use super::{
map_db_error, parse_datetime_row, parse_decimal_row, parse_enum_row, parse_uuid_row,
with_immediate_transaction,
};
use chrono::Utc;
use r2d2::Pool;
use r2d2_sqlite::SqliteConnectionManager;
use rust_decimal::Decimal;
use stateset_core::{
CommerceError, CreatePriceLevel, CurrencyCode, PriceAdjustmentType, PriceLevel,
PriceLevelEntry, PriceLevelFilter, PriceLevelId, PriceLevelRepository, ProductId, Result,
UpdatePriceLevel,
};
#[derive(Debug)]
pub struct SqlitePriceLevelRepository {
pool: Pool<SqliteConnectionManager>,
}
impl SqlitePriceLevelRepository {
#[must_use]
pub const fn new(pool: Pool<SqliteConnectionManager>) -> Self {
Self { pool }
}
fn conn(&self) -> Result<r2d2::PooledConnection<SqliteConnectionManager>> {
self.pool.get().map_err(|e| CommerceError::DatabaseError(e.to_string()))
}
fn row_to_level(row: &rusqlite::Row<'_>) -> rusqlite::Result<PriceLevel> {
Ok(PriceLevel {
id: parse_uuid_row(&row.get::<_, String>("id")?, "price_level", "id")?.into(),
name: row.get("name")?,
code: row.get("code")?,
description: row.get("description")?,
adjustment_type: parse_enum_row::<PriceAdjustmentType>(
&row.get::<_, String>("adjustment_type")?,
"price_level",
"adjustment_type",
)?,
adjustment_value: parse_decimal_row(
&row.get::<_, String>("adjustment_value")?,
"price_level",
"adjustment_value",
)?,
currency: parse_enum_row::<CurrencyCode>(
&row.get::<_, String>("currency")?,
"price_level",
"currency",
)?,
is_active: row.get::<_, i32>("is_active")? != 0,
created_at: parse_datetime_row(
&row.get::<_, String>("created_at")?,
"price_level",
"created_at",
)?,
updated_at: parse_datetime_row(
&row.get::<_, String>("updated_at")?,
"price_level",
"updated_at",
)?,
})
}
fn row_to_entry(row: &rusqlite::Row<'_>) -> rusqlite::Result<PriceLevelEntry> {
Ok(PriceLevelEntry {
price_level_id: parse_uuid_row(
&row.get::<_, String>("price_level_id")?,
"price_level_entry",
"price_level_id",
)?
.into(),
product_id: parse_uuid_row(
&row.get::<_, String>("product_id")?,
"price_level_entry",
"product_id",
)?
.into(),
price: parse_decimal_row(
&row.get::<_, String>("price")?,
"price_level_entry",
"price",
)?,
created_at: parse_datetime_row(
&row.get::<_, String>("created_at")?,
"price_level_entry",
"created_at",
)?,
updated_at: parse_datetime_row(
&row.get::<_, String>("updated_at")?,
"price_level_entry",
"updated_at",
)?,
})
}
}
impl PriceLevelRepository for SqlitePriceLevelRepository {
fn create(&self, input: CreatePriceLevel) -> Result<PriceLevel> {
let id = PriceLevelId::new();
let id_str = id.to_string();
let now_str = Utc::now().to_rfc3339();
let currency = input.currency.unwrap_or(CurrencyCode::USD);
with_immediate_transaction(&self.pool, |tx| {
tx.execute(
"INSERT INTO price_levels (id, name, code, description, adjustment_type, adjustment_value, currency, is_active, created_at, updated_at)
VALUES (?, ?, ?, ?, ?, ?, ?, 1, ?, ?)",
rusqlite::params![
&id_str,
&input.name,
&input.code,
&input.description,
input.adjustment_type.to_string(),
input.adjustment_value.to_string(),
currency.to_string(),
&now_str,
&now_str,
],
)?;
tx.query_row("SELECT * FROM price_levels WHERE id = ?", [&id_str], Self::row_to_level)
