Merge pull request #5 from eledio-helpers/feature/docs

Docs

.github/workflows/deploy-docs.yml

@@ -0,0 +1,33 @@
+name: Deploy Sphinx Documentation
+
+on: [push]
+permissions:
+  contents: write
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+
+      - name: Install dependencies
+        run: |
+          pip install sphinx sphinx-rtd-theme
+          pip install -e .
+
+      - name: Build documentation
+        run: |
+          make -C docs html
+          touch docs/build/html/.nojekyll
+
+      - name: Deploy to GitHub Pages
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          branch: gh-pages
+          folder: docs/build/html

.github/workflows/pylint.yml

@@ -0,0 +1,48 @@
+name: Pylint
+
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.10"]
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install pylint
+    - name: pylint
+      run: |
+        pylint $(git ls-files '*.py') --fail-under=9.0 --output-format=json > pylint-report.json
+
+    - name: Generate Pylint Score
+      id: pylint_score
+      run: |
+        SCORE=$(cat pylint-report.json | jq '[.[].score] | add / length' || echo 0)
+        echo "score=${SCORE:-0}" >> $GITHUB_ENV
+
+    - name: Upload Pylint Report
+      uses: actions/upload-artifact@v4
+      with:
+        name: pylint-report
+        path: pylint-report.json
+
+    - name: Create Pylint Badge
+      run: |
+        SCORE=$(echo "${{ env.score }}" | awk '{print int($1)}')
+        COLOR="red"
+        if [ "$SCORE" -ge 8 ]; then COLOR="green"; elif [ "$SCORE" -ge 5 ]; then COLOR="yellow"; fi
+        curl -o pylint-badge.svg "https://img.shields.io/badge/Pylint-$SCORE%2F10-$COLOR"
+
+    - name: Upload Pylint Badge
+      uses: actions/upload-artifact@v4
+      with:
+        name: pylint-badge
+        path: pylint-badge.svg

README.md

@@ -1,5 +1,9 @@
 # SuperFaktura API client
 
+![Pylint Score](https://github.com/eledio-helpers/superfaktura-client/actions/workflows/pylint.yml/badge.svg)
+
+[Online documentation](https://eledio-helpers.github.io/superfaktura-client)
+
 Library for handling of SuperFaktura API.
 
 Environment variables:

docs/Makefile

@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = source
+BUILDDIR      = build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

docs/make.bat

@@ -0,0 +1,35 @@
+@ECHO OFF
+
+pushd %~dp0
+
+REM Command file for Sphinx documentation
+
+if "%SPHINXBUILD%" == "" (
+	set SPHINXBUILD=sphinx-build
+)
+set SOURCEDIR=source
+set BUILDDIR=build
+
+%SPHINXBUILD% >NUL 2>NUL
+if errorlevel 9009 (
+	echo.
+	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
+	echo.installed, then set the SPHINXBUILD environment variable to point
+	echo.to the full path of the 'sphinx-build' executable. Alternatively you
+	echo.may add the Sphinx directory to PATH.
+	echo.
+	echo.If you don't have Sphinx installed, grab it from
+	echo.https://www.sphinx-doc.org/
+	exit /b 1
+)
+
+if "%1" == "" goto help
+
+%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+goto end
+
+:help
+%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS% %O%
+
+:end
+popd

docs/source/conf.py

@@ -0,0 +1,34 @@
+# Configuration file for the Sphinx documentation builder.
+#
+# For the full list of built-in configuration values, see the documentation:
+# https://www.sphinx-doc.org/en/master/usage/configuration.html
+import os
+import sys
+sys.path.insert(0, os.path.abspath('../..'))
+
+# -- Project information -----------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
+
+project = 'SuperFaktura API client'
+copyright = '2025, Richard Kubíček, Eledio s.r.o.'
+author = 'Richard Kubíček'
+
+# -- General configuration ---------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
+
+extensions = [
+    'sphinx.ext.autodoc',
+    'sphinx.ext.napoleon',
+    'sphinx.ext.autosummary',
+]
+
+templates_path = ['_templates']
+exclude_patterns = []
+
+
+
+# -- Options for HTML output -------------------------------------------------
+# https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
+
+html_theme = 'sphinx_rtd_theme'
+html_static_path = ['_static']

