Excel output WIP

crypto_tax/__init__.py

@@ -26,26 +26,13 @@ from fin_depo.data import *
 import datetime
 import dataclasses
 import logging
+import fin_data
+
+from .data import TaxReport, BoughtAndSold, BoughtAndNotYetSold
 
 logger = logging.getLogger(__name__)
 
-@dataclasses.dataclass
-class BoughtAndSold:
-    amount: AssetAmount
-    time_bought: datetime.datetime
-    time_sold: datetime.datetime
-
-@dataclasses.dataclass
-class BoughtAndNotYetSold:
-    amount: AssetAmount
-    time_bought: datetime.datetime
-
-
-@dataclasses.dataclass
-class TaxReport:
-    bought_and_sold_for: list[BoughtAndSold]
-    bought_and_spent_for: list[BoughtAndSold]
-    current_assets: dict[Asset, deque[BoughtAndNotYetSold]]
+FIN_DB = fin_data.FinancialDatabase(enable_kucoin=True, enable_nationalbanken_dk=True)
 
 
 def compute_tax(transfers: list) -> TaxReport:
@@ -117,8 +104,17 @@ def compute_tax(transfers: list) -> TaxReport:
             spend(fee, transfer.executed_time)
         del transfer, fee
 
+    def exchange_rate_at_time(a, b, t):
+        try:
+            sample = FIN_DB.get_exchange_rate_at_time(a, b, t)
+            return sample.average
+        except Exception:
+            logger.exception('Error when fetching exchange rate (%s,%s) at %s', a, b, t)
+            return None
+
     return TaxReport(
             bought_and_sold_for=bought_and_sold_for,
             bought_and_spent_for=bought_and_spent_for,
             current_assets=prices_bought_for,
+            exchange_rate_at_time=exchange_rate_at_time,
     )

crypto_tax/__main__.py

@@ -9,8 +9,9 @@ from fin_depo.data import *
 import datetime
 import dataclasses
 import logging
+from pathlib import Path
 
-from . import compute_tax
+from . import compute_tax, output_excel
 
 KUCOIN_CLIENT = fin_depo.defi_kucoin.KucoinDepoFetcher(
     secrets.KUCOIN_KEY,
@@ -52,6 +53,10 @@ def main():
     for bas in tax_report.bought_and_sold_for:
         sys.stdout.write(f'{bas.amount}  ({bas.time_bought} ----> {bas.time_sold})\n')
 
+    output_path = Path('./output/report.xlsx')
+    output_excel.produce_excel_report(tax_report, output_path)
+
+
 
 if __name__ == '__main__':
     main()

crypto_tax/data.py

@@ -0,0 +1,34 @@
+import sys
+import requests
+import fin_depo
+from . import secrets
+from fin_defs import CryptoCurrency, AssetAmount, MPC, Asset, USDT
+from decimal import Decimal
+from collections import deque
+from collections.abc import Callable
+from fin_depo.data import *
+import datetime
+import dataclasses
+import logging
+
+@dataclasses.dataclass
+class BoughtAndSold:
+    amount: AssetAmount
+    time_bought: datetime.datetime
+    time_sold: datetime.datetime
+
+@dataclasses.dataclass
+class BoughtAndNotYetSold:
+    amount: AssetAmount
+    time_bought: datetime.datetime
+
+
+@dataclasses.dataclass
+class TaxReport:
+    bought_and_sold_for: list[BoughtAndSold]
+    bought_and_spent_for: list[BoughtAndSold]
+    current_assets: dict[Asset, deque[BoughtAndNotYetSold]]
+    exchange_rate_at_time: Callable[[Asset,Asset, datetime.datetime ], Decimal]
+
+
+

crypto_tax/output_excel.py

@@ -0,0 +1,93 @@
+import sys
+import requests
+import fin_depo
+from . import secrets
+import fin_defs
+from decimal import Decimal
+from collections import deque
+from fin_depo.data import *
+import datetime
+import dataclasses
+import logging
+
+from .data import TaxReport, BoughtAndSold, BoughtAndNotYetSold
+from pathlib import Path
+
+import openpyxl
+
+TAX_TYPES: dict[fin_defs.Asset, str] = {
+        fin_defs.DKK: 'Fiat',
+        fin_defs.EUR: 'Fiat',
+        fin_defs.BTC: 'Krypto-valuta',
+        fin_defs.MPC: 'Krypto-valuta',
+        fin_defs.WELL_KNOWN_SYMBOLS['MATIC']: 'Krypto-valuta',
+        fin_defs.USDT: 'Stable Coin (Financiel Kontrakt)',
+}
+
+NOW = datetime.datetime.now(tz=datetime.UTC)
+
+def mult_a(a, b):
+    if a is None or b is None:
+        return 'Unknown'
+    return a * b
+
+def write_current_assets(sheet, tax_report: TaxReport):
+    column_headers = ['Værdipapir', 'Mængde', 'Estimeret værdi (DKK)',
+                      'Beskatningstype']
+    sheet.append(column_headers)
+    for asset, positions in tax_report.current_assets.items():
+        total_amount: Decimal = sum((p.amount.amount for p in positions), start=Decimal(0))
+        exchange_rate_asset_to_dkk = tax_report.exchange_rate_at_time(asset, fin_defs.DKK, NOW)
+        assert exchange_rate_asset_to_dkk is not None, asset
+        row = [
+                asset.raw_short_name(),
+                total_amount,
+                mult_a(total_amount, exchange_rate_asset_to_dkk),
+                TAX_TYPES[asset],
+        ]
+        sheet.append(row)
+        del asset, positions, row, total_amount
+
+
+def write_fifo_sheet(sheet, tax_report: TaxReport):
+    column_headers = [
+            'Værdipapir', 'Mængde', 'Anskaffelsesværdi (DKK)', 'Købsdato (UTC)',
+            'Salgsværdi (DKK)', 'Salgsdato (UTC)', 'Profit (DKK)', 'Tab (DKK)',
+            'Beskatningstype',
+    ]
+    sheet.append(column_headers)
+    row_idx = 2
+    for fifo_entry in tax_report.bought_and_sold_for:
+        print(fifo_entry)
+        asset = fifo_entry.amount.asset
+
+        exchange_rate_dkk_bought = tax_report.exchange_rate_at_time(asset, fin_defs.DKK, fifo_entry.time_bought)
+        #assert exchange_rate_dkk_bought is not None, asset
+        exchange_rate_dkk_sold = tax_report.exchange_rate_at_time(asset, fin_defs.DKK, fifo_entry.time_sold)
+        #assert exchange_rate_dkk_bought is not None, asset
+
+        row = [
+               asset.raw_short_name(),
+               fifo_entry.amount.amount,
+               mult_a(fifo_entry.amount.amount , exchange_rate_dkk_bought),
+               fifo_entry.time_bought.replace(tzinfo=None),
+               mult_a(fifo_entry.amount.amount , exchange_rate_dkk_sold),
+               fifo_entry.time_sold.replace(tzinfo=None),
+               f'=max(0, E{row_idx} - C{row_idx})',
+               f'=max(0, C{row_idx} - E{row_idx})',
+                TAX_TYPES[asset],
+        ]
+        sheet.append(row)
+        row_idx+= 1
+        del fifo_entry, asset, row
+
+def produce_excel_report(report: TaxReport, output_path: Path):
+    workbook = openpyxl.Workbook()
+
+    workbook.active.title = 'Current Assets'
+    write_current_assets(workbook.active, report)
+
+    sheet_buy_sales = workbook.create_sheet('FIFO')
+    write_fifo_sheet(sheet_buy_sales, report)
+
+    workbook.save(output_path)