package service

import (
	"context"
	"encoding/json"
	"testing"

	"github.com/gochat/gochat/internal/model"
	"github.com/gochat/gochat/internal/repository"
	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"gorm.io/gorm"
)

// ============================================================
// ContactInboxService tests
// ============================================================

func TestContactInboxService_GetByID(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewContactInboxRepo(db)
	svc := NewContactInboxService(repo)

	ci := &model.ContactInbox{ContactID: 1, InboxID: 1, SourceID: "src1"}
	require.NoError(t, db.Create(ci).Error)

	got, err := svc.GetByID(context.Background(), ci.ID)
	require.NoError(t, err)
	assert.Equal(t, "src1", got.SourceID)
}

func TestContactInboxService_GetByID_NotFound(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewContactInboxRepo(db)
	svc := NewContactInboxService(repo)

	_, err := svc.GetByID(context.Background(), 99999)
	require.Error(t, err)
}

func TestContactInboxService_GetByContactAndInbox(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewContactInboxRepo(db)
	svc := NewContactInboxService(repo)

	ci := &model.ContactInbox{ContactID: 1, InboxID: 1, SourceID: "src1"}
	require.NoError(t, db.Create(ci).Error)

	got, err := svc.GetByContactAndInbox(context.Background(), 1, 1)
	require.NoError(t, err)
	assert.Equal(t, "src1", got.SourceID)
}

func TestContactInboxService_ListByContact(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewContactInboxRepo(db)
	svc := NewContactInboxService(repo)

	require.NoError(t, db.Create(&model.ContactInbox{ContactID: 1, InboxID: 1, SourceID: "s1"}).Error)
	require.NoError(t, db.Create(&model.ContactInbox{ContactID: 1, InboxID: 2, SourceID: "s2"}).Error)

	list, err := svc.ListByContact(context.Background(), 1)
	require.NoError(t, err)
	assert.Len(t, list, 2)
}

func TestContactInboxService_Create(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewContactInboxRepo(db)
	svc := NewContactInboxService(repo)

	ci, err := svc.Create(context.Background(), CreateContactInboxRequest{
		ContactID: 1,
		InboxID:   1,
		SourceID:  "src1",
	})
	require.NoError(t, err)
	assert.NotZero(t, ci.ID)
}

func TestContactInboxService_Delete(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewContactInboxRepo(db)
	svc := NewContactInboxService(repo)

	ci := &model.ContactInbox{ContactID: 1, InboxID: 1, SourceID: "src1"}
	require.NoError(t, db.Create(ci).Error)

	require.NoError(t, svc.Delete(context.Background(), ci.ID))
}

// ============================================================
// InboxMemberService tests
// ============================================================

func TestInboxMemberService_GetByID(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewInboxMemberRepo(db)
	svc := NewInboxMemberService(repo)

	im := &model.InboxMember{InboxID: 1, UserID: 1}
	require.NoError(t, db.Create(im).Error)

	got, err := svc.GetByID(context.Background(), im.ID)
	require.NoError(t, err)
	assert.Equal(t, uint(1), got.InboxID)
}

func TestInboxMemberService_GetByID_NotFound(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewInboxMemberRepo(db)
	svc := NewInboxMemberService(repo)

	_, err := svc.GetByID(context.Background(), 99999)
	require.Error(t, err)
}

func TestInboxMemberService_ListByInbox(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewInboxMemberRepo(db)
	svc := NewInboxMemberService(repo)

	require.NoError(t, db.Create(&model.InboxMember{InboxID: 1, UserID: 1}).Error)
	require.NoError(t, db.Create(&model.InboxMember{InboxID: 1, UserID: 2}).Error)

	list, err := svc.ListByInbox(context.Background(), 1)
	require.NoError(t, err)
	assert.Len(t, list, 2)
}

func TestInboxMemberService_ListByUser(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewInboxMemberRepo(db)
	svc := NewInboxMemberService(repo)

	require.NoError(t, db.Create(&model.InboxMember{InboxID: 1, UserID: 1}).Error)
	require.NoError(t, db.Create(&model.InboxMember{InboxID: 2, UserID: 1}).Error)

	list, err := svc.ListByUser(context.Background(), 1)
	require.NoError(t, err)
	assert.Len(t, list, 2)
}

func TestInboxMemberService_Add(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewInboxMemberRepo(db)
	svc := NewInboxMemberService(repo)

