Separate graphql API from rest of the system (#2503)

* Move graphql generated files to api
* Refactor identify options
* Remove models.StashBoxes
* Move ScraperSource to scraper package
* Rename field strategy enums
* Rename identify.TaskOptions to Options

pkg/models/import.go

@@ -0,0 +1,50 @@
+package models
+
+import (
+	"fmt"
+	"io"
+	"strconv"
+)
+
+type ImportMissingRefEnum string
+
+const (
+	ImportMissingRefEnumIgnore ImportMissingRefEnum = "IGNORE"
+	ImportMissingRefEnumFail   ImportMissingRefEnum = "FAIL"
+	ImportMissingRefEnumCreate ImportMissingRefEnum = "CREATE"
+)
+
+var AllImportMissingRefEnum = []ImportMissingRefEnum{
+	ImportMissingRefEnumIgnore,
+	ImportMissingRefEnumFail,
+	ImportMissingRefEnumCreate,
+}
+
+func (e ImportMissingRefEnum) IsValid() bool {
+	switch e {
+	case ImportMissingRefEnumIgnore, ImportMissingRefEnumFail, ImportMissingRefEnumCreate:
+		return true
+	}
+	return false
+}
+
+func (e ImportMissingRefEnum) String() string {
+	return string(e)
+}
+
+func (e *ImportMissingRefEnum) UnmarshalGQL(v interface{}) error {
+	str, ok := v.(string)
+	if !ok {
+		return fmt.Errorf("enums must be strings")
+	}
+
+	*e = ImportMissingRefEnum(str)
+	if !e.IsValid() {
+		return fmt.Errorf("%s is not a valid ImportMissingRefEnum", str)
+	}
+	return nil
+}
+
+func (e ImportMissingRefEnum) MarshalGQL(w io.Writer) {
+	fmt.Fprint(w, strconv.Quote(e.String()))
+}