import mongoose from 'mongoose';
import { createApp, loadResources } from '@classytic/arc/factory';

await mongoose.connect(process.env.DB_URI);

const app = await createApp({
  preset: 'production',
  resourcePrefix: '/api/v1',
  resources: await loadResources(import.meta.url),  // auto-discovers *.resource.ts
  auth: { type: 'jwt', jwt: { secret: process.env.JWT_SECRET } },
  cors: { origin: process.env.ALLOWED_ORIGINS?.split(',') },
});

await app.listen({ port: 8040, host: '0.0.0.0' });

// Auto-discover from directory (recommended)
resources: await loadResources(import.meta.url),  // dev/prod parity

// Explicit array
resources: [productResource, orderResource],

// Via plugins callback (full Fastify control)
plugins: async (f) => { await f.register(productResource.toPlugin()); },

const app = await createApp({
  resourcePrefix: '/api/v1',
  plugins: async (f) => { await connectDB(); },          // 1. infra (DB, docs)
  bootstrap: [inventoryInit, accountingInit],             // 2. domain init
  resources: await loadResources(import.meta.url),        // 3. routes
  afterResources: async (f) => { subscribeEvents(f); },   // 4. post-wiring
  onReady: async (f) => { logger.info('ready'); },
});

// app.ts — register once with perResource mode
await fastify.register(auditPlugin, { autoAudit: { perResource: true } });

// order.resource.ts — opt in
defineResource({ name: 'order', audit: true });

// payment.resource.ts — only audit deletes
defineResource({ name: 'payment', audit: { operations: ['delete'] } });

// Manual logging from MCP tools or custom routes
app.post('/orders/:id/refund', async (req) => {
  await app.audit.custom('order', req.params.id, 'refund', { reason }, { user });
});

import { defineResource, createMongooseAdapter, allowPublic, roles } from '@classytic/arc';

const productResource = defineResource({
  name: 'product',
  adapter: createMongooseAdapter({ model: ProductModel, repository: productRepo }),
  presets: ['softDelete', 'slugLookup', { name: 'multiTenant', tenantField: 'orgId' }],
  permissions: {
    list: allowPublic(),
    get: allowPublic(),
    create: roles('admin', 'editor'),  // checks platform + org roles
    update: roles('admin', 'editor'),
    delete: roles('admin'),
  },
  cache: { staleTime: 30, gcTime: 300, tags: ['catalog'] }, // QueryCache (opt-in)
  additionalRoutes: [
    { method: 'GET', path: '/featured', handler: 'getFeatured', permissions: allowPublic(), wrapHandler: true },
  ],
});

// Auto-generates: GET /, GET /:id, POST /, PATCH /:id, DELETE /:id
// Plus preset routes: GET /deleted, POST /:id/restore, GET /slug/:slug

defineResource({
  name: 'job',
  adapter: createMongooseAdapter(JobModel, jobRepository),
  idField: 'jobId',  // routes + BaseController lookups + OpenAPI + MCP tools all use this
});
// GET /jobs/job-5219f346-a4d  → 200 (no ObjectId pattern enforcement)

// Arc JWT
auth: { type: 'jwt', jwt: { secret: process.env.JWT_SECRET, expiresIn: '15m' } }

// Better Auth (recommended for SaaS with orgs)
import { createBetterAuthAdapter } from '@classytic/arc/auth';
auth: { type: 'betterAuth', betterAuth: createBetterAuthAdapter({ auth, orgContext: true }) }

// Custom plugin
auth: { type: 'custom', plugin: myAuthPlugin }

// Custom function
auth: { type: 'authenticator', authenticate: async (req, reply) => { ... } }

// Disabled
auth: false

auth: {
  type: 'jwt',
  jwt: { secret: process.env.JWT_SECRET },
  isRevoked: async (decoded) => {
    // Redis set, DB lookup, or any async check
    return await redis.sismember('revoked-tokens', decoded.jti ?? decoded.id);
  },
}

import {
  allowPublic, requireAuth, requireRoles, requireOwnership,
  requireOrgMembership, requireOrgRole, allOf, anyOf, denyAll,
  createDynamicPermissionMatrix,
} from '@classytic/arc';

permissions: {
  list: allowPublic(),
  get: requireAuth(),
  create: requireRoles(['admin', 'editor']),
  update: anyOf(requireOwnership('userId'), requireRoles(['admin'])),
  delete: allOf(requireAuth(), requireRoles(['admin'])),
}

