package service_test

import (
	"context"
	"testing"

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

	"bugulma/backend/internal/domain"
	"bugulma/backend/internal/repository"
	"bugulma/backend/internal/service"
)

type OrganizationServiceTestSuite struct {
	suite.Suite
	db   *gorm.DB
	repo domain.OrganizationRepository
	svc  *service.OrganizationService
}

func (suite *OrganizationServiceTestSuite) SetupTest() {
	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{})
	suite.Require().NoError(err)

	// Migrate
	err = db.AutoMigrate(&domain.Organization{})
	suite.Require().NoError(err)

	suite.db = db
	suite.repo = repository.NewOrganizationRepository(db)
	suite.svc = service.NewOrganizationService(suite.repo, nil) // No graph repo for tests
}

func (suite *OrganizationServiceTestSuite) TearDownTest() {
	sqlDB, _ := suite.db.DB()
	sqlDB.Close()
}

func (suite *OrganizationServiceTestSuite) TestCreate() {
	req := service.CreateOrganizationRequest{
		Name:    "Test Org",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}

	org, err := suite.svc.Create(context.Background(), req)
	assert.NoError(suite.T(), err)
	assert.NotEmpty(suite.T(), org.ID)
	assert.Equal(suite.T(), "Test Org", org.Name)
	assert.Equal(suite.T(), domain.SubtypeCommercial, org.Subtype)
}

func (suite *OrganizationServiceTestSuite) TestGetByID() {
	req := service.CreateOrganizationRequest{
		Name:    "Test Org",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}
	created, err := suite.svc.Create(context.Background(), req)
	suite.Require().NoError(err)

	found, err := suite.svc.GetByID(context.Background(), created.ID)
	assert.NoError(suite.T(), err)
	assert.Equal(suite.T(), created.ID, found.ID)
	assert.Equal(suite.T(), "Test Org", found.Name)
}

func (suite *OrganizationServiceTestSuite) TestGetAll() {
	req1 := service.CreateOrganizationRequest{
		Name:    "Org 1",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}
	req2 := service.CreateOrganizationRequest{
		Name:    "Org 2",
		Sector:  domain.SectorRetail,
		Subtype: domain.SubtypeCommercial,
	}
	_, err := suite.svc.Create(context.Background(), req1)
	suite.Require().NoError(err)
	_, err = suite.svc.Create(context.Background(), req2)
	suite.Require().NoError(err)

	orgs, err := suite.svc.GetAll(context.Background())
	assert.NoError(suite.T(), err)
	assert.Len(suite.T(), orgs, 2)
}

func (suite *OrganizationServiceTestSuite) TestGetBySubtype() {
	req1 := service.CreateOrganizationRequest{
		Name:    "Org 1",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}
	req2 := service.CreateOrganizationRequest{
		Name:    "Org 2",
		Sector:  domain.SectorGovernment,
		Subtype: domain.SubtypeGovernment,
	}
	_, err := suite.svc.Create(context.Background(), req1)
	suite.Require().NoError(err)
	_, err = suite.svc.Create(context.Background(), req2)
	suite.Require().NoError(err)

	orgs, err := suite.svc.GetBySubtype(context.Background(), domain.SubtypeCommercial)
	assert.NoError(suite.T(), err)
	assert.Len(suite.T(), orgs, 1)
	assert.Equal(suite.T(), "Org 1", orgs[0].Name)
}

func (suite *OrganizationServiceTestSuite) TestGetBySector() {
	req1 := service.CreateOrganizationRequest{
		Name:    "Org 1",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}
	req2 := service.CreateOrganizationRequest{
		Name:    "Org 2",
		Sector:  domain.SectorRetail,
		Subtype: domain.SubtypeCommercial,
	}
	_, err := suite.svc.Create(context.Background(), req1)
	suite.Require().NoError(err)
	_, err = suite.svc.Create(context.Background(), req2)
	suite.Require().NoError(err)

	orgs, err := suite.svc.GetBySector(context.Background(), domain.SectorManufacturing)
	assert.NoError(suite.T(), err)
	assert.Len(suite.T(), orgs, 1)
	assert.Equal(suite.T(), "Org 1", orgs[0].Name)
}

func (suite *OrganizationServiceTestSuite) TestUpdate() {
	req := service.CreateOrganizationRequest{
		Name:    "Test Org",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}
	org, err := suite.svc.Create(context.Background(), req)
	suite.Require().NoError(err)

	org.Name = "Updated Org"
	err = suite.svc.Update(context.Background(), org)
	assert.NoError(suite.T(), err)

	found, err := suite.svc.GetByID(context.Background(), org.ID)
	assert.NoError(suite.T(), err)
	assert.Equal(suite.T(), "Updated Org", found.Name)
}

func (suite *OrganizationServiceTestSuite) TestDelete() {
	req := service.CreateOrganizationRequest{
		Name:    "Test Org",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}
	org, err := suite.svc.Create(context.Background(), req)
	suite.Require().NoError(err)

	err = suite.svc.Delete(context.Background(), org.ID)
	assert.NoError(suite.T(), err)

