package oci

import (
	"regexp"
	"strings"
	"testing"
)

func TestRelayResourceNames_Deterministic(t *testing.T) {
	tenancy := "ocid1.tenancy.oc1..aaaaexampletenant"
	a := relayResourceNames(tenancy)
	b := relayResourceNames(tenancy)
	if a != b {
		t.Fatalf("同 tenancy 派生不一致: %+v vs %+v", a, b)
	}
}

func TestRelayResourceNames_DistinctTenancies(t *testing.T) {
	cases := []string{
		"ocid1.tenancy.oc1..aaaaaaaaaa",
		"ocid1.tenancy.oc1..bbbbbbbbbb",
		"ocid1.tenancy.oc1..cccccccccc",
	}
	seen := map[string]string{}
	for _, tenancy := range cases {
		n := relayResourceNames(tenancy)
		if got, ok := seen[n.TopicPrefix]; ok {
			t.Fatalf("前缀冲突: %s 与 %s 同为 %s", tenancy, got, n.TopicPrefix)
		}
		seen[n.TopicPrefix] = tenancy
		assertNoBrandLeak(t, tenancy, n)
	}
}

// assertNoBrandLeak 断言派生结果不含品牌明文,以及格式符合预期。
func assertNoBrandLeak(t *testing.T, tenancy string, n relayNames) {
	t.Helper()
	banned := []string{"oci-portal", "ociportal", "logs", "portal"}
	fields := []struct {
		name  string
		value string
	}{
		{"TopicPrefix", n.TopicPrefix},
		{"PolicyName", n.PolicyName},
		{"ConnectorName", n.ConnectorName},
	}
	for _, f := range fields {
		lower := strings.ToLower(f.value)
		for _, b := range banned {
			if strings.Contains(lower, b) {
				t.Errorf("tenancy %s: %s=%q 含品牌明文 %q", tenancy, f.name, f.value, b)
			}
		}
		if !regexp.MustCompile(`^[0-9a-f]{8}-audit(-p)?$`).MatchString(f.value) {
			t.Errorf("tenancy %s: %s=%q 不符合 <8hex>-audit(-p)? 格式", tenancy, f.name, f.value)
		}
	}
}

func TestRelayTopicNewName_Suffix(t *testing.T) {
	tests := []struct {
		name   string
		prefix string
	}{
		{name: "标准前缀", prefix: "c3f2a1b0-audit"},
		{name: "legacy 前缀兼容", prefix: legacyRelayTopicPrefix},
	}
	pat := regexp.MustCompile(`^[0-9a-f]{8}$`)
	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, err := relayTopicNewName(tt.prefix)
			if err != nil {
				t.Fatalf("生成失败: %v", err)
			}
			if !strings.HasPrefix(got, tt.prefix+"-") {
				t.Errorf("前缀不符: got=%q, prefix=%q", got, tt.prefix)
			}
			suffix := strings.TrimPrefix(got, tt.prefix+"-")
			if !pat.MatchString(suffix) {
				t.Errorf("后缀非 8 hex: got=%q, suffix=%q", got, suffix)
			}
		})
	}
}

func TestLegacyPrefixes_Unchanged(t *testing.T) {
	cases := []struct {
		name string
		got  string
		want string
	}{
		{name: "Topic legacy", got: legacyRelayTopicPrefix, want: "ociportal-logs"},
		{name: "Policy legacy", got: legacyRelayPolicyName, want: "ociportal-logs-sch"},
		{name: "Connector legacy", got: legacyRelayConnectorName, want: "ociportal-logs"},
	}
	for _, tt := range cases {
		t.Run(tt.name, func(t *testing.T) {
			if tt.got != tt.want {
				t.Errorf("legacy 常量被误改: got=%q, want=%q", tt.got, tt.want)
			}
		})
	}
}

func TestRelayDescriptions_Neutral(t *testing.T) {
	banned := []string{"oci-portal", "ociportal", "日志回传", "面板"}
	for _, desc := range []string{relayTopicDescNew, relayPolicyDescNew} {
		lower := strings.ToLower(desc)
		for _, b := range banned {
			if strings.Contains(lower, strings.ToLower(b)) {
				t.Errorf("描述含品牌明文 %q: %q", b, desc)
			}
		}
	}
}