package v1

import (
	"encoding/json"
	"fmt"
	"net/http"
	"net/http/httptest"
	"strconv"
	"strings"
	"testing"
	"time"

	"github.com/gin-gonic/gin"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"gorm.io/driver/sqlite"
	"gorm.io/gorm"

	"github.com/gochat/gochat/internal/model"
	"github.com/gochat/gochat/internal/repository"
	"github.com/gochat/gochat/internal/service"
)

func uintPtr(v uint) *uint { return &v }

func setupNotificationDB(t *testing.T) *gorm.DB {
	t.Helper()
	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
	assert.NoError(t, err)
	err = db.AutoMigrate(&model.Notification{}, &model.User{}, &model.Account{}, &model.NotificationPreference{})
	assert.NoError(t, err)
	return db
}

func setupNotificationHandler(t *testing.T, db *gorm.DB) *NotificationHandler {
	t.Helper()
	notifRepo := repository.NewNotificationRepo(db)
	prefRepo := repository.NewNotificationPreferenceRepo(db)
	ns := service.NewNotificationService(db, notifRepo, prefRepo)
	return NewNotificationHandler(ns)
}

func setupNotificationRouter(handler *NotificationHandler) *gin.Engine {
	gin.SetMode(gin.TestMode)
	router := gin.New()
	// Middleware to set user_id in context — required by handlers that call getUserID(c)
	router.Use(func(c *gin.Context) {
		// Set a default user_id; individual tests can override via request header
		if uidStr := c.GetHeader("X-User-ID"); uidStr != "" {
			if uid, err := strconv.ParseUint(uidStr, 10, 64); err == nil {
				c.Set("user_id", uint(uid))
			}
		}
		c.Next()
	})
	router.GET("/api/v1/accounts/:account_id/notifications", handler.List)
	router.POST("/api/v1/accounts/:account_id/notifications/read_all", handler.MarkAllRead)
	router.GET("/api/v1/accounts/:account_id/notifications/unread_count", handler.UnreadCount)
	router.POST("/api/v1/accounts/:account_id/notifications/destroy_all", handler.DestroyAll)
	router.DELETE("/api/v1/accounts/:account_id/notifications/destroy_all", handler.DestroyAll)
	router.GET("/api/v1/accounts/:account_id/notifications/:notification_id", handler.Get)
	router.PUT("/api/v1/accounts/:account_id/notifications/:notification_id", handler.Update)
	router.DELETE("/api/v1/accounts/:account_id/notifications/:notification_id", handler.Destroy)
	// G8 extension routes
	router.POST("/api/v1/accounts/:account_id/notifications/:notification_id/snooze", handler.Snooze)
	router.POST("/api/v1/accounts/:account_id/notifications/:notification_id/unread", handler.Unread)
	return router
}

func TestNotificationList(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/notifications", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusOK, w.Code)
	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationListEmpty(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/notifications", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusOK, w.Code)
	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationHandler_List_ChatwootEnvelopeAndIncludes(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "Envelope User", Email: "envelope@example.com", Password: "pass", AccountID: 1}
	require.NoError(t, db.Create(user).Error)
	accountID := uint(1)
	readAt := time.Now()
	snoozedUntil := time.Now().Add(time.Hour)
	unread := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "message_created", PrimaryActorType: "Conversation", PrimaryActorID: 101, AdditionalAttributes: []byte(`{"push_message_title":"New message","push_message_body":"Hello"}`)}
	read := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "conversation_assignment", PrimaryActorType: "Conversation", PrimaryActorID: 102, ReadAt: &readAt}
	snoozed := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "conversation_mention", PrimaryActorType: "Conversation", PrimaryActorID: 103, SnoozedUntil: &snoozedUntil}
	require.NoError(t, db.Create(unread).Error)
	require.NoError(t, db.Create(read).Error)
	require.NoError(t, db.Create(snoozed).Error)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/notifications", nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusOK, w.Code)
	var body map[string]any
	require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
	data := body["data"].(map[string]any)
	meta := data["meta"].(map[string]any)
	payload := data["payload"].([]any)
	assert.Equal(t, float64(1), meta["count"])
	assert.Equal(t, float64(1), meta["unread_count"])
	require.Len(t, payload, 1)
	item := payload[0].(map[string]any)
	assert.Equal(t, "New message", item["push_message_title"])
	assert.Equal(t, "Hello", item["push_message_body"])
	assert.Equal(t, float64(101), item["primary_actor_id"])
	assert.NotContains(t, body, "success")

