using Microsoft.AspNetCore.Mvc;
using DevExpress.ExpressApp.Security;
using DevExpress.ExpressApp.Core;
using DurnyklyYol.Module.BusinessObjects;
using Microsoft.AspNetCore.Authorization;
using DevExpress.ExpressApp.WebApi.Services;
using Swashbuckle.AspNetCore.Annotations;
using DevExpress.Data.Filtering;
using DurnyklyYol.Blazor.Server.DTO;

namespace DurnyklyYol.Blazor.Server.Controllers
{
    [ApiController]
    [Route("api/[controller]")]
    public class ClientController : Microsoft.AspNetCore.Mvc.ControllerBase
    {
        private readonly IDataService dataService;
        private readonly ISecurityProvider securityProvider;
        private readonly INonSecuredObjectSpaceFactory _nonSecuredObjectSpaceFactory;
        public ClientController(
            IDataService dataService, 
            ISecurityProvider securityProvider,
            INonSecuredObjectSpaceFactory nonSecuredObjectSpaceFactory
            )
        {
            this.dataService = dataService;
            this.securityProvider = securityProvider;
            this._nonSecuredObjectSpaceFactory = nonSecuredObjectSpaceFactory;
        }
        
        [HttpPost(nameof(Register))]
        [SwaggerOperation("Register account")]
        [ProducesResponseType(StatusCodes.Status200OK, Type = typeof(string) )] // Success response
        [ProducesResponseType(StatusCodes.Status409Conflict, Type = typeof(string))] // Conflict response
        [ProducesResponseType(StatusCodes.Status400BadRequest, Type = typeof(string))]
        [ProducesResponseType(StatusCodes.Status500InternalServerError, Type = typeof(string))]
        public async Task<IActionResult> Register([FromForm] RegisterDto registerDto)
        {
            // Validate input
            if (!ModelState.IsValid)
            {
                return BadRequest(ModelState);
            }
            // Check if dataService is null
            if (dataService == null)
            {
                return StatusCode(500, "Data service is not available");
            }
            using var objectSpace = _nonSecuredObjectSpaceFactory.CreateNonSecuredObjectSpace(typeof(ApplicationUser));
            //var objectSpace = dataService.GetObjectSpace(typeof(ApplicationUser));
            // Check if username already exists

            var existingUser = objectSpace.FindObject<ApplicationUser>(CriteriaOperator.Parse("UserName == ?", registerDto.Username));
            if (existingUser != null)
            {
                return Conflict("Username already exists.");
            }
            
            // Create new user
            var result = objectSpace.CreateObject<Client>();
            result.UserName = registerDto.Username;
            result.FullName = registerDto.Name;
            result.Telefon = registerDto.Phone;
            result.SetPassword(registerDto.Password);

            objectSpace.CommitChanges();
            
            // Create a new UserLoginInfo
            ApplicationUserLoginInfo loginInfo = objectSpace.CreateObject<ApplicationUserLoginInfo>();
            loginInfo.User = result;
            loginInfo.LoginProviderName = "Password";  // Use "Standard" for standard authentication
            loginInfo.ProviderUserKey = result.Oid.ToString();      // Use the username as the provider key
            objectSpace.CommitChanges();
            return Ok("User registered successfully.");
        }
        
        [HttpDelete(nameof(DeleteAccount))]
        [SwaggerOperation("Delete account")]
        [Authorize]
        [ProducesResponseType(StatusCodes.Status204NoContent, Type = typeof(string))] // Success response
        [ProducesResponseType(StatusCodes.Status404NotFound, Type = typeof(string))] // Not found response
        [ProducesResponseType(StatusCodes.Status500InternalServerError, Type = typeof(string))]
        public IActionResult DeleteAccount()
        {
            try
            {
                // Check if securityProvider is null
                if (securityProvider == null)
                {
                    return StatusCode(500, "Security provider is not available");
                }

                // Check if dataService is null
                if (dataService == null)
                {
                    return StatusCode(500, "Data service is not available");
                }

                var objectSpace = dataService.GetObjectSpace<Client>();
                var userID = (Guid)securityProvider.GetSecurity().UserId;
                var strategy = (SecurityStrategy)securityProvider.GetSecurity();
                if (!strategy.CanWrite(typeof(Client)))
                    return Forbid("You do not have permissions to update a client!");

                var user = (Client)strategy.User;
                if (user == null)
                {
                    return NotFound("User not found.");
                }

                var client = objectSpace.GetObject(user);
                if (client == null)
                {
                    return NotFound("Client not found.");
                }

                client.Delete();
                objectSpace.CommitChanges();
                return NoContent();
            }
            catch (Exception ex)
            {
                // Log exception details for debugging
                return StatusCode(500, $"An error occurred while deleting the account: {ex.Message}");
            }
        }

        [HttpGet(nameof(GetClient))]
        [Authorize]
        [SwaggerOperation("Get client information")]
        [ProducesResponseType(StatusCodes.Status500InternalServerError, Type = typeof(string))]
        [ProducesResponseType(StatusCodes.Status200OK, Type = typeof(string))]
        public IActionResult GetClient()
        {
            // Check if securityProvider is null
            if (securityProvider == null)
            {
                return StatusCode(500, "Security provider is not available");
            }

            // Check if dataService is null
            if (dataService == null)
            {
                return StatusCode(500, "Data service is not available");
            }

            var objectSpace = dataService.GetObjectSpace<Client>();
            var userID = (Guid)securityProvider.GetSecurity().UserId;
            var clients = objectSpace.GetObjectsQuery<Client>()
                .Select(sl => new { Fulname = sl.FullName, Oid = sl.Oid, PhoneNo = sl.Telefon})
                .First(cl => cl.Oid == userID);


            return Ok(clients);
        }

        [HttpPost(nameof(FirebaseToken))]
        [Authorize]
        [SwaggerOperation("Updates clients firebase token")]
        [ProducesResponseType(StatusCodes.Status500InternalServerError, Type = typeof(string))]
        [ProducesResponseType(StatusCodes.Status200OK, Type = typeof(string))]
        [ProducesResponseType(StatusCodes.Status403Forbidden, Type = typeof(string))]
        [ProducesResponseType(StatusCodes.Status400BadRequest, Type = typeof(string))]
        public IActionResult FirebaseToken([FromQuery] string token)
        {
            // Check if securityProvider is null
            if (securityProvider == null)
            {
                return StatusCode(500, "Security provider is not available");
            }
            
            // Check if dataService is null
            if (dataService == null)
            {
                return StatusCode(500, "Data service is not available");
            }

            var strategy = (SecurityStrategy)securityProvider.GetSecurity();
            if(!strategy.CanWrite(typeof(Client)))
                return Forbid("You do not have permissions to update a client!");

            var user = (Client)strategy.User;
            if (user == null || string.IsNullOrEmpty(token)) {
                return BadRequest();
            }

            var objectSpace = dataService.GetObjectSpace(typeof(Client));
            var client = objectSpace.GetObject(user);

            // Update the token and commit changes
            client.FirebaseToken = token;
            objectSpace.CommitChanges();
            
            return Ok("Firebase token updated successfully."); 
        }

    }
}