#!/bin/bash
# 本地執行 linter 的腳本

echo "Running clang-tidy on C++ files..."

# 檢查 clang-tidy 是否存在
if ! command -v clang-tidy &> /dev/null; then
    echo "clang-tidy not found. Please install it first."
    echo "Ubuntu/Debian: sudo apt install clang-tidy"
    echo "macOS: brew install llvm"
    exit 1
fi

# 尋找所有 C++ 檔案
CPP_FILES=$(find src tests -type f \( -name "*.cpp" -o -name "*.cxx" -o -name "*.cc" -o -name "*.c++" -o -name "*.h" -o -name "*.hpp" -o -name "*.hxx" \) 2>/dev/null)

if [ -z "$CPP_FILES" ]; then
    echo "No C++ files found."
    exit 0
fi

echo "Found files:"
echo "$CPP_FILES"
echo

# 若存在 compile_commands.json，則使用 -p 指向 build 目錄以提高精準度
TIDY_CMD_BASE=(clang-tidy --config-file=.clang-tidy)
if [ -f "build/compile_commands.json" ]; then
    echo "Detected build/compile_commands.json; using -p build"
    TIDY_CMD_BASE+=( -p build )
else
    echo "No compile_commands.json detected. For better results, run:"
    echo "  mkdir -p build && cd build && cmake .. -DCMAKE_EXPORT_COMPILE_COMMANDS=ON && cd -"
fi

# 執行 clang-tidy（保持 Phase 1：僅回報，不讓流程失敗）
echo "$CPP_FILES" | xargs -r "${TIDY_CMD_BASE[@]}"

echo "Linter check completed."