[DATETIME]: added basic functionality

Signed-off-by: ashish <[email protected]>

Author: pateash

README.md

@@ -127,7 +127,7 @@ OPTIONS
   -n, --name=name  name to print
 ```
 
-_See code: [src/commands/date.ts](https://github.com/codingtools/cdt/blob/v0.1.4/src/commands/date.ts)_
+_See code: [src/commands/datetime.ts](https://github.com/codingtools/cdt/blob/v0.1.4/src/commands/date.ts)_
 
 ## `cdt hash [STRING]`
 

package-lock.json

@@ -24,6 +24,7 @@
     "jshashes": "^1.0.7",
     "minify": "^4.1.3",
     "moment": "^2.24.0",
+    "moment-timezone": "^0.5.27",
     "nyc": "^14.1.1",
     "ora": "^4.0.2",
     "signale": "^1.4.0",

package.json

@@ -0,0 +1,87 @@
+import {Command, flags} from '@oclif/command'
+import * as moment from 'moment'
+
+// @ts-ignore
+moment.suppressDeprecationWarnings = true
+
+import Logger from '../utilities/logger'
+
+export default class Datetime extends Command {
+  static description = 'Date and Time utility'
+
+  static defaultFormat = 'Do MMMM YYYY, h:m:s A, Z UTC'
+
+  static flags = {
+    help: flags.help({char: 'h'}),
+    date: flags.string({char: 'd', description: 'Datetime provided, could also be passed without -d flag'}),
+    format: flags.string({char: 'f', description: 'Datetime format'}),
+    timezone: flags.string({char: 'z', description: 'Timezone for Datetime'}),
+    locale: flags.string({char: 'l', description: 'Locale, default: en'}),
+  }
+
+  static args = [{name: 'date'}]
+
+  //arguments 'date' ( default now() ), 'format' ( default 'dd-MMM-YYYY' ), 'timezone' (default user local)
+  async run() {
+    const {args, flags} = this.parse(Datetime)
+
+    args.date = this.getDateString(flags, args) // getting date object
+    args.locale = this.getLocale(flags, args) // getting date object
+    args.format = this.getFormat(flags, args) // getting date object
+
+    Logger.info(this, `Input String: ${args.date}`)
+    Logger.info(this, `Locale: ${args.locale}`)
+    Logger.info(this, `Format: ${args.format}`)
+
+    args.momentDate = this.getMomentDate(flags, args)
+    this.checkParameters(flags, args)
+
+    Logger.success(this, `${args.momentDate.format(args.format)}`)
+
+  }
+
+  // tslint:disable-next-line:no-unused
+  private getLocale(flags: any, args: any) {
+    if (flags.locale)
+      return flags.locale
+    else
+      return 'en'
+  }
+
+  private getDateString(flags: any, args: any) {
+    let dateString: string | undefined
+
+    if (args.date)
+      dateString = args.date
+    else if (flags.date)
+      dateString = flags.date
+    else
+      dateString = undefined // will be set to  now()
+
+    return dateString
+  }
+
+  private getMomentDate(flags: any, args: any) {
+    let date: moment.Moment
+
+    if (args.date)
+      date = moment(args.date)
+    else
+      date = moment([]) // return now() if args.date is undefined
+
+    // set locale
+    date.locale(flags.locale)
+    return date
+  }
+
+  // tslint:disable-next-line:no-unused
+  private checkParameters(flags: any, args: any) {
+    if (!args.momentDate.isValid())
+      Logger.error(this, 'Invalid Date String Passed')
+  }
+
+  // tslint:disable-next-line:no-unused
+  private getFormat(flags: any, args: any) {
+    return flags.format ? flags.format : Datetime.defaultFormat
+  }
+}

src/commands/date.ts

@@ -0,0 +1,55 @@
+import {expect, test} from '@oclif/test'
+
+describe('datetime', () => {
+  test
+    .stdout()
+    .command(['datetime', '01-Jul-2019'])
+    .it('If locale is not given, default - en', ctx => {
+      expect(ctx.stdout).to.contain('1st July 2019, 12:0:0 AM, +05:30 UTC')
+    })
+
+  test
+    .stdout()
+    .command(['datetime', '01-Jul-2019', '-l', 'fr'])
+    .it('If locale is given for french', ctx => {
+      expect(ctx.stdout).to.contain('1er juillet 2019, 12:0:0 AM, +05:30 UTC')
+    })
+
+  test
+    .stdout()
+    .command(['datetime', '01-Jul-2019', '-l', 'hi'])
+    .it('If locale is given for hindi', ctx => {
+      expect(ctx.stdout).to.contain('१ जुलाई २०१९, १२:०:० रात, +०५:३० UTC')
+    })
+
+  test
+    .stdout()
+    .command(['datetime', 'not a real date'])
+    .exit(0)
+    .it('Invalid Datetime or Datetime format with args', ctx => {
+      expect(ctx.stdout).to.contain('Invalid Datetime or Datetime format')
+    })
+
+  test
+    .stdout()
+    .command(['datetime', '20190501', '-f', 'DD-MM-YYYY'])
+    .it('Format Date with a valid Format', ctx => {
+      expect(ctx.stdout).to.contain('01-05-2019')
+    })
+
+  test
+    .stdout()
+    .command(['datetime', '201901d'])
+    .exit(0)
+    .it('Invalid Date passed', ctx => {
+      expect(ctx.stdout).to.contain('Invalid Date String Passed')
+    })
+
+  test
+    .stdout()
+    .command(['datetime', '-d', 'not a real date'])
+    .exit(0)
+    .it('Invalid Datetime or Datetime format with flags', ctx => {
+      expect(ctx.stdout).to.contain('Invalid Datetime or Datetime format')
+    })
+})