telegram-rs-2 0.1.1

//! InitData parsing and validation for Telegram Mini Apps
//!
//! This module handles the validation and parsing of Telegram's initData,
//! which is used to securely transmit app launch data from Telegram to the Mini App.

use serde::{Deserialize, Serialize};
use crate::Result;

/// Represents the parsed initData from Telegram
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct InitData {
    /// Query ID for validation
    pub query_id: String,
    /// User information
    pub user: Option<UserData>,
    /// Authentication data hash
    pub auth_date: i32,
    /// HMAC signature for verification
    pub hash: String,
}

/// User information from initData
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct UserData {
    /// User ID
    pub id: i64,
    /// Whether the user is a bot
    pub is_bot: bool,
    /// User's first name
    pub first_name: String,
    /// User's last name
    pub last_name: Option<String>,
    /// User's username
    pub username: Option<String>,
    /// User's language code
    pub language_code: Option<String>,
}

impl InitData {
    /// Parse initData from a raw string
    /// TODO: Implement parsing logic
    pub fn parse(raw_data: &str) -> Result<Self> {
        todo!("InitData parsing not yet implemented")
    }

    /// Validate initData with the bot token
    /// TODO: Implement validation using HMAC-SHA256
    pub fn validate(&self, bot_token: &str) -> Result<bool> {
        todo!("InitData validation not yet implemented")
    }

    /// Get user information if available
    pub fn get_user(&self) -> Option<&UserData> {
        self.user.as_ref()
    }

    /// Check if initData is still valid (not expired)
    /// TODO: Implement expiration check
    pub fn is_valid_timestamp(&self) -> bool {
        // initData is typically valid for about 5 minutes
        todo!("Timestamp validation not yet implemented")
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_init_data_structure() {
        let user_data = UserData {
            id: 123456,
            is_bot: false,
            first_name: "John".to_string(),
            last_name: Some("Doe".to_string()),
            username: Some("johndoe".to_string()),
            language_code: Some("en".to_string()),
        };

        let init_data = InitData {
            query_id: "query123".to_string(),
            user: Some(user_data),
            auth_date: 1234567890,
            hash: "abc123hash".to_string(),
        };

        assert_eq!(init_data.query_id, "query123");
        assert!(init_data.user.is_some());
    }
}