import assert from "node:assert/strict";
import test from "node:test";

import type { AgentEvent } from "@earendil-works/pi-agent-core";

import {
	buildToolStatusContractFixture,
	formatToolDisplay,
	OrderedSseWriter,
	PromptRunRegistry,
	ToolStatusEventAdapter,
	type ToolStatusContractEvent,
} from "./tool-status-events.js";

test("tool status adapter emits v1 ordered contract fields", () => {
	const adapter = createAdapter();
	const events = [
		...adapter.adapt(textDelta("hello")),
		...adapter.adapt(startEvent("read-1", "read", { path: "/Users/example/private/a.md" })),
		...adapter.finishAssistant(),
	];

	assert.deepEqual(
		events.map((event) => ({
			schemaVersion: event.schemaVersion,
			runId: event.runId,
			messageId: event.messageId,
			seq: event.seq,
			type: event.type,
		})),
		[
			{ schemaVersion: 1, runId: "run-1", messageId: "message-1", seq: 1, type: "assistant_text_delta" },
			{ schemaVersion: 1, runId: "run-1", messageId: "message-1", seq: 2, type: "tool_status_start" },
			{ schemaVersion: 1, runId: "run-1", messageId: "message-1", seq: 3, type: "tool_status_summary" },
			{ schemaVersion: 1, runId: "run-1", messageId: "message-1", seq: 4, type: "assistant_done" },
		],
	);
});

test("tool status adapter covers start, update, end, failure, and missing args", () => {
	const adapter = createAdapter();

	const start = expectEvent(adapter.adapt(startEvent("bash-1", "bash", undefined))[0], "tool_status_start");
	const update = expectEvent(adapter.adapt({
		type: "tool_execution_update",
		toolCallId: "bash-1",
		toolName: "bash",
		args: undefined,
		partialResult: { details: { command: "npm run typecheck" } },
	})[0], "tool_status_update");
	const failed = expectEvent(adapter.adapt({
		type: "tool_execution_end",
		toolCallId: "bash-1",
		toolName: "bash",
		result: { error: "failed in /Users/example/private/project" },
		isError: true,
	})[0], "tool_status_end");

	assert.equal(start.type, "tool_status_start");
	assert.equal(start.action, "运行命令");
	assert.equal(start.target, "未知命令");
	assert.deepEqual(start.args, {});
	assert.equal(update.type, "tool_status_update");
	assert.equal(update.target, "npm run typecheck");
	assert.equal(failed.type, "tool_status_end");
	assert.equal(failed.status, "failed");
	assert.equal(failed.error, "failed in ~/private/project");
	assert.equal(failed.runningToolCount, 0);
});

test("tool status adapter formats common tool actions and targets", () => {
	const redaction = { homeDir: "/Users/example" };

	assert.deepEqual(formatToolDisplay("read", { path: "/Users/example/wiki/index.md" }, undefined, redaction), {
		action: "读取",
		target: "~/wiki/index.md",
	});
	assert.deepEqual(formatToolDisplay("write", { filePath: "/Users/example/wiki/new.md" }, undefined, redaction), {
		action: "写入",
		target: "~/wiki/new.md",
	});
	assert.deepEqual(formatToolDisplay("bash", { command: "npm run typecheck --workspace=@llm-wiki-agent/server" }, undefined, redaction), {
		action: "运行命令",
		target: "npm run typecheck --workspace=@llm-wiki-agent/server",
	});
	assert.deepEqual(formatToolDisplay("search", { query: "tool status", path: "/Users/example/wiki" }, undefined, redaction), {
		action: "搜索",
		target: "tool status in ~/wiki",
	});
	assert.deepEqual(formatToolDisplay("skill", { skillName: "llm-wiki" }, undefined, redaction), {
		action: "调用 Skill",
		target: "llm-wiki",
	});
});

test("tool status adapter redacts home paths and long command targets", () => {
	const adapter = createAdapter();
	const longCommand = [
		"node",
		"/Users/example/private/really/long/path/that/should/not/leak/source.js",
		"--token",
		"secret",
		"--output",
		"/Users/example/private/really/long/path/that/should/not/leak/output.json",
	].join(" ");

