/**
 * @license
 * Copyright 2025 Vybestack LLC
 * SPDX-License-Identifier: Apache-2.0
 */
import { describe, it, expect, vi, beforeEach } from 'vitest';
/**
 * Tests for Issue 1250: Proactive failover handler wiring for LoadBalancer sub-profiles
 *
 * Problem: The fix for issue #1151 only handles StandardProfile. When a LoadBalancer
 * profile is active with sub-profiles that use OAuth multi-bucket auth, the failover
 * handlers aren't wired proactively.
 *
 * Solution: After the StandardProfile handling in applyProfileSnapshot(), add logic
 * to detect LoadBalancer profiles, iterate through their sub-profiles, and proactively
 * wire failover handlers for any OAuth multi-bucket sub-profiles.
 *
 * Implementation location: runtimeSettings.ts, lines 1116-1167
 *
 * Test strategy:
 * - These tests verify the profile conditions and logic that trigger proactive wiring
 * - The behavioral tests for OAuthManager.getOAuthToken() wiring are covered in:
 *   - oauth-manager.failover-wiring.spec.ts (tests handler creation during getOAuthToken)
 *   - oauth-manager.bucketFailover.spec.ts (tests bucket failover handler integration)
 * - The implementation in runtimeSettings.ts calls getOAuthToken() for each qualifying
 *   sub-profile, which triggers the handler wiring logic tested in those files.
 */
describe('RuntimeSettings - Proactive Failover Handler Wiring for LoadBalancer (Issue 1250)', () => {
    beforeEach(() => {
        vi.clearAllMocks();
    });
    describe('Profile conditions for proactive wiring in LoadBalancer sub-profiles', () => {
        it('LoadBalancer profile should be recognized for sub-profile inspection', () => {
            const lbProfile = {
                version: 1,
                type: 'loadbalancer',
                policy: 'roundrobin',
                profiles: ['sub1', 'sub2', 'sub3'],
                provider: '',
                model: '',
                modelParams: {},
                ephemeralSettings: {},
            };
            // Verify the profile structure matches what applyProfileSnapshot would check
            expect(lbProfile.type).toBe('loadbalancer');
            expect(lbProfile.profiles).toBeDefined();
            expect(Array.isArray(lbProfile.profiles)).toBe(true);
            expect(lbProfile.profiles.length).toBe(3);
        });
        it('sub-profile with OAuth multi-bucket should qualify for wiring', () => {
            const subProfile = {
                version: 1,
                type: 'standard',
                provider: 'anthropic',
                model: 'claude-3-5-sonnet-latest',
                modelParams: {},
                ephemeralSettings: {},
                auth: {
                    type: 'oauth',
                    buckets: ['bucket1', 'bucket2'],
                },
            };
            const authConfig = subProfile.auth;
            // This is the same condition used in runtimeSettings.ts for StandardProfile
            // and should now also apply to sub-profiles of LoadBalancer
            const shouldProactivelyWire = authConfig?.type === 'oauth' &&
                authConfig.buckets &&
                authConfig.buckets.length > 1;
            expect(shouldProactivelyWire).toBe(true);
            expect(authConfig?.buckets?.length).toBe(2);
        });
        it('sub-profile with OAuth single-bucket should NOT qualify for wiring', () => {
            const subProfile = {
                version: 1,
                type: 'standard',
                provider: 'anthropic',
                model: 'claude-3-opus-latest',
                modelParams: {},
                ephemeralSettings: {},
                auth: {
                    type: 'oauth',
                    buckets: ['default'],
                },
            };
            const authConfig = subProfile.auth;
            const shouldProactivelyWire = authConfig?.type === 'oauth' &&
                authConfig.buckets &&
                authConfig.buckets.length > 1;
            // Single bucket = no failover needed
            expect(shouldProactivelyWire).toBe(false);
        });
        it('sub-profile with API-key auth should NOT qualify for wiring', () => {
            const subProfile = {
                version: 1,
                type: 'standard',
                provider: 'openai',
                model: 'gpt-4',
                modelParams: {},
                ephemeralSettings: {
                    'auth-key': 'sk-test-key',
                },
            };
            const authConfig = subProfile.auth;
            const shouldProactivelyWire = authConfig?.type === 'oauth' &&
                authConfig.buckets &&
                authConfig.buckets.length > 1;
            // No OAuth auth config
            expect(shouldProactivelyWire).toBe(false);
            expect(authConfig).toBeUndefined();
        });
        it('LoadBalancer with empty profiles array should handle gracefully', () => {
            const lbProfile = {
                version: 1,
                type: 'loadbalancer',
                policy: 'roundrobin',
                profiles: [], // Empty array
                provider: '',
                model: '',
                modelParams: {},
                ephemeralSettings: {},
