import type { Api, Model } from "@mariozechner/pi-ai";
import type { EmbeddedRunAttemptParams } from "openclaw/plugin-sdk/agent-harness";
import { describe, expect, it, vi } from "vitest";
import { CodexAppServerEventProjector } from "./event-projector.js";

function createParams(): EmbeddedRunAttemptParams {
  return {
    prompt: "hello",
    sessionId: "session-1",
    provider: "openai-codex",
    modelId: "gpt-5.4-codex",
    model: {
      id: "gpt-5.4-codex",
      name: "gpt-5.4-codex",
      provider: "openai-codex",
      api: "openai-codex-responses",
      input: ["text"],
      reasoning: true,
      cost: { input: 0, output: 0, cacheRead: 0, cacheWrite: 0 },
      contextWindow: 128_000,
      maxTokens: 8_000,
    } as Model<Api>,
    thinkLevel: "medium",
  } as unknown as EmbeddedRunAttemptParams;
}

describe("CodexAppServerEventProjector", () => {
  it("projects assistant deltas and usage into embedded attempt results", async () => {
    const onAssistantMessageStart = vi.fn();
    const onPartialReply = vi.fn();
    const params = {
      ...createParams(),
      onAssistantMessageStart,
      onPartialReply,
    };
    const projector = new CodexAppServerEventProjector(params, "thread-1", "turn-1");

    await projector.handleNotification({
      method: "item/agentMessage/delta",
      params: { threadId: "thread-1", turnId: "turn-1", itemId: "msg-1", delta: "hel" },
    });
    await projector.handleNotification({
      method: "item/agentMessage/delta",
      params: { threadId: "thread-1", turnId: "turn-1", itemId: "msg-1", delta: "lo" },
    });
    await projector.handleNotification({
      method: "thread/tokenUsage/updated",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        tokenUsage: {
          total: {
            totalTokens: 12,
            inputTokens: 5,
            cachedInputTokens: 2,
            outputTokens: 7,
          },
        },
      },
    });
    await projector.handleNotification({
      method: "turn/completed",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        turn: {
          id: "turn-1",
          status: "completed",
          items: [{ type: "agentMessage", id: "msg-1", text: "hello" }],
        },
      },
    });

    const result = projector.buildResult({
      didSendViaMessagingTool: false,
      messagingToolSentTexts: [],
      messagingToolSentMediaUrls: [],
      messagingToolSentTargets: [],
    });

    expect(onAssistantMessageStart).toHaveBeenCalledTimes(1);
    expect(onPartialReply).not.toHaveBeenCalled();
    expect(result.assistantTexts).toEqual(["hello"]);
    expect(result.messagesSnapshot.map((message) => message.role)).toEqual(["user", "assistant"]);
    expect(result.lastAssistant?.content).toEqual([{ type: "text", text: "hello" }]);
    expect(result.attemptUsage).toMatchObject({ input: 5, output: 7, cacheRead: 2, total: 12 });
    expect(result.replayMetadata.replaySafe).toBe(true);
  });

  it("keeps intermediate agentMessage items out of the final visible reply", async () => {
    const onAssistantMessageStart = vi.fn();
    const onPartialReply = vi.fn();
    const params = {
      ...createParams(),
      onAssistantMessageStart,
      onPartialReply,
    };
    const projector = new CodexAppServerEventProjector(params, "thread-1", "turn-1");

    await projector.handleNotification({
      method: "item/agentMessage/delta",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        itemId: "msg-commentary",
        delta: "checking thread context; then post a tight progress reply here.",
      },
    });
    await projector.handleNotification({
      method: "item/agentMessage/delta",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        itemId: "msg-final",
        delta: "release fixes first. please drop affected PRs, failing checks, and blockers here.",
      },
    });
    await projector.handleNotification({
      method: "turn/completed",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        turn: {
          id: "turn-1",
          status: "completed",
          items: [
            {
              type: "agentMessage",
              id: "msg-commentary",
              text: "checking thread context; then post a tight progress reply here.",
            },
            {
              type: "agentMessage",
              id: "msg-final",
              text: "release fixes first. please drop affected PRs, failing checks, and blockers here.",
            },
          ],
        },
      },
    });

    const result = projector.buildResult({
      didSendViaMessagingTool: false,
      messagingToolSentTexts: [],
      messagingToolSentMediaUrls: [],
      messagingToolSentTargets: [],
    });

