Initial quick and dirty code, TODO: pushover actions, crontab, and cleanliness

config/config.go

@@ -0,0 +1,7 @@
+package config
+
+// Config for application setup
+type Config interface {
+	BadgerPath() (string, error)
+	PushoverAPIToken() (string, error)
+}

config/env.go

@@ -0,0 +1,51 @@
+package config
+
+import (
+	"errors"
+	"fmt"
+	"os"
+)
+
+const (
+	// BadgerPathEnv name
+	BadgerPathEnv = "BADGER_PATH"
+	// PushoverAPITokenEnv name
+	PushoverAPITokenEnv = "PUSHOVER_API_TOKEN"
+)
+
+var (
+	// ErrEnvVariableNotSet occurs when an environment variable is not set
+	ErrEnvVariableNotSet = errors.New("environment variable is not set")
+)
+
+// Env variable Config implementation
+type Env struct {
+}
+
+// BadgerPath for the database directory
+func (e *Env) BadgerPath() (string, error) {
+	val, ok := os.LookupEnv(BadgerPathEnv)
+	if !ok {
+		return "", fmt.Errorf(
+			"unable to get badger path from env variable %s: %w",
+			BadgerPathEnv,
+			ErrEnvVariableNotSet,
+		)
+	}
+
+	return val, nil
+}
+
+// PushoverAPIToken getter
+func (e *Env) PushoverAPIToken() (string, error) {
+	val, ok := os.LookupEnv(PushoverAPITokenEnv)
+	if !ok {
+		return "", fmt.Errorf(
+			"unable to get pushover API token from env variable %s: %w",
+			PushoverAPITokenEnv,
+			ErrEnvVariableNotSet,
+		)
+	}
+
+	return val, nil
+}