            };
            expect(lbProfile.type).toBe('loadbalancer');
            expect(lbProfile.profiles).toBeDefined();
            expect(Array.isArray(lbProfile.profiles)).toBe(true);
            expect(lbProfile.profiles.length).toBe(0);
            // Implementation should handle empty array without errors
        });
        it('sub-profile with no auth config should NOT qualify for wiring', () => {
            const subProfile = {
                version: 1,
                type: 'standard',
                provider: 'ollama',
                model: 'llama2',
                modelParams: {},
                ephemeralSettings: {},
                // No auth config at all
            };
            const authConfig = subProfile.auth;
            const shouldProactivelyWire = authConfig?.type === 'oauth' &&
                authConfig.buckets &&
                authConfig.buckets.length > 1;
            expect(shouldProactivelyWire).toBe(false);
            expect(authConfig).toBeUndefined();
        });
    });
    describe('Behavioral verification of proactive wiring logic for LoadBalancer sub-profiles', () => {
        /**
         * These tests verify the logic that determines whether getOAuthToken() should be called
         * for each sub-profile. They test the conditional logic directly rather than the full
         * integration, since full integration requires runtime context setup.
         *
         * The implementation in runtimeSettings.ts (lines 1115-1166) uses this logic:
         *   if (subProfileAuth?.type === 'oauth' && subProfileAuth.buckets && subProfileAuth.buckets.length > 1)
         *
         * These tests verify that logic works correctly for different sub-profile configurations.
         */
        it('should identify OAuth multi-bucket sub-profiles that need proactive wiring', () => {
            const subProfiles = [
                {
                    version: 1,
                    type: 'standard',
                    provider: 'anthropic',
                    model: 'claude-3-5-sonnet-latest',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['bucket1', 'bucket2'],
                    },
                },
                {
                    version: 1,
                    type: 'standard',
                    provider: 'openai',
                    model: 'gpt-4',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['bucket1', 'bucket2', 'bucket3'],
                    },
                },
                {
                    version: 1,
                    type: 'standard',
                    provider: 'google',
                    model: 'gemini-pro',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['bucket1', 'bucket2'],
                    },
                },
            ];
            // Apply the same logic as in runtimeSettings.ts
            const qualifyingProfiles = subProfiles.filter((subProfile) => {
                const subProfileAuth = subProfile.auth;
                return (subProfileAuth?.type === 'oauth' &&
                    subProfileAuth.buckets &&
                    subProfileAuth.buckets.length > 1);
            });
            // All three sub-profiles should qualify for proactive wiring
            expect(qualifyingProfiles).toHaveLength(3);
            expect(qualifyingProfiles.map((p) => p.provider)).toEqual([
                'anthropic',
                'openai',
                'google',
            ]);
        });
        it('should NOT identify single-bucket OAuth sub-profiles for proactive wiring', () => {
            const subProfiles = [
                {
                    version: 1,
                    type: 'standard',
                    provider: 'anthropic',
                    model: 'claude-3-5-sonnet-latest',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['bucket1', 'bucket2'],
                    },
                },
                {
                    version: 1,
                    type: 'standard',
                    provider: 'openai',
                    model: 'gpt-4',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['default'], // Single bucket
                    },
                },
            ];
            const qualifyingProfiles = subProfiles.filter((subProfile) => {
                const subProfileAuth = subProfile.auth;
                return (subProfileAuth?.type === 'oauth' &&
                    subProfileAuth.buckets &&
                    subProfileAuth.buckets.length > 1);
            });
            // Only the multi-bucket profile should qualify
            expect(qualifyingProfiles).toHaveLength(1);
            expect(qualifyingProfiles[0].provider).toBe('anthropic');
        });
        it('should NOT identify API-key sub-profiles for proactive wiring', () => {
            const subProfiles = [
                {
                    version: 1,
                    type: 'standard',
                    provider: 'anthropic',
                    model: 'claude-3-5-sonnet-latest',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['bucket1', 'bucket2'],
                    },
                },
                {
                    version: 1,
                    type: 'standard',
                    provider: 'openai',
