import { stripVTControlCharacters } from "node:util";
import type { AgentToolResult } from "@earendil-works/pi-agent-core";
import type { Text } from "@earendil-works/pi-tui";
import { beforeAll, describe, expect, it } from "vitest";
import type { ToolRenderContext } from "../src/core/extensions/types.ts";
import { codemodeRenderers } from "../src/extensions/codemode/renderer.ts";
import type { CodemodeToolDetails } from "../src/extensions/codemode/tool.ts";
import { initTheme, theme } from "../src/modes/interactive/theme/theme.ts";

function render(result: AgentToolResult<CodemodeToolDetails | undefined>, isError = false): string {
	const context = {
		args: { code: "" },
		toolCallId: "call",
		invalidate: () => {},
		lastComponent: undefined,
		state: {},
		cwd: "/",
		executionStarted: true,
		argsComplete: true,
		isPartial: false,
		expanded: true,
		showImages: false,
		isError,
	} satisfies ToolRenderContext;
	const component = codemodeRenderers.renderResult?.(
		result,
		{ expanded: true, isPartial: false },
		theme,
		context,
	) as Text;
	return stripVTControlCharacters(component.render(200).join("\n"))
		.split("\n")
		.map((line) => line.trimEnd())
		.join("\n")
		.trim();
}

describe("codemode renderer", () => {
	beforeAll(() => initTheme("dark"));

	it("hides the script header and shows the output", () => {
		const text = render({
			content: [
				{ type: "text", text: "Script completed\nWall time 0.1 seconds\nOutput:\n" },
				{ type: "text", text: "hello" },
			],
			details: { calls: [{ id: "call/1", name: "read", args: '{"path":"a"}', status: "ok", durationMs: 5 }] },
		});
		expect(text).toBe('✓ read {"path":"a"} 5ms\n\nhello');
	});

	it("shows results without a header, such as rejected options", () => {
		const text = render(
			{
				content: [{ type: "text", text: "The @options line must be followed by JavaScript source" }],
				details: undefined,
			},
			true,
		);
		expect(text).toBe("The @options line must be followed by JavaScript source");
	});
});