import { minioClient } from '@/app.ts';
import { bucketName } from '@/modules/minio.ts';
import { CopyDestinationOptions, CopySourceOptions } from 'minio';
type MinioListOpt = {
  prefix: string;
  recursive?: boolean;
};
export type MinioFile = {
  name: string;
  size: number;
  lastModified: Date;
  etag: string;
};
export type MinioDirectory = {
  prefix: string;
  size: number;
};
export type MinioList = (MinioFile | MinioDirectory)[];
export const getMinioList = async (opts: MinioListOpt): Promise<MinioList> => {
  const prefix = opts.prefix;
  const recursive = opts.recursive ?? false;
  return await new Promise((resolve, reject) => {
    let res: any[] = [];
    let hasError = false;
    minioClient
      .listObjectsV2(bucketName, prefix, recursive)
      .on('data', (data) => {
        res.push(data);
      })
      .on('error', (err) => {
        console.error('minio error', opts.prefix, err);
        hasError = true;
      })
      .on('end', () => {
        if (hasError) {
          reject();
          return;
        } else {
          resolve(res);
        }
      });
  });
};
export const getFileStat = async (prefix: string, isFile?: boolean): Promise<any> => {
  try {
    const obj = await minioClient.statObject(bucketName, prefix);
    if (isFile && obj.size === 0) {
      return null;
    }
    return obj;
  } catch (e) {
    if (e.code === 'NotFound') {
      return null;
    }
    console.error('get File Stat Error not handle', e);
    return null;
  }
};

export const deleteFile = async (prefix: string): Promise<{ code: number; message: string }> => {
  try {
    const fileStat = await getFileStat(prefix);
    if (!fileStat) {
      console.warn(`File not found: ${prefix}`);
      return {
        code: 404,
        message: 'file not found',
      };
    }
    await minioClient.removeObject(bucketName, prefix, {
      versionId: 'null',
      forceDelete: true, // 强制删除
    });
    return {
      code: 200,
      message: 'delete success',
    };
  } catch (e) {
    console.error('delete File Error not handle', e);
    return {
      code: 500,
      message: 'delete failed',
    };
  }
};

// 批量删除文件
export const deleteFiles = async (prefixs: string[]): Promise<any> => {
  try {
    await minioClient.removeObjects(bucketName, prefixs);
    return true;
  } catch (e) {
    console.error('delete Files Error not handle', e);
    return false;
  }
};

type GetMinioListAndSetToAppListOpts = {
  username: string;
  appKey: string;
  version: string;
};
// 批量列出文件，并设置到appList的files中
export const getMinioListAndSetToAppList = async (opts: GetMinioListAndSetToAppListOpts) => {
  const { username, appKey, version } = opts;
  const minioList = await getMinioList({ prefix: `${username}/${appKey}/${version}`, recursive: true });
  const files = minioList;
  return files as MinioFile[];
};

/**
 * 更新文件的元数据
 * @param prefix 文件前缀
 * @param newMetadata 新的元数据
 * @returns
 */
export const updateFileStat = async (
  prefix: string,
  newMetadata: Record<string, string>,
): Promise<{
  code: number;
  data: any;
  message?: string;
}> => {
  try {
    const source = new CopySourceOptions({ Bucket: bucketName, Object: prefix });
    const destination = new CopyDestinationOptions({
      Bucket: bucketName,
      Object: prefix,
      UserMetadata: newMetadata,
      MetadataDirective: 'REPLACE',
    });
    const copyResult = await minioClient.copyObject(source, destination);
    console.log('copyResult', copyResult);
    console.log(`Metadata for ${prefix} updated successfully.`);
    return {
      code: 200,
      data: copyResult,
      message: 'update metadata success',
    };
  } catch (e) {
    console.error('Error updating file stat', e);
    return {
      code: 500,
      data: null,
      message: `update metadata failed. ${e.message}`,
    };
  }
};