package service

import (
	"context"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"
	"gorm.io/driver/sqlite"
	"gorm.io/gorm"
	"gorm.io/gorm/logger"

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

func setupIntegrationHookTestDB(t *testing.T) (*repository.IntegrationHookRepo, *repository.IntegrationAppRepo) {
	t.Helper()
	db, err := gorm.Open(sqlite.Open("file::memory:"), &gorm.Config{
		Logger: logger.Default.LogMode(logger.Silent),
	})
	require.NoError(t, err)
	require.NoError(t, db.AutoMigrate(
		&model.Account{},
		&model.User{},
		&model.AccountUser{},
		&model.Inbox{},
		&model.IntegrationHook{},
		&model.IntegrationApp{},
	))
	return repository.NewIntegrationHookRepo(db), repository.NewIntegrationAppRepo(db)
}

func TestIntegrationHookService_Create(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	req := CreateHookRequest{
		HookType: "webhook",
		URL:      "https://example.com/webhook",
	}
	hook, err := svc.Create(ctx, 1, req)
	require.NoError(t, err)
	assert.Equal(t, model.HookTypeWebhook, hook.HookType)
	assert.Equal(t, "https://example.com/webhook", hook.URL)
	assert.Equal(t, uint(1), hook.AccountID)
}

func TestIntegrationHookService_Create_InvalidHookType(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	req := CreateHookRequest{
		HookType: "invalid_type",
		URL:      "https://example.com/hook",
	}
	_, err := svc.Create(ctx, 1, req)
	assert.Error(t, err, "should reject invalid hook type")
}

func TestIntegrationHookService_Create_Slack(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	req := CreateHookRequest{
		HookType: "slack",
		URL:      "https://slack.example.com/hook",
	}
	hook, err := svc.Create(ctx, 1, req)
	require.NoError(t, err)
	assert.Equal(t, model.HookTypeSlack, hook.HookType)
}

func TestIntegrationHookService_Get(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	req := CreateHookRequest{
		HookType: "webhook",
		URL:      "https://example.com/get-test",
	}
	hook, err := svc.Create(ctx, 1, req)
	require.NoError(t, err)

	found, err := svc.Get(ctx, hook.ID)
	require.NoError(t, err)
	assert.Equal(t, hook.ID, found.ID)
}

func TestIntegrationHookService_List(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	for _, ht := range []string{"webhook", "slack"} {
		req := CreateHookRequest{
			HookType: ht,
			URL:      "https://example.com/" + ht,
		}
		_, err := svc.Create(ctx, 1, req)
		require.NoError(t, err)
	}

	hooks, total, err := svc.List(ctx, 1, 0, 10)
	require.NoError(t, err)
	assert.Equal(t, int64(2), total)
	assert.Len(t, hooks, 2)
}

func TestIntegrationHookService_Update(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	req := CreateHookRequest{
		HookType: "webhook",
		URL:      "https://example.com/old-url",
	}
	hook, err := svc.Create(ctx, 1, req)
	require.NoError(t, err)

	updateReq := UpdateHookRequest{
		URL:    "https://example.com/new-url",
		Status: "inactive",
	}
	updated, err := svc.Update(ctx, hook.ID, updateReq)
	require.NoError(t, err)
	assert.Equal(t, "https://example.com/new-url", updated.URL)
	assert.Equal(t, model.HookStatusInactive, updated.Status)
}

func TestIntegrationHookService_Delete(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	req := CreateHookRequest{
		HookType: "webhook",
		URL:      "https://example.com/to-delete",
	}
	hook, err := svc.Create(ctx, 1, req)
	require.NoError(t, err)

	require.NoError(t, svc.Delete(ctx, hook.ID))

	_, err = svc.Get(ctx, hook.ID)
	assert.Error(t, err, "should not find deleted hook")
}

func TestIntegrationHookService_Create_WithInboxID(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	inboxID := uint(10)
	req := CreateHookRequest{
		HookType: "webhook",
		URL:      "https://example.com/inbox-hook",
		InboxID:  &inboxID,
	}
	hook, err := svc.Create(ctx, 1, req)
	require.NoError(t, err)
	assert.Equal(t, inboxID, *hook.InboxID)
}

func TestIntegrationHookService_Create_WithSettings(t *testing.T) {
	hookRepo, appRepo := setupIntegrationHookTestDB(t)
	svc := NewIntegrationHookService(hookRepo, appRepo, nil) // nil registry — webhook processing tests are separate
	ctx := context.Background()

	settings := map[string]interface{}{
		"channel": "#alerts",
		"notify":  true,
	}
	req := CreateHookRequest{
		HookType: "slack",
		URL:      "https://slack.example.com/hook",
		Settings: settings,
	}
	hook, err := svc.Create(ctx, 1, req)
	require.NoError(t, err)
	assert.NotNil(t, hook.Settings)
}