add new bot code

models/models.go

@@ -0,0 +1,47 @@
+package models
+
+import (
+	"dorisbot/pkg/config"
+	"errors"
+	"fmt"
+
+	"github.com/jmoiron/sqlx"
+	_ "github.com/lib/pq"
+)
+
+// Errors
+var (
+	ErrDBNotInit = errors.New("database not init")
+)
+
+var x *sqlx.DB
+
+// NewDB -
+func NewDB(conf *config.Database) (*sqlx.DB, error) {
+	var err error
+	connStr := fmt.Sprintf("dbname=%s user=%s password=%s host=%s port=%d sslmode=%s sslrootcert=%s sslcert=%s sslkey=%s",
+		conf.DBName,
+		conf.User,
+		conf.Pass,
+		conf.Host,
+		conf.Port,
+		conf.SSLMode,
+		conf.SSLCa,
+		conf.SSLCrt,
+		conf.SSLKey,
+	)
+
+	x, err = sqlx.Connect("postgres", connStr)
+	if err != nil {
+		return nil, err
+	}
+	return x, nil
+}
+
+// Ping database connection
+func Ping() error {
+	if x == nil {
+		return ErrDBNotInit
+	}
+	return x.Ping()
+}