-module(cel@interpreter).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch]).

-export([default_context/0, new/1, execute/2]).
-export_type([program/0]).

-opaque program() :: {program, cel@parser:expression()}.

-file("/Users/jonas/src/personal/cel-gleam/src/cel/interpreter.gleam", 14).
-spec default_context() -> cel@interpreter@context:context().
default_context() ->
    _pipe = cel@interpreter@context:empty(),
    _pipe@1 = cel@interpreter@context:insert_function(
        _pipe,
        <<"filter"/utf8>>,
        fun cel@interpreter@function:filter/1
    ),
    _pipe@2 = cel@interpreter@context:insert_function(
        _pipe@1,
        <<"map"/utf8>>,
        fun cel@interpreter@function:map/1
    ),
    _pipe@3 = cel@interpreter@context:insert_function(
        _pipe@2,
        <<"all"/utf8>>,
        fun cel@interpreter@function:all/1
    ),
    _pipe@4 = cel@interpreter@context:insert_function(
        _pipe@3,
        <<"size"/utf8>>,
        fun cel@interpreter@function:size/1
    ),
    _pipe@5 = cel@interpreter@context:insert_function(
        _pipe@4,
        <<"has"/utf8>>,
        fun cel@interpreter@function:has/1
    ),
    _pipe@6 = cel@interpreter@context:insert_function(
        _pipe@5,
        <<"exists"/utf8>>,
        fun cel@interpreter@function:exists/1
    ),
    cel@interpreter@context:insert_function(
        _pipe@6,
        <<"exists_one"/utf8>>,
        fun cel@interpreter@function:exists_one/1
    ).

-file("/Users/jonas/src/personal/cel-gleam/src/cel/interpreter.gleam", 25).
-spec new(binary()) -> {ok, program()} | {error, cel@parser:error()}.
new(Source) ->
    gleam@result:map(
        cel@parser:parse(Source),
        fun(Parsed) -> {program, Parsed} end
    ).

-file("/Users/jonas/src/personal/cel-gleam/src/cel/interpreter.gleam", 30).
-spec execute(program(), cel@interpreter@context:context()) -> {ok,
        cel@interpreter@value:value()} |
    {error, cel@interpreter@error:execution_error()}.
execute(Program, Ctx) ->
    cel@interpreter@evaluate:evaluate_expr(erlang:element(2, Program), Ctx).