MindSift/internal/api/server_test.go

package api

import (
	"bytes"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"path/filepath"
	"strings"
	"sync"
	"testing"

	"github.com/sandrodach/mindsift/internal/auth"
	"github.com/sandrodach/mindsift/internal/config"
	"github.com/sandrodach/mindsift/internal/domain"
	"github.com/sandrodach/mindsift/internal/storage"
	"github.com/sandrodach/mindsift/internal/ws"
)

func setupTestServer(t *testing.T) (*Server, *storage.Store, string) {
	t.Helper()
	dbPath := filepath.Join(t.TempDir(), "test_mindsift.db")
	store, err := storage.NewStore(dbPath)
	if err != nil {
		t.Fatalf("failed to create test store: %v", err)
	}
	t.Cleanup(func() {
		_ = store.Close()
	})

	user, err := store.EnsureDefaultUser()
	if err != nil {
		t.Fatalf("failed to ensure test user: %v", err)
	}
	_ = store.SeedStarterContent(user)

	cfg := &config.Config{
		Port:              "8080",
		DatabasePath:      dbPath,
		JWTSecret:         "test-jwt-secret-key",
		AllowRegistration: false,
	}
	hub := ws.NewHub()
	srv := NewServer(cfg, store, hub, nil)

	token, err := auth.GenerateToken(cfg.JWTSecret, user.ID, user.Email, user.DisplayName)
	if err != nil {
		t.Fatalf("failed to generate token: %v", err)
	}

	return srv, store, token
}

func TestFirstBootSetupAndInviteRegistrationAndNonNullSlices(t *testing.T) {
	dbPath := filepath.Join(t.TempDir(), "fresh_mindsift.db")
	store, err := storage.NewStore(dbPath)
	if err != nil {
		t.Fatalf("failed to create fresh store: %v", err)
	}
	defer store.Close()

	cfg := &config.Config{
		Port:              "8080",
		DatabasePath:      dbPath,
		JWTSecret:         "test-jwt-secret-key",
		AllowRegistration: false,
	}
	srv := NewServer(cfg, store, ws.NewHub(), nil)
	router := srv.Router()

	// 1. Fresh DB must report needsSetup = true
	req := httptest.NewRequest(http.MethodGet, "/api/v1/auth/status", nil)
	rec := httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK from /api/v1/auth/status, got %d", rec.Code)
	}
	var statusResp struct {
		NeedsSetup        bool   `json:"needsSetup"`
		AllowRegistration bool   `json:"allowRegistration"`
		InstanceName      string `json:"instanceName"`
	}
	_ = json.Unmarshal(rec.Body.Bytes(), &statusResp)
	if !statusResp.NeedsSetup {
		t.Fatalf("expected needsSetup=true on fresh database, got false")
	}

	// 2. Complete First-Boot Setup (without sample data)
	setupBody := []byte(`{
		"email": "owner@example.com",
		"password": "secretpassword",
		"displayName": "Server Owner",
		"instanceName": "My MindSift",
		"allowRegistration": false,
		"sharingMode": "teams_only",
		"seedSampleData": false
	}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/auth/setup", bytes.NewReader(setupBody))
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created from /api/v1/auth/setup, got %d: %s", rec.Code, rec.Body.String())
	}
	var setupRes struct {
		Token string      `json:"token"`
		User  domain.User `json:"user"`
	}
	_ = json.Unmarshal(rec.Body.Bytes(), &setupRes)
	if setupRes.User.Role != "admin" || setupRes.Token == "" {
		t.Fatalf("expected admin user and token, got %+v", setupRes)
	}

	// 3. Verify empty endpoints return [] and never null (preventing React crashes)
	arrayEndpoints := []string{
		"/api/v1/task-lists",
		"/api/v1/tasks",
		"/api/v1/organizations",
		"/api/v1/teams",
		"/api/v1/spaces",
		"/api/v1/lists",
	}
	for _, ep := range arrayEndpoints {
		req = httptest.NewRequest(http.MethodGet, ep, nil)
		req.Header.Set("Authorization", "Bearer "+setupRes.Token)
		rec = httptest.NewRecorder()
		router.ServeHTTP(rec, req)
		if rec.Code != http.StatusOK {
			t.Fatalf("GET %s returned %d", ep, rec.Code)
		}
		trimmed := strings.TrimSpace(rec.Body.String())
		if trimmed == "null" || !strings.HasPrefix(trimmed, "[") {
			t.Fatalf("GET %s returned %q instead of JSON array []", ep, trimmed)
		}
	}

