From b3f1e4823ea01fe6ba612994e12f743136f7ef52 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Corentin=20S=C3=A9chet?= <csechet@entrouvert.com>
Date: Tue, 12 Apr 2022 11:42:20 +0200
Subject: [PATCH] css: remove css commands for now

---
 frontools/cli.py |  15 ------
 frontools/css.py | 117 -----------------------------------------------
 2 files changed, 132 deletions(-)
 delete mode 100644 frontools/css.py

diff --git a/frontools/cli.py b/frontools/cli.py
index 8100795..1dc34f6 100644
--- a/frontools/cli.py
+++ b/frontools/cli.py
@@ -10,7 +10,6 @@ from click import argument, group, option, pass_context, pass_obj
 
 from frontools.cache import FileCache
 from frontools.config import Config
-from frontools.css import css_diff
 from frontools.screenshot import screenshot_diff
 
 
@@ -96,20 +95,6 @@ def prune_caches(cache_names: list[str]) -> None:
     FileCache.prune(cache_names)
 
 
-@main.command(name="css-diff")
-@argument("right_source", type=str)
-@pass_obj
-@_async_command
-async def css_diff_cli(config: Config, right_source: str) -> None:
-    """Diff CSS"""
-    for _, url in config.urls:
-        await css_diff(
-            url,
-            config.source,
-            config.get_source(right_source),
-        )
-
-
 @main.command(name="screenshot-diff")
 @argument("source", type=str)
 @option("-o", "--output-directory", type=PathArgument(), default=None)
diff --git a/frontools/css.py b/frontools/css.py
deleted file mode 100644
index c1c2ce5..0000000
--- a/frontools/css.py
+++ /dev/null
@@ -1,117 +0,0 @@
-"""Css related functions"""
-from enum import Enum
-from typing import AsyncIterable, Iterator
-from urllib.parse import urljoin
-
-from bs4 import BeautifulSoup
-from tinycss2 import parse_stylesheet
-from tinycss2.ast import (
-    IdentToken,
-    LiteralToken,
-    Node,
-    SquareBracketsBlock,
-    WhitespaceToken,
-)
-from tinycss2.parser import QualifiedRule
-
-from frontools.sources import Source
-
-
-async def css_diff(url: str, left_source: Source, right_source: Source) -> None:
-    """Print different stylesheets in the given url"""
-    async for css_url in _get_stylesheets(url, left_source):
-        if css_url is None:
-            continue
-
-        left_stylesheet_content = await left_source.get_url(css_url)
-        assert left_stylesheet_content is not None
-
-        right_stylesheet_content = await right_source.get_url(urljoin(url, css_url))
-        assert right_stylesheet_content is not None
-
-        left_sheet = parse_stylesheet(
-            left_stylesheet_content.decode("utf-8"), True, True
-        )
-        right_sheet = parse_stylesheet(
-            right_stylesheet_content.decode("utf-8"), True, True
-        )
-
-        left_selector_index = _get_selector_index(left_sheet)
-        right_selector_index = _get_selector_index(right_sheet)
-
-        for selector, rule in left_selector_index.items():
-            if selector not in right_selector_index:
-                print(rule)
-
-
-def _get_selector_index(rule_list: list[QualifiedRule]) -> dict[str, QualifiedRule]:
-    result: dict[str, QualifiedRule] = {}
-    for rule in rule_list:
-        selector = _parse_selector(iter(rule.prelude))
-        print(selector)
-
-    return result
-
-
-class Combinator(Enum):
-    CHILD = 0
-    DIRECT_CHILD = 1
-    ADJACENT_SIBLING = 2
-    GENERAL_SIBLING = 3
-
-
-class Selector:
-    def __init__(self) -> None:
-        self._classes: set[str] = set()
-        self._combined = dict[Combinator, "Selector"]
-
-
-def _parse_selector(token_iterator: Iterator[Node]) -> Selector:
-    try:
-        classes: set[str] = set()
-        child_selectors: dict[Combinator, Selector] = {}
-        token = next(token_iterator)
-        tag = ""
-        attributes: dict[str, str] = {}
-        while True:
-            while isinstance(token, WhitespaceToken):
-                token = next(token_iterator)
-            if isinstance(token, LiteralToken):
-                if token.value == ".":
-                    while True:
-                        token = next(token_iterator)
-                        assert isinstance(token, IdentToken)
-                        classes.add(token.value)
-                        token = next(token_iterator)
-
-                        if not isinstance(token, LiteralToken) or token.value != ".":
-                            break
-                else:
-                    combinator_mappings = {
-                        "+": Combinator.ADJACENT_SIBLING,
-                        ">": Combinator.DIRECT_CHILD,
-                        "~": Combinator.GENERAL_SIBLING,
-                    }
-                    if token.value in combinator_mappings:
-                        combinator = combinator_mappings[token.value]
-                        child_selectors[combinator] = _parse_selector(token_iterator)
-            elif isinstance(token, IdentToken):
-                tag = token.value
-                token = next(token_iterator)
-            elif isinstance(token, SquareBracketsBlock):
-                # parse attributes
-                token = next(token_iterator)
-    except StopIteration:
-        pass
-
-    return Selector()
-
-
-async def _get_stylesheets(url: str, source: Source) -> AsyncIterable[str]:
-    page = await source.get_url(url)
-    page_html = BeautifulSoup(page, features="html5lib")
-    links = page_html.find_all("link")
-    for link in links:
-        if "stylesheet" not in link.get("rel", []):
-            continue
-        yield urljoin(url, link["href"])