mod account_json;
pub use account_json::AccountProvider;

mod garage_data;
pub use garage_data::SelectedGarage;

mod initial_data;
pub use initial_data::{setup_new_user, register_new_user};

mod inventory;
pub use inventory::UnlockedParts;

mod traits;
pub use traits::{UserProvider, User, UserToken, UserSlots, UserSlotData, VehicleData, UserInfo, UserLoginInfo, ExtraUserInfo, UserAuthenticator, NewSlotData, UserId, RegistrationInfo, VehicleUploadData, ChatUser, AvatarInfo, GetAvatarInfo, ControlData, ControlType, CustomisationData, GetCustomisationData, SetSanction, SanctionType, LobbyUser, GameDescriptor, PlayerLobbyDescriptor, MultiplayerUser, MultiplayerError, MultiplayerErrorCode, PlayerDescriptor, GameEventSetter, CurrentGameEvent, AuthError, IntercomUser};

mod intercom;
pub use intercom::generate_token as generate_intercom_token;

pub const TOKEN_SECRET_FILENAME: &str = "token_secret.key";

pub const USERS_DIR: &str = "accounts";
pub const USER_FILE: &str = "user.json";
pub const GARAGE_DIR: &str = "vehicles";

pub type UserImpl = AccountProvider;

fn __must_impl<T: UserProvider<()>>() {}

fn __test_impl() {
    __must_impl::<UserImpl>();
}

pub fn since_windows_epoch(since_unix_epoch: i64) -> i64 {
    use chrono::TimeZone;
    let windows_epoch = chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::parse_from_str("1601-01-01 00:00:00", "%Y-%m-%d %H:%M:%S").unwrap());
    let time_in = chrono::DateTime::<chrono::Utc>::from_timestamp(since_unix_epoch, 0).unwrap();
    //let time_in = chrono::Utc.from_utc_datetime(&chrono::NaiveDateTime::from_timestamp(since_unix_epoch, 0));
    time_in.signed_duration_since(windows_epoch).num_milliseconds() * 10_000
}

pub fn uuid_sanitize(num: i64) -> i64 {
    let unsan = i64_split(num);
    i64_join((
        unsan.0.clamp(0, i32::MAX as _),
        unsan.1.clamp(0, i32::MAX as _),
    ))
}

pub fn uuid_str(uuid: &(u32, u32)) -> String {
    format!("{}_{}", uuid.0, uuid.1)
}

pub fn str_to_uuid(s: &str) -> Option<(u32, u32)> {
    if let Some((uuid_0, uuid_1)) = s.split_once('_') {
        let uuid_0 = if let Ok(uuid_0) = uuid_0.parse() {
            uuid_0
        } else {
            return None;
        };
        let uuid_1 = if let Ok(uuid_1) = uuid_1.parse() {
            uuid_1
        } else {
            return None;
        };
        Some((uuid_0, uuid_1))
    } else {
        None
    }
}

pub fn i64_as_uuid_str(num: i64) -> String {
    uuid_str(&i64_split(num))
}

pub fn i64_split(num: i64) -> (u32, u32) {
    let bytes = (num as u64).to_le_bytes();
    (
        u32::from_le_bytes([bytes[0], bytes[1], bytes[2], bytes[3]]),
        u32::from_le_bytes([bytes[4], bytes[5], bytes[6], bytes[7]])
    )
}

pub fn i64_join(uuid: (u32, u32)) -> i64 {
    let bytes = (uuid.0.to_le_bytes(), uuid.1.to_le_bytes());
    u64::from_le_bytes(
        [bytes.0[0], bytes.0[1], bytes.0[2], bytes.0[3],
        bytes.1[0], bytes.1[1], bytes.1[2], bytes.1[3]]
    ) as i64
}

pub fn str_to_i64(s :&str) -> Option<i64> {
    str_to_uuid(s).map(i64_join)
}