pustovitDmytro / json-logs

import * as vscode from 'vscode';

import { LINE_SEPERATOR, TAB_SIZE } from '../constants';

import { commandDecorator } from './utils';

export const MESSAGES = {

    SUCCESS_MESSAGE : 'Logs prettified',

    ERROR_MESSAGE   : 'Error occured',

    EDITOR_NOT_FOUND : 'No editor found'

};

function parseJSONLine(line: string, index: number) {

    try {

        const json = JSON.parse(line);

        return JSON.stringify(json, null, TAB_SIZE);

    } catch (error) {

        console.error(`CANT_PARSE_LINE ${index}`);

        console.error(line);

        console.error(error);

        return line;

    }

}

export function prettify() {

    const editor = vscode.window.activeTextEditor;

    if (!editor) {

        return console.error(MESSAGES.EDITOR_NOT_FOUND);

    }

    const raw = editor.document.getText();

    const lines = raw.split(LINE_SEPERATOR);

    const modified = lines.map((line, index) => parseJSONLine(line, index));

    editor.edit(builder => {

        const firstLine = editor.document.lineAt(0);

        const lastLine = editor.document.lineAt(editor.document.lineCount - 1);

        const range = new vscode.Range(firstLine.range.start, lastLine.range.end);

        builder.replace(range, modified.join('\n'));

    });

}

export default commandDecorator(prettify, MESSAGES);