
                    eprm_table_name_child = row['eprm_table_name']
                    eprm_join_cols_entity_child = row['eprm_join_cols_entity']
                    eprm_join_cols_reim_child = row['eprm_join_cols_reim']
                    eprm_table_type_child = row['eprm_table_type']
                    if eprm_table_type_child == 'MASTER':
                        print(eprm_join_cols_reim)
                        split_conditions_reim = eprm_join_cols_reim.split('AND')
                        where_clause_reim = []
                        for condition in split_conditions_reim:
                            condition = condition.split('=')[1]
                            condition = condition.split('.')[1]
                            where_clause_reim.append(condition.strip())
                        where_clause_reim = ','.join(where_clause_reim)

                        print(where_clause_reim)

                        values_child = eprm_join_cols_entity_child.split('=')
                        column_names_child = [value.split('.')[-1].strip() for value in values_child]
                        where_clause_child = ', '.join(column_names_child)

                        split_conditions = eprm_join_cols_reim_child.split(' AND ')
                        result = [condition.split('=')[0].split('.')[-1] for condition in split_conditions]

                        where_clause = ', '.join(result)

                        final_query = f"SELECT COUNT(*) FROM {schema_tar}.{eprm_table_name} WHERE ({where_clause_reim}) IN (select {where_clause_reim} from {schema_tar}.{eprm_table_name_child} where ({where_clause_child}) IN (select " + where_clause + f" FROM {schema_tar}.RELEASE_ENTITY_INST_MAP WHERE release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "'))"
                        print(final_query)
                        try:
                            cursor_tar.execute(final_query)
                            logging.info(f"processing - {eprm_table_type}")
                            result = cursor_tar.fetchone()
                            query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                            query_info += f"-- #Query: Result:{result[0]}\n"
                            query_count += 1
                            query_info += final_query + ";\n"
                            write_sql(query_info)
                            logging.info(f"Count for {eprm_table_name}: {result[0]}")
                            print(
                                f"Count for {eprm_table_name}: {result[0]}" + " ---------------------MASTER-AUDIT------------------")
                        except mysql.connector.Error as err:
                            print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))
                            print(f"Error occurred while executing the query:{final_query}: {err}")
                            logging.info(f"Error occurred while executing the query:{final_query}: {err}")
            elif eprm_table_type == 'AUDIT-CHILD':
                qry = f"select * from {schema_tar}.etl_ppm_replication_master WHERE eprm_table_name=" + "'" + eprm_parent_table_name + "'"
                cursor_tar.execute(qry)
                rows = cursor_tar.fetchall()
                columns = [desc[0] for desc in cursor_tar.description]
                df_child = pd.DataFrame(rows, columns=columns)
                filtered_df_child = df_child[
                    df_child['eprm_catalog'].isin(['PC']) & (df_child['eprm_enabled_flg'] == 'Y') & df_child[
                        'eprm_table_type'].isin(
                        ['AUDIT'])]
                for _, row in filtered_df_child.iterrows():
                    eprm_table_name_child = row['eprm_table_name']
                    eprm_join_cols_entity_child = row['eprm_join_cols_entity']
                    eprm_join_cols_reim_child = row['eprm_join_cols_reim']
                    eprm_table_type_child = row['eprm_table_type']
                    if eprm_table_type_child == 'AUDIT':
                        print(eprm_join_cols_reim)
                        split_conditions_reim = eprm_join_cols_reim.split('AND')
                        where_clause_reim = []
                        for condition in split_conditions_reim:
                            condition = condition.split('=')[1]
                            condition = condition.split('.')[1]
                            where_clause_reim.append(condition.strip())
                        where_clause_reim = ','.join(where_clause_reim)

                        print(where_clause_reim)

                        values_child = eprm_join_cols_entity_child.split('=')
                        column_names_child = [value.split('.')[-1].strip() for value in values_child]
                        where_clause_child = ', '.join(column_names_child)

                        split_conditions = eprm_join_cols_reim_child.split(' AND ')
                        result = [condition.split('=')[0].split('.')[-1] for condition in split_conditions]

                        where_clause = ', '.join(result)

                        final_query = f"SELECT COUNT(*) FROM {schema_tar}.{eprm_table_name} WHERE ({where_clause_reim}) IN (select {where_clause_reim} from {schema_tar}.{eprm_table_name_child} where ({where_clause_child}) IN (select " + where_clause + f" FROM {schema_tar}.RELEASE_ENTITY_INST_MAP WHERE release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "'))"
                        print(final_query)
                        try:
                            logging.info(f"processing - {eprm_table_type}")
                            cursor_tar.execute(final_query)
                            result = cursor_tar.fetchone()
                            query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                            query_info += f"-- #Query: Result:{result[0]}\n"
                            query_count += 1
                            query_info += final_query + ";\n"
                            write_sql(query_info)
                            print(
                                f"Count for {eprm_table_name}: {result[0]}" + " ---------------------AUDIT-CHILD------------------")
                            logging.info(f"Count for {eprm_table_name}: {result[0]}")
                        except mysql.connector.Error as err:
                            print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))