	// 4. Public registration without invite must be rejected (403)
	regBody := []byte(`{"email":"member@example.com","password":"password123","displayName":"Member"}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/auth/register", bytes.NewReader(regBody))
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusForbidden {
		t.Fatalf("expected 403 Forbidden when registration is disabled, got %d", rec.Code)
	}

	// 5. Create an Invite as Admin and register with that Invite Code
	invBody := []byte(`{"role":"admin","validDays":7}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/admin/invites", bytes.NewReader(invBody))
	req.Header.Set("Authorization", "Bearer "+setupRes.Token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created for invite, got %d: %s", rec.Code, rec.Body.String())
	}
	var createdInvite domain.UserInvite
	_ = json.Unmarshal(rec.Body.Bytes(), &createdInvite)
	if createdInvite.Code == "" {
		t.Fatalf("expected invite code, got empty")
	}

	regWithInviteBody, _ := json.Marshal(map[string]string{
		"email":       "invited@example.com",
		"password":    "password123",
		"displayName": "Invited Admin",
		"inviteCode":  createdInvite.Code,
	})
	req = httptest.NewRequest(http.MethodPost, "/api/v1/auth/register", bytes.NewReader(regWithInviteBody))
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created when registering with valid invite code, got %d: %s", rec.Code, rec.Body.String())
	}
	var invitedRes struct {
		User domain.User `json:"user"`
	}
	_ = json.Unmarshal(rec.Body.Bytes(), &invitedRes)
	if invitedRes.User.Role != "admin" {
		t.Fatalf("expected invited user to receive role 'admin', got %q", invitedRes.User.Role)
	}
}

func TestConcurrentInitialLoadAndListsNoDeadlock(t *testing.T) {
	srv, _, token := setupTestServer(t)
	router := srv.Router()

	endpoints := []string{
		"/api/v1/auth/me",
		"/api/v1/triage/deck",
		"/api/v1/lists",
		"/api/v1/spaces",
		"/api/v1/tasks",
		"/api/v1/documents",
	}

	var wg sync.WaitGroup
	for i := 0; i < 3; i++ {
		for _, ep := range endpoints {
			wg.Add(1)
			go func(path string) {
				defer wg.Done()
				req := httptest.NewRequest(http.MethodGet, path, nil)
				req.Header.Set("Authorization", "Bearer "+token)
				rec := httptest.NewRecorder()
				router.ServeHTTP(rec, req)
				if rec.Code != http.StatusOK {
					t.Errorf("GET %s returned %d: %s", path, rec.Code, rec.Body.String())
				}
			}(ep)
		}
	}
	wg.Wait()
}

func TestQuickDumpToTriageAndDirectTargets(t *testing.T) {
	srv, store, token := setupTestServer(t)
	router := srv.Router()

	// Verify stale token from non-existent user is rejected (401)
	staleToken, _ := auth.GenerateToken("test-jwt-secret-key", "usr_non_existent", "old@mindsift.local", "Old")
	req := httptest.NewRequest(http.MethodGet, "/api/v1/auth/me", nil)
	req.Header.Set("Authorization", "Bearer "+staleToken)
	rec := httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusUnauthorized {
		t.Fatalf("expected 401 Unauthorized for stale token, got %d", rec.Code)
	}

	// 1. Capture Quick Dump (default target: inbox)
	dumpPayload := map[string]string{
		"content":  "Schneller Quick Dump Testgedanke #test",
		"priority": "high",
		"target":   "inbox",
	}
	body, _ := json.Marshal(dumpPayload)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/inbox", bytes.NewReader(body))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created for Quick Dump, got %d: %s", rec.Code, rec.Body.String())
	}

	var createdDump domain.Thought
	if err := json.Unmarshal(rec.Body.Bytes(), &createdDump); err != nil {
		t.Fatalf("failed to decode created dump: %v", err)
	}
	if createdDump.Status != domain.StatusInbox {
		t.Fatalf("expected status 'inbox', got %q", createdDump.Status)
	}

