import { createLogger } from '@sylphx/cat'

const logger = createLogger()
logger.info('Hello from cat! 🐱')

import { createLogger } from '@sylphx/cat'

const logger = createLogger()

logger.info('Server started', { port: 3000 })
// {"level":"info","msg":"Server started","port":3000,"time":1700000000000}

logger.error(new Error('Connection failed'))
// {"level":"error","err":{"message":"Connection failed","stack":"..."},"time":...}

import { createLogger } from '@sylphx/cat'
import { prettyFormatter } from '@sylphx/cat-pretty'

const logger = createLogger({
  formatter: prettyFormatter()
})

logger.info('Hello world')
// [2024-11-14 20:30:15] INF Hello world

import { createLogger } from '@sylphx/cat'
import { fileTransport } from '@sylphx/cat-file'
import { httpSerializers } from '@sylphx/cat-http'

const logger = createLogger({
  serializers: httpSerializers,
  transports: [fileTransport({ path: './logs/app.log' })]
})

// Express middleware
app.use((req, res, next) => {
  logger.info({ req }, 'Incoming request')
  next()
})

import { createLogger } from '@sylphx/cat'
import { otlpTransport } from '@sylphx/cat-otlp'
import { tracingPlugin } from '@sylphx/cat-tracing'
import { tailSamplingPlugin } from '@sylphx/cat-tail-sampling'
import { redactionPlugin } from '@sylphx/cat-redaction'

const logger = createLogger({
  plugins: [
    tracingPlugin(),
    redactionPlugin({ pii: true }),
    tailSamplingPlugin({ monthlyBudget: 100_000 })
  ],
  transports: [
    otlpTransport({
      endpoint: 'https://api.honeycomb.io/v1/logs',
      headers: { 'x-honeycomb-team': process.env.API_KEY }
    })
  ]
})

logger.info({ userId: 123, event: 'purchase' })
// Automatically:
// - Adds traceId for distributed tracing
// - Redacts PII (credit cards, SSNs, emails)
// - Samples intelligently (100% errors, 10% success)
// - Exports to Honeycomb via OTLP

const logger = createLogger({ service: 'api' })
const requestLogger = logger.child({ requestId: '123' })

requestLogger.info('Processing')
// {"service":"api","requestId":"123","level":"info","msg":"Processing"}

import { createLogger } from '@sylphx/cat'

const logger = createLogger({
  serializers: {
    user: (user) => ({ id: user.id, name: user.name })
  }
})

logger.info({ user: { id: 1, name: 'Alice', password: 'secret' } })
// {"level":"info","user":{"id":1,"name":"Alice"}}

import { createLogger } from '@sylphx/cat'
import { fileTransport } from '@sylphx/cat-file'
import { otlpTransport } from '@sylphx/cat-otlp'

const logger = createLogger({
  transports: [
    fileTransport({ path: './logs/app.log' }),
    otlpTransport({ endpoint: 'https://...' })
  ]
})

import type { Plugin, LogEntry } from '@sylphx/cat'

const timestampPlugin: Plugin = {
  name: 'timestamp',
  onLog: (entry: LogEntry) => {
    entry.timestamp = new Date().toISOString()
    return entry
  }
}

const logger = createLogger({
  plugins: [timestampPlugin]
})