Add UI component for export command

Author: Schmidely Stéphane

src/utils/commands/export/ui.ts

@@ -0,0 +1,107 @@
+import { prompt, Question } from 'inquirer'
+import * as moment from 'moment'
+
+import { DateValidator } from './validators'
+
+export default class ExportUi {
+  constructor() {}
+
+  /**
+   * Ask user for missing flags
+   */
+  public async askMissingFlags(
+    missingFlags: Array<string>, availableFlagsValues: any
+  ) {
+    const questions = missingFlags.map(el => {
+      let input = null
+      switch (el) {
+        case 'format':
+          input = this.askFormat(availableFlagsValues.formats)
+          break
+        case 'project':
+          input = this.askProject(availableFlagsValues.projects)
+          break
+        case 'from':
+          input = this.askStartDate()
+          break
+        case 'to':
+          input = this.askEndDate()
+          break
+        default:
+          // FIXME handle error case
+          // this.error(`You should not be here with ${el}`, { exit: 3 })
+      }
+      return input
+    })
+
+    const answers = await this.askUser(questions)
+    return answers
+  }
+
+  /**
+   * InquirerJS question for output format
+   * 'json' or 'csv' are currently supported
+   */
+  private askFormat(availableFormats: Array<string>): Question {
+    const choices = availableFormats.map(format => {
+      return { name: format.toUpperCase(), value: format }
+    })
+    return {
+      type: 'list',
+      name: 'format',
+      message: 'Which output format do you want ?',
+      default: choices[0].value,
+      choices
+    }
+  }
+
+  /**
+   * InquirerJS question for project
+   */
+  private askProject(availableProjects: Array<string>): Question {
+    return {
+      type: 'list',
+      name: 'project',
+      message: 'Which project ?',
+      default: availableProjects[0],
+      choices: availableProjects,
+      pageSize: availableProjects.length
+    }
+  }
+
+  /**
+   * InquirerJS question for start date export
+   * valide ! (use of moment.js)
+   */
+  private askStartDate(): Question {
+    return {
+      type: 'input',
+      name: 'from',
+      message: 'From which date (YYYY-MM-DD) ?',
+      default: moment().startOf('month').format('YYYY-MM-DD'),
+      validate: new DateValidator().isValid
+    }
+  }
+
+  /**
+   * InquirerJS question for end date export
+   */
+  private askEndDate(): Question {
+    return {
+      type: 'input',
+      name: 'to',
+      message: 'Until which date (YYYY-MM-DD) ?',
+      default: moment().endOf('month').format('YYYY-MM-DD'),
+      validate: new DateValidator().isValid
+    }
+  }
+
+  /**
+   * Ask user input with Inquirer.js
+   *
+   * @see https://github.com/SBoudrias/Inquirer.js
+   */
+  private async askUser(questions: Array<Question>) {
+    return prompt(questions)
+  }
+}