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#![cfg(feature = "serde")]

use Cidr;
use cidr::{AnyIpCidr, IpCidr, Ipv4Cidr, Ipv6Cidr};
use serde;
use serde_common;
use std::net::IpAddr;

static NAME_IPV4_CIDR: &str = "Ipv4Cidr";

impl serde::Serialize for Ipv4Cidr {
	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
	where
		S: serde::Serializer,
	{
		if serializer.is_human_readable() {
			serializer.serialize_str(&format!("{}", self))
		} else {
			serde_common::serialize_v4(
				serializer,
				NAME_IPV4_CIDR,
				(self.address, self.network_length),
			)
		}
	}
}

impl<'de> serde::Deserialize<'de> for Ipv4Cidr {
	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
	where
		D: serde::Deserializer<'de>,
	{
		if deserializer.is_human_readable() {
			let s = String::deserialize(deserializer)?;
			s.parse().map_err(serde::de::Error::custom)
		} else {
			let (addr, network_length) =
				serde_common::deserialize_v4(deserializer, NAME_IPV4_CIDR)?;
			Ipv4Cidr::new(addr, network_length)
				.map_err(serde::de::Error::custom)
		}
	}
}

static NAME_IPV6_CIDR: &str = "Ipv6Cidr";

impl serde::Serialize for Ipv6Cidr {
	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
	where
		S: serde::Serializer,
	{
		if serializer.is_human_readable() {
			serializer.serialize_str(&format!("{}", self))
		} else {
			serde_common::serialize_v6(
				serializer,
				NAME_IPV6_CIDR,
				(self.address, self.network_length),
			)
		}
	}
}

impl<'de> serde::Deserialize<'de> for Ipv6Cidr {
	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
	where
		D: serde::Deserializer<'de>,
	{
		if deserializer.is_human_readable() {
			let s = String::deserialize(deserializer)?;
			s.parse().map_err(serde::de::Error::custom)
		} else {
			let (addr, network_length) =
				serde_common::deserialize_v6(deserializer, NAME_IPV6_CIDR)?;
			Ipv6Cidr::new(addr, network_length)
				.map_err(serde::de::Error::custom)
		}
	}
}

static NAME_IP_CIDR: &str = "IpCidr";

impl serde::Serialize for IpCidr {
	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
	where
		S: serde::Serializer,
	{
		if serializer.is_human_readable() {
			serializer.serialize_str(&format!("{}", self))
		} else {
			let data = match *self {
				IpCidr::V4(ref c) => (IpAddr::V4(c.address), c.network_length),
				IpCidr::V6(ref c) => (IpAddr::V6(c.address), c.network_length),
			};
			serde_common::serialize(serializer, NAME_IP_CIDR, data)
		}
	}
}

impl<'de> serde::Deserialize<'de> for IpCidr {
	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
	where
		D: serde::Deserializer<'de>,
	{
		if deserializer.is_human_readable() {
			let s = String::deserialize(deserializer)?;
			s.parse().map_err(serde::de::Error::custom)
		} else {
			let (addr, network_length) =
				serde_common::deserialize(deserializer, NAME_IP_CIDR)?;
			IpCidr::new(addr, network_length).map_err(serde::de::Error::custom)
		}
	}
}

static NAME_ANY_IP_CIDR: &str = "AnyIpCidr";

impl serde::Serialize for AnyIpCidr {
	fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
	where
		S: serde::Serializer,
	{
		if serializer.is_human_readable() {
			serializer.serialize_str(&format!("{}", self))
		} else {
			let data = match *self {
				AnyIpCidr::Any => None,
				AnyIpCidr::V4(ref c) => {
					Some((IpAddr::V4(c.address), c.network_length))
				},
				AnyIpCidr::V6(ref c) => {
					Some((IpAddr::V6(c.address), c.network_length))
				},
			};
			serde_common::serialize_any(serializer, NAME_ANY_IP_CIDR, data)
		}
	}
}

impl<'de> serde::Deserialize<'de> for AnyIpCidr {
	fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
	where
		D: serde::Deserializer<'de>,
	{
		if deserializer.is_human_readable() {
			let s = String::deserialize(deserializer)?;
			s.parse().map_err(serde::de::Error::custom)
		} else {
			match serde_common::deserialize_any(deserializer, NAME_ANY_IP_CIDR)?
			{
				None => Ok(AnyIpCidr::Any),
				Some((addr, network_length)) => {
					AnyIpCidr::new(addr, network_length)
						.map_err(serde::de::Error::custom)
				},
			}
		}
	}
}

#[cfg(test)]
mod tests;