docs/source/index.rst

@@ -0,0 +1,8 @@
+Welcome to SuperFaktura Client's documentation
+=============================================
+
+.. toctree::
+   :maxdepth: 2
+
+   superfaktura
+   installation

docs/source/installation.rst

@@ -0,0 +1,6 @@
+Installation
+====================
+
+To install SuperFaktura Client, run the following command::
+
+    pip install git+https://github.com/eledio-helpers/superfaktura-client

docs/source/superfaktura.bank_account.rst

@@ -0,0 +1,7 @@
+superfaktura.bank\_account module
+=================================
+
+.. automodule:: superfaktura.bank_account
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.client_contacts.rst

@@ -0,0 +1,7 @@
+superfaktura.client\_contacts module
+====================================
+
+.. automodule:: superfaktura.client_contacts
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.enumerations.currency.rst

@@ -0,0 +1,7 @@
+superfaktura.enumerations.currency module
+=========================================
+
+.. automodule:: superfaktura.enumerations.currency
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.enumerations.rst

@@ -0,0 +1,21 @@
+superfaktura.enumerations package
+=================================
+
+Submodules
+----------
+
+superfaktura.enumerations.currency module
+-----------------------------------------
+
+.. automodule:: superfaktura.enumerations.currency
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+Module contents
+---------------
+
+.. automodule:: superfaktura.enumerations
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.invoice.rst

@@ -0,0 +1,7 @@
+superfaktura.invoice module
+===========================
+
+.. automodule:: superfaktura.invoice
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.rst

@@ -0,0 +1,35 @@
+SuperFaktura API client
+====================
+
+
+Bank account
+---------------------------------
+
+.. automodule:: superfaktura.bank_account
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+Client contacts
+------------------------------------
+
+.. automodule:: superfaktura.client_contacts
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+Invoice
+---------------------------
+
+.. automodule:: superfaktura.invoice
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+SuperFaktura API
+-------------------------------------
+
+.. automodule:: superfaktura.superfaktura_api
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.superfaktura_api.rst

@@ -0,0 +1,7 @@
+superfaktura.superfaktura\_api module
+=====================================
+
+.. automodule:: superfaktura.superfaktura_api
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.utils.country.rst

@@ -0,0 +1,7 @@
+superfaktura.utils.country module
+=================================
+
+.. automodule:: superfaktura.utils.country
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.utils.data_types.rst

@@ -0,0 +1,7 @@
+superfaktura.utils.data\_types module
+=====================================
+
+.. automodule:: superfaktura.utils.data_types
+   :members:
+   :undoc-members:
+   :show-inheritance:

docs/source/superfaktura.utils.rst

@@ -0,0 +1,29 @@
+superfaktura.utils package
+==========================
+
+Submodules
+----------
+
+superfaktura.utils.country module
+---------------------------------
+
+.. automodule:: superfaktura.utils.country
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+superfaktura.utils.data\_types module
+-------------------------------------
+
+.. automodule:: superfaktura.utils.data_types
+   :members:
+   :undoc-members:
+   :show-inheritance:
+
+Module contents
+---------------
+
+.. automodule:: superfaktura.utils
+   :members:
+   :undoc-members:
+   :show-inheritance:

superfaktura/bank_account.py

@@ -1,3 +1,36 @@
+"""
+Bank Account Module.
+
+This module provides classes and functions for working with bank accounts in the SuperFaktura API.
+It allows for retrieving, creating, updating, and deleting bank accounts.
+
+Classes:
+    - BankAccountModel: Dataclass representing a bank account.
+    - BankAccount: Class for interacting with bank accounts.
+
+Exceptions:
+    - NoDefaultBankAccountException: Exception for when no default bank account is found.
+
+Functions:
+    - (none)
+
+Usage:
+    import superfaktura.bank_account
+
+    # Create an instance of BankAccount
+    bank = superfaktura.bank_account.BankAccount()
+
+    # Retrieve a list of bank accounts
+    accounts = bank.list()
+
+    # Get the default bank account
+    default_account = bank.default()
+
+    # Create or update a bank account
+    data = {"account": "1234567890", "bank_code": "1234567890", "default": True}
+    bank.post(data)
+"""
+
 from dataclasses import dataclass, asdict
 from typing import Optional
 
@@ -5,11 +38,13 @@ from superfaktura.superfaktura_api import SuperFakturaAPI
 
 
 class NoDefaultBankAccountException(Exception):
-    pass
+    """Exception for when no default bank account is found."""
 
