use std::collections::{btree_map::Range, HashMap};
use zbus::{message::Body, Result};
use zvariant::OwnedValue;

pub struct Notification {
    // A notificaion object
    app_name: String,                   // The application that sent the notification
    replace_id: u32, // (Optional) ID of an existing notification to be updated, replaced by this
    icon: String, // See icon specifications: https://specifications.freedesktop.org/notification-spec/latest/icons-and-images.html
    summary: String, // Notification title
    body: String, // Notification content/body
    actions: Vec<String>, // Action requests that can be sent back to the client -
    hints: HashMap<String, OwnedValue>, // Extra useful data - notif type, urgency, sound file, icon data, etc.
    expir_timeout: i32,                 // Seconds till this notif expires. Optional
}

impl Notification {
    pub fn urgency(&self) -> String {
        // Obtain urgency
        match self.hints.get("urgency") {
            Some(value) => {
                // Attempt to convert OwnedValue to u8
                match u8::try_from(value) {
                    Ok(0) => "Low".to_string(),
                    Ok(1) => "Normal".to_string(),
                    Ok(2) => "Critical".to_string(),
                    _ => "Other".to_string(), // There are no accepted values other that these 3
                }
            }
            None => "Unknown".to_string(), // This possibly never occurs, or something might be wrong
        }
    }

    pub fn actions(&self) -> HashMap<String, String> {
        let mut acts: HashMap<String, String>;
        for i in Range(self.actions.len()) {
            
        }
    }
}

pub fn to_notif(msg_body: &Body) -> Result<Notification> {
    // Convert the DBus message body into Notification
    let (app_name, replace_id, icon, summary, body, actions, hints, expir_timeout) =
        msg_body.deserialize()?; // Deserialized into a tuple
    Ok(Notification {
        // Make a Notification object from the obtained tuple
        app_name,
        replace_id,
        icon,
        summary,
        body,
        actions,
        hints,
        expir_timeout,
    })
}

pub fn print_notif(notif: &Notification) {
    println!("App Name: {0}", notif.app_name);
    println!("Replace ID: {0}", notif.replace_id);
    println!("Icon: {0}", notif.icon);
    println!("Summary: {0}", notif.summary);
    println!("Body: {0}", notif.body);
    println!("Actions: {0:?}", notif.actions);
    println!("Hints:");
    for (key, value) in &notif.hints {
        println!("  {key}: {value:?}");
    }
    println!("Expiration Timeout: {0} seconds", notif.expir_timeout);
}