first commit

src/utilities/hospital.rs

@@ -0,0 +1,177 @@
+use core::panic;
+use std::io;
+use chrono::{offset::LocalResult, DateTime, Datelike, Duration, Local, TimeZone};
+
+struct Hospital {
+    id: u32,
+    name: String,
+}
+
+// struct Schedule {
+//     from: DateTime<chrono_tz::Tz>,
+//     to: DateTime<chrono_tz::Tz>,
+// }
+
+pub fn create_hospital_list() {
+
+    // create the hospitals
+    let hospitals: [Hospital; 2] = [
+        Hospital {
+            id: 1,
+            name: "Centre Hospitalier".to_string(),
+        },
+        Hospital {
+            id: 2,
+            name: "Hopital Kirchberg".to_string(),
+        },
+    ];
+
+    // let mut start: DateTime<Local> = Local.with_ymd_and_hms(2025, 1, 6, 8, 0, 0).unwrap(); // set date for testing
+    let mut start: DateTime<Local> = Local::now();
+    let mut end: DateTime<Local> = get_end_of_shift(start);
+
+    println!("It is now {} and the current Shift is ending on {}", start.format("%A %d/%m/%Y %H:%M"), end.format("%A %d/%m/%Y %H:%M"));
+    println!("Whitch Hospital is actualy on duty?");
+
+    // print out the hospitals
+    for hospital in &hospitals {
+        println!("{}) {}", hospital.id, hospital.name)
+    }
+
+    let mut hospital_id_input = String::new();
+    io::stdin()
+        .read_line(&mut hospital_id_input)
+        .expect("Failed to read the line");
+    let hospital_id_input = hospital_id_input.trim();
+    let hospital_id: i32 = match hospital_id_input.parse() {
+        Ok(num) => num,
+        Err(_) => {
+            println!("Please enter a valid number!");
+            return;
+        }
+    };
+    let mut hospital_index: usize = (hospital_id - 1) as usize;
+
+    for _ in 1..=100 {
+
+        // Print the current hospital on duty
+        println!("From {} to {} is {} on duty.", start.format("%A %d/%m/%Y %H:%M"), end.format("%A %d/%m/%Y %H:%M"), hospitals[hospital_index].name );
+
+        // new shift
+        start = end;
+        end = get_end_of_shift(start);
+
+        // change hospital
+        hospital_index = if hospital_index == 0 { 1 } else { 0 }
+    }
+
+
+}
+
+fn get_end_of_shift(start: DateTime<Local>) -> DateTime<Local> {
+
+    let end: DateTime<Local>;
+
+    // define weekday & hour
+    let weekday_str: String = start.format("%u").to_string();
+    let weekday: u32 = weekday_str.parse().unwrap();
+    let hour_str: String = start.format("%H").to_string();
+    let hour: u32 = hour_str.parse().unwrap();
+
+    // From Monday to Thursday before 7:00
+    if weekday >= 1 && weekday <= 4 && hour < 7 {
+        
+        let next_day: DateTime<Local> = start;
+        let year: i32 = next_day.year();
+        let month: u32 = next_day.month();
+        let day: u32 = next_day.day();
+        
+        let local_result: LocalResult<DateTime<Local>> = Local.with_ymd_and_hms(year, month, day, 7, 0, 0);
+        end = match local_result {
+            LocalResult::None => {
+                panic!("The specified date and time do not exist.");
+            },
+            LocalResult::Single(datetime) => datetime,
+            LocalResult::Ambiguous(datetime1, _datetime2, ) => {
+                datetime1
+            }
+        };
+
+    // From Monday to Wednesday after 7:00
+    } else if weekday >= 1 && weekday <= 3 && hour >= 7 {
+
+        let next_day: DateTime<Local> = start + Duration::days(1);
+        let year: i32 = next_day.year();
+        let month: u32 = next_day.month();
+        let day: u32 = next_day.day();
+        
+        let local_result: LocalResult<DateTime<Local>> = Local.with_ymd_and_hms(year, month, day, 7, 0, 0);
+        end = match local_result {
+            LocalResult::None => {
+                panic!("The specified date and time do not exist.");
+            },
+            LocalResult::Single(datetime) => datetime,
+            LocalResult::Ambiguous(datetime1, _datetime2, ) => {
+                datetime1
+            }
+        };
+
+    } else if weekday == 4 && hour >= 7 {
+
+        let next_day: DateTime<Local> = start + Duration::days(1);
+        let year: i32 = next_day.year();
+        let month: u32 = next_day.month();
+        let day: u32 = next_day.day();
+        
+        let local_result: LocalResult<DateTime<Local>> = Local.with_ymd_and_hms(year, month, day, 17, 0, 0);
+        end = match local_result {
+            LocalResult::None => {
+                panic!("The specified date and time do not exist.");
+            },
+            LocalResult::Single(datetime) => datetime,
+            LocalResult::Ambiguous(datetime1, _datetime2, ) => {
+                datetime1
+            }
+        };
+
+    } else if weekday == 5 && hour < 17 {
+
+        let next_day: DateTime<Local> = start;
+        let year: i32 = next_day.year();
+        let month: u32 = next_day.month();
+        let day: u32 = next_day.day();
+        
+        let local_result: LocalResult<DateTime<Local>> = Local.with_ymd_and_hms(year, month, day, 17, 0, 0);
+        end = match local_result {
+            LocalResult::None => {
+                panic!("The specified date and time do not exist.");
+            },
+            LocalResult::Single(datetime) => datetime,
+            LocalResult::Ambiguous(datetime1, _datetime2, ) => {
+                datetime1
+            }
+        };
+
+    // Friday after 17:00
+    } else {
+
+        let count_days: i64 = 8 - weekday as i64;
+        let next_day: DateTime<Local> = start + Duration::days(count_days);
+        let year: i32 = next_day.year();
+        let month: u32 = next_day.month();
+        let day: u32 = next_day.day();
+        
+        let local_result: LocalResult<DateTime<Local>> = Local.with_ymd_and_hms(year, month, day, 7, 0, 0);
+        end = match local_result {
+            LocalResult::None => {
+                panic!("The specified date and time do not exist.");
+            },
+            LocalResult::Single(datetime) => datetime,
+            LocalResult::Ambiguous(datetime1, _datetime2, ) => {
+                datetime1
+            }
+        };
+    }
+    
+    end
+}