	w = httptest.NewRecorder()
	req, _ = http.NewRequest("GET", "/api/v1/accounts/1/notifications?includes[]=read&includes[]=snoozed", nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusOK, w.Code)
	require.NoError(t, json.Unmarshal(w.Body.Bytes(), &body))
	data = body["data"].(map[string]any)
	meta = data["meta"].(map[string]any)
	payload = data["payload"].([]any)
	assert.Equal(t, float64(3), meta["count"])
	assert.Equal(t, float64(2), meta["unread_count"])
	assert.Len(t, payload, 3)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationGet(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/notifications/10", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusNotFound, w.Code) // notification doesn't exist
	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationGetDifferentID(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/5/notifications/42", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusNotFound, w.Code) // notification doesn't exist
	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationMutationsAreScopedToCurrentUserAndAccount(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "Scoped User", Email: "scoped@example.com", Password: "pass", AccountID: 1}
	otherUser := &model.User{Name: "Other User", Email: "scoped-other@example.com", Password: "pass", AccountID: 2}
	require.NoError(t, db.Create(user).Error)
	require.NoError(t, db.Create(otherUser).Error)
	accountID := uint(1)
	otherAccountID := uint(2)
	own := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "message_created", PrimaryActorType: "Conversation", PrimaryActorID: 1}
	otherAccount := &model.Notification{UserID: user.ID, AccountID: &otherAccountID, NotificationType: "message_created", PrimaryActorType: "Conversation", PrimaryActorID: 2}
	otherOwner := &model.Notification{UserID: otherUser.ID, AccountID: &accountID, NotificationType: "message_created", PrimaryActorType: "Conversation", PrimaryActorID: 3}
	require.NoError(t, db.Create(own).Error)
	require.NoError(t, db.Create(otherAccount).Error)
	require.NoError(t, db.Create(otherOwner).Error)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", fmt.Sprintf("/api/v1/accounts/1/notifications/%d", otherAccount.ID), nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusNotFound, w.Code)

	w = httptest.NewRecorder()
	req, _ = http.NewRequest("PUT", fmt.Sprintf("/api/v1/accounts/1/notifications/%d", otherOwner.ID), nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusNotFound, w.Code)

	w = httptest.NewRecorder()
	req, _ = http.NewRequest("PUT", fmt.Sprintf("/api/v1/accounts/1/notifications/%d", own.ID), nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusOK, w.Code)
	var reloaded model.Notification
	require.NoError(t, db.First(&reloaded, own.ID).Error)
	assert.NotNil(t, reloaded.ReadAt)

	w = httptest.NewRecorder()
	req, _ = http.NewRequest("DELETE", fmt.Sprintf("/api/v1/accounts/1/notifications/%d", otherAccount.ID), nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusNotFound, w.Code)
	var otherAccountReloaded model.Notification
	require.NoError(t, db.First(&otherAccountReloaded, otherAccount.ID).Error)

	w = httptest.NewRecorder()
	req, _ = http.NewRequest("DELETE", fmt.Sprintf("/api/v1/accounts/1/notifications/%d", own.ID), nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusOK, w.Code)
	require.Error(t, db.First(&reloaded, own.ID).Error)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationUnreadCountIsAccountScoped(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "Unread Scoped User", Email: "unread-scoped@example.com", Password: "pass", AccountID: 1}
	require.NoError(t, db.Create(user).Error)
	accountID := uint(1)
	otherAccountID := uint(2)
	require.NoError(t, db.Create(&model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "message_created"}).Error)
	require.NoError(t, db.Create(&model.Notification{UserID: user.ID, AccountID: &otherAccountID, NotificationType: "message_created"}).Error)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/notifications/unread_count", nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusOK, w.Code)
	assert.Equal(t, "1", strings.TrimSpace(w.Body.String()))

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationReadAll(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/accounts/1/notifications/read_all", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusOK, w.Code)
	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationMarkRead(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("PATCH", "/api/v1/accounts/1/notifications/5/read", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusNotFound, w.Code) // notification doesn't exist
	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationCRUDWithDB(t *testing.T) {
	db := setupNotificationDB(t)

	user := &model.User{Name: "Notif User", Email: "notif@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	// Create notification
	notif := &model.Notification{
		UserID:             user.ID,
		AccountID:          uintPtr(1),
		NotificationType:   "conversation_assignment",
		PrimaryActorType:   "conversation",
		PrimaryActorID:     5,
		SecondaryActorType: "user",
		SecondaryActorID:   3,
	}
	err := db.Create(notif).Error
	assert.NoError(t, err)
	assert.NotEqual(t, 0, notif.ID)

