/**
 * Class used for storing access and refresh tokens, as well as their expiry dates respectively.
 */
data class TokenData(@field:Json(name = "accessToken") val accessToken: String,
                     val accessTokenExpiryDate: Long = System.currentTimeMillis() + ACCESS_TOKEN_EXPIRY_TIME,
                     @field:Json(name = "refreshToken") val refreshToken: String,
                     val refreshTokenExpiryDate: Long = System.currentTimeMillis() + REFRESH_TOKEN_EXPIRY_TIME)

private const val ACCESS_TOKEN_EXPIRY_TIME: Long = 604_800_000
private const val REFRESH_TOKEN_EXPIRY_TIME: Long = 4_838_400_000