import { Body, Controller, Get, Post, Query } from '@nestjs/common';
import { ApiOkResponse, ApiOperation, ApiTags } from '@nestjs/swagger';

import { BusinessException } from '~/common/exceptions/biz.exception';
import { ErrorEnum } from '~/constants/error-code.constant';
import { AuthUser } from '~/modules/auth/decorators/auth-user.decorator';

import { Perm, definePermission } from '~/modules/auth/decorators/permission.decorator';

import { checkIsDemoMode } from '~/utils';

import { SFileInfoDetail, SFileList, UploadToken } from './manage.class';
import {
  DeleteDto,
  FileInfoDto,
  FileOpDto,
  GetFileListDto,
  MKDirDto,
  MarkFileDto,
  RenameDto,
} from './manage.dto';
import { NetDiskManageService } from './manage.service';

export const permissions = definePermission('netdisk:manage', {
  LIST: 'list',
  CREATE: 'create',
  INFO: 'info',
  UPDATE: 'update',
  DELETE: 'delete',
  MKDIR: 'mkdir',
  TOKEN: 'token',
  MARK: 'mark',
  DOWNLOAD: 'download',
  RENAME: 'rename',
  CUT: 'cut',
  COPY: 'copy',
} as const);

@ApiTags('NetDiskManage - 网盘管理模块')
@Controller('manage')
export class NetDiskManageController {
  constructor(private manageService: NetDiskManageService) {}

  @Get('list')
  @ApiOperation({ summary: '获取文件列表' })
  @ApiOkResponse({ type: SFileList })
  @Perm(permissions.LIST)
  async list(@Query() dto: GetFileListDto): Promise<SFileList> {
    return await this.manageService.getFileList(dto.path, dto.marker, dto.key);
  }

  @Post('mkdir')
  @ApiOperation({ summary: '创建文件夹，支持多级' })
  @Perm(permissions.MKDIR)
  async mkdir(@Body() dto: MKDirDto): Promise<void> {
    const result = await this.manageService.checkFileExist(`${dto.path}${dto.dirName}/`);
    if (result) throw new BusinessException(ErrorEnum.OSS_FILE_OR_DIR_EXIST);

    await this.manageService.createDir(`${dto.path}${dto.dirName}`);
  }

  @Get('token')
  @ApiOperation({ summary: '获取上传Token，无Token前端无法上传' })
  @ApiOkResponse({ type: UploadToken })
  @Perm(permissions.TOKEN)
  async token(@AuthUser() user: IAuthUser): Promise<UploadToken> {
    checkIsDemoMode();

    return {
      token: this.manageService.createUploadToken(`${user.uid}`),
    };
  }

  @Get('info')
  @ApiOperation({ summary: '获取文件详细信息' })
  @ApiOkResponse({ type: SFileInfoDetail })
  @Perm(permissions.INFO)
  async info(@Query() dto: FileInfoDto): Promise<SFileInfoDetail> {
    return await this.manageService.getFileInfo(dto.name, dto.path);
  }

  @Post('mark')
  @ApiOperation({ summary: '添加文件备注' })
  @Perm(permissions.MARK)
  async mark(@Body() dto: MarkFileDto): Promise<void> {
    await this.manageService.changeFileHeaders(dto.name, dto.path, {
      mark: dto.mark,
    });
  }

  @Get('download')
  @ApiOperation({ summary: '获取下载链接，不支持下载文件夹' })
  @ApiOkResponse({ type: String })
  @Perm(permissions.DOWNLOAD)
  async download(@Query() dto: FileInfoDto): Promise<string> {
    return this.manageService.getDownloadLink(`${dto.path}${dto.name}`);
  }

  @Post('rename')
  @ApiOperation({ summary: '重命名文件或文件夹' })
  @Perm(permissions.RENAME)
  async rename(@Body() dto: RenameDto): Promise<void> {
    const result = await this.manageService.checkFileExist(
      `${dto.path}${dto.toName}${dto.type === 'dir' ? '/' : ''}`
    );
    if (result) throw new BusinessException(ErrorEnum.OSS_FILE_OR_DIR_EXIST);

    if (dto.type === 'file') await this.manageService.renameFile(dto.path, dto.name, dto.toName);
    else await this.manageService.renameDir(dto.path, dto.name, dto.toName);
  }

  @Post('delete')
  @ApiOperation({ summary: '删除文件或文件夹' })
  @Perm(permissions.DELETE)
  async delete(@Body() dto: DeleteDto): Promise<void> {
    await this.manageService.deleteMultiFileOrDir(dto.files, dto.path);
  }

  @Post('cut')
  @ApiOperation({ summary: '剪切文件或文件夹，支持批量' })
  @Perm(permissions.CUT)
  async cut(@Body() dto: FileOpDto): Promise<void> {
    if (dto.originPath === dto.toPath)
      throw new BusinessException(ErrorEnum.OSS_NO_OPERATION_REQUIRED);

    await this.manageService.moveMultiFileOrDir(dto.files, dto.originPath, dto.toPath);
  }

  @Post('copy')
  @ApiOperation({ summary: '复制文件或文件夹，支持批量' })
  @Perm(permissions.COPY)
  async copy(@Body() dto: FileOpDto): Promise<void> {
    await this.manageService.copyMultiFileOrDir(dto.files, dto.originPath, dto.toPath);
  }
}