import { expect } from 'chai';
import { rm } from 'fs/promises';
import { basename } from 'path';
import { handleFiles } from '../../src/handle-file';
import { readCsvFile } from '../../src/utils/csv';
import { createFile } from '../../src/utils/file';
import { getTestPath, randomString } from '../utils/utils';

describe('handle-file/index', () => {
  const inputFilePath: string[] = [];
  const contents: string[][] = [];
  let outputFilePath = '';

  beforeEach(async () => {
    outputFilePath = getTestPath('files-info.csv');
    ['a', 'b', 'c'].forEach((item, index) => {
      inputFilePath[index] = getTestPath(`${randomString()}.log`);
      contents.push([]);
      for (let i = 0; i < 20; i += 1) {
        contents[index].push(`${item} ${i}`);
      }
    });

    await createFile(inputFilePath[0], contents[0]);
    await createFile(inputFilePath[1], contents[1]);
    await createFile(inputFilePath[2], contents[2]);
  });

  afterEach(async () => {
    await rm(inputFilePath[0]);
    await rm(inputFilePath[1]);
    await rm(inputFilePath[2]);
    await rm(outputFilePath);
  });

  it('输出文件信息到目录', async () => {
    await handleFiles({
      inputDir: getTestPath(),
      outputFilePath,
    });

    const filesInfo = await readCsvFile(outputFilePath);
    expect(filesInfo).to.have.deep.members([
      {
        name: basename(inputFilePath[0]),
        fullPath: inputFilePath[0],
        size: '89.00 B',
        rowCount: '19',
        head: 'a 0\na 1\na 2',
        middle: 'a 7\na 8\na 9',
        tail: 'a 17\na 18\na 19',
      },
      {
        name: basename(inputFilePath[1]),
        fullPath: inputFilePath[1],
        size: '89.00 B',
        rowCount: '19',
        head: 'b 0\nb 1\nb 2',
        middle: 'b 7\nb 8\nb 9',
        tail: 'b 17\nb 18\nb 19',
      },
      {
        name: basename(inputFilePath[2]),
        fullPath: inputFilePath[2],
        size: '89.00 B',
        rowCount: '19',
        head: 'c 0\nc 1\nc 2',
        middle: 'c 7\nc 8\nc 9',
        tail: 'c 17\nc 18\nc 19',
      },
    ]);
  });
});