feat: runtime config, Matomo analytics, chat accounts, DM history/search, and Prometheus retention

backend/chat/src/config/runtime_test.go

@@ -0,0 +1,181 @@
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func resetRuntime(t *testing.T) {
+	t.Helper()
+	runtimeMu.Lock()
+	runtimeStore = map[string]string{}
+	runtimeMu.Unlock()
+	os.Unsetenv("CONFIG_PATH")
+	os.Unsetenv("MATOMO_URL")
+	os.Unsetenv("MATOMO_SITE_ID")
+	os.Unsetenv("HLS_SEGMENT_DURATION")
+	os.Unsetenv("HLS_WINDOW_SIZE")
+}
+
+func TestConfigPath(t *testing.T) {
+	resetRuntime(t)
+	if got := ConfigPath(); got != "/app/playlist/config.json" {
+		t.Errorf("ConfigPath() = %q, want default /app/playlist/config.json", got)
+	}
+
+	os.Setenv("CONFIG_PATH", "/tmp/custom.json")
+	defer os.Unsetenv("CONFIG_PATH")
+	if got := ConfigPath(); got != "/tmp/custom.json" {
+		t.Errorf("ConfigPath() = %q, want /tmp/custom.json", got)
+	}
+}
+
+func TestGetSetRuntime(t *testing.T) {
+	resetRuntime(t)
+	if _, ok := GetRuntime("foo"); ok {
+		t.Errorf("expected missing key")
+	}
+	SetRuntime("foo", "bar")
+	v, ok := GetRuntime("foo")
+	if !ok || v != "bar" {
+		t.Errorf("GetRuntime() = %q, %v; want bar, true", v, ok)
+	}
+}
+
+func TestGettersDefaults(t *testing.T) {
+	resetRuntime(t)
+	if got := MatomoURL(); got != "" {
+		t.Errorf("MatomoURL() = %q, want empty", got)
+	}
+	if got := MatomoSiteID(); got != "" {
+		t.Errorf("MatomoSiteID() = %q, want empty", got)
+	}
+	if got := HLSSegmentDuration(); got != 6 {
+		t.Errorf("HLSSegmentDuration() = %d, want 6", got)
+	}
+	if got := HLSWindowSize(); got != 24 {
+		t.Errorf("HLSWindowSize() = %d, want 24", got)
+	}
+}
+
+func TestGettersEnvFallback(t *testing.T) {
+	resetRuntime(t)
+	os.Setenv("HLS_SEGMENT_DURATION", "4")
+	os.Setenv("HLS_WINDOW_SIZE", "12")
+	os.Setenv("MATOMO_URL", "https://analytics.example.com")
+	os.Setenv("MATOMO_SITE_ID", "7")
+
+	if got := HLSSegmentDuration(); got != 4 {
+		t.Errorf("HLSSegmentDuration() = %d, want 4", got)
+	}
+	if got := HLSWindowSize(); got != 12 {
+		t.Errorf("HLSWindowSize() = %d, want 12", got)
+	}
+	if got := MatomoURL(); got != "https://analytics.example.com" {
+		t.Errorf("MatomoURL() = %q", got)
+	}
+	if got := MatomoSiteID(); got != "7" {
+		t.Errorf("MatomoSiteID() = %q", got)
+	}
+}
+
+func TestLoadRuntimeConfigSeedsFromEnv(t *testing.T) {
+	resetRuntime(t)
+	dir := t.TempDir()
+	os.Setenv("CONFIG_PATH", filepath.Join(dir, "config.json"))
+	os.Setenv("HLS_SEGMENT_DURATION", "8")
+
+	if err := LoadRuntimeConfig(); err != nil {
+		t.Fatalf("LoadRuntimeConfig error: %v", err)
+	}
+	if got := HLSSegmentDuration(); got != 8 {
+		t.Errorf("HLSSegmentDuration() = %d, want 8 (seeded from env)", got)
+	}
+}
+
+func TestSaveAndLoadRuntimeConfig(t *testing.T) {
+	resetRuntime(t)
+	dir := t.TempDir()
+	os.Setenv("CONFIG_PATH", filepath.Join(dir, "config.json"))
+
+	if err := SetHLSSegmentDuration(5); err != nil {
+		t.Fatal(err)
+	}
+	if err := SetHLSWindowSize(30); err != nil {
+		t.Fatal(err)
+	}
+	if err := SetMatomoURL("https://stats.example.com"); err != nil {
+		t.Fatal(err)
+	}
+	if err := SetMatomoSiteID("42"); err != nil {
+		t.Fatal(err)
+	}
+
+	if err := SaveRuntimeConfig(); err != nil {
+		t.Fatalf("SaveRuntimeConfig error: %v", err)
+	}
+
+	// Reset the store and reload from disk.
+	runtimeMu.Lock()
+	runtimeStore = map[string]string{}
+	runtimeMu.Unlock()
+
+	if err := LoadRuntimeConfig(); err != nil {
+		t.Fatalf("LoadRuntimeConfig error: %v", err)
+	}
+
+	if got := HLSSegmentDuration(); got != 5 {
+		t.Errorf("HLSSegmentDuration() = %d, want 5", got)
+	}
+	if got := HLSWindowSize(); got != 30 {
+		t.Errorf("HLSWindowSize() = %d, want 30", got)
+	}
+	if got := MatomoURL(); got != "https://stats.example.com" {
+		t.Errorf("MatomoURL() = %q", got)
+	}
+	if got := MatomoSiteID(); got != "42" {
+		t.Errorf("MatomoSiteID() = %q", got)
+	}
+}
+
+func TestSettersValidation(t *testing.T) {
+	resetRuntime(t)
+
+	if err := SetHLSSegmentDuration(1); err == nil {
+		t.Error("expected error for duration 1")
+	}
+	if err := SetHLSSegmentDuration(20); err == nil {
+		t.Error("expected error for duration 20")
+	}
+	if err := SetHLSSegmentDuration(6); err != nil {
+		t.Errorf("unexpected error for duration 6: %v", err)
+	}
+
+	if err := SetHLSWindowSize(2); err == nil {
+		t.Error("expected error for window 2")
+	}
+	if err := SetHLSWindowSize(101); err == nil {
+		t.Error("expected error for window 101")
+	}
+	if err := SetHLSWindowSize(24); err != nil {
+		t.Errorf("unexpected error for window 24: %v", err)
+	}
+
+	if err := SetMatomoURL("not-a-url"); err == nil {
+		t.Error("expected error for invalid URL")
+	}
+	if err := SetMatomoURL("ftp://example.com"); err == nil {
+		t.Error("expected error for non-http URL")
+	}
+	if err := SetMatomoURL("https://stats.example.com"); err != nil {
+		t.Errorf("unexpected error for valid URL: %v", err)
+	}
+
+	if err := SetMatomoSiteID("abc"); err == nil {
+		t.Error("expected error for non-numeric site ID")
+	}
+	if err := SetMatomoSiteID("99"); err != nil {
+		t.Errorf("unexpected error for numeric site ID: %v", err)
+	}
+}