package input

import (
	element "blazing/common/data/Element"
	"blazing/common/utils"

	"blazing/logic/service/fight/action"
	"blazing/logic/service/fight/info"

	"github.com/alpacahq/alpacadecimal"
	"github.com/gogf/gf/v2/util/gconv"
	"github.com/gogf/gf/v2/util/grand"
)

// 计算暴击
func (our *Input) CalculateCrit(opp *Input, skill *info.SkillEntity) {
	ourPet := our.CurrentPet()
	oppPet := opp.CurrentPet()
	if ourPet == nil || oppPet == nil {
		return
	}

	skill.Crit = 0
	if skill.Category() == info.Category.STATUS { //属性技能不用算暴击
		return
	}
	CritRate := utils.Max(skill.XML.CritRate, 1)

	//CritAtkFirst: 先出手时必定致命一击; 默认: 0
	if skill.XML.CritAtkFirst != 0 && our.FightC.IsFirst(our.Player) {
		CritRate = 16
	}
	//CritAtkSecond: 后出手时必定致命一击; 默认: 0
	if skill.XML.CritAtkSecond != 0 && !our.FightC.IsFirst(our.Player) {
		CritRate = 16
	}
	// CritSelfHalfHp: 自身体力低于一半时必定致命一击; 默认: 0
	if skill.XML.CritSelfHalfHp != 0 && (ourPet.HP < int(ourPet.Info.MaxHp)/2) {
		CritRate = 16
	}
	//  CritFoeHalfHp: 对方体力低于一半时必定致命一击; 默认: 0
	if skill.XML.CritSelfHalfHp != 0 && (oppPet.HP < int(oppPet.Info.MaxHp)/2) {
		CritRate = 16
	}

	//todo 暴击伤害
	if t := grand.Meet(CritRate, 16); t {
		skill.Crit = 1
	}

}

// 恢复血量
func (our *Input) Heal(in *Input, ac action.BattleActionI, value alpacadecimal.Decimal) {
	currentPet := our.CurrentPet()
	if currentPet == nil {
		return
	}
	healValue := int(value.IntPart())

	if ac != nil {
		if _, ok := ac.(*action.UseItemAction); !ok {
			our.ExecWithOpponent(in, func(t Effect) bool {
				t.Heal_Pre(ac, &healValue)
				return true
			})
		}
	}

	//使用道具回血
	if _, ok := ac.(*action.UseItemAction); !ok &&
		ac != nil &&
		in == our &&
		healValue > 0 {
		our.AttackValue.GainHp += int32(healValue) //道具有专门的回血包
	}

	if healValue >= 0 {
		currentPet.Info.ModelHP(int64(healValue))
		if our.AttackValue != nil {
			our.AttackValue.RemainHp = int32(currentPet.Info.Hp)
			our.AttackValue.MaxHp = currentPet.Info.MaxHp
		}
		return
	}

	damage := uint32(-healValue)
	if damage >= currentPet.Info.Hp {
		currentPet.Info.Hp = 0
		if our.AttackValue != nil {
			our.AttackValue.RemainHp = 0
			our.AttackValue.MaxHp = currentPet.Info.MaxHp
		}
		return
	}
	currentPet.Info.Hp -= damage
	if our.AttackValue != nil {
		our.AttackValue.RemainHp = int32(currentPet.Info.Hp)
		our.AttackValue.MaxHp = currentPet.Info.MaxHp
	}

}
func (our *Input) HealPP(value int) {
	currentPet := our.CurrentPet()
	if currentPet == nil {
		return
	}

	currentPet.Info.HealPP(value)

}
func (our *Input) DelPP(value int) {
	currentPet := our.CurrentPet()
	if currentPet == nil {
		return
	}

	for i := 0; i < len(currentPet.Info.SkillList); i++ {
		if uint32(value) > currentPet.Info.SkillList[i].PP {
			currentPet.Info.SkillList[i].PP = 0
		} else {
			currentPet.Info.SkillList[i].PP -= uint32(value)
		}

	}

}

// Damage 对方对我方造成伤害，处理伤害计算和扣减血量逻辑，包括各种增伤、减伤效果
// /红伤只允许调用一次来保持锁伤
// 这个方法是对对方造成伤害
// 伤害落实  // 血量扣减节点比如触发回神，反弹也在这里实现
func (our *Input) Damage(in *Input, sub *info.DamageZone) {
	currentPet := our.CurrentPet()
	if currentPet == nil {
		return
	}
	attacker := in
	if attacker == nil {
		attacker = our
	}
	// if sub.Type == info.DamageType.Red { //每回合计算伤害的时候重置伤害
	// 	our.Opp.SumDamage = sub.Damage

	// }
	// 对方对我方造成，需要吃到对方的加成
	var ok bool
	if our != attacker {
		ok = attacker.ExecWithOpponent(our, func(t Effect) bool {

			t.DamageAdd(sub) //红伤落实前,我方增伤

			return true
		})

