plexus-comms 0.1.1

use super::types::*;
use crate::config::WhatsappConfig;
use async_stream::stream;
use futures::Stream;

// Required for macro-generated code
use plexus_core::plexus;
use plexus_core::serde_helpers;

#[derive(Clone)]
pub struct Whatsapp {
    config: WhatsappConfig,
    client: reqwest::Client,
}

impl Whatsapp {
    pub async fn new(config: WhatsappConfig) -> Result<Self, String> {
        Ok(Self {
            config,
            client: reqwest::Client::new(),
        })
    }
}

#[plexus_macros::hub_methods(
    namespace = "whatsapp",
    version = "1.0.0",
    description = "Send and receive WhatsApp messages via Business API"
)]
impl Whatsapp {
    #[plexus_macros::hub_method(
        description = "Send a WhatsApp message",
        params(
            to = "Recipient phone number (E.164 format)",
            message = "Message content (text, template, or media)"
        )
    )]
    async fn send_message(
        &self,
        to: String,
        message: MessageContent,
    ) -> impl Stream<Item = SendMessageEvent> + Send + 'static {
        let _params = SendMessageParams {
            to: to.clone(),
            message,
        };

        stream! {
            // WhatsApp Business API implementation would go here
            yield SendMessageEvent::Sent {
                message_id: uuid::Uuid::new_v4().to_string(),
                to,
            };
        }
    }

    #[plexus_macros::hub_method(
        streaming,
        description = "Listen for incoming webhook events (messages, status updates)"
    )]
    async fn listen_webhooks(&self) -> impl Stream<Item = WebhookEvent> + Send + 'static {
        stream! {
            // WhatsApp webhook handling would go here
            yield WebhookEvent::Error {
                message: "Not implemented yet".to_string(),
            };
        }
    }
}