using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Routing;
using Microsoft.Extensions.Logging;
using Microsoft.AspNetCore.Authorization;
using Microsoft.EntityFrameworkCore;
using AyaNova.Models;
using AyaNova.Api.ControllerHelpers;
using AyaNova.Biz;
using System.Threading.Tasks;
using AyaNova.Biz;
using Newtonsoft.Json.Linq;
using AyaNova.Util;
using System.Linq;

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
//************************************************************************************************************** */
//JUNE 19th 2018 LARGE FILE UPLOAD POSSIBLY NEW INFO HERE:
//http://www.talkingdotnet.com/how-to-increase-file-upload-size-asp-net-core/

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////





namespace AyaNova.Api.Controllers
{


    /// <summary>
    /// Backup
    /// 
    /// </summary>
    [ApiController]
    [ApiVersion("8.0")]
    [Route("api/v{version:apiVersion}/backup")]
    [Produces("application/json")]
    [Authorize]
    public class BackupController : ControllerBase
    {
        private readonly AyContext ct;
        private readonly ILogger<BackupController> log;
        private readonly ApiServerState serverState;



        /// <summary>
        /// 
        /// </summary>
        /// <param name="dbcontext"></param>
        /// <param name="logger"></param>
        /// <param name="apiServerState"></param>
        public BackupController(AyContext dbcontext, ILogger<BackupController> logger, ApiServerState apiServerState)
        {
            ct = dbcontext;
            log = logger;
            serverState = apiServerState;
        }


        /// <summary>
        /// Trigger immediate system backup
        /// 
        /// </summary>        
        /// <returns>Job Id</returns>
        [HttpPost("backup-now")]
        [Authorize]
        public async Task<IActionResult> PostServerState()
        {
            if (serverState.IsClosed)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));

            if (!Authorized.HasAnyRole(HttpContext.Items, AuthorizationRoles.OpsAdminFull | AuthorizationRoles.OpsAdminLimited))
                return StatusCode(403, new ApiNotAuthorizedResponse());


            var JobName = $"Backup (on demand)";

            OpsJob j = new OpsJob();
            j.Name = JobName;
            j.ObjectType = AyaType.NoType;
            j.JobType = JobType.Backup;
            j.SubType = JobSubType.NotSet;
            j.Exclusive = true;

            await JobsBiz.AddJobAsync(j, ct);
            await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserIdFromContext.Id(HttpContext.Items), 0, AyaType.ServerJob, AyaEvent.Created, JobName), ct);
            return Accepted(new { JobId = j.GId });
        }


        /// <summary>
        /// Get list of backup files
        /// </summary>
        /// <returns></returns>            
        [HttpGet("list")]
        public ActionResult ListBackupFiles()
        {
            if (serverState.IsClosed)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
            if (!Authorized.HasAnyRole(HttpContext.Items, AuthorizationRoles.OpsAdminFull | AuthorizationRoles.OpsAdminLimited))
                return StatusCode(403, new ApiNotAuthorizedResponse());
            return Ok(ApiOkResponse.Response(FileUtil.UtilityFileList()));
        }



    }//eoc
}//eons