rust-tdlib 0.4.3

TDlib (Telegram Database library) client
Documentation 
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use crate::errors::Result;
use crate::types::*;
use uuid::Uuid;

/// Contains information about a message in a specific position
#[derive(Debug, Clone, Default, Serialize, Deserialize)]
pub struct MessagePosition {
    #[doc(hidden)]
    #[serde(rename(serialize = "@extra", deserialize = "@extra"))]
    extra: Option<String>,
    #[serde(rename(serialize = "@client_id", deserialize = "@client_id"))]
    client_id: Option<i32>,
    /// 0-based message position in the full list of suitable messages

    #[serde(default)]
    position: i32,
    /// Message identifier

    #[serde(default)]
    message_id: i64,
    /// Point in time (Unix timestamp) when the message was sent

    #[serde(default)]
    date: i32,
}

impl RObject for MessagePosition {
    #[doc(hidden)]
    fn extra(&self) -> Option<&str> {
        self.extra.as_deref()
    }
    #[doc(hidden)]
    fn client_id(&self) -> Option<i32> {
        self.client_id
    }
}

impl MessagePosition {
    pub fn from_json<S: AsRef<str>>(json: S) -> Result<Self> {
        Ok(serde_json::from_str(json.as_ref())?)
    }
    pub fn builder() -> MessagePositionBuilder {
        let mut inner = MessagePosition::default();
        inner.extra = Some(Uuid::new_v4().to_string());

        MessagePositionBuilder { inner }
    }

    pub fn position(&self) -> i32 {
        self.position
    }

    pub fn message_id(&self) -> i64 {
        self.message_id
    }

    pub fn date(&self) -> i32 {
        self.date
    }
}

#[doc(hidden)]
pub struct MessagePositionBuilder {
    inner: MessagePosition,
}

#[deprecated]
pub type RTDMessagePositionBuilder = MessagePositionBuilder;

impl MessagePositionBuilder {
    pub fn build(&self) -> MessagePosition {
        self.inner.clone()
    }

    pub fn position(&mut self, position: i32) -> &mut Self {
        self.inner.position = position;
        self
    }

    pub fn message_id(&mut self, message_id: i64) -> &mut Self {
        self.inner.message_id = message_id;
        self
    }

    pub fn date(&mut self, date: i32) -> &mut Self {
        self.inner.date = date;
        self
    }
}

impl AsRef<MessagePosition> for MessagePosition {
    fn as_ref(&self) -> &MessagePosition {
        self
    }
}

impl AsRef<MessagePosition> for MessagePositionBuilder {
    fn as_ref(&self) -> &MessagePosition {
        &self.inner
    }
}