import { describe, expect, it } from "bun:test";
import { type OpenCodeClient } from "@opencode-ai/client";

import { OpencodeRuntimeAdapter } from "../../src/runtime/opencode.js";

const createRuntimeAdapter = (client: unknown) =>
  Object.assign(new OpencodeRuntimeAdapter(), {
    clientPromise: Promise.resolve(client as OpenCodeClient),
  }) as OpencodeRuntimeAdapter;

const createEventStream = (events: unknown[]) => ({
  async *[Symbol.asyncIterator]() {
    for (const event of events) {
      yield event;
    }
  },
});

describe("OpencodeRuntimeAdapter V2 interaction responses", () => {
  it("replies through the top-level V2 permission API", async () => {
    const runtime = createRuntimeAdapter({
      permission: {
        reply: async (parameters: Record<string, unknown>) => {
          expect(parameters).toEqual({
            sessionID: "session-1",
            requestID: "request-1",
            reply: "once",
            message: "approved",
          });
        },
      },
    });

    await expect(
      runtime.replyPermission({
        requestId: "request-1",
        sessionId: "session-1",
        reply: "once",
        message: "approved",
      }),
    ).resolves.toBeUndefined();
  });

  it("replies through the top-level V2 question API", async () => {
    const runtime = createRuntimeAdapter({
      question: {
        reply: async (parameters: Record<string, unknown>) => {
          expect(parameters).toEqual({
            sessionID: "session-1",
            requestID: "request-1",
            answers: [["A"]],
          });
        },
      },
    });

    await expect(
      runtime.replyQuestion({
        requestId: "request-1",
        sessionId: "session-1",
        answers: [["A"]],
      }),
    ).resolves.toBeUndefined();
  });

  it("rejects through the top-level V2 question API", async () => {
    const runtime = createRuntimeAdapter({
      question: {
        reject: async (parameters: Record<string, unknown>) => {
          expect(parameters).toEqual({
            sessionID: "session-1",
            requestID: "request-1",
          });
        },
      },
    });

    await expect(
      runtime.rejectQuestion({
        requestId: "request-1",
        sessionId: "session-1",
      }),
    ).resolves.toBeUndefined();
  });

  it("maps frontend question answers to the V2 Form API", async () => {
    const runtime = createRuntimeAdapter({
      form: {
        get: async (parameters: Record<string, unknown>) => {
          expect(parameters).toEqual({ sessionID: "session-1", formID: "frm_1" });
          return {
            fields: [
              {
                key: "scope",
                type: "string",
                title: "范围",
                options: [{ value: "urban", label: "城区" }],
              },
              { key: "confirmed", type: "boolean", title: "确认" },
            ],
          };
        },
        reply: async (parameters: Record<string, unknown>) => {
          expect(parameters).toEqual({
            sessionID: "session-1",
            formID: "frm_1",
            answer: { scope: "urban", confirmed: true },
          });
        },
      },
    });

    await expect(
      runtime.replyQuestion({
        requestId: "frm_1",
        sessionId: "session-1",
        answers: [["城区"], ["是"]],
      }),
    ).resolves.toBeUndefined();
  });

  it("cancels V2 Form requests by form ID", async () => {
    const runtime = createRuntimeAdapter({
      form: {
        cancel: async (parameters: Record<string, unknown>) => {
          expect(parameters).toEqual({ sessionID: "session-1", formID: "frm_1" });
        },
      },
    });

    await expect(
      runtime.rejectQuestion({ requestId: "frm_1", sessionId: "session-1" }),
    ).resolves.toBeUndefined();
  });

  it("normalizes V2 Form and execution events for the chat stream", async () => {
    const runtime = createRuntimeAdapter({
      event: {
        subscribe: () =>
          createEventStream([
            {
              type: "form.created",
              data: {
                form: {
                  id: "frm_1",
                  sessionID: "session-1",
                  title: "分析参数",
                  fields: [
                    {
                      key: "scope",
                      type: "string",
                      title: "范围",
                      description: "选择分析范围",
                      options: [{ value: "urban", label: "城区" }],
                    },
                  ],
                },
              },
            },
            {
              type: "session.execution.succeeded",
              data: { sessionID: "session-1" },
            },
          ]),
      },
    });
    const events = [];

    for await (const event of await runtime.subscribeEvents()) {
      events.push(event);
    }

    expect(events).toEqual([
      {
        type: "question.asked",
        sessionId: "session-1",
        request: {
          id: "frm_1",
          questions: [
            {
              header: "范围",
              question: "选择分析范围",
              options: [{ label: "城区", description: "" }],
              multiple: false,
              custom: false,
            },
          ],
        },
      },
      { type: "session.execution.succeeded", sessionId: "session-1" },
    ]);
  });
});