package service

import (
	"context"

	"code.nochebuena.dev/go/todo-api/internal/domain"
	"code.nochebuena.dev/go/todo-api/internal/repository"
)

// CreateTodoRequest is the input for creating a new todo.
type CreateTodoRequest struct {
	Title string `json:"title" validate:"required,min=1,max=255"`
}

// TodoService handles todo business logic.
type TodoService interface {
	FindAll(ctx context.Context) ([]domain.Todo, error)
	Create(ctx context.Context, req CreateTodoRequest) (domain.Todo, error)
}

type todoService struct {
	repo repository.TodoRepository
}

// NewTodoService returns a TodoService backed by the given repository.
func NewTodoService(repo repository.TodoRepository) TodoService {
	return &todoService{repo: repo}
}

func (s *todoService) FindAll(ctx context.Context) ([]domain.Todo, error) {
	return s.repo.FindAll(ctx)
}

func (s *todoService) Create(ctx context.Context, req CreateTodoRequest) (domain.Todo, error) {
	return s.repo.Create(ctx, domain.Todo{Title: req.Title})
}