carpool-service/storage/postgresql.go

495 lines
14 KiB
Go

package storage
import (
"context"
"database/sql"
"encoding/json"
"errors"
"fmt"
"os"
"strconv"
"ariga.io/atlas/sql/postgres"
"ariga.io/atlas/sql/schema"
"git.coopgo.io/coopgo-platform/carpool-service/internal"
"git.coopgo.io/coopgo-platform/carpool-service/interoperability/ocss"
"github.com/lib/pq"
_ "github.com/lib/pq"
"github.com/paulmach/orb/geojson"
"github.com/rs/zerolog/log"
"github.com/spf13/viper"
"github.com/stretchr/objx"
)
type PostgresqlStorage struct {
DbConnection *sql.DB
Schema string
Tables map[string]string
}
func NewPostgresqlStorage(cfg *viper.Viper) (PostgresqlStorage, error) {
var (
host = cfg.GetString("storage.db.psql.host")
port = cfg.GetString("storage.db.psql.port")
user = cfg.GetString("storage.db.psql.user")
password = cfg.GetString("storage.db.psql.password")
dbname = cfg.GetString("storage.db.psql.dbname")
sslmode = cfg.GetString("storage.db.psql.sslmode")
pg_schema = cfg.GetString("storage.db.psql.schema")
pgtables_regular_routes = cfg.GetString("storage.db.psql.tables.regular_routes")
pgtables_regular_route_schedules = cfg.GetString("storage.db.psql.tables.regular_route_schedules")
pgtables_punctual_routes = cfg.GetString("storage.db.psql.tables.punctual_routes")
pgtables_bookings = cfg.GetString("storage.db.psql.tables.bookings")
pgtables_journeys_cache = cfg.GetString("storage.db.psql.tables.journeys_cache")
)
portInt, _ := strconv.Atoi(port)
psqlconn := fmt.Sprintf("host=%s port=%d user=%s password=%s dbname=%s sslmode=%s", host, portInt, user, password, dbname, sslmode)
db, err := sql.Open("postgres", psqlconn)
if err != nil {
log.Error().Err(err).Msg("opening connection to postgresql failed")
return PostgresqlStorage{}, fmt.Errorf("connection to postgresql failed")
}
err = db.Ping()
if err != nil {
log.Error().Err(err).Msg("ping to postgresql failed")
return PostgresqlStorage{}, fmt.Errorf("connection to postgresql database failed")
}
return PostgresqlStorage{
DbConnection: db,
Schema: pg_schema,
Tables: map[string]string{
"regular_routes": fmt.Sprintf("%s.%s", pg_schema, pgtables_regular_routes),
"regular_route_schedules": fmt.Sprintf("%s.%s", pg_schema, pgtables_regular_route_schedules),
"punctual_routes": fmt.Sprintf("%s.%s", pg_schema, pgtables_punctual_routes),
"bookings": fmt.Sprintf("%s.%s", pg_schema, pgtables_bookings),
"journeys_cache": fmt.Sprintf("%s.%s", pg_schema, pgtables_journeys_cache),
},
}, nil
}
func (s PostgresqlStorage) CreateRegularRoutes(routes []*geojson.FeatureCollection) error {
log.Debug().Msg("Postgresql Storage - CreateRegularRoutes")
tx, err := s.DbConnection.Begin()
if err != nil {
log.Error().Err(err).Msg("error initializing transaction")
return err
}
defer tx.Rollback()
req_routes := fmt.Sprintf(`INSERT INTO %s (id, user_id, routes_group_id, grid_ids, is_driver, is_passenger, route)
VALUES ($1, $2, $3, $4,$5, $6, $7)`, s.Tables["regular_routes"])
stmt_routes, err := tx.Prepare(req_routes)
if err != nil {
log.Error().Err(err).Msg("error preparing regular routes statement for multiple inserts")
return err
}
defer stmt_routes.Close()
req_schedules := fmt.Sprintf(`INSERT INTO %s (route_id, day, time_of_day) VALUES ($1, $2, $3)`, s.Tables["regular_route_schedules"])
stmt_schedules, err := tx.Prepare(req_schedules)
if err != nil {
log.Error().Err(err).Msg("error preparing schedules statement for multiple inserts")
return err
}
defer stmt_schedules.Close()
for _, fc := range routes {
if fc != nil {
id := fc.ExtraMembers.MustString("id")
properties := objx.New(fc.ExtraMembers["properties"])
userid := properties.Get("user.id").Str()
gridids := fc.ExtraMembers["grid_ids"]
groupid := fc.ExtraMembers["routes_group_id"]
isdriver := properties.Get("is_driver").Bool()
ispassenger := properties.Get("is_passenger").Bool()
route, err := fc.MarshalJSON()
if err != nil {
log.Error().Err(err).Msg("error creating regular route")
return err
}
_, err = stmt_routes.Exec(id, userid, groupid, pq.Array(gridids), isdriver, ispassenger, route)
if err != nil {
log.Error().Err(err).Msg("error inserting regular route")
return err
}
schedules := properties.Get("schedules")
if schedules == nil {
err = errors.New("could not get schedules for route")
log.Error().Err(err).Str("route id", id).Msg("issue in CreateRegularRoute")
return err
}
for _, schedule := range schedules.MustObjxMapSlice() {
day := schedule.Get("day").Str()