})
}
fn get(&self, id: PriceLevelId) -> Result<Option<PriceLevel>> {
let conn = self.conn()?;
match conn.query_row(
"SELECT * FROM price_levels WHERE id = ?",
[id.to_string()],
Self::row_to_level,
) {
Ok(l) => Ok(Some(l)),
Err(rusqlite::Error::QueryReturnedNoRows) => Ok(None),
Err(e) => Err(map_db_error(e)),
}
}
fn update(&self, id: PriceLevelId, input: UpdatePriceLevel) -> Result<PriceLevel> {
let id_str = id.to_string();
let now_str = Utc::now().to_rfc3339();
with_immediate_transaction(&self.pool, |tx| {
let mut sets = vec!["updated_at = ?".to_string()];
let mut params: Vec<Box<dyn rusqlite::types::ToSql>> = vec![Box::new(now_str.clone())];
if let Some(ref name) = input.name {
sets.push("name = ?".into());
params.push(Box::new(name.clone()));
}
if let Some(ref description) = input.description {
sets.push("description = ?".into());
params.push(Box::new(description.clone()));
}
if let Some(adjustment_type) = input.adjustment_type {
sets.push("adjustment_type = ?".into());
params.push(Box::new(adjustment_type.to_string()));
}
if let Some(adjustment_value) = input.adjustment_value {
sets.push("adjustment_value = ?".into());
params.push(Box::new(adjustment_value.to_string()));
}
if let Some(is_active) = input.is_active {
sets.push("is_active = ?".into());
params.push(Box::new(is_active as i32));
}
let sql = format!("UPDATE price_levels SET {} WHERE id = ?", sets.join(", "));
params.push(Box::new(id_str.clone()));
let param_refs: Vec<&dyn rusqlite::types::ToSql> =
params.iter().map(|p| p.as_ref()).collect();
tx.execute(&sql, param_refs.as_slice())?;
tx.query_row("SELECT * FROM price_levels WHERE id = ?", [&id_str], Self::row_to_level)
})
}
fn list(&self, filter: PriceLevelFilter) -> Result<Vec<PriceLevel>> {
let conn = self.conn()?;
let mut sql = "SELECT * FROM price_levels WHERE 1=1".to_string();
let mut params: Vec<Box<dyn rusqlite::types::ToSql>> = vec![];
if let Some(active) = filter.is_active {
sql.push_str(" AND is_active = ?");
params.push(Box::new(active as i32));
}
sql.push_str(" ORDER BY name ASC");
crate::sqlite::append_limit_offset(&mut sql, filter.limit, filter.offset);
let param_refs: Vec<&dyn rusqlite::types::ToSql> =
params.iter().map(|p| p.as_ref()).collect();
let mut stmt = conn.prepare(&sql).map_err(map_db_error)?;
let rows = stmt
.query_map(param_refs.as_slice(), Self::row_to_level)
.map_err(map_db_error)?
.collect::<std::result::Result<Vec<_>, _>>()
.map_err(map_db_error)?;
Ok(rows)
}
fn delete(&self, id: PriceLevelId) -> Result<()> {
let id_str = id.to_string();
with_immediate_transaction(&self.pool, |tx| {
tx.execute("DELETE FROM price_level_entries WHERE price_level_id = ?", [&id_str])?;
tx.execute("DELETE FROM price_levels WHERE id = ?", [&id_str])?;
Ok(())
})
}
fn set_entry(
&self,
id: PriceLevelId,
product_id: ProductId,
price: Decimal,
) -> Result<PriceLevelEntry> {
let id_str = id.to_string();
let product_str = product_id.to_string();
let now_str = Utc::now().to_rfc3339();
with_immediate_transaction(&self.pool, |tx| {
tx.execute(
"INSERT INTO price_level_entries (price_level_id, product_id, price, created_at, updated_at)
VALUES (?, ?, ?, ?, ?)
