flake 8 integration

Jenkinsfile

@@ -5,7 +5,7 @@ pipeline {
             steps {
                 sh 'python -m venv .venv'
                 sh """. .venv/bin/activate 
-                    pip install pytest twine mypy
+                    pip install pytest twine mypy flake8 mccabe lake8-junit-repor
                     pip install -e ."""
             }
         }
@@ -16,10 +16,19 @@ pipeline {
                    """
             }
         }
+        stage('flake8') {
+            steps {
+                sh """. .venv/bin/activate
+                    flake8 --max-complexity 7 --output-file flake8_results.txt darwc
+                    flake8_junit flake8_results.txt test_flake8.xml
+                    rm flake8_results.txt
+                   """
+            }
+        }
         stage('mypy') {
             steps {
                 sh """. .venv/bin/activate
-                    mypy --junit-xml=test_mpy.xml darwcss/
+                    mypy --junit-xml=test_mypy.xml darwcss/
                    """
             }
         }

darwcss/darwcss.py

 from __future__ import annotations
 from contextlib import contextmanager
 from dataclasses import dataclass, field
-from typing import List, Any, Union, Optional, Generator, Dict
+from typing import List, Any, Union, Optional, Generator, Dict, Tuple
 from inspect import currentframe
 from textwrap import indent
-from colorsys import rgb_to_hls, rgb_to_hsv, rgb_to_yiq
+from colorsys import rgb_to_hls
+from enum import Enum
 
 
 def render(obj: Any) -> str:
@@ -20,26 +21,41 @@ class RenderableObject:
     def __render__(self) -> str:
         pass
 
-    def __add__(self, other: RenderableObject) -> str:
+    def __add__(self, other: RenderableObject) -> str:  # noqa:F821 https://github.com/PyCQA/pyflakes/issues/373
         return f"{render(self)} {render(other)}"
 
-    def __radd__(self, other: RenderableObject) -> str:
+    def __radd__(self, other: RenderableObject) -> str:  # noqa:F821
         return f"{render(other)} {render(self)}"
 
 
+class ColorTypes(Enum):
+    RGB = 0
+    HLS = 1
+    HEX = 2
+
+
 @dataclass
 class ColorValue(RenderableObject):
     red: int
     green: int
     blue: int
-    typ: str = "rgb"
+    typ: ColorTypes = ColorTypes.RGB
 
     def __render__(self) -> str:
-        return (
-            f"rgb({self.red}, {self.green}, {self.blue})"
-            if self.typ == "rgb"
-            else f"#{self.red}{self.green}{self.blue}"
-        )
+        if self.typ is ColorTypes.RGB:
+            return f"rgb({self.red}, {self.green}, {self.blue})"
+        elif self.typ is ColorTypes.HLS:
+            return f"hls({self.red}, {self.green}%, {self.blue}%)"
+        elif self.typ is ColorTypes.HEX:
+            return f"#{self.red}{self.green}{self.blue}"
+        else:
+            raise ValueError("ColorValue type must be a valid ColorTypes attribute")
+
+    def to_hls(self) -> Union[Tuple[float, float, float], NotImplemented]:
+        if self.typ is ColorTypes.RGB:
+            return rgb_to_hls(self.red, self.green, self.blue)
+        else:
+            return NotImplemented
 
 
 @dataclass
@@ -81,7 +97,7 @@ class Selector:
     def __add__(self, other: Style) -> None:
         self.styles.append(other)
 
-    def __iadd__(self, other: Style) -> Selector:
+    def __iadd__(self, other: Style) -> Selector: # noqa:F821
         self + other
         return self