 
 @dataclass
 class BankAccountModel:
+    """Dataclass representing a bank account."""
+
     account: Optional[str]
     bank_code: Optional[str]
     bank_name: Optional[str]
@@ -20,6 +55,7 @@ class BankAccountModel:
     id: Optional[int]
 
     def as_dict(self) -> dict:
+        """Returns a dictionary representation of the BankAccountModel."""
         data = asdict(self)
         for key in list(data.keys()):
             if data[key] is None:
@@ -28,24 +64,42 @@ class BankAccountModel:
 
     @staticmethod
     def from_dict(data: dict) -> "BankAccountModel":
+        """Creates a BankAccountModel from a dictionary."""
         return BankAccountModel(
-            **{
-                k: v
-                for k, v in data.items()
-                if k in BankAccountModel.__dataclass_fields__
-            }
+            **{k: v for k, v in data.items() if k in BankAccountModel.__annotations__}
         )
 
 
 class BankAccount(SuperFakturaAPI):
+    """
+    Bank Account Class.
+
+    This class provides methods for interacting with bank accounts in the SuperFaktura API.
+    It allows for retrieving, creating, updating, and deleting bank accounts.
+
+    Methods:
+        - list: Retrieves a list of bank accounts.
+        - default: Retrieves the default bank account.
+        - post: Creates or updates a bank account.
+
+    Usage:
+        bank = BankAccount()
+        accounts = bank.list()
+        default_account = bank.default()
+        data = {"account": "1234567890", "bank_code": "1234567890", "default": True}
+        bank.post(data)
+    """
+
     def __init__(self):
         super().__init__()
 
     def list(self) -> dict:
+        """Retrieves a list of bank accounts."""
         url = "bank_accounts/index"
         return self.get(url)
 
     def default(self) -> Optional[BankAccountModel]:
+        """Retrieves the default bank account."""
         accounts = self.list()["BankAccounts"]
         for account in accounts:
             if account["BankAccount"]["default"]:

superfaktura/client_contacts.py

@@ -1,3 +1,24 @@
+"""
+Module for interacting with client contacts in SuperFaktura.
+
+This module provides classes and functions for working with client contacts,
+including creating, reading, and updating contact information.
+
+Classes:
+    ClientException: Base class for client exceptions.
+    ClientContactModel: Dataclass representing a client contact.
+
+Functions:
+    (none)
+
+Variables:
+    (none)
+
+Notes:
+    This module uses the SuperFaktura API to interact with client contacts.
+    You must have a valid API key and credentials to use this module.
+"""
+
 import dataclasses
 import json
 from pprint import pprint
@@ -7,11 +28,13 @@ from superfaktura.superfaktura_api import SuperFakturaAPI
 
 
 class ClientException(Exception):
-    pass
+    """Base class for client exceptions."""
 
 
 @dataclasses.dataclass
 class ClientContactModel:
+    """Client contact model."""
+
     name: str
     address: Optional[str] = None
     bank_account: Optional[str] = None
@@ -48,6 +71,7 @@ class ClientContactModel:
     id: Optional[int] = None
 
     def as_dict(self) -> dict:
+        """Returns a dictionary representation of the ClientContactModel."""
         data = dataclasses.asdict(self)
         for key in list(data.keys()):
             if data[key] is None:
@@ -56,32 +80,34 @@ class ClientContactModel:
 
