90 lines
2.2 KiB
TypeScript
90 lines
2.2 KiB
TypeScript
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type Config = {
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// port: number
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jwt_secret: string
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drift_home: string
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is_production: boolean
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memory_db: boolean
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enable_admin: boolean
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secret_key: string
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registration_password: string
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welcome_content: string
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welcome_title: string
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url: string
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}
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type EnvironmentValue = string | undefined
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type Environment = { [key: string]: EnvironmentValue }
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export const config = (env: Environment): Config => {
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const stringToBoolean = (str: EnvironmentValue): boolean => {
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if (str === "true") {
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return true
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} else if (str === "false") {
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return false
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} else if (str) {
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throw new Error(`Invalid boolean value: ${str}`)
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} else {
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return false
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}
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}
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const throwIfUndefined = (str: EnvironmentValue, name: string): string => {
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if (str === undefined) {
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throw new Error(`Missing environment variable: ${name}`)
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}
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return str
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}
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const defaultIfUndefined = (
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str: EnvironmentValue,
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defaultValue: string
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): string => {
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if (str === undefined) {
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return defaultValue
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}
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return str
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}
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const validNodeEnvs = (str: EnvironmentValue) => {
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const valid = ["development", "production", "test"]
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if (str && !valid.includes(str)) {
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throw new Error(`Invalid NODE_ENV set: ${str}`)
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} else if (!str) {
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console.warn("No NODE_ENV specified, defaulting to development")
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} else {
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console.log(`Using NODE_ENV: ${str}`)
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}
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}
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const is_production = env.NODE_ENV === "production"
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const developmentDefault = (
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str: EnvironmentValue,
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name: string,
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defaultValue: string
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): string => {
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if (is_production) return throwIfUndefined(str, name)
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return defaultIfUndefined(str, defaultValue)
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}
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validNodeEnvs(env.NODE_ENV)
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const config: Config = {
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// port: env.PORT ? parseInt(env.PORT) : 3000,
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jwt_secret: env.JWT_SECRET || "myjwtsecret",
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drift_home: env.DRIFT_HOME || "~/.drift",
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is_production,
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memory_db: stringToBoolean(env.MEMORY_DB),
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enable_admin: stringToBoolean(env.ENABLE_ADMIN),
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secret_key: developmentDefault(env.SECRET_KEY, "SECRET_KEY", "secret"),
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registration_password: env.REGISTRATION_PASSWORD ?? "",
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welcome_content: env.WELCOME_CONTENT ?? "",
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welcome_title: env.WELCOME_TITLE ?? "",
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url: 'http://localhost:3000'
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}
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return config
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}
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export default config(process.env)
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