timeOfDay := schedule.Get("time_of_day").Str()
_, err = stmt_schedules.Exec(id, day, timeOfDay)
if err != nil {
log.Error().Err(err).Msg("issue creating route schedule")
return err
}
}
}
}
if err = tx.Commit(); err != nil {
log.Error().Err(err).Msg("issue committing transaction")
return err
}
return nil
}
func (s PostgresqlStorage) GetUserRegularRoutes(userid string) ([]*geojson.FeatureCollection, error) {
req := fmt.Sprintf(`select id, route
from %s where user_id = $1`, s.Tables["regular_routes"])
rows, err := s.DbConnection.Query(req, userid)
if err != nil {
log.Error().Err(err).Str("request", req).Str("user id", userid).Msg("GetUserRegularRoutes query issue")
return nil, err
}
results := []*geojson.FeatureCollection{}
for rows.Next() {
var id string
var route []byte
err := rows.Scan(
&id,
&route,
)
if err != nil {
return nil, err
}
fc, err := geojson.UnmarshalFeatureCollection(route)
if err != nil {
return nil, err
}
results = append(results, fc)
}
return results, nil
}
func (s PostgresqlStorage) GetDriverRegularRoutesForTile(day string, gridId int64) (regular_routes []*geojson.FeatureCollection, err error) {
req := fmt.Sprintf(`select id, route
from %s inner join %s on id = route_id
where is_driver = true and day = $1 and $2 = ANY (grid_ids)`, s.Tables["regular_routes"], s.Tables["regular_route_schedules"])
rows, err := s.DbConnection.Query(req, day, gridId)
if err != nil {
log.Error().Err(err).Msg("GetDriverRegularRoutesForTile query error")
return nil, err
}
results := []*geojson.FeatureCollection{}
for rows.Next() {
var id string
var route []byte
err := rows.Scan(
&id,
&route,
)
if err != nil {
return nil, err
}
fc, err := geojson.UnmarshalFeatureCollection(route)
if err != nil {
return nil, err
}
results = append(results, fc)
}
return results, nil
}
func (s PostgresqlStorage) GetPassengerRegularRoutesForTile(day string, gridId int64) (regular_routes []*geojson.FeatureCollection, err error) {
req := fmt.Sprintf(`select id, route
from %s join %s on id = route_id
where is_passenger = true and day = $1 and $2 = ANY (grid_ids)`, s.Tables["regular_routes"], s.Tables["regular_route_schedules"])
rows, err := s.DbConnection.Query(req, day, gridId)
if err != nil {
return nil, err
}
results := []*geojson.FeatureCollection{}
for rows.Next() {
var id string
var route []byte
err := rows.Scan(
&id,
&route,
)
if err != nil {
return nil, err
}
fc, err := geojson.UnmarshalFeatureCollection(route)
if err != nil {
return nil, err
}
results = append(results, fc)
}
return results, nil
}
func (s PostgresqlStorage) CreateBooking(booking internal.Booking) error {
req := fmt.Sprintf(`insert into %s (id, booking, status, driver_route, passenger_route)
values($1, $2, $3, $4, $5)`, s.Tables["bookings"])
id := booking.ID
status := booking.Status.String()
jsonbooking, err := json.Marshal(booking)
if err != nil {
log.Error().Err(err).Msg("issue marshalling booking to json")
return err
}
var jsondriverroute, jsonpassengerroute *[]byte
if booking.DriverRoute != nil {
jdr, err := booking.DriverRoute.MarshalJSON()
if err != nil {
log.Error().Err(err).Msg("error marshalling driver route")
return err
}
jsondriverroute = &jdr
}
if booking.PassengerRoute != nil {
jpr, err := booking.PassengerRoute.MarshalJSON()
if err != nil {
log.Error().Err(err).Msg("error marshalling passenger route")
return err
}
jsonpassengerroute = &jpr
}
_, err = s.DbConnection.Exec(req, id, jsonbooking, status, jsondriverroute, jsonpassengerroute)
if err != nil {
log.Error().Err(err).Str("request", req).Msg("error creating booking")
return err
}
return nil
}
func (s PostgresqlStorage) GetBooking(id string) (*internal.Booking, error) {
req := fmt.Sprintf(`select booking, status, driver_route, passenger_route
from %s where id=$1`, s.Tables["bookings"])
var booking ocss.Booking
var status string
var bookingbytes, driverroute, passengerroute []byte
err := s.DbConnection.QueryRow(req, id).Scan(
&bookingbytes,
&status,
&driverroute,
&passengerroute,
)
if err != nil {
log.Error().Err(err).Str("booking id", id).Msg("not able to get and scan booking")
return nil, err
}
err = json.Unmarshal(bookingbytes, &booking)
if err != nil {
log.Error().Err(err).Msg("issue unmarshalling booking")
return nil, err
}
// Override booking status
booking.Status = ocss.BookingStatusFromString(status)
var dr, pr *geojson.FeatureCollection
if driverroute != nil {