	// 2. Capture Direct Task (target: task)
	taskPayload := map[string]string{
		"content":  "Direkte Aufgabe ohne Triage",
		"priority": "urgent",
		"target":   "task",
		"dueDate":  "2026-11-01",
	}
	body, _ = json.Marshal(taskPayload)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/inbox", bytes.NewReader(body))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created for Direct Task, got %d: %s", rec.Code, rec.Body.String())
	}
	var createdTask domain.Thought
	_ = json.Unmarshal(rec.Body.Bytes(), &createdTask)
	if createdTask.Status != domain.StatusConverted || createdTask.ConvertedType != "task" {
		t.Fatalf("expected converted task, got status=%q type=%q", createdTask.Status, createdTask.ConvertedType)
	}

	// 3. Capture Direct List Item (target: list_item)
	defUser, _ := store.EnsureDefaultUser()
	lists, err := store.GetAllListsForUser(defUser.ID)
	if err != nil || len(lists) == 0 {
		t.Fatalf("expected starter lists, got len=%d err=%v", len(lists), err)
	}
	targetListID := lists[0].ID

	listPayload := map[string]string{
		"content":      "Frische Haferflocken",
		"target":       "list_item",
		"targetListId": targetListID,
	}
	body, _ = json.Marshal(listPayload)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/inbox", bytes.NewReader(body))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created for Direct List Item, got %d: %s", rec.Code, rec.Body.String())
	}
	var createdListItemThought domain.Thought
	_ = json.Unmarshal(rec.Body.Bytes(), &createdListItemThought)
	if createdListItemThought.ConvertedType != "list_item" || createdListItemThought.ConvertedRefID == "" {
		t.Fatalf("expected converted list_item, got %+v", createdListItemThought)
	}

	// 4. Swipe Triage card to Task
	triagePayload := map[string]string{
		"action":    "keep",
		"convertTo": "task",
	}
	body, _ = json.Marshal(triagePayload)
	req = httptest.NewRequest(http.MethodPatch, "/api/v1/triage/"+createdDump.ID, bytes.NewReader(body))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for triage action, got %d: %s", rec.Code, rec.Body.String())
	}
}

func TestNewFullFeatures(t *testing.T) {
	srv, _, token := setupTestServer(t)
	router := srv.Router()

	// 1. Test TaskLists: Create & Get
	taskListPayload := map[string]string{
		"title": "Homelab & Docker",
		"icon":  "🐳",
		"color": "#3b82f6",
	}
	body, _ := json.Marshal(taskListPayload)
	req := httptest.NewRequest(http.MethodPost, "/api/v1/task-lists", bytes.NewReader(body))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec := httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created for TaskList, got %d: %s", rec.Code, rec.Body.String())
	}
	var createdTaskList domain.TaskList
	_ = json.Unmarshal(rec.Body.Bytes(), &createdTaskList)
	if createdTaskList.Title != "Homelab & Docker" {
		t.Fatalf("expected task list title 'Homelab & Docker', got %q", createdTaskList.Title)
	}

	req = httptest.NewRequest(http.MethodGet, "/api/v1/task-lists", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for GET /api/v1/task-lists, got %d", rec.Code)
	}

	// 2. Test User Settings: Update Multi-Channel Alarms & Profile
	settingsPayload := map[string]interface{}{
		"displayName":         "Admin User",
		"alarmChannels":       []string{"email", "discord", "webhook"},
		"alarmEmail":          "alarms@example.com",
		"discordWebhookUrl":   "https://discord.com/api/webhooks/test/123",
		"customWebhookUrl":    "https://ntfy.sh/my-topic",
		"notifyBeforeMinutes": 15,
	}
	body, _ = json.Marshal(settingsPayload)
	req = httptest.NewRequest(http.MethodPatch, "/api/v1/auth/settings", bytes.NewReader(body))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for PATCH /api/v1/auth/settings, got %d: %s", rec.Code, rec.Body.String())
	}
	var updatedUser domain.User
	_ = json.Unmarshal(rec.Body.Bytes(), &updatedUser)
	if len(updatedUser.AlarmChannels) != 3 || updatedUser.AlarmEmail != "alarms@example.com" {
		t.Fatalf("expected 3 alarm channels and alarmEmail, got %+v", updatedUser)
	}

	// 3. Test Admin routes (default user is admin)
	req = httptest.NewRequest(http.MethodGet, "/api/v1/admin/users", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for GET /api/v1/admin/users, got %d: %s", rec.Code, rec.Body.String())
	}

	req = httptest.NewRequest(http.MethodGet, "/api/v1/admin/settings", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for GET /api/v1/admin/settings, got %d: %s", rec.Code, rec.Body.String())
	}

