from datetime import datetime
from typing import Dict, List

import pandas as pd
from dateutil.parser import parse

from type_alias import EARLY_MODE, LATE_MODE


class WorkingTime(object):

    def __init__(self, date: datetime, checkin: str, checkout: str,
                 config) -> None:
        self.MORNING_IN = parse(config.WORKING_TIME.MORNING_IN)
        self.MORNING_OUT = parse(config.WORKING_TIME.MORNING_OUT)
        self.AFTERNOON_IN = parse(config.WORKING_TIME.AFTERNOON_IN)
        self.AFTERNOON_OUT = parse(config.WORKING_TIME.AFTERNOON_OUT)
        self.LATE_TIME: Dict[str, int] = dict(
            morning_in=config.LATE.MORNING_IN,
            morning_out=config.LATE.MORNING_OUT,
            afternoon_in=config.LATE.AFTERNOON_IN,
            afternoon_out=config.LATE.AFTERNOON_OUT)
        self.ROUND_GAP = config.WORKING_TIME.ROUND_GAP

        self.date = datetime.strftime(date, "%d/%m/%Y")

        self.error: bool = False
        if checkin == 0:
            # self.checkin = -1
            self.error = True
        else:
            self.checkin = parse(checkin)
            if self.checkin < self.MORNING_IN:
                self.checkin = parse("08:00")

        if checkout == 0:
            # self.checkout = -1
            self.error = True
        else:
            self.checkout = parse(checkout)
            if self.checkout > self.AFTERNOON_OUT:
                self.checkout = parse("17:00")

    def __repr__(self) -> str:
        return "{" + ";\n".join(f"{k}={getattr(self, k)}"
                                for k in self.__dict__) + "}"

    def get_late_checkin(self, time: datetime, mode: LATE_MODE) -> int:
        is_penalty_count: int = 0
        if mode == 'morning_in':
            target_time: datetime = self.MORNING_IN
            acceptable: int = self.LATE_TIME.get('MORNING_IN', 30)
        elif mode == 'afternoon_in':
            target_time: datetime = self.AFTERNOON_IN
            acceptable: int = self.LATE_TIME.get('AFTERNOON_IN', 30)
        if time < target_time:
            return 0
        late_time = (time - target_time).seconds // 60
        if late_time > acceptable:
            is_penalty_count = 1
        return is_penalty_count * late_time

    def get_early_checkout(self, time: datetime, mode: EARLY_MODE) -> int:
        is_penalty_count: int = 0
        if mode == 'morning_out':
            target_time: datetime = self.MORNING_OUT
            acceptable: int = self.LATE_TIME.get('MORNING_OUT', 0)
        elif mode == 'afternoon_out':
            target_time: datetime = self.AFTERNOON_OUT
            acceptable: int = self.LATE_TIME.get('AFTERNOON_OUT', 0)
        if time > target_time:
            return 0
        early_time = (target_time - time).seconds // 60
        if early_time > acceptable:
            is_penalty_count = 1
        return is_penalty_count * early_time

    def morning_shift(self):
        if self.error:
            return 0
        if self.checkin > self.MORNING_OUT:
            return 0
        if self.checkout < self.MORNING_IN:
            return 0
        late_checkin_penalty = self.get_late_checkin(time=self.checkin,
                                                     mode='morning_in')
        early_checkout_penalty = self.get_early_checkout(time=self.checkout,
                                                         mode='morning_out')
        return (self.MORNING_OUT - self.MORNING_IN
                ).seconds // 60 - late_checkin_penalty - early_checkout_penalty

    def afternoon_shift(self):
        if self.error:
            return 0
        if self.checkout < self.AFTERNOON_IN:
            return 0
        if self.checkin > self.AFTERNOON_OUT:
            return 0
        late_checkin_penalty = self.get_late_checkin(time=self.checkin,
                                                     mode='afternoon_in')
        early_checkout_penalty = self.get_early_checkout(time=self.checkout,
                                                         mode='afternoon_out')
        return (self.AFTERNOON_OUT - self.AFTERNOON_IN
                ).seconds // 60 - late_checkin_penalty - early_checkout_penalty

    def working_time(self):
        return self.morning_shift() + self.afternoon_shift()

    def normalize(self, num: int) -> int:
        gap = 15
        return round(num / gap) * gap

    def to_tuple(self):
        if self.error:
            return self.date, 0
        return self.date, self.normalize(self.working_time())


class Employee(object):

    def __init__(self,
                 id: str,
                 name: str,
                 workdate: Dict[str, int] = {}) -> None:
        self.id = id
        self.name = name
        self.workdate = workdate

    def __repr__(self) -> str:
        return "{" + ";\n".join(f"{k}={getattr(self, k)}"
                                for k in self.__dict__) + "}"


class WorkingTable(object):

    def __init__(self) -> None:
        pass

    def make_table(self, employees: List[Employee]):
        id_list: List[str] = []
        name_list: List[str] = []
        work_date: List[Dict] = []
        for employee in employees:
            id_list.append(employee.id)
            name_list.append(employee.name)
            work_date.append(employee.workdate)
        work_df: pd.DataFrame = pd.DataFrame(work_date, dtype=int)
        info_df: pd.DataFrame = pd.DataFrame({
            'Mã nhân viên': id_list,
            'Tên nhân viên': name_list
        })
        working_table: pd.DataFrame = pd.concat(objs=[info_df, work_df],
                                                axis=1)
        return working_table