using TMPro;
using UnityEngine;
using UnityEngine.UI;
using Player.Movement;

namespace Player.Information
{
    public class PlayerStats : MonoBehaviour
    {
        [SerializeField] private float maxHealth = 100;

        [SerializeField] private float healthDepleteRate = 1;

        [SerializeField] private float maxHunger = 20f;

        [SerializeField] private float maxHydration = 10f;

        [SerializeField] private int nanites = 10;

        [SerializeField] private Transform spawnpoint;

        [SerializeField] public bool jetpackEnabled;

        [SerializeField] public bool inputEnabled = true;
        
        public bool grappleEnabled;
        private float health;
        private Image healthContent;

        private float hunger;
        private Image hungerContent;

        private float hydration;
        private Image hydrationContent;
        private TMP_Text naniteContent;

        private PlayerPhysics playerPhysics;

        private GameObject statUI;

        private Image thrustContent;

        // Start is called before the first frame update
        private void Start()
        {
            health = maxHealth;
            hunger = maxHunger;
            hydration = maxHydration;

            statUI = GameObject.Find("Survival Stats");
            healthContent = statUI.transform.Find("Health Bar/Health Value").gameObject.GetComponent<Image>();
            hungerContent = statUI.transform.Find("Hunger Bar/Hunger Value").gameObject.GetComponent<Image>();
            hydrationContent = statUI.transform.Find("Hydration Bar/Hydration Value").gameObject.GetComponent<Image>();
            naniteContent = statUI.transform.Find("Nanite Bar").gameObject.GetComponent<TMP_Text>();

            thrustContent = statUI.transform.Find("Thrust Bar/Thrust Value").gameObject.GetComponent<Image>();

            SetNanites(nanites);

            playerPhysics = gameObject.GetComponent<PlayerPhysics>();
        }

        // Update is called once per frame
        private void Update()
        {
            TickStats();
        }

        //called each frame to update stat values
        public void TickStats()
        {
            TickHunger();
            TickHydration();
            if (hunger == 0f || hydration == 0f) ChangeHealth(-healthDepleteRate * Time.deltaTime);
            if (health == 0)
            {
                Debug.Log("player died");
                Respawn();
            }
        }

        public void ChangeStat(ref float stat, float maxStat, float change, ref Image statContent)
        {
            stat = Mathf.Clamp(stat + change, 0f, maxStat);
            statContent.fillAmount = Mathf.Clamp(stat / maxStat, 0f, 1f);
        }

        public void TickHunger()
        {
            ChangeHunger(-Time.deltaTime);
        }

        public void TickHydration()
        {
            ChangeHydration(-Time.deltaTime);
        }

        public void ChangeHealth(float change)
        {
            ChangeStat(ref health, maxHealth, change, ref healthContent);
        }

        public void ChangeHunger(float change)
        {
            ChangeStat(ref hunger, maxHunger, change, ref hungerContent);
        }

        public void ChangeHydration(float change)
        {
            ChangeStat(ref hydration, maxHydration, change, ref hydrationContent);
        }

        public void ConsumeResource(float change, string name)
        {
            if (name == "Food")
                ChangeHunger(change);
            else if (name == "Water")
                ChangeHydration(change);
            else if (name == "Health") ChangeHealth(change);
        }

        public int GetNanites()
        {
            return nanites;
        }

        public void SetNanites(int s)
        {
            nanites = s;
            naniteContent.SetText(nanites.ToString());
        }

        public void ChangeNanites(int c)
        {
            SetNanites(nanites + c);
        }

        public void Respawn()
        {
            // Note, this respawn script will have to be more advanced in later versions.
            ChangeHealth(maxHealth);
            ChangeHunger(maxHunger);
            ChangeHydration(maxHydration);
            transform.position = spawnpoint.position;
            transform.rotation = spawnpoint.rotation;
            playerPhysics.Reset();
        }

        public void SetThrust(float amount)
        {
            thrustContent.fillAmount = amount;
        }
    }
}