package bell_rule_alert_test

import (
	"errors"
	"testing"

	"go-admin/app/bell/rule"
)

func TestRuleNormalizeTrimsAndNormalizesFields(t *testing.T) {
	eventType := " danger_area_entered "
	location := " 东门 "
	got, err := rule.Normalize(rule.WriteInput{
		Code: " AREA_HIGH ", Name: " 高风险区域 ", EventType: &eventType,
		MinimumSeverity: " HIGH ", LocationContains: &location,
	}, true)
	if err != nil {
		t.Fatal(err)
	}
	if got.Code != "area_high" || got.Name != "高风险区域" || got.MinimumSeverity != "high" {
		t.Fatalf("unexpected normalized rule: %#v", got)
	}
	if got.EventType == nil || *got.EventType != "danger_area_entered" || got.LocationContains == nil || *got.LocationContains != "东门" {
		t.Fatalf("optional fields were not normalized: %#v", got)
	}
}

func TestRuleNormalizeRejectsInvalidInput(t *testing.T) {
	tests := []struct {
		name  string
		input rule.WriteInput
	}{
		{name: "invalid code", input: rule.WriteInput{Code: "Bad Code", Name: "规则", MinimumSeverity: "low"}},
		{name: "missing name", input: rule.WriteInput{Code: "valid-code", Name: " ", MinimumSeverity: "low"}},
		{name: "unknown severity", input: rule.WriteInput{Code: "valid-code", Name: "规则", MinimumSeverity: "urgent"}},
		{name: "control character", input: rule.WriteInput{Code: "valid-code", Name: "规则\n泄露", MinimumSeverity: "low"}},
	}
	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			if _, err := rule.Normalize(test.input, true); !errors.Is(err, rule.ErrInvalid) {
				t.Fatalf("expected ErrInvalid, got %v", err)
			}
		})
	}
}

func TestRuleUpdateKeepsImmutableCodeOutsideInput(t *testing.T) {
	got, err := rule.Normalize(rule.WriteInput{Code: "ignored invalid code", Name: "更新后规则", MinimumSeverity: "medium"}, false)
	if err != nil {
		t.Fatal(err)
	}
	if got.Name != "更新后规则" || got.MinimumSeverity != "medium" {
		t.Fatalf("unexpected update normalization: %#v", got)
	}
}