// Amazon Bedrock tests cover stream plugin behavior.
import { BedrockRuntimeClient, ConversationRole } from "@aws-sdk/client-bedrock-runtime";
import { onLlmRequestActivity } from "openclaw/plugin-sdk/provider-stream-shared";
import { afterEach, describe, expect, it, vi } from "vitest";
import { streamBedrock, streamSimpleBedrock, testing } from "./stream.runtime.js";

function bedrockModel(overrides: Record<string, unknown>) {
  return {
    api: "bedrock-converse-stream",
    provider: "amazon-bedrock",
    id: "amazon.nova-micro-v1:0",
    name: "Nova Micro",
    baseUrl: "https://bedrock-runtime.us-east-1.amazonaws.com",
    reasoning: true,
    input: ["text"],
    cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
    contextWindow: 128000,
    maxTokens: 4096,
    ...overrides,
  } as never;
}

function signedThinkingContext(modelId: string) {
  const highSurrogate = String.fromCharCode(0xd83d);
  return {
    messages: [
      {
        role: "assistant",
        api: "bedrock-converse-stream",
        provider: "amazon-bedrock",
        model: modelId,
        content: [
          {
            type: "thinking",
            thinking: `private${highSurrogate}reasoning`,
            thinkingSignature: "sig-1",
          },
        ],
      },
    ],
  } as never;
}

async function* streamEvents(events: unknown[]) {
  for (const event of events) {
    yield event;
  }
}

afterEach(() => {
  vi.restoreAllMocks();
});

describe("Bedrock reasoning replay", () => {
  it("preserves signed reasoning for Claude profile descriptors", () => {
    const modelId =
      "arn:aws:bedrock:us-east-1:123456789012:application-inference-profile/profile-abc";
    const messages = testing.convertMessages(
      signedThinkingContext(modelId),
      bedrockModel({
        id: modelId,
        name: "Claude Sonnet application profile",
      }),
      "none",
    );

    expect(messages[0]?.content).toEqual([
      {
        reasoningContent: {
          reasoningText: {
            text: `private${String.fromCharCode(0xd83d)}reasoning`,
            signature: "sig-1",
          },
        },
      },
    ]);
  });

  it("replays signed reasoning as plain text for non-Claude models", () => {
    const modelId = "amazon.nova-micro-v1:0";
    const messages = testing.convertMessages(
      signedThinkingContext(modelId),
      bedrockModel({ id: modelId, name: "Nova Micro" }),
      "none",
    );

    expect(messages[0]?.content).toEqual([{ text: "privatereasoning" }]);
  });

  it("preserves signature-only Fable reasoning blocks", () => {
    const modelId = "anthropic.claude-fable-5";
    const messages = testing.convertMessages(
      {
        messages: [
          {
            role: "assistant",
            api: "bedrock-converse-stream",
            provider: "amazon-bedrock",
            model: modelId,
            content: [
              {
                type: "thinking",
                thinking: "",
                thinkingSignature: " sig-fable ",
              },
            ],
          },
        ],
      } as never,
      bedrockModel({ id: modelId, name: "Claude Fable 5" }),
      "none",
    );

    expect(messages[0]?.content).toEqual([
      {
        reasoningContent: {
          reasoningText: {
            text: "",
            signature: " sig-fable ",
          },
        },
      },
    ]);
  });

  it("drops synthetic reasoning placeholders from Claude replay", () => {
    const modelId = "anthropic.claude-fable-5";
    const messages = testing.convertMessages(
      {
        messages: [
          {
            role: "assistant",
            api: "bedrock-converse-stream",
            provider: "amazon-bedrock",
            model: modelId,
            content: [
              {
                type: "thinking",
                thinking: "hidden compatibility reasoning",
                thinkingSignature: "reasoning_content",
              },
            ],
          },
        ],
      } as never,
      bedrockModel({ id: modelId, name: "Claude Fable 5" }),
      "none",
    );

    expect(messages).toEqual([]);
  });
});

describe("Bedrock profile endpoint resolution", () => {
  it("treats request profiles as configured profiles for standard endpoints", () => {
    const endpoint = "https://bedrock-runtime.us-west-2.amazonaws.com";

    expect(testing.hasConfiguredBedrockProfile({ profile: "prod-bedrock" })).toBe(true);
    expect(
      testing.shouldUseExplicitBedrockEndpoint(
        endpoint,
        undefined,
        testing.hasConfiguredBedrockProfile({ profile: "prod-bedrock" }),
      ),
    ).toBe(false);
  });
});

describe("Bedrock thinking effort mapping", () => {
  it("does not force adaptive thinking for optional Claude models when callers omit reasoning", () => {
    const model = bedrockModel({
      id: "anthropic.claude-sonnet-4-6-v1:0",
      name: "Claude Sonnet 4.6",
      reasoning: true,
    });
    const options = testing.resolveSimpleBedrockOptions(model, {});

