import uuid # For UUID creation
from initDb import initDb # For database initialization
from wisski.api import Api, Pathbuilder, Entity # For WissKI API
import os # For environment variable loading
from dotenv import load_dotenv # For environment variable loading
import pandas as pd # For dataframe handling

def importInspectionMarkRelation(api, engine):
    print('Importing inspection mark relations...')

    tableName = 'c__67b7_beziehung'
    bundleId = 'bd9b0ff8dc3a6d9284e1798531389bf1'

    try:
        processedRows = pd.read_csv(f'./logs/{tableName}.csv')
    except FileNotFoundError:
        processedRows = pd.DataFrame(columns=['id', 'uuid', 'uri'])

    # Load sources table
    inspectionMarkRelationsTable = pd.read_sql_table(tableName, con=engine)

    # Create inspectionMarkRelations
    for index, row in inspectionMarkRelationsTable.iterrows():
        # For every row in table...
        if index < len(processedRows) and inspectionMarkRelationsTable.loc[index, 'id'] == processedRows.loc[index, 'id']:
            # skip if already processed
            print(f'Skipping already processed inspectionMarkRelation {inspectionMarkRelationsTable.loc[index, "id"]}')
            continue
        # Create Entity property dicts
        inspectionMarkRelationValues = {}
        for key, value in row.items():
            # For every column in row...
            if (value is None) or (value == ''):
                #  skip if cell has no value
                continue
            # Properties of an entity have to be an array, so...
            value = str(value).replace('&###{{new_line}}###'.format(), '&')
            value = str(value).replace('###{{new_line}}###', '&')
            value = str(value).replace(' & ', '&')
            if '&' in str(value):
                # ...Explode "&"-separated values to array items
                value = [x.strip() for x in str(value).split('&')]
            else:
                # ...Or parse to array
                value = [value]
            # Map columns to fields. We use assignments for reification.
            match key:
                case 'id':
                    continue
                case 'f__uuid':
                    inspectionMarkRelationValues['ffd502413c286815811ae5546f73935b'] = value # UUID
                case 'f__67b8_bez_bz_nr':
                    inspectionMarkRelationValues['ff3f6dd331ed27515f6721ac8312706c'] = value # Inspection Mark Identifier
                case 'f__67b7_beziehung':
                    inspectionMarkRelationValues['f1cb8db7e1c26a5b5fe0c9d8fca60de2'] = value # Relation

                case _:
                    print(f'{key} is not a valid field, skipping.')

        # Create Material
        inspectionMarkRelation = Entity(api=api, fields=inspectionMarkRelationValues, bundle_id='bd9b0ff8dc3a6d9284e1798531389bf1')
        api.save(inspectionMarkRelation)

        print(f'Created inspection mark relation {index}: {inspectionMarkRelation.uri}')

        # Write log
        processedRows = processedRows._append({'id': row['id'], 'uuid': inspectionMarkRelationValues['ffd502413c286815811ae5546f73935b'][0], 'uri': inspectionMarkRelation.uri}, ignore_index=True)
        processedRows.to_csv(f'./logs/{tableName}.csv', index=False)

    print('finish')