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refactor: refactor code by cursor #135

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merged 4 commits into from
Sep 21, 2024
Merged

refactor: refactor code by cursor #135

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4a7350d
refactor: refactor by cursor
afc163 Sep 20, 2024
baf3895
Merge branch 'main' into refactor/all-code
afc163 Sep 21, 2024
ad17273
Update lib/config.js
afc163 Sep 21, 2024
11001fc
refactor
afc163 Sep 21, 2024
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2 changes: 1 addition & 1 deletion lib/config.js
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@ const config = {
fs.existsSync(configDir) || fs.mkdirSync(configDir, { recursive: true });
fs.writeFileSync(path, content);
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console.log(
`${chalkInstance.bgGreen(JSON.stringify(options))} config saved at ${chalkInstance.gray(path)}:`,
`${chalkInstance.bgGreen(JSON.stringify(options))} 配置已保存至 ${chalkInstance.gray(path)}:`,
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);
for (const [key, value] of Object.entries(options)) {
console.log(`${chalk.cyan(key)}: ${chalk.yellow(value)}`);
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21 changes: 6 additions & 15 deletions lib/print.js
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Expand Up @@ -13,15 +13,9 @@ exports.iciba = (data, options = {}) => {
firstLine += `${data.key} `;

// maybe string
if (typeof data.ps === 'string') {
data.ps = [data.ps];
}
if (typeof data.pos === 'string') {
data.pos = [data.pos];
}
if (typeof data.acceptation === 'string') {
data.acceptation = [data.acceptation];
}
[data.ps, data.pos, data.acceptation] = [data.ps, data.pos, data.acceptation].map((item) =>
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Refactored array handling and string conversion logic. Ensure that the new approach correctly handles all edge cases, such as when data.ps, data.pos, or data.acceptation are undefined or null.

typeof item === 'string' ? [item] : item,
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  • This rule aims to improve code clarity and reduce the potential for misunderstanding by disallowing the use of arrow functions in a context where they could be confused with comparison operators. This is particularly important in complex expressions where the distinction between an arrow function's concise body and a comparison operation can be subtle.

  • Enforcing this rule helps prevent bugs and errors in code by ensuring that the intent behind using an arrow function is clear and unambiguous. It encourages developers to write more readable and maintainable code by making the separation between arrow functions and comparisons explicit.

Suggested change
typeof item === 'string' ? [item] : item,
(typeof item === 'string' ? [item] : item),

);
Comment on lines +16 to +18
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category Readability and Maintainability

Use more descriptive variable names.

I noticed that some of the variable names in the code are not very descriptive, such as 'ps', 'pos', 'acceptation', 'orig', and 'trans'. It would improve the readability of the code if these were renamed to something more descriptive. For example, 'ps' could be renamed to 'phoneticSymbols', 'pos' could be 'partsOfSpeech', 'acceptation' could be 'meanings', 'orig' could be 'originalSentence', and 'trans' could be 'translatedSentence'. This would make it easier for other developers to understand what these variables represent when they read the code.

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// phonetic symbol
data.ps?.forEach?.((item, i) => {
Comment on lines 13 to 21
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The code modifies the data object directly, which can lead to unintended side effects if data is used elsewhere in the program. This can make the function harder to understand and maintain.

Recommendation: Create a new object or use destructuring to avoid mutating the input object directly.

const { ps, pos, acceptation } = data;
const processedPs = typeof ps === 'string' ? [ps] : ps;
const processedPos = typeof pos === 'string' ? [pos] : pos;
const processedAcceptation = typeof acceptation === 'string' ? [acceptation] : acceptation;

Expand Down Expand Up @@ -49,12 +43,9 @@ exports.iciba = (data, options = {}) => {
}

data.sent?.forEach?.((item, i) => {
if (typeof item.orig !== 'string' && item.orig[0]) {
item.orig = item.orig[0].trim();
}
if (typeof item.trans !== 'string' && item.trans[0]) {
item.trans = item.trans[0].trim();
}
[item.orig, item.trans] = [item.orig, item.trans].map((subItem) =>
typeof subItem !== 'string' && subItem[0] ? subItem[0].trim() : subItem,
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Refactored sentence handling logic. Ensure that the new approach correctly handles all edge cases, such as when item.orig or item.trans are undefined or null.

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  • This rule aims to improve code clarity and reduce the potential for misunderstanding by disallowing the use of arrow functions in a context where they could be confused with comparison operators. This is particularly important in complex expressions where the distinction between an arrow function's concise body and a comparison operation can be subtle.

  • Enforcing this rule helps prevent bugs and errors in code by ensuring that the intent behind using an arrow function is clear and unambiguous. It encourages developers to write more readable and maintainable code by making the separation between arrow functions and comparisons explicit.

