using System;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Serilog;
using LCU.Library.Internal.Exceptions;
using LCU.Api.Internal.FileOperations.Services.ExcelServices;
using LCU.Library.Internal.FileOperationsModels.Models.ExcelModels.Requests;
using LCU.Library.Internal.FileOperationsModels.Models.ExcelModels.Responses;
using LCU.Api.Internal.FileOperations.Extensions;
namespace LCU.Api.Internal.FileOperations.Controllers;

[ApiController]
[Route("api/[controller]")]
public class ExcelController : ControllerBase
{
    private readonly IExcelService _excelService;

    public ExcelController(IExcelService excelService)
    {
        _excelService = excelService;
    }

    /// <remarks>
    /// This endpoint is a direct file operations call to extract excel workbook data. The ExcelDataRequest contains 
    /// the file content in a base64 encoded string for an excel sheet and it will extract all data into a json object.
    /// The request also has optional SheetRequests in which a SheetName and specific Rows and Columns can be selected.
    /// 
    /// Notes: 
    /// - FileContent is required.
    /// - SheetRequests are optional.
    ///     - If SheetRequests are added the SheetName is required.
    ///     - The SheetRequest's Rows and Columns are optional.
    /// </remarks>
    /// <param name="request"></param>
    /// <returns>ExcelDataResponse</returns>
    [HttpPost("ExtractExcelWorkBookData")]
    [ProducesResponseType(200)]
    [ProducesResponseType(typeof(ExcelDataResponse), 400)]
    [ProducesResponseType(500)]
    public IActionResult ExtractExcelWorkBookData([FromBody] ExcelDataRequest request)
    {
        try
        {
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState.GetErrorMessages());
            }

            var requestResponse = _excelService.ExtractExcelWorkBookData(request);
            return Ok(requestResponse);
        }
        catch (ServiceException exception)
        {
            return StatusCode(StatusCodes.Status500InternalServerError, exception.Message);
        }
        catch (Exception exception)
        {
            Log.Error(exception, "Unexpected Exception");
            return StatusCode(StatusCodes.Status500InternalServerError);
        }
    }
}