vantage-sql 0.5.6

//! Vista integration: typed `Table<PostgresDB, _>` → `Vista` and YAML → `Vista`.
//!
//! Requires a running PostgreSQL on `postgres://vantage:vantage@localhost:5433/vantage`.
//! Each test uses a uniquely-suffixed table to avoid collisions.

#![cfg(feature = "vista")]

use std::error::Error;

use ciborium::Value as CborValue;
use vantage_dataset::prelude::*;
use vantage_sql::postgres::PostgresDB;
use vantage_table::table::Table;
use vantage_types::{EmptyEntity, Record};
use vantage_vista::VistaFactory;

type TestResult = std::result::Result<(), Box<dyn Error>>;

const PG_URL: &str = "postgres://vantage:vantage@localhost:5433/vantage";

async fn setup(suffix: &str) -> (PostgresDB, String) {
    let db = PostgresDB::connect(PG_URL).await.unwrap();
    let table_name = format!("vista_product_{}", suffix);

    sqlx::query(&format!("DROP TABLE IF EXISTS \"{}\"", table_name))
        .execute(db.pool())
        .await
        .unwrap();

    sqlx::query(&format!(
        "CREATE TABLE \"{}\" (
            id TEXT PRIMARY KEY,
            name TEXT NOT NULL,
            price BIGINT NOT NULL,
            is_deleted BOOLEAN NOT NULL DEFAULT false
        )",
        table_name
    ))
    .execute(db.pool())
    .await
    .unwrap();

    sqlx::query(&format!(
        "INSERT INTO \"{}\" VALUES \
         ('a', 'Alpha', 10, false), \
         ('b', 'Beta', 20, true), \
         ('c', 'Gamma', 30, false)",
        table_name
    ))
    .execute(db.pool())
    .await
    .unwrap();

    (db, table_name)
}

fn product_table(db: PostgresDB, name: &str) -> Table<PostgresDB, EmptyEntity> {
    Table::<PostgresDB, EmptyEntity>::new(name, db)
        .with_id_column("id")
        .with_column_of::<String>("name")
        .with_column_of::<i64>("price")
        .with_column_of::<bool>("is_deleted")
}

#[tokio::test]
async fn vista_lists_typed_postgres_as_cbor() -> TestResult {
    let (db, name) = setup("list").await;
    let table = product_table(db.clone(), &name);
    let vista = db.vista_factory().from_table(table)?;

    assert_eq!(vista.name(), name);
    assert_eq!(vista.get_id_column(), Some("id"));

    let rows = vista.list_values().await?;
    assert_eq!(rows.len(), 3);

    let alpha = rows.get("a").expect("row a");
    assert_eq!(
        alpha.get("name"),
        Some(&CborValue::Text("Alpha".to_string()))
    );
    Ok(())
}

#[tokio::test]
async fn vista_get_value_by_id() -> TestResult {
    let (db, name) = setup("get").await;
    let table = product_table(db.clone(), &name);
    let vista = db.vista_factory().from_table(table)?;

    let row = vista
        .get_value(&"b".to_string())
        .await?
        .expect("row b exists");
    assert_eq!(row.get("name"), Some(&CborValue::Text("Beta".to_string())));

    let missing = vista.get_value(&"nope".to_string()).await?;
    assert!(missing.is_none());
    Ok(())
}

#[tokio::test]
async fn vista_count_with_eq_condition() -> TestResult {
    let (db, name) = setup("count").await;
    let table = product_table(db.clone(), &name);
    let mut vista = db.vista_factory().from_table(table)?;

    assert_eq!(vista.get_count().await?, 3);

    vista.add_condition_eq("is_deleted", CborValue::Bool(false))?;
    assert_eq!(vista.get_count().await?, 2);

    let rows = vista.list_values().await?;
    assert_eq!(rows.len(), 2);
    assert!(rows.contains_key("a"));
    assert!(rows.contains_key("c"));
    Ok(())
}

#[tokio::test]
async fn vista_yaml_loads_table_and_columns() -> TestResult {
    let (db, name) = setup("yaml").await;

    let yaml = format!(
        r#"
name: product_view
columns:
  id:
    type: string
    flags: [id]
  name:
    type: string
    flags: [title, searchable]
  price:
    type: int
postgres:
  table: {name}
"#
    );

    let vista = db.vista_factory().from_yaml(&yaml)?;

    assert_eq!(vista.name(), "product_view");
    assert_eq!(vista.get_id_column(), Some("id"));
    assert_eq!(vista.get_title_columns(), vec!["name"]);

    let rows = vista.list_values().await?;
    assert_eq!(rows.len(), 3);
    Ok(())
}

