import { describe, expect, it } from 'vitest';
import { decodeRconError, rconFixHint } from '../../src/lib/ui/rconError.js';

describe('decodeRconError', () => {
    it('splits reason:detail from a well-formed error', () => {
        expect(decodeRconError('timeout:no reply within 3000ms')).toEqual({
            reason: 'timeout',
            detail: 'no reply within 3000ms'
        });
    });

    it('preserves colons inside the detail portion', () => {
        expect(decodeRconError('send-error:ENETUNREACH: no route to host 10.0.0.5:28960')).toEqual({
            reason: 'send-error',
            detail: 'ENETUNREACH: no route to host 10.0.0.5:28960'
        });
    });

    it('recognizes every known reason code', () => {
        for (const r of ['no-config', 'no-port', 'send-error', 'timeout', 'bad-reply', 'no-players'] as const) {
            expect(decodeRconError(`${r}:whatever`)?.reason).toBe(r);
        }
    });

    it('returns null for legacy free-text errors', () => {
        expect(decodeRconError('rcon unreachable')).toBeNull();
        expect(decodeRconError('unknown-reason:hello')).toBeNull();
        expect(decodeRconError('')).toBeNull();
        expect(decodeRconError(null)).toBeNull();
        expect(decodeRconError(undefined)).toBeNull();
    });
});

describe('rconFixHint', () => {
    it('returns a non-empty hint for every failure reason', () => {
        for (const r of ['no-config', 'no-port', 'send-error', 'timeout', 'bad-reply', 'no-players'] as const) {
            expect(rconFixHint(r).length).toBeGreaterThan(0);
        }
    });
});