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use bson::{Binary, Bson, to_bson};
use sqlx_core::column::Column;
use sqlx_core::decode::Decode;
use sqlx_core::error::BoxDynError;
use sqlx_core::mysql::{MySql, MySqlRow, MySqlValue, MySqlValueRef};
use sqlx_core::row::Row;
use sqlx_core::type_info::TypeInfo;
use sqlx_core::types::{BigDecimal, Json};
use sqlx_core::value::ValueRef;
use crate::convert::{JsonCodec, RefJsonCodec, ResultCodec};
use chrono::{DateTime, Utc, NaiveDate, Local};
use crate::{to_bson_macro};
use bson::bson;
use bson::spec::BinarySubtype;
use crate::db::db_adapter::DataDecoder;
impl<'r> JsonCodec for sqlx_core::mysql::MySqlValueRef<'r> {
fn try_to_bson(self) -> crate::Result<Bson> {
match self.type_info().name() {
"NULL" => {
return Ok(Bson::Null);
}
"DECIMAL" => {
let r: Option<String> = Decode::<'_, MySql>::decode(self)?;
if let Some(date) = r {
return Ok(Bson::String(date));
}
return Ok(Bson::Null);
}
"BIGINT UNSIGNED" => {
let r: Option<u64> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(bson!(r as i64));
}
return Ok(Bson::Null);
}
"BIGINT" => {
let r: Option<i64> = Decode::<'_, MySql>::decode(self)?;
return Ok(to_bson_macro!(r));
}
"INT UNSIGNED" | "MEDIUMINT UNSIGNED" => {
let r: Option<u32> = Decode::<'_, MySql>::decode(self)?;
return Ok(to_bson_macro!(r));
}
"INT" | "MEDIUMINT" => {
let r: Option<i32> = Decode::<'_, MySql>::decode(self)?;
return Ok(to_bson_macro!(r));
}
"SMALLINT" => {
let r: Option<i16> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(bson!(r as i32));
}
return Ok(Bson::Null);
}
"SMALLINT UNSIGNED" => {
let r: Option<u16> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(bson!(r as i32));
}
return Ok(Bson::Null);
}
"TINYINT UNSIGNED" => {
let r: Option<u8> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(bson!(r as i32));
}
return Ok(Bson::Null);
}
"TINYINT" => {
let r: Option<i8> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(bson!(r as i32));
}
return Ok(Bson::Null);
}
"FLOAT" => {
let r: Option<f32> = Decode::<'_, MySql>::decode(self)?;
return Ok(to_bson_macro!(r));
}
"DOUBLE" => {
let r: Option<f64> = Decode::<'_, MySql>::decode(self)?;
return Ok(to_bson_macro!(r));
}
"BINARY" | "VARBINARY" | "CHAR" | "VARCHAR" | "TEXT" | "ENUM" => {
let r: Option<String> = Decode::<'_, MySql>::decode(self)?;
return Ok(to_bson_macro!(r));
}
"BLOB" | "TINYBLOB" | "MEDIUMBLOB" | "LONGBLOB" | "TINYTEXT" | "MEDIUMTEXT"
| "LONGTEXT" => {
let r: Option<Vec<u8>> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(Bson::Binary(bson::Binary {
subtype: BinarySubtype::Generic,
bytes: r,
}));
}
return Ok(Bson::Null);
}
"BIT" => {
let r: Option<u8> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(bson!(r as i32));
}
return Ok(Bson::Null);
}
"BOOLEAN" => {
let r: Option<u8> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
let mut b = false;
if r == 1 {
b = true;
}
return Ok(bson!(b));
}
return Ok(Bson::Null);
}
"DATE" => {
let r: Option<chrono::NaiveDate> = Decode::<'_, MySql>::decode(self)?;
return Ok(to_bson(&r).unwrap_or_default());
}
"TIME" | "YEAR" => {
let r: Option<chrono::NaiveTime> = Decode::<'_, MySql>::decode(self)?;
return Ok(to_bson(&r).unwrap_or_default());
}
"DATETIME" => {
let r: Option<chrono::DateTime<Local>> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
let dt = bson::DateTime::from_chrono(r);
return Ok(Bson::DateTime(dt));
}
return Ok(Bson::Null);
}
"TIMESTAMP" => {
let r: Option<chrono::DateTime<Local>> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
let dt = bson::DateTime::from_chrono(r);
return Ok(Bson::DateTime(dt));
}
return Ok(Bson::Null);
}
"JSON" => {
let r: Option<Json<serde_json::Value>> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(to_bson(&r.0).unwrap_or_default());
}
return Ok(Bson::Null);
}
_ => {
let r: Option<Vec<u8>> = Decode::<'_, MySql>::decode(self)?;
if let Some(r) = r {
return Ok(Bson::Binary(bson::Binary {
subtype: BinarySubtype::Generic,
bytes: r,
}));
}
return Ok(Bson::Null);
}
}
}
}
impl RefJsonCodec for Vec<MySqlRow> {
fn try_to_bson(&self, decoder: &dyn DataDecoder) -> crate::Result<bson::Bson> {
let mut arr = Vec::with_capacity(self.len());
for row in self {
let mut m = bson::Document::new();
let columns = row.columns();
for x in columns {
let key = x.name();
let v: MySqlValueRef = row.try_get_raw(key)?;
let mut bson = v.try_to_bson()?;
decoder.decode(key, &mut bson)?;
m.insert(key.to_owned(), bson);
}
arr.push(bson::Bson::Document(m));
}
Ok(Bson::Array(arr))
}
}