using System;
using System.Collections.Generic;
using UnityEngine;

[CreateAssetMenu(fileName = "NewEquipment", menuName = "Equipment/Equipment SO")]
public class equipmentSO : ScriptableObject
{
    public enum EquipmentSkillType
    {
        题海战术,
        诛锄异己,
        逸乐共谋,
        完美至上,
        涵养心境,
        众志成城,
        过激行为,
        二次形变
    }

    public enum EquipmentSpecialEffectType
    {
        MaxHp,
        Attack,
        MaxMana,
        DamageResistance,
        ScoreEfficiency,
        HitManaRecovery,
        HitDamageMultiplier,
        HpLoseBase,
        Skill
    }

    [Serializable]
    public class EquipmentStatTuning
    {
        [Range(-0.1f, 0.1f)]
        public float basicGain = 0f;

        [Min(0f)]
        public float cultivationInterval = 0f;

        public void Normalize()
        {
            basicGain = Mathf.Clamp(basicGain, -0.1f, 0.1f);
            cultivationInterval = Mathf.Max(0f, cultivationInterval);
        }
    }

    [Serializable]
    public class EquipmentTierPresentation
    {
        public string tierName;
        public Sprite equipmentSprite;
        [TextArea(2, 6)] public string tierDescription;
    }

    [Serializable]
    public class EquipmentSpecialEffect
    {
        public EquipmentSpecialEffectType effectType;
        public float value;
    }

    [Header("技能类型")]
    public EquipmentSkillType skillType;

    [Header("Basic Attributes")]
    [Min(0)] public int level = 0;
    public equipmentTierNameConfigSO tierNameConfig;

    [Header("Max HP")]
    public EquipmentStatTuning maxHp = new EquipmentStatTuning();

    [Header("Attack")]
    public EquipmentStatTuning attack = new EquipmentStatTuning();

    [Header("Max Mana")]
    public EquipmentStatTuning maxMana = new EquipmentStatTuning();

    [Header("Damage Resistance")]
    public EquipmentStatTuning damageResistance = new EquipmentStatTuning();

    [Header("Score Efficiency")]
    public EquipmentStatTuning scoreEfficiency = new EquipmentStatTuning();

    [Header("Special Effects")]
    public EquipmentSpecialEffect[] specialEffects = Array.Empty<EquipmentSpecialEffect>();

    [Header("是否共鸣")]
    public bool enableTypeSameEffects = false;

    [Header("共鸣特效")]
    public EquipmentSpecialEffect[] typeSameEffects = Array.Empty<EquipmentSpecialEffect>();

    [Header("幻化效果")]
    public EquipmentSpecialEffect[] illusionEffects = Array.Empty<EquipmentSpecialEffect>();

    [Header("满级效果")]
    public EquipmentSpecialEffect[] maxLevelEffects = Array.Empty<EquipmentSpecialEffect>();

    [Header("携带技能id")]
    public int sa_skillID;
    public int ia_skillID;

    public bool HasFinalDreamEffect()
    {
        return maxLevelEffects != null && maxLevelEffects.Length > 0;
    }

    public bool IsMaxLevelEffectActive()
    {
        return level >= 20 && HasFinalDreamEffect();
    }

    public int GetTierStageIndex()
    {
        if (level >= 20)
        {
            return 4;
        }

        if (level >= 15)
        {
            return 3;
        }

        if (level >= 10)
        {
            return 2;
        }

        if (level >= 5)
        {
            return 1;
        }

        return 0;
    }

    public int GetVisualTierStageIndex()
    {
        if (level >= 20 && !HasFinalDreamEffect())
        {
            return 3;
        }

        return GetTierStageIndex();
    }

    public int GetVisualQualityColorIndex()
    {
        return GetVisualTierStageIndex() + 1;
    }

    public EquipmentTierPresentation GetCurrentTierPresentation()
    {
        return GetTierPresentationByStageIndex(GetTierStageIndex());
    }

    public EquipmentTierPresentation GetVisualTierPresentation()
    {
        return GetTierPresentationByStageIndex(GetVisualTierStageIndex());
    }

    public EquipmentTierPresentation GetIdentityTierPresentation()
    {
        if (level >= 20)
        {
            return GetTierPresentationByStageIndex(3);
        }