     @staticmethod
     def from_dict(data: dict) -> "ClientContactModel":
+        """Creates a ClientContactModel from a dictionary."""
         return ClientContactModel(
-            **{
-                k: v
-                for k, v in data.items()
-                if k in ClientContactModel.__dataclass_fields__
-            }
+            **{k: v for k, v in data.items() if k in ClientContactModel.__annotations__}
         )
 
 
 class ClientContact(SuperFakturaAPI):
+    """Client contact class."""
+
     def __init__(self):
         super().__init__()
 
     def add_contact(self, contact: ClientContactModel) -> bool:
+        """Adds a new client contact."""
         url = "clients/create"
         data = {"Client": contact.as_dict()}
-        resp = self.post(endpoint=url, data=json.dumps(data))
-        if resp["error_message"] == "Client created":
+        response = self.post(endpoint=url, data=json.dumps(data))
+        if response["error_message"] == "Client created":
             return True
         return False
 
     def list(self) -> dict:
+        """Lists all exists client contacts."""
         url = "clients/index.json"
         return self.get(endpoint=url)
 
     def get_client(self, client_id: int) -> ClientContactModel:
+        """Gets a client contact by ID."""
         url = f"clients/view/{client_id}"
         data = self.get(endpoint=url)
         if "Client" not in data:

superfaktura/enumerations/currency.py

@@ -1,3 +1,30 @@
+"""
+Currency Enumeration.
+
+This module provides an enumeration of currencies that can be used in the SuperFaktura API.
+
+Classes:
+    - Currencies: Enumeration of currencies.
+
+Usage:
+    from superfaktura.enumerations.currency import Currencies
+    currency = Currencies.CZK
+"""
+
+
 class Currencies:
+    """
+    Currency Enumeration.
+
+    This enumeration represents the different currencies that can be used in the SuperFaktura API.
+
+    Values:
+        - CZK: Czech Koruna
+        - EUR: Euro
+
+    Usage:
+        currency = Currencies.CZK
+    """
+
     CZK = "CZK"
     EUR = "EUR"

superfaktura/invoice.py

@@ -1,3 +1,57 @@
+"""
+Invoice Module.
+
+This module provides classes and functions for working with invoices in the SuperFaktura API.
+It allows for retrieving, creating, updating, and deleting invoices.
+
+Classes:
+    - InvoiceModel: Dataclass representing an invoice.
+    - InvoiceItem: Dataclass representing an invoice item.
+    - Invoice: Class for interacting with invoices.
+
+Exceptions:
+    - NoDefaultBankAccountException: Exception for when no default bank account is found.
+
+Functions:
+    - (none)
+
+Usage:
+    import superfaktura.invoice
+
+    # Create an instance of Invoice
+    invoice = superfaktura.invoice.Invoice()
+
+    # Create an invoice
+    invoice.add(
+        invoice=superfaktura.invoice.InvoiceModel(
+            type=superfaktura.invoice.InvoiceType.PROFORMA,
+            name="Invoice 3",
+            due=superfaktura.invoice.Date("2025-02-01"),
+            invoice_currency=superfaktura.invoice.Currencies.CZK,
+            header_comment="We invoice you for services",
+            bank_accounts=[bank.default().as_dict()],
+        ),
+        items=[
+            superfaktura.invoice.InvoiceItem(name="Services", unit_price=100, quantity=1,
+                                            unit="ks", tax=21),
+            superfaktura.invoice.InvoiceItem(name="SIM card", unit_price=50, quantity=1,
+                                            tax=21, unit="ks"),
+            superfaktura.invoice.InvoiceItem(
+                name="SIM card 2", unit_price=75, quantity=1, tax=21, unit="ks"
+            ),
+        ],
+        contact=superfaktura.client_contacts.ClientContactModel(
+            name="Richard Kubíček",
+            email="kubicekr@eledio.com",
+            phone="+420 123 456 789",
+            address="Jaroslava Foglara 861/1",
+            ico="123",
+            update=True,
+            country_id=57,
+        ),
+    )
+"""
+
 from dataclasses import dataclass, asdict
 from typing import Optional, List
 import json
@@ -11,6 +65,8 @@ from superfaktura.utils.data_types import Date, DateEncoder
 
