How to filter yesterday and same day of last two weeks in custom filter, and limit these days to week days (Community)

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Last Tested: Jan 21, 2019

if(

#if today is between Monday and Saturday

(mod(diff_days(date(2008,01,01), now()) + 1, 7)+1)>1 AND (mod(diff_days(date(2008,01,01), now()) + 1, 7)+1)<7,

${orders.created_date} = add_days(-1, trunc_days(now())) OR ${orders.created_date} = add_days(-8, trunc_days(now())) OR ${orders.created_date} = add_days(-15, trunc_days(now())),

#if today is Monday

if((mod(diff_days(date(2008,01,01), now()) + 1, 7)+1)=1,

${orders.created_date} = add_days(-3, trunc_days(now())) OR ${orders.created_date} = add_days(-10, trunc_days(now())) OR ${orders.created_date} = add_days(-17, trunc_days(now())),

#if today is Sunday

${orders.created_date} = add_days(-2, trunc_days(now())) OR ${orders.created_date} = add_days(-9, trunc_days(now())) OR ${orders.created_date} = add_days(-16, trunc_days(now())))

)

If today is Tuesday - Saturday, then yesterday will be week days 
If today is Monday, then we have to use -3, -10 and -17 to get Friday 
If today is Sunday, then we have to use -2, -9 and -16 to get Friday