1 files changed, 56 insertions, 0 deletions
diff --git a/internal/config/config.go b/internal/config/config.go
new file mode 100644
index 0000000..ad35ee7
--- /dev/null
+++ b/internal/config/config.go
@@ -0,0 +1,56 @@
+package config
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"gopkg.in/yaml.v3"
+)
+
+type Config struct {
+	Filters    []string `yaml:"filters"`
+	Iterations int      `yaml:"iterations"`
+}
+
+func getDefaultConfigPath() (defaultPath string, err error) {
+	programName := "uptfs"
+	configFileName := "config.yaml"
+
+	if xdg := os.Getenv("XDG_CONFIG_HOME"); xdg != "" {
+		return filepath.Join(xdg, programName, configFileName), nil
+	}
+
+	if home := os.Getenv("HOME"); home != "" {
+		return filepath.Join(home, programName, configFileName), nil
+	}
+
+	return "", errors.New("both XDG_CONFIG_HOME and HOME are not set, can't proceed")
+}
+
+func (c *Config) LoadConfig(filepath string) *Config {
+	if filepath == "" {
+		var err error
+		filepath, err = getDefaultConfigPath()
+
+		if err != nil {
+			fmt.Printf("%v\n", err)
+			os.Exit(1)
+		}
+	}
+
+	yamlFile, err := os.ReadFile(filepath)
+
+	if err != nil {
+		fmt.Printf("%v\n", err)
+		os.Exit(1)
+	}
+	err = yaml.Unmarshal(yamlFile, c)
+	if err != nil {
+		fmt.Printf("%v\n", err)
+		os.Exit(1)
+	}
+
+	return c
+}