Files
BazaarRealmAPI/src/models/merchandise_list.rs

324 lines
10 KiB
Rust

use anyhow::{anyhow, Error, Result};
use chrono::prelude::*;
use http::StatusCode;
use http_api_problem::HttpApiProblem;
use serde::{Deserialize, Serialize};
use serde_json::json;
use sqlx::types::Json;
use sqlx::{Done, Executor, Postgres};
use tracing::instrument;
use url::Url;
use super::ListParams;
use crate::problem::forbidden_permission;
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct Merchandise {
pub mod_name: String,
pub local_form_id: u32,
pub name: String,
pub quantity: u32,
pub form_type: u32,
pub is_food: bool,
pub price: u32,
pub keywords: Vec<String>,
}
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct MerchandiseList {
pub id: i32,
pub shop_id: i32,
pub owner_id: i32,
pub form_list: Json<Vec<Merchandise>>,
pub created_at: NaiveDateTime,
pub updated_at: NaiveDateTime,
}
#[derive(Debug, Serialize, Deserialize, Clone)]
pub struct PostedMerchandiseList {
pub shop_id: i32,
pub owner_id: Option<i32>,
pub form_list: Json<Vec<Merchandise>>,
}
impl MerchandiseList {
pub fn resource_name() -> &'static str {
"merchandise_list"
}
pub fn pk(&self) -> i32 {
self.id
}
pub fn url(&self, api_url: &Url) -> Result<Url> {
Ok(api_url.join(&format!("{}s/{}", Self::resource_name(), self.pk()))?)
}
// TODO: this model will probably never need to be accessed through it's ID, should these methods be removed/unimplemented?
#[instrument(level = "debug", skip(db))]
pub async fn get(db: impl Executor<'_, Database = Postgres>, id: i32) -> Result<Self> {
sqlx::query_as!(
Self,
r#"SELECT id, shop_id, owner_id, created_at, updated_at,
form_list as "form_list: Json<Vec<Merchandise>>"
FROM merchandise_lists
WHERE id = $1"#,
id,
)
.fetch_one(db)
.await
.map_err(Error::new)
}
#[instrument(level = "debug", skip(merchandise_list, db))]
pub async fn create(
merchandise_list: PostedMerchandiseList,
db: impl Executor<'_, Database = Postgres>,
) -> Result<Self> {
Ok(sqlx::query_as!(
Self,
r#"INSERT INTO merchandise_lists
(shop_id, owner_id, form_list, created_at, updated_at)
VALUES ($1, $2, $3, now(), now())
RETURNING id, shop_id, owner_id, created_at, updated_at,
form_list as "form_list: Json<Vec<Merchandise>>""#,
merchandise_list.shop_id,
merchandise_list.owner_id,
serde_json::json!(merchandise_list.form_list),
)
.fetch_one(db)
.await?)
}
#[instrument(level = "debug", skip(db))]
pub async fn delete(
db: impl Executor<'_, Database = Postgres> + Copy,
owner_id: i32,
id: i32,
) -> Result<u64> {
let merchandise_list =
sqlx::query!("SELECT owner_id FROM merchandise_lists WHERE id = $1", id)
.fetch_one(db)
.await?;
if merchandise_list.owner_id == owner_id {
return Ok(
sqlx::query!("DELETE FROM merchandise_lists WHERE id = $1", id)
.execute(db)
.await?
.rows_affected(),
);
} else {
return Err(forbidden_permission());
}
}
#[instrument(level = "debug", skip(db))]
pub async fn list(
db: impl Executor<'_, Database = Postgres>,
list_params: &ListParams,
) -> Result<Vec<Self>> {
let result = if let Some(order_by) = list_params.get_order_by() {
sqlx::query_as!(
Self,
r#"SELECT id, shop_id, owner_id, created_at, updated_at,
form_list as "form_list: Json<Vec<Merchandise>>"
FROM merchandise_lists
ORDER BY $1
LIMIT $2
OFFSET $3"#,
order_by,
list_params.limit.unwrap_or(10),
list_params.offset.unwrap_or(0),
)
.fetch_all(db)
.await?
} else {
sqlx::query_as!(
Self,
r#"SELECT id, shop_id, owner_id, created_at, updated_at,
form_list as "form_list: Json<Vec<Merchandise>>"
FROM merchandise_lists
LIMIT $1
OFFSET $2"#,
list_params.limit.unwrap_or(10),
list_params.offset.unwrap_or(0),
)
.fetch_all(db)
.await?
