// list of algos/methods that make sure the state of the schedule is still fair

use crate::model::{Day, MonthlySchedule, Resident};

// return yes if any resident has a shift in back to bacak days
// TODO: performance: this could only check the current recursion resident otherwise we would have cut the branch earlier
pub fn back_to_back_shifts(schedule: &MonthlySchedule) -> bool {
    schedule.contains_any_consecutive_shifts()
}

// return yes if the same resident has a shift on a sunday and also the next saturday
pub fn sunday_and_next_saturday_shifts(schedule: &MonthlySchedule, resident: &Resident) -> bool {
    todo!()
}

// find if a pair exists doing a shift at the same day, if yes return true
pub fn pair_exists(
    schedule: &MonthlySchedule,
    resident_a: &Resident,
    resident_b: &Resident,
) -> bool {
    todo!()
}

// if day is odd then open otherwise closed
pub fn is_closed(day: &Day) -> bool {
    todo!()
}

// here include:
// if total shifts are 50 and there are 5 residents BUT this resident has reduced workload, he should to 9 instead of 10
// if resident has specific shift types then see he is not put in a wrong shift type
// if resident has a max limit of shifts see that he is not doing more
pub fn are_personal_restrictions_met(resident: &Resident) -> bool {
    todo!()
}