import json
import os

def load_vacancies(filepath: str) -> list[dict]:
    try:
        with open(filepath,"r") as file:
            return json.load(file)
    except:
        print()    
        return []

def filter_by_city(vacancies: list[dict], city: str) -> list[dict]:
    return [i for i in vacancies if i.get('city').lower() == city.lower()]
def filter_by_skills(vacancies: list[dict], required_skills: list[str]) -> list[dict]:
    return [i for i in vacancies if i.get('skills')]
def filter_by_salary(vacancies: list[dict], min_salary: int) -> list[dict]:
    return []
def extract_unique_companies(vacancies: list[dict]) -> list[str]:
    return []
def extract_top_skills(vacancies: list[dict], top_n: int) -> list[tuple[str, int]]:
    return []
def calculate_average_salary(vacancies: list[dict]) -> float:
    return 0.0
def group_by_company(vacancies: list[dict]) -> dict[str, int]:
    return {}
def format_vacancy_short(vacancy: dict) -> str:
    return 
def save_filtered_results(vacancies: list[dict], filename: str) -> bool:
    return 
def interface():
    os.system('cls' if os.name == 'nt' else 'clear')
    print ("Your command:")
    print ("1. Load form json\n2. Filter by city\n3. Filter by skils\n4. Filter by salary")
    print ("5. Extract unique companies\n6. Extract top skills\n7. Calculate average salary")
    print ("8. Group by company\n9. Format vacancy short\n10. Save filtred results")
def user_chouse(user_input:int):
    match user_input:
        case 1:

            return load_vacancies(input("Path for json: "))
        case _:
            print ("Error uncorrecteble number")
def main():
    interface()
    user_input = int(input("Chouse command: "))
    user_chouse(user_input)

if __name__ =="__main__":
    #вход проги 
    main()