	// 4. Test Kanban & Task details update
	taskUpdatePayload := map[string]interface{}{
		"kanbanStatus": "in_progress",
		"notes":        "Detailnotizen für die Aufgabe",
		"taskListId":   createdTaskList.ID,
	}
	req = httptest.NewRequest(http.MethodPost, "/api/v1/inbox", bytes.NewReader([]byte(`{"content":"Kanban Task Test","target":"task"}`)))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	var taskThought domain.Thought
	_ = json.Unmarshal(rec.Body.Bytes(), &taskThought)

	body, _ = json.Marshal(taskUpdatePayload)
	req = httptest.NewRequest(http.MethodPatch, "/api/v1/thoughts/"+taskThought.ID, bytes.NewReader(body))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)

	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for PATCH /api/v1/thoughts/{id}, got %d: %s", rec.Code, rec.Body.String())
	}
	var updatedThought domain.Thought
	_ = json.Unmarshal(rec.Body.Bytes(), &updatedThought)
	if updatedThought.KanbanStatus != "in_progress" || updatedThought.Notes != "Detailnotizen für die Aufgabe" {
		t.Fatalf("expected updated kanbanStatus and notes, got %+v", updatedThought)
	}
}

func TestLoginWithUsernameAndDemoMode(t *testing.T) {
	dbPath := filepath.Join(t.TempDir(), "demo_api_test.db")
	store, err := storage.NewStore(dbPath)
	if err != nil {
		t.Fatalf("failed to create store: %v", err)
	}
	defer store.Close()

	if err := store.EnsureDemoAccounts(); err != nil {
		t.Fatalf("failed to seed demo accounts: %v", err)
	}

	cfg := &config.Config{
		Port:         "8080",
		DatabasePath: dbPath,
		JWTSecret:    "demo-jwt-secret",
		DemoMode:     true,
	}
	srv := NewServer(cfg, store, ws.NewHub(), nil)
	router := srv.Router()

	// 1. Check auth status reports demoMode: true
	req := httptest.NewRequest(http.MethodGet, "/api/v1/auth/status", nil)
	rec := httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK from /api/v1/auth/status, got %d", rec.Code)
	}
	var statusResp struct {
		NeedsSetup bool `json:"needsSetup"`
		DemoMode   bool `json:"demoMode"`
	}
	_ = json.Unmarshal(rec.Body.Bytes(), &statusResp)
	if !statusResp.DemoMode {
		t.Fatalf("expected demoMode=true, got %v", statusResp.DemoMode)
	}
	if statusResp.NeedsSetup {
		t.Fatalf("expected needsSetup=false when demo accounts exist, got %v", statusResp.NeedsSetup)
	}

	// 2. Login with username "admin" / "admin"
	loginBody := []byte(`{"email":"admin","password":"admin"}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/auth/login", bytes.NewReader(loginBody))
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for admin login, got %d: %s", rec.Code, rec.Body.String())
	}
	var loginRes struct {
		Token string      `json:"token"`
		User  domain.User `json:"user"`
	}
	_ = json.Unmarshal(rec.Body.Bytes(), &loginRes)
	if loginRes.Token == "" || loginRes.User.Role != "admin" {
		t.Fatalf("invalid admin login response: %+v", loginRes)
	}

	// 3. Login with username "user" / "user"
	userLoginBody := []byte(`{"username":"user","password":"user"}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/auth/login", bytes.NewReader(userLoginBody))
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for user login, got %d: %s", rec.Code, rec.Body.String())
	}
	var userLoginRes struct {
		Token string      `json:"token"`
		User  domain.User `json:"user"`
	}
	_ = json.Unmarshal(rec.Body.Bytes(), &userLoginRes)
	if userLoginRes.Token == "" || userLoginRes.User.Role != "member" {
		t.Fatalf("invalid user login response: %+v", userLoginRes)
	}

