using NUnit.Framework;
using System;
using System.Collections;
using System.IO;
using UnityEditor;
using UnityEngine;
using UnityEngine.TestTools;

/// <summary>
/// Test the ProgressGraph class
/// </summary>
[TestFixture]
public class ProgressGraphTests
{
    /// <summary>
    /// Wait time between scene transitions
    /// </summary>
    private const float WAIT_TIME = 0.2f;

    /// <summary>
    /// Setup the ProgressGraph tests
    /// </summary>
    private IEnumerator Setup_ProgressGraph(int amount, Func<int, int> f)
    {
        string path = $"{Application.persistentDataPath}/wesign_unit_test.json";
        string score = "";
        for (int i = 0; i < amount; i++)
        {
            score += $"{{\"scoreValue\":{f(i)},\"time\":\"19/04/2023 22:32:39\"}}";
            if (i < amount - 1)
                score += ",";
        }

        string minigame = $"{{\"entries\":[],\"minigameIndex\":1,\"latestScores\":[{score}],\"highestScores\":[{score}]}}";
        string oneUser = $"{{\"version\":1027,\"users\":[{{\"entries\":[],\"username\":\"Tester0\",\"avatarIndex\":0,\"playtime\":0.0,\"minigames\":[{minigame}],\"courses\":[]}}],\"currentUser\":0,\"currentMinigame\":0,\"currentCourse\":0,\"currentTheme\":0}}";

        File.WriteAllText(path, oneUser);
        PersistentDataController.PATH = path;
        PersistentDataController.GetInstance().Load();
        AssetDatabase.LoadAssetAtPath<UserAvatarList>("Assets/Accounts/ScriptableObjects/UserAvatarList.asset").Awake();

        SystemController.GetInstance().SwapScene("Accounts/Scenes/UserProgressScreen");
        yield return new WaitForSeconds(WAIT_TIME);

        GameObject.FindObjectOfType<UserProgressScreen>().DisplayMinigames();
        yield return new WaitForSeconds(WAIT_TIME);
    }


    /// <summary>
    /// Test whether every item that needs to be assign in the editor, is assigned
    /// </summary>
    [UnityTest]
    public IEnumerator Test_EditorAssignments()
    {
        yield return Setup_ProgressGraph(1, (i) => i);

        var graph = GameObject.FindObjectOfType<ProgressGraph>();
        Assert.IsNotNull(graph);
        Assert.IsNotNull(graph.progressGraph);
        Assert.IsNotNull(graph.highscoreMarker);
        Assert.IsNotNull(graph.axesTickMarker);
    }

    [UnityTest]
    public IEnumerator Test_PlotGraph_Negative()
    {
        yield return Setup_ProgressGraph(4, (i) => -5 * (i + 1));
        yield return new WaitForSeconds(5.0f);
        Assert.IsTrue(true);
    }

    [UnityTest]
    public IEnumerator Test_PlotGraph_SmallerThen1()
    {
        yield return Setup_ProgressGraph(4, (i) => (3 * i + 20) / 100);
        yield return new WaitForSeconds(5.0f);
        Assert.IsTrue(true);
    }

    [UnityTest]
    public IEnumerator Test_PlotGraph_AroundZero()
    {
        yield return Setup_ProgressGraph(4, (i) => 5 * i - 10);
        yield return new WaitForSeconds(5.0f);
        Assert.IsTrue(true);
    }

    [UnityTest]
    public IEnumerator Test_PlotGraph_AllZeros()
    {
        yield return Setup_ProgressGraph(4, (i) => 0);
        yield return new WaitForSeconds(5.0f);
        Assert.IsTrue(true);
    }

    [UnityTest]
    public IEnumerator Test_PlotGraph_BetweenPos1AndNeg1()
    {
        yield return Setup_ProgressGraph(10, (i) => (i % 3) - 1);
        yield return new WaitForSeconds(5.0f);
        Assert.IsTrue(true);
    }

    [UnityTest]
    public IEnumerator Test_PlotGraph_Single()
    {
        yield return Setup_ProgressGraph(1, (i) => i + 500);
        yield return new WaitForSeconds(5.0f);
        Assert.IsTrue(true);
    }

    [UnityTest]
    public IEnumerator Test_PlotGraph_Multiple()
    {
        yield return Setup_ProgressGraph(5, (i) => 5 * i);
        yield return new WaitForSeconds(5.0f);
        Assert.IsTrue(true);
    }

    [UnityTest]
    public IEnumerator Test_PlotGraph_TooMany()
    {
        yield return Setup_ProgressGraph(10, (i) => 5 * i);
        yield return new WaitForSeconds(5.0f);
        Assert.IsTrue(true);
    }
}