use serde::{Deserialize, Serialize};

use crate::arguments::SqliteArgumentsBuffer;

use crate::decode::Decode;

use crate::encode::{Encode, IsNull};

use crate::error::BoxDynError;

use crate::types::{Json, Type};

use crate::{type_info::DataType, Sqlite, SqliteTypeInfo, SqliteValueRef};

impl<T> Type<Sqlite> for Json<T> {

fn type_info() -> SqliteTypeInfo {

SqliteTypeInfo(DataType::Text)

}

fn compatible(ty: &SqliteTypeInfo) -> bool {

<&str as Type<Sqlite>>::compatible(ty)

}

}

impl<T> Encode<'_, Sqlite> for Json<T>

where

T: Serialize,

{

fn encode_by_ref(&self, buf: &mut SqliteArgumentsBuffer) -> Result<IsNull, BoxDynError> {

Encode::<Sqlite>::encode(self.encode_to_string()?, buf)

}

}

impl<'r, T> Decode<'r, Sqlite> for Json<T>

where

T: 'r + Deserialize<'r>,

{

fn decode(value: SqliteValueRef<'r>) -> Result<Self, BoxDynError> {

// Saves a pass over the data by making `serde_json` check UTF-8.

Self::decode_from_bytes(Decode::<Sqlite>::decode(value)?)

}

}