};
Ok(result)
}
#[instrument(level = "debug", skip(merchandise_list, db))]
pub async fn update(
merchandise_list: PostedMerchandiseList,
db: impl Executor<'_, Database = Postgres> + Copy,
owner_id: i32,
id: i32,
) -> Result<Self> {
let existing_merchandise_list =
sqlx::query!("SELECT owner_id FROM merchandise_lists WHERE id = $1", id)
.fetch_one(db)
.await?;
if existing_merchandise_list.owner_id == owner_id {
Ok(sqlx::query_as!(
Self,
r#"UPDATE merchandise_lists SET
form_list = $2,
updated_at = now()
WHERE id = $1
RETURNING id, shop_id, owner_id, created_at, updated_at,
form_list as "form_list: Json<Vec<Merchandise>>""#,
id,
serde_json::json!(merchandise_list.form_list),
)
.fetch_one(db)
.await?)
} else {
return Err(forbidden_permission());
}
}
#[instrument(level = "debug", skip(db))]
pub async fn get_by_shop_id(
db: impl Executor<'_, Database = Postgres>,
shop_id: i32,
) -> Result<Self> {
sqlx::query_as!(
Self,
r#"SELECT id, shop_id, owner_id, created_at, updated_at,
form_list as "form_list: Json<Vec<Merchandise>>"
FROM merchandise_lists
WHERE shop_id = $1"#,
shop_id,
)
.fetch_one(db)
.await
.map_err(Error::new)
}
#[instrument(level = "debug", skip(merchandise_list, db))]
pub async fn update_by_shop_id(
merchandise_list: PostedMerchandiseList,
db: impl Executor<'_, Database = Postgres> + Copy,
owner_id: i32,
shop_id: i32,
) -> Result<Self> {
let existing_merchandise_list = sqlx::query!(
"SELECT owner_id FROM merchandise_lists WHERE shop_id = $1",
shop_id
)
.fetch_one(db)
.await?;
if existing_merchandise_list.owner_id == owner_id {
Ok(sqlx::query_as!(
Self,
r#"UPDATE merchandise_lists SET
form_list = $2,
updated_at = now()
WHERE shop_id = $1
RETURNING id, shop_id, owner_id, created_at, updated_at,
form_list as "form_list: Json<Vec<Merchandise>>""#,
shop_id,
serde_json::json!(merchandise_list.form_list),
)
.fetch_one(db)
.await?)
} else {
return Err(forbidden_permission());
}
}
#[instrument(level = "debug", skip(db))]
pub async fn update_merchandise_quantity(
db: impl Executor<'_, Database = Postgres>,
shop_id: i32,
mod_name: &str,
local_form_id: i32,
name: &str,
form_type: i32,
is_food: bool,
price: i32,
quantity_delta: i32,
) -> Result<Self> {
let add_item = json!([{
"mod_name": mod_name,
"local_form_id": local_form_id,
"name": name,
"quantity": quantity_delta,
"form_type": form_type,
"is_food": is_food,
"price": price,
}]);
Ok(sqlx::query_as!(
Self,
r#"UPDATE
merchandise_lists
SET
form_list = CASE
WHEN elem_index IS NULL AND quantity IS NULL AND $4 > 0
THEN form_list || $5
WHEN elem_index IS NOT NULL AND quantity IS NOT NULL AND quantity::int + $4 = 0
THEN form_list - elem_index::int
WHEN elem_index IS NOT NULL AND quantity IS NOT NULL
THEN jsonb_set(
form_list,
array[elem_index::text, 'quantity'],
to_jsonb(quantity::int + $4),
true
)
ELSE NULL
END
FROM (
SELECT
pos - 1 as elem_index,
elem->>'quantity' as quantity
FROM
merchandise_lists,
jsonb_array_elements(form_list) with ordinality arr(elem, pos)
WHERE
shop_id = $1 AND
elem->>'mod_name' = $2::text AND
elem->>'local_form_id' = $3::text
UNION ALL
SELECT
NULL as elem_index, NULL as quantity
LIMIT 1
) sub
WHERE
shop_id = $1
RETURNING
merchandise_lists.id,
merchandise_lists.shop_id,
merchandise_lists.owner_id,
merchandise_lists.created_at,
merchandise_lists.updated_at,
merchandise_lists.form_list as "form_list: Json<Vec<Merchandise>>""#,
shop_id,
mod_name,
&local_form_id.to_string(),
quantity_delta,
add_item,
)
.fetch_one(db)
.await
.map_err(|error| {
let anyhow_error = anyhow!(error);
if let Some(db_error) =
anyhow_error.downcast_ref::<sqlx::postgres::PgDatabaseError>()
{
if db_error.code() == "23502" && db_error.column() == Some("form_list") {
return anyhow!(HttpApiProblem::with_title_and_type_from_status(
StatusCode::NOT_FOUND
)
.set_detail(format!(
"Cannot find merchandise to buy with mod_name: {} and local_form_id: {:#010X}",
mod_name, local_form_id
)));
}
}
anyhow_error
})?)
}
}