vitest.setup.ts

// Polyfill Mocha-style globals some legacy compiled tests still reference
// so we can migrate incrementally without editing build artifacts.
import { beforeAll, afterAll, beforeEach, afterEach } from "vitest";

// Only assign if not already defined (Vitest defines the *All variants)
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
if (!(globalThis as any).before) (globalThis as any).before = beforeAll;
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
if (!(globalThis as any).after) (globalThis as any).after = afterAll;
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
if (!(globalThis as any).beforeEach)
    (globalThis as any).beforeEach = beforeEach;
// eslint-disable-next-line @typescript-eslint/ban-ts-comment
// @ts-ignore
if (!(globalThis as any).afterEach) (globalThis as any).afterEach = afterEach;

// Optional: silence unhandled rejection warnings during migration (can remove later)
process.on("unhandledRejection", (e) => {
    // eslint-disable-next-line no-console
    console.warn(
        "[vitest.setup] Unhandled rejection (test will surface explicit failures separately):",
        e
    );
});

// Basic EventTarget polyfill for Node tests needing CustomEvent dispatch/listen
// We only implement the tiny subset used (addEventListener/removeEventListener/dispatchEvent with type + detail)
if (typeof (globalThis as any).addEventListener !== "function") {
    const listeners: Record<string, Set<Function>> = {};
    (globalThis as any).addEventListener = (type: string, cb: any) => {
        (listeners[type] ||= new Set()).add(cb);
    };
    (globalThis as any).removeEventListener = (type: string, cb: any) => {
        listeners[type]?.delete(cb);
    };
    (globalThis as any).dispatchEvent = (evt: {
        type?: string;
        detail?: any;
    }) => {
        const type = (evt as any).type;
        if (!type) return true;
        for (const cb of listeners[type] || []) {
            try {
                cb({ detail: (evt as any).detail });
            } catch (err) {
                // eslint-disable-next-line no-console
                console.warn("[vitest.setup] listener error for", type, err);
            }
        }
        return true;
    };
    // Minimal CustomEvent polyfill if missing
    if (typeof (globalThis as any).CustomEvent !== "function") {
        (globalThis as any).CustomEvent = class CustomEvent<T = any> {
            type: string;
            detail: T;
            constructor(type: string, init: { detail?: T } = {}) {
                this.type = type;
                this.detail = init.detail as T;
            }
        } as any;
    }
}