/******************************************************************************
 * Copyright (C) Ultraleap, Inc. 2011-2021.                                   *
 *                                                                            *
 * Use subject to the terms of the Apache License 2.0 available at            *
 * http://www.apache.org/licenses/LICENSE-2.0, or another agreement           *
 * between Ultraleap and you, your company or other organization.             *
 ******************************************************************************/

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using UnityEngine;
using UnityEngine.Assertions;

public static class AssertHelper
{

    [Conditional("UNITY_EDITOR")]
    public static void AssertRuntimeOnly(string message = null)
    {
        message = message ?? "Assert failed because game was not in Play Mode.";
        Assert.IsTrue(Application.isPlaying, message);
    }

    [Conditional("UNITY_EDITOR")]
    public static void AssertEditorOnly(string message = null)
    {
        message = message ?? "Assert failed because game was in Play Mode.";
        Assert.IsFalse(Application.isPlaying, message);
    }

    [Conditional("UNITY_ASSERTIONS")]
    public static void Implies(bool condition, bool result, string message = "")
    {
        if (condition)
        {
            Assert.IsTrue(result, message);
        }
    }

    [Conditional("UNITY_ASSERTIONS")]
    public static void Implies(bool condition, Func<bool> result, string message = "")
    {
        if (condition)
        {
            Implies(condition, result(), message);
        }
    }

    [Conditional("UNITY_ASSERTIONS")]
    public static void Implies(string conditionName, bool condition, string resultName, bool result)
    {
        Implies(condition, result, "When " + conditionName + " is true, " + resultName + " must always be true.");
    }

    [Conditional("UNITY_ASSERTIONS")]
    public static void Implies(string conditionName, bool condition, string resultName, Func<bool> result)
    {
        if (condition)
        {
            Implies(conditionName, condition, resultName, result());
        }
    }

    [Conditional("UNITY_ASSERTIONS")]
    public static void Contains<T>(T value, IEnumerable<T> collection, string message = "")
    {
        if (!collection.Contains(value))
        {
            string result = "The value " + value + " was not found in the collection [";

            bool isFirst = true;
            foreach (T v in collection)
            {
                if (!isFirst)
                {
                    result += ", ";
                    isFirst = false;
                }

                result += v.ToString();
            }

            result += "]\n" + message;
            Assert.IsTrue(false, result);
        }
    }
}