Package start

1 files changed, 42 insertions, 0 deletions

diff --git a/engine/Components/Packages/Package.go b/engine/Components/Packages/Package.go
new file mode 100644
index 0000000..51e2a80
--- /dev/null
+++ b/engine/Components/Packages/Package.go
@@ -0,0 +1,42 @@
+package packages
+
+import (
+	"fmt"
+	"os"
+
+	settings "github.com/DegustatorPonos/RuinesOfRafdolon/Settings"
+)
+
+type PackageDescription struct {
+	Name string `json:"name"`
+	Version uint64 `json:"version"`
+	Type string `json:"type"`
+}
+
+type Package struct {
+	Description PackageDescription `json:"description"`
+}
+
+func ReadPackage(dir os.DirEntry) (*Package, error) {
+	var dirPath = ConcantinateFileLocation(settings.Current.PackagesLocation, dir.Name())
+	var desc = PackageDescription{}
+	if descErr := ReadJSONfromFile(ConcantinateFileLocation(dirPath, "Description.json"), &desc); descErr != nil {
+		return nil, descErr
+	}
+	if descErr := desc.Validate(); descErr != nil {
+		return nil, fmt.Errorf("Failed to parse descriptor: %s", descErr.Error())
+	}
+	return &Package{
+		Description: desc,
+	}, nil
+}
+
+func (base *PackageDescription) Validate() error {
+	if base.Name == "" {
+		return fmt.Errorf("Invalid package descriptor: the name cannot be empty")
+	}
+	if base.Version == 0{
+		return fmt.Errorf("Invalid package descriptor: the version cannot be 0")
+	}
+	return nil
+}