# 颜色定义
RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
BLUE='\033[0;34m'
PURPLE='\033[0;35m'
CYAN='\033[0;36m'
GRAY='\033[0;37m'
NC='\033[0m' # No Color

# 启用调试模式（可选）
DEBUG=${DEBUG:-false}

# 输出函数
print_info() {
    echo -e "${BLUE}[INFO]${NC} $1"
}

print_success() {
    echo -e "${GREEN}[SUCCESS]${NC} $1"
}

print_error() {
    echo -e "${RED}[ERROR]${NC} $1"
}

print_warning() {
    echo -e "${YELLOW}[WARNING]${NC} $1"
}

print_debug() {
    if [ "$DEBUG" = "true" ]; then
        echo -e "${GRAY}[DEBUG]${NC} $1"
    fi
}

print_section() {
    echo -e "${PURPLE}[SECTION]${NC} $1"
}

print_command() {
    echo -e "${CYAN}[COMMAND]${NC} $1"
}

print_section "开始执行Commit Message Hook..."
print_info "时间: $(date)"
print_info "工作目录: $(pwd)"
print_info "用户: $(whoami)"
echo

# 调试信息
print_debug "接收到的参数: $*"
print_debug "参数数量: $#"
print_debug "第一个参数 (提交消息文件): $1"
print_debug "Shell: $SHELL"
print_debug "PATH: $PATH"
print_debug "当前进程ID: $"


# 检查 commitlint 是否可用
print_section "检查 commitlint..."
if npx commitlint --version >/dev/null 2>&1; then
    COMMITLINT_VERSION=$(npx commitlint --version)
    print_success "commitlint 可用: $COMMITLINT_VERSION"
else
    print_error "commitlint 不可用或配置有误"
    exit 1
fi

# 检查提交消息文件
echo
print_section "检查提交消息文件..."
if [ -f "$1" ]; then
    print_success "文件存在: $1"
    FILE_SIZE=$(wc -c < "$1")
    print_info "文件大小: $FILE_SIZE 字节"
    
    print_info "文件内容:"
    echo -e "${CYAN}========================================${NC}"
    cat "$1"
    echo
    echo -e "${CYAN}========================================${NC}"
    
    # 检查文件权限
    FILE_PERMS=$(ls -l "$1" | awk '{print $1}')
    print_debug "文件权限: $FILE_PERMS"
    
    # 检查文件内容是否为空
    if [ "$FILE_SIZE" -eq 0 ] || [ -z "$(tr -d '[:space:]' < "$1")" ]; then
        print_warning "提交消息为空"
    fi
else
    print_error "找不到提交消息文件: $1"
    print_info "当前目录内容:"
    ls -la
    exit 1
fi

# 检查 commitlint 配置
echo
print_section "检查 commitlint 配置..."
if [ -f ".commitlintrc.js" ] || [ -f ".commitlintrc.json" ] || [ -f "commitlint.config.js" ] || [ -f "commitlint.config.mjs" ]; then
    print_success "找到 commitlint 配置文件"
    for config_file in .commitlintrc.js .commitlintrc.json commitlint.config.js; do
        if [ -f "$config_file" ]; then
            print_info "配置文件: $config_file"
            print_debug "$config_file 内容预览:"
            print_debug "$(head -10 "$config_file" 2>/dev/null || echo '无法读取文件')"
            break
        fi
    done
else
    print_warning "未找到 commitlint 配置文件"
    print_info "建议创建 .commitlintrc.js 或 commitlint.config.js/commitlint.config.mjs"
fi

# 运行 commitlint
echo
print_section "执行 commitlint 检查..."
print_command "执行命令: npx commitlint --edit \"$1\""

# 显示详细的执行过程
if [ "$DEBUG" = "true" ]; then
    print_debug "详细执行过程:"
    npx commitlint --edit "$1" --verbose
    RESULT=$?
else
    npx commitlint --edit "$1"
    RESULT=$?
fi

echo
if [ $RESULT -eq 0 ]; then
    print_success "提交消息格式检查通过!"
    print_info "准备提交到 Git 仓库..."
    print_debug "Hook 执行成功，退出代码: 0"
else
    print_error "提交消息格式检查失败! (退出代码: $RESULT)"
    echo
    print_warning "故障排查建议:"
    echo "1. 检查提交消息是否符合约定式提交格式"
    echo "2. 确认 commitlint 配置是否正确"
    echo "3. 运行 'DEBUG=true git commit' 查看详细调试信息"
    echo "4. 手动测试: npx commitlint --edit .git/COMMIT_EDITMSG"
    echo
    print_debug "Hook 执行失败，退出代码: $RESULT"
fi

print_info "Hook 执行完成: $(date)"
exit $RESULT