    expect(onAssistantMessageStart).toHaveBeenCalledTimes(1);
    expect(onPartialReply).not.toHaveBeenCalled();
    expect(result.assistantTexts).toEqual([
      "release fixes first. please drop affected PRs, failing checks, and blockers here.",
    ]);
    expect(result.lastAssistant?.content).toEqual([
      {
        type: "text",
        text: "release fixes first. please drop affected PRs, failing checks, and blockers here.",
      },
    ]);
    expect(JSON.stringify(result.messagesSnapshot)).not.toContain("checking thread context");
  });

  it("ignores notifications for other turns", async () => {
    const params = createParams();
    const projector = new CodexAppServerEventProjector(params, "thread-1", "turn-1");

    await projector.handleNotification({
      method: "item/agentMessage/delta",
      params: { threadId: "thread-1", turnId: "turn-2", itemId: "msg-1", delta: "wrong" },
    });

    const result = projector.buildResult({
      didSendViaMessagingTool: false,
      messagingToolSentTexts: [],
      messagingToolSentMediaUrls: [],
      messagingToolSentTargets: [],
    });
    expect(result.assistantTexts).toEqual([]);
  });

  it("preserves sessions_yield detection in attempt results", () => {
    const params = createParams();
    const projector = new CodexAppServerEventProjector(params, "thread-1", "turn-1");

    const result = projector.buildResult(
      {
        didSendViaMessagingTool: false,
        messagingToolSentTexts: [],
        messagingToolSentMediaUrls: [],
        messagingToolSentTargets: [],
      },
      { yieldDetected: true },
    );

    expect(result.yieldDetected).toBe(true);
  });

  it("projects reasoning end, plan updates, compaction state, and tool metadata", async () => {
    const onReasoningStream = vi.fn();
    const onReasoningEnd = vi.fn();
    const onAgentEvent = vi.fn();
    const params = {
      ...createParams(),
      onReasoningStream,
      onReasoningEnd,
      onAgentEvent,
    };
    const projector = new CodexAppServerEventProjector(params, "thread-1", "turn-1");

    await projector.handleNotification({
      method: "item/reasoning/textDelta",
      params: { threadId: "thread-1", turnId: "turn-1", itemId: "reason-1", delta: "thinking" },
    });
    await projector.handleNotification({
      method: "item/plan/delta",
      params: { threadId: "thread-1", turnId: "turn-1", itemId: "plan-1", delta: "- inspect\n" },
    });
    await projector.handleNotification({
      method: "turn/plan/updated",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        explanation: "next",
        plan: [{ step: "patch", status: "in_progress" }],
      },
    });
    await projector.handleNotification({
      method: "item/started",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        item: { type: "contextCompaction", id: "compact-1" },
      },
    });
    expect(projector.isCompacting()).toBe(true);
    await projector.handleNotification({
      method: "item/completed",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        item: { type: "contextCompaction", id: "compact-1" },
      },
    });
    expect(projector.isCompacting()).toBe(false);
    await projector.handleNotification({
      method: "item/completed",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        item: {
          type: "dynamicToolCall",
          id: "tool-1",
          tool: "sessions_send",
          status: "completed",
        },
      },
    });
    await projector.handleNotification({
      method: "turn/completed",
      params: {
        threadId: "thread-1",
        turnId: "turn-1",
        turn: { id: "turn-1", status: "completed", items: [] },
      },
    });

    const result = projector.buildResult({
      didSendViaMessagingTool: false,
      messagingToolSentTexts: [],
      messagingToolSentMediaUrls: [],
      messagingToolSentTargets: [],
    });

    expect(onReasoningStream).toHaveBeenCalledWith({ text: "thinking" });
    expect(onReasoningEnd).toHaveBeenCalledTimes(1);
    expect(onAgentEvent).toHaveBeenCalledWith(
      expect.objectContaining({
        stream: "plan",
        data: expect.objectContaining({ steps: ["patch (in_progress)"] }),
      }),
    );
    expect(onAgentEvent).toHaveBeenCalledWith(
      expect.objectContaining({
        stream: "compaction",
        data: expect.objectContaining({ phase: "start", itemId: "compact-1" }),
      }),
    );
    expect(result.toolMetas).toEqual([{ toolName: "sessions_send", meta: "completed" }]);
    expect(result.messagesSnapshot.map((message) => message.role)).toEqual([
      "user",
      "assistant",
      "assistant",
    ]);
    expect(JSON.stringify(result.messagesSnapshot[1])).toContain("Codex reasoning");
    expect(JSON.stringify(result.messagesSnapshot[2])).toContain("Codex plan");
    expect(result.itemLifecycle).toMatchObject({ compactionCount: 1 });
  });
});