    expect(options.reasoning).toBeUndefined();
    expect(testing.buildAdditionalModelRequestFields(model, options)).toBeUndefined();
  });

  it("forces adaptive thinking for Bedrock Mythos Preview when callers omit reasoning", () => {
    const model = bedrockModel({
      id: "us.anthropic.claude-mythos-preview",
      name: "US Claude Mythos Preview",
      reasoning: true,
    });
    const options = testing.resolveSimpleBedrockOptions(model, {});

    expect(options.reasoning).toBe("high");
    expect(testing.buildAdditionalModelRequestFields(model, options)).toEqual({
      thinking: { type: "adaptive", display: "summarized" },
      output_config: { effort: "high" },
    });
  });

  it("clamps max effort for Claude models without native max support", () => {
    expect(
      testing.mapThinkingLevelToEffort(
        bedrockModel({
          id: "anthropic.claude-sonnet-4-6-v1:0",
          name: "Claude Sonnet 4.6",
        }),
        "max",
      ),
    ).toBe("high");
  });

  it("caps unsupported xhigh effort at high for Claude Opus 4.6", () => {
    expect(
      testing.mapThinkingLevelToEffort(
        bedrockModel({
          id: "anthropic.claude-opus-4-6-v1:0",
          name: "Claude Opus 4.6",
        }),
        "xhigh",
      ),
    ).toBe("high");
  });

  it("preserves max effort for Claude Opus 4.8", () => {
    expect(
      testing.mapThinkingLevelToEffort(
        bedrockModel({
          id: "anthropic.claude-opus-4.8-v1:0",
          name: "Claude Opus 4.8",
        }),
        "max",
      ),
    ).toBe("max");
  });

  it("uses canonical Claude policy for deployment aliases", () => {
    expect(
      testing.mapThinkingLevelToEffort(
        bedrockModel({
          id: "production-claude",
          name: "Production Claude",
          params: { canonicalModelId: "claude-opus-4-8" },
        }),
        "max",
      ),
    ).toBe("max");
  });

  it("preserves adaptive effort for opaque profiles with descriptive Claude names", () => {
    expect(
      testing.mapThinkingLevelToEffort(
        bedrockModel({
          id: "arn:aws:bedrock:us-east-1:123456789012:application-inference-profile/profile-abc",
          name: "Claude Production Opus 4.8",
        }),
        "xhigh",
      ),
    ).toBe("xhigh");
  });
});

describe("Bedrock Fable contract", () => {
  function fableModel() {
    return bedrockModel({
      id: "production-fable",
      name: "Production deployment",
      reasoning: false,
      params: { canonicalModelId: "claude-fable-5" },
      contextWindow: 1_000_000,
      maxTokens: 128_000,
    });
  }

  function context() {
    return {
      messages: [{ role: "user", content: "Reply briefly.", timestamp: 0 }],
      tools: [
        {
          name: "lookup",
          description: "Lookup",
          parameters: { type: "object", properties: {} },
        },
      ],
    } as never;
  }

  it("sends always-adaptive high effort without unsupported request controls", async () => {
    const send = vi.spyOn(BedrockRuntimeClient.prototype, "send").mockResolvedValue({
      $metadata: { httpStatusCode: 200 },
      stream: streamEvents([
        { messageStart: { role: ConversationRole.ASSISTANT } },
        { messageStop: { stopReason: "end_turn" } },
      ]),
    } as never);

    const stream = streamBedrock(fableModel(), context(), {
      reasoning: "high",
      temperature: 0.2,
      toolChoice: "any",
    });
    await stream.result();

    const command = send.mock.calls[0]?.[0] as { input?: Record<string, unknown> };
    expect(command.input).toMatchObject({
      modelId: "production-fable",
      inferenceConfig: {},
      messages: [
        {
          role: "user",
          content: [{ text: "Reply briefly." }, { cachePoint: { type: "default" } }],
        },
      ],
      toolConfig: { toolChoice: { auto: {} } },
      additionalModelRequestFields: {
        thinking: { type: "adaptive", display: "summarized" },
        output_config: { effort: "high" },
      },
      additionalModelResponseFieldPaths: ["/stop_details"],
    });
  });

  it("preserves explicit tool disabling", async () => {
    const send = vi.spyOn(BedrockRuntimeClient.prototype, "send").mockResolvedValue({
      $metadata: { httpStatusCode: 200 },
      stream: streamEvents([
        { messageStart: { role: ConversationRole.ASSISTANT } },
        { messageStop: { stopReason: "end_turn" } },
      ]),
    } as never);

    const stream = streamBedrock(fableModel(), context(), {
      reasoning: "high",
      toolChoice: "none",
    });
    await stream.result();

    const command = send.mock.calls[0]?.[0] as { input?: Record<string, unknown> };
    expect(command.input?.toolConfig).toBeUndefined();
  });

