using Microsoft.AspNetCore.Mvc;
using System.Net;
using System.Net.Http.Headers;
using Microsoft.Extensions.Hosting.Internal;
using Microsoft.AspNetCore.Http.Extensions;
using IStation.Untity;
using Furion.DynamicApiController;
using System.ComponentModel.DataAnnotations;
using Mapster;
using Microsoft.AspNetCore.Http;
using Furion.DependencyInjection;
using Microsoft.AspNetCore.Authorization;
using Furion.DataEncryption;

namespace IStation.Application
{
    /// <summary>
    /// File
    /// </summary>
    [AllowAnonymous]
    [Route("File")]
    [ApiDescriptionSettings("File", Name = "文件", Order = 1000)]
    public class File_Controller : IDynamicApiController, ITransient
    {
        private readonly IHttpContextAccessor _httpContextAccessor;

        /// <summary>
        /// 
        /// </summary>
        public File_Controller(IHttpContextAccessor httpContextAccessor)
        {
            _httpContextAccessor = httpContextAccessor;
        }

        #region 上传文件

        /// <summary>
        /// 上传文件
        /// </summary> 
        [Route("UploadFile@V1.0")]
        [HttpPost]
        public string UploadFile()
        {
            var request = _httpContextAccessor.HttpContext.Request;
            if (request.Form.Files == null || request.Form.Files.Count != 1)
            {
                return string.Empty;
            }
            var uploadFile = request.Form.Files[0];

            var fileName = FileHelper.UploadFile(uploadFile.OpenReadStream(), Path.GetExtension(uploadFile.FileName));
            return fileName;
        }

        /// <summary>
        /// 上传文件到子目录下
        /// </summary> 
        [Route("UploadSubFile@V1.0")]
        [HttpPost]
        public string UploadSubFile
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string Sub
            )
        {
            var request = _httpContextAccessor.HttpContext.Request;
            if (request.Form.Files == null || request.Form.Files.Count != 1)
            {
                return string.Empty;
            }
            var uploadFile = request.Form.Files[0];
            var fileName = FileHelper.UploadSubFile(Sub, uploadFile.OpenReadStream(), Path.GetExtension(uploadFile.FileName));
            return fileName;
        }

        #endregion

        #region 下载文件

        /// <summary>
        /// 下载文件
        /// </summary> 
        [Route("DownloadFile@V1.0")]
        [HttpGet]
        [NonUnify]
        public HttpResponseMessage DownloadFile
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string FileName
            )
        {
            if (string.IsNullOrEmpty(FileName))
            {
                return new HttpResponseMessage(HttpStatusCode.NoContent);
            }

            var file = FileHelper.DownloadFile(FileName);
            if (file == null)
            {
                return new HttpResponseMessage(HttpStatusCode.NoContent);
            }

            var result = new HttpResponseMessage(HttpStatusCode.OK);
            result.Content = new StreamContent(file);
            result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
            return result;
        }

        /// <summary>
        /// 下载子目录下的文件
        /// </summary> 
        [Route("DownloadSubFile@V1.0")]
        [HttpGet]
        [NonUnify]
        public HttpResponseMessage DownloadSubFile
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string Sub,
                [Required,DataValidation(AllowEmptyStrings =false)]
                string FileName
            )
        {
            if (string.IsNullOrEmpty(Sub))
            {
                return new HttpResponseMessage(HttpStatusCode.NoContent);
            }
            if (string.IsNullOrEmpty(FileName))
            {
                return new HttpResponseMessage(HttpStatusCode.NoContent);
            }

            var file = FileHelper.DownloadSubFile(Sub, FileName);
            if (file == null)
            {
                return new HttpResponseMessage(HttpStatusCode.NoContent);
            }

            var result = new HttpResponseMessage(HttpStatusCode.OK);
            result.Content = new StreamContent(file);
            result.Content.Headers.ContentType = new MediaTypeHeaderValue("application/octet-stream");
            return result;
        }

        #endregion

        #region 更新文件

        /// <summary>
        /// 更新文件
        /// </summary> 
        [Route("UpdateFile@V1.0")]
        [HttpPost]
        public string UpdateFile
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string FileName
            )
        {
            var request = _httpContextAccessor.HttpContext.Request;
            if (request.Form.Files == null || request.Form.Files.Count != 1)
            {
                return string.Empty;
            }
            var uploadFile = request.Form.Files[0];
            var code = FileHelper.UpdateFile(FileName, uploadFile.OpenReadStream(), Path.GetExtension(uploadFile.FileName));
            return code;
        }

        /// <summary>
        /// 更新子文件下的文件
        /// </summary> 
        [Route("UpdateSubFile@V1.0")]
        [HttpPost]
        public string UpdateSubFile
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string Sub,
                [Required,DataValidation(AllowEmptyStrings =false)]
                string FileName
            )
        {
            var request = _httpContextAccessor.HttpContext.Request;
            if (request.Form.Files == null || request.Form.Files.Count != 1)
            {
                return string.Empty;
            }
            var uploadFile = request.Form.Files[0];
            var code = FileHelper.UpdateSubFile(Sub, FileName, uploadFile.OpenReadStream(), Path.GetExtension(uploadFile.FileName));
            return code;
        }

        #endregion

        #region 删除文件

        /// <summary>
        /// 删除文件
        /// </summary> 
        [Route("DeleteFile@V1.0")]
        [HttpDelete]
        public bool DeleteFile
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string FileName
            )
        {
            var bol = FileHelper.Delete(FileName);
            return bol;
        }

        /// <summary>
        /// 删除子文件下文件
        /// </summary> 
        [Route("DeleteSubFile@V1.0")]
        [HttpDelete]
        public bool DeleteSubFile
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string Sub,
                [Required,DataValidation(AllowEmptyStrings =false)]
                string FileName
            )
        {
            var bol = FileHelper.Delete(Sub, FileName);
            return bol;
        }

        #endregion

        #region 获取Url

        /// <summary>
        /// 获取文件Url
        /// </summary> 
        [Route("GetFileUrl@V1.0")]
        [HttpGet]
        public string GetFileUrl
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string FileName
            )
        {
            var url = $"http://{_httpContextAccessor.HttpContext.Request.Host}/{FileHelper.GetRelatedFilePath(FileName)}";
            return url;
        }

        /// <summary>
        /// 获取子文件夹下的文件Url
        /// </summary> 
        [Route("GetSubFileUrl@V1.0")]
        [HttpGet]
        public string GetSubFileUrl
            (
                [Required,DataValidation(AllowEmptyStrings =false)]
                string Sub,
                [Required,DataValidation(AllowEmptyStrings =false)]
                string FileName
            )
        {
            var url = $"http://{_httpContextAccessor.HttpContext.Request.Host}/{FileHelper.GetRelatedFilePath(Sub, FileName)}";
            return url;
        }

        #endregion


    }
}