using System;

namespace ECMJobRunner.Application.Common.Exceptions
{
    /// <summary>
    /// Exception thrown when a DEX job operation fails
    /// </summary>
    public class DEXJobException : Exception
    {
        /// <summary>
        /// Initializes a new instance with an inner exception
        /// </summary>
        /// <param name="queryName">Name of the query that failed</param>
        /// <param name="batchId">Batch ID associated with the operation</param>
        /// <param name="sqlQuery">SQL query that was executed (nullable)</param>
        /// <param name="innerException">The inner exception that caused the failure</param>
        public DEXJobException(string queryName, string batchId, string? sqlQuery, Exception innerException)
            : base(
                $"[SQL Execution Failure] Query '{queryName}' could not be completed for Batch '{batchId}'." + Environment.NewLine +
                "─────────────────────────────────────────" + Environment.NewLine +
                "  Query:" + (sqlQuery is null ? string.Empty : Environment.NewLine + $"    {sqlQuery}") + Environment.NewLine + Environment.NewLine +
                "  Root Cause:" + Environment.NewLine +
                $"    {innerException?.Message}" + Environment.NewLine +
                "─────────────────────────────────────────",
                innerException)
        {
            SqlQuery = sqlQuery;
            BatchId = batchId;
            QueryName = queryName;
        }

        /// <summary>
        /// Initializes a new instance with a reason message
        /// </summary>
        /// <param name="queryName">Name of the query that failed</param>
        /// <param name="batchId">Batch ID associated with the operation</param>
        /// <param name="sqlQuery">SQL query that was executed (nullable)</param>
        /// <param name="reason">Reason for the failure</param>
        public DEXJobException(string queryName, string batchId, string? sqlQuery, string reason)
            : base(
                $"[SQL Execution Failure] Query '{queryName}' could not be completed for Batch '{batchId}'." + Environment.NewLine +
                "─────────────────────────────────────────" + Environment.NewLine +
                "  Query:" + (sqlQuery is null ? string.Empty : Environment.NewLine + $"    {sqlQuery}") + Environment.NewLine + Environment.NewLine +
                "  Reason:" + Environment.NewLine +
                $"    {reason}" + Environment.NewLine +
                "─────────────────────────────────────────")
        {
            SqlQuery = sqlQuery;
            BatchId = batchId;
            QueryName = queryName;
        }

        /// <summary>
        /// Gets the SQL query that failed (if available)
        /// </summary>
        public string? SqlQuery { get; }

        /// <summary>
        /// Gets the batch ID associated with the operation
        /// </summary>
        public string BatchId { get; }

        /// <summary>
        /// Gets the name of the query that failed
        /// </summary>
        public string QueryName { get; }
    }
}