	_, err := svc.AddMember(context.Background(), AddMemberRequest{InboxID: 1, UserID: 1})
	require.NoError(t, err)
}

func TestInboxMemberService_Remove(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewInboxMemberRepo(db)
	svc := NewInboxMemberService(repo)

	require.NoError(t, db.Create(&model.InboxMember{InboxID: 1, UserID: 1}).Error)

	require.NoError(t, svc.RemoveMember(context.Background(), 1, 1))
}

func TestInboxMemberService_RemoveAll(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	repo := repository.NewInboxMemberRepo(db)
	svc := NewInboxMemberService(repo)

	require.NoError(t, db.Create(&model.InboxMember{InboxID: 1, UserID: 1}).Error)
	require.NoError(t, db.Create(&model.InboxMember{InboxID: 1, UserID: 2}).Error)

	require.NoError(t, svc.RemoveAllMembers(context.Background(), 1))
}

// ============================================================
// WebhookSubscriptionService tests
// ============================================================

func TestWebhookSubscriptionService_ListSubscriptions(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	if err := db.AutoMigrate(&model.WebhookSubscription{}); err != nil {
		panic(err)
	}
	repo := repository.NewWebhookSubscriptionRepo(db)
	svc := NewWebhookSubscriptionService(repo)

	require.NoError(t, db.Create(&model.WebhookSubscription{AccountID: 1, URL: "http://example.com", Events: json.RawMessage(`["message_created"]`)}).Error)

	list, err := svc.ListSubscriptions(context.Background(), 1)
	require.NoError(t, err)
	assert.Len(t, list, 1)
}

func TestWebhookSubscriptionService_CreateSubscription(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	if err := db.AutoMigrate(&model.WebhookSubscription{}); err != nil {
		panic(err)
	}
	repo := repository.NewWebhookSubscriptionRepo(db)
	svc := NewWebhookSubscriptionService(repo)

	sub, err := svc.CreateSubscription(context.Background(), 1, "http://example.com/webhook", []string{"message_created", "message_updated"})
	require.NoError(t, err)
	assert.NotZero(t, sub.ID)
	assert.Equal(t, "http://example.com/webhook", sub.URL)
}

func TestWebhookSubscriptionService_DeleteSubscription(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	if err := db.AutoMigrate(&model.WebhookSubscription{}); err != nil {
		panic(err)
	}
	repo := repository.NewWebhookSubscriptionRepo(db)
	svc := NewWebhookSubscriptionService(repo)

	sub := &model.WebhookSubscription{AccountID: 1, URL: "http://example.com", Events: json.RawMessage(`["message_created"]`)}
	require.NoError(t, db.Create(sub).Error)

	require.NoError(t, svc.DeleteSubscription(context.Background(), sub.ID))
}

func TestWebhookSubscriptionService_UpdateSubscription(t *testing.T) {
	db := newSimpleServiceTestDB(t)
	if err := db.AutoMigrate(&model.WebhookSubscription{}); err != nil {
		panic(err)
	}
	repo := repository.NewWebhookSubscriptionRepo(db)
	svc := NewWebhookSubscriptionService(repo)

	sub := &model.WebhookSubscription{AccountID: 1, URL: "http://example.com", Events: json.RawMessage(`["message_created"]`)}
	require.NoError(t, db.Create(sub).Error)

	updated, err := svc.UpdateSubscription(context.Background(), sub.ID, "http://example.com/updated", []string{"message_created", "conversation_created"}, true)
	require.NoError(t, err)
	assert.Equal(t, "http://example.com/updated", updated.URL)
}

// ============================================================
// CategoryService tests
// ============================================================

func newCategoryServiceDB(t *testing.T) *gorm.DB {
	db := newSimpleServiceTestDB(t)
	if err := db.AutoMigrate(&model.Category{}, &model.RelatedCategory{}); err != nil {
		panic(err)
	}
	return db
}

func TestCategoryService_Create_Cov5(t *testing.T) {
	db := newCategoryServiceDB(t)
	repo := repository.NewCategoryRepo(db)
	relatedRepo := repository.NewRelatedCategoryRepo(db)
	svc := NewCategoryService(repo, relatedRepo)

	cat, err := svc.Create(context.Background(), 1, 1, &CreateCategoryRequest{
		Name:        "TestCat",
		Description: "Test category",
	})
	require.NoError(t, err)
	assert.Equal(t, "TestCat", cat.Name)
}

func TestCategoryService_GetByID_Cov5(t *testing.T) {
	db := newCategoryServiceDB(t)
	repo := repository.NewCategoryRepo(db)
	relatedRepo := repository.NewRelatedCategoryRepo(db)
	svc := NewCategoryService(repo, relatedRepo)

	c := &model.Category{PortalID: 1, AccountID: 1, Name: "C"}
	require.NoError(t, db.Create(c).Error)

	got, err := svc.GetByID(context.Background(), c.ID)
	require.NoError(t, err)
	assert.Equal(t, "C", got.Name)
}

func TestCategoryService_GetByID_NotFound_Cov5(t *testing.T) {
	db := newCategoryServiceDB(t)
	repo := repository.NewCategoryRepo(db)
	relatedRepo := repository.NewRelatedCategoryRepo(db)
	svc := NewCategoryService(repo, relatedRepo)