#[tokio::test]
async fn vista_writes_round_trip_via_cbor() -> TestResult {
    let (db, name) = setup("write").await;
    let table = product_table(db.clone(), &name);
    let vista = db.vista_factory().from_table(table)?;

    let record: Record<CborValue> = vec![
        ("name".to_string(), CborValue::Text("Delta".into())),
        ("price".to_string(), CborValue::Integer(99i64.into())),
        ("is_deleted".to_string(), CborValue::Bool(false)),
    ]
    .into_iter()
    .collect();

    vista.insert_value(&"d".to_string(), &record).await?;

    let fetched = vista.get_value(&"d".to_string()).await?.expect("inserted");
    assert_eq!(fetched.get("name"), Some(&CborValue::Text("Delta".into())));

    vista.delete(&"d".to_string()).await?;
    assert!(vista.get_value(&"d".to_string()).await?.is_none());
    Ok(())
}

#[tokio::test]
async fn vista_capabilities_advertise_read_write() -> TestResult {
    let (db, name) = setup("caps").await;
    let table = product_table(db.clone(), &name);
    let vista = db.vista_factory().from_table(table)?;

    let caps = vista.capabilities();
    assert!(caps.can_count);
    assert!(caps.can_insert);
    assert!(caps.can_update);
    assert!(caps.can_delete);
    assert!(!caps.can_subscribe);
    Ok(())
}

fn field(name: &str, value: CborValue) -> Record<CborValue> {
    let mut r = Record::new();
    r.insert(name.to_string(), value);
    r
}

/// A `cart` whose `items` column is a JSON array (TEXT), surfaced as a
/// contains-many relation — same JSON-blob round-trip as SQLite.
fn cart_table(db: PostgresDB, table: &str) -> Table<PostgresDB, EmptyEntity> {
    Table::<PostgresDB, EmptyEntity>::new(table, db)
        .with_id_column("id")
        .with_column_of::<String>("items")
        .with_contained_many(
            "items",
            "items",
            |db| {
                Table::new("items", db)
                    .with_column_of::<String>("sku")
                    .with_column_of::<i64>("qty")
            },
            None,
        )
}

#[tokio::test]
async fn contained_json_column_round_trips_on_postgres() -> TestResult {
    let db = PostgresDB::connect(PG_URL).await.unwrap();
    let t = "vista_cart_contained";
    sqlx::query(&format!("DROP TABLE IF EXISTS \"{t}\""))
        .execute(db.pool())
        .await
        .unwrap();
    sqlx::query(&format!(
        "CREATE TABLE \"{t}\" (id TEXT PRIMARY KEY, items TEXT NOT NULL)"
    ))
    .execute(db.pool())
    .await
    .unwrap();
    sqlx::query(&format!(
        r#"INSERT INTO "{t}" VALUES ('c1', '[{{"sku":"a","qty":1}},{{"sku":"b","qty":2}}]')"#
    ))
    .execute(db.pool())
    .await
    .unwrap();

    let vista = db.vista_factory().from_table(cart_table(db.clone(), t))?;
    assert_eq!(vista.list_contained().len(), 1);

    let cart = vista.get_value(&"c1".to_string()).await?.unwrap();
    assert!(matches!(cart.get("items"), Some(CborValue::Text(_))));
    let items = vista.get_ref("items", &cart)?;
    assert_eq!(items.list_values().await?.len(), 2);

    let mut line = Record::new();
    line.insert("sku".to_string(), CborValue::Text("c".into()));
    line.insert("qty".to_string(), CborValue::Integer(3i64.into()));
    let new_id = items.insert_return_id_value(&line).await?;
    assert_eq!(new_id, "2");

    let cart2 = vista.get_value(&"c1".to_string()).await?.unwrap();
    let items2 = vista.get_ref("items", &cart2)?;
    assert_eq!(items2.list_values().await?.len(), 3);

    items2
        .patch_value(
            &"0".to_string(),
            &field("qty", CborValue::Integer(99i64.into())),
        )
        .await?;
    let cart3 = vista.get_value(&"c1".to_string()).await?.unwrap();
    let items3 = vista.get_ref("items", &cart3)?;
    assert_eq!(
        items3
            .get_value(&"0".to_string())
            .await?
            .unwrap()
            .get("qty"),
        Some(&CborValue::Integer(99i64.into()))
    );

    sqlx::query(&format!("DROP TABLE \"{t}\""))
        .execute(db.pool())
        .await
        .ok();
    Ok(())
}