import { join } from "node:path";
import { expect, it } from "vitest";
import { isolatedEnvironment, selectedTasks, within } from "./e2e.ts";

it("keeps E2E browser, agent, cache, and temporary state inside one run root", () => {
	const root = "/tmp/pi-ext-e2e-example";
	const env = isolatedEnvironment(root, {
		HOME: "/home/owner",
		XDG_DATA_HOME: "/home/owner/.local/share",
		XDG_CONFIG_HOME: "/home/owner/.config",
		PLAYWRIGHT_BROWSERS_PATH: "/home/owner/.cache/ms-playwright",
		PI_CODING_AGENT_DIR: "/home/owner/.pi/agent",
		TMPDIR: "/home/owner/project/.pi/tmp",
		PI_BAK_S3_ENDPOINT: "https://example.invalid",
	});
	for (const key of [
		"HOME",
		"USERPROFILE",
		"XDG_CONFIG_HOME",
		"XDG_CACHE_HOME",
		"XDG_DATA_HOME",
		"XDG_STATE_HOME",
		"TMPDIR",
		"TMP",
		"TEMP",
		"PLAYWRIGHT_BROWSERS_PATH",
		"PI_CODING_AGENT_DIR",
		"npm_config_cache",
		"MISE_CACHE_DIR",
		"MISE_STATE_DIR",
	])
		expect(within(root, env[key] ?? "/missing")).toBe(true);
	expect(env["MISE_DATA_DIR"]).toBe(join("/home/owner/.local/share", "mise"));
	expect(env["MISE_CONFIG_DIR"]).toBe(join("/home/owner/.config", "mise"));
	expect(env["PI_BAK_S3_ENDPOINT"]).toBeUndefined();
	expect(env["PI_BAK_E2E_S3"]).toBe("0");
	expect(env["PI_EXT_E2E_ROOT"]).toBe(root);
	expect(env["MISE_AUTO_INSTALL"]).toBe("0");
});

it("reuses only explicitly configured CI binary and download caches", () => {
	const env = isolatedEnvironment("/tmp/isolated", {
		HOME: "/tmp/ci-home",
		CI: "true",
		PI_EXT_CI_CACHE_ROOT: "/cache/toolchains",
		NPM_CONFIG_CACHE: "/cache/npm",
	});
	expect(env["PLAYWRIGHT_BROWSERS_PATH"]).toBe(
		join("/cache/toolchains", "browsers"),
	);
	expect(env["npm_config_cache"]).toBe("/cache/npm");
	expect(env["MISE_CACHE_DIR"]).toBe(join("/cache/toolchains", "downloads"));
	expect(env["MISE_STATE_DIR"]).toBe(join("/tmp/isolated", "mise-state"));
	expect(env["HOME"]).toBe(join("/tmp/isolated", "home"));
	const local = isolatedEnvironment("/tmp/isolated", {
		HOME: "/home/owner",
		PI_EXT_CI_CACHE_ROOT: "/cache/toolchains",
	});
	expect(local["PLAYWRIGHT_BROWSERS_PATH"]).toBe(
		join("/tmp/isolated", "browsers"),
	);
});

it("preserves Windows Mise installations before sandboxing AppData", () => {
	const parent = {
		USERPROFILE: "C:/Users/owner",
		LOCALAPPDATA: "D:/AppData/Local",
	};
	expect(
		isolatedEnvironment("C:/Temp/run", parent, "win32")["MISE_DATA_DIR"],
	).toBe(join(parent.LOCALAPPDATA, "mise"));
	expect(
		isolatedEnvironment(
			"C:/Temp/run",
			{ USERPROFILE: parent.USERPROFILE },
			"win32",
		)["MISE_DATA_DIR"],
	).toBe(join(parent.USERPROFILE, "AppData", "Local", "mise"));
	expect(
		isolatedEnvironment(
			"C:/Temp/run",
			{ ...parent, XDG_DATA_HOME: "D:/xdg" },
			"win32",
		)["MISE_DATA_DIR"],
	).toBe(join("D:/xdg", "mise"));
	expect(
		isolatedEnvironment(
			"C:/Temp/run",
			{ ...parent, XDG_DATA_HOME: "D:/xdg", MISE_DATA_DIR: "D:/explicit" },
			"win32",
		)["MISE_DATA_DIR"],
	).toBe("D:/explicit");
});

it("filters only listed local E2E suites", () => {
	const tasks = ["//extensions/strata:e2e", "//extensions/chrome-cdp:e2e"];
	expect(selectedTasks(tasks, "strata")).toEqual([tasks[0]]);
	expect(() => selectedTasks(tasks, "bak")).toThrow(/No local E2E task/);
	expect(() => selectedTasks(tasks, "../bak")).toThrow(/extension slug/);
});

it("rejects a temporary root inside the repository", () => {
	const repo = "/home/owner/project";
	expect(within(repo, join(repo, ".pi/tmp"))).toBe(true);
	expect(within(repo, "/tmp/pi-ext-e2e-example")).toBe(false);
});