using UnityEngine;
using UnityEngine.UI;
using DamageNumbersPro;
using System.Collections;

public class CharacterUIController : MonoBehaviour
{
    public Slider hpSlider;
    public Slider fatigueSlider;
    public Slider expSlider;

    public GameObject skillPanel;
    public Transform skillListContainer;
    public GameObject skillButtonPrefab;
    
    public GameObject inventoryPanel;  // Panel displaying character inventory
    public InventoryUIController inventoryUIController;  // Reference to inventory UI controller

    public Image characterIcon;
    public Button attackButton;
    public Button repeatActionButton;
    public Button openSkillsButton;
    public Button openInventoryButton;  // Button to open character inventory
    public Image cooldownOverlay;
    public FirstPersonWeapon assignedWeapon;

    public CharacterInGroup character; 
    public CharacterInGroup Character => character; 

    public DamageNumber damageUIPrefab; // à assigner dans l’inspector (UI)
    public RectTransform damageSpawnPoint; 

    public void Setup(CharacterInGroup chara, FirstPersonWeapon weapon)
    {
        character = chara;
        assignedWeapon = weapon;
        
        // Initialisation des sliders
        if (hpSlider != null)
        {
            hpSlider.maxValue = character.maxHP;
            hpSlider.value = character.currentHP;
        }

        if (fatigueSlider != null)
        {
            fatigueSlider.maxValue = character.maxFatigue;
            fatigueSlider.value = character.currentFatigue;
        }

        if (expSlider != null)
        {
            expSlider.maxValue = 100;
            expSlider.value = character.experience;
        }

        if (attackButton != null)
            attackButton.onClick.AddListener(OnAttack);
        if (repeatActionButton != null)
            repeatActionButton.onClick.AddListener(OnRepeat);
        if (openSkillsButton != null)
            openSkillsButton.onClick.AddListener(ToggleSkillPanel);
        if (openInventoryButton != null)
            openInventoryButton.onClick.AddListener(OnOpenInventory);

        UIUpdater.Instance?.Register(character, this);

        PopulateSkillList();

        if (cooldownOverlay != null)
        {
            cooldownOverlay.gameObject.SetActive(false);
        }
    }

    public void ShowDamageOnCard(int amount)
    {
        if (damageUIPrefab != null && damageSpawnPoint != null)
        {
            damageUIPrefab.SpawnGUI(damageSpawnPoint, Vector2.zero, amount);
        }
    }


    void PopulateSkillList()
    {
        foreach (Transform child in skillListContainer)
            Destroy(child.gameObject);

        foreach (var skill in character.learnedSkills)
        {
            SkillData data = skill.GetData();
            if (data == null) continue;

            var btnObj = Instantiate(skillButtonPrefab, skillListContainer);
            btnObj.transform.Find("Image").GetComponent<Image>().sprite = data.icon;

            Button btn = btnObj.GetComponent<Button>();

            if (btn != null)
            {
                // Capture la compétence associée
                SkillData capturedSkill = data;

                btn.onClick.AddListener(() => OnSkillButtonClicked(capturedSkill));
            }
        }
    }


    void OnAttack()
    {
        if (character.currentFatigue <= 0)
        {
            if (Random.value < 0.8f)
            {
                DisableButtonsTemporarily(5f);
                return;
            }
        }
        
        if (Random.value < 0.3f && character.currentFatigue > 0)
        {
            character.currentFatigue = Mathf.Max(0, character.currentFatigue - 5);
            UIUpdater.Instance?.UpdateCharacterFatigue(character);
        }
        
        character.lastAction = ActionType.Attack;
        assignedWeapon?.TriggerAttack();
        DisableButtonsTemporarily(5f);
    }

void OnSkillButtonClicked(SkillData skillData)
{
    int staminaCost = 15;
    if (character.currentFatigue < staminaCost)
    {
        return;
    }

    character.currentFatigue = Mathf.Max(0, character.currentFatigue - staminaCost);
    UIUpdater.Instance?.UpdateCharacterFatigue(character);

    if (skillData.skillName == "Boule de Feu")
    {
        FindFirstObjectByType<SpellCastingManager>()?.StartFireballCasting(skillData.icon.texture);
        character.lastAction = ActionType.UseSkill;
        character.lastSkillName = skillData.skillName;
    }
    
