feat(bell): add alert acknowledgement vertical slice

Bell/cmd/bell-api/main_test.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"os"
 	"path/filepath"
 	"testing"
 )
@@ -18,6 +19,49 @@ func TestConfigurationRequiresDatabaseAndExternalKey(t *testing.T) {
 	}
 }
 
+func TestAlertsAreDisabledByDefaultAndConsoleRequiresLoopbackContext(t *testing.T) {
+	t.Setenv("BELL_DB_DSN", "postgres://bell@127.0.0.1/yovision")
+	t.Setenv("BELL_AUDIT_KEYS_FILE", filepath.Join(t.TempDir(), "audit.json"))
+	value, err := loadConfiguration()
+	if err != nil || value.alertsEnabled || value.alertConsoleEnabled {
+		t.Fatalf("default alert configuration: %+v %v", value, err)
+	}
+	t.Setenv("BELL_ALERTS_ENABLED", "true")
+	if _, err := loadConfiguration(); err == nil {
+		t.Fatal("alerts without an external rule file were accepted")
+	}
+	t.Setenv("BELL_ALERT_RULES_FILE", filepath.Join(t.TempDir(), "rules.json"))
+	t.Setenv("BELL_ALERT_CONSOLE_ENABLED", "true")
+	if _, err := loadConfiguration(); err == nil {
+		t.Fatal("console without external context was accepted")
+	}
+	t.Setenv("BELL_ALERT_CONSOLE_TOKEN_FILE", filepath.Join(t.TempDir(), "token"))
+	t.Setenv("BELL_ALERT_CONSOLE_TENANT_ID", "1")
+	t.Setenv("BELL_ALERT_CONSOLE_SITE_ID", "2")
+	t.Setenv("BELL_ALERT_CONSOLE_ACTOR_REF", "operator:local")
+	t.Setenv("BELL_HTTP_ADDR", "127.0.0.1:8081")
+	value, err = loadConfiguration()
+	if err != nil || !value.alertsEnabled || !value.alertConsoleEnabled {
+		t.Fatalf("valid alert console configuration: %+v %v", value, err)
+	}
+}
+
+func TestLoadConsoleToken(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "token")
+	if err := os.WriteFile(path, []byte("12345678901234567890123456789012\n"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if value, err := loadConsoleToken(path); err != nil || len(value) != 32 {
+		t.Fatalf("valid token: %q %v", value, err)
+	}
+	if err := os.WriteFile(path, []byte("short"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := loadConsoleToken(path); err == nil {
+		t.Fatal("short token was accepted")
+	}
+}
+
 func TestConfigurationRequiresTLSOutsideLoopback(t *testing.T) {
 	t.Setenv("BELL_DB_DSN", "postgres://bell@127.0.0.1/yovision")
 	t.Setenv("BELL_AUDIT_KEYS_FILE", filepath.Join(t.TempDir(), "keys.json"))