using Abp.Auditing;
using Abp.Configuration;
using Abp.Dependency;
using Abp.Domain.Repositories;
using Abp.UI;

using VberZero.AppService.Attaches.Dto;
using VberZero.BaseSystem;
using VberZero.Folders;
using VberZero.Settings;
using VberZero.Tools.FileHelpers;

namespace VberZero.DomainService.Attaches;

public class AttachManager : VzDomainServiceBase, IAttachManager, ISingletonDependency
{
    public AttachManager(ISettingManager settingManager, IRepository<SysAttach> repository, IAppFolders appFolders, IWebHostEnvironment env)
    {
        SettingManager = settingManager;
        Repository = repository;
        AppFolders = appFolders;
        _env = env;
        //ObjectMapper = SingletonDependency<AutoMapperObjectMapper>.Instance;
    }

    private IRepository<SysAttach> Repository { get; }
    private IAppFolders AppFolders { get; }
    private readonly IWebHostEnvironment _env;

    /// <summary>
    /// 查询附件
    /// </summary>
    /// <param name="codeKey"></param>
    /// <param name="sourceKey"></param>
    /// <returns></returns>
    public async Task<AttachDto> GetFile(string codeKey, string sourceKey)
    {
        var file =
            await Repository.FirstOrDefaultAsync(a => a.CodeKey == codeKey && a.SourceKey == sourceKey);
        var dto = ObjectMapper.Map<AttachDto>(file);
        return dto;
    }

    /// <summary>
    /// 查询附件
    /// </summary>
    /// <param name="codeKey"></param>
    /// <param name="sourceKey"></param>
    /// <returns></returns>
    public async Task<List<AttachDto>> GetFiles(string codeKey, string sourceKey)
    {
        var files =
            await Repository.GetAllListAsync(a => a.CodeKey == codeKey && a.SourceKey == sourceKey);
        var dtoList = files.Select(ObjectMapper.Map<AttachDto>).ToList();
        return dtoList;
    }

    /// <summary>
    /// 删除附件
    /// </summary>
    /// <param name="codeKey"></param>
    /// <param name="sourceKey"></param>
    /// <returns></returns>
    public Task DeleteFile(string codeKey, string sourceKey)
    {
        return Repository.DeleteAsync(a => a.CodeKey == codeKey && a.SourceKey == sourceKey);
    }

    /// <summary>
    /// 删除附件
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    public Task DeleteFile(int id)
    {
        return Repository.DeleteAsync(a => a.Id == id);
    }

    /// <summary>
    /// 上传附件
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [DisableAuditing]
    public async Task FileUpload(AttachDto input)
    {
        if (await IsValidFileType(input))
        {
            string filePath = string.IsNullOrEmpty(input.FilePath)
                ? $"{AppFolders.DownloadFolder}/{input.CodeKey.Replace(".", "/")}"
                : input.FilePath;
            var lcRetVal = Base64ToFile(input.FileInfo, $"{input.FileName}-{DateTime.Now:yyMMddHHmmssfff}", input.FileExt, filePath);
            if (lcRetVal.StartsWith("error@"))
            {
                throw new UserFriendlyException(lcRetVal.Split(new[] { '@' }, StringSplitOptions.RemoveEmptyEntries)[1]);
            }
            input.FilePath = lcRetVal;
            if (input.IsUpdate)
            {
                var entity = await Repository.FirstOrDefaultAsync(a =>
                    a.CodeKey == input.CodeKey &&
                    a.SourceKey == input.SourceKey);
                if (entity == null)
                {
                    entity = ObjectMapper.Map<SysAttach>(input);
                    await Repository.InsertAsync(entity);
                }
                else
                {
                    entity.FileExt = input.FileExt;
                    entity.FileName = input.FileName;
                    entity.FileTitle = input.FileTitle;
                    entity.FilePath = lcRetVal;
                    entity.FileType = input.FileType;
                    await Repository.UpdateAsync(entity);
                }
            }
            else
            {
                var entity = ObjectMapper.Map<SysAttach>(input);
                await Repository.InsertAsync(entity);
            }

            return;
        }

        var allowExt = string.IsNullOrEmpty(input.AllowExt)
            ? await SettingManager.GetSettingValueAsync(VzSettingNames.UploadFileExt)
            : input.AllowExt;
        throw new UserFriendlyException(L("FileUploadFileTypeInvalidFormatter", $"{input.FileName}.{input.FileExt}", allowExt));
    }

