//! Types for EPP host info request

use std::net::IpAddr;
use std::str::FromStr;

use chrono::{DateTime, Utc};
use serde::{Deserialize, Serialize};

use super::XMLNS;
use crate::common::{HostAddr, NoExtension, ObjectStatus, StringValue};
use crate::request::{Command, Transaction};

impl<'a> Transaction<NoExtension> for HostInfo<'a> {}

impl<'a> Command for HostInfo<'a> {
    type Response = HostInfoResponse;
    const COMMAND: &'static str = "info";
}

impl<'a> HostInfo<'a> {
    pub fn new(name: &'a str) -> Self {
        Self {
            info: HostInfoRequestData {
                xmlns: XMLNS,
                name: name.into(),
            },
        }
    }
}

// Request

/// Type for data under the host &lt;info&gt; tag
#[derive(Serialize, Debug)]
pub struct HostInfoRequestData<'a> {
    /// XML namespace for host commands
    #[serde(rename = "xmlns:host")]
    xmlns: &'a str,
    /// The name of the host to be queried
    #[serde(rename = "host:name")]
    name: StringValue<'a>,
}

#[derive(Serialize, Debug)]
/// Type for EPP XML &lt;info&gt; command for hosts
pub struct HostInfo<'a> {
    /// The instance holding the data for the host query
    #[serde(rename = "host:info")]
    info: HostInfoRequestData<'a>,
}

// Response

/// Type that represents the &lt;infData&gt; tag for host info response
#[derive(Deserialize, Debug)]
pub struct HostInfoResponseData {
    /// The host name
    pub name: StringValue<'static>,
    /// The host ROID
    pub roid: StringValue<'static>,
    /// The list of host statuses
    #[serde(rename = "status")]
    pub statuses: Vec<ObjectStatus<'static>>,
    /// The list of host IP addresses
    #[serde(rename = "addr", deserialize_with = "deserialize_host_addrs")]
    pub addresses: Vec<IpAddr>,
    /// The epp user to whom the host belongs
    #[serde(rename = "clID")]
    pub client_id: StringValue<'static>,
    /// THe epp user that created the host
    #[serde(rename = "crID")]
    pub creator_id: StringValue<'static>,
    /// The host creation date
    #[serde(rename = "crDate")]
    pub created_at: DateTime<Utc>,
    /// The epp user that last updated the host
    #[serde(rename = "upID")]
    pub updater_id: Option<StringValue<'static>>,
    /// The host last update date
    #[serde(rename = "upDate")]
    pub updated_at: Option<DateTime<Utc>>,
    /// The host transfer date
    #[serde(rename = "trDate")]
    pub transferred_at: Option<DateTime<Utc>>,
}

fn deserialize_host_addrs<'de, D>(de: D) -> Result<Vec<IpAddr>, D::Error>
where
    D: serde::de::Deserializer<'de>,
{
    let addrs = Vec::<HostAddr<'static>>::deserialize(de)?;
    addrs
        .into_iter()
        .map(|addr| IpAddr::from_str(&addr.address))
        .collect::<Result<_, _>>()
        .map_err(|e| serde::de::Error::custom(format!("{}", e)))
}

/// Type that represents the &lt;resData&gt; tag for host info response
#[derive(Deserialize, Debug)]
pub struct HostInfoResponse {
    /// Data under the &lt;infData&gt; tag
    #[serde(rename = "infData")]
    pub info_data: HostInfoResponseData,
}

#[cfg(test)]
mod tests {
    use chrono::{TimeZone, Utc};

    use super::{HostInfo, IpAddr};
    use crate::response::ResultCode;
    use crate::tests::{assert_serialized, response_from_file, CLTRID, SUCCESS_MSG, SVTRID};

    #[test]
    fn command() {
        let object = HostInfo::new("ns1.eppdev-1.com");
        assert_serialized("request/host/info.xml", &object);
    }

    #[test]
    fn response() {
        let object = response_from_file::<HostInfo>("response/host/info.xml");
        let result = object.res_data().unwrap();

        assert_eq!(object.result.code, ResultCode::CommandCompletedSuccessfully);
        assert_eq!(object.result.message, SUCCESS_MSG.into());
        assert_eq!(result.info_data.name, "host2.eppdev-1.com".into());
        assert_eq!(result.info_data.roid, "UNDEF-ROID".into());
        assert_eq!(result.info_data.statuses[0].status, "ok".to_string());
        assert_eq!(
            result.info_data.addresses[0],
            IpAddr::from([29, 245, 122, 14])
        );
        assert_eq!(
            result.info_data.addresses[1],
            IpAddr::from([0x2404, 0x6800, 0x4001, 0x801, 0, 0, 0, 0x200e])
        );
        assert_eq!(result.info_data.client_id, "eppdev".into());
        assert_eq!(result.info_data.creator_id, "creator".into());
        assert_eq!(
            result.info_data.created_at,
            Utc.ymd(2021, 7, 26).and_hms(5, 28, 55)
        );
        assert_eq!(
            *(result.info_data.updater_id.as_ref().unwrap()),
            "creator".into()
        );
        assert_eq!(
            result.info_data.updated_at,
            Some(Utc.ymd(2021, 7, 26).and_hms(5, 28, 55))
        );
        assert_eq!(object.tr_ids.client_tr_id.unwrap(), CLTRID.into());
        assert_eq!(object.tr_ids.server_tr_id, SVTRID.into());
    }
}