/// <summary>
/// EF Core 的数据库操作拦截器，用于在数据库操作过程中进行日志记录和监视。
/// </summary>
/// <remarks>
/// 作者：我只吃饭不洗碗
/// 创建日期：2024年1月29日
/// </remarks>
public class LoggingInterceptor : DbCommandInterceptor
{
    /// <summary>
    /// 在执行查询命令之前拦截并输出日志。
    /// </summary>
    /// <param name="command">要执行的查询命令。</param>
    /// <param name="eventData">命令事件数据。</param>
    /// <param name="result">拦截结果。</param>
    /// <returns>拦截结果。</returns>
    public override InterceptionResult<DbDataReader> ReaderExecuting(DbCommand command, CommandEventData eventData, InterceptionResult<DbDataReader> result)
    {
        var fullCommandText = command.CommandText;

        foreach (DbParameter param in command.Parameters)
        {
            var paramValue = param.Value is string ? $"'{param.Value}'" : param.Value.ToString();
            fullCommandText = fullCommandText.Replace(param.ParameterName, paramValue);
        }
        Console.WriteLine($"Executing query: {fullCommandText}");
        return base.ReaderExecuting(command, eventData, result);
    }

    /// <summary>
    /// 在执行非查询命令之前拦截并输出日志。
    /// </summary>
    /// <param name="command">要执行的非查询命令。</param>
    /// <param name="eventData">命令事件数据。</param>
    /// <param name="result">拦截结果。</param>
    /// <returns>拦截结果。</returns>
    public override InterceptionResult<int> NonQueryExecuting(DbCommand command, CommandEventData eventData, InterceptionResult<int> result)
    {
        var fullCommandText = command.CommandText;

        foreach (DbParameter param in command.Parameters)
        {
            var paramValue = param.Value is string ? $"'{param.Value}'" : param.Value.ToString();
            fullCommandText = fullCommandText.Replace(param.ParameterName, paramValue);
        }
        Console.WriteLine($"Executing non-query command: {fullCommandText}");
        return base.NonQueryExecuting(command, eventData, result);
    }

    /// <summary>
    /// 在执行标量查询命令之前拦截并输出日志。
    /// </summary>
    /// <param name="command">要执行的标量查询命令。</param>
    /// <param name="eventData">命令事件数据。</param>
    /// <param name="result">拦截结果。</param>
    /// <returns>拦截结果。</returns>
    public override InterceptionResult<object> ScalarExecuting(DbCommand command, CommandEventData eventData, InterceptionResult<object> result)
    {

        var fullCommandText = command.CommandText;

        foreach (DbParameter param in command.Parameters)
        {
            var paramValue = param.Value is string ? $"'{param.Value}'" : param.Value.ToString();
            fullCommandText = fullCommandText.Replace(param.ParameterName, paramValue);
        }
        Console.WriteLine($"Executing scalar query: {fullCommandText}");
        return base.ScalarExecuting(command, eventData, result);
    }
}