/*
  Pominal
  Copyright (C) 2020  Daniel Anglin

  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

package main

import (
	"reflect"
	"testing"
	"time"

	"github.com/rivo/tview"
)

const success = "\u2713"
const failure = "\u2717"

// TestNewPominal validates the factory function for generating new
// Pominal values
func TestNewPominal(t *testing.T) {
	t.Log("Given the need to test the creation of a new Pominal instance.")
	{
		for _, p := range newPominalTestCases {
			testFunc := func(t *testing.T) {
				t.Log(p.description)
				res := NewPominal(
					p.workSession,
					p.shortBreakSession,
					p.longBreakSession,
					p.maxWorkSessions,
				)
				if !reflect.DeepEqual(res, p.expectedPominal) {
					t.Errorf("%s\tUnexpected Pominal created. Expected %v, received %v.", failure, p.expectedPominal, res)
				} else {
					t.Logf("%s\tTest passed.", success)
				}
			}
			t.Run(p.name, testFunc)
		}
	}
}

// TestRun validates the Pominal runtime. This test creates a new
// Pominal instance and executes the runtime in a separate goroutine.
// To ease testing the work, short break and long break timers are equal.
// Before the sub-tests are run there is a second delay to allow the
// runtime to initialise. The test then checks that the correct
// session label, work session number and pominal cycle number
// are set for each session. This test runs for exactly one
// pominal cycle.
func TestRun(t *testing.T) {
	pominal := NewPominal(60, 60, 60, 2)
	defer pominal.Stop()

	// create the most basic text view for the info and timer
	// views since we are not testing the user interface.
	infoUI := tview.NewTextView()
	timerUI := tview.NewTextView()

	go pominal.Run(infoUI, timerUI)

	time.Sleep(1 * time.Second)

	t.Log("Given the need to test the Pominal runtime execution.")
	{
		for _, s := range sessionsTestCases {
			testFunc := func(t *testing.T) {
				t.Log(s.description)
				if pominal.workSession != s.expectedWorkSession {
					t.Errorf("%s\tUnexpected work session integer returned: expected %d, got %d", failure, s.expectedWorkSession, pominal.workSession)
				} else {
					t.Logf("%s\tExpected work session integer returned.", success)
				}
				if pominal.cycle != s.expectedCycle {
					t.Errorf("%s\tUnexpected pominal cycle integer returned: expected %d, got %d", failure, s.expectedCycle, pominal.cycle)
				} else {
					t.Logf("%s\tExpected pominal cycle integer returned.", success)
				}
				if pominal.label != s.expectedLabel {
					t.Errorf("%s\tUnexpected session label returned: expected %s, got %s", failure, s.expectedLabel, pominal.label)
				} else {
					t.Logf("%s\tExpected session label returned.", success)
				}
			}
			t.Run(s.name, testFunc)
			time.Sleep(65 * time.Second)
		}
	}
}