	const start = expectEvent(adapter.adapt(startEvent("bash-1", "bash", { command: longCommand }))[0], "tool_status_start");
	const end = expectEvent(adapter.adapt({
		type: "tool_execution_end",
		toolCallId: "bash-1",
		toolName: "bash",
		result: {
			content: [
				{
					type: "text",
					text: `wrote /Users/example/private/really/long/path/that/should/not/leak/output.json`,
				},
			],
		},
		isError: false,
	})[0], "tool_status_end");

	assert.equal(start.type, "tool_status_start");
	assert.equal(end.type, "tool_status_end");
	assert.equal(start.target.includes("/Users/example"), false);
	assert.equal(JSON.stringify(start).includes("/Users/example"), false);
	assert.equal(JSON.stringify(end).includes("/Users/example"), false);
	assert.ok(start.target.length <= 120);
	assert.ok(end.summary && end.summary.length <= 160);
});

test("tool status adapter keeps parallel tools independent", () => {
	const adapter = createAdapter();

	const startA = expectEvent(adapter.adapt(startEvent("read-1", "read", { path: "/Users/example/a.md" }))[0], "tool_status_start");
	const startB = expectEvent(adapter.adapt(startEvent("write-1", "write", { path: "/Users/example/b.md" }))[0], "tool_status_start");
	const endB = expectEvent(adapter.adapt({
		type: "tool_execution_end",
		toolCallId: "write-1",
		toolName: "write",
		result: { content: [{ type: "text", text: "wrote b.md" }] },
		isError: false,
	})[0], "tool_status_end");

	assert.equal(startA.type, "tool_status_start");
	assert.equal(startA.runningToolCount, 1);
	assert.equal(startA.otherRunningCount, 0);
	assert.equal(startB.type, "tool_status_start");
	assert.equal(startB.runningToolCount, 2);
	assert.equal(startB.otherRunningCount, 1);
	assert.equal(endB.type, "tool_status_end");
	assert.equal(endB.toolCallId, "write-1");
	assert.equal(endB.runningToolCount, 1);
	assert.deepEqual(adapter.getRunningTools().map((tool) => tool.toolCallId), ["read-1"]);
});

test("tool status adapter emits cancelled endings for active tools", () => {
	const adapter = createAdapter();
	adapter.adapt(startEvent("read-1", "read", { path: "/Users/example/a.md" }));
	adapter.adapt(startEvent("write-1", "write", { path: "/Users/example/b.md" }));

	const cancelled = adapter.cancelAssistant("client disconnected from /Users/example/private");

	assert.deepEqual(cancelled.map((event) => event.type), [
		"tool_status_end",
		"tool_status_end",
		"assistant_cancelled",
	]);
	assert.equal(JSON.stringify(cancelled).includes("/Users/example"), false);
	assert.deepEqual(adapter.getRunningTools(), []);
});

test("manual tool events cover knowledge-base retrieval lifecycle", () => {
	const adapter = createAdapter();

	const start = adapter.startTool({
		toolCallId: "knowledge-search-1",
		toolName: "knowledge_search",
		args: { query: "OpenClaw", path: "/Users/example/wiki" },
	});
	const done = adapter.endTool({
		toolCallId: "knowledge-search-1",
		toolName: "knowledge_search",
		result: { summary: "found 2 pages", paths: ["/Users/example/wiki/a.md"] },
	});
	const failed = adapter.endTool({
		toolCallId: "knowledge-search-2",
		toolName: "knowledge_search",
		result: { error: "read failed at /Users/example/wiki/private.md" },
		isError: true,
	});

	assert.equal(start.type, "tool_status_start");
	assert.equal(start.action, "搜索");
	assert.equal(start.target, "OpenClaw in ~/wiki");
	assert.equal(done.type, "tool_status_end");
	assert.equal(done.status, "done");
	assert.equal(done.summary, "found 2 pages");
	assert.equal(failed.status, "failed");
	assert.equal(failed.error, "read failed at ~/wiki/private.md");
});

test("ordered SSE writer serializes mixed async writes", async () => {
	const order: string[] = [];
	const writer = new OrderedSseWriter(async (payload) => {
		await new Promise((resolve) => setTimeout(resolve, payload.event === "slow" ? 5 : 0));
		order.push(`${payload.event}:${payload.data}`);
	});