	// 4. Invalid credentials must return 401
	wrongLoginBody := []byte(`{"login":"admin","password":"wrongpassword"}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/auth/login", bytes.NewReader(wrongLoginBody))
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusUnauthorized {
		t.Fatalf("expected 401 Unauthorized for wrong password, got %d", rec.Code)
	}
}

func TestSpaceMembersDirectInvitationAPI(t *testing.T) {
	dbPath := filepath.Join(t.TempDir(), "space_members_test.db")
	store, err := storage.NewStore(dbPath)
	if err != nil {
		t.Fatalf("failed to create store: %v", err)
	}
	defer store.Close()

	if err := store.EnsureDemoAccounts(); err != nil {
		t.Fatalf("failed to seed demo accounts: %v", err)
	}

	cfg := &config.Config{
		Port:         "8080",
		DatabasePath: dbPath,
		JWTSecret:    "test-secret",
	}
	srv := NewServer(cfg, store, ws.NewHub(), nil)
	router := srv.Router()

	adminUser, err := store.GetUserByLogin("admin")
	if err != nil {
		t.Fatalf("failed to get admin user: %v", err)
	}
	normalUser, err := store.GetUserByLogin("user")
	if err != nil {
		t.Fatalf("failed to get normal user: %v", err)
	}

	adminToken, err := auth.GenerateToken(cfg.JWTSecret, adminUser.ID, adminUser.Email, adminUser.DisplayName)
	if err != nil {
		t.Fatalf("failed to generate token: %v", err)
	}
	userToken, err := auth.GenerateToken(cfg.JWTSecret, normalUser.ID, normalUser.Email, normalUser.DisplayName)
	if err != nil {
		t.Fatalf("failed to generate token: %v", err)
	}

	// 1. Admin creates a space
	createSpaceBody := []byte(`{"name":"Einkauf WG","icon":"🛒","description":"Gemeinsame Einkaufsliste"}`)
	req := httptest.NewRequest(http.MethodPost, "/api/v1/spaces", bytes.NewReader(createSpaceBody))
	req.Header.Set("Authorization", "Bearer "+adminToken)
	req.Header.Set("Content-Type", "application/json")
	rec := httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created from /api/v1/spaces, got %d: %s", rec.Code, rec.Body.String())
	}
	var createdSpace domain.Space
	_ = json.Unmarshal(rec.Body.Bytes(), &createdSpace)
	if createdSpace.ID == "" {
		t.Fatalf("expected created space with ID, got %+v", createdSpace)
	}

	// 2. Admin invites normalUser by username "user"
	addMemberBody := []byte(`{"userId":"user","role":"editor"}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/spaces/"+createdSpace.ID+"/members", bytes.NewReader(addMemberBody))
	req.Header.Set("Authorization", "Bearer "+adminToken)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created from add space member, got %d: %s", rec.Code, rec.Body.String())
	}
	var newMember domain.SpaceMember
	_ = json.Unmarshal(rec.Body.Bytes(), &newMember)
	if newMember.UserID != normalUser.ID {
		t.Fatalf("expected member userId %s, got %s", normalUser.ID, newMember.UserID)
	}

	// 3. User checks their spaces; the shared space must be listed
	req = httptest.NewRequest(http.MethodGet, "/api/v1/spaces", nil)
	req.Header.Set("Authorization", "Bearer "+userToken)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for user spaces, got %d", rec.Code)
	}
	var userSpaces []domain.Space
	_ = json.Unmarshal(rec.Body.Bytes(), &userSpaces)
	found := false
	for _, s := range userSpaces {
		if s.ID == createdSpace.ID {
			found = true
			break
		}
	}
	if !found {
		t.Fatalf("expected space %s to be visible to user, got %+v", createdSpace.ID, userSpaces)
	}

	// 4. Admin removes user from space
	req = httptest.NewRequest(http.MethodDelete, "/api/v1/spaces/"+createdSpace.ID+"/members/"+normalUser.ID, nil)
	req.Header.Set("Authorization", "Bearer "+adminToken)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for remove member, got %d: %s", rec.Code, rec.Body.String())
	}

	// 5. Test adding a team to a space
	team, err := store.CreateTeam("", "WG Team", "Haushalt")
	if err != nil {
		t.Fatalf("failed to create team: %v", err)
	}
	_ = store.AddTeamMember(team.ID, normalUser.ID, "member")

	addTeamBody := []byte(`{"teamId":"` + team.ID + `","role":"editor"}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/spaces/"+createdSpace.ID+"/members", bytes.NewReader(addTeamBody))
	req.Header.Set("Authorization", "Bearer "+adminToken)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusCreated && rec.Code != http.StatusOK {
		t.Fatalf("expected 201 or 200 for add space team, got %d: %s", rec.Code, rec.Body.String())
	}

