import assert from 'node:assert/strict';
import test from 'node:test';
import { bootstrapPortalMemorySessionServices } from './portal-memory-session-services-bootstrap.mjs';

function createSetup(overrides = {}) {
  const calls = [];
  const pool = { id: 'pool' };
  const llmProviderService = { id: 'llm' };
  const userAuth = { id: 'user-auth' };
  const sessionAccess = { id: 'session-access' };
  const memoryV2ConfigService = {
    async getRuntimeState() {
      calls.push(['runtime-state']);
      return {
        overrides: {
          MEMORY_BACKEND: 'pgvector',
          SHARED: 'override',
        },
      };
    },
  };
  const conversationMemoryService = {
    id: 'conversation-memory',
  };
  const memoryV2 = { id: 'memory-v2' };
  const episodicMemoryService = {
    id: 'episodic',
    async ensureSchema() {
      calls.push(['episodic-schema']);
    },
  };
  const sessionSnapshotService = { id: 'snapshot' };
  const sessionStreamStore = { id: 'stream-store' };
  const directChatService = { id: 'direct-chat' };
  const chatIntentRouter = { id: 'intent-router' };
  const systemDisclosurePolicyService = {
    id: 'system-disclosure-policy',
    async initialize() {
      calls.push(['system-disclosure-initialize']);
    },
  };
  let skillRuntimeOptions;
  let agentCodeRunOptions;
  let conversationOptions;
  let memoryV2Options;
  let episodicOptions;
  let snapshotOptions;
  let streamStoreOptions;
  let directChatOptions;
  let routerOptions;

  const options = {
    pool,
    h5Root: '/app',
    env: {
      BASE_ONLY: 'base',
      SHARED: 'base',
    },
    llmProviderService,
    userAuth,
    sessionAccess,
    logger: {
      warn(...args) {
        calls.push(['warn', ...args]);
      },
    },
    createMemoryV2AdminConfigServiceFn(receivedPool) {
      assert.equal(receivedPool, pool);
      calls.push(['memory-config']);
      return memoryV2ConfigService;
    },
    createSkillRuntimeAdminConfigServiceFn(
      receivedPool,
      receivedOptions,
    ) {
      assert.equal(receivedPool, pool);
      calls.push(['skill-config']);
      skillRuntimeOptions = receivedOptions;
      return { id: 'skill-config' };
    },
    createSystemDisclosurePolicyServiceFn(
      receivedPool,
    ) {
      assert.equal(receivedPool, pool);
      calls.push(['system-disclosure-config']);
      return systemDisclosurePolicyService;
    },
    createAgentCodeRunAdminConfigServiceFn(
      receivedPool,
      receivedOptions,
    ) {
      assert.equal(receivedPool, pool);
      calls.push(['agent-code-run-config']);
      agentCodeRunOptions = receivedOptions;
      return { id: 'agent-code-run-config' };
    },
    createWechatScheduleLlmConfigServiceFn(
      receivedPool,
    ) {
      assert.equal(receivedPool, pool);
      calls.push(['wechat-schedule-config']);
      return { id: 'wechat-schedule-config' };
    },
    createConversationMemoryServiceFn(
      receivedPool,
      receivedOptions,
    ) {
      assert.equal(receivedPool, pool);
      calls.push(['conversation-memory']);
      conversationOptions = receivedOptions;
      return conversationMemoryService;
    },
    async createManagedMemoryV2RuntimeFn(
      receivedOptions,
    ) {
      calls.push(['memory-runtime']);
      memoryV2Options = receivedOptions;
      return memoryV2;
    },
    createEpisodicMemoryServiceFn(
      receivedPool,
      receivedOptions,
    ) {
      assert.equal(receivedPool, pool);
      calls.push(['episodic-memory']);
      episodicOptions = receivedOptions;
      return episodicMemoryService;
    },
    createSessionSnapshotServiceFn(
      receivedPool,
      receivedOptions,
    ) {
      assert.equal(receivedPool, pool);
      calls.push(['snapshot']);
      snapshotOptions = receivedOptions;
      return sessionSnapshotService;
    },
    isSessionStreamReplayEnabledFn() {
      calls.push(['replay-enabled']);
      return true;
    },
    createSessionStreamStoreFn(receivedOptions) {
      calls.push(['stream-store']);
      streamStoreOptions = receivedOptions;
      return sessionStreamStore;
    },
    createDirectChatServiceFn(receivedOptions) {
      calls.push(['direct-chat']);
      directChatOptions = receivedOptions;
      return directChatService;
    },
    createManagedChatIntentRouterFn(
      receivedOptions,
    ) {
      calls.push(['intent-router']);
      routerOptions = receivedOptions;
      return chatIntentRouter;
    },
    ...overrides,
  };

  return {
    calls,
    options,
    pool,
    llmProviderService,
    userAuth,
    sessionAccess,
    memoryV2ConfigService,
    conversationMemoryService,
    memoryV2,
    episodicMemoryService,
    systemDisclosurePolicyService,
    sessionSnapshotService,
    sessionStreamStore,
    getCaptured() {
      return {
        skillRuntimeOptions,
        agentCodeRunOptions,
        conversationOptions,
        memoryV2Options,
        episodicOptions,
        snapshotOptions,
        streamStoreOptions,
        directChatOptions,
        routerOptions,
      };
    },
  };
}

