Remove min by shift type boundaries, improve logging, add more tests, add logs in tests, move fixtures in separate file, move restrictions_violated logic into valid_residents of next slot

src-tauri/src/config.rs

@@ -1,13 +1,16 @@
+use std::collections::HashMap;
+
 use anyhow::Context;
 use chrono::Month;
 use serde::{Deserialize, Serialize};
 
 use crate::{
     resident::{Resident, ResidentDTO, ResidentId},
+    schedule::ShiftType,
     slot::Day,
 };
 
-const MONTH: u8 = 2;
+const MONTH: u8 = 4;
 const YEAR: i32 = 2026;
 
 #[derive(Debug, Clone)]
@@ -87,6 +90,21 @@ impl UserConfig {
         day.is_weekend(self.month.number_from_month(), self.year)
             || self.holidays.contains(&(day.0))
     }
+
+    pub fn get_initial_supply(&self) -> HashMap<ShiftType, u8> {
+        let mut supply = HashMap::new();
+        let total_days = self.total_days;
+
+        for d in 1..=total_days {
+            if Day(d).is_open_shift() {
+                *supply.entry(ShiftType::OpenFirst).or_insert(0) += 1;
+                *supply.entry(ShiftType::OpenSecond).or_insert(0) += 1;
+            } else {
+                *supply.entry(ShiftType::Closed).or_insert(0) += 1;
+            }
+        }
+        supply
+    }
 }
 
 impl Default for UserConfig {
@@ -153,3 +171,18 @@ impl TryFrom<UserConfigDTO> for UserConfig {
         })
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use crate::{config::UserConfig, fixtures::complex_config, schedule::ShiftType};
+    use rstest::rstest;
+
+    #[rstest]
+    fn test_get_initial_supply(complex_config: UserConfig) {
+        let supply = complex_config.get_initial_supply();
+
+        assert_eq!(15, *supply.get(&ShiftType::OpenFirst).unwrap());
+        assert_eq!(15, *supply.get(&ShiftType::OpenSecond).unwrap());
+        assert_eq!(15, *supply.get(&ShiftType::Closed).unwrap());
+    }
+}