	_, err = suite.svc.GetByID(context.Background(), org.ID)
	assert.Error(suite.T(), err)
}

func (suite *OrganizationServiceTestSuite) TestGetByCertification() {
	req1 := service.CreateOrganizationRequest{
		Name:           "Org 1",
		Sector:         domain.SectorManufacturing,
		Subtype:        domain.SubtypeCommercial,
		Certifications: []string{"ISO 9001"},
	}
	req2 := service.CreateOrganizationRequest{
		Name:           "Org 2",
		Sector:         domain.SectorRetail,
		Subtype:        domain.SubtypeCommercial,
		Certifications: []string{"ISO 14001"},
	}
	_, err := suite.svc.Create(context.Background(), req1)
	suite.Require().NoError(err)
	_, err = suite.svc.Create(context.Background(), req2)
	suite.Require().NoError(err)

	orgs, err := suite.svc.GetByCertification(context.Background(), "ISO 9001")
	assert.NoError(suite.T(), err)
	assert.Len(suite.T(), orgs, 1)
	assert.Equal(suite.T(), "Org 1", orgs[0].Name)
}

func (suite *OrganizationServiceTestSuite) TestGetWithinRadius() {
	req1 := service.CreateOrganizationRequest{
		Name:      "Org 1",
		Sector:    domain.SectorManufacturing,
		Subtype:   domain.SubtypeCommercial,
		Latitude:  52.5200,
		Longitude: 13.4050,
	}
	req2 := service.CreateOrganizationRequest{
		Name:      "Org 2",
		Sector:    domain.SectorRetail,
		Subtype:   domain.SubtypeCommercial,
		Latitude:  60.0000, // Far away
		Longitude: 10.0000,
	}
	_, err := suite.svc.Create(context.Background(), req1)
	suite.Require().NoError(err)
	_, err = suite.svc.Create(context.Background(), req2)
	suite.Require().NoError(err)

	orgs, err := suite.svc.GetWithinRadius(context.Background(), 52.5200, 13.4050, 100.0) // 100km radius
	assert.NoError(suite.T(), err)
	assert.Len(suite.T(), orgs, 1)
	assert.Equal(suite.T(), "Org 1", orgs[0].Name)
}

func (suite *OrganizationServiceTestSuite) TestAddProduct() {
	req := service.CreateOrganizationRequest{
		Name:    "Test Org",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}
	org, err := suite.svc.Create(context.Background(), req)
	suite.Require().NoError(err)

	product := domain.ProductJSON{
		Name:     "Test Product",
		Category: "Industrial",
	}

	err = suite.svc.AddProduct(context.Background(), org.ID, product)
	assert.NoError(suite.T(), err)

	// Verify product was added
	found, err := suite.svc.GetByID(context.Background(), org.ID)
	assert.NoError(suite.T(), err)
	assert.NotNil(suite.T(), found.SellsProducts)
}

func (suite *OrganizationServiceTestSuite) TestAddService() {
	req := service.CreateOrganizationRequest{
		Name:    "Test Org",
		Sector:  domain.SectorManufacturing,
		Subtype: domain.SubtypeCommercial,
	}
	org, err := suite.svc.Create(context.Background(), req)
	suite.Require().NoError(err)

	svc := domain.ServiceJSON{
		Type:   "maintenance",
		Domain: "compressors",
	}

	err = suite.svc.AddService(context.Background(), org.ID, svc)
	assert.NoError(suite.T(), err)

	// Verify service was added
	found, err := suite.svc.GetByID(context.Background(), org.ID)
	assert.NoError(suite.T(), err)
	assert.NotNil(suite.T(), found.OffersServices)
}

func TestOrganizationServiceTestSuite(t *testing.T) {
	suite.Run(t, new(OrganizationServiceTestSuite))
}