        return GetTierPresentationByStageIndex(GetTierStageIndex());
    }

    public string GetDisplayTierName()
    {
        string baseName = GetIdentityTierPresentation() != null ? GetIdentityTierPresentation().tierName : string.Empty;
        if (level >= 20 && HasFinalDreamEffect())
        {
            return string.IsNullOrWhiteSpace(baseName) ? "梦醒记忆" : $"梦醒·{baseName}";
        }

        string visualName = GetVisualTierPresentation() != null ? GetVisualTierPresentation().tierName : string.Empty;
        return !string.IsNullOrWhiteSpace(visualName) ? visualName : baseName;
    }

    public string GetDisplayTierDescription()
    {
        if (level >= 20 && HasFinalDreamEffect())
        {
            return GetIdentityTierPresentation() != null ? GetIdentityTierPresentation().tierDescription : string.Empty;
        }

        return GetVisualTierPresentation() != null ? GetVisualTierPresentation().tierDescription : string.Empty;
    }

    public EquipmentTierPresentation GetTierPresentationByStageIndex(int stageIndex)
    {
        if (tierNameConfig == null)
        {
            return null;
        }

        if (tierNameConfig.TryGetStagePresentation(skillType, stageIndex, out equipmentTierNameConfigSO.StagePresentation configured))
        {
            return new EquipmentTierPresentation
            {
                tierName = configured.tierName,
                equipmentSprite = configured.equipmentSprite,
                tierDescription = configured.tierDescription
            };
        }

        return null;
    }

    public string GetCurrentTierDisplayName()
    {
        EquipmentTierPresentation current = GetCurrentTierPresentation();
        return current != null ? current.tierName : string.Empty;
    }

    public Sprite GetCurrentEquipmentSprite()
    {
        EquipmentTierPresentation current = GetCurrentTierPresentation();
        return current != null ? current.equipmentSprite : null;
    }

    public SkillGroup GetSpecialSkillGroup()
    {
        return EquipmentSkillGroupLibrary.ResolveSpecialSkillGroup(sa_skillID);
    }

    public SkillGroup GetIllusionSkillGroup()
    {
        return EquipmentSkillGroupLibrary.ResolveIllusionSkillGroup(ia_skillID);
    }

    public EquipmentSpecialEffect[] GetNormalizedIllusionEffects()
    {
        if (illusionEffects == null || illusionEffects.Length == 0)
        {
            return Array.Empty<EquipmentSpecialEffect>();
        }

        var normalized = new List<EquipmentSpecialEffect>();
        var bestValues = new Dictionary<EquipmentSpecialEffectType, float>();
        bool hasSkill = false;

        for (int i = 0; i < illusionEffects.Length; i++)
        {
            EquipmentSpecialEffect effect = illusionEffects[i];
            if (effect == null)
            {
                continue;
            }

            if (effect.effectType == EquipmentSpecialEffectType.Skill)
            {
                if (!hasSkill)
                {
                    normalized.Add(new EquipmentSpecialEffect
                    {
                        effectType = EquipmentSpecialEffectType.Skill,
                        value = effect.value
                    });
                    hasSkill = true;
                }

                continue;
            }

            if (!bestValues.TryGetValue(effect.effectType, out float currentBest) || effect.value > currentBest)
            {
                bestValues[effect.effectType] = effect.value;
            }
        }

        foreach (KeyValuePair<EquipmentSpecialEffectType, float> pair in bestValues)
        {
            normalized.Add(new EquipmentSpecialEffect
            {
                effectType = pair.Key,
                value = pair.Value
            });
        }

        return normalized.ToArray();
    }

    public void NormalizeIllusionEffectsInPlace()
    {
        illusionEffects = GetNormalizedIllusionEffects();
    }

    private void OnValidate()
    {
        level = Mathf.Max(0, level);
        sa_skillID = Mathf.Max(0, sa_skillID);
        ia_skillID = Mathf.Max(0, ia_skillID);
        maxHp?.Normalize();
        attack?.Normalize();
        maxMana?.Normalize();
        damageResistance?.Normalize();
        scoreEfficiency?.Normalize();
        NormalizeIllusionEffectsInPlace();
    }
}