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/ * *
* @ author n1474335 [ n1474335 @ gmail . com ]
* @ copyright Crown Copyright 2016
* @ license Apache - 2.0
* /
import Operation from "../Operation" ;
import moment from "moment-timezone" ;
import { UNITS } from "../lib/DateTime" ;
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import OperationError from "../errors/OperationError" ;
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/ * *
* To UNIX Timestamp operation
* /
class ToUNIXTimestamp extends Operation {
/ * *
* ToUNIXTimestamp constructor
* /
constructor ( ) {
super ( ) ;
this . name = "To UNIX Timestamp" ;
this . module = "Default" ;
this . description = "Parses a datetime string in UTC and returns the corresponding UNIX timestamp.<br><br>e.g. <code>Mon 1 January 2001 11:00:00</code> becomes <code>978346800</code><br><br>A UNIX timestamp is a 32-bit value representing the number of seconds since January 1, 1970 UTC (the UNIX epoch)." ;
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this . infoURL = "https://wikipedia.org/wiki/Unix_time" ;
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this . inputType = "string" ;
this . outputType = "string" ;
this . args = [
{
"name" : "Units" ,
"type" : "option" ,
"value" : UNITS
} ,
{
"name" : "Treat as UTC" ,
"type" : "boolean" ,
"value" : true
} ,
{
"name" : "Show parsed datetime" ,
"type" : "boolean" ,
"value" : true
}
] ;
}
/ * *
* @ param { string } input
* @ param { Object [ ] } args
* @ returns { string }
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*
* @ throws { OperationError } if unit unrecognised
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* /
run ( input , args ) {
const [ units , treatAsUTC , showDateTime ] = args ,
d = treatAsUTC ? moment . utc ( input ) : moment ( input ) ;
let result = "" ;
if ( units === "Seconds (s)" ) {
result = d . unix ( ) ;
} else if ( units === "Milliseconds (ms)" ) {
result = d . valueOf ( ) ;
} else if ( units === "Microseconds (μs)" ) {
result = d . valueOf ( ) * 1000 ;
} else if ( units === "Nanoseconds (ns)" ) {
result = d . valueOf ( ) * 1000000 ;
} else {
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throw new OperationError ( "Unrecognised unit" ) ;
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}
return showDateTime ? ` ${ result } ( ${ d . tz ( "UTC" ) . format ( "ddd D MMMM YYYY HH:mm:ss" ) } UTC) ` : result . toString ( ) ;
}
}
export default ToUNIXTimestamp ;