Restructure data layer (#2532)

* Add new txn manager interface
* Add txn management to sqlite
* Rename get to getByID
* Add contexts to repository methods
* Update query builders
* Add context to reader writer interfaces
* Use repository in resolver
* Tighten interfaces
* Tighten interfaces in dlna
* Tighten interfaces in match package
* Tighten interfaces in scraper package
* Tighten interfaces in scan code
* Tighten interfaces on autotag package
* Remove ReaderWriter usage
* Merge database package into sqlite

pkg/sqlite/tx.go

@@ -0,0 +1,55 @@
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+
+	"github.com/jmoiron/sqlx"
+)
+
+type dbi struct{}
+
+func (*dbi) Get(ctx context.Context, dest interface{}, query string, args ...interface{}) error {
+	tx, err := getTx(ctx)
+	if err != nil {
+		return err
+	}
+
+	return tx.Get(dest, query, args...)
+}
+
+func (*dbi) Select(ctx context.Context, dest interface{}, query string, args ...interface{}) error {
+	tx, err := getTx(ctx)
+	if err != nil {
+		return err
+	}
+
+	return tx.Select(dest, query, args...)
+}
+
+func (*dbi) Queryx(ctx context.Context, query string, args ...interface{}) (*sqlx.Rows, error) {
+	tx, err := getTx(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return tx.Queryx(query, args...)
+}
+
+func (*dbi) NamedExec(ctx context.Context, query string, arg interface{}) (sql.Result, error) {
+	tx, err := getTx(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return tx.NamedExec(query, arg)
+}
+
+func (*dbi) Exec(ctx context.Context, query string, args ...interface{}) (sql.Result, error) {
+	tx, err := getTx(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	return tx.Exec(query, args...)
+}