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ar_pricing: use calendar:system_time_to_universal_time/2 #842

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ar_pricing: use calendar:system_time_to_universal_time/2 #842

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11 changes: 2 additions & 9 deletions apps/arweave/src/ar_pricing.erl
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Original file line number Diff line number Diff line change
Expand Up @@ -573,13 +573,13 @@ get_perpetual_gb_cost(Init, Height) ->
%% @doc Return the cost in USD of storing 1 GB per year at the given time.
-spec get_gb_cost_per_year_at_timestamp(Timestamp::integer(), Height::nonegint()) -> usd().
get_gb_cost_per_year_at_timestamp(Timestamp, Height) ->
Datetime = system_time_to_universal_time(Timestamp, seconds),
Datetime = calendar:system_time_to_universal_time(Timestamp, second),
get_gb_cost_per_year_at_datetime(Datetime, Height).

%% @doc Return the cost in USD of storing 1 GB per average block time at the given time.
-spec get_gb_cost_per_block_at_timestamp(integer(), nonegint()) -> usd().
get_gb_cost_per_block_at_timestamp(Timestamp, Height) ->
Datetime = system_time_to_universal_time(Timestamp, seconds),
Datetime = calendar:system_time_to_universal_time(Timestamp, second),
get_gb_cost_per_block_at_datetime(Datetime, Height).

%% @doc Return the cost in USD of storing 1 GB per year.
Expand Down Expand Up @@ -692,13 +692,6 @@ fraction_of_year(PrevY, NextY, {{Y, Mo, D}, {H, Mi, S}}, Height) ->
(Now - Start) / (End - Start)
end.

%% TODO Use calendar:system_time_to_universal_time/2 in Erlang OTP-21.
system_time_to_universal_time(Time, TimeUnit) ->
Seconds = erlang:convert_time_unit(Time, TimeUnit, seconds),
DaysFrom0To1970 = 719528,
SecondsPerDay = 86400,
calendar:gregorian_seconds_to_datetime(Seconds + (DaysFrom0To1970 * SecondsPerDay)).

recalculate_usd_to_ar_rate2(#block{ height = PrevHeight } = B) ->
case is_price_adjustment_height(PrevHeight + 1) of
false ->
Expand Down