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    use super::{DEVICE_ID_LENGTH, TOKEN_LENGTH};
    use crate::{database::DatabaseGuard, utils, ConduitResult, Error, Ruma};
    
    use ruma::{
        api::client::{
            error::ErrorKind,
            r0::session::{get_login_types, login, logout, logout_all},
        },
        UserId,
    };
    
    use serde::Deserialize;
    
    
    #[derive(Debug, Deserialize)]
    struct Claims {
        sub: String,
        exp: usize,
    }
    
    
    #[cfg(feature = "conduit_bin")]
    use rocket::{get, post};
    
    
    /// # `GET /_matrix/client/r0/login`
    ///
    /// Get the homeserver's supported login types. One of these should be used as the `type` field
    /// when logging in.
    
    #[cfg_attr(feature = "conduit_bin", get("/_matrix/client/r0/login"))]
    
    #[tracing::instrument]
    
    pub async fn get_login_types_route() -> ConduitResult<get_login_types::Response> {
    
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        Ok(
            get_login_types::Response::new(vec![get_login_types::LoginType::Password(
                Default::default(),
            )])
            .into(),
        )
    
    /// # `POST /_matrix/client/r0/login`
    ///
    /// Authenticates the user and returns an access token it can use in subsequent requests.
    ///
    /// - The returned access token is associated with the user and device
    /// - Old access tokens of that device should be invalidated
    /// - If `device_id` is unknown, a new device will be created
    ///
    /// Note: You can use [`GET /_matrix/client/r0/login`](fn.get_supported_versions_route.html) to see
    /// supported login types.
    
    #[cfg_attr(
        feature = "conduit_bin",
        post("/_matrix/client/r0/login", data = "<body>")
    )]
    
    #[tracing::instrument(skip(db, body))]
    
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        db: DatabaseGuard,
    
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        body: Ruma<login::Request<'_>>,
    
    ) -> ConduitResult<login::Response> {
        // Validate login method
    
        // TODO: Other login methods
        let user_id = match &body.login_info {
    
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            login::IncomingLoginInfo::Password {
                identifier,
                password,
            } => {
                let username = if let login::IncomingUserIdentifier::MatrixId(matrix_id) = identifier {
    
                    matrix_id
                } else {
                    return Err(Error::BadRequest(ErrorKind::Forbidden, "Bad login type."));
                };
                let user_id =
                    UserId::parse_with_server_name(username.to_owned(), db.globals.server_name())
                        .map_err(|_| {
                            Error::BadRequest(ErrorKind::InvalidUsername, "Username is invalid.")
                        })?;
                let hash = db.users.password_hash(&user_id)?.ok_or(Error::BadRequest(
                    ErrorKind::Forbidden,
                    "Wrong username or password.",
                ))?;
    
    
                if hash.is_empty() {
                    return Err(Error::BadRequest(
                        ErrorKind::UserDeactivated,
    
                        "The user has been deactivated",
    
                let hash_matches = argon2::verify_encoded(&hash, password.as_bytes()).unwrap_or(false);
    
    
                if !hash_matches {
    
                    return Err(Error::BadRequest(
                        ErrorKind::Forbidden,
                        "Wrong username or password.",
                    ));
    
            }
            login::IncomingLoginInfo::Token { token } => {
                if let Some(jwt_decoding_key) = db.globals.jwt_decoding_key() {
                    let token = jsonwebtoken::decode::<Claims>(
                        &token,
                        &jwt_decoding_key,
                        &jsonwebtoken::Validation::default(),
                    )
                    .map_err(|_| Error::BadRequest(ErrorKind::InvalidUsername, "Token is invalid."))?;
                    let username = token.claims.sub;
                    UserId::parse_with_server_name(username, db.globals.server_name()).map_err(
                        |_| Error::BadRequest(ErrorKind::InvalidUsername, "Username is invalid."),
                    )?
                } else {
                    return Err(Error::BadRequest(
                        ErrorKind::Unknown,
                        "Token login is not supported (server has no jwt decoding key).",
                    ));
                }
            }
        };
    
    
        // Generate new device id if the user didn't specify one
        let device_id = body
            .device_id
            .clone()
            .unwrap_or_else(|| utils::random_string(DEVICE_ID_LENGTH).into());
    
        // Generate a new token for the device
        let token = utils::random_string(TOKEN_LENGTH);
    
    
        // Determine if device_id was provided and exists in the db for this user
        let device_exists = body.device_id.as_ref().map_or(false, |device_id| {
            db.users
                .all_device_ids(&user_id)
    
                .any(|x| x.as_ref().map_or(false, |v| v == device_id))
    
        if device_exists {
            db.users.set_token(&user_id, &device_id, &token)?;
        } else {
    
            db.users.create_device(
                &user_id,
                &device_id,
                &token,
                body.initial_device_display_name.clone(),
            )?;
        }
    
        info!("{} logged in", user_id);
    
    
        Ok(login::Response {
            user_id,
            access_token: token,
            home_server: Some(db.globals.server_name().to_owned()),
            device_id,
            well_known: None,
        }
        .into())
    }
    
    
    /// # `POST /_matrix/client/r0/logout`
    ///
    /// Log out the current device.
    ///
    /// - Invalidates the access token
    /// - Deletes the device and most of it's data (to-device events, last seen, etc.)
    
    #[cfg_attr(
        feature = "conduit_bin",
        post("/_matrix/client/r0/logout", data = "<body>")
    )]
    
    #[tracing::instrument(skip(db, body))]
    
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        db: DatabaseGuard,
    
        body: Ruma<logout::Request>,
    ) -> ConduitResult<logout::Response> {
    
        let sender_user = body.sender_user.as_ref().expect("user is authenticated");
        let sender_device = body.sender_device.as_ref().expect("user is authenticated");
    
        db.users.remove_device(&sender_user, sender_device)?;
    
        Ok(logout::Response::new().into())
    
    /// # `POST /_matrix/client/r0/logout/all`
    ///
    /// Log out all devices of this user.
    ///
    /// - Invalidates all access tokens
    /// - Deletes devices and most of their data (to-device events, last seen, etc.)
    ///
    /// Note: This is equivalent to calling [`GET /_matrix/client/r0/logout`](fn.logout_route.html)
    /// from each device of this user.
    
    #[cfg_attr(
        feature = "conduit_bin",
        post("/_matrix/client/r0/logout/all", data = "<body>")
    )]
    
    #[tracing::instrument(skip(db, body))]
    
    pub async fn logout_all_route(
    
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        db: DatabaseGuard,
    
        body: Ruma<logout_all::Request>,
    ) -> ConduitResult<logout_all::Response> {
    
        let sender_user = body.sender_user.as_ref().expect("user is authenticated");
    
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        for device_id in db.users.all_device_ids(sender_user).flatten() {
            db.users.remove_device(&sender_user, &device_id)?;
    
        Ok(logout_all::Response::new().into())