horizon-sdk 6.9.0

use chrono::Utc;
use tracing::debug;
use uuid::Uuid;

use crate::postgres::retry::{RetryPolicy, retry};
use crate::types::error::{HorizonError, PostgresError, Result};
use crate::types::model::{DataStream, DataStreamQuerySource};

use super::PostgresRepository;

impl PostgresRepository {
    /// Delete a data stream by ID. Returns the number of rows removed.
    pub async fn delete_data_stream(&self, id: Uuid) -> Result<u64> {
        let result = sqlx::query!("DELETE FROM horizon_public.data_stream WHERE id = $1", id)
            .execute(&self.pool)
            .await?;
        Ok(result.rows_affected())
    }

    /// Create a new data stream.
    pub async fn insert_data_stream(&self, data_stream: &DataStream) -> Result<DataStream> {
        let now = Utc::now();
        let org = self.organization_id.or(data_stream.organization_id);
        Ok(sqlx::query_as!(
            DataStream,
            r#"
            INSERT INTO horizon_public.data_stream
                (id, platform_id, organization_id, name, query_source, modified_datetime)
            VALUES (COALESCE($1, gen_random_uuid()), $2, $3, $4, $5, $6)
            RETURNING
                id,
                created_datetime,
                modified_datetime,
                platform_id,
                organization_id,
                name,
                query_source AS "query_source!: _"
            "#,
            data_stream.id,
            data_stream.platform_id,
            org,
            data_stream.name,
            data_stream.query_source as _,
            now,
        )
        .fetch_one(&self.pool)
        .await?)
    }

    /// Create a batch of data streams in a single multi-row INSERT.
    ///
    /// Per-column slices are passed to `PostgreSQL` `UNNEST(...)` so the
    /// entire batch becomes one SQL statement and one network round-trip.
    /// Missing IDs are filled by `gen_random_uuid()` server-side, and
    /// `modified_datetime` is set to the same `now()` value for every
    /// row.
    ///
    /// Returns the inserted rows in input order. Wraps the statement in
    /// a transaction so a per-row failure rolls back the entire batch.
    #[allow(
        clippy::as_conversions,
        reason = "sqlx::query_as! requires `&Vec<T> as &[T]` ascription to bind a nullable Postgres array; conversion direction is unambiguous (same element type)"
    )]
    pub async fn insert_data_stream_batch(
        &self,
        data_streams: &[DataStream],
    ) -> Result<Vec<DataStream>> {
        if data_streams.is_empty() {
            return Ok(Vec::new());
        }
        let now = Utc::now();
        let ids: Vec<Option<Uuid>> = data_streams
            .iter()
            .map(|data_stream| data_stream.id)
            .collect();
        let platform_ids: Vec<Option<Uuid>> = data_streams
            .iter()
            .map(|data_stream| data_stream.platform_id)
            .collect();
        let orgs: Vec<Option<Uuid>> = data_streams
            .iter()
            .map(|data_stream| self.organization_id.or(data_stream.organization_id))
            .collect();
        let names: Vec<Option<String>> = data_streams
            .iter()
            .map(|data_stream| data_stream.name.clone())
            .collect();
        let query_sources: Vec<DataStreamQuerySource> = data_streams
            .iter()
            .map(|data_stream| data_stream.query_source)
            .collect();
        let mut tx = self.pool.begin().await?;
        let rows = sqlx::query_as!(
            DataStream,
            r#"
            WITH source AS (
                SELECT
                    COALESCE(id, gen_random_uuid()) AS id,
                    platform_id, organization_id, name, query_source, ord
                FROM UNNEST(
                    $1::uuid[], $2::uuid[], $3::uuid[], $4::text[],
                    $5::horizon_public.data_stream_query_source[]
                ) WITH ORDINALITY
                    AS batch(id, platform_id, organization_id, name, query_source, ord)
            ),
            inserted AS (
                INSERT INTO horizon_public.data_stream
                    (id, platform_id, organization_id, name, query_source, modified_datetime)
                SELECT id, platform_id, organization_id, name, query_source, $6 FROM source
                RETURNING
                    id, created_datetime, modified_datetime,
                    platform_id, organization_id, name, query_source
            )
            SELECT
                inserted.id,
                inserted.created_datetime,
                inserted.modified_datetime,
                inserted.platform_id,
                inserted.organization_id,
                inserted.name,
                inserted.query_source AS "query_source!: _"
            FROM inserted
            JOIN source ON source.id = inserted.id
            ORDER BY source.ord
            "#,
            &ids as &[Option<Uuid>],
            &platform_ids as &[Option<Uuid>],
            &orgs as &[Option<Uuid>],
            &names as &[Option<String>],
            &query_sources as &[DataStreamQuerySource],
            now,
        )
        .fetch_all(&mut *tx)
        .await?;
        tx.commit().await?;
        debug!(batch_size = rows.len(), "insert_data_stream_batch");
        Ok(rows)
    }

