-module(anthropic@testing).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/anthropic/testing.gleam").
-export([mock_text_response_body/2, mock_text_response/1, mock_tool_use_response_body/4, mock_tool_use_response/3, mock_error_body/2, mock_error_response/3, mock_auth_error/0, mock_rate_limit_error/0, mock_overloaded_error/0, mock_invalid_request_error/1, fixture_simple_response/0, fixture_conversation_response/0, fixture_tool_use_response/0, fixture_max_tokens_response/0, fixture_stop_sequence_response/0, has_api_key/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.

?MODULEDOC(
    " Testing utilities for Anthropic API client\n"
    "\n"
    " This module provides mock responses, test fixtures, and helpers\n"
    " for testing code that uses the anthropic_gleam library.\n"
).

-file("src/anthropic/testing.gleam", 73).
?DOC(" Build a mock text response body JSON\n").
-spec mock_text_response_body(binary(), binary()) -> binary().
mock_text_response_body(Id, Text) ->
    gleam@json:to_string(
        gleam@json:object(
            [{<<"id"/utf8>>, gleam@json:string(Id)},
                {<<"type"/utf8>>, gleam@json:string(<<"message"/utf8>>)},
                {<<"role"/utf8>>, gleam@json:string(<<"assistant"/utf8>>)},
                {<<"content"/utf8>>,
                    gleam@json:array(
                        [gleam@json:object(
                                [{<<"type"/utf8>>,
                                        gleam@json:string(<<"text"/utf8>>)},
                                    {<<"text"/utf8>>, gleam@json:string(Text)}]
                            )],
                        fun(X) -> X end
                    )},
                {<<"model"/utf8>>,
                    gleam@json:string(<<"claude-sonnet-4-20250514"/utf8>>)},
                {<<"stop_reason"/utf8>>, gleam@json:string(<<"end_turn"/utf8>>)},
                {<<"usage"/utf8>>,
                    gleam@json:object(
                        [{<<"input_tokens"/utf8>>, gleam@json:int(10)},
                            {<<"output_tokens"/utf8>>, gleam@json:int(20)}]
                    )}]
        )
    ).

-file("src/anthropic/testing.gleam", 18).
?DOC(" Create a mock successful text response\n").
-spec mock_text_response(binary()) -> gleam@http@response:response(binary()).
mock_text_response(Text) ->
    _pipe = gleam@http@response:new(200),
    gleam@http@response:set_body(
        _pipe,
        mock_text_response_body(<<"msg_mock_123"/utf8>>, Text)
    ).

-file("src/anthropic/testing.gleam", 105).
?DOC(" Build a mock tool use response body JSON\n").
-spec mock_tool_use_response_body(binary(), binary(), binary(), binary()) -> binary().
mock_tool_use_response_body(Id, Tool_id, Tool_name, _) ->
    gleam@json:to_string(
        gleam@json:object(
            [{<<"id"/utf8>>, gleam@json:string(Id)},
                {<<"type"/utf8>>, gleam@json:string(<<"message"/utf8>>)},
                {<<"role"/utf8>>, gleam@json:string(<<"assistant"/utf8>>)},
                {<<"content"/utf8>>,
                    gleam@json:array(
                        [gleam@json:object(
                                [{<<"type"/utf8>>,
                                        gleam@json:string(<<"tool_use"/utf8>>)},
                                    {<<"id"/utf8>>, gleam@json:string(Tool_id)},
                                    {<<"name"/utf8>>,
                                        gleam@json:string(Tool_name)},
                                    {<<"input"/utf8>>, gleam@json:object([])}]
                            )],
                        fun(X) -> X end
                    )},
                {<<"model"/utf8>>,
                    gleam@json:string(<<"claude-sonnet-4-20250514"/utf8>>)},
                {<<"stop_reason"/utf8>>, gleam@json:string(<<"tool_use"/utf8>>)},
                {<<"usage"/utf8>>,
                    gleam@json:object(
                        [{<<"input_tokens"/utf8>>, gleam@json:int(15)},
                            {<<"output_tokens"/utf8>>, gleam@json:int(25)}]
                    )}]
        )
    ).

-file("src/anthropic/testing.gleam", 24).
?DOC(" Create a mock successful tool use response\n").
-spec mock_tool_use_response(binary(), binary(), binary()) -> gleam@http@response:response(binary()).
mock_tool_use_response(Tool_id, Tool_name, Tool_input) ->
    _pipe = gleam@http@response:new(200),
    gleam@http@response:set_body(
        _pipe,
        mock_tool_use_response_body(
            <<"msg_mock_456"/utf8>>,
            Tool_id,
            Tool_name,
            Tool_input
        )
    ).

-file("src/anthropic/testing.gleam", 146).
?DOC(" Build a mock error body JSON\n").
-spec mock_error_body(binary(), binary()) -> binary().
mock_error_body(Error_type, Message) ->
    gleam@json:to_string(
        gleam@json:object(
            [{<<"type"/utf8>>, gleam@json:string(<<"error"/utf8>>)},
                {<<"error"/utf8>>,
                    gleam@json:object(
                        [{<<"type"/utf8>>, gleam@json:string(Error_type)},
                            {<<"message"/utf8>>, gleam@json:string(Message)}]
                    )}]
        )
    ).

-file("src/anthropic/testing.gleam", 39).
?DOC(" Create a mock error response\n").
-spec mock_error_response(integer(), binary(), binary()) -> gleam@http@response:response(binary()).
mock_error_response(Status_code, Error_type, Message) ->
    _pipe = gleam@http@response:new(Status_code),
    gleam@http@response:set_body(_pipe, mock_error_body(Error_type, Message)).