Suggested change
typeof subItem !== 'string' && subItem[0] ? subItem[0].trim() : subItem,
(typeof subItem !== 'string' && subItem[0] ? subItem[0].trim() : subItem),

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The condition does not handle cases where subItem is an empty array or a non-array object, which could lead to runtime errors. It should explicitly check if subItem is an array and has a length greater than 0.

);
log(`${chalk.gray(`${i + 1}. `)}${highlight(item.orig, data.key)}`);
log(` ${chalk.cyan(item.trans)}`);
});
Comment on lines 43 to 51
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The nested mapping and conditional logic within the forEach loop can be simplified for better readability and maintainability. Additionally, the current implementation does not handle cases where item.orig or item.trans might be undefined or null.

Recommendation: Simplify the mapping logic and add checks for undefined or null values.

data.sent?.forEach?.((item, i) => {
const orig = typeof item.orig === 'string' ? item.orig.trim() : (item.orig?.[0]?.trim() || '');
const trans = typeof item.trans === 'string' ? item.trans.trim() : (item.trans?.[0]?.trim() || '');

log(`${chalk.gray(`${i + 1}. `)}${highlight(orig, data.key)}`);
log(`   ${chalk.cyan(trans)}`);
});

Comment on lines 45 to 51
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category Functionality

Add type checking for item.orig and item.trans.

It's important to add type checking for item.orig and item.trans before accessing their properties or methods. This will prevent potential errors if these properties are undefined or not of the expected type. Consider modifying the code as follows:

data.sent?.forEach?.((item, i) => {
  if (item && typeof item === 'object') {
    [item.orig, item.trans] = [item.orig, item.trans].map((subItem) =>
      Array.isArray(subItem) && subItem[0] ? subItem[0].trim() : (typeof subItem === 'string' ? subItem.trim() : '')
    );
    log(`${chalk.gray(`${i + 1}. `)}${highlight(item.orig, data.key)}`);
    log(`   ${chalk.cyan(item.trans)}`);
  }
});

This change ensures that the code handles various possible types of item.orig and item.trans, preventing potential runtime errors.

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17 changes: 5 additions & 12 deletions lib/searchHistory.js
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Expand Up @@ -4,7 +4,7 @@ const chalk = require('chalk');
const dayjs = require('dayjs');

const homedir = process.env.HOME || require('node:os').homedir();
const searchFilePath = path.resolve(homedir, '.config', 'fanyi', 'searchHistroy.txt');
const searchFilePath = path.resolve(homedir, '.config', 'fanyi', 'searchHistory.txt');
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Typo fixed in the file path: 'searchHistroy.txt' to 'searchHistory.txt'. Ensure that this change does not affect any other parts of the application that rely on the old file path.

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const DAY_SPLIT = 'day-';
const WORD_MEAN_SPLIT = ' ';
Expand All @@ -13,18 +13,12 @@ const today = dayjs().format('YYYY-MM-DD');

// @return Array<`day+words`>
function getTargetContent(content, startDay, endDay) {
// 无结束日期，则为查指定日期
const endDayValue = endDay || startDay;
const allDays = content.split(DAY_SPLIT);
const targetData = [];
for (const item of allDays) {
if (item.length) {
const [day] = item.split(':\n');
if (day >= startDay && day <= endDayValue) {
targetData.push(item);
}
}
}
const targetData = allDays
.map((item) => item.split(':\n'))
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Refactored logic for filtering and mapping search history data. Ensure that the new approach correctly handles all edge cases, such as when content is an empty string or does not contain the expected format.

.filter(([day]) => day >= startDay && day <= endDayValue)
.map(([day, content]) => `${DAY_SPLIT}${day}:\n${content}`);
return targetData;
}
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category Functionality

Add error handling to getTargetContent function.

The refactored getTargetContent function looks more concise, but it might not handle empty or malformed data correctly. Consider adding error handling to ensure the function can deal with unexpected input. For example, you could add a check for item.length before splitting, and handle cases where the split operation doesn't result in the expected array structure.

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The function getTargetContent does not handle cases where the content format is incorrect or missing expected delimiters. This could lead to unexpected behavior or errors.

Recommendation: Add validation to ensure that the content is in the expected format before processing. If the format is incorrect, handle the error gracefully, possibly by logging a warning or returning an empty array.

Expand All @@ -48,7 +42,6 @@ exports.searchList = (args) => {
console.log(chalk.gray('fanyi history:'));
console.log();
let targetContent;
// 与配置放在一起
fs.ensureFileSync(searchFilePath);
const data = fs.readFileSync(searchFilePath);
const content = data.toString();
Comment on lines 41 to 46
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The code reads the entire content of the search history file into memory using fs.readFileSync. This can be problematic if the file is large, leading to high memory usage and potential performance issues.

Recommendation: Consider using a streaming approach to read the file content, which can handle large files more efficiently. For example, you can use fs.createReadStream to process the file line by line.

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