use serde::{ser, Serialize};

use crate::Nbt;

use std;
use std::fmt::{self, Display};

use serde::de;

pub type Result<T> = std::result::Result<T, Error>;

// This is a bare-bones implementation. A real library would provide additional
// information in its error type, for example the line and column at which the
// error occurred, the byte offset into the input, or the current key being
// processed.
#[derive(Debug)]
pub enum Error {
    Message(String),
}

impl Display for Error {
    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
        match self {
            Error::Message(msg) => formatter.write_str(msg),
        }
    }
}

impl ser::Error for Error {
    fn custom<T: Display>(msg: T) -> Self {
        Error::Message(msg.to_string())
    }
}

impl de::Error for Error {
    fn custom<T: Display>(msg: T) -> Self {
        Error::Message(msg.to_string())
    }
}

impl std::error::Error for Error {}

impl<'a> ser::Serializer for &'a mut Nbt {
    type Ok = ();

    type Error = Error;

    type SerializeSeq = Self;

    type SerializeTuple = Self;

    type SerializeTupleStruct = Self;

    type SerializeTupleVariant = Self;

    type SerializeMap = Self;

    type SerializeStruct = Self;

    type SerializeStructVariant = Self;

    fn serialize_bool(self, v: bool) -> Result<()> {
        todo!()
    }

    fn serialize_i8(self, v: i8) -> Result<()> {
        todo!()
    }

    fn serialize_i16(self, v: i16) -> Result<()> {
        todo!()
    }

    fn serialize_i32(self, v: i32) -> Result<()> {
        todo!()
    }

    fn serialize_i64(self, v: i64) -> Result<()> {
        todo!()
    }

    fn serialize_u8(self, v: u8) -> Result<()> {
        todo!()
    }

    fn serialize_u16(self, v: u16) -> Result<()> {
        todo!()
    }

    fn serialize_u32(self, v: u32) -> Result<()> {
        todo!()
    }

    fn serialize_u64(self, v: u64) -> Result<()> {
        todo!()
    }

    fn serialize_f32(self, v: f32) -> Result<()> {
        todo!()
    }

    fn serialize_f64(self, v: f64) -> Result<()> {
        todo!()
    }

    fn serialize_char(self, v: char) -> Result<()> {
        todo!()
    }

    fn serialize_str(self, v: &str) -> Result<()> {
        todo!()
    }

    fn serialize_bytes(self, v: &[u8]) -> Result<()> {
        todo!()
    }

    fn serialize_none(self) -> Result<()> {
        todo!()
    }

    fn serialize_some<T: ?Sized>(self, value: &T) -> Result<()>
    where
        T: Serialize,
    {
        todo!()
    }

    fn serialize_unit(self) -> Result<()> {
        todo!()
    }

    fn serialize_unit_struct(self, name: &'static str) -> Result<()> {
        todo!()
    }

    fn serialize_unit_variant(
        self,
        name: &'static str,
        variant_index: u32,
        variant: &'static str,
    ) -> Result<()> {
        todo!()
    }

    fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<()>
    where
        T: Serialize,
    {
        todo!()
    }

    fn serialize_newtype_variant<T: ?Sized>(
        self,
        name: &'static str,
        variant_index: u32,
        variant: &'static str,
        value: &T,
    ) -> Result<()>
    where
        T: Serialize,
    {
        todo!()
    }

    fn serialize_seq(self, len: Option<usize>) -> Result<()> {
        todo!()
    }

    fn serialize_tuple(self, len: usize) -> Result<()> {
        todo!()
    }

    fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<()> {
        todo!()
    }

    fn serialize_tuple_variant(
        self,
        name: &'static str,
        variant_index: u32,
        variant: &'static str,
        len: usize,
    ) -> Result<()> {
        todo!()
    }

    fn serialize_map(self, len: Option<usize>) -> Result<()> {
        todo!()
    }

    fn serialize_struct(self, name: &'static str, len: usize) -> Result<()> {
        todo!()
    }

    fn serialize_struct_variant(
        self,
        name: &'static str,
        variant_index: u32,
        variant: &'static str,
        len: usize,
    ) -> Result<()> {
        todo!()
    }
}