 @dataclass
 class InvoiceModel:
+    """This dataclass represents an invoice in the SuperFaktura API."""
+
     add_rounding_item: Optional[int] = 0
     already_paid: Optional[int] = None
     bank_accounts: Optional[List[dict]] = None
@@ -51,6 +107,7 @@ class InvoiceModel:
     vat_transfer: Optional[int] = None
 
     def as_dict(self) -> dict:
+        """Returns a dictionary representation of the InvoiceModel."""
         data = asdict(self)
         for key in list(data.keys()):
             if data[key] is None:
@@ -66,6 +123,8 @@ class InvoiceModel:
 
 @dataclass
 class InvoiceItem:
+    """This dataclass represents an invoice item in the SuperFaktura API."""
+
     name: str
     unit_price: float
     description: Optional[str] = None
@@ -80,6 +139,7 @@ class InvoiceItem:
     use_document_currency: Optional[int] = 0
 
     def as_dict(self) -> dict:
+        """Returns a dictionary representation of the InvoiceItem."""
         data = asdict(self)
         for key in list(data.keys()):
             if data[key] is None:
@@ -88,22 +148,74 @@ class InvoiceItem:
 
 
 class InvoiceType:
+    """ "
+    Invoice Type Enumeration.
+
+    This enumeration represents the different types of invoices that can be created.
+
+    Usage:
+        invoice_type = InvoiceType.PROFORMA
+    """
+
     PROFORMA = "proforma"
     INVOICE = "regular"
 
 
 class Invoice(SuperFakturaAPI):
+    """
+    Invoice Class.
+
+    This class provides methods for interacting with invoices in the SuperFaktura API.
+    It allows for retrieving, creating, updating, and deleting invoices.
+
+    Methods:
+        - add: Creates a new invoice.
+        - get: Retrieves an invoice by ID.
+        - list: Retrieves a list of invoices.
+        - update: Updates an existing invoice.
+
+    Usage:
+        invoice = Invoice()
+        invoice.add(
+            invoice=InvoiceModel(
+                type=InvoiceType.PROFORMA,
+                name="Invoice 3",
+                due=Date("2025-02-01"),
+                invoice_currency=Currencies.CZK,
+                header_comment="We invoice you for services",
+                bank_accounts=[bank.default().as_dict()],
+            ),
+            items=[
+                InvoiceItem(name="Services", unit_price=100, quantity=1, unit="ks", tax=21),
+                InvoiceItem(name="SIM card", unit_price=50, quantity=1, tax=21, unit="ks"),
+                InvoiceItem(
+                    name="SIM card 2", unit_price=75, quantity=1, tax=21, unit="ks"
+                ),
+            ],
+            contact=ClientContactModel(
+                name="Richard Kubíček",
+                email="kubicekr@eledio.com",
+                phone="+420 123 456 789",
+                address="Jaroslava Foglara 861/1",
+                ico="123",
+                update=True,
+                country_id=57,
+            ),
+        )
+    """
+
     def __init__(self):
         super().__init__()
 
     def add(
         self,
-        invoice: InvoiceModel,
+        invoice_model: InvoiceModel,
         items: List[InvoiceItem],
         contact: ClientContactModel,
     ):
+        """Creates a new invoice."""
         data = {
-            "Invoice": invoice.as_dict(),
+            "Invoice": invoice_model.as_dict(),
             "InvoiceItem": [item.as_dict() for item in items],
             "Client": contact.as_dict(),
         }
@@ -116,7 +228,7 @@ if __name__ == "__main__":
     invoice = Invoice()
     bank = BankAccount()
     invoice.add(
-        invoice=InvoiceModel(
+        invoice_model=InvoiceModel(
             type=InvoiceType.PROFORMA,
             name="Invoice 3",
             due=Date("2025-02-01"),

