Refactors importer to use core stuff

6 files changed, 109 insertions, 0 deletions

diff --git a/backend/core/src/queries/budget_updates/delete_all.rs b/backend/core/src/queries/budget_updates/delete_all.rs
new file mode 100644
index 0000000..b7ad082
--- /dev/null
+++ b/backend/core/src/queries/budget_updates/delete_all.rs
@@ -0,0 +1,11 @@
+use anyhow::{Context, Result};
+use diesel::{RunQueryDsl, SqliteConnection};
+
+use crate::schema::budget_updates::dsl::budget_updates;
+
+pub fn delete_all_budget_updates(connection: &mut SqliteConnection) -> Result<usize> {
+    let num_rows_deleted = diesel::delete(budget_updates)
+        .execute(connection)
+        .with_context(|| "failed to delete all budget updates")?;
+    Ok(num_rows_deleted)
+}
diff --git a/backend/core/src/queries/budget_updates/get_all.rs b/backend/core/src/queries/budget_updates/get_all.rs
new file mode 100644
index 0000000..9c9310b
--- /dev/null
+++ b/backend/core/src/queries/budget_updates/get_all.rs
@@ -0,0 +1,16 @@
+use anyhow::{Context, Result};
+use crate::{
+    models::budget_update::BudgetUpdate,
+    schema::budget_updates::dsl::budget_updates as budget_updates_table,
+};
+use diesel::{QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection};
+
+pub fn get_all_budget_updates(
+    connection: &mut SqliteConnection,
+) -> Result<Vec<BudgetUpdate>> {
+    let all_budget_updates = budget_updates_table
+        .select(BudgetUpdate::as_select())
+        .load::<BudgetUpdate>(connection)
+        .with_context(|| "failed to get all budget updates")?;
+    Ok(all_budget_updates)
+}
diff --git a/backend/core/src/queries/budget_updates/get_first_with_date.rs b/backend/core/src/queries/budget_updates/get_first_with_date.rs
new file mode 100644
index 0000000..1df3ae2
--- /dev/null
+++ b/backend/core/src/queries/budget_updates/get_first_with_date.rs
@@ -0,0 +1,22 @@
+use anyhow::{Context, Result};
+use crate::{
+    models::budget_update::BudgetUpdate,
+    schema::budget_updates::{
+        self as budget_updates_schema, dsl::budget_updates as budget_updates_table,
+    },
+};
+use diesel::{
+    ExpressionMethods, QueryDsl, RunQueryDsl, SelectableHelper, SqliteConnection,
+};
+
+pub fn get_first_budget_update_with_date(
+    date: &str,
+    connection: &mut SqliteConnection,
+) -> Result<BudgetUpdate> {
+    let first_budget_update = budget_updates_table
+        .select(BudgetUpdate::as_select())
+        .filter(budget_updates_schema::date.eq(date))
+        .first(connection)
+        .with_context(|| format!("failed to get first budget update with date {}", date))?;
+    Ok(first_budget_update)
+}
diff --git a/backend/core/src/queries/budget_updates/get_most_recent_with_category_id.rs b/backend/core/src/queries/budget_updates/get_most_recent_with_category_id.rs
new file mode 100644
index 0000000..4e13c50
--- /dev/null
+++ b/backend/core/src/queries/budget_updates/get_most_recent_with_category_id.rs
@@ -0,0 +1,21 @@
+use anyhow::{Context, Result};
+use crate::{
+    models::date_time_utc::DateTimeUtc,
+    schema::budget_updates::{
+        self as budget_updates_schema, dsl::budget_updates as budget_updates_table,
+    },
+};
+use diesel::{dsl::max, ExpressionMethods, QueryDsl, RunQueryDsl, SqliteConnection};
+
+pub fn get_most_recent_budget_update_date_with_category_id(
+    category_id: i32,
+    connection: &mut SqliteConnection,
+) -> Result<Option<String>> {
+    let most_recent_date = budget_updates_table
+        .select(max(budget_updates_schema::date))
+        .filter(budget_updates_schema::category_id.eq(category_id))
+        .filter(budget_updates_schema::date.le(DateTimeUtc::now().to_day_str()))
+        .first(connection)
+        .with_context(|| format!("failed to get most recent budget update date with category ID {}", category_id))?;
+    Ok(most_recent_date)
+}
diff --git a/backend/core/src/queries/budget_updates/insert.rs b/backend/core/src/queries/budget_updates/insert.rs
new file mode 100644
index 0000000..e8ae271
--- /dev/null
+++ b/backend/core/src/queries/budget_updates/insert.rs
@@ -0,0 +1,28 @@
+use anyhow::{Context, Result};
+use crate::{
+    models::budget_update::BudgetUpdate,
+    schema::budget_updates::dsl::budget_updates as budget_updates_table,
+};
+use diesel::prelude::*;
+
+pub fn insert_budget_updates(
+    budget_updates: &[BudgetUpdate],
+    connection: &mut SqliteConnection,
+) -> Result<usize> {
+    let num_rows_inserted = diesel::insert_into(budget_updates_table)
+        .values(budget_updates)
+        .execute(connection)
+        .with_context(|| err_msg(budget_updates))?;
+    Ok(num_rows_inserted)
+}
+
+fn err_msg(budget_updates: &[BudgetUpdate]) -> String {
+    format!(
+        "failed to insert budget updates: [{}]",
+        budget_updates
+            .iter()
+            .map(|a| a.id.to_string())
+            .collect::<Vec<String>>()
+            .join(", ")
+    )
+}
diff --git a/backend/core/src/queries/budget_updates/mod.rs b/backend/core/src/queries/budget_updates/mod.rs
new file mode 100644
index 0000000..337197e
--- /dev/null
+++ b/backend/core/src/queries/budget_updates/mod.rs
@@ -0,0 +1,11 @@
+mod delete_all;
+mod get_all;
+mod get_first_with_date;
+mod get_most_recent_with_category_id;
+mod insert;
+
+pub use delete_all::delete_all_budget_updates;
+pub use get_all::get_all_budget_updates;
+pub use get_first_with_date::get_first_budget_update_with_date;
+pub use get_most_recent_with_category_id::get_most_recent_budget_update_date_with_category_id;
+pub use insert::insert_budget_updates;