namespace SimsPersonalityGenerator;

using System.Text.Json;

public class Sim
{

    public int Nice { get; private set; }
    public int Neat { get; private set; }
    public int Outgoing { get; private set; }
    public int Active { get; private set; }
    public int Playful { get; private set; }

    const int MIN_HIGHEST_POINT = 8;
    const int MAX_LOWEST_POINT = 5;

    /// <summary>
    /// Initializes a new instance of the Sim class with a random personality.
    /// </summary>
    public Sim()
    {
        GenerateRandomPersonality();
    }

    /// <summary>
    /// Sets one personality trait higher or lower and compensates by adjusting another trait.
    /// </summary>
    /// <param name="trait">The name of the trait to adjust.</param>
    /// <param name="isHigh">True if the trait should be set higher, false if it should be set lower.</param>
    public void RebalanceTraits(Traits trait, bool isHigh = false)
    {
        switch (trait)
        {
            case Traits.Nice:
                if (isHigh && Nice >= MAX_LOWEST_POINT)
                    Nice = Math.Min(MIN_HIGHEST_POINT, Neat + 5);
                else
                    Neat = Math.Min(MIN_HIGHEST_POINT, Nice + 5);
                break;
            case Traits.Neat:
                if (isHigh && Neat >= MAX_LOWEST_POINT)
                    Neat = Math.Min(MIN_HIGHEST_POINT, Active + 5);
                else
                    Active = Math.Min(MIN_HIGHEST_POINT, Neat + 5);
                break;
            case Traits.Outgoing:
                if (isHigh && Outgoing >= MAX_LOWEST_POINT)
                    Outgoing = Math.Min(MIN_HIGHEST_POINT, Playful + 5);
                else
                    Playful = Math.Min(MIN_HIGHEST_POINT, Outgoing + 5);
                break;
            case Traits.Active:
                if (isHigh && Active >= MAX_LOWEST_POINT)
                    Active = Math.Min(MIN_HIGHEST_POINT, Nice + 5);
                else
                    Nice = Math.Min(MIN_HIGHEST_POINT, Active + 5);
                break;
            case Traits.Playful:
                if (isHigh && Playful >= MAX_LOWEST_POINT)
                    Playful = Math.Min(MIN_HIGHEST_POINT, Outgoing + 5);
                else
                    Outgoing = Math.Min(MIN_HIGHEST_POINT, Playful + 5);
                break;
            default:
                throw new ArgumentException("Invalid trait name.");
        }
    }

    /// <summary>
    /// Generates a random personality with balanced traits.
    /// </summary>
    public void GenerateRandomPersonality()
    {
        Random rand = new Random();
        Nice = rand.Next(11);
        Neat = rand.Next(11);
        Outgoing = rand.Next(11);
        Active = rand.Next(11);
        Playful = rand.Next(11);

        // Ensure that the sum of traits is balanced
        int totalSum = Nice + Neat + Outgoing + Active + Playful;
        if (totalSum > 50)
        {
            int average = totalSum - 50;
            int traitToReduce = rand.Next(5);
            switch (traitToReduce)
            {
                case 0: Nice -= Math.Min(Nice, average); break;
                case 1: Neat -= Math.Min(Neat, average); break;
                case 2: Outgoing -= Math.Min(Outgoing, average); break;
                case 3: Active -= Math.Min(Active, average); break;
                case 4: Playful -= Math.Min(Playful, average); break;
            }
        }
    }

    /// <summary>
    /// Returns a JSON representation of the character's personality traits.
    /// </summary>
    /// <returns>A JSON containing the values of all personality traits.</returns>
    public override string ToString()
    {
        var sim = new Sim();
        {
            Nice = Nice;
            Neat = Neat;
            Outgoing = Outgoing;
            Playful = Playful;
            Active = Active;
        };

        var options = new JsonSerializerOptions()
        {
            WriteIndented = true,
        };

        return JsonSerializer.Serialize<Sim>(sim, options);
    }
}