package main

import (
	"os/exec"
	"time"
)

// RefreshInterval is the frequency at which
// the display is updated.
const RefreshInterval = 800 * time.Millisecond

// Message is used internally for updating
// the display.
type Message struct {
	Start        time.Time
	Duration     time.Duration
	Stents       int
	CurrentStent int
}

// Task describes some activity
type Task struct {
	ID      int       `json:"id"`
	Message string    `json:"message"`
	Records []*Record `json:"records"`
	// Free-form tags associated with this task
	Tags []string `json:"tags"`
	// Number of iterations to perform the task
	stents   int
	duration time.Duration
}

// Record is a stetch of work performed on a
// specific task.
type Record struct {
	Start time.Time `json:"start"`
	End   time.Time `json:"end"`
}

// Prompter prompts a user with a message.
type Prompter interface {
	Prompt(string) error
}

// I3 implements a prompter for i3
type I3 struct{}

func (i *I3) Prompt(message string) error {
	_, err := exec.Command(
		"/bin/i3-nagbar",
		"-m",
		message,
	).Output()
	if err != nil {
		return err
	}
	return nil
}