actix-telegram 0.1.0

use crate::types::*;

/// This object represents one special entity in a text message. For example, hashtags, usernames, URLs, etc.
#[derive(Debug, Deserialize, Clone, Getters)]
#[get(vis = "pub")]
pub struct MessageEntity {
    /// Type of the entity. Can be mention (@username), hashtag, cashtag, bot_command, url, email, phone_number, bold (bold text), italic (italic text), code (monowidth string), pre (monowidth block), text_link (for clickable text URLs), text_mention (for users without usernames)
    #[serde(rename = "type")]
    pub(crate) type_: MessageEntityType,
    /// Offset in UTF-16 code units to the start of the entity
    pub(crate) offset: Integer,
    /// Length of the entity in UTF-16 code units
    pub(crate) length: Integer,
    /// For “text_link” only, url that will be opened after user taps on the text
    #[serde(skip_serializing_if = "Option::is_none")]
    pub(crate) url: Option<String>,
    /// For “text_mention” only, the mentioned user
    #[serde(skip_serializing_if = "Option::is_none")]
    pub(crate) user: Option<User>,
}

/// Type of the entity. Can be mention (@username), hashtag, cashtag, bot_command, url, email, phone_number, bold (bold text), italic (italic text), code (monowidth string), pre (monowidth block), text_link (for clickable text URLs), text_mention (for users without usernames)
#[derive(Debug, Deserialize, Clone, PartialEq)]
#[serde(rename_all = "snake_case")]
pub enum MessageEntityType {
    Mention,
    Hashtag,
    Cashtag,
    BotCommand,
    Url,
    Email,
    PhoneNumber,
    Bold,
    Italic,
    Code,
    Pre,
    TextLink,
    TextMention,
}

impl MessageEntity {
    #[inline]
    pub fn text(&self, text: &str) -> String {
        String::from_utf16_lossy(
            &text
                .encode_utf16()
                .skip(self.offset as usize)
                .take(self.length as usize)
                .collect::<Vec<u16>>(),
        )
    }

    #[inline(always)]
    pub unsafe fn unsafe_text<'a>(&self, text: &'a str) -> &'a str {
        text.get_unchecked(self.offset as usize..self.length as usize)
    }
}