import { describe, expect, it } from "vitest";
import { importSillyTavernPreset } from "../src/preset/importer.js";
import {
  declarePresetTools,
  extractDeclaredPayload,
} from "../src/preset/tool-declaration.js";

function importRaw(raw: unknown, name: string) {
  return importSillyTavernPreset(raw, { name }).preset;
}

describe("声明式工具（预设数据 → 真 tools）", () => {
  it("从 ToolBindings 的 form 生成 tools", () => {
    const preset = importRaw(
      {
        prompts: [{ identifier: "main", name: "main", role: "system", content: "MAIN" }],
        prompt_order: [
          { character_id: 100001, order: [{ identifier: "main", enabled: true }] },
        ],
        extensions: {
          SPreset: {
            ToolBindings: {
              aaa: {
                enabled: true,
                resolvedName: "game_content",
                form: {
                  name: "game_content",
                  description: "# 你的全部输出应当在此工具内。",
                  parameters: [{ name: "content", type: "string", required: true }],
                },
              },
            },
          },
        },
      },
      "bindings",
    );
    const declared = declarePresetTools(preset);
    expect(declared?.source).toBe("bindings");
    expect(declared?.tools).toHaveLength(1);
    const fn = declared!.tools[0]!.function;
    expect(fn.name).toBe("game_content");
    expect(fn.description).toContain("全部输出");
    expect(fn.parameters).toEqual({
      type: "object",
      properties: { content: { type: "string" } },
      required: ["content"],
    });
    expect(declared?.payloadFields).toEqual(["content"]);
  });

  it("只有伪工具协议条目时从正文取工具名与字段", () => {
    const preset = importRaw(
      {
        prompts: [
          {
            identifier: "guide-sys",
            name: "【ToolCall引导】系统声明",
            role: "system",
            content:
              "调用 %TOOL_NAME% 才能输出正文；执行宿 dispatch_stream_payload_34d98628087f3798。",
          },
          {
            identifier: "guide-field",
            name: "【ToolCall引导】字段说明",
            role: "system",
            content: "stream_target = \"display_stream\"\n正文写在这里。",
          },
        ],
        prompt_order: [
          {
            character_id: 100001,
            order: [
              { identifier: "guide-sys", enabled: true },
              { identifier: "guide-field", enabled: true },
            ],
          },
        ],
      },
      "protocol",
    );
    const declared = declarePresetTools(preset);
    expect(declared?.source).toBe("protocol");
    const fn = declared!.tools[0]!.function;
    expect(fn.name).toBe("dispatch_stream_payload_34d98628087f3798");
    expect(declared?.payloadFields).toContain("display_stream");
    const params = fn.parameters as { properties: Record<string, unknown>; required: string[] };
    expect(Object.keys(params.properties)).toContain("display_stream");
    expect(params.required).toContain("display_stream");
  });

  it("没有工具协议就返回 null", () => {
    const preset = importRaw(
      {
        prompts: [{ identifier: "main", name: "main", role: "system", content: "MAIN" }],
        prompt_order: [
          { character_id: 100001, order: [{ identifier: "main", enabled: true }] },
        ],
      },
      "plain",
    );
    expect(declarePresetTools(preset)).toBeNull();
  });
});

describe("extractDeclaredPayload", () => {
  it("按字段优先级取正文", () => {
    expect(
      extractDeclaredPayload(JSON.stringify({ display_stream: "正文" }), ["display_stream"]),
    ).toBe("正文");
  });

  it("字段不在时退回任意字符串字段", () => {
    expect(extractDeclaredPayload(JSON.stringify({ other: "兜底" }), ["content"])).toBe("兜底");
  });

  it("坏 JSON 返回 null", () => {
    expect(extractDeclaredPayload("{oops", ["content"])).toBeNull();
  });
});