package ds

import (
	"context"

	"github.com/oklog/ulid/v2"
	"github.com/timetracker/backend/internal/domain/entities"
	"github.com/timetracker/backend/internal/domain/persistence"
	"github.com/timetracker/backend/internal/infrastructure/persistence/db/dbo"
	"gorm.io/gorm"
)

type UserDatasource struct {
	db *gorm.DB
}

func NewUserDatasource(db *gorm.DB) persistence.UserDatasource {
	return &UserDatasource{db: db}
}

func (r *UserDatasource) Get(ctx context.Context, id ulid.ULID) (*entities.User, error) {
	var userDBO dbo.UserDBO
	if err := r.db.WithContext(ctx).First(&userDBO, "id = ?", id).Error; err != nil {
		return nil, err
	}

	user := &entities.User{
		EntityBase: entities.EntityBase{
			ID:        userDBO.ID,
			CreatedAt: userDBO.CreatedAt,
			UpdatedAt: userDBO.UpdatedAt,
		},
		Username:   userDBO.Username,
		Password:   userDBO.Password,
		Role:       userDBO.Role,
		CompanyID:  userDBO.CompanyID,
		HourlyRate: userDBO.HourlyRate,
	}

	return user, nil
}

func (r *UserDatasource) Create(ctx context.Context, user *entities.User) error {
	userDBO := dbo.UserDBO{
		ID:         user.ID,
		CreatedAt:  user.CreatedAt,
		UpdatedAt:  user.UpdatedAt,
		Username:   user.Username,
		Password:   user.Password,
		Role:       user.Role,
		CompanyID:  user.CompanyID,
		HourlyRate: user.HourlyRate,
	}

	return r.db.WithContext(ctx).Create(&userDBO).Error
}

func (r *UserDatasource) Update(ctx context.Context, user *entities.User) error {
	userDBO := dbo.UserDBO{
		ID:         user.ID,
		CreatedAt:  user.CreatedAt,
		UpdatedAt:  user.UpdatedAt,
		Username:   user.Username,
		Password:   user.Password,
		Role:       user.Role,
		CompanyID:  user.CompanyID,
		HourlyRate: user.HourlyRate,
	}

	return r.db.WithContext(ctx).Save(&userDBO).Error
}

func (r *UserDatasource) Delete(ctx context.Context, id ulid.ULID) error {
	return r.db.WithContext(ctx).Delete(&dbo.UserDBO{}, "id = ?", id).Error
}

func (r *UserDatasource) GetByUsername(ctx context.Context, username string) (*entities.User, error) {
	var userDBO dbo.UserDBO
	if err := r.db.WithContext(ctx).Where("username = ?", username).First(&userDBO).Error; err != nil {
		return nil, err
	}

	user := &entities.User{
		EntityBase: entities.EntityBase{
			ID:        userDBO.ID,
			CreatedAt: userDBO.CreatedAt,
			UpdatedAt: userDBO.UpdatedAt,
		},
		Username:   userDBO.Username,
		Password:   userDBO.Password,
		Role:       userDBO.Role,
		CompanyID:  userDBO.CompanyID,
		HourlyRate: userDBO.HourlyRate,
	}

	return user, nil
}