-module(claude@json@encode).
-compile([no_auto_import, nowarn_unused_vars, nowarn_unused_function, nowarn_nomatch, inline]).
-define(FILEPATH, "src/claude/json/encode.gleam").
-export([tool_choice/1, content_block_param/1, message_param/1, create_params/8]).

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

-file("src/claude/json/encode.gleam", 25).
?DOC(" Encode a Role to its API string representation.\n").
-spec role(claude@types@message:role()) -> gleam@json:json().
role(R) ->
    case R of
        user ->
            gleam@json:string(<<"user"/utf8>>);

        assistant ->
            gleam@json:string(<<"assistant"/utf8>>)
    end.

-file("src/claude/json/encode.gleam", 117).
?DOC(" Encode an image source.\n").
-spec image_source(claude@types@content:image_source()) -> gleam@json:json().
image_source(Src) ->
    case Src of
        {base64_image, Mt, D} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"base64"/utf8>>)},
                    {<<"media_type"/utf8>>, gleam@json:string(Mt)},
                    {<<"data"/utf8>>, gleam@json:string(D)}]
            );

        {url_image, U} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"url"/utf8>>)},
                    {<<"url"/utf8>>, gleam@json:string(U)}]
            )
    end.

-file("src/claude/json/encode.gleam", 131).
?DOC(" Encode a document source.\n").
-spec document_source(claude@types@content:document_source()) -> gleam@json:json().
document_source(Src) ->
    case Src of
        {base64_document, Mt, D} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"base64"/utf8>>)},
                    {<<"media_type"/utf8>>, gleam@json:string(Mt)},
                    {<<"data"/utf8>>, gleam@json:string(D)}]
            );

        {url_document, U} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"url"/utf8>>)},
                    {<<"url"/utf8>>, gleam@json:string(U)}]
            )
    end.

-file("src/claude/json/encode.gleam", 145).
?DOC(" Encode a ToolChoice for the API request.\n").
-spec tool_choice(claude@types@tool:tool_choice()) -> gleam@json:json().
tool_choice(Choice) ->
    case Choice of
        {auto, Dp} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"auto"/utf8>>)},
                    {<<"disable_parallel_tool_use"/utf8>>, gleam@json:bool(Dp)}]
            );

        {any, Dp@1} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"any"/utf8>>)},
                    {<<"disable_parallel_tool_use"/utf8>>,
                        gleam@json:bool(Dp@1)}]
            );

        {specific_tool, N, Dp@2} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"tool"/utf8>>)},
                    {<<"name"/utf8>>, gleam@json:string(N)},
                    {<<"disable_parallel_tool_use"/utf8>>,
                        gleam@json:bool(Dp@2)}]
            );

        no_tools ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"none"/utf8>>)}]
            )
    end.

-file("src/claude/json/encode.gleam", 109).
?DOC(" Encode tool result content.\n").
-spec tool_result_content(claude@types@content:tool_result_content()) -> gleam@json:json().
tool_result_content(C) ->
    case C of
        {string_result, S} ->
            gleam@json:string(S);

        {blocks_result, Blocks} ->
            gleam@json:array(Blocks, fun content_block_param/1)
    end.

-file("src/claude/json/encode.gleam", 47).
?DOC(" Encode a ContentBlockParam for the API request.\n").
-spec content_block_param(claude@types@content:content_block_param()) -> gleam@json:json().
content_block_param(Block) ->
    case Block of
        {text_param, T} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"text"/utf8>>)},
                    {<<"text"/utf8>>, gleam@json:string(T)}]
            );

        {image_param, Src} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"image"/utf8>>)},
                    {<<"source"/utf8>>, image_source(Src)}]
            );

        {document_param, Src@1} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"document"/utf8>>)},
                    {<<"source"/utf8>>, document_source(Src@1)}]
            );

        {tool_use_param, Id, Name, Input} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"tool_use"/utf8>>)},
                    {<<"id"/utf8>>, gleam@json:string(Id)},
                    {<<"name"/utf8>>, gleam@json:string(Name)},
                    {<<"input"/utf8>>,
                        claude_json_ffi:json_string_to_raw(Input)}]
            );

        {tool_result_param, Id@1, C, Err} ->
            Base = [{<<"type"/utf8>>, gleam@json:string(<<"tool_result"/utf8>>)},
                {<<"tool_use_id"/utf8>>, gleam@json:string(Id@1)},
                {<<"content"/utf8>>, tool_result_content(C)}],
            Fields = case Err of
                true ->
                    lists:append(
                        Base,
                        [{<<"is_error"/utf8>>, gleam@json:bool(true)}]
                    );

                false ->
                    Base
            end,
            gleam@json:object(Fields);

