import { describe, it, expect } from "vitest";
import { stripAnsi } from "../../extensions/compress/stages/ansi.js";

describe("stripAnsi", () => {
	it("returns unchanged string when no ANSI codes present", () => {
		const text = "hello world\nno escapes here";
		expect(stripAnsi(text)).toBe(text);
	});

	it("strips color codes", () => {
		expect(stripAnsi("\x1b[31mred text\x1b[0m")).toBe("red text");
	});

	it("strips bold/dim codes", () => {
		expect(stripAnsi("\x1b[1mbold\x1b[22m")).toBe("bold");
	});

	it("strips cursor movement sequences", () => {
		expect(stripAnsi("\x1b[2J\x1b[H")).toBe("");
	});

	it("strips OSC sequences", () => {
		expect(stripAnsi("\x1b]0;title\x07text")).toBe("text");
	});

	it("handles mixed ANSI and plain text", () => {
		expect(stripAnsi("before\x1b[32mgreen\x1b[0mafter")).toBe("beforegreenafter");
	});

	it("handles empty string", () => {
		expect(stripAnsi("")).toBe("");
	});

	it("handles multiline with ANSI on some lines", () => {
		const input = "line1\n\x1b[31mline2\x1b[0m\nline3";
		expect(stripAnsi(input)).toBe("line1\nline2\nline3");
	});
});