	// Read notification
	var fetched model.Notification
	err = db.First(&fetched, notif.ID).Error
	assert.NoError(t, err)
	assert.Equal(t, "conversation_assignment", fetched.NotificationType)
	assert.Nil(t, fetched.ReadAt)

	// Mark as read
	now := time.Now()
	err = db.Model(&fetched).Update("read_at", &now).Error
	assert.NoError(t, err)
	err = db.First(&fetched, notif.ID).Error
	assert.NoError(t, err)
	assert.NotNil(t, fetched.ReadAt)

	// Delete notification
	err = db.Delete(&fetched).Error
	assert.NoError(t, err)
	err = db.First(&fetched, notif.ID).Error
	assert.Error(t, err)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationReadAllWithDB(t *testing.T) {
	db := setupNotificationDB(t)

	user := &model.User{Name: "Notif User2", Email: "notif2@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	// Create multiple unread notifications
	for i := 0; i < 5; i++ {
		notif := &model.Notification{
			UserID:           user.ID,
			AccountID:        uintPtr(1),
			NotificationType: "message_created",
			PrimaryActorType: "message",
			PrimaryActorID:   uint(i + 1),
		}
		err := db.Create(notif).Error
		assert.NoError(t, err)
	}

	// Verify all are unread
	var unreadCount int64
	db.Model(&model.Notification{}).Where("user_id = ? AND read_at IS NULL", user.ID).Count(&unreadCount)
	assert.Equal(t, int64(5), unreadCount)

	// Mark all as read
	now := time.Now()
	db.Model(&model.Notification{}).Where("user_id = ? AND read_at IS NULL", user.ID).Update("read_at", &now)

	// Verify all are read
	db.Model(&model.Notification{}).Where("user_id = ? AND read_at IS NULL", user.ID).Count(&unreadCount)
	assert.Equal(t, int64(0), unreadCount)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationTypes(t *testing.T) {
	types := []string{
		"conversation_assignment",
		"conversation_created",
		"message_created",
		"assigned_conversation_new_message",
		"conversation_mention",
	}
	for _, nt := range types {
		notif := model.Notification{NotificationType: nt}
		assert.Equal(t, nt, notif.NotificationType)
	}
}

func TestNotificationModelFields(t *testing.T) {
	notif := model.Notification{
		UserID:             1,
		AccountID:          uintPtr(2),
		NotificationType:   "conversation_assignment",
		PrimaryActorType:   "conversation",
		PrimaryActorID:     5,
		SecondaryActorType: "user",
		SecondaryActorID:   3,
	}
	assert.Equal(t, uint(1), notif.UserID)
	assert.Equal(t, uintPtr(2), notif.AccountID)
	assert.Equal(t, "conversation_assignment", notif.NotificationType)
	assert.Nil(t, notif.ReadAt)
}

func TestNotificationPagination(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/notifications?page=1&per_page=20", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusOK, w.Code)
	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationListByAccount(t *testing.T) {
	db := setupNotificationDB(t)

	user1 := &model.User{Name: "User1", Email: "u1@example.com", Password: "pass", AccountID: 1}
	user2 := &model.User{Name: "User2", Email: "u2@example.com", Password: "pass", AccountID: 2}
	db.Create(user1)
	db.Create(user2)

	for i := 0; i < 3; i++ {
		notif := &model.Notification{UserID: user1.ID, AccountID: uintPtr(1), NotificationType: "message_created", PrimaryActorType: "message", PrimaryActorID: uint(i + 1)}
		db.Create(notif)
	}
	for i := 0; i < 2; i++ {
		notif := &model.Notification{UserID: user2.ID, AccountID: uintPtr(2), NotificationType: "conversation_assignment", PrimaryActorType: "conversation", PrimaryActorID: uint(i + 1)}
		db.Create(notif)
	}

	var account1Notifs []model.Notification
	err := db.Where("account_id = ?", 1).Find(&account1Notifs).Error
	assert.NoError(t, err)
	assert.Equal(t, 3, len(account1Notifs))

	var account2Notifs []model.Notification
	err = db.Where("account_id = ?", 2).Find(&account2Notifs).Error
	assert.NoError(t, err)
	assert.Equal(t, 2, len(account2Notifs))

