package testutil

import (
	"context"
	"strings"
	"tercul/internal/domain"

	"gorm.io/gorm"
)

// MockUserRepository is a mock implementation of the UserRepository interface.
type MockUserRepository struct {
	Users []*domain.User
}

// NewMockUserRepository creates a new MockUserRepository.
func NewMockUserRepository() *MockUserRepository {
	return &MockUserRepository{Users: []*domain.User{}}
}

// Create adds a new user to the mock repository.
func (m *MockUserRepository) Create(ctx context.Context, user *domain.User) error {
	user.ID = uint(len(m.Users) + 1)
	m.Users = append(m.Users, user)
	return nil
}

// GetByID retrieves a user by their ID from the mock repository.
func (m *MockUserRepository) GetByID(ctx context.Context, id uint) (*domain.User, error) {
	for _, u := range m.Users {
		if u.ID == id {
			return u, nil
		}
	}
	return nil, gorm.ErrRecordNotFound
}

// FindByUsername retrieves a user by their username from the mock repository.
func (m *MockUserRepository) FindByUsername(ctx context.Context, username string) (*domain.User, error) {
	for _, u := range m.Users {
		if strings.EqualFold(u.Username, username) {
			return u, nil
		}
	}
	return nil, gorm.ErrRecordNotFound
}

// FindByEmail retrieves a user by their email from the mock repository.
func (m *MockUserRepository) FindByEmail(ctx context.Context, email string) (*domain.User, error) {
	for _, u := range m.Users {
		if strings.EqualFold(u.Email, email) {
			return u, nil
		}
	}
	return nil, gorm.ErrRecordNotFound
}

// ListByRole retrieves users by their role from the mock repository.
func (m *MockUserRepository) ListByRole(ctx context.Context, role domain.UserRole) ([]domain.User, error) {
	var users []domain.User
	for _, u := range m.Users {
		if u.Role == role {
			users = append(users, *u)
		}
	}
	return users, nil
}

// The rest of the BaseRepository methods can be stubbed out or implemented as needed.
func (m *MockUserRepository) CreateInTx(ctx context.Context, tx *gorm.DB, entity *domain.User) error {
	return m.Create(ctx, entity)
}
func (m *MockUserRepository) GetByIDWithOptions(ctx context.Context, id uint, options *domain.QueryOptions) (*domain.User, error) {
	return m.GetByID(ctx, id)
}
func (m *MockUserRepository) Update(ctx context.Context, entity *domain.User) error {
	for i, u := range m.Users {
		if u.ID == entity.ID {
			m.Users[i] = entity
			return nil
		}
	}
	return gorm.ErrRecordNotFound
}
func (m *MockUserRepository) UpdateInTx(ctx context.Context, tx *gorm.DB, entity *domain.User) error {
	return m.Update(ctx, entity)
}
func (m *MockUserRepository) Delete(ctx context.Context, id uint) error {
	for i, u := range m.Users {
		if u.ID == id {
			m.Users = append(m.Users[:i], m.Users[i+1:]...)
			return nil
		}
	}
	return gorm.ErrRecordNotFound
}
func (m *MockUserRepository) DeleteInTx(ctx context.Context, tx *gorm.DB, id uint) error {
	return m.Delete(ctx, id)
}
func (m *MockUserRepository) List(ctx context.Context, page, pageSize int) (*domain.PaginatedResult[domain.User], error) {
	panic("not implemented")
}
func (m *MockUserRepository) ListWithOptions(ctx context.Context, options *domain.QueryOptions) ([]domain.User, error) {
	panic("not implemented")
}
func (m *MockUserRepository) ListAll(ctx context.Context) ([]domain.User, error) {
	var users []domain.User
    for _, u := range m.Users {
        users = append(users, *u)
    }
    return users, nil
}
func (m *MockUserRepository) Count(ctx context.Context) (int64, error) {
	return int64(len(m.Users)), nil
}
func (m *MockUserRepository) CountWithOptions(ctx context.Context, options *domain.QueryOptions) (int64, error) {
	panic("not implemented")
}
func (m *MockUserRepository) FindWithPreload(ctx context.Context, preloads []string, id uint) (*domain.User, error) {
	return m.GetByID(ctx, id)
}
func (m *MockUserRepository) GetAllForSync(ctx context.Context, batchSize, offset int) ([]domain.User, error) {
	panic("not implemented")
}
func (m *MockUserRepository) Exists(ctx context.Context, id uint) (bool, error) {
	_, err := m.GetByID(ctx, id)
	return err == nil, nil
}
func (m *MockUserRepository) BeginTx(ctx context.Context) (*gorm.DB, error) {
	return nil, nil
}
func (m *MockUserRepository) WithTx(ctx context.Context, fn func(tx *gorm.DB) error) error {
	return fn(nil)
}