feat: initial Netts energy orchestrator

internal/config/config_test.go

@@ -0,0 +1,53 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestLoadDefaultsWithEnv(t *testing.T) {
+	t.Setenv("NETTS_API_KEY", "env-key")
+
+	cfg, err := Load("")
+	require.NoError(t, err)
+
+	assert.Equal(t, ":8080", cfg.Server.Address)
+	assert.Equal(t, "https://netts.io", cfg.Netts.BaseURL)
+	assert.Equal(t, 3, cfg.Energy.MinCycles)
+	assert.Equal(t, 10, cfg.Energy.TargetCycles)
+	assert.Equal(t, "env-key", cfg.Netts.APIKey)
+}
+
+func TestLoadFromFileOverridesDefaults(t *testing.T) {
+	dir := t.TempDir()
+	file := filepath.Join(dir, "config.yaml")
+
+	body := `
+server:
+  address: ":9090"
+  readTimeout: 5s
+netts:
+  apiKey: "file-key"
+  baseUrl: "https://example.com"
+energy:
+  minCycles: 5
+  targetCycles: 8
+logging:
+  level: debug
+`
+	require.NoError(t, os.WriteFile(file, []byte(body), 0o600))
+
+	cfg, err := Load(file)
+	require.NoError(t, err)
+
+	assert.Equal(t, ":9090", cfg.Server.Address)
+	assert.Equal(t, "https://example.com", cfg.Netts.BaseURL)
+	assert.Equal(t, 5, cfg.Energy.MinCycles)
+	assert.Equal(t, 8, cfg.Energy.TargetCycles)
+	assert.Equal(t, "file-key", cfg.Netts.APIKey)
+	assert.Equal(t, "debug", cfg.Logging.Level)
+}