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-module(str).
-compile(no_auto_import).
-include_lib("eunit/include/eunit.hrl").
-export([length/1, lowercase/1, uppercase/1, reverse/1, split/2, replace/3, from_int/1, parse_int/1, base_from_int/2, from_float/1]).
length(A) ->
string:length(A).
-ifdef(TEST).
length_test() ->
expect:equal(length(<<"ß↑e̊">>), 3),
expect:equal(length(<<"Gleam">>), 5),
expect:equal(length(<<"">>), 0).
-endif.
lowercase(A) ->
string:lowercase(A).
-ifdef(TEST).
lowercase_test() ->
expect:equal(lowercase(<<"Gleam">>), <<"gleam">>).
-endif.
uppercase(A) ->
string:uppercase(A).
-ifdef(TEST).
uppercase_test() ->
expect:equal(uppercase(<<"Gleam">>), <<"GLEAM">>).
-endif.
reverse(String) ->
iodata:to_string(iodata:reverse(iodata:new(String))).
-ifdef(TEST).
reverse_test() ->
expect:equal(reverse(<<"Gleam">>), <<"maelG">>).
-endif.
split(String, On) ->
list:map(iodata:split(iodata:new(String), On), fun iodata:to_string/1).
-ifdef(TEST).
split_test() ->
expect:equal(split(<<"Gleam,Erlang,Elixir">>, <<",">>),
[<<"Gleam">>, <<"Erlang">>, <<"Elixir">>]),
expect:equal(split(<<"Gleam, Erlang,Elixir">>, <<", ">>),
[<<"Gleam">>, <<"Erlang,Elixir">>]).
-endif.
replace(String, Pattern, With) ->
iodata:to_string(iodata:replace(iodata:new(String), Pattern, With)).
-ifdef(TEST).
replace_test() ->
expect:equal(replace(<<"Gleam,Erlang,Elixir">>, <<",">>, <<"++">>),
<<"Gleam++Erlang++Elixir">>).
-endif.
from_int(A) ->
erlang:integer_to_binary(A).
-ifdef(TEST).
from_int_test() ->
expect:equal(from_int(123), <<"123">>),
expect:equal(from_int(-123), <<"-123">>),
expect:equal(from_int(123), <<"123">>).
-endif.
parse_int(A) ->
gleam__stdlib:parse_int(A).
-ifdef(TEST).
parse_int_test() ->
expect:equal(parse_int(<<"123">>), {ok, 123}),
expect:equal(parse_int(<<"-123">>), {ok, -123}),
expect:equal(parse_int(<<"0123">>), {ok, 123}),
expect:equal(parse_int(<<"">>), {error, parse_error}),
expect:equal(parse_int(<<"what">>), {error, parse_error}),
expect:equal(parse_int(<<"1.23">>), {error, parse_error}).
-endif.
base_from_int(A, B) ->
erlang:integer_to_binary(A, B).
-ifdef(TEST).
base_from_int_test() ->
expect:equal(base_from_int(100, 16), <<"64">>),
expect:equal(base_from_int(-100, 16), <<"-64">>).
-endif.
from_float(F) ->
iodata:to_string(iodata:from_float(F)).
-ifdef(TEST).
from_float_test() ->
expect:equal(from_float(123.0), <<"123.0">>),
expect:equal(from_float(-8.1), <<"-8.1">>).
-endif.
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