using Asp.Versioning;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;
using Mirea.Api.Dto.Common;
using Mirea.Api.Dto.Requests;
using Mirea.Api.Dto.Responses;
using Mirea.Api.Endpoint.Common.Attributes;
using Mirea.Api.Endpoint.Common.Exceptions;
using Mirea.Api.Endpoint.Common.Services;
using Mirea.Api.Endpoint.Configuration.Model;
using Mirea.Api.Security.Common.Domain;
using Mirea.Api.Security.Services;
using System;
using System.Threading.Tasks;

namespace Mirea.Api.Endpoint.Controllers.V1;

[ApiVersion("1.0")]
public class AuthController(IOptionsSnapshot<Admin> user, AuthService auth, PasswordHashService passwordService) : BaseController
{
    private CookieOptionsParameters GetCookieParams() =>
        new()
        {
            Domain = HttpContext.GetCurrentDomain(),
            Path = UrlHelper.GetSubPathWithoutFirstApiName + "api"
        };

    [HttpPost("Login")]
    [BadRequestResponse]
    public async Task<ActionResult<AuthenticationStep>> Login([FromBody] LoginRequest request)
    {
        var userEntity = user.Value;

        if (!userEntity.Username.Equals(request.Username, StringComparison.OrdinalIgnoreCase) &&
            !userEntity.Email.Equals(request.Username, StringComparison.OrdinalIgnoreCase))
            return BadRequest("Invalid username/email or password");

        var tokenResult = await auth.LoginAsync(
            GetCookieParams(),
            new User
            {
                Id = 1,
                Username = userEntity.Username,
                Email = userEntity.Email,
                PasswordHash = userEntity.PasswordHash,
                Salt = userEntity.Salt,
                SecondFactor = userEntity.SecondFactor,
                SecondFactorToken = userEntity.Secret
            },
            HttpContext, request.Password);

        return Ok(tokenResult ? AuthenticationStep.None : AuthenticationStep.TotpRequired);
    }

    [HttpGet("Login")]
    [BadRequestResponse]
    public async Task<ActionResult<AuthenticationStep>> Login([FromQuery] string code)
    {
        var tokenResult = await auth.LoginAsync(GetCookieParams(), HttpContext, code);
        return Ok(tokenResult ? AuthenticationStep.None : AuthenticationStep.TotpRequired);
    }

    /// <summary>
    /// Refreshes the authentication token using the existing refresh token.
    /// </summary>
    /// <returns>User's AuthRoles.</returns>
    [HttpGet("ReLogin")]
    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
    [ProducesResponseType(StatusCodes.Status403Forbidden)]
    public async Task<ActionResult<AuthRoles>> ReLogin()
    {
        await auth.RefreshTokenAsync(GetCookieParams(), HttpContext);
        return Ok(AuthRoles.Admin);
    }

    /// <summary>
    /// Logs the user out by clearing the refresh token and performing any necessary cleanup.
    /// </summary>
    /// <returns>An Ok response if the logout was successful.</returns>
    [HttpGet("Logout")]
    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
    [Authorize]
    public async Task<ActionResult> Logout()
    {
        await auth.LogoutAsync(GetCookieParams(), HttpContext);

        return Ok();
    }

    /// <summary>
    /// Retrieves the role of the authenticated user.
    /// </summary>
    /// <returns>The role of the authenticated user.</returns>
    [HttpGet("GetRole")]
    [ProducesResponseType(StatusCodes.Status401Unauthorized)]
    [Authorize]
    public ActionResult<AuthRoles> GetRole() => Ok(AuthRoles.Admin);

    [HttpPost("RenewPassword")]
    [ApiExplorerSettings(IgnoreApi = true)]
    [Localhost]
    [BadRequestResponse]
    public ActionResult<string> RenewPassword([FromBody] string? password = null)
    {
        if (string.IsNullOrEmpty(password))
            password = string.Empty;
        else if (!PasswordHashService.HasPasswordInPolicySecurity(password))
            throw new ControllerArgumentException("The password must be at least 8 characters long and contain at least one uppercase letter and one special character.");

        while (!PasswordHashService.HasPasswordInPolicySecurity(password))
            password = GeneratorKey.GenerateAlphaNumeric(16, includes: "!@#%^");

        var (salt, hash) = passwordService.HashPassword(password);

        var admin = user.Value;

        admin.Salt = salt;
        admin.PasswordHash = hash;
        admin.SaveSetting();

        return Ok(password);
    }
}