using System;
using System.Collections.Generic;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Serilog;
using LCU.Library.Internal.FileOperationsModels.Models;
using LCU.Library.Internal.FileOperationsModels.Shared;

namespace LCU.Api.Internal.FileOperations.Controllers
{
    [ApiController]
    [Route("[controller]")]
    public class DynamicFileController : ControllerBase
    {
        /// <summary>Gets a list of files based on regex substitution.</summary>
        /// <remarks>
        /// Example:
        /// POST /api/BuildDynamicFileList
        /// {
        ///     "path": "\\\\172.16.13.17\\Reports\\",
        ///     "filename": "Action_IndirectVehicleLoanSales_date_time.csv",
        ///     "dynamicFileSettings": {
        ///     "regexSettings": [ 
        ///     {
        ///       "tag": "date",
        ///       "regex": "\\d+_\\d+_\\d+"
        ///     },
        ///     {
        ///       "tag": "time",
        ///       "regex": "\\d+"
        ///     }],
        ///     "daysFromToday": 0
        ///    }
        /// }
        /// </remarks>
        /// <param name="dynamicFileListRequest"></param>
        /// <returns></returns>
        // POST api/BuildDynamicFileList
        [HttpPost("BuildDynamicFileList")]
        [ProducesResponseType(201)]
        [ProducesResponseType(typeof(List<string>), 400)]
        [ProducesResponseType(500)]
        public IActionResult BuildDynamicFileList([FromBody] DynamicFileListRequest dynamicFileListRequest)
        {
            try
            {
                var fileNames = RegexNameHandler.BuildFileList(dynamicFileListRequest.Path,
                                                            dynamicFileListRequest.Filename,
                                                            dynamicFileListRequest.DynamicFileSettings);
                return Ok(fileNames);
            }
            catch (Exception ex)
            {
                Log.Error(ex, "Failure Build Dynamic File List");
                return StatusCode(StatusCodes.Status500InternalServerError);
            }
        }
    }
}