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turniere-backend
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This commit is contained in:
Tobias Huber 2025-03-02 13:22:20 +01:00
parent 5a7ff67e73
commit fdfea9100d
1 changed files with 4 additions and 0 deletions
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4
app/services/group_stage_service.rb
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@ -139,12 +139,16 @@ class GroupStageService
# @return [Array] the teams advancing from the group stage
def handle_special_case(teams_per_group_ranked)
# transpose the array to group first and second places together
# e.g. [[1, 2, 3], [4, 5, 6]] to [[1, 4], [2, 5], [3, 6]]
teams_per_group_ranked_transposed = teams_per_group_ranked.transpose
first_places = teams_per_group_ranked_transposed[0]
second_places = teams_per_group_ranked_transposed[1]
# split the second places in half and place the second half at the beginning
# e.g. [1, 2, 3, 4, 5, 6] to [4, 5, 6, 1, 2, 3]
mid = second_places.length / 2
second_places_new_order = second_places[mid..-1] + second_places[0..mid]
# zip the first and second places together
# e.g. [1, 2, 3], [a, b, c] to [1, a, 2, b, 3, c]
first_places.zip(second_places_new_order).flatten
end