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationGetInvalidID(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("GET", "/api/v1/accounts/1/notifications/abc", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code) // invalid ID format
	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationReadSpecificNotification(t *testing.T) {
	db := setupNotificationDB(t)

	user := &model.User{Name: "Specific User", Email: "specific@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	notif := &model.Notification{UserID: user.ID, AccountID: uintPtr(1), NotificationType: "message_created", PrimaryActorType: "message", PrimaryActorID: 1}
	db.Create(notif)

	// Read specific notification
	err := db.Model(notif).Update("ReadAt", time.Now()).Error
	assert.NoError(t, err)

	var fetched model.Notification
	db.First(&fetched, notif.ID)
	assert.NotNil(t, fetched.ReadAt)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationFilterByReadStatus(t *testing.T) {
	db := setupNotificationDB(t)

	user := &model.User{Name: "Filter User", Email: "filter@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	// Create mix of read and unread
	for i := 0; i < 5; i++ {
		var readAt *time.Time
		if i%2 == 0 {
			readAt = &time.Time{}
		}
		notif := &model.Notification{UserID: user.ID, AccountID: uintPtr(1), NotificationType: "message_created", PrimaryActorType: "message", PrimaryActorID: uint(i + 1), ReadAt: readAt}
		db.Create(notif)
	}

	var unread []model.Notification
	err := db.Where("user_id = ? AND read_at IS NULL", user.ID).Find(&unread).Error
	assert.NoError(t, err)
	assert.Equal(t, 2, len(unread)) // indices 1,3 are unread

	var read []model.Notification
	err = db.Where("user_id = ? AND read_at IS NOT NULL", user.ID).Find(&read).Error
	assert.NoError(t, err)
	assert.Equal(t, 3, len(read)) // indices 0,2,4 are read

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationSoftDelete(t *testing.T) {
	db := setupNotificationDB(t)

	user := &model.User{Name: "SoftDel Notif User", Email: "softdel@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	notif := &model.Notification{UserID: user.ID, AccountID: uintPtr(1), NotificationType: "message_created", PrimaryActorType: "message", PrimaryActorID: 1}
	db.Create(notif)

	err := db.Delete(notif).Error
	assert.NoError(t, err)

	var found model.Notification
	err = db.First(&found, notif.ID).Error
	assert.Error(t, err)

	err = db.Unscoped().First(&found, notif.ID).Error
	assert.NoError(t, err)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

// --- G8 extension handler tests: Snooze, Unread, DestroyAll ---
// Reference: Chatwoot notifications_controller.rb#snooze, #unread, #destroy_all

func TestNotificationHandler_SnoozeWithDB(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "Snooze Handler User", Email: "snooze-handler@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	accountID := uint(1)
	notif := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "conversation_assignment", PrimaryActorType: "conversation", PrimaryActorID: 1}
	db.Create(notif)

	// Chatwoot DateRangeHelper parses snoozed_until as Unix seconds.
	snoozeUnix := time.Now().Add(2 * time.Hour).Unix()
	body := fmt.Sprintf(`{"snoozed_until":%d}`, snoozeUnix)
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/1/notifications/%d/snooze", notif.ID), strings.NewReader(body))
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusOK, w.Code)

	// Verify notification has snoozed_until set
	var updated model.Notification
	require.NoError(t, db.First(&updated, notif.ID).Error)
	assert.NotNil(t, updated.SnoozedUntil)
	assert.Equal(t, snoozeUnix, updated.SnoozedUntil.Unix())
	var meta map[string]any
	require.NoError(t, json.Unmarshal(updated.AdditionalAttributes, &meta))
	assert.Contains(t, meta, "last_snoozed_at")

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationHandler_Snooze_InvalidID(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	snoozeTime := time.Now().Add(2 * time.Hour).Unix()
	body := fmt.Sprintf(`{"snoozed_until":%d}`, snoozeTime)
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/accounts/1/notifications/abc/snooze", strings.NewReader(body))
	req.Header.Set("Content-Type", "application/json")
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationHandler_Snooze_MissingBody(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "Snooze Missing User", Email: "snooze-missing@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	accountID := uint(1)
	notif := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "conversation_assignment", PrimaryActorType: "conversation", PrimaryActorID: 1}
	db.Create(notif)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/1/notifications/%d/snooze", notif.ID), nil)
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusOK, w.Code)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationHandler_UnreadWithDB(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "Unread Handler User", Email: "unread-handler@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	accountID := uint(1)
	readTime := time.Now()
	notif := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "conversation_assignment", PrimaryActorType: "conversation", PrimaryActorID: 1, ReadAt: &readTime}
	db.Create(notif)

