package httpapi

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"os"
	"strings"
	"testing"
	"time"

	"data-terminal-cloud/internal/audit"
	"data-terminal-cloud/internal/concurrency"
	"data-terminal-cloud/internal/identity"
	"data-terminal-cloud/internal/opsconfig"

	"github.com/google/uuid"
	"github.com/jackc/pgx/v5/pgxpool"
)

func TestOpsGateHandlersResourceReferencesAndDeviceGroups(t *testing.T) {
	databaseURL := os.Getenv("TEST_DATABASE_URL")
	if databaseURL == "" {
		t.Skip("TEST_DATABASE_URL is not set")
	}
	ctx := context.Background()
	pool, err := pgxpool.New(ctx, databaseURL)
	if err != nil {
		t.Fatal(err)
	}
	defer pool.Close()
	service, err := opsconfig.NewService(pool, audit.NewRepository())
	if err != nil {
		t.Fatal(err)
	}
	admin := identity.Principal{Issuer: "http://localhost:58180/realms/voice-local", Subject: "00000000-0000-0000-0000-000000000104"}
	tenantID := "10000000-0000-0000-0000-000000000010"
	deviceID := "10000000-0000-0000-0000-000000000511"
	resourceKey := "http-ops-gates-resource-" + uuid.NewString()
	groupKey := "http-ops-gates-group-" + uuid.NewString()
	deniedGroupKey := "http-ops-gates-denied-" + uuid.NewString()
	referenceName := "vault://certificates/http-gate-" + uuid.NewString()
	groupName := "HTTP灰度设备组-" + uuid.NewString()
	requestPrefix := "http-ops-gates-"
	defer func() {
		_, _ = pool.Exec(ctx, `DELETE FROM audit_event WHERE request_id LIKE $1`, requestPrefix+"%")
		_, _ = pool.Exec(ctx, `DELETE FROM idempotency_record WHERE idempotency_key=ANY($1::text[])`, []string{resourceKey, groupKey, deniedGroupKey})
		_, _ = pool.Exec(ctx, `DELETE FROM ops_device_group_member WHERE group_id IN (SELECT id FROM ops_device_group WHERE name=$1)`, groupName)
		_, _ = pool.Exec(ctx, `DELETE FROM ops_device_group WHERE name=$1`, groupName)
		_, _ = pool.Exec(ctx, `DELETE FROM ops_resource_reference WHERE reference_name=$1`, referenceName)
	}()
	setHeaders := func(request *http.Request, key string) {
		request.Header.Set("X-Tenant-Id", tenantID)
		if key != "" {
			request.Header.Set("Idempotency-Key", key)
		}
	}
	withRequestID := func(request *http.Request, id string) *http.Request {
		return request.WithContext(context.WithValue(request.Context(), requestIDKey, id))
	}

	invalidTenantRequest := authenticatedRequest(http.MethodGet, "/api/v1/ops/resource-references", "", admin)
	invalidTenantRecorder := httptest.NewRecorder()
	ListOpsResourceReferencesHandler(service).ServeHTTP(invalidTenantRecorder, invalidTenantRequest)
	if invalidTenantRecorder.Code != http.StatusBadRequest || !strings.Contains(invalidTenantRecorder.Body.String(), "VALIDATION_FAILED") {
		t.Fatalf("invalid tenant status=%d body=%s", invalidTenantRecorder.Code, invalidTenantRecorder.Body.String())
	}

	verifiedAt := time.Now().UTC().Add(-time.Hour)
	expiresAt := time.Now().UTC().Add(30 * 24 * time.Hour)
	resourceBody, _ := json.Marshal(map[string]any{
		"resource_type": "CERTIFICATE", "reference_name": referenceName, "display_name": "HTTP集成受控证书",
		"verified_at": verifiedAt, "expires_at": expiresAt,
	})
	request := withRequestID(authenticatedRequest(http.MethodPost, "/api/v1/ops/resource-references", string(resourceBody), admin), requestPrefix+"resource-create")
	setHeaders(request, resourceKey)
	recorder := httptest.NewRecorder()
	CreateOpsResourceReferenceHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusCreated || recorder.Header().Get("Cache-Control") != "no-store" {
		t.Fatalf("create resource status=%d headers=%v body=%s", recorder.Code, recorder.Header(), recorder.Body.String())
	}
	var resourceResponse struct {
		Data opsconfig.ResourceReference `json:"data"`
	}
	if err := json.Unmarshal(recorder.Body.Bytes(), &resourceResponse); err != nil {
		t.Fatal(err)
	}
	resource := resourceResponse.Data
	if resource.Status != "ACTIVE" || resource.RowVersion != 1 || resource.ReferenceName != referenceName {
		t.Fatalf("resource=%+v", resource)
	}

