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import {nanoid} from 'nanoid/non-secure'
import {logEvent} from '#/lib/statsig/statsig'
import {add} from '#/logger/logDump'
import {type MetricEvents} from '#/logger/metrics'
import {bitdriftTransport} from '#/logger/transports/bitdrift'
import {consoleTransport} from '#/logger/transports/console'
import {sentryTransport} from '#/logger/transports/sentry'
import {
LogContext,
LogLevel,
type Metadata,
type Transport,
} from '#/logger/types'
import {enabledLogLevels} from '#/logger/util'
import {isNative} from '#/platform/detection'
const TRANSPORTS: Transport[] = (function configureTransports() {
switch (process.env.NODE_ENV) {
case 'production': {
return [sentryTransport, isNative && bitdriftTransport].filter(
Boolean,
) as Transport[]
}
case 'test': {
return []
}
default: {
return [consoleTransport]
}
}
})()
export class Logger {
static Level = LogLevel
static Context = LogContext
level: LogLevel
context: LogContext | undefined = undefined
contextFilter: string = ''
protected debugContextRegexes: RegExp[] = []
protected transports: Transport[] = []
static create(context?: LogContext) {
const logger = new Logger({
level: process.env.EXPO_PUBLIC_LOG_LEVEL as LogLevel,
context,
contextFilter: process.env.EXPO_PUBLIC_LOG_DEBUG || '',
})
for (const transport of TRANSPORTS) {
logger.addTransport(transport)
}
return logger
}
constructor({
level,
context,
contextFilter,
}: {
level?: LogLevel
context?: LogContext
contextFilter?: string
} = {}) {
this.context = context
this.level = level || LogLevel.Info
this.contextFilter = contextFilter || ''
if (this.contextFilter) {
this.level = LogLevel.Debug
}
this.debugContextRegexes = (this.contextFilter || '')
.split(',')
.map(filter => {
return new RegExp(filter.replace(/[^\w:*-]/, '').replace(/\*/g, '.*'))
})
}
debug(message: string, metadata: Metadata = {}) {
this.transport({level: LogLevel.Debug, message, metadata})
}
info(message: string, metadata: Metadata = {}) {
this.transport({level: LogLevel.Info, message, metadata})
}
log(message: string, metadata: Metadata = {}) {
this.transport({level: LogLevel.Log, message, metadata})
}
warn(message: string, metadata: Metadata = {}) {
this.transport({level: LogLevel.Warn, message, metadata})
}
error(error: Error | string, metadata: Metadata = {}) {
this.transport({level: LogLevel.Error, message: error, metadata})
}
metric<E extends keyof MetricEvents>(
event: E & string,
metadata: MetricEvents[E],
options: {
/**
* Optionally also send to StatSig
*/
statsig?: boolean
} = {statsig: true},
) {
logEvent(event, metadata, {
lake: !options.statsig,
})
for (const transport of this.transports) {
transport(LogLevel.Info, LogContext.Metric, event, metadata, Date.now())
}
}
addTransport(transport: Transport) {
this.transports.push(transport)
return () => {
this.transports.splice(this.transports.indexOf(transport), 1)
}
}
protected transport({
level,
message,
metadata = {},
}: {
level: LogLevel
message: string | Error
metadata: Metadata
}) {
if (
level === LogLevel.Debug &&
!!this.contextFilter &&
!!this.context &&
!this.debugContextRegexes.find(reg => reg.test(this.context!))
)
return
const timestamp = Date.now()
const meta = metadata || {}
// send every log to syslog
add({
id: nanoid(),
timestamp,
level,
context: this.context,
message,
metadata: meta,
})
if (!enabledLogLevels[this.level].includes(level)) return
for (const transport of this.transports) {
transport(level, this.context, message, meta, timestamp)
}
}
}
/**
* Default logger instance. See `@/logger/README` for docs.
*
* Basic usage:
*
* `logger.debug(message[, metadata])`
* `logger.info(message[, metadata])`
* `logger.log(message[, metadata])`
* `logger.warn(message[, metadata])`
* `logger.error(error[, metadata])`
*/
export const logger = Logger.create(Logger.Context.Default)
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