#!/bin/sh
# Mechanical checks for the Modified Allman style (code_style_guide.md).
# Only rules grep can verify without false positives are enforced here —
# brace placement and paren spacing stay a review concern. Run via
# `make stylecheck`; CI runs it on every push.
set -u
fail=0
files=$( find src examples tests benches -name '*.rs' )

# 1. Tabs for indentation: no source line may start with a space.
hits=$( grep -nE '^ ' $files /dev/null )
if [ -n "$hits" ]
then
	printf '%s\n' "$hits"
	echo "style: space indentation found — this tree indents with tabs"
	fail=1
fi

# 2. Spaces inside attribute brackets: #[ derive( Clone ) ], #[ test ],
#    #![ deny( … ) ]. Comment lines are skipped so prose may mention raw
#    attribute syntax like `#[doc(hidden)]`.
hits=$( grep -nE '#!?\[[a-zA-Z_]' $files /dev/null | grep -vE '^[^:]+:[0-9]+:[[:space:]]*(///|//!|//)' )
if [ -n "$hits" ]
then
	printf '%s\n' "$hits"
	echo "style: unspaced attribute brackets — write #[ derive( … ) ], #[ test ]"
	fail=1
fi

exit $fail