    /// <summary>
    /// 上传附件
    /// </summary>
    /// <returns></returns>
    [DisableAuditing]
    public async Task FileUpload(string fileInfo, string filePath, string fileName, string fileExt)
    {
        if (await IsValidFileType(fileExt))
        {
            var lcRetVal = Base64ToFile(fileInfo, fileName, fileExt, filePath);
            if (lcRetVal.StartsWith("error@"))
            {
                throw new UserFriendlyException(lcRetVal.Split(new[] { '@' }, StringSplitOptions.RemoveEmptyEntries)[1]);
            }
            return;
        }
        var allowExt = await SettingManager.GetSettingValueAsync(VzSettingNames.UploadFileExt);
        throw new UserFriendlyException(L("FileUploadFileTypeInvalidFormatter", $"{fileName}.{fileExt}", allowExt));
    }

    /// <summary>
    /// 上传附件
    /// </summary>
    /// <returns></returns>
    [DisableAuditing]
    public async Task FileUpload(string fileInfo, string filePath, string fileName, string fileExt, string allowExt, bool checkAll = true)
    {
        checkAll = string.IsNullOrEmpty(allowExt) || checkAll;
        if (await IsValidFileType(fileExt, allowExt, checkAll))
        {
            var lcRetVal = Base64ToFile(fileInfo, fileName, fileExt, filePath);
            if (lcRetVal.StartsWith("error@"))
            {
                throw new UserFriendlyException(lcRetVal.Split(new[] { '@' }, StringSplitOptions.RemoveEmptyEntries)[1]);
            }
            Logger.Info("文件保存路径：" + lcRetVal);
            return;
        }

        allowExt = string.IsNullOrEmpty(allowExt)
            ?
            await SettingManager.GetSettingValueAsync(VzSettingNames.UploadFileExt)
            : checkAll
                ? await SettingManager.GetSettingValueAsync(VzSettingNames.UploadFileExt) + "," + allowExt
                : allowExt;
        throw new UserFriendlyException(L("FileUploadFileTypeInvalidFormatter", $"{fileName}.{fileExt}", allowExt));
    }

    private async Task<bool> IsValidFileType(AttachDto input)
    {
        return await IsValidFileType(input.FileExt, input.AllowExt, input.CheckAll);
    }

    private async Task<bool> IsValidFileType(string fileName, string allowExt = null, bool checkAll = true, bool isName = false)
    {
        string ext = isName ? GetFileExt(fileName) : fileName;
        allowExt = checkAll
            ? $"{allowExt ?? ""},{await SettingManager.GetSettingValueAsync(VzSettingNames.UploadFileExt)}"
            : allowExt;
        if (string.IsNullOrEmpty(allowExt))
            return true;
        string[] extList = allowExt.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
        foreach (var e in extList)
        {
            if (ext.ToLower() == e.ToLower())
                return true;
        }
        Logger.Error("上传的文件非法:" + fileName);
        return false;
    }

    private string GetFileExt(string fileName)
    {
        string fileExt = fileName.Substring(fileName.LastIndexOf(".", StringComparison.Ordinal) + 1, fileName.Length - fileName.LastIndexOf(".", StringComparison.Ordinal) - 1);
        return fileExt.ToLower();
    }

    private string Base64ToFile(string base64Str, string fileName, string fileExt, string filePath)
    {
        //string lcRetVal = "error@";
        //try
        //{
        //    fileName = $"{fileName}.{fileExt}";
        //    filePath = filePath.EndsWith("/") ? filePath : (filePath + "/");
        //    string path = Path.Combine(Env.WebRootPath, filePath);
        //    base64Str.SaveBase64File(path,fileName);
        //    lcRetVal = filePath + fileName;
        //}
        //catch (Exception e)
        //{
        //    Logger.Error(e.Message,e);
        //    lcRetVal += "FileUploadException";
        //}
        string lcRetVal = base64Str.Base64ToFile(fileName, filePath, fileExt, _env);
        return lcRetVal;
    }
}