refactored into impl and added get validity function

src/models.rs

@@ -1,16 +1,25 @@
+use chrono::NaiveDateTime;
+use regex::Regex;
+
 pub struct Notice {
     pub affected_lines: Vec<String>,
     pub dest_1: String,
     pub dest_2: String,
     pub headline: String,
     pub detail: String,
-    pub from: u32,
-    pub to: u32,
+    pub from: Option<NaiveDateTime>,
+    pub to: Option<NaiveDateTime>,
     pub last_modified: String,
 }
 
-pub fn get_line_color(line_number: &str) -> (u8, u8, u8) {
-    match line_number {
+impl Notice {
+    pub fn get_line_color(&self) -> (u8, u8, u8) {
+        match self
+            .affected_lines
+            .first()
+            .expect("Does not affect any line")
+            .as_str()
+        {
             // Rot: Linien 1, 2, 8
             "1" | "2" | "8" => (238, 66, 36),
 
@@ -26,4 +35,28 @@ pub fn get_line_color(line_number: &str) -> (u8, u8, u8) {
             // Fallback (z.B. für das Standard-Blau aus deiner API)
             _ => (55, 101, 174),
         }
+    }
+
+    pub fn get_validity_period(&mut self) {
+        let re = Regex::new(
+            r"Gültig ab (\d{2}\.\d{2}\.\d{4} \d{2}:\d{2}) bis (\d{2}\.\d{2}\.\d{4} \d{2}:\d{2})",
+        )
+        .unwrap();
+
+        if let Some(caps) = re.captures(&self.detail) {
+            let valid_from = caps.get(1).unwrap().as_str();
+            let valid_to = caps.get(1).unwrap().as_str();
+            let format = "%d.%m.%Y %H:%M";
+
+            if let (Ok(start_dt), Ok(end_dt)) = (
+                NaiveDateTime::parse_from_str(valid_from, format),
+                NaiveDateTime::parse_from_str(valid_to, format),
+            ) {
+                self.from = Some(start_dt);
+                self.to = Some(end_dt);
+            }
+        } else {
+            println!("No validity period found in the text.");
+        }
+    }
 }