Files
arbeitszeitmessung/Backend/models/booking.go

264 lines
6.8 KiB
Go

package models
import (
"arbeitszeitmessung/helper"
"database/sql"
"fmt"
"log"
"net/url"
"sort"
"strconv"
"time"
)
type SameBookingError struct{}
func (e SameBookingError) Error() string {
return "the same booking already exists!"
}
type Booking struct {
CardUID string `json:"card_uid"`
GeraetID int16 `json:"geraet_id"`
CheckInOut int16 `json:"check_in_out"`
Timestamp time.Time `json:"timestamp"`
CounterId int `json:"counter_id"`
}
var DB *sql.DB
func (b *Booking) New(card_uid string, geraet_id int16, check_in_out int16) Booking {
return Booking{
CardUID: card_uid,
GeraetID: geraet_id,
CheckInOut: check_in_out,
}
}
func (b *Booking) FromUrlParams(params url.Values) Booking {
var booking Booking
if _check_in_out, err := strconv.Atoi(params.Get("check_in_out")); err == nil {
booking.CheckInOut = int16(_check_in_out)
}
if _geraet_id, err := strconv.Atoi(params.Get("geraet_id")); err == nil {
booking.GeraetID = int16(_geraet_id)
}
booking.CardUID = params.Get("card_uid")
return booking
}
func (b *Booking) Verify() bool {
//check for overlapping time + arbeitszeit verstoß
if b.CardUID == "" { //|| b.GeraetID == 0 || b.CheckInOut == 0 {
return false
}
return true
}
func (b *Booking) Insert() error {
if !checkLastBooking(*b) {
return SameBookingError{}
}
stmt, err := DB.Prepare((`INSERT INTO anwesenheit (card_uid, geraet_id, check_in_out) VALUES ($1, $2, $3) RETURNING counter_id, timestamp`))
if err != nil {
return err
}
err = stmt.QueryRow(b.CardUID, b.GeraetID, b.CheckInOut).Scan(&b.CounterId, &b.Timestamp)
if err != nil {
return err
}
return nil
}
func (b *Booking) InsertWithTimestamp() error {
if b.Timestamp.IsZero() {
return b.Insert()
}
stmt, err := DB.Prepare((`INSERT INTO anwesenheit (card_uid, geraet_id, check_in_out, timestamp) VALUES ($1, $2, $3, $4) RETURNING counter_id`))
if err != nil {
return err
}
err = stmt.QueryRow(b.CardUID, b.GeraetID, b.CheckInOut, b.Timestamp).Scan(&b.CounterId)
if err != nil {
return err
}
return nil
}
func (b *Booking) GetBookingById(booking_id int) (Booking, error) {
var booking Booking
qStr, err := DB.Prepare((`SELECT counter_id, timestamp, card_uid, geraet_id, check_in_out FROM anwesenheit WHERE counter_id = $1`))
if err != nil {
return booking, err
}
err = qStr.QueryRow(booking_id).Scan(&booking.CounterId, &booking.Timestamp, &booking.CardUID, &booking.GeraetID, &booking.CheckInOut)
if err != nil {
return booking, err
}
// if !booking.Verify() {
// fmt.Printf("Booking verification failed! %d", )
// return booking, nil
// }
return booking, nil
}
// Gets all booking based on a card uid
//
// optional filter parameter
func (b *Booking) GetBookingsByCardID(card_uid string, tsFrom time.Time, tsTo time.Time) ([]Booking, error) {
qStr, err := DB.Prepare((`SELECT counter_id, timestamp, card_uid, geraet_id, check_in_out FROM anwesenheit WHERE card_uid = $1 AND timestamp BETWEEN $2 AND $3 ORDER BY timestamp`))
if err != nil {
return nil, err
}
defer qStr.Close()
var bookings []Booking
rows, err := qStr.Query(card_uid, tsFrom, tsTo)
if err == sql.ErrNoRows {
return bookings, err
}
if err != nil {
return nil, err
}
defer rows.Close()
for rows.Next() {
var booking Booking
if err := rows.Scan(&booking.CounterId, &booking.Timestamp, &booking.CardUID, &booking.GeraetID, &booking.CheckInOut); err != nil {
