Count streaks or consecutive repeat of values DAX - powerbi

Question

I have a table that is quite simple:
User
Date
Status
John
May 2021
Success
Doe
May 2021
Fail
John
Aug 2021
Fail
Doe
Aug 2021
Fail
Doe
Sep 2021
Success
Doe
Oct 2021
Success
John
OCt 2021
Fail
I want to count how many times a user fails repeatedly but reset the count when it succeeds.
In the example above I would want to add a column like this :
User
Date
Status
Streak
John
May 2021
Success
0
Doe
May 2021
Fail
0
John
Aug 2021
Fail
0
Doe
Aug 2021
Fail
1
Doe
Sep 2021
Success
0
Doe
Oct 2021
Success
0
John
OCt 2021
Fail
1
Now this streak count would have to increase even if the user did not appear in a month as the example shown. I can not use power query and my main concern is the discrepancy in dates since sometimes users can have a streak since they only got tested months apart. and so on.

Answer 1

How about this?
Table.AddColumn(
#"Previous Step",
"Streak",
(r) => if r[Status] = "Fail"
then List.Count(
List.LastN(
Table.SelectRows(
#"Previous Step",
each [User] = r[User] and [Date] < r[Date]
)[Status],
each _ = "Fail"
)
)
else 0,
Int64.Type
)
If the [Status] is "Fail", then it will take the table from the #"Previous Step" and Table.SelectRows just the rows where the [User] is the same as in the current row and the [Date] is before the date in the current row and return just the [Status] column from that filtered table. Treating this single column as a list, it then takes the List.LastN occurrences of "Fail" from that list and does a List.Count of how many of those there are.

Answer 2

can you add conditional column ?
if status = success new_column = 0 , like this.