import { existsSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "fs";
import { join } from "path";
import { afterEach, beforeEach, describe, expect, it } from "vitest";
import { SettingsManager } from "../src/core/settings-manager.js";
describe("fullscreen mode settings", () => {
const testDir = join(process.cwd(), "test-fullscreen-tmp");
const agentDir = join(testDir, "agent");
const projectDir = join(testDir, "project");
let savedEnv: string | undefined;
let savedTermProgram: string | undefined;
beforeEach(() => {
if (existsSync(testDir)) {
rmSync(testDir, { recursive: true });
}
mkdirSync(agentDir, { recursive: true });
mkdirSync(join(projectDir, ".prime", "agent"), { recursive: true });
savedEnv = process.env.PI_FULLSCREEN;
savedTermProgram = process.env.TERM_PROGRAM;
delete process.env.PI_FULLSCREEN;
delete process.env.TERM_PROGRAM;
});
afterEach(() => {
if (existsSync(testDir)) {
rmSync(testDir, { recursive: true });
}
if (savedEnv === undefined) {
delete process.env.PI_FULLSCREEN;
} else {
process.env.PI_FULLSCREEN = savedEnv;
}
if (savedTermProgram === undefined) delete process.env.TERM_PROGRAM;
else process.env.TERM_PROGRAM = savedTermProgram;
});
it("defaults to fullscreen with mouse capture in Ghostty", () => {
process.env.TERM_PROGRAM = "ghostty";
const manager = SettingsManager.create(projectDir, agentDir);
expect(manager.getFullscreen()).toBe(true);
expect(manager.getFullscreenMouse()).toBe(true);
});
it("ignores a malformed null fullscreen mouse setting", () => {
process.env.TERM_PROGRAM = "xterm";
const settingsPath = join(agentDir, "settings.json");
writeFileSync(settingsPath, JSON.stringify({ terminal: { fullscreenMouse: null } }));
const manager = SettingsManager.create(projectDir, agentDir);
expect(manager.getFullscreenMouse()).toBe(true);
});
it("persists the fullscreen off toggle", async () => {
const manager = SettingsManager.create(projectDir, agentDir);
manager.setFullscreen(false);
await manager.flush();
const settings = JSON.parse(readFileSync(join(agentDir, "settings.json"), "utf-8"));
expect(settings.terminal.fullscreen).toBe(false);
const reloaded = SettingsManager.create(projectDir, agentDir);
expect(reloaded.getFullscreen()).toBe(false);
});
it("PI_FULLSCREEN env var overrides the setting in both directions", () => {
const manager = SettingsManager.create(projectDir, agentDir);
manager.setFullscreen(false);
process.env.PI_FULLSCREEN = "1";
expect(manager.getFullscreen()).toBe(true);
manager.setFullscreen(true);
process.env.PI_FULLSCREEN = "0";
expect(manager.getFullscreen()).toBe(false);
});
it("persists an explicit fullscreen mouse opt-out in Ghostty", async () => {
process.env.TERM_PROGRAM = "ghostty";
const manager = SettingsManager.create(projectDir, agentDir);
manager.setFullscreenMouse(false);
await manager.flush();
const reloaded = SettingsManager.create(projectDir, agentDir);
expect(reloaded.getFullscreenMouse()).toBe(false);
});
});