	_, err := svc.GetByID(context.Background(), 99999)
	require.Error(t, err)
}

func TestCategoryService_GetByPortalAndID(t *testing.T) {
	db := newCategoryServiceDB(t)
	repo := repository.NewCategoryRepo(db)
	relatedRepo := repository.NewRelatedCategoryRepo(db)
	svc := NewCategoryService(repo, relatedRepo)

	c := &model.Category{PortalID: 1, AccountID: 1, Name: "C"}
	require.NoError(t, db.Create(c).Error)

	got, err := svc.GetByPortalAndID(context.Background(), 1, c.ID)
	require.NoError(t, err)
	assert.Equal(t, "C", got.Name)
}

func TestCategoryService_Update_Cov5(t *testing.T) {
	db := newCategoryServiceDB(t)
	repo := repository.NewCategoryRepo(db)
	relatedRepo := repository.NewRelatedCategoryRepo(db)
	svc := NewCategoryService(repo, relatedRepo)

	c := &model.Category{PortalID: 1, AccountID: 1, Name: "Orig"}
	require.NoError(t, db.Create(c).Error)

	updated, err := svc.Update(context.Background(), c.ID, &UpdateCategoryRequest{
		Name:        strPtrVal("Updated"),
		Description: strPtrVal("New desc"),
	})
	require.NoError(t, err)
	assert.Equal(t, "Updated", updated.Name)
}

func TestCategoryService_Delete_Cov5(t *testing.T) {
	db := newCategoryServiceDB(t)
	repo := repository.NewCategoryRepo(db)
	relatedRepo := repository.NewRelatedCategoryRepo(db)
	svc := NewCategoryService(repo, relatedRepo)

	c := &model.Category{PortalID: 1, AccountID: 1, Name: "Del"}
	require.NoError(t, db.Create(c).Error)

	require.NoError(t, svc.Delete(context.Background(), c.ID))
}

func TestCategoryService_ListByPortal(t *testing.T) {
	db := newCategoryServiceDB(t)
	repo := repository.NewCategoryRepo(db)
	relatedRepo := repository.NewRelatedCategoryRepo(db)
	svc := NewCategoryService(repo, relatedRepo)

	require.NoError(t, db.Create(&model.Category{PortalID: 1, AccountID: 1, Name: "C1"}).Error)
	require.NoError(t, db.Create(&model.Category{PortalID: 1, AccountID: 1, Name: "C2"}).Error)

	list, total, err := svc.ListByPortalID(context.Background(), 1, "en", 1, 10)
	require.NoError(t, err)
	assert.Equal(t, int64(2), total)
	assert.Len(t, list, 2)
}

// ============================================================
// DraftMessageService tests
// ============================================================

func newDraftMessageServiceDB(t *testing.T) *gorm.DB {
	db := newSimpleServiceTestDB(t)
	if err := db.AutoMigrate(&model.DraftMessage{}); err != nil {
		panic(err)
	}
	return db
}

func TestDraftMessageService_Ready(t *testing.T) {
	db := newDraftMessageServiceDB(t)
	repo := repository.NewDraftMessageRepo(db)
	convRepo := repository.NewConversationRepo(db)
	svc := NewDraftMessageService(repo, convRepo)
	assert.True(t, svc.Ready())
}

func TestDraftMessageService_Set(t *testing.T) {
	db := newDraftMessageServiceDB(t)
	repo := repository.NewDraftMessageRepo(db)
	convRepo := repository.NewConversationRepo(db)
	svc := NewDraftMessageService(repo, convRepo)

	require.NoError(t, db.Create(&model.Conversation{AccountID: 1, Status: "open"}).Error)

	err := svc.SetConversationDraft(context.Background(), 1, 1, 1, "draft content")
	require.NoError(t, err)
}

func TestDraftMessageService_ShowConversationDraft(t *testing.T) {
	db := newDraftMessageServiceDB(t)
	repo := repository.NewDraftMessageRepo(db)
	convRepo := repository.NewConversationRepo(db)
	svc := NewDraftMessageService(repo, convRepo)

