package models

import (
	"arbeitszeitmessung/helper"
	"log"
	"time"
)

type IWorkDay interface {
	Date() time.Time
	ToString() string
	IsWorkDay() bool
	IsKurzArbeit() bool
	GetDayProgress(User) int8
	RequiresAction() bool
	GetWorktime(User, WorktimeBase, bool) time.Duration
	GetPausetime(User, WorktimeBase, bool) time.Duration
	GetTimes(User, WorktimeBase, bool) (work, pause, overtime time.Duration)
	GetOvertime(User, WorktimeBase, bool) time.Duration
}

func GetDays(user User, tsFrom, tsTo time.Time, orderedForward bool) []IWorkDay {
	var allDays map[string]IWorkDay = make(map[string]IWorkDay)

	for _, day := range GetWorkDays(user, tsFrom, tsTo) {
		allDays[day.Date().Format(time.DateOnly)] = &day
	}
	absences, err := GetAbsencesByCardUID(user.CardUID, tsFrom, tsTo)
	if err != nil {
		log.Println("Error gettings absences for all Days!", err)
		return nil
	}
	for _, day := range absences {
		if helper.IsWeekend(day.Date()) {
			continue
		}
		// Absence should be integrated in workday
		switch {
		case day.AbwesenheitTyp.WorkTime < 0:
			if workDay, ok := allDays[day.Date().Format(time.DateOnly)].(*WorkDay); ok {
				workDay.kurzArbeit = true
				workDay.kurzArbeitAbsence = day
			}
		case day.AbwesenheitTyp.WorkTime < 100:
			if workDay, ok := allDays[day.Date().Format(time.DateOnly)].(*WorkDay); ok {
				workDay.worktimeAbsece = day
			}
		default:
			allDays[day.Date().Format(time.DateOnly)] = &day
		}
	}

	sortedDays := sortDays(allDays, orderedForward)
	return sortedDays
}