dr, err = geojson.UnmarshalFeatureCollection(driverroute)
if err != nil {
log.Error().Err(err).Msg("could not unmarshal driver route feature collection")
return nil, err
}
}
if passengerroute != nil {
pr, err = geojson.UnmarshalFeatureCollection(passengerroute)
if err != nil {
log.Error().Err(err).Msg("could not unmarshal passenger route feature collection")
return nil, err
}
}
return &internal.Booking{
Booking: booking,
DriverRoute: dr,
PassengerRoute: pr,
}, nil
}
func (s PostgresqlStorage) UpdateBookingStatus(bookingid string, status string) error {
req := fmt.Sprintf(`update %s set status = $1 where id=$2`, s.Tables["bookings"])
_, err := s.DbConnection.Exec(req, status, bookingid)
if err != nil {
log.Error().Err(err).Str("request", req).Str("booking id", bookingid).Str("status", status).Msg("error while updating booking status")
}
return nil
}
func (s PostgresqlStorage) GetUserBookings(userid string) ([]internal.Booking, error) {
req := fmt.Sprintf(`select booking, status, driver_route, passenger_route from %s
where booking->'driver'->>'id' = $1 or booking->'passenger'->>'id' = $2`, s.Tables["bookings"])
rows, err := s.DbConnection.Query(req, userid, userid)
if err != nil {
log.Error().Err(err).Str("user id", userid).Msg("GetUserBookings query issue")
}
results := []internal.Booking{}
for rows.Next() {
var booking ocss.Booking
var status string
var bookingbytes, driverroute, passengerroute []byte
err := rows.Scan(
&bookingbytes,
&status,
&driverroute,
&passengerroute,
)
if err != nil {
log.Error().Err(err).Msg("not able to get and scan booking in GetUsersBooking")
return nil, err
}
err = json.Unmarshal(bookingbytes, &booking)
if err != nil {
log.Error().Err(err).Msg("issue unmarshalling booking in GetUsersBooking")
return nil, err
}
// Override booking status
booking.Status = ocss.BookingStatusFromString(status)
var dr, pr *geojson.FeatureCollection
if driverroute != nil {
dr, err = geojson.UnmarshalFeatureCollection(driverroute)
if err != nil {
log.Error().Err(err).Msg("could not unmarshal driver route feature collection")
return nil, err
}
}
if passengerroute != nil {
pr, err = geojson.UnmarshalFeatureCollection(passengerroute)
if err != nil {
log.Error().Err(err).Msg("could not unmarshal passenger route feature collection")
return nil, err
}
}
results = append(results, internal.Booking{
Booking: booking,
DriverRoute: dr,
PassengerRoute: pr,
})
}
return results, nil
}
func (s PostgresqlStorage) StoreRouteSchedules(journeys []internal.PlannedRouteSchedule) error {
tx, err := s.DbConnection.Begin()
if err != nil {
log.Error().Err(err).Msg("issue starting pg transaction")
return err
}
defer tx.Rollback()
req := fmt.Sprintf("insert into %s (id, data) values ($1, $2)", s.Tables["journeys_cache"])
stmt, err := tx.Prepare(req)
if err != nil {
log.Error().Err(err).Msg("issue creating prepared statement in StoreRouteSchedules")
return err
}
for _, j := range journeys {
jsonjourney, err := json.Marshal(j)
if err != nil {
log.Error().Err(err).Msg("error unmarshalling Route Schedule")
return err
}
stmt.Exec(j.ID, jsonjourney)
}
if err = tx.Commit(); err != nil {
log.Error().Err(err).Msg("issue while commiting transaction in StoreRouteSchedules")
return err
}
return nil
}
func (s PostgresqlStorage) GetRouteSchedule(id string) (*internal.PlannedRouteSchedule, error) {
req := fmt.Sprintf("select data from %s where id = $1", s.Tables["journeys_cache"])
var jsonjourney []byte
err := s.DbConnection.QueryRow(req, id).Scan(
&jsonjourney,
)
if err != nil {
log.Error().Err(err).Msg("issue scanning result in GetRouteSchedule")
return nil, err
}
var result internal.PlannedRouteSchedule
err = json.Unmarshal(jsonjourney, &result)
if err != nil {
log.Error().Err(err).Msg("error unmarshalling returned route schedule")
}
return &result, nil
}
func (s PostgresqlStorage) Migrate() error {
ctx := context.Background()
driver, err := postgres.Open(s.DbConnection)
if err != nil {
return err
}
existing, err := driver.InspectRealm(ctx, &schema.InspectRealmOption{Schemas: []string{s.Schema}})
if err != nil {
return err
}
var desired schema.Realm
hcl, err := os.ReadFile("postgresql/schema.hcl")
if err != nil {
return err
}
err = postgres.EvalHCLBytes(hcl, &desired, nil)
if err != nil {
return err
}
diff, err := driver.RealmDiff(existing, &desired)
if err != nil {
return err
}
err = driver.ApplyChanges(ctx, diff)
if err != nil {
return err
}
return nil
}