-file("src/anthropic/testing.gleam", 49).
?DOC(" Create a mock authentication error response\n").
-spec mock_auth_error() -> gleam@http@response:response(binary()).
mock_auth_error() ->
    mock_error_response(
        401,
        <<"authentication_error"/utf8>>,
        <<"Invalid API key"/utf8>>
    ).

-file("src/anthropic/testing.gleam", 54).
?DOC(" Create a mock rate limit error response\n").
-spec mock_rate_limit_error() -> gleam@http@response:response(binary()).
mock_rate_limit_error() ->
    mock_error_response(
        429,
        <<"rate_limit_error"/utf8>>,
        <<"Rate limit exceeded"/utf8>>
    ).

-file("src/anthropic/testing.gleam", 59).
?DOC(" Create a mock overloaded error response\n").
-spec mock_overloaded_error() -> gleam@http@response:response(binary()).
mock_overloaded_error() ->
    mock_error_response(
        529,
        <<"overloaded_error"/utf8>>,
        <<"API is temporarily overloaded"/utf8>>
    ).

-file("src/anthropic/testing.gleam", 64).
?DOC(" Create a mock invalid request error response\n").
-spec mock_invalid_request_error(binary()) -> gleam@http@response:response(binary()).
mock_invalid_request_error(Message) ->
    mock_error_response(400, <<"invalid_request_error"/utf8>>, Message).

-file("src/anthropic/testing.gleam", 166).
?DOC(" A simple text response fixture\n").
-spec fixture_simple_response() -> anthropic@types@request:create_message_response().
fixture_simple_response() ->
    {create_message_response,
        <<"msg_fixture_001"/utf8>>,
        <<"message"/utf8>>,
        assistant,
        [{text_block, <<"Hello! How can I help you today?"/utf8>>}],
        <<"claude-sonnet-4-20250514"/utf8>>,
        {some, end_turn},
        none,
        {usage, 12, 8}}.

-file("src/anthropic/testing.gleam", 180).
?DOC(" A multi-turn conversation response fixture\n").
-spec fixture_conversation_response() -> anthropic@types@request:create_message_response().
fixture_conversation_response() ->
    {create_message_response,
        <<"msg_fixture_002"/utf8>>,
        <<"message"/utf8>>,
        assistant,
        [{text_block,
                <<"Based on our previous conversation, I understand you're asking about Gleam programming."/utf8>>}],
        <<"claude-sonnet-4-20250514"/utf8>>,
        {some, end_turn},
        none,
        {usage, 150, 45}}.

-file("src/anthropic/testing.gleam", 198).
?DOC(" A tool use response fixture\n").
-spec fixture_tool_use_response() -> anthropic@types@request:create_message_response().
fixture_tool_use_response() ->
    {create_message_response,
        <<"msg_fixture_003"/utf8>>,
        <<"message"/utf8>>,
        assistant,
        [{text_block, <<"Let me check the weather for you."/utf8>>},
            {tool_use_block,
                <<"toolu_fixture_001"/utf8>>,
                <<"get_weather"/utf8>>,
                <<"{\"location\":\"San Francisco\",\"unit\":\"celsius\"}"/utf8>>}],
        <<"claude-sonnet-4-20250514"/utf8>>,
        {some, tool_use},
        none,
        {usage, 25, 35}}.

-file("src/anthropic/testing.gleam", 219).
?DOC(" A max tokens response fixture\n").
-spec fixture_max_tokens_response() -> anthropic@types@request:create_message_response().
fixture_max_tokens_response() ->
    {create_message_response,
        <<"msg_fixture_004"/utf8>>,
        <<"message"/utf8>>,
        assistant,
        [{text_block,
                <<"This response was truncated because it reached the maximum token limit..."/utf8>>}],
        <<"claude-sonnet-4-20250514"/utf8>>,
        {some, max_tokens},
        none,
        {usage, 20, 100}}.

-file("src/anthropic/testing.gleam", 237).
?DOC(" A stop sequence response fixture\n").
-spec fixture_stop_sequence_response() -> anthropic@types@request:create_message_response().
fixture_stop_sequence_response() ->
    {create_message_response,
        <<"msg_fixture_005"/utf8>>,
        <<"message"/utf8>>,
        assistant,
        [{text_block, <<"The answer is 42"/utf8>>}],
        <<"claude-sonnet-4-20250514"/utf8>>,
        {some, stop_sequence},
        {some, <<"END"/utf8>>},
        {usage, 15, 5}}.

-file("src/anthropic/testing.gleam", 269).
-spec get_env(binary()) -> {ok, binary()} | {error, nil}.
get_env(Name) ->
    Value = begin
        _pipe = os:getenv(
            unicode:characters_to_list(Name),
            unicode:characters_to_list(<<""/utf8>>)
        ),
        unicode:characters_to_binary(_pipe)
    end,
    case Value of
        <<""/utf8>> ->
            {error, nil};

        V ->
            {ok, V}
    end.

-file("src/anthropic/testing.gleam", 255).
?DOC(" Check if an API key is available for integration tests\n").
-spec has_api_key() -> boolean().
has_api_key() ->
    case get_env(<<"ANTHROPIC_API_KEY"/utf8>>) of
        {ok, Key} ->
            Key /= <<""/utf8>>;

        {error, _} ->
            false
    end.