ON CONFLICT(price_level_id, product_id) DO UPDATE SET
price = excluded.price,
updated_at = excluded.updated_at",
rusqlite::params![&id_str, &product_str, price.to_string(), &now_str, &now_str],
)?;
tx.query_row(
"SELECT * FROM price_level_entries WHERE price_level_id = ? AND product_id = ?",
rusqlite::params![&id_str, &product_str],
Self::row_to_entry,
)
})
}
fn delete_entry(&self, id: PriceLevelId, product_id: ProductId) -> Result<()> {
let conn = self.conn()?;
conn.execute(
"DELETE FROM price_level_entries WHERE price_level_id = ? AND product_id = ?",
rusqlite::params![id.to_string(), product_id.to_string()],
)
.map_err(map_db_error)?;
Ok(())
}
fn list_entries(&self, id: PriceLevelId) -> Result<Vec<PriceLevelEntry>> {
let conn = self.conn()?;
let mut stmt = conn
.prepare(
"SELECT * FROM price_level_entries WHERE price_level_id = ? ORDER BY product_id",
)
.map_err(map_db_error)?;
let rows = stmt
.query_map([id.to_string()], Self::row_to_entry)
.map_err(map_db_error)?
.collect::<std::result::Result<Vec<_>, _>>()
.map_err(map_db_error)?;
Ok(rows)
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::DatabaseConfig;
use crate::sqlite::SqliteDatabase;
use rust_decimal_macros::dec;
fn test_repo() -> SqlitePriceLevelRepository {
let db = SqliteDatabase::new(&DatabaseConfig::in_memory()).expect("in-memory db");
SqlitePriceLevelRepository::new(db.pool().clone())
}
fn new_level(repo: &SqlitePriceLevelRepository, code: &str) -> PriceLevel {
repo.create(CreatePriceLevel {
name: "Wholesale".into(),
code: code.into(),
description: None,
adjustment_type: PriceAdjustmentType::PercentageDiscount,
adjustment_value: dec!(10),
currency: Some(CurrencyCode::USD),
})
.expect("create level")
}
#[test]
fn create_get_update() {
let repo = test_repo();
let l = new_level(&repo, "WHOLESALE");
assert_eq!(l.adjust(dec!(100)), dec!(90));
let fetched = repo.get(l.id).expect("get").expect("found");
assert_eq!(fetched.code, "WHOLESALE");
let updated = repo
.update(
l.id,
UpdatePriceLevel { adjustment_value: Some(dec!(25)), ..Default::default() },
)
.expect("update");
assert_eq!(updated.adjust(dec!(100)), dec!(75));
}
#[test]
fn entries_upsert_and_resolve() {
let repo = test_repo();
let l = new_level(&repo, "VIP");
let product = ProductId::new();
let entry = repo.set_entry(l.id, product, dec!(42)).expect("set entry");
assert_eq!(entry.price, dec!(42));
let entry = repo.set_entry(l.id, product, dec!(40)).expect("upsert entry");
assert_eq!(entry.price, dec!(40));
assert_eq!(repo.list_entries(l.id).expect("entries").len(), 1);
repo.delete_entry(l.id, product).expect("delete entry");
assert_eq!(repo.list_entries(l.id).expect("entries").len(), 0);
}
#[test]
fn list_and_delete() {
let repo = test_repo();
let a = new_level(&repo, "A");
new_level(&repo, "B");
assert_eq!(repo.list(PriceLevelFilter::default()).expect("list").len(), 2);
repo.set_entry(a.id, ProductId::new(), dec!(5)).expect("entry");
repo.delete(a.id).expect("delete");
assert_eq!(repo.list(PriceLevelFilter::default()).expect("list").len(), 1);
assert_eq!(repo.list_entries(a.id).expect("entries").len(), 0);
}
}