using System.Collections;
using System.Collections.Generic;
using NUnit.Framework;
using UnityEngine;
using UnityEngine.TestTools;
using KairoEngine.Stats;

namespace KairoEngine.Stats.EditorTests
{
    public class StatsControllerTests
    {
        private StatsController controller;

        [SetUp]
        public void Setup()
        {
            controller = new StatsController();
            StatGroup statGroup = ScriptableObject.CreateInstance("StatGroup") as StatGroup;
            statGroup.statTemplates.Add(CreateStatTemplate().Setup("Endurance", "Stamina and HP", 0, 0, 10, "", "maxValue / 2", "", ""));
            statGroup.statTemplates.Add(CreateStatTemplate().Setup("Hitpoints", "damage points", 0, 0, 0, "", "maxValue", "", "s('Endurance') * 10"));
            controller.StatGroup = statGroup;
        }

        private StatTemplate CreateStatTemplate() => ScriptableObject.CreateInstance("StatTemplate") as StatTemplate;

        [TearDown]
        public void TearDown()
        {
            controller = null;
        }

        [Test]
        public void StatsController_New_Controller_Test()
        {
            Assert.NotNull(controller);
        }

        [Test]
        public void StatsController_GetStatValue_Test()
        {
            int n = controller.GetStatValue("Hitpoints");
            Assert.AreEqual(50, n);
        }

        [Test]
        public void StatsController_GetStat_NotNull_Test()
        {
            Assert.NotNull(controller.GetStat("Hitpoints"));
        }

        [Test]
        public void StatsController_GetStat_WrongName_Test()
        {
            Assert.IsNull(controller.GetStat("HitpointZ"));
        }

        [Test]
        public void StatConstroller_GetStat_With_Modifier_Test()
        {
            Stat stat = controller.GetStat("Endurance");
            stat.modifiers.Add(new StatModifier("+", 1, "", "", "Endurance", "Vitality Ring"));
            int n = stat.value;
            Assert.AreEqual(6, n);
            Assert.AreEqual(60, controller.GetStat("Hitpoints").maxValue);
        }

        [Test]
        public void StatConstroller_GetStat_With_Multiple_Modifier_Test()
        {
            Stat stat = controller.GetStat("Endurance");
            stat.modifiers.Add(new StatModifier("+", 1, "", "", "Endurance", "Vitality Ring"));
            stat.modifiers.Add(new StatModifier("-", 1, "", "", "Endurance", "Hangover"));
            stat.modifiers.Add(new StatModifier("+", 1, "", "", "Endurance", "Well rested"));
            stat.modifiers.Add(new StatModifier("+", 1, "", "", "Endurance", "Well fed"));
            int n = stat.value;
            Assert.AreEqual(7, n);
            Assert.AreEqual(70, controller.GetStat("Hitpoints").maxValue);
        }

        [Test]
        public void StatConstroller_GetStat_With_MaxValue_Modifier_Test()
        {
            controller.GetStat("Endurance").modifiers.Add(new StatModifier("+", 1, "", "", "Endurance", "Well rested"));
            controller.GetStat("Endurance").modifiers.Add(new StatModifier("+", 1, "", "", "Endurance", "Vitality Ring"));
            Stat stat = controller.GetStat("Hitpoints");
            stat.modifiers.Add(new StatModifier("+", 20, "", "max", "Hitpoints", "Healthy"));
            Assert.AreEqual(90, stat.maxValue);
        }

        [Test]
        public void StatConstroller_GetStat_With_MinValue_Modifier_Test()
        {
            controller.GetStat("Endurance").modifiers.Add(new StatModifier("+", 1, "", "", "Endurance", "Well rested"));
            controller.GetStat("Endurance").modifiers.Add(new StatModifier("+", 1, "", "", "Endurance", "Vitality Ring"));
            Stat stat = controller.GetStat("Hitpoints");
            stat.modifiers.Add(new StatModifier("-", 20, "", "min", "Hitpoints", "Death Defiance"));
            Assert.AreEqual(-20, stat.minValue);
        }

        [Test]
        public void StatConstroller_GetStat_With_Percentage_Modifier_Test()
        {
            Stat stat = controller.GetStat("Hitpoints");
            stat.modifiers.Add(new StatModifier("+", 100, "%", "max", "Hitpoints", "Healthy"));
            Assert.AreEqual(100, stat.maxValue);
        }

        [Test]
        public void StatConstroller_Add_StatModifier()
        {
            Stat stat = controller.GetStat("Endurance");
            StatModifier modifier = new StatModifier("+", 1, "", "", "Endurance", "Vitality Ring");
            Assert.AreEqual(false, stat.modifiers.HasModifier(modifier));
            stat.modifiers.Add(modifier);
            Assert.AreEqual(true, stat.modifiers.HasModifier(modifier));
        }

        [Test]
        public void StatConstroller_Remove_StatModifier()
        {
            Stat stat = controller.GetStat("Endurance");
            StatModifier modifier = new StatModifier("+", 1, "", "", "Endurance", "Vitality Ring");    
            stat.modifiers.Add(modifier);
            Assert.AreEqual(true, stat.modifiers.HasModifier(modifier));
            stat.modifiers.Remove(modifier);
            Assert.AreEqual(false, stat.modifiers.HasModifier(modifier));
        }

    }
}