Add feature batch 2, subscription/recurring sync, smooth charts, and app icon

outlay-core/src/import_csv.rs

@@ -0,0 +1,75 @@
+use crate::db::Database;
+use crate::models::{NewTransaction, TransactionType};
+use std::path::Path;
+
+pub fn import_csv(db: &Database, path: &Path, merge: bool) -> Result<usize, Box<dyn std::error::Error>> {
+    if !merge {
+        db.reset_all_data()?;
+    }
+
+    let mut reader = csv::Reader::from_path(path)?;
+    let mut count = 0;
+
+    for result in reader.records() {
+        let record = result?;
+        if record.len() < 6 {
+            continue;
+        }
+        let date_str = &record[0];
+        let type_str = &record[1];
+        let category_name = &record[2];
+        let amount: f64 = match record[3].parse() {
+            Ok(v) => v,
+            Err(_) => continue,
+        };
+        let currency = &record[4];
+        let exchange_rate: f64 = match record[5].parse() {
+            Ok(v) => v,
+            Err(_) => 1.0,
+        };
+        let note = if record.len() > 6 && !record[6].is_empty() {
+            Some(record[6].to_string())
+        } else {
+            None
+        };
+        let payee = if record.len() > 7 && !record[7].is_empty() {
+            Some(record[7].to_string())
+        } else {
+            None
+        };
+
+        let txn_type = match type_str.to_lowercase().as_str() {
+            "expense" => TransactionType::Expense,
+            "income" => TransactionType::Income,
+            _ => continue,
+        };
+
+        let categories = db.list_categories(Some(txn_type))?;
+        let category_id = match categories.iter().find(|c| c.name == category_name) {
+            Some(c) => c.id,
+            None => continue,
+        };
+
+        let date = chrono::NaiveDate::parse_from_str(date_str, "%Y-%m-%d")?;
+
+        if merge && db.find_duplicate_transaction(amount, txn_type, category_id, date)? {
+            continue;
+        }
+
+        let new_txn = NewTransaction {
+            amount,
+            transaction_type: txn_type,
+            category_id,
+            currency: currency.to_string(),
+            exchange_rate,
+            note,
+            date,
+            recurring_id: None,
+            payee,
+        };
+        db.insert_transaction(&new_txn)?;
+        count += 1;
+    }
+
+    Ok(count)
+}