	request = withRequestID(authenticatedRequest(http.MethodPost, "/api/v1/ops/resource-references", string(resourceBody), admin), requestPrefix+"resource-replay")
	setHeaders(request, resourceKey)
	recorder = httptest.NewRecorder()
	CreateOpsResourceReferenceHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusOK || recorder.Header().Get("Idempotency-Replayed") != "true" || !strings.Contains(recorder.Body.String(), resource.ID) {
		t.Fatalf("resource replay status=%d body=%s", recorder.Code, recorder.Body.String())
	}

	request = authenticatedRequest(http.MethodGet, "/api/v1/ops/resource-references", "", admin)
	setHeaders(request, "")
	recorder = httptest.NewRecorder()
	ListOpsResourceReferencesHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusOK || !strings.Contains(recorder.Body.String(), referenceName) {
		t.Fatalf("list resources status=%d body=%s", recorder.Code, recorder.Body.String())
	}

	request = withRequestID(authenticatedRequest(http.MethodPatch, "/api/v1/ops/resource-references/"+resource.ID+"/revoke", `{"reason":"轮换后撤销旧证书"}`, admin), requestPrefix+"resource-revoke-missing-etag")
	request.SetPathValue("id", resource.ID)
	setHeaders(request, "")
	recorder = httptest.NewRecorder()
	RevokeOpsResourceReferenceHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusPreconditionRequired {
		t.Fatalf("missing resource ETag status=%d body=%s", recorder.Code, recorder.Body.String())
	}
	request.Header.Set("If-Match", concurrency.FormatETag(1))
	recorder = httptest.NewRecorder()
	RevokeOpsResourceReferenceHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusOK || recorder.Header().Get("ETag") != concurrency.FormatETag(2) || !strings.Contains(recorder.Body.String(), `"status":"REVOKED"`) {
		t.Fatalf("revoke resource status=%d headers=%v body=%s", recorder.Code, recorder.Header(), recorder.Body.String())
	}
	request = withRequestID(authenticatedRequest(http.MethodPatch, "/api/v1/ops/resource-references/"+resource.ID+"/revoke", `{"reason":"重复撤销应拒绝"}`, admin), requestPrefix+"resource-revoke-repeat")
	request.SetPathValue("id", resource.ID)
	setHeaders(request, "")
	request.Header.Set("If-Match", concurrency.FormatETag(2))
	recorder = httptest.NewRecorder()
	RevokeOpsResourceReferenceHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusConflict || !strings.Contains(recorder.Body.String(), "CONFIG_STATE_CONFLICT") {
		t.Fatalf("repeat revoke status=%d body=%s", recorder.Code, recorder.Body.String())
	}

	groupBody, _ := json.Marshal(map[string]any{"name": groupName, "selector": map[string]any{"purpose": "http-integration"}, "device_ids": []string{deviceID}})
	request = withRequestID(authenticatedRequest(http.MethodPost, "/api/v1/ops/device-groups", string(groupBody), admin), requestPrefix+"group-create")
	setHeaders(request, groupKey)
	recorder = httptest.NewRecorder()
	CreateOpsDeviceGroupHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusCreated || recorder.Header().Get("Cache-Control") != "no-store" || !strings.Contains(recorder.Body.String(), deviceID) {
		t.Fatalf("create group status=%d body=%s", recorder.Code, recorder.Body.String())
	}
	request = withRequestID(authenticatedRequest(http.MethodPost, "/api/v1/ops/device-groups", string(groupBody), admin), requestPrefix+"group-replay")
	setHeaders(request, groupKey)
	recorder = httptest.NewRecorder()
	CreateOpsDeviceGroupHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusOK || recorder.Header().Get("Idempotency-Replayed") != "true" {
		t.Fatalf("group replay status=%d body=%s", recorder.Code, recorder.Body.String())
	}
	request = authenticatedRequest(http.MethodGet, "/api/v1/ops/device-groups", "", admin)
	setHeaders(request, "")
	recorder = httptest.NewRecorder()
	ListOpsDeviceGroupsHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusOK || !strings.Contains(recorder.Body.String(), groupName) {
		t.Fatalf("list groups status=%d body=%s", recorder.Code, recorder.Body.String())
	}

	deniedBody, _ := json.Marshal(map[string]any{"name": groupName + "-denied", "selector": map[string]any{}, "device_ids": []string{uuid.NewString()}})
	request = withRequestID(authenticatedRequest(http.MethodPost, "/api/v1/ops/device-groups", string(deniedBody), admin), requestPrefix+"group-denied")
	setHeaders(request, deniedGroupKey)
	recorder = httptest.NewRecorder()
	CreateOpsDeviceGroupHandler(service).ServeHTTP(recorder, request)
	if recorder.Code != http.StatusForbidden || !strings.Contains(recorder.Body.String(), "OPS_ACCESS_DENIED") {
		t.Fatalf("unknown device group status=%d body=%s", recorder.Code, recorder.Body.String())
	}
}