        {thinking_param, T@1, S} ->
            gleam@json:object(
                [{<<"type"/utf8>>, gleam@json:string(<<"thinking"/utf8>>)},
                    {<<"thinking"/utf8>>, gleam@json:string(T@1)},
                    {<<"signature"/utf8>>, gleam@json:string(S)}]
            );

        {redacted_thinking_param, D} ->
            gleam@json:object(
                [{<<"type"/utf8>>,
                        gleam@json:string(<<"redacted_thinking"/utf8>>)},
                    {<<"data"/utf8>>, gleam@json:string(D)}]
            );

        {server_tool_use_param, Id@2, Name@1, Input@1} ->
            gleam@json:object(
                [{<<"type"/utf8>>,
                        gleam@json:string(<<"server_tool_use"/utf8>>)},
                    {<<"id"/utf8>>, gleam@json:string(Id@2)},
                    {<<"name"/utf8>>, gleam@json:string(Name@1)},
                    {<<"input"/utf8>>,
                        claude_json_ffi:json_string_to_raw(Input@1)}]
            )
    end.

-file("src/claude/json/encode.gleam", 39).
?DOC(" Encode message content — either a plain string or a list of content blocks.\n").
-spec message_content(claude@types@message:message_content()) -> gleam@json:json().
message_content(C) ->
    case C of
        {string_content, S} ->
            gleam@json:string(S);

        {block_content, Blocks} ->
            gleam@json:array(Blocks, fun content_block_param/1)
    end.

-file("src/claude/json/encode.gleam", 33).
?DOC(" Encode a MessageParam for the API request.\n").
-spec message_param(claude@types@message:message_param()) -> gleam@json:json().
message_param(Msg) ->
    {message_param, R, C} = Msg,
    gleam@json:object(
        [{<<"role"/utf8>>, role(R)}, {<<"content"/utf8>>, message_content(C)}]
    ).

-file("src/claude/json/encode.gleam", 173).
?DOC(
    " Encode the full Messages API request body.\n"
    "\n"
    " Only includes optional fields when they have values.\n"
    " Does not include an empty tools array.\n"
    " Includes stream: true only when stream is True.\n"
).
-spec create_params(
    binary(),
    integer(),
    list(claude@types@message:message_param()),
    claude@types@tool:registry(),
    gleam@option:option(binary()),
    gleam@option:option(claude@types@tool:tool_choice()),
    gleam@option:option(integer()),
    boolean()
) -> gleam@json:json().
create_params(Model, Max_tokens, Messages, Tools, System, Tc, Thinking, Stream) ->
    Fields = [{<<"model"/utf8>>, gleam@json:string(Model)},
        {<<"max_tokens"/utf8>>, gleam@json:int(Max_tokens)},
        {<<"messages"/utf8>>, gleam@json:array(Messages, fun message_param/1)}],
    Fields@1 = case claude@types@tool:is_empty(Tools) of
        true ->
            Fields;

        false ->
            lists:append(
                Fields,
                [{<<"tools"/utf8>>, claude@types@tool:to_json(Tools)}]
            )
    end,
    Fields@2 = case System of
        {some, S} ->
            lists:append(Fields@1, [{<<"system"/utf8>>, gleam@json:string(S)}]);

        none ->
            Fields@1
    end,
    Fields@3 = case Tc of
        {some, C} ->
            lists:append(Fields@2, [{<<"tool_choice"/utf8>>, tool_choice(C)}]);

        none ->
            Fields@2
    end,
    Fields@4 = case Thinking of
        {some, Budget} ->
            lists:append(
                Fields@3,
                [{<<"thinking"/utf8>>,
                        gleam@json:object(
                            [{<<"type"/utf8>>,
                                    gleam@json:string(<<"enabled"/utf8>>)},
                                {<<"budget_tokens"/utf8>>,
                                    gleam@json:int(Budget)}]
                        )}]
            );

        none ->
            Fields@3
    end,
    Fields@5 = case Stream of
        true ->
            lists:append(Fields@4, [{<<"stream"/utf8>>, gleam@json:bool(true)}]);

        false ->
            Fields@4
    end,
    gleam@json:object(Fields@5).