superfaktura/superfaktura_api.py

@@ -1,18 +1,49 @@
+"""
+SuperFaktura API Client.
+
+This module provides classes and functions for working with the SuperFaktura API.
+It allows for reading, creating, updating, and deleting data in SuperFaktura.
+
+Classes:
+    - SuperFakturaAPI: The base class for working with the SuperFaktura API.
+    - SuperFakturaAPIException: An exception for errors when working with the SuperFaktura API.
+    - SuperFakturaAPIMissingCredentialsException: An exception for missing login credentials.
+
+Functions:
+    - get: Retrieves data from the SuperFaktura API.
+    - post: Creates or updates data in the SuperFaktura API.
+
+Usage:
+    import superfaktura.superfaktura_api
+
+    # Create an instance of SuperFakturaAPI
+    api = superfaktura.superfaktura_api.SuperFakturaAPI()
+
+    # Retrieve data from the SuperFaktura API
+    data = api.get('endpoint')
+
+    # Create or update data in the SuperFaktura API
+    api.post('endpoint', data)
+"""
+
+import os
 from typing import Dict
 
 import requests
-import os
 from dotenv import load_dotenv  # type: ignore
 
 
 class SuperFakturaAPIException(Exception):
-    pass
+    """Exception for errors when working with the SuperFaktura API."""
+
 
 class SuperFakturaAPIMissingCredentialsException(Exception):
-    pass
+    """Exception for missing login credentials."""
 
 
 class SuperFakturaAPI:
+    """Base class for working with the SuperFaktura API."""
+
     def __init__(self) -> None:
         load_dotenv()
         _api_key = os.getenv("SUPERFAKTURA_API_KEY")
@@ -20,28 +51,85 @@ class SuperFakturaAPI:
         _api_mail = os.getenv("SUPERFAKTURA_API_EMAIL")
         _api_company_id = os.getenv("SUPERFAKTURA_API_COMPANY_ID")
         if not _api_key or not self._api_url or not _api_mail or not _api_company_id:
-            raise SuperFakturaAPIMissingCredentialsException('Please ensure, that necessary credentials are set. Please see README.md')
+            raise SuperFakturaAPIMissingCredentialsException(
+                "Please ensure, that necessary "
+                "credentials are set. Please see"
+                " README.md"
+            )
 
         self._auth_header = {
-            "Authorization": f"SFAPI email={_api_mail}&apikey={_api_key}&company_id={_api_company_id}"
+            "Authorization": f"SFAPI email={_api_mail}&apikey={_api_key}&company_id="
+            f"{_api_company_id}"
         }
 
-    def get(self, endpoint: str) -> Dict:
-        url = f"{self._api_url}/{endpoint}"
-        req = requests.get(url=url, headers=self._auth_header)
-        if req.status_code == 200:
-            return req.json()
-        else:
-            raise SuperFakturaAPIException(
-                f"Get status code: {req.status_code}; {req.json()}"
-            )
+    def get(self, endpoint: str, timeout: int = 5) -> Dict:
+        """
+        Retrieves data from the SuperFaktura API.
 
-    def post(self, endpoint: str, data: str) -> Dict:
+        Retrieves data from the specified endpoint in the SuperFaktura API.
+
+        Args:
+            endpoint (str): The API endpoint to retrieve data from (e.g. 'invoices', 'clients',
+                            etc.).
+            timeout (int, optional): The timeout for the API request in seconds. Defaults to 5.
+
+        Returns:
+            Dict: The retrieved data in JSON format.
+
+        Raises:
+            SuperFakturaAPIException: If the API request fails or returns an error.
+
+        Examples:
+            >>> api = SuperFakturaAPI()
+            >>> data = api.get('invoices')
+            >>> print(data)
+
+        Notes:
+            The available endpoints can be found in the SuperFaktura API documentation.
+        """
         url = f"{self._api_url}/{endpoint}"
-        req = requests.post(url=url, headers=self._auth_header, data={"data": data})
+        req = requests.get(url=url, headers=self._auth_header, timeout=timeout)
         if req.status_code == 200:
             return req.json()
-        else:
-            raise SuperFakturaAPIException(
-                f"Post status code: {req.status_code}; {req.json()}"
-            )
+        raise SuperFakturaAPIException(
+            f"Get status code: {req.status_code}; {req.json()}"
+        )
+
+    def post(self, endpoint: str, data: str, timeout: int = 5) -> Dict:
+        """
+        Creates or updates data in the SuperFaktura API.
+
+        Creates or updates data in the specified endpoint in the SuperFaktura API.
+
+        Args:
+            endpoint (str): The API endpoint to create or update data in (e.g. 'invoices',
+                            'clients', etc.).
+            data (str): The data to be created or updated in JSON format.
+            timeout (int, optional): The timeout for the API request in seconds. Defaults
+                                    to 5.
+
+        Returns:
+            Dict: The created or updated data in JSON format.
+
+        Raises:
+            SuperFakturaAPIException: If the API request fails or returns an error.
+
+        Examples:
+            >>> api = SuperFakturaAPI()
+            >>> data = '{"name": "Example Invoice", "amount": 100.0}'
+            >>> response = api.post('invoices', data)
+            >>> print(response)
+
+        Notes:
+            The available endpoints can be found in the SuperFaktura API documentation.
+            The data should be a valid JSON string.
+        """
+        url = f"{self._api_url}/{endpoint}"
+        req = requests.post(
+            url=url, headers=self._auth_header, data={"data": data}, timeout=timeout
+        )
+        if req.status_code == 200:
+            return req.json()
+        raise SuperFakturaAPIException(
+            f"Post status code: {req.status_code}; {req.json()}"
+        )

