-module(datadog_query@ast).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/datadog_query/ast.gleam").
-export([comparison_op_to_string/1, to_string/1]).
-export_type([comparison_op/0, filter/0]).

-if(?OTP_RELEASE >= 27).
-define(MODULEDOC(Str), -moduledoc(Str)).
-define(DOC(Str), -doc(Str)).
-else.
-define(MODULEDOC(Str), -compile([])).
-define(DOC(Str), -compile([])).
-endif.

-type comparison_op() :: gt | gte | lt | lte.

-type filter() :: {tag, binary(), binary()} |
    {negated_tag, binary(), binary()} |
    {tag_comparison, binary(), comparison_op(), binary()} |
    {tag_regex, binary(), binary()} |
    {tag_in, binary(), list(binary())} |
    {tag_not_in, binary(), list(binary())} |
    {'and', list(filter())} |
    {'or', list(filter())} |
    {'not', filter()} |
    wildcard.

-file("src/datadog_query/ast.gleam", 78).
-spec precedence_not() -> integer().
precedence_not() ->
    3.

-file("src/datadog_query/ast.gleam", 74).
-spec precedence_and() -> integer().
precedence_and() ->
    2.

-file("src/datadog_query/ast.gleam", 70).
?DOC(
    " Precedence levels used to decide when to parenthesize a child during\n"
    " rendering. Higher = binds tighter. The numbers themselves don't matter\n"
    " — only relative ordering.\n"
).
-spec precedence_or() -> integer().
precedence_or() ->
    1.

-file("src/datadog_query/ast.gleam", 82).
-spec precedence_of(filter()) -> integer().
precedence_of(Filter) ->
    case Filter of
        {'or', _} ->
            precedence_or();

        {'and', _} ->
            precedence_and();

        {'not', _} ->
            precedence_not();

        _ ->
            4
    end.

-file("src/datadog_query/ast.gleam", 58).
-spec comparison_op_to_string(comparison_op()) -> binary().
comparison_op_to_string(Op) ->
    case Op of
        gt ->
            <<">"/utf8>>;

        gte ->
            <<">="/utf8>>;

        lt ->
            <<"<"/utf8>>;

        lte ->
            <<"<="/utf8>>
    end.

-file("src/datadog_query/ast.gleam", 97).
-spec render_with_parens(filter(), integer()) -> binary().
render_with_parens(Filter, Parent_prec) ->
    case precedence_of(Filter) < Parent_prec of
        true ->
            <<<<"("/utf8, (to_string(Filter))/binary>>/binary, ")"/utf8>>;

        false ->
            to_string(Filter)
    end.

-file("src/datadog_query/ast.gleam", 91).
-spec render_binary(list(filter()), binary(), integer()) -> binary().
render_binary(Filters, Sep, Parent_prec) ->
    _pipe = Filters,
    _pipe@1 = gleam@list:map(
        _pipe,
        fun(F) -> render_with_parens(F, Parent_prec) end
    ),
    gleam@string:join(_pipe@1, Sep).

-file("src/datadog_query/ast.gleam", 34).
-spec to_string(filter()) -> binary().
to_string(Filter) ->
    case Filter of
        {tag, Name, Value} ->
            <<<<Name/binary, ":"/utf8>>/binary,
                (datadog_query@quote:value(Value))/binary>>;

        {negated_tag, Name@1, Value@1} ->
            <<<<<<"!"/utf8, Name@1/binary>>/binary, ":"/utf8>>/binary,
                (datadog_query@quote:value(Value@1))/binary>>;

        {tag_comparison, Name@2, Op, Value@2} ->
            <<<<<<Name@2/binary, ":"/utf8>>/binary,
                    (comparison_op_to_string(Op))/binary>>/binary,
                Value@2/binary>>;

        {tag_regex, Name@3, Pattern} ->
            <<<<Name@3/binary, ":~"/utf8>>/binary,
                (datadog_query@quote:value(Pattern))/binary>>;

        {tag_in, Name@4, Values} ->
            <<<<<<Name@4/binary, " IN ("/utf8>>/binary,
                    (begin
                        _pipe = Values,
                        _pipe@1 = gleam@list:map(
                            _pipe,
                            fun datadog_query@quote:value/1
                        ),
                        gleam@string:join(_pipe@1, <<", "/utf8>>)
                    end)/binary>>/binary,
                ")"/utf8>>;

        {tag_not_in, Name@5, Values@1} ->
            <<<<<<Name@5/binary, " NOT IN ("/utf8>>/binary,
                    (begin
                        _pipe@2 = Values@1,
                        _pipe@3 = gleam@list:map(
                            _pipe@2,
                            fun datadog_query@quote:value/1
                        ),
                        gleam@string:join(_pipe@3, <<", "/utf8>>)
                    end)/binary>>/binary,
                ")"/utf8>>;

        {'and', Filters} ->
            render_binary(Filters, <<" AND "/utf8>>, precedence_and());

        {'or', Filters@1} ->
            render_binary(Filters@1, <<" OR "/utf8>>, precedence_or());

        {'not', Inner} ->
            <<"NOT "/utf8,
                (render_with_parens(Inner, precedence_not()))/binary>>;

        wildcard ->
            <<"*"/utf8>>
    end.