using System;
using System.Security.Cryptography;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Caching.Memory;
using Mirea.Api.Endpoint.Common.Attributes;
using Mirea.Api.Endpoint.Common.Exceptions;
using Mirea.Api.Endpoint.Common.Interfaces;
using Mirea.Api.Endpoint.Common.Services;
using Mirea.Api.Endpoint.Configuration.General;
using Mirea.Api.Endpoint.Configuration.General.Settings;
using System;
using System.Data;

namespace Mirea.Api.Endpoint.Controllers.Configuration;

[ApiVersion("1.0")]
[ApiController]
[MaintenanceModeIgnore]
public class SetupController(ISetupToken setupToken, IMaintenanceModeNotConfigureService notConfigureService, IMemoryCache cache) : BaseController
{
    private const string CacheGeneralKey = "config_part";
    private GeneralConfig GeneralConfig
{
        get => cache.Get<GeneralConfig>(CacheGeneralKey) ?? new GeneralConfig();
        set => cache.Set(CacheGeneralKey, value);
    }

    [HttpGet("GenerateToken")]
    [Localhost]
    public ActionResult<string> GenerateToken()
    {
        if (!notConfigureService.IsMaintenanceMode)
            throw new ControllerArgumentException(
                "The token cannot be generated because the server has been configured. " +
                $"If you need to restart the configuration, then delete the \"{PathBuilder.Combine(GeneralConfig.FilePath)}\" file and restart the application.");

        var token = new byte[32];
        RandomNumberGenerator.Create().GetBytes(token);
        setupToken.SetToken(token);

        return Ok(Convert.ToBase64String(token));
    }

    [HttpGet("CheckToken")]
    public ActionResult<bool> CheckToken([FromQuery] string token)
    {
        if (!setupToken.MatchToken(Convert.FromBase64String(token))) return Unauthorized("The token is not valid");

        Response.Cookies.Append("AuthToken", token, new CookieOptions
        {
            HttpOnly = false,
            Secure = false,
            Path = "/"
        });

        return Ok(true);
    }

    private ActionResult<bool> SetDatabase<TConnection, TException>(string connectionString, DbSettings.DatabaseEnum databaseType)
        where TConnection : class, IDbConnection, new()
        where TException : Exception
    {
        try
        {
            using var connection = new TConnection();
            connection.ConnectionString = connectionString;
            connection.Open();
            connection.Close();

            var general = GeneralConfig;
            general.DbSettings = new DbSettings
            {
                ConnectionStringSql = connectionString,
                TypeDatabase = databaseType
            };
            GeneralConfig = general;

        return Ok(true);
    }
        catch (TException ex)
        {
            throw new ControllerArgumentException($"Error when connecting: {ex.Message}");
        }
    }


}