    /// List all data streams. Retried under the default [`RetryPolicy`] on transient
    /// Postgres errors; reads are naturally idempotent.
    pub async fn list_data_streams(&self) -> Result<Vec<DataStream>> {
        retry(RetryPolicy::default(), || async move {
            Ok(sqlx::query_as!(
                DataStream,
                r#"
                SELECT
                    id,
                    created_datetime,
                    modified_datetime,
                    platform_id,
                    organization_id,
                    name,
                    query_source AS "query_source!: _"
                FROM horizon_public.data_stream
                "#,
            )
            .fetch_all(&self.pool)
            .await?)
        })
        .await
    }

    /// Read a data stream by ID. Retried under the default [`RetryPolicy`] on transient
    /// Postgres errors; reads are naturally idempotent.
    pub async fn read_data_stream(&self, id: Uuid) -> Result<Option<DataStream>> {
        retry(RetryPolicy::default(), || async move {
            Ok(sqlx::query_as!(
                DataStream,
                r#"
                SELECT
                    id,
                    created_datetime,
                    modified_datetime,
                    platform_id,
                    organization_id,
                    name,
                    query_source AS "query_source!: _"
                FROM horizon_public.data_stream
                WHERE id = $1
                "#,
                id,
            )
            .fetch_optional(&self.pool)
            .await?)
        })
        .await
    }

    /// Update an existing data stream by ID.
    ///
    /// Returns `HorizonError::Postgres(PostgresError::NotFound)` if no row
    /// with the given ID exists. Matches Python `BaseRepository.update()`
    /// semantics.
    pub async fn update_data_stream(&self, data_stream: &DataStream) -> Result<DataStream> {
        let now = Utc::now();
        let result = sqlx::query_as!(
            DataStream,
            r#"
            UPDATE horizon_public.data_stream
            SET
                platform_id = $2,
                name = $3,
                query_source = $4,
                modified_datetime = $5
            WHERE id = $1
            RETURNING
                id,
                created_datetime,
                modified_datetime,
                platform_id,
                organization_id,
                name,
                query_source AS "query_source!: _"
            "#,
            data_stream.id,
            data_stream.platform_id,
            data_stream.name,
            data_stream.query_source as _,
            now,
        )
        .fetch_optional(&self.pool)
        .await?;

        result.ok_or_else(|| {
            HorizonError::Postgres(PostgresError::NotFound {
                entity: "data_stream".to_owned(),
                id: data_stream.id.into(),
            })
        })
    }

    /// Create a new data stream or update if it already exists.
    pub async fn upsert_data_stream(&self, data_stream: &DataStream) -> Result<DataStream> {
        let now = Utc::now();
        let org = self.organization_id.or(data_stream.organization_id);
        Ok(sqlx::query_as!(
            DataStream,
            r#"
            INSERT INTO horizon_public.data_stream
                (id, platform_id, organization_id, name, query_source, modified_datetime)
            VALUES (COALESCE($1, gen_random_uuid()), $2, $3, $4, $5, $6)
            ON CONFLICT (id) DO UPDATE SET
                platform_id = EXCLUDED.platform_id,
                name = EXCLUDED.name,
                query_source = EXCLUDED.query_source,
                modified_datetime = EXCLUDED.modified_datetime
            RETURNING
                id,
                created_datetime,
                modified_datetime,
                platform_id,
                organization_id,
                name,
                query_source AS "query_source!: _"
            "#,
            data_stream.id,
            data_stream.platform_id,
            org,
            data_stream.name,
            data_stream.query_source as _,
            now,
        )
        .fetch_one(&self.pool)
        .await?)
    }
}