package core

import (
	"context"
	"fmt"

	"git.loyso.art/frx/eway/internal/entity"
)

type GetCategoryParams struct {
	ID   int64
	Name string
}
type GetCategoryResult struct {
	Category entity.Category
}

type GetCategoryAction Action[GetCategoryParams, GetCategoryResult]

type getCategoryAction struct {
	baseAction
}

func NewGetCategoryAction(env *Env) ActionDecorator[GetCategoryParams, GetCategoryResult, GetCategoryAction] {
	ba := newBaseAction(env)

	action := &getCategoryAction{
		baseAction: ba,
	}

	return applyDecorators(action)
}

func (a *getCategoryAction) Do(ctx context.Context, params GetCategoryParams) (result GetCategoryResult, err error) {
	id := params.ID
	if params.Name != "" {
		id, err = a.env.mapper.CategoryNameToID(ctx, params.Name)
		if err != nil {
			return result, fmt.Errorf("resolving category id: %w", err)
		}
	}

	result.Category, err = a.env.repository.Category().Get(ctx, id)
	if err != nil {
		return result, fmt.Errorf("getting category: %w", err)
	}

	return result, nil
}