common/src/db/model_utils.rs

159 lines
3.9 KiB
Rust

use crate::db::models::Periods;
use chrono::{NaiveTime, Timelike};
use serde::{Deserialize, Serialize};
use sqlx::database::HasArguments;
use sqlx::encode::IsNull;
use sqlx::error::BoxDynError;
use sqlx::sqlite::{SqliteTypeInfo, SqliteValueRef};
use sqlx::{Decode, Encode, Sqlite, Type};
#[derive(Debug, Serialize, Deserialize, PartialEq, Clone)]
pub struct Period {
#[serde(with = "period_format")]
pub start: NaiveTime,
#[serde(with = "period_format")]
pub end: NaiveTime,
}
mod period_format {
use chrono::NaiveTime;
use serde::{self, Deserialize, Deserializer, Serializer};
const FORMAT: &str = "%H:%M";
pub fn serialize<S>(time: &NaiveTime, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let s = format!("{}", time.format(FORMAT));
serializer.serialize_str(&s)
}
pub fn deserialize<'de, D>(deserializer: D) -> Result<NaiveTime, D::Error>
where
D: Deserializer<'de>,
{
let s = String::deserialize(deserializer)?;
NaiveTime::parse_from_str(&s, FORMAT).map_err(serde::de::Error::custom)
}
}
impl Period {
pub fn new(start: NaiveTime, end: NaiveTime) -> Self {
Period { start, end }
}
pub fn new_on() -> Self {
Period {
start: NaiveTime::from_hms_opt(0, 0, 0).unwrap(),
end: NaiveTime::from_hms_opt(0, 0, 0).unwrap(),
}
}
}
//impl ToSql<Binary, Sqlite> for Periods
//where
// Vec<u8>: ToSql<Binary, Sqlite>,
//{
// fn to_sql<'b>(&'b self, out: &mut Output<'b, '_, Sqlite>) -> serialize::Result {
// let periods_u8: Vec<u8> = self
// .0
// .iter()
// .flat_map(|period| {
// let vec = vec![
// period.start.hour() as u8,
// period.start.minute() as u8,
// period.end.hour() as u8,
// period.end.minute() as u8,
// ];
// vec
// })
// .collect();
//
// out.set_value(periods_u8);
//
// Ok(IsNull::No)
// }
//}
//
//impl<DB> FromSql<Binary, DB> for Periods
//where
// DB: diesel::backend::Backend,
// Vec<u8>: FromSql<Binary, DB>,
//{
// fn from_sql(bytes: DB::RawValue<'_>) -> deserialize::Result<Self> {
// let blob: Vec<u8> = Vec::from_sql(bytes).unwrap();
//
// let mut vec = Vec::new();
// for i in (3..blob.len()).step_by(4) {
// let start_val_h: u32 = blob[i - 3] as u32;
// let start_val_m: u32 = blob[i - 2] as u32;
// let end_val_h: u32 = blob[i - 1] as u32;
// let end_val_m: u32 = blob[i] as u32;
// vec.push(Period {
// start: NaiveTime::from_hms_opt(start_val_h, start_val_m, 0).unwrap(),
// end: NaiveTime::from_hms_opt(end_val_h, end_val_m, 0).unwrap(),
// });
// }
// Ok(Periods(vec))
// }
//}
impl Type<Sqlite> for Periods {
fn type_info() -> SqliteTypeInfo {
<&[u8] as Type<Sqlite>>::type_info()
}
fn compatible(ty: &SqliteTypeInfo) -> bool {
<&[u8] as Type<Sqlite>>::compatible(ty)
}
}
impl<'q> Encode<'q, Sqlite> for Periods {
//noinspection DuplicatedCode
fn encode_by_ref(&self, buf: &mut <Sqlite as HasArguments<'q>>::ArgumentBuffer) -> IsNull {
<&Vec<u8> as Encode<Sqlite>>::encode(&Vec::from(self), buf)
}
}
impl<'r> Decode<'r, Sqlite> for Periods {
fn decode(value: SqliteValueRef<'r>) -> Result<Self, BoxDynError> {
let blob = <&[u8] as Decode<Sqlite>>::decode(value)?;
Ok(Periods::from(Vec::from(blob)))
}
}
impl From<&Periods> for Vec<u8> {
fn from(periods: &Periods) -> Vec<u8> {
periods
.0
.iter()
.flat_map(|period| {
let vec = vec![
period.start.hour() as u8,
period.start.minute() as u8,
period.end.hour() as u8,
period.end.minute() as u8,
];
vec
})
.collect()
}
}
impl From<Vec<u8>> for Periods {
fn from(value: Vec<u8>) -> Self {
let mut vec = Vec::new();
for i in (3..value.len()).step_by(4) {
let start_val_h: u32 = value[i - 3] as u32;
let start_val_m: u32 = value[i - 2] as u32;
let end_val_h: u32 = value[i - 1] as u32;
let end_val_m: u32 = value[i] as u32;
vec.push(Period {
start: NaiveTime::from_hms_opt(start_val_h, start_val_m, 0).unwrap(),
end: NaiveTime::from_hms_opt(end_val_h, end_val_m, 0).unwrap(),
});
}
Periods(vec)
}
}