feat: init

internal/repository/helpers.go

@@ -0,0 +1,22 @@
+package repository
+
+import (
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+func UUIDToPg(in uuid.UUID) pgtype.UUID {
+	if in == uuid.Nil {
+		return pgtype.UUID{}
+	}
+
+	return pgtype.UUID{Bytes: in, Valid: true}
+}
+
+func PGToUUID(in pgtype.UUID) uuid.UUID {
+	if !in.Valid {
+		return uuid.Nil
+	}
+
+	return in.Bytes
+}

internal/repository/migrations/0001_init.up.sql

@@ -0,0 +1,29 @@
+create table users (
+    id              uuid        primary key,
+    login           text        not null
+);
+
+create type status as enum ('active', 'offline', 'busy');
+
+create table stations (
+    id              uuid        primary key,
+    slug            text        not null,
+    status          status      not null
+);
+
+create table satellites (
+    id              uuid        primary key,
+    display_name    text        not null,
+    status          status      not null
+);
+
+create table subscriptions (
+    id              uuid        primary key,
+    user_id         uuid        not null references users(id),
+    station_id      uuid        null references satellites(id),
+    satellite_id    uuid        null references stations(id),
+    created_at      timestamp   not null,
+    updated_at      timestamp   not null,
+
+    check (station_id is not null or satellite_id is not null)
+);

internal/repository/queries/queries.sql

@@ -0,0 +1,4 @@
+-- name: GetStationByID :one
+select *
+from stations
+where id = @id;

internal/repository/repository.go

@@ -0,0 +1,26 @@
+package repository
+
+import (
+	"context"
+
+	"git.intra.yksa.space/gsn/gsn-proxy/internal/ds"
+	"git.intra.yksa.space/gsn/gsn-proxy/internal/repository/sqlc"
+	"github.com/google/uuid"
+)
+
+type Repository struct {
+	queries *sqlc.Queries
+}
+
+func (r *Repository) GetStationByID(ctx context.Context, ID uuid.UUID) (ds.Station, error) {
+	ret, err := r.queries.GetStationByID(ctx, UUIDToPg(ID))
+	if err != nil {
+		return ds.Station{}, err
+	}
+
+	return ds.Station{
+		ID:     PGToUUID(ret.ID),
+		Slug:   ret.Slug,
+		Status: ds.Status(ret.Status),
+	}, nil
+}

internal/repository/sqlc/db.go

@@ -0,0 +1,32 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+
+package sqlc
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+type DBTX interface {
+	Exec(context.Context, string, ...interface{}) (pgconn.CommandTag, error)
+	Query(context.Context, string, ...interface{}) (pgx.Rows, error)
+	QueryRow(context.Context, string, ...interface{}) pgx.Row
+}
+
+func New(db DBTX) *Queries {
+	return &Queries{db: db}
+}
+
+type Queries struct {
+	db DBTX
+}
+
+func (q *Queries) WithTx(tx pgx.Tx) *Queries {
+	return &Queries{
+		db: tx,
+	}
+}

internal/repository/sqlc/models.go

@@ -0,0 +1,81 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+
+package sqlc
+
+import (
+	"database/sql/driver"
+	"fmt"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+type Status string
+
+const (
+	StatusActive  Status = "active"
+	StatusOffline Status = "offline"
+	StatusBusy    Status = "busy"
+)
+
+func (e *Status) Scan(src interface{}) error {
+	switch s := src.(type) {
+	case []byte:
+		*e = Status(s)
+	case string:
+		*e = Status(s)
+	default:
+		return fmt.Errorf("unsupported scan type for Status: %T", src)
+	}
+	return nil
+}
+
+type NullStatus struct {
+	Status Status
+	Valid  bool // Valid is true if Status is not NULL
+}
+
+// Scan implements the Scanner interface.
+func (ns *NullStatus) Scan(value interface{}) error {
+	if value == nil {
+		ns.Status, ns.Valid = "", false
+		return nil
+	}
+	ns.Valid = true
+	return ns.Status.Scan(value)
+}
+
+// Value implements the driver Valuer interface.
+func (ns NullStatus) Value() (driver.Value, error) {
+	if !ns.Valid {
+		return nil, nil
+	}
+	return string(ns.Status), nil
+}
+
+type Satellite struct {
+	ID          pgtype.UUID
+	DisplayName string
+	Status      Status
+}
+
+type Station struct {
+	ID     pgtype.UUID
+	Slug   string
+	Status Status
+}
+
+type Subscription struct {
+	ID          pgtype.UUID
+	UserID      pgtype.UUID
+	StationID   pgtype.UUID
+	SatelliteID pgtype.UUID
+	CreatedAt   pgtype.Timestamp
+	UpdatedAt   pgtype.Timestamp
+}
+
+type User struct {
+	ID    pgtype.UUID
+	Login string
+}

internal/repository/sqlc/queries.sql.go

@@ -0,0 +1,25 @@
+// Code generated by sqlc. DO NOT EDIT.
+// versions:
+//   sqlc v1.28.0
+// source: queries.sql
+
+package sqlc
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgtype"
+)
+
+const getStationByID = `-- name: GetStationByID :one
+select id, slug, status
+from stations
+where id = $1
+`
+
+func (q *Queries) GetStationByID(ctx context.Context, id pgtype.UUID) (Station, error) {
+	row := q.db.QueryRow(ctx, getStationByID, id)
+	var i Station
+	err := row.Scan(&i.ID, &i.Slug, &i.Status)
+	return i, err
+}