import { fields } from '@classytic/arc';

fields: {
  password: fields.hidden(),
  salary: fields.visibleTo(['admin', 'hr']),
  role: fields.writableBy(['admin']),
  email: fields.redactFor(['viewer'], '***'),
}

const acl = createDynamicPermissionMatrix({
  resolveRolePermissions: async (ctx) => aclService.getRoleMatrix(orgId),
  cacheStore: new RedisCacheStore({ client: redis, prefix: 'acl:' }),
});

permissions: {
  list: acl.canAction('product', 'read'),
  create: acl.canAction('product', 'create'),
}

presets: ['softDelete', { name: 'multiTenant', tenantField: 'organizationId' }]

// Enable globally
const app = await createApp({
  arcPlugins: { queryCache: true },  // Memory store by default
});

// Per-resource config
defineResource({
  name: 'product',
  cache: {
    staleTime: 30,    // seconds fresh
    gcTime: 300,      // seconds stale data kept (SWR window)
    tags: ['catalog'],
    invalidateOn: { 'category.*': ['catalog'] }, // cross-resource
  },
});

import { BaseController } from '@classytic/arc';
import type { IRequestContext, IControllerResponse } from '@classytic/arc';

class ProductController extends BaseController<Product> {
  constructor() { super(productRepo); }

  async getFeatured(req: IRequestContext): Promise<IControllerResponse> {
    const products = await this.repository.getAll({ filters: { isFeatured: true } });
    return { success: true, data: products };
  }
}

// createApp() registers eventPlugin automatically (default: MemoryEventTransport)
// Transport is sourced from stores.events if provided
const app = await createApp({
  stores: { events: new RedisEventTransport(redis) },  // optional, defaults to memory
  arcPlugins: {
    events: {                     // event plugin config (default: true)
      logEvents: true,
      retry: { maxRetries: 3, backoffMs: 1000 },
    },
  },
});

await app.events.publish('order.created', { orderId: '123' });
await app.events.subscribe('order.*', async (event) => { ... });

import { defineEvent, createEventRegistry } from '@classytic/arc/events';

// Define typed events
const OrderCreated = defineEvent({
  name: 'order.created',
  version: 1,
  description: 'Emitted when an order is placed',
  schema: {
    type: 'object',
    properties: {
      orderId: { type: 'string' },
      total: { type: 'number' },
      currency: { type: 'string' },
    },
    required: ['orderId', 'total'],
  },
});

// Type-safe event creation
const event = OrderCreated.create({ orderId: 'o-1', total: 100 }, { userId: 'user-1' });
await app.events.publish(event.type, event.payload, event.meta);

const registry = createEventRegistry();
registry.register(OrderCreated);
registry.register(OrderShipped);

// Wire into eventPlugin — validates payloads on publish
const app = await createApp({
  arcPlugins: {
    events: { registry, validateMode: 'warn' },
    // 'warn' (default): log warning, still publish
    // 'reject': throw error, do NOT publish
    // 'off': registry is introspection-only
  },
});

// Introspect at runtime
app.events.registry?.catalog();
// → [{ name: 'order.created', version: 1, schema: {...} }, ...]

// src/events.ts
export const eventRegistry = createEventRegistry();
eventRegistry.register(OrderCreated);
eventRegistry.register(OrderShipped);

// Redis Pub/Sub
import { RedisEventTransport } from '@classytic/arc/events/redis';
const transport = new RedisEventTransport(redis, { channel: 'arc-events' });

// Redis Streams (ordered, durable)
import { RedisStreamTransport } from '@classytic/arc/events/redis-stream';
const transport = new RedisStreamTransport(redis, { stream: 'arc-events' });

import { withRetry, createDeadLetterPublisher } from '@classytic/arc/events';

// Per-handler retry with exponential backoff
await app.events.subscribe('order.created', withRetry(
  async (event) => { await sendConfirmationEmail(event.payload); },
  {
    maxRetries: 3,
    backoffMs: 1000,
    onDead: createDeadLetterPublisher(app.events), // publishes to $deadLetter channel
  },
));