	require.NoError(t, db.Create(&model.Conversation{AccountID: 1, Status: "open"}).Error)
	require.NoError(t, svc.SetConversationDraft(context.Background(), 1, 1, 1, "draft content"))

	draft, err := svc.ShowConversationDraft(context.Background(), 1, 1)
	require.NoError(t, err)
	assert.Equal(t, "draft content", draft.Content)
}

func TestDraftMessageService_ShowConversationDraft_NotFound(t *testing.T) {
	db := newDraftMessageServiceDB(t)
	repo := repository.NewDraftMessageRepo(db)
	convRepo := repository.NewConversationRepo(db)
	svc := NewDraftMessageService(repo, convRepo)

	_, err := svc.ShowConversationDraft(context.Background(), 1, 99999)
	require.Error(t, err)
}

func TestDraftMessageService_Delete(t *testing.T) {
	db := newDraftMessageServiceDB(t)
	repo := repository.NewDraftMessageRepo(db)
	convRepo := repository.NewConversationRepo(db)
	svc := NewDraftMessageService(repo, convRepo)

	require.NoError(t, db.Create(&model.Conversation{AccountID: 1, Status: "open"}).Error)
	require.NoError(t, svc.SetConversationDraft(context.Background(), 1, 1, 1, "draft content"))
	require.NoError(t, svc.DeleteConversationDraft(context.Background(), 1, 1))
}

func TestDraftMessageService_List(t *testing.T) {
	db := newDraftMessageServiceDB(t)
	repo := repository.NewDraftMessageRepo(db)
	convRepo := repository.NewConversationRepo(db)
	svc := NewDraftMessageService(repo, convRepo)

	require.NoError(t, db.Create(&model.Conversation{AccountID: 1, Status: "open"}).Error)
	require.NoError(t, svc.SetConversationDraft(context.Background(), 1, 1, 1, "draft1"))

	list, err := svc.List(context.Background(), 1, 1, 1)
	require.NoError(t, err)
	assert.Len(t, list, 1)
}

// ============================================================
// CaptainPreferenceService tests
// ============================================================

func newCaptainPreferenceServiceDB(t *testing.T) *gorm.DB {
	db := newSimpleServiceTestDB(t)
	if err := db.AutoMigrate(&model.CaptainPreference{}); err != nil {
		panic(err)
	}
	return db
}

func TestCaptainPreferenceService_GetConfig(t *testing.T) {
	db := newCaptainPreferenceServiceDB(t)
	repo := repository.NewCaptainPreferenceRepo(db)
	accountRepo := repository.NewAccountRepo(db)
	svc := NewCaptainPreferenceService(repo, accountRepo)

	require.NoError(t, db.Create(&model.Account{Name: "TestAcc"}).Error)

	// Should return default config when no preference exists
	cfg, err := svc.GetConfig(context.Background(), 1)
	require.NoError(t, err)
	assert.NotNil(t, cfg)
}

func TestCaptainPreferenceService_UpdateConfig(t *testing.T) {
	db := newCaptainPreferenceServiceDB(t)
	repo := repository.NewCaptainPreferenceRepo(db)
	accountRepo := repository.NewAccountRepo(db)
	svc := NewCaptainPreferenceService(repo, accountRepo)

	require.NoError(t, db.Create(&model.Account{Name: "TestAcc"}).Error)

	cfg, err := svc.UpdateConfig(context.Background(), 1, &UpdateCaptainConfigRequest{
		CaptainFeatures: map[string]bool{"captain_enabled": true},
	})
	require.NoError(t, err)
	assert.NotNil(t, cfg)
}

func TestCaptainPreferenceService_GetConfig_AfterUpdate(t *testing.T) {
	db := newCaptainPreferenceServiceDB(t)
	repo := repository.NewCaptainPreferenceRepo(db)
	accountRepo := repository.NewAccountRepo(db)
	svc := NewCaptainPreferenceService(repo, accountRepo)

	require.NoError(t, db.Create(&model.Account{Name: "TestAcc"}).Error)

	_, err := svc.UpdateConfig(context.Background(), 1, &UpdateCaptainConfigRequest{
		CaptainFeatures: map[string]bool{"captain_enabled": true},
	})
	require.NoError(t, err)

	cfg, err := svc.GetConfig(context.Background(), 1)
	require.NoError(t, err)
	assert.NotNil(t, cfg)
}

// strPtr helper (boolPtr is defined in coverage_test.go)
func strPtrVal(s string) *string { return &s }