return bookings, err
}
bookings = append(bookings, booking)
}
if err = rows.Err(); err != nil {
return bookings, err
}
return bookings, nil
}
func (b *Booking) GetBookingsGrouped(card_uid string, tsFrom time.Time, tsTo time.Time) ([]WorkDay, error) {
var grouped = make(map[string][]Booking)
bookings, err := b.GetBookingsByCardID(card_uid, tsFrom, tsTo)
if err != nil {
log.Println("Failed to get bookings", err)
return []WorkDay{}, nil
}
for _, booking := range bookings {
day := booking.Timestamp.Truncate(24 * time.Hour)
key := day.Format("2006-01-02")
grouped[key] = append(grouped[key], booking)
}
var result []WorkDay
for key, bookings := range grouped {
day, _ := time.Parse("2006-01-02", key)
sort.Slice(bookings, func(i, j int) bool {
return bookings[i].Timestamp.Before(bookings[j].Timestamp)
})
workDay := WorkDay{Day: day, Bookings: bookings}
workDay.getWorkTime()
result = append(result, workDay)
}
sort.Slice(result, func(i, j int) bool {
return result[i].Day.After(result[j].Day)
})
return result, nil
}
func (b Booking) Save() {
qStr, err := DB.Prepare((`UPDATE "anwesenheit" SET "card_uid" = $2, "geraet_id" = $3, "check_in_out" = $4, "timestamp" = $5 WHERE "counter_id" = $1;`))
if err != nil {
log.Fatalf("Error preparing query: %v", err)
return
}
_, err = qStr.Query(b.CounterId, b.CardUID, b.GeraetID, b.CheckInOut, b.Timestamp)
if err != nil {
log.Fatalf("Error executing query: %v", err)
return
}
}
func (b *Booking) GetBookingType() string {
debug := (helper.GetEnv("GO_ENV", "production") == "debug")
switch b.CheckInOut {
case 1: //manuelle Änderung
return "kommen"
case 3:
if debug {
return "kommen manuell"
}
return "kommen"
case 2: //manuelle Änderung
return "gehen"
case 4:
if debug {
return "gehen manuell"
}
return "gehen"
case 254:
return "abgemeldet"
default:
return "Buchungs Typ unbekannt"
}
}
func (b *Booking) Update(nb Booking) {
if b.CheckInOut != nb.CheckInOut && nb.CheckInOut != 0 {
b.CheckInOut = nb.CheckInOut
}
if b.CardUID != nb.CardUID && nb.CardUID != "" {
b.CardUID = nb.CardUID
}
if b.GeraetID != nb.GeraetID && nb.GeraetID != 0 {
b.GeraetID = nb.GeraetID
}
if b.Timestamp != nb.Timestamp {
b.Timestamp = nb.Timestamp
}
}
func checkLastBooking(b Booking) bool {
var check_in_out int
stmt, err := DB.Prepare((`SELECT check_in_out FROM "anwesenheit" WHERE "card_uid" = $1 ORDER BY "timestamp" DESC LIMIT 1;`))
if err != nil {
log.Fatalf("Error preparing query: %v", err)
return false
}
err = stmt.QueryRow(b.CardUID).Scan(&check_in_out)
if err == sql.ErrNoRows {
return true
}
if err != nil {
log.Println("Error checking last booking: ", err)
return false
}
if int16(check_in_out)%2 == b.CheckInOut%2 {
return false
}
return true
}
func (b *Booking) UpdateTime(newTime time.Time) {
hour, minute, _ := newTime.Clock()
if hour == b.Timestamp.Hour() && minute == b.Timestamp.Minute() {
return
}
// TODO: add check for time overlap
var newBooking Booking
newBooking.Timestamp = time.Date(b.Timestamp.Year(), b.Timestamp.Month(), b.Timestamp.Day(), hour, minute, 0, 0, b.Timestamp.Location())
if b.CheckInOut < 3 {
newBooking.CheckInOut = b.CheckInOut + 2
}
if b.CheckInOut == 254 {
newBooking.CheckInOut = 4
}
log.Println("Updating")
b.Update(newBooking)
b.Verify()
b.Save()
}
func (b *Booking) ToString() string {
return fmt.Sprintf("Booking %d: at: %s, as type: %d", b.CounterId, b.Timestamp.Format("15:04"), b.CheckInOut)
}