CoastalCommitsPastes/client/lib/config.ts

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