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using System;
using System.Collections.Generic;
using Marina.Domain.Interfaces;
namespace Marina.Domain {
public class LeaseDurations {
public static readonly ILeaseDuration Daily = new LeaseDuration( "Daily", 1, 1 );
public static readonly ILeaseDuration Weekly = new LeaseDuration( "Weekly", 2, 7 );
public static readonly ILeaseDuration Monthly = new LeaseDuration( "Monthly", 3, 30 );
public static readonly ILeaseDuration Yearly = new LeaseDuration( "Yearly", 4, 365 );
private static readonly ILeaseDuration NoDuration = new LeaseDuration( "No Duration", -1, 0 );
private static readonly ILeaseDuration UnknownDuration = new LeaseDuration( "Unknown", -1, 0 );
private class LeaseDuration : DomainObject, ILeaseDuration {
private readonly int _days;
private readonly string _name;
public LeaseDuration( string name, long id, int days ) : base( id ) {
_days = days;
_name = name;
}
public DateTime CalculateExpiryDateFrom( DateTime startDate ) {
return startDate.AddDays( _days ).Date.AddHours( 11 );
}
public string Name() {
return _name;
}
public bool IsSatisfiedBy( IDateRange range ) {
TimeSpan daysInRange = range.End( ).Subtract( range.Start( ) );
return _days <= daysInRange.Days;
}
}
public static ILeaseDuration FindFor( DateTime startDate, DateTime endDate ) {
foreach ( ILeaseDuration duration in AllDurations( ) ) {
if ( duration.IsSatisfiedBy( new DateRange( startDate, endDate ) ) ) {
return duration;
}
}
return NoDuration;
}
private static IEnumerable< ILeaseDuration > AllDurations() {
yield return Yearly;
yield return Monthly;
yield return Weekly;
yield return Daily;
}
public static ILeaseDuration FindBy( string duration ) {
foreach ( ILeaseDuration leaseDuration in AllDurations( ) ) {
if ( string.Compare( leaseDuration.Name( ), duration, true ) == 0 ) {
return leaseDuration;
}
}
return UnknownDuration;
}
}
}
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