package cmd

import (
	"fmt"
	"os"

	"git.jnss.me/joakim/opal/internal/engine"
	"github.com/spf13/cobra"
)

var countCmd = &cobra.Command{
	Use:   "count [filter...]",
	Short: "Count matching tasks",
	Run: func(cmd *cobra.Command, args []string) {
		if err := countTasks(args); err != nil {
			fmt.Fprintf(os.Stderr, "Error: %v\n", err)
			os.Exit(1)
		}
	},
}

func countTasks(args []string) error {
	var filter *engine.Filter
	var err error

	if len(args) == 0 {
		filter = engine.DefaultFilter()
	} else {
		filter, err = engine.ParseFilter(args)
		if err != nil {
			return err
		}
	}

	tasks, err := engine.GetTasks(filter)
	if err != nil {
		return err
	}

	fmt.Printf("%d\n", len(tasks))
	return nil
}