1  export class NumberSelector {
 2    constructor(uiService) {
 3      this.uiService = uiService;
 4    }
 5  
 6    show = async (currentValue, promptMessage, allowMetricPostfixes) => {
 7      try {
 8        var valueStr = await this.promptForValueStr(promptMessage);
 9        valueStr = valueStr.replaceAll(" ", "");
10        const mult = this.getMetricsMult(valueStr, allowMetricPostfixes);
11        const value = this.getNumericValue(valueStr);
12        return value * mult;
13      } catch {
14        return currentValue;
15      }
16    };
17  
18    getMetricsMult = (valueStr, allowMetricPostfixes) => {
19      if (!allowMetricPostfixes) return 1;
20      const lower = valueStr.toLowerCase();
21      if (lower.endsWith("tb") || lower.endsWith("t")) return Math.pow(1024, 4);
22      if (lower.endsWith("gb") || lower.endsWith("g")) return Math.pow(1024, 3);
23      if (lower.endsWith("mb") || lower.endsWith("m")) return Math.pow(1024, 2);
24      if (lower.endsWith("kb") || lower.endsWith("k")) return Math.pow(1024, 1);
25      return 1;
26    };
27  
28    getNumericValue = (valueStr) => {
29      try {
30        const num = valueStr.match(/\d+/g);
31        const result = parseInt(num);
32        if (isNaN(result) || !isFinite(result)) {
33          throw new Error("Invalid input received.");
34        }
35        return result;
36      } catch (error) {
37        console.log("Failed to parse input: " + error.message);
38        throw error;
39      }
40    };
41  
42    promptForValueStr = async (promptMessage) => {
43      return this.uiService.askPrompt(promptMessage);
44    };
45  }