test('requires the Memory and Session dependencies', async () => {
  await assert.rejects(
    bootstrapPortalMemorySessionServices(),
    /requires memory and session dependencies/,
  );
});

test('preserves Memory, Session, and chat assembly order', async () => {
  const setup = createSetup();
  const result =
    await bootstrapPortalMemorySessionServices(
      setup.options,
    );

  assert.deepEqual(
    setup.calls.map(([name]) => name),
    [
      'memory-config',
      'skill-config',
      'system-disclosure-config',
      'system-disclosure-initialize',
      'agent-code-run-config',
      'wechat-schedule-config',
      'conversation-memory',
      'memory-runtime',
      'episodic-memory',
      'episodic-schema',
      'snapshot',
      'replay-enabled',
      'stream-store',
      'direct-chat',
      'intent-router',
    ],
  );
  assert.equal(
    result.memoryV2ConfigService,
    setup.memoryV2ConfigService,
  );
  assert.equal(
    result.systemDisclosurePolicyService,
    setup.systemDisclosurePolicyService,
  );
  assert.equal(result.agentCodeRunPolicyService.id, 'agent-code-run-config');
  assert.equal(
    result.sessionStreamStore,
    setup.sessionStreamStore,
  );
  assert.equal(result.directChatService.id, 'direct-chat');
  assert.equal(result.chatIntentRouter.id, 'intent-router');
});

test('preserves configuration and runtime service wiring', async () => {
  const setup = createSetup();
  await bootstrapPortalMemorySessionServices(
    setup.options,
  );
  const captured = setup.getCaptured();

  assert.deepEqual(captured.skillRuntimeOptions, {
    h5Root: '/app',
  });
  assert.deepEqual(captured.agentCodeRunOptions, {
    env: {
      BASE_ONLY: 'base',
      SHARED: 'base',
    },
  });
  assert.equal(
    captured.conversationOptions.llmProviderService,
    setup.llmProviderService,
  );
  assert.deepEqual(captured.memoryV2Options, {
    legacyMemoryService: setup.conversationMemoryService,
    configService: setup.memoryV2ConfigService,
    mysqlPool: setup.pool,
  });
  assert.equal(
    captured.episodicOptions.logger,
    setup.options.logger,
  );
  assert.deepEqual(captured.snapshotOptions, {
    conversationMemoryService:
      setup.conversationMemoryService,
    memoryV2: setup.memoryV2,
    episodicMemoryService: setup.episodicMemoryService,
  });
  assert.deepEqual(captured.streamStoreOptions, {
    pool: setup.pool,
  });
});

test('merges runtime overrides and falls back to the base environment', async () => {
  const setup = createSetup();
  const result =
    await bootstrapPortalMemorySessionServices(
      setup.options,
    );
  const captured = setup.getCaptured();

  assert.deepEqual(
    await captured.conversationOptions.getEffectiveEnv(),
    {
      BASE_ONLY: 'base',
      SHARED: 'override',
      MEMORY_BACKEND: 'pgvector',
    },
  );
  assert.equal(
    captured.conversationOptions.getEffectiveEnv,
    captured.episodicOptions.getEffectiveEnv,
  );

  setup.memoryV2ConfigService.getRuntimeState =
    async () => {
      throw new Error('config unavailable');
    };
  assert.deepEqual(await result.getEffectiveEnv(), {
    BASE_ONLY: 'base',
    SHARED: 'base',
  });
});

test('preserves Direct Chat and Intent Router dependencies', async () => {
  const setup = createSetup();
  await bootstrapPortalMemorySessionServices(
    setup.options,
  );
  const captured = setup.getCaptured();

  assert.deepEqual(captured.directChatOptions, {
    userAuth: setup.userAuth,
    sessionAccess: setup.sessionAccess,
    llmProviderService: setup.llmProviderService,
    sessionSnapshotService: setup.sessionSnapshotService,
    memoryV2: setup.memoryV2,
    conversationMemoryService:
      setup.conversationMemoryService,
    episodicMemoryService: setup.episodicMemoryService,
  });
  assert.deepEqual(captured.routerOptions, {
    llmProviderService: setup.llmProviderService,
    memoryV2: setup.memoryV2,
    conversationMemoryService:
      setup.conversationMemoryService,
    episodicMemoryService: setup.episodicMemoryService,
    configService: setup.memoryV2ConfigService,
  });
});

test('degrades episodic schema failures and can disable replay storage', async () => {
  const setup = createSetup({
    createEpisodicMemoryServiceFn() {
      return {
        async ensureSchema() {
          throw new Error('schema unavailable');
        },
      };
    },
    isSessionStreamReplayEnabledFn: () => false,
  });

  const result =
    await bootstrapPortalMemorySessionServices(
      setup.options,
    );

  assert.equal(result.sessionStreamStore, null);
  assert.ok(
    setup.calls.some(
      ([name, message, detail]) =>
        name === 'warn' &&
        message ===
          '[episodic-memory] schema setup degraded; snapshot fallback remains available:' &&
        detail === 'schema unavailable',
    ),
  );
});