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/*
* Copyright (c) 2020-2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Assertions.h>
#include <AK/DeprecatedString.h>
#include <AK/NumberFormat.h>
#include <AK/NumericLimits.h>
#include <AK/StringView.h>
namespace AK {
// FIXME: Remove this hackery once printf() supports floats.
static DeprecatedString number_string_with_one_decimal(u64 number, u64 unit, StringView suffix)
{
constexpr auto max_unit_size = NumericLimits<u64>::max() / 10;
VERIFY(unit < max_unit_size);
auto integer_part = number / unit;
auto decimal_part = (number % unit) * 10 / unit;
return DeprecatedString::formatted("{}.{} {}", integer_part, decimal_part, suffix);
}
DeprecatedString human_readable_quantity(u64 quantity, HumanReadableBasedOn based_on, StringView unit)
{
u64 size_of_unit = based_on == HumanReadableBasedOn::Base2 ? 1024 : 1000;
constexpr auto unit_prefixes = AK::Array { "", "K", "M", "G", "T", "P", "E" };
auto full_unit_suffix = [&](int index) {
auto binary_infix = (based_on == HumanReadableBasedOn::Base2 && index != 0) ? "i"sv : ""sv;
return DeprecatedString::formatted("{}{}{}",
unit_prefixes[index], binary_infix, unit);
};
auto size_of_current_unit = size_of_unit;
if (quantity < size_of_unit)
return DeprecatedString::formatted("{} {}", quantity, full_unit_suffix(0));
for (size_t i = 1; i < unit_prefixes.size() - 1; i++) {
auto suffix = full_unit_suffix(i);
if (quantity < size_of_unit * size_of_current_unit) {
return number_string_with_one_decimal(quantity, size_of_current_unit, suffix);
}
size_of_current_unit *= size_of_unit;
}
return number_string_with_one_decimal(quantity,
size_of_current_unit, full_unit_suffix(unit_prefixes.size() - 1));
}
DeprecatedString human_readable_size(u64 size, HumanReadableBasedOn based_on)
{
return human_readable_quantity(size, based_on, "B"sv);
}
DeprecatedString human_readable_size_long(u64 size)
{
if (size < 1 * KiB)
return DeprecatedString::formatted("{} bytes", size);
else
return DeprecatedString::formatted("{} ({} bytes)", human_readable_size(size), size);
}
DeprecatedString human_readable_time(i64 time_in_seconds)
{
auto days = time_in_seconds / 86400;
time_in_seconds = time_in_seconds % 86400;
auto hours = time_in_seconds / 3600;
time_in_seconds = time_in_seconds % 3600;
auto minutes = time_in_seconds / 60;
time_in_seconds = time_in_seconds % 60;
StringBuilder builder;
if (days > 0)
builder.appendff("{} day{} ", days, days == 1 ? "" : "s");
if (hours > 0)
builder.appendff("{} hour{} ", hours, hours == 1 ? "" : "s");
if (minutes > 0)
builder.appendff("{} minute{} ", minutes, minutes == 1 ? "" : "s");
builder.appendff("{} second{}", time_in_seconds, time_in_seconds == 1 ? "" : "s");
return builder.to_deprecated_string();
}
DeprecatedString human_readable_digital_time(i64 time_in_seconds)
{
auto hours = time_in_seconds / 3600;
time_in_seconds = time_in_seconds % 3600;
auto minutes = time_in_seconds / 60;
time_in_seconds = time_in_seconds % 60;
StringBuilder builder;
if (hours > 0)
builder.appendff("{:02}:", hours);
builder.appendff("{:02}:", minutes);
builder.appendff("{:02}", time_in_seconds);
return builder.to_deprecated_string();
}
}
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