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function updateDate() {
//
// Date.getTime() returns *milliseconds*
//
var this_date = workoutDate( $( '#n_hours' ).val(), $( '#type_hours' ).val() );
$( '#ack_until' ).val( this_date.getTime()/1000 );
//
// Use a asynchronous ajax convert a date to a human string. NB Date.getTime()
// returns *milliseconds*
//
$.ajax( {
url: '/ajax/time_to_s_human/'+this_date.getTime()/1000,
timeout: 1000,
success: function( data ) { $( '#ack_until_text' ).html( "( until "+data+" )" ); },
error: function( a,b,c ) { $( '#ack_until_text' ).html( "( until "+this_date.toString()+" )" ); }
} );
return false;
}
function workoutDate( h, type ) {
n = new Number( h );
n *= 3600 * 1000;
if ( type == null ) {
type = "wallclock" ;
}
var step = 3600 * 1000;
//
// Get the time now, in milliseconds
//
var d = new Date();
var t = d.getTime();
//
// Can't ack longer than a week
//
var maxDate = new Date( d.getTime() + 1000 * 86400 * 8 )
//
// Work out how much time to subtract now
//
while ( n >= 0 && t < maxDate.getTime() ) {
//
// If we're currently OK, and we won't be OK after the next step ( or
// vice-versa ) decrease step size, and try again
//
if ( doTimeTest( t, type ) != doTimeTest( t+step, type ) ) {
//
// Unless we're on the smallest step, try a smaller one.
//
if ( step > 1000 ) {
step /= 60;
} else {
if ( doTimeTest( t, type ) ) n -= step;
t += step;
//
// Set the step size back to an hour
//
step = 3600*1000;
}
continue;
}
//
// Decrease the time by the step size if we're currently OK.
//
if ( doTimeTest( t, type ) ) n -= step;
t += step;
}
//
// Substract any overshoot.
//
if ( n < 0 ) t += n;
//
// Make sure we can't ack alerts too far in the future.
//
return ( t > maxDate.getTime() ? maxDate : new Date( t ) );
}
function fetchDetail( a ) {
// Use a synchronous ajax request to fetch the date.
$.get( '/ajax/alerts_table_alert_detail/'+a,
function( data ) {
$( '#tr_summary_'+a ).after( data );
// Only fetch the data once.
$( '#a_detail_'+a ).attr( "onclick",null ).click( function() { $( '#tr_detail_'+a ).toggle(); return false; } );
} );
return false;
}
//
// This expects its arguments as a time in milliseconds, and a type of "working", "daytime", or something else.
//
function doTimeTest( t, type ) {
var d = new Date( t );
var r = false;
switch ( type ) {
case "working":
r = ( d.getDay() > 0 && d.getDay() < 6 &&
( ( d.getHours() >= 9 && d.getHours() <= 16 ) ||
( d.getHours() == 8 && d.getMinutes() >= 30 )
) );
break;
case "daytime":
r = ( d.getHours() >= 8 && d.getHours() <= 21 );
break;
default:
r = true;
}
return r;
}
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