  it("quarantines partial output when Fable returns a terminal refusal", async () => {
    vi.spyOn(BedrockRuntimeClient.prototype, "send").mockResolvedValue({
      $metadata: { httpStatusCode: 200 },
      stream: streamEvents([
        {
          contentBlockDelta: {
            contentBlockIndex: 0,
            delta: { text: "discard this partial output" },
          },
        },
        {
          messageStop: {
            stopReason: "refusal",
            additionalModelResponseFields: {
              stop_details: {
                category: "cyber",
                explanation: "This request is not allowed.",
              },
            },
          },
        },
      ]),
    } as never);

    const stream = streamSimpleBedrock(fableModel(), context());
    const eventTypes: string[] = [];
    for await (const event of stream) {
      eventTypes.push(event.type);
    }
    const result = await stream.result();

    expect(eventTypes).toEqual(["error"]);
    expect(result.content).toEqual([]);
    expect(result.errorMessage).toBe(
      "Anthropic refusal (category: cyber): This request is not allowed.",
    );
    expect(result.diagnostics).toEqual([
      expect.objectContaining({
        type: "provider_refusal",
        details: {
          provider: "amazon-bedrock",
          category: "cyber",
          explanation: "This request is not allowed.",
        },
      }),
    ]);
  });

  it("discards partial output when the Fable stream ends without messageStop", async () => {
    vi.spyOn(BedrockRuntimeClient.prototype, "send").mockResolvedValue({
      $metadata: { httpStatusCode: 200 },
      stream: streamEvents([
        { messageStart: { role: ConversationRole.ASSISTANT } },
        {
          contentBlockDelta: {
            contentBlockIndex: 0,
            delta: { text: "unsafe partial output" },
          },
        },
      ]),
    } as never);

    const stream = streamSimpleBedrock(fableModel(), context());
    const eventTypes: string[] = [];
    for await (const event of stream) {
      eventTypes.push(event.type);
    }
    const result = await stream.result();

    expect(eventTypes).toEqual(["error"]);
    expect(result.content).toEqual([]);
    expect(result.errorMessage).toContain("ended before messageStop");
  });

  it("reports activity while Fable events are buffered", async () => {
    vi.spyOn(BedrockRuntimeClient.prototype, "send").mockResolvedValue({
      $metadata: { httpStatusCode: 200 },
      stream: streamEvents([
        { messageStart: { role: ConversationRole.ASSISTANT } },
        {
          contentBlockDelta: {
            contentBlockIndex: 0,
            delta: { text: "buffered output" },
          },
        },
        { messageStop: { stopReason: "end_turn" } },
      ]),
    } as never);
    const controller = new AbortController();
    let activityCount = 0;
    const unsubscribe = onLlmRequestActivity(controller.signal, () => {
      activityCount += 1;
    });

    try {
      const stream = streamSimpleBedrock(fableModel(), context(), {
        signal: controller.signal,
      });
      await stream.result();
    } finally {
      unsubscribe();
    }

    expect(activityCount).toBeGreaterThan(0);
  });
});

describe("Bedrock canonical Claude aliases", () => {
  it.each([
    {
      canonicalModelId: "claude-opus-4-8",
      reasoning: "xhigh" as const,
      thinkingLevelMap: { xhigh: "xhigh" as const, max: "max" as const },
      expectedEffort: "xhigh",
    },
    {
      canonicalModelId: "claude-opus-4-6",
      reasoning: "max" as const,
      thinkingLevelMap: { xhigh: null, max: "max" as const },
      expectedEffort: "max",
    },
    {
      canonicalModelId: "claude-opus-4-6",
      reasoning: "max" as const,
      thinkingLevelMap: { xhigh: null, max: null },
      expectedEffort: "high",
    },
  ])(
    "uses adaptive thinking and omits temperature for $canonicalModelId aliases",
    async ({ canonicalModelId, reasoning, thinkingLevelMap, expectedEffort }) => {
      const send = vi.spyOn(BedrockRuntimeClient.prototype, "send").mockResolvedValue({
        $metadata: { httpStatusCode: 200 },
        stream: streamEvents([
          { messageStart: { role: ConversationRole.ASSISTANT } },
          { messageStop: { stopReason: "end_turn" } },
        ]),
      } as never);
      const model = bedrockModel({
        id: "production-claude",
        name: "Production Claude",
        reasoning: false,
        params: { canonicalModelId },
        thinkingLevelMap,
      });

      await streamSimpleBedrock(
        model,
        { messages: [{ role: "user", content: "Reply briefly.", timestamp: 0 }] } as never,
        {
          reasoning,
          temperature: 0.2,
        },
      ).result();

      const command = send.mock.calls[0]?.[0] as { input?: Record<string, unknown> };
      expect(command.input).toMatchObject({
        modelId: "production-claude",
        inferenceConfig: {},
        additionalModelRequestFields: {
          thinking: { type: "adaptive", display: "summarized" },
          output_config: { effort: expectedEffort },
        },
      });
    },
  );
});