-module(go_over@warning).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([adv_to_warning/2, retired_to_warning/2, format_as_string/1]).
-export_type([warning_reason_code/0, dep/0, warning/0]).

-type warning_reason_code() :: retired | vulnerable.

-type dep() :: direct | indirect.

-type warning() :: {warning,
        binary(),
        binary(),
        binary(),
        warning_reason_code(),
        binary(),
        dep()}.

-spec warning_reason_code_as_string(warning_reason_code()) -> binary().
warning_reason_code_as_string(W) ->
    case W of
        retired ->
            <<"Retired"/utf8>>;

        vulnerable ->
            <<"Vulnerable"/utf8>>
    end.

-spec dep_code_as_string(dep()) -> binary().
dep_code_as_string(D) ->
    case D of
        direct ->
            <<"Direct"/utf8>>;

        indirect ->
            <<"Indirect dependency"/utf8>>
    end.

-spec adv_to_warning(
    go_over@packages:package(),
    list(go_over@advisories:advisory())
) -> warning().
adv_to_warning(Pkg, Adv) ->
    {warning,
        erlang:element(2, Pkg),
        erlang:element(4, Pkg),
        begin
            _pipe = Adv,
            _pipe@1 = gleam@list:map(_pipe, fun(A) -> erlang:element(6, A) end),
            gleam@string:join(_pipe@1, <<"\n"/utf8>>)
        end,
        vulnerable,
        begin
            _pipe@2 = Adv,
            _pipe@3 = gleam@list:map(
                _pipe@2,
                fun(A@1) -> erlang:element(4, A@1) end
            ),
            gleam@string:join(_pipe@3, <<"\n"/utf8>>)
        end,
        direct}.

-spec retired_to_warning(
    go_over@packages:package(),
    gleam@hexpm:release_retirement()
) -> warning().
retired_to_warning(Pkg, Ret) ->
    {warning,
        erlang:element(2, Pkg),
        erlang:element(4, Pkg),
        go_over@retired:print_ret(Ret),
        retired,
        <<"package-retired"/utf8>>,
        direct}.

-spec format_as_string(warning()) -> binary().
format_as_string(W) ->
    Str = begin
        _pipe = [<<"Package: "/utf8, (erlang:element(2, W))/binary>>,
            <<"Version: "/utf8, (erlang:element(3, W))/binary>>,
            <<"WarningReason: "/utf8,
                (warning_reason_code_as_string(erlang:element(5, W)))/binary>>,
            <<"Dependency Type: "/utf8,
                (dep_code_as_string(erlang:element(7, W)))/binary>>,
            <<"Severity: "/utf8,
                (gleam@string:lowercase(erlang:element(6, W)))/binary>>,
            <<"Reason: "/utf8, (erlang:element(4, W))/binary>>],
        gleam@string:join(_pipe, <<"\n"/utf8>>)
    end,
    case gleam@string:lowercase(erlang:element(6, W)) of
        <<"critical"/utf8>> ->
            go_over@print:format_critical(Str);

        <<"high"/utf8>> ->
            go_over@print:format_high(Str);

        <<"moderate"/utf8>> ->
            go_over@print:format_moderate(Str);

        <<"low"/utf8>> ->
            go_over@print:format_low(Str);

        _ ->
            go_over@print:format_warning(Str)
    end.