using Google.Apis.Auth;
using Google.Apis.Http;
using Google.Apis.Sheets.v4;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Identity.Client.Platforms.Features.DesktopOs.Kerberos;
using Microsoft.IdentityModel.Tokens;
using System;
using System.Configuration;
using System.IdentityModel.Tokens.Jwt;
using System.Security.Claims;
using System.Text;
using WebAPI.dataParsers;
using WebAPI.Exports;
using WebAPI.Models;

namespace WebAPI.Controllers
{
    [ApiController]
    [Route("api/[controller]")]
    [Authorize]
    public class LayersController : Controller
    {
        private readonly AppDbContext db;
        private SpreadsheetsResource.ValuesResource googleSheetValues;
        private GoogleDriveHelper googleDriveHelper;
        private readonly IConfiguration configuration;
        public LayersController(
            AppDbContext _db,
            GoogleSheetsHelper _googleSheetsHelper,
            GoogleDriveHelper _googleDriveHelper,
            IConfiguration _configuration)
        {
            db = _db;
            googleSheetValues = _googleSheetsHelper.Service.Spreadsheets.Values;
            googleDriveHelper = _googleDriveHelper;
            configuration = _configuration;
        }

        [HttpGet]
        public IActionResult GetAll()
        {
            try
            {
                return Ok(db.Layers.Where(x => !x.IsDeleted).ToList());
            }
            catch (Exception e)
            {
                return BadRequest(e.ToString());
            }
        }
        [HttpPost]
        public IActionResult Save(Layer input)
        {
            try
            {
                Request.Headers.TryGetValue("userId", out var value);
                Guid currentUserId = new Guid(value!);
                return Ok(AddLayer(input, currentUserId).Id);
            } catch (Exception e)
            {
                return BadRequest(e.ToString());
            }
        }
        [HttpGet]
        [Route("{id}")]
        public IActionResult Get(Guid id)
        {
            try
            {
                return Ok(db.Layers
                    .Include(x => x.CreatedBy)
                    .Include(x => x.Records)
                    .Where(x => x.Id == id && !x.IsDeleted).First());
            }
            catch (Exception e)
            {
                return BadRequest(e.ToString());
            }
        }
        [HttpGet]
        [Route("parseGoogleSheet/{sheetId}")]
        public IActionResult ParseGoogleSheet(string sheetId)
        {

            string sheetName = "KOSZTY";

            Layer layer = new Layer();
            layer.Source = "GoogleSheet";
            layer.Number = db.Layers.Count() + 1;
            var parser = new googleSheetParser(googleSheetValues);
            dynamic parsedSheet = parser.parse(sheetId);
            layer.Records = parsedSheet.records;
            layer.Name = $"W{layer.Number}-I-{sheetName}-{parsedSheet.date}-{DateTime.Now.ToString("yyyyMMddHHmm")}";

            return Ok(layer);
        }
        [HttpPost]
        [DisableRequestSizeLimit]
        [Route("parseFile")]
        public IActionResult ParseFile()
        {
            var parser = new csvParser();
            return Ok(parser.parse(Request.Form.Files[0]));
        }
        [HttpGet]
        [Route("exportToGoogleSheet/{id}")]
        public IActionResult ExportToGoogleSheet(Guid id)
        {
            Layer layer = db.Layers
                    .Include(x => x.Records)
                    .Where(x => x.Id == id && !x.IsDeleted).First();

            var export = new googleSheetExport(googleDriveHelper, googleSheetValues);
            export.export(layer);
            return Ok(true);
        }

        [HttpGet]
        [Route("autoImport/{apiKey}")]
        [AllowAnonymous]
        public IActionResult autoImport(string apiKey)
        {
            if (Request.Host.Value != "localhost:5400" || apiKey != configuration["apiKey"])
            {
                return Unauthorized();
            }
            string sheetId = "1G_Hu8DTP-PSPNXTaVYhc_ppnTQi6HWoA4oXSSdUmM9E";
            string sheetName = "KOSZTY";

            Layer layer = new Layer();
            layer.Source = "GoogleSheet";
            layer.Number = db.Layers.Count() + 1;
            var parser = new googleSheetParser(googleSheetValues);
            dynamic parsedSheet = parser.parse(sheetId);
            layer.Records = parsedSheet.records;
            layer.Name = $"W{layer.Number}-I-{sheetName}-{parsedSheet.date}-{DateTime.Now.ToString("yyyyMMddHHmm")}";
            AddLayer(layer, Guid.Parse("F392209E-123E-4651-A5A4-0B1D6CF9FF9D"));

            return Ok("OK");
        }

        //
        private Layer AddLayer(Layer input, Guid currentUserId)
        {
            input.Number = db.Layers.Count() + 1;
            input.CreatedById = currentUserId;
            input.ModifiedById = currentUserId;
            input.CreatedAt = DateTime.UtcNow;
            input.ModifiedAt = DateTime.UtcNow;

            db.Layers.Add(input);
            SaveRecords(input.Id, input.Records!, currentUserId);
            db.SaveChanges();
            return input;
        }

        private void SaveRecords(Guid id, ICollection<Models.Record> records, Guid currentUserId)
        {
            try
            {
                List<Guid> ids = new List<Guid>();
                foreach (Record record in records)
                {
                    record.CreatedById = currentUserId;
                    record.CreatedAt = DateTime.UtcNow;
                    record.ModifiedById = currentUserId;
                    record.ModifiedAt = DateTime.UtcNow;
                    record.LayerId= id;

                    db.Records.Add(record);
                }
            }
            catch (Exception)
            {
                throw;
            }
        }
    }
}