-module(dotenv_conf).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([read_string/2, read_string_or/3, read_int_or/3, read_float_or/3, read_file/2]).
-export_type([env_file_error/0]).

-type env_file_error() :: missing_file |
    invalid_file |
    file_error |
    bad_config |
    missing_var.

-file("/home/pierre/Programming/gleam/dotenv_conf/src/dotenv_conf.gleam", 47).
-spec read_string(
    binary(),
    {ok, gleam@dict:dict(binary(), binary())} | {error, env_file_error()}
) -> {ok, binary()} | {error, env_file_error()}.
read_string(Name, From_file) ->
    case {envoy_ffi:get(Name), From_file} of
        {{ok, Value}, _} ->
            {ok, Value};

        {_, {error, Err}} ->
            {error, Err};

        {_, {ok, Values}} ->
            case gleam_stdlib:map_get(Values, Name) of
                {ok, Value@1} ->
                    {ok, Value@1};

                _ ->
                    {error, missing_var}
            end
    end.

-file("/home/pierre/Programming/gleam/dotenv_conf/src/dotenv_conf.gleam", 66).
-spec read_string_or(
    binary(),
    {ok, gleam@dict:dict(binary(), binary())} | {error, env_file_error()},
    binary()
) -> binary().
read_string_or(Name, From_file, Default) ->
    case read_string(Name, From_file) of
        {ok, Value} ->
            Value;

        _ ->
            Default
    end.

-file("/home/pierre/Programming/gleam/dotenv_conf/src/dotenv_conf.gleam", 81).
-spec read_int_or(
    binary(),
    {ok, gleam@dict:dict(binary(), binary())} | {error, env_file_error()},
    integer()
) -> integer().
read_int_or(Name, From_file, Default) ->
    case read_string(Name, From_file) of
        {error, _} ->
            Default;

        {ok, Value_str} ->
            case gleam_stdlib:parse_int(Value_str) of
                {ok, Value} ->
                    Value;

                _ ->
                    Default
            end
    end.

-file("/home/pierre/Programming/gleam/dotenv_conf/src/dotenv_conf.gleam", 96).
-spec read_float_or(
    binary(),
    {ok, gleam@dict:dict(binary(), binary())} | {error, env_file_error()},
    float()
) -> float().
read_float_or(Name, From_file, Default) ->
    case read_string(Name, From_file) of
        {error, _} ->
            Default;

        {ok, Value_str} ->
            case gleam_stdlib:parse_float(Value_str) of
                {ok, Value} ->
                    Value;

                _ ->
                    Default
            end
    end.

-file("/home/pierre/Programming/gleam/dotenv_conf/src/dotenv_conf.gleam", 139).
-spec parse_config_lines(list(binary()), list({binary(), binary()})) -> {ok,
        gleam@dict:dict(binary(), binary())} |
    {error, env_file_error()}.
parse_config_lines(Lines, Acc) ->
    case Lines of
        [] ->
            {ok, maps:from_list(Acc)};

        [Line | Rest] ->
            case gleam@string:split_once(Line, <<"="/utf8>>) of
                {error, nil} ->
                    {error, bad_config};

                {ok, L} ->
                    parse_config_lines(Rest, [L | Acc])
            end
    end.

-file("/home/pierre/Programming/gleam/dotenv_conf/src/dotenv_conf.gleam", 131).
-spec parse_dotenv_file(binary()) -> {ok, gleam@dict:dict(binary(), binary())} |
    {error, env_file_error()}.
parse_dotenv_file(Content) ->
    _pipe = Content,
    _pipe@1 = gleam@string:trim(_pipe),
    _pipe@2 = gleam@string:replace(_pipe@1, <<"\r\n"/utf8>>, <<"\n"/utf8>>),
    _pipe@3 = gleam@string:split(_pipe@2, <<"\n"/utf8>>),
    parse_config_lines(_pipe@3, []).

-file("/home/pierre/Programming/gleam/dotenv_conf/src/dotenv_conf.gleam", 117).
-spec read_file(
    binary(),
    fun(({ok, gleam@dict:dict(binary(), binary())} | {error, env_file_error()}) -> FQZ)
) -> FQZ.
read_file(Path, Then) ->
    File = case simplifile_erl:is_file(Path) of
        {error, _} ->
            {error, missing_file};

        {ok, false} ->
            {error, invalid_file};

        _ ->
            case simplifile:read(Path) of
                {ok, Content} ->
                    parse_dotenv_file(Content);

                {error, _} ->
                    {error, file_error}
            end
    end,
    Then(File).