	const first = writer.writeNamed("slow", "1");
	const second = writer.writeNamed("fast", "2");
	await Promise.all([second, first]);
	await writer.flush();

	assert.deepEqual(order, ["slow:1", "fast:2"]);
});

test("prompt run registry rejects same-session concurrency and releases owner", () => {
	const registry = new PromptRunRegistry();

	assert.equal(registry.begin("session-1", "run-a"), true);
	assert.equal(registry.begin("session-1", "run-b"), false);
	assert.equal(registry.get("session-1"), "run-a");
	registry.end("session-1", "run-b");
	assert.equal(registry.get("session-1"), "run-a");
	registry.end("session-1", "run-a");
	assert.equal(registry.begin("session-1", "run-b"), true);
});

test("tool status contract fixture snapshots shared sample events", () => {
	const fixture = buildToolStatusContractFixture();
	const compact = fixture.map(compactEvent);

	assert.deepEqual(compact, [
		{
			type: "assistant_text_delta",
			seq: 1,
			delta: "我来检查。",
		},
		{
			type: "tool_status_start",
			seq: 2,
			toolCallId: "read-1",
			toolName: "read",
			action: "读取",
			target: "~/projects/private/source.md",
			status: "running",
			runningToolCount: 1,
			otherRunningCount: 0,
		},
		{
			type: "tool_status_update",
			seq: 3,
			toolCallId: "read-1",
			toolName: "read",
			action: "读取",
			target: "~/projects/private/source.md",
			status: "running",
			runningToolCount: 1,
			otherRunningCount: 0,
		},
		{
			type: "tool_status_end",
			seq: 4,
			toolCallId: "read-1",
			toolName: "read",
			action: "读取",
			target: "~/projects/private/source.md",
			status: "done",
			runningToolCount: 0,
			otherRunningCount: 0,
		},
		{
			type: "tool_status_summary",
			seq: 5,
			items: [
				{
					toolCallId: "read-1",
					toolName: "read",
					action: "读取",
					target: "~/projects/private/source.md",
					status: "done",
					summary: "ok ~/projects/private/source.md",
				},
			],
			remainingRunningCount: 0,
		},
		{
			type: "assistant_done",
			seq: 6,
		},
	]);
	assert.equal(JSON.stringify(fixture).includes("/Users/example"), false);
});

function createAdapter() {
	let now = 1_000;
	return new ToolStatusEventAdapter({
		runId: "run-1",
		messageId: "message-1",
		homeDir: "/Users/example",
		now: () => {
			now += 25;
			return now;
		},
	});
}

function textDelta(delta: string): AgentEvent {
	return {
		type: "message_update",
		message: { role: "assistant", content: [] },
		assistantMessageEvent: {
			type: "text_delta",
			contentIndex: 0,
			delta,
			partial: { role: "assistant", content: [{ type: "text", text: delta }] },
		},
	} as unknown as AgentEvent;
}

function startEvent(toolCallId: string, toolName: string, args: unknown): AgentEvent {
	return {
		type: "tool_execution_start",
		toolCallId,
		toolName,
		args,
	};
}

function compactEvent(event: ToolStatusContractEvent): Record<string, unknown> {
	const base = { type: event.type, seq: event.seq };
	if (event.type === "assistant_text_delta") return { ...base, delta: event.delta };
	if (
		event.type === "assistant_done" ||
		event.type === "assistant_error" ||
		event.type === "assistant_cancelled"
	) {
		return base;
	}
	if (event.type === "tool_status_summary") {
		return { ...base, items: event.items, remainingRunningCount: event.remainingRunningCount };
	}
	return {
		...base,
		toolCallId: event.toolCallId,
		toolName: event.toolName,
		action: event.action,
		target: event.target,
		status: event.status,
		runningToolCount: event.runningToolCount,
		otherRunningCount: event.otherRunningCount,
	};
}

function expectEvent<T extends ToolStatusContractEvent["type"]>(
	event: ToolStatusContractEvent | undefined,
	type: T,
): Extract<ToolStatusContractEvent, { type: T }> {
	assert.ok(event);
	assert.equal(event.type, type);
	return event as Extract<ToolStatusContractEvent, { type: T }>;
}