                    model: 'gpt-4',
                    modelParams: {},
                    ephemeralSettings: {
                        'auth-key': 'sk-test-key',
                    },
                },
            ];
            const qualifyingProfiles = subProfiles.filter((subProfile) => {
                const subProfileAuth = subProfile.auth;
                return (subProfileAuth?.type === 'oauth' &&
                    subProfileAuth.buckets &&
                    subProfileAuth.buckets.length > 1);
            });
            // Only the OAuth multi-bucket profile should qualify
            expect(qualifyingProfiles).toHaveLength(1);
            expect(qualifyingProfiles[0].provider).toBe('anthropic');
        });
        it('should handle mixed sub-profiles correctly (only identifying qualifying ones)', () => {
            const subProfiles = [
                {
                    version: 1,
                    type: 'standard',
                    provider: 'anthropic',
                    model: 'claude-3-5-sonnet-latest',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['bucket1', 'bucket2'],
                    },
                },
                {
                    version: 1,
                    type: 'standard',
                    provider: 'openai',
                    model: 'gpt-4',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['default'], // Single bucket
                    },
                },
                {
                    version: 1,
                    type: 'standard',
                    provider: 'openai',
                    model: 'gpt-3.5-turbo',
                    modelParams: {},
                    ephemeralSettings: {
                        'auth-key': 'sk-test', // API key
                    },
                },
                {
                    version: 1,
                    type: 'standard',
                    provider: 'ollama',
                    model: 'llama2',
                    modelParams: {},
                    ephemeralSettings: {},
                    // No auth at all
                },
                {
                    version: 1,
                    type: 'standard',
                    provider: 'google',
                    model: 'gemini-pro',
                    modelParams: {},
                    ephemeralSettings: {},
                    auth: {
                        type: 'oauth',
                        buckets: ['bucket1', 'bucket2', 'bucket3'],
                    },
                },
            ];
            const qualifyingProfiles = subProfiles.filter((subProfile) => {
                const subProfileAuth = subProfile.auth;
                return (subProfileAuth?.type === 'oauth' &&
                    subProfileAuth.buckets &&
                    subProfileAuth.buckets.length > 1);
            });
            // Only the two multi-bucket OAuth sub-profiles should qualify
            expect(qualifyingProfiles).toHaveLength(2);
            expect(qualifyingProfiles.map((p) => p.provider)).toEqual([
                'anthropic',
                'google',
            ]);
        });
        it('should validate the implementation matches the specification pattern from oauth-manager.failover-wiring.spec.ts', () => {
            // This test verifies that the logic pattern in runtimeSettings.ts for LoadBalancer
            // sub-profiles matches the same pattern used for StandardProfile in Issue #1151
            // Test profile: OAuth with multiple buckets (should qualify)
            const multiOAuthProfile = {
                version: 1,
                type: 'standard',
                provider: 'anthropic',
                model: 'claude-3-5-sonnet-latest',
                modelParams: {},
                ephemeralSettings: {},
                auth: {
                    type: 'oauth',
                    buckets: ['bucket1', 'bucket2', 'bucket3'],
                },
            };
            const authConfig = multiOAuthProfile.auth;
            // This is the exact condition from runtimeSettings.ts lines 1094-1097 (StandardProfile)
            // and lines 1130-1135 (LoadBalancer sub-profiles)
            const shouldProactivelyWire = authConfig?.type === 'oauth' &&
                authConfig.buckets &&
                authConfig.buckets.length > 1;
            expect(shouldProactivelyWire).toBe(true);
            expect(authConfig?.buckets?.length).toBe(3);
            // Test profile: Single bucket (should NOT qualify)
            const singleBucketProfile = {
                version: 1,
                type: 'standard',
                provider: 'openai',
                model: 'gpt-4',
                modelParams: {},
                ephemeralSettings: {},
                auth: {
                    type: 'oauth',
                    buckets: ['default'],
                },
            };
            const singleAuthConfig = singleBucketProfile.auth;
            const shouldNotWire = singleAuthConfig?.type === 'oauth' &&
                singleAuthConfig.buckets &&
                singleAuthConfig.buckets.length > 1;
            expect(shouldNotWire).toBe(false);
        });
    });
});
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