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 importWorkshops(api, engine):
    print('Importing workshops...')

    tableName = "c__nfws_forts_werkst_"
    bundleId = 'beb03bccbdffdd31567df370303c1e2d'

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

    test = False
    # Load sources table
    workshopsTable = pd.read_sql_table(tableName, con=engine)

    # Create workshops
    for index, row in workshopsTable.iterrows():
        # For every row in table...
        if index < len(processedRows) and workshopsTable.loc[index, 'id'] == processedRows.loc[index, 'id']:
            # skip if already processed
            print(f'Skipping already processed entity {workshopsTable.loc[index, "id"]}')
            continue
        # Create Entity property dicts
        workshopValues = {}
        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':
                    docId = value[0]
                case 'f__uuid':
                    workshopValues['fa7c19f4d03d7d15acf588460654bbf2'] = value # UUID
                case 'f__nfws_forts_werkst_':
                    workshopValues['ff1aaeb118005d8506af6f56f7e424a4'] = value # Continued by
                case 'f__nfbm_bem_forts_':
                    workshopValues['f71d24e2922d3151603ce144c0972f40'] = value # Note
                case 'f__nfzr_zeitraumforts_':
                    workshopValues['f865ade60ba332a0a3ab4b77c39af7f4'] = value # Time-Span
                case _:
                    print(f'{key} is not a valid field, skipping.')

        # Create Material
        workshop = Entity(api=api, fields=workshopValues, bundle_id=bundleId)
        api.save(workshop)

        print(f'Created workshop {index}: {workshop.uri} of {len(workshopsTable)}')

        # Write log
        processedRows = processedRows._append({'id': row['id'], 'uuid': workshopValues['fa7c19f4d03d7d15acf588460654bbf2'][0], 'uri': workshop.uri}, ignore_index=True)
        processedRows.to_csv(f'./logs/{tableName}.csv', index=False)

        if test:
            exit()

    print('finished importing workshops')