		//sub.BeforeMul = sub.Damage
		if ok {
			ok = attacker.ExecWithOpponent(our, func(t Effect) bool {

				t.Damage_Mul(sub) //红伤落实前,我方增伤

				return true
			})
		}
		//sub.BeforeFloor = sub.Damage
		if ok {
			ok = attacker.ExecWithOpponent(our, func(t Effect) bool {

				t.DamageFloor(sub) //红伤落实,内部有befer

				return true
			})
		}
	}

	//	sub.BeforeMul = sub.Damage
	if ok {
		ok = our.ExecWithOpponent(attacker, func(t Effect) bool {

			t.DamageDivEx(sub) //红伤落实,内部有befer

			return true
		})
	}

	//sub.BeforeSUB = sub.Damage
	if ok {
		ok = our.ExecWithOpponent(attacker, func(t Effect) bool {

			t.DamageSubEx(sub)

			return true
		})
	}
	//sub.BeforeLocked = sub.Damage
	if ok {
		our.ExecWithOpponent(attacker, func(t Effect) bool {

			t.DamageLockEx(sub)

			return true
		})
	}
	//	sub.BeforeLock = sub.Damage
	if ok && attacker != our {
		ok = attacker.ExecWithOpponent(our, func(t Effect) bool {

			t.DamageLock(sub)

			return true
		})
	}
	if ok {
		our.ExecWithOpponent(attacker, func(t Effect) bool {

			t.Damage_Shield(sub)

			return true
		})
	}
	if sub.Damage.Cmp(alpacadecimal.Zero) < 0 {
		sub.Damage = alpacadecimal.Zero
	}
	if shieldAbsorb := our.AbsorbShieldDamage(sub.Damage); shieldAbsorb.Cmp(alpacadecimal.Zero) > 0 {
		sub.Damage = sub.Damage.Sub(shieldAbsorb)
	}
	if sub.Type == info.DamageType.Red { //红才会产生造成伤害
		attacker.SumDamage = sub.Damage.Add(attacker.SumDamage) // 叠加总伤害 这里相当于记录红伤

	}
	if sub.Type == info.DamageType.Red { //红才会产生造成伤害
		attacker.AttackValue.LostHp += uint32(sub.Damage.IntPart()) //红伤落实

	}

	if uint32(sub.Damage.IntPart()) > currentPet.Info.Hp {

		currentPet.Info.Hp = 0
	} else {
		currentPet.Info.Hp = currentPet.Info.Hp - uint32(sub.Damage.IntPart())
	}
	if our.AttackValue != nil {
		our.AttackValue.RemainHp = int32(currentPet.Info.Hp)
		our.AttackValue.MaxHp = currentPet.Info.MaxHp
	}

	//todo  待实现死亡effet

}

// 计算技能威力
func (our *Input) CalculatePower(deftype *Input, skill *info.SkillEntity) alpacadecimal.Decimal {
	if deftype == nil {
		return alpacadecimal.Zero
	}
	ourPet := our.CurrentPet()
	defPet := deftype.CurrentPet()
	if ourPet == nil || defPet == nil {
		return alpacadecimal.Zero
	}

	// 1. 计算等级因子 (level * 0.4 + 2)
	levelFactor := alpacadecimal.NewFromInt(int64(ourPet.Info.Level)).
		Mul(alpacadecimal.NewFromFloat(0.4)).Add(alpacadecimal.NewFromInt(2))

	var (
		attackDec  alpacadecimal.Decimal //攻击值
		defenseDec alpacadecimal.Decimal //防御值

	)

	switch skill.Category() { //判断技能类型
	case info.Category.PHYSICAL:
		attackDec = our.GetProp(0)
		defenseDec = deftype.GetProp(1)

	case info.Category.SPECIAL:

		attackDec = our.GetProp(2)
		defenseDec = deftype.GetProp(3)

	default:
		return alpacadecimal.Zero
	}
	// 8. DmgBindLv: 使对方受到的伤害值等于等级; 默认: 0
	// 9. PwrBindDv: 1,威力（power）取决于潜力（个体值）*5; 2,威力（power）取决于最大体力*1/3+潜力（个体值）; 默认: 0
	// 10. PwrDouble: 攻击时，若对方处于异常状态, 则威力翻倍;
	// 11. DmgBindHpDv: 造成的伤害等于自身剩余体力*1/2+潜力（个体值）; 默认: 0
	if skill.XML.DmgBindLv != 0 {

		skill.XML.Power = int(defPet.Info.Level)

	}
	if skill.XML.PwrBindDv != 0 {
		if skill.XML.PwrBindDv == 1 {

			skill.XML.Power = int(ourPet.Info.Dv * 5)

		}
		if skill.XML.PwrBindDv == 2 {
			skill.XML.Power = int(ourPet.Info.Hp/3 + ourPet.Info.Dv)
		}

	}
	if skill.XML.PwrDouble != 0 {

		if deftype.StatEffect_Exist_all() {
			skill.XML.Power = skill.XML.Power * 2
		}

	}
	if skill.XML.DmgBindHpDv != 0 {
		skill.XML.Power = int(ourPet.Info.Hp/2 + ourPet.Info.Dv)

	}
	// 5. 基础伤害公式：等级因子 * 威力因子 * 攻击 / 防御 / 50 + 2
	baseDamage := levelFactor.
		Div(alpacadecimal.NewFromInt(50)).
		Mul(alpacadecimal.NewFromInt(int64(skill.XML.Power))).
		Mul(attackDec.Div(defenseDec)).
		Add(alpacadecimal.NewFromInt(2))

	var typeRate alpacadecimal.Decimal
	//fmt.Println(skill.Type().ID, defPet.Type().ID)
	t, _ := element.Calculator.GetOffensiveMultiplier(skill.GetType().ID, defPet.GetType().ID)
	our.AttackValue.Offensive = gconv.Float32(t)

	typeRate = alpacadecimal.NewFromFloat(t)

	damage := baseDamage.
		Mul(skill.CriticalsameTypeBonus()). // 同属性加成
		Mul(typeRate).                      // 克制系数

		Mul(skill.Criticalrandom()) //随机波动
	//println(baseDamage.IntPart(), damage.IntPart(), attackDec.IntPart(), defenseDec.IntPart(), "技能伤害")
	return damage

}