superfaktura/utils/country.py

@@ -1,12 +1,33 @@
-from pprint import pprint
+"""
+Country Module.
+
+This module provides utilities for working with countries in the SuperFaktura API.
+
+Functions:
+    - country_list: Retrieves a list of countries.
+
+Usage:
+    from superfaktura.utils.country import country_list
+    countries = country_list()
+    print(countries)
+"""
 
 from superfaktura.superfaktura_api import SuperFakturaAPI
 
 
 def country_list():
+    """
+    Retrieves a list of countries.
+
+    This function returns a list of countries that can be used in the SuperFaktura API.
+
+    Returns:
+        - list: A list of countries.
+
+    Usage:
+        countries = country_list()
+        print(countries)
+    """
     api = SuperFakturaAPI()
     url = "countries"
     return api.get(url)
-
-
-pprint(country_list())

superfaktura/utils/data_types.py

@@ -1,3 +1,22 @@
+"""
+Data Types Module.
+
+This module provides data types and utilities for working with dates and other data types
+in the SuperFaktura API.
+
+Classes:
+    - Date: Represents a date in the format YYYY-MM-DD.
+    - DateTime: Represents a date and time in the format YYYY-MM-DD HH:MM:SS.
+
+Functions:
+    - (none)
+
+Usage:
+    from superfaktura.utils.data_types import Date, DateTime
+    date = Date("2022-01-01")
+    datetime = DateTime("2022-01-01 12:00:00")
+"""
+
 from datetime import datetime
 from typing import Optional
 
@@ -5,6 +24,22 @@ import json
 
 
 class Date:
+    """
+    Date Class.
+
+    This class represents a date in the format YYYY-MM-DD.
+
+    Attributes:
+        - date (str): The date in the format YYYY-MM-DD.
+
+    Methods:
+        - __str__: Returns the date as a string.
+
+    Usage:
+        date = Date("2022-01-01")
+        print(date)  # Output: 2022-01-01
+    """
+
     def __init__(self, date_str: Optional[str] = None):
         """
         Creates a Date instance that supports typing and validation for the format YYYY-MM-DD.
@@ -25,8 +60,10 @@ class Date:
         """
         try:
             return datetime.strptime(date_str, "%Y-%m-%d")
-        except ValueError:
-            raise ValueError(f"Date must be in format YYYY-MM-DD, got: {date_str}")
+        except ValueError as exc:
+            raise ValueError(
+                f"Date must be in format YYYY-MM-DD, got: {date_str}"
+            ) from exc
 
     def __str__(self) -> str:
         """
@@ -56,6 +93,20 @@ class Date:
 
 
 class DateEncoder(json.JSONEncoder):
+    """
+    Date Encoder Class.
+
+    This class is a custom JSON encoder that converts Date objects to strings.
+
+    Methods:
+        - default: Encodes a Date object as a string.
+
+    Usage:
+        encoder = DateEncoder()
+        date = Date("2022-01-01")
+        json_string = json.dumps(date, cls=encoder)
+    """
+
     def default(self, o):
         if isinstance(o, Date):
             return o.to_json()