package biz

import (
	"context"
	"time"

	"github.com/guxuan/hailin_service/internal/mods/rbac/dal"
	"github.com/guxuan/hailin_service/internal/mods/rbac/schema"
	"github.com/guxuan/hailin_service/pkg/cachex"
	"github.com/guxuan/hailin_service/pkg/errors"
	"github.com/guxuan/hailin_service/pkg/util"
)

// Role management for RBAC
type Banner struct {
	Cache     cachex.Cacher
	Trans     *util.Trans
	BannerDAL *dal.Banner
}

// Query roles from the data access object based on the provided parameters and options.
func (a *Banner) Query(ctx context.Context, params schema.BannerQueryParam) (*schema.BannerQueryResult, error) {
	params.Pagination = true
	result, err := a.BannerDAL.Query(ctx, params, schema.BannerQueryOptions{
		QueryOptions: util.QueryOptions{
			OrderFields: []util.OrderByParam{
				{Field: "sequence", Direction: util.DESC},
			},
		},
	})
	if err != nil {
		return nil, err
	}
	return result, nil
}

// Get the specified role from the data access object.
func (a *Banner) Get(ctx context.Context, id string) (*schema.Banner, error) {
	banner, err := a.BannerDAL.Get(ctx, id)
	if err != nil {
		return nil, err
	} else if banner == nil {
		return nil, errors.NotFound("", "Banner not found")
	}

	return banner, nil
}

// Create a new role in the data access object.
func (a *Banner) Create(ctx context.Context, formItem *schema.BannerForm) (*schema.Banner, error) {

	banner := &schema.Banner{
		ID:        util.NewXID(),
		CreatedAt: time.Now(),
	}
	if err := formItem.FillTo(banner); err != nil {
		return nil, err
	}

	if err := a.BannerDAL.Create(ctx, banner); err != nil {
		return nil, err
	}

	return banner, nil
}

// Update the specified role in the data access object.
func (a *Banner) Update(ctx context.Context, id string, formItem *schema.BannerForm) error {
	banner, err := a.BannerDAL.Get(ctx, id)
	if err != nil {
		return err
	}

	if err := formItem.FillTo(banner); err != nil {
		return err
	}
	banner.UpdatedAt = time.Now()

	if err := a.BannerDAL.Update(ctx, banner); err != nil {
		return err
	}
	return nil
}

// Delete the specified role from the data access object.
func (a *Banner) Delete(ctx context.Context, id string) error {
	exists, err := a.BannerDAL.Exists(ctx, id)
	if err != nil {
		return err
	} else if !exists {
		return errors.NotFound("", "Role not found")
	}

	if err := a.BannerDAL.Delete(ctx, id); err != nil {
		return err
	}
	return nil

}