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use crate::{
    types::{LongLongUInt, LongUInt, ShortString, ShortUInt},
    BasicProperties, Result,
};

/// Type wrapping the output of a consumer
///
/// - Ok(Some(delivery)) carries the delivery
/// - Ok(None) means that the consumer got canceled
/// - Err(error) carries the error and is always followed by Ok(None)
pub type DeliveryResult = Result<Option<Delivery>>;

#[derive(Clone, Debug, PartialEq)]
pub struct Delivery {
    pub delivery_tag: LongLongUInt,
    pub exchange: ShortString,
    pub routing_key: ShortString,
    pub redelivered: bool,
    pub properties: BasicProperties,
    pub data: Vec<u8>,
}

impl Delivery {
    pub(crate) fn new(
        delivery_tag: LongLongUInt,
        exchange: ShortString,
        routing_key: ShortString,
        redelivered: bool,
    ) -> Self {
        Self {
            delivery_tag,
            exchange,
            routing_key,
            redelivered,
            properties: BasicProperties::default(),
            data: Vec::new(),
        }
    }

    pub(crate) fn receive_content(&mut self, data: Vec<u8>) {
        self.data.extend(data);
    }
}

#[derive(Clone, Debug, PartialEq)]
pub struct BasicGetMessage {
    pub delivery: Delivery,
    pub message_count: LongUInt,
}

impl BasicGetMessage {
    pub(crate) fn new(
        delivery_tag: LongLongUInt,
        exchange: ShortString,
        routing_key: ShortString,
        redelivered: bool,
        message_count: LongUInt,
    ) -> Self {
        Self {
            delivery: Delivery::new(delivery_tag, exchange, routing_key, redelivered),
            message_count,
        }
    }
}

#[derive(Clone, Debug, PartialEq)]
pub struct BasicReturnMessage {
    pub delivery: Delivery,
    pub reply_code: ShortUInt,
    pub reply_text: ShortString,
}

impl BasicReturnMessage {
    pub(crate) fn new(
        exchange: ShortString,
        routing_key: ShortString,
        reply_code: ShortUInt,
        reply_text: ShortString,
    ) -> Self {
        Self {
            delivery: Delivery::new(0, exchange, routing_key, false),
            reply_code,
            reply_text,
        }
    }
}