                            print(f"Error occurred while executing the query:{final_query}: {err}")
                            logging.info(f"Error occurred while executing the query:{final_query}: {err}")



    elif releaseType.casefold() == 'TESTING'.casefold() or releaseType.casefold() == 'INPROGRESS'.casefold():
        logging.info(f"{releaseType}")
        filtered_df = df[df['eprm_catalog'].isin(['PC', 'RELEASE']) & (df['eprm_enabled_flg'].isin(['Y', 'N'])) & df[
            'eprm_table_type'].isin(
            ['AUDIT', 'RELEASE'])]
        filtered_df = filtered_df.sort_values('eprm_table_type')
        df = df.sort_values('eprm_seq_nbr', ascending=False)
        for _, row in filtered_df.iterrows():
            eprm_table_name = row['eprm_table_name']
            eprm_table_col_pk = row['eprm_table_col_pk']
            eprm_table_type = row['eprm_table_type']
            eprm_seq_nbr = row['eprm_seq_nbr']

            if eprm_table_type == 'RELEASE':
                eprm_table_name = row['eprm_table_name']
                query = f"SELECT COUNT(*) FROM {schema}.{eprm_table_name} where release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "'"
                try:
                    logging.info(f"processing {eprm_table_type}")
                    cursor_tar.execute(query)
                    result = cursor_tar.fetchone()
                    query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                    query_info += f"-- #Query: Result:{result[0]}\n"
                    query_count += 1
                    query_info += query + ";\n"
                    write_sql(query_info)
                    print(f"Count for {eprm_table_name}: {result[0]} (release){eprm_seq_nbr}")
                    logging.info(f"Count for {eprm_table_name}: {result[0]} (release)")
                except mysql.connector.Error as err:
                    print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))
                    print(f"Error occurred while executing the query:{query}: {err}")
                    logging.info(f"Error occurred while executing the query:{query}: {err}")

            if eprm_table_type == 'AUDIT':
                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:
                    logging.info(f"processing {eprm_table_type}")
                    cursor_tar.execute(query)
                    result = cursor_tar.fetchone()
                    query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                    query_info += f"-- #Query: Result:{result[0]}\n"
                    query_info += query + ";\n"
                    query_count += 1
                    write_sql(query_info)
                    print(f"Count for {eprm_table_name}: {result[0]}" + " inprogress-audit")
                    logging.info(f"Count for {eprm_table_name}: {result[0]}" + " inprogress-audit")
                except mysql.connector.Error as err:
                    print(f"Error occurred while executing the query:{query}: {err}")
                    print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))
                    logging.info(f"Error occurred while executing the query:{query}: {err}")


    else:
        print("Release Type is not defined")
        logging.info("Release Type is not defined")
    # PC_EXT
    replicationTarget_EXT = replicationTarget + '_EXT'
    connection_ext, cursor_ext, schema_ext = connect_to_database(json_data, replicationTarget_EXT)
    cursor_ext = connection_ext.cursor()

    filtered_df = df[df['eprm_catalog'].isin(['PC_EXT']) & (df['eprm_enabled_flg'].isin(['Y']))]
    if len(filtered_df) > 0:
        for _, row in filtered_df.iterrows():
            eprm_table_name = row['eprm_table_name']
            if eprm_table_name != 'PKG_PRD_FED_EXT_ATTRS':
                query = f"SELECT COUNT(*) FROM {schema_ext}.{eprm_table_name} where release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "'"
                try:
                    cursor_ext.execute(query)
                    result = cursor_ext.fetchone()
                    query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                    query_info += f"-- #Query: Result:{result[0]}\n"
                    query_count += 1
                    query_info += query + ";\n"
                    write_sql(query_info)
                    print(f"Count for {eprm_table_name}: {result[0]}" + "PC_EXT")
                    logging.info(f"Count for {eprm_table_name}: {result[0]}")
                    if query_count > 0:
                        try:
                            query_del = f"SELECT COUNT(*) FROM {schema_ext}.{eprm_table_name} where release_id='" + releaseId + "' AND op_id='" + opId + "' AND bu_id='" + buId + "'"
                            cursor_ext.execute(query_del)
                            result = cursor_ext.fetchone()
                            query_info = f"-- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ STATUS|{replicationTarget}| TABLE| {eprm_table_name}\n"
                            query_info += f"-- #Query: Result:{result[0]}\n"
                            query_count += 1
                            query_info += query + ";\n"
                            write_sql(query_info)
                            print(f"Count for {eprm_table_name}: {result[0]}" + "PC_EXT for deletion")
                        except mysql.connector.Error as err:
                            print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))
                            print(f"Error occurred while executing the query:{query}: {err}")
                            logging.info(f"Error occurred while executing the query:{query}: {err}")
                except mysql.connector.Error as err:
                    print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))
                    print(f"Error occurred while executing the query :{query}: {err}")
                    logging.info(f"Error occurred while executing the query:{query}: {err}")
    logging.info("COMPLETED")

except mysql.connector.Error as err:
    print("Error - {} . Line No - {} ".format(str(exp), str(sys.exc_info()[-1].tb_lineno)))
    print(f"An error occurred: {err}")
    logging.info(f"An error occurred: {err}")

finally:
    if cursor_tar:
        cursor_tar.close()
    if connection_tar:
        connection_tar.close()
    if cursor_ppm:
        cursor_ppm.close()
    if conn_ppm:
        conn_ppm.close()
    if json_file:
        json_file.close()
    if sql_log_file:
        sql_log_file.close()