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package model
import (
"database/sql"
"log"
"time"
"stevenlr.com/locker/utils"
)
func GenerateLockToken() (string, error) {
return utils.GenerateRandomString(66)
}
type Lock struct {
Id UUID
Name string
StartTime Time
EndTime Time
Owner UUID
Token string
}
func (self Lock) IsFinished() bool {
return MakeTimeNow().Compare(self.EndTime) >= 0
}
func InsertLock(tx *sql.Tx, name string, seconds int, ownerId UUID) error {
now := MakeTimeNow()
end := Time(time.Time(now).Add(time.Duration(seconds) * time.Second))
id := MakeUUID()
token, _ := GenerateLockToken()
_, err := tx.Exec(`
INSERT INTO Lock VALUES ($1, $2, $3, $4, $5, $6)`, id, name, now, end, ownerId, token)
return err
}
func GetLocksForUser(db *sql.DB, owner UUID) []Lock {
rows, err := db.Query("SELECT Id, Name FROM Lock WHERE Owner=$1", owner)
if err != nil {
log.Fatalln(err)
}
locks := []Lock{}
for rows.Next() {
var t Lock
if err := rows.Scan(&t.Id, &t.Name); err == nil {
locks = append(locks, t)
}
}
return locks
}
func GetLockForUser(db *sql.DB, id UUID, userId UUID) *Lock {
row := db.QueryRow("SELECT Id, Name, StartTime, EndTime, Owner, Token FROM Lock WHERE Id=$1 AND Owner=$2", id, userId)
var t Lock
if err := row.Scan(&t.Id, &t.Name, &t.StartTime, &t.EndTime, &t.Owner, &t.Token); err == nil {
return &t
}
return nil
}
func GetLockWithToken(db *sql.DB, id UUID, token string) *Lock {
row := db.QueryRow("SELECT Id, Name, StartTime, EndTime, Owner, Token FROM Lock WHERE Id=$1 AND Token=$2", id, token)
var t Lock
if err := row.Scan(&t.Id, &t.Name, &t.StartTime, &t.EndTime, &t.Owner, &t.Token); err == nil {
return &t
}
return nil
}
func DeleteLock(db *sql.DB, id UUID, userId UUID) bool {
res, err := db.Exec("DELETE FROM Lock WHERE Id=$1 AND Owner=$2", id, userId)
if err != nil {
return false
}
affected, err := res.RowsAffected()
return err == nil && affected == 1
}
func UpdateLockEndTime(db *sql.DB, id UUID, endTime Time, userId UUID) bool {
res, err := db.Exec("UPDATE Lock SET EndTime=$1 WHERE Id=$2 AND Owner=$3", endTime, id, userId)
if err != nil {
return false
}
affected, err := res.RowsAffected()
return err == nil && affected == 1
}
func RegenerateLockToken(db *sql.DB, id UUID, userId UUID) bool {
newToken, err := GenerateLockToken()
if err != nil {
return false
}
res, err := db.Exec("UPDATE Lock SET Token=$1 WHERE Id=$2 AND Owner=$3", newToken, id, userId)
if err != nil {
return false
}
affected, err := res.RowsAffected()
return err == nil && affected == 1
}
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