	// Mark it unread
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", fmt.Sprintf("/api/v1/accounts/1/notifications/%d/unread", notif.ID), nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusOK, w.Code)

	// Verify notification read_at is cleared
	var updated model.Notification
	require.NoError(t, db.First(&updated, notif.ID).Error)
	assert.Nil(t, updated.ReadAt)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationHandler_Unread_InvalidID(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/accounts/1/notifications/abc/unread", nil)
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusBadRequest, w.Code)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationHandler_DestroyAllWithDB(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "DestroyAll Handler User", Email: "destroy-all-handler@example.com", Password: "pass", AccountID: 1}
	db.Create(user)

	accountID := uint(1)
	// Create multiple notifications
	for i := 0; i < 5; i++ {
		notif := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: fmt.Sprintf("type_%d", i), PrimaryActorType: "conversation", PrimaryActorID: uint(i + 1)}
		db.Create(notif)
	}

	// Verify they exist
	var count int64
	db.Model(&model.Notification{}).Where("user_id = ? AND account_id = ?", user.ID, accountID).Count(&count)
	assert.Equal(t, int64(5), count)

	// Destroy all
	w := httptest.NewRecorder()
	req, _ := http.NewRequest("DELETE", "/api/v1/accounts/1/notifications/destroy_all", nil)
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)

	assert.Equal(t, http.StatusOK, w.Code)

	// Verify all deleted
	db.Model(&model.Notification{}).Where("user_id = ? AND account_id = ?", user.ID, accountID).Count(&count)
	assert.Equal(t, int64(0), count)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationHandler_DestroyAll_ReadOnly(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "DestroyRead User", Email: "destroy-read@example.com", Password: "pass", AccountID: 1}
	require.NoError(t, db.Create(user).Error)
	accountID := uint(1)
	readAt := time.Now()
	readNotification := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "read", PrimaryActorType: "conversation", PrimaryActorID: 1, ReadAt: &readAt}
	unreadNotification := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "unread", PrimaryActorType: "conversation", PrimaryActorID: 2}
	require.NoError(t, db.Create(readNotification).Error)
	require.NoError(t, db.Create(unreadNotification).Error)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/accounts/1/notifications/destroy_all", strings.NewReader(`{"type":"read"}`))
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusOK, w.Code)

	var count int64
	require.NoError(t, db.Model(&model.Notification{}).Where("id = ?", readNotification.ID).Count(&count).Error)
	assert.Equal(t, int64(0), count)
	require.NoError(t, db.Model(&model.Notification{}).Where("id = ?", unreadNotification.ID).Count(&count).Error)
	assert.Equal(t, int64(1), count)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}

func TestNotificationHandler_MarkAllRead_PrimaryActorOnly(t *testing.T) {
	db := setupNotificationDB(t)
	handler := setupNotificationHandler(t, db)
	router := setupNotificationRouter(handler)

	user := &model.User{Name: "Actor Read User", Email: "actor-read@example.com", Password: "pass", AccountID: 1}
	require.NoError(t, db.Create(user).Error)
	accountID := uint(1)
	matching := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "message_created", PrimaryActorType: "Conversation", PrimaryActorID: 1}
	other := &model.Notification{UserID: user.ID, AccountID: &accountID, NotificationType: "message_created", PrimaryActorType: "Conversation", PrimaryActorID: 2}
	require.NoError(t, db.Create(matching).Error)
	require.NoError(t, db.Create(other).Error)

	w := httptest.NewRecorder()
	req, _ := http.NewRequest("POST", "/api/v1/accounts/1/notifications/read_all", strings.NewReader(`{"primary_actor_type":"Conversation","primary_actor_id":1}`))
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("X-User-ID", strconv.FormatUint(uint64(user.ID), 10))
	router.ServeHTTP(w, req)
	require.Equal(t, http.StatusOK, w.Code)

	var matchingReloaded model.Notification
	require.NoError(t, db.First(&matchingReloaded, matching.ID).Error)
	assert.NotNil(t, matchingReloaded.ReadAt)
	var otherReloaded model.Notification
	require.NoError(t, db.First(&otherReloaded, other.ID).Error)
	assert.Nil(t, otherReloaded.ReadAt)

	sqlDB, _ := db.DB()
	sqlDB.Close()
}