// Or configure auto-retry for ALL handlers via plugin
const app = await createApp({
  arcPlugins: {
    events: {
      retry: { maxRetries: 3, backoffMs: 1000 },
      deadLetterQueue: { store: async (event, errors) => { /* custom DLQ */ } },
    },
  },
});

const app = await createApp({
  preset: 'production',           // production | development | testing | edge
  runtime: 'memory',             // memory (default) | distributed (requires Redis)
  auth: { type: 'jwt', jwt: { secret } },
  cors: { origin: ['https://myapp.com'] },
  helmet: true,                   // false to disable
  rateLimit: { max: 100 },        // false to disable
  arcPlugins: {
    events: true,                 // event plugin (default: true, false to disable)
    emitEvents: true,             // CRUD event emission (default: true)
    queryCache: true,             // server cache (default: false)
    sse: true,                    // server-sent events (default: false)
    caching: true,                // ETag + Cache-Control (default: false)
  },
  stores: {                       // required when runtime: 'distributed'
    events: new RedisEventTransport({ client: redis }),
    cache: new RedisCacheStore({ client: redis }),
    queryCache: new RedisCacheStore({ client: redis, prefix: 'arc:qc:' }),
  },
});

// SSE — via factory
const app = await createApp({
  arcPlugins: { sse: { path: '/events', requireAuth: true, orgScoped: true } },
});

// WebSocket — separate plugin
import { websocketPlugin } from '@classytic/arc/integrations/websocket';
await app.register(websocketPlugin, {
  auth: true,                       // fail-closed: throws if authenticate not registered
  resources: ['product', 'order'],
  roomPolicy: (client, room) => ['product', 'order'].includes(room),
  reauthInterval: 300000,           // re-validate token every 5 min (0 = disabled)
  maxMessageBytes: 16384,           // 16KB message size cap
  maxSubscriptionsPerClient: 100,   // prevent resource exhaustion
});

// EventGateway — unified SSE + WebSocket with shared config
import { eventGatewayPlugin } from '@classytic/arc/integrations/event-gateway';
await app.register(eventGatewayPlugin, {
  auth: true, orgScoped: true,
  roomPolicy: (client, room) => allowedRooms.includes(room),
  sse: { path: '/api/events', patterns: ['order.*'] },
  ws: { path: '/ws', resources: ['product', 'order'] },
});

import { pipe, guard, transform, intercept } from '@classytic/arc';

const isActive = guard('isActive', (ctx) => ctx.query?.filters?.isActive !== false);
const slugify = transform('slugify', (ctx) => ({ ...ctx, body: { ...ctx.body, slug: toSlug(ctx.body.name) } }));
const timing = intercept('timing', async (ctx, next) => {
  const start = Date.now();
  const result = await next();
  console.log(`${ctx.resource}.${ctx.operation}: ${Date.now() - start}ms`);
  return result;
});

defineResource({
  name: 'product',
  pipe: pipe(isActive, slugify, timing),
  // or per-operation: pipe: { create: pipe(slugify), list: pipe(timing) }
});

// Circuit Breaker — fault tolerance for external service calls
import { createCircuitBreaker } from '@classytic/arc/utils';
const paymentBreaker = createCircuitBreaker(
  async (amount) => stripe.charges.create({ amount }),
  { name: 'stripe', failureThreshold: 5, resetTimeout: 30000, fallback: async () => cached },
);

// State Machine — workflow validation
import { createStateMachine } from '@classytic/arc/utils';
const orderState = createStateMachine('Order', {
  approve: ['pending', 'draft'],
  cancel: ['pending', 'approved'],
  fulfill: { from: ['approved'], to: 'fulfilled', guard: ({ data }) => data.paid },
});
orderState.assert('approve', currentStatus); // throws if invalid transition

// Job Queue (BullMQ)
import { jobsPlugin, defineJob } from '@classytic/arc/integrations/jobs';

// WebSocket (room-based, CRUD auto-broadcast)
import { websocketPlugin } from '@classytic/arc/integrations/websocket';

// EventGateway (unified SSE + WebSocket)
import { eventGatewayPlugin } from '@classytic/arc/integrations/event-gateway';

// Streamline Workflows
import { streamlinePlugin } from '@classytic/arc/integrations/streamline';

// Audit Trail
import { auditPlugin } from '@classytic/arc/audit';

// Idempotency (exactly-once mutations)
import { idempotencyPlugin } from '@classytic/arc/idempotency';

// OpenTelemetry Tracing
import { tracingPlugin } from '@classytic/arc/plugins/tracing';