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use crate::Data;
use crate::serde::DataError;
use serde::{Serialize, Deserialize};
use std::any::{TypeId, Any};


impl Data{
    pub fn msgpack_to<'a,T:Deserialize<'a>>(&'a mut self) ->Result<T,DataError>{
        rmp_serde::decode::from_read_ref(&self[..]).map_err(|err| DataError::Other(err.into()))
    }

    pub fn msgpack_from<T: Serialize>(value:T) ->Result<Data, DataError> {
        Ok(rmp_serde::encode::to_vec(&value).map_err(|err|DataError::Other(err.into()))?.into())
    }

    pub fn msgpack_deserialize<'a,T:Deserialize<'a>+'static>(&'a mut self)->Result<T,DataError> {
        let typeid = TypeId::of::<T>();

        if typeid == TypeId::of::<bool>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<i8>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<u8>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<i16>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<u16>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<i32>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<u32>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<i64>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<u64>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<f32>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<f32>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<Vec<u8>>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<&[u8]>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<&str>() {
            self.serde_deserialize()
        } else if typeid == TypeId::of::<String>() {
            self.serde_deserialize()
        } else {
            let len = self.get_le::<u32>()? as usize;
            let start = self.offset;
            if !self.set_position(start + len) {
                return Err(DataError::Str(format!("index overflow {}", line!())))
            }
            rmp_serde::decode::from_read_ref(&self[start..self.offset]).map_err(|err| DataError::Other(err.into()))
        }
    }

    pub fn msgpack_serialize<T:Serialize+'static>(&mut self,value:T)->Result<(), DataError>{
        let typeid =value.type_id();
        if typeid == TypeId::of::<bool>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<i8>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<u8>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<i16>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<u16>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<i32>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<u32>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<i64>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<u64>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<f32>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<f32>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<Vec<u8>>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<&[u8]>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<&str>() {
            self.serde_serialize(value)
        } else if typeid == TypeId::of::<String>() {
            self.serde_serialize(value)
        } else {
            let buff = rmp_serde::encode::to_vec(&value).map_err(|err| DataError::Other(err.into()))?;
            self.serde_serialize(buff)
        }
    }
}