package models

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

type IWorkDay interface {
	Date() time.Time
	ToString() string
	IsWorkDay() bool
	IsKurzArbeit() bool
	GetDayProgress(User) int8
	RequiresAction() bool
	GetWorktimeReal(User, WorktimeBase) time.Duration
	GetPausetimeReal(User, WorktimeBase) time.Duration
	GetOvertimeReal(User, WorktimeBase) time.Duration
	GetWorktimeVirtual(User, WorktimeBase) time.Duration
	GetPausetimeVirtual(User, WorktimeBase) time.Duration
	GetOvertimeVirtual(User, WorktimeBase) time.Duration
	GetTimesReal(User, WorktimeBase) (work, pause, overtime time.Duration)
	GetTimesVirtual(User, WorktimeBase) (work, pause, overtime 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
}