use serde::Deserialize;
use std::path::Path;

#[derive(Debug, Clone, Deserialize)]
pub struct SyncConfig {
    /// Base URL of the local CAN service (e.g. "http://127.0.0.1:3210")
    pub can_service_url: String,

    /// API key for CAN service's sync endpoints (must match config.sync_api_key)
    pub sync_api_key: String,

    /// Shared passphrase for peer discovery (all peers must use the same one)
    pub sync_passphrase: String,

    /// Seconds between polls for new local assets
    #[serde(default = "default_poll_interval")]
    pub poll_interval_secs: u64,

    /// Optional: path to write this node's ticket to (for direct connection)
    #[serde(default)]
    pub ticket_file: Option<String>,

    /// Optional: path to a file containing a peer's node ticket (for direct connection).
    /// If set, the agent will read this ticket and connect directly instead of waiting
    /// for gossip discovery. The file is polled until it exists and is non-empty.
    #[serde(default)]
    pub connect_ticket_file: Option<String>,
}

fn default_poll_interval() -> u64 {
    3
}

impl SyncConfig {
    pub fn load(path: &Path) -> anyhow::Result<Self> {
        let contents = std::fs::read_to_string(path)?;
        let config: Self = serde_yaml::from_str(&contents)?;
        Ok(config)
    }
}