    DisableButtonsTemporarily(5f);
}

  

    void OnRepeat()
    {
        switch (character.lastAction)
        {
            case ActionType.Attack:
                OnAttack();
                return;

            case ActionType.UseSkill:
                var learnedSkill = character.learnedSkills.Find(s => s.GetData()?.skillName == character.lastSkillName);
                if (learnedSkill != null)
                {
                    var skillData = learnedSkill.GetData();
                    if (skillData != null)
                    {
                        OnSkillButtonClicked(skillData);
                        return;
                    }
                }
                break;

            case ActionType.Heal:
                break;

            default:
                break;
        }
        DisableButtonsTemporarily(5f);
    }


    void ToggleSkillPanel()
    {
        if (skillPanel != null)
            skillPanel.SetActive(!skillPanel.activeSelf);
    }
    
    void OnOpenInventory()
    {
        if (inventoryPanel != null)
        {
            inventoryPanel.SetActive(!inventoryPanel.activeSelf);
            
            if (inventoryPanel.activeSelf && inventoryUIController != null)
            {
                inventoryUIController.Bind(character);
            }
        }
    }

    public void UpdateHPBar()
    {
        if (hpSlider == null || character == null) return;
        
        hpSlider.maxValue = character.maxHP;
        hpSlider.value = character.currentHP;
        
        UnityEngine.UI.LayoutRebuilder.ForceRebuildLayoutImmediate(hpSlider.GetComponent<RectTransform>());
    }

    public void UpdateFatigueBar()
    {
        if (fatigueSlider == null || character == null) return;
        
        fatigueSlider.maxValue = character.maxFatigue;
        fatigueSlider.value = character.currentFatigue;
        UnityEngine.UI.LayoutRebuilder.ForceRebuildLayoutImmediate(fatigueSlider.GetComponent<RectTransform>());
    }

    public void UpdateExpBar()
    {
        if (expSlider == null || character == null) return;
        
        expSlider.value = character.experience;
        UnityEngine.UI.LayoutRebuilder.ForceRebuildLayoutImmediate(expSlider.GetComponent<RectTransform>());
    }

        public void DisableButtonsTemporarily(float duration)
    {
        StartCoroutine(CooldownRoutine(duration));
    }

    private IEnumerator CooldownRoutine(float duration)
    {
        cooldownOverlay.gameObject.SetActive(true);
        SetButtonsInteractable(false);

        if (cooldownOverlay) cooldownOverlay.fillAmount = 1f;

        float elapsed = 0f;
        while (elapsed < duration)
        {
            elapsed += Time.deltaTime;
            float fill = Mathf.Clamp01(1f - elapsed / duration);

            if (cooldownOverlay) cooldownOverlay.fillAmount = fill;

            yield return null;
        }

        SetButtonsInteractable(true);

        if (cooldownOverlay) cooldownOverlay.fillAmount = 0f;
    }

    private void SetButtonsInteractable(bool interactable)
    {
        if (attackButton != null)
            attackButton.interactable = interactable;
        if (repeatActionButton != null)
            repeatActionButton.interactable = interactable;
        if (openSkillsButton != null)
            openSkillsButton.interactable = interactable;
        // Note: Inventory button should remain accessible during cooldown
        
        var fadedColor = interactable ? Color.white : new Color(1f, 1f, 1f, 0.5f);
        if (attackButton != null)
            attackButton.image.color = fadedColor;
        if (repeatActionButton != null)
            repeatActionButton.image.color = fadedColor;
        if (openSkillsButton != null)
            openSkillsButton.image.color = fadedColor;
    }

    public void HandleCharacterDeath()
    {
        string characterName = character.characterName;
        
        TeamCohesionManager cohesionManager = FindFirstObjectByType<TeamCohesionManager>();
        if (cohesionManager != null)
        {
            cohesionManager.groupMembers.Remove(character);
        }
        
        UIUpdater.Instance?.Unregister(characterName);
        
        Destroy(gameObject);
        
        if (cohesionManager != null && cohesionManager.groupMembers.Count == 0)
        {
            var gameManagerObj = GameObject.Find("GameManager");
            if (gameManagerObj != null)
            {
                gameManagerObj.SendMessage("OnPartyWiped", SendMessageOptions.DontRequireReceiver);
            }
        }
    }

}