package command

import (
	"context"
	"time"

	"gitoa.ru/go-4devs/config"
	"gitoa.ru/go-4devs/config/definition/option"
	"gitoa.ru/go-4devs/config/validator"
	"gitoa.ru/go-4devs/config/value"
	"gitoa.ru/go-4devs/console"
	"gitoa.ru/go-4devs/console/command"
	"gitoa.ru/go-4devs/console/output"
)

const defaultTimeout = time.Second * 30

// Long example of a command that takes a long time to run.
func Long() command.Command {
	return command.New("fdevs:command:long", "long command description", LongExecute, command.Configure(LongConfigure))
}

func LongExecute(ctx context.Context, in config.Provider, out output.Output) error {
	timeout := console.ReadValue(ctx, in, "timeout").Duration()
	timer := time.NewTimer(timeout)

	ticker := time.NewTicker(time.Second)
	defer ticker.Stop()

	for {
		select {
		case t := <-ticker.C:
			out.Println(ctx, "ticker: <info>", t, "</info>")
		case <-timer.C:
			out.Println(ctx, "<error>stop timer</error>")

			return nil
		case <-ctx.Done():
			out.Println(ctx, "<info>cancel context</info>")

			return nil
		}
	}
}

func LongConfigure(_ context.Context, def config.Definition) error {
	def.Add(option.Duration("timeout", "set duration run command",
		option.Default(value.New(defaultTimeout)),
		option.Short('t'),
		validator.Valid(validator.NotBlank),
	))

	return nil
}