package stats_test

import (
	"testing"

	"git.eeqj.de/sneak/neoirc/internal/stats"
)

func TestNew(t *testing.T) {
	t.Parallel()

	tracker := stats.New()
	if tracker == nil {
		t.Fatal("expected non-nil tracker")
	}

	if tracker.ConnectionsSinceBoot() != 0 {
		t.Errorf(
			"expected 0 connections, got %d",
			tracker.ConnectionsSinceBoot(),
		)
	}

	if tracker.SessionsSinceBoot() != 0 {
		t.Errorf(
			"expected 0 sessions, got %d",
			tracker.SessionsSinceBoot(),
		)
	}

	if tracker.MessagesSinceBoot() != 0 {
		t.Errorf(
			"expected 0 messages, got %d",
			tracker.MessagesSinceBoot(),
		)
	}
}

func TestIncrConnections(t *testing.T) {
	t.Parallel()

	tracker := stats.New()

	tracker.IncrConnections()
	tracker.IncrConnections()
	tracker.IncrConnections()

	got := tracker.ConnectionsSinceBoot()
	if got != 3 {
		t.Errorf(
			"expected 3 connections, got %d", got,
		)
	}
}

func TestIncrSessions(t *testing.T) {
	t.Parallel()

	tracker := stats.New()

	tracker.IncrSessions()
	tracker.IncrSessions()

	got := tracker.SessionsSinceBoot()
	if got != 2 {
		t.Errorf(
			"expected 2 sessions, got %d", got,
		)
	}
}

func TestIncrMessages(t *testing.T) {
	t.Parallel()

	tracker := stats.New()

	tracker.IncrMessages()

	got := tracker.MessagesSinceBoot()
	if got != 1 {
		t.Errorf(
			"expected 1 message, got %d", got,
		)
	}
}

func TestCountersAreIndependent(t *testing.T) {
	t.Parallel()

	tracker := stats.New()

	tracker.IncrConnections()
	tracker.IncrSessions()
	tracker.IncrMessages()
	tracker.IncrMessages()

	if tracker.ConnectionsSinceBoot() != 1 {
		t.Errorf(
			"expected 1 connection, got %d",
			tracker.ConnectionsSinceBoot(),
		)
	}

	if tracker.SessionsSinceBoot() != 1 {
		t.Errorf(
			"expected 1 session, got %d",
			tracker.SessionsSinceBoot(),
		)
	}

	if tracker.MessagesSinceBoot() != 2 {
		t.Errorf(
			"expected 2 messages, got %d",
			tracker.MessagesSinceBoot(),
		)
	}
}