	// User should see the space again because their team was added
	req = httptest.NewRequest(http.MethodGet, "/api/v1/spaces", nil)
	req.Header.Set("Authorization", "Bearer "+userToken)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK for user spaces after team add, got %d", rec.Code)
	}
	userSpaces = nil
	_ = json.Unmarshal(rec.Body.Bytes(), &userSpaces)
	found = false
	for _, s := range userSpaces {
		if s.ID == createdSpace.ID {
			found = true
			break
		}
	}
	if !found {
		t.Fatalf("expected space %s to be visible to user via team, got %+v", createdSpace.ID, userSpaces)
	}
}

func TestWorkspaceTagsAPI(t *testing.T) {
	srv, store, _ := setupTestServer(t)
	router := srv.Router()

	user, _ := store.CreateUser("api_tag_user@example.com", "hash", "API Tag User", "member")
	token, _ := auth.GenerateToken(srv.cfg.JWTSecret, user.ID, user.Email, user.DisplayName)

	// Create document with hashtags
	blocks := []domain.DocumentBlock{
		{ID: "b1", Type: "bullet", Content: "Planung #Sprint12", Level: 0},
		{ID: "b2", Type: "bullet", Content: "Subtask 1", Level: 1},
	}
	_, err := store.CreateDocument(user.ID, "", "Sprint Plan", "🚀", "", blocks, nil, false)
	if err != nil {
		t.Fatalf("CreateDocument failed: %v", err)
	}

	// 1. GET /api/v1/workspace/tags
	req := httptest.NewRequest(http.MethodGet, "/api/v1/workspace/tags", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	rec := httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK, got %d: %s", rec.Code, rec.Body.String())
	}
	var tagList []domain.TagSummary
	_ = json.Unmarshal(rec.Body.Bytes(), &tagList)
	if len(tagList) != 1 || tagList[0].Tag != "sprint12" {
		t.Fatalf("expected tag 'sprint12', got %+v", tagList)
	}

	// 2. GET /api/v1/workspace/tags/Sprint12
	req = httptest.NewRequest(http.MethodGet, "/api/v1/workspace/tags/Sprint12", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK, got %d: %s", rec.Code, rec.Body.String())
	}
	var details domain.TagDetails
	_ = json.Unmarshal(rec.Body.Bytes(), &details)
	if details.Tag != "sprint12" || details.TotalMatches != 1 || len(details.Documents) != 1 {
		t.Fatalf("unexpected tag details: %+v", details)
	}
	matched := details.Documents[0].MatchedBlocks[0]
	if matched.RootBlock.ID != "b1" || len(matched.Children) != 1 || matched.Children[0].ID != "b2" {
		t.Fatalf("unexpected matched blocks or children: %+v", matched)
	}

	// 3. Folder endpoints test
	// Create folder
	createFolderBody := []byte(`{"path":"TestOrdner"}`)
	req = httptest.NewRequest(http.MethodPost, "/api/v1/folders", bytes.NewReader(createFolderBody))
	req.Header.Set("Authorization", "Bearer "+token)
	req.Header.Set("Content-Type", "application/json")
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusCreated {
		t.Fatalf("expected 201 Created from /api/v1/folders, got %d: %s", rec.Code, rec.Body.String())
	}

	// Get folders
	req = httptest.NewRequest(http.MethodGet, "/api/v1/folders", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK from /api/v1/folders, got %d", rec.Code)
	}
	var folders []string
	_ = json.Unmarshal(rec.Body.Bytes(), &folders)
	foundFolder := false
	for _, f := range folders {
		if f == "TestOrdner" {
			foundFolder = true
			break
		}
	}
	if !foundFolder {
		t.Fatalf("expected TestOrdner in folders list, got %v", folders)
	}

	// Delete folder
	req = httptest.NewRequest(http.MethodDelete, "/api/v1/folders?path=TestOrdner", nil)
	req.Header.Set("Authorization", "Bearer "+token)
	rec = httptest.NewRecorder()
	router.ServeHTTP(rec, req)
	if rec.Code != http.StatusOK {
		t.Fatalf("expected 200 OK from DELETE /api/v1/folders, got %d", rec.Code)
	}
}