package effect

import (
	"blazing/logic/service/fight/action"
	"blazing/logic/service/fight/info"
	"blazing/logic/service/fight/input"
	"blazing/logic/service/fight/node"

	"github.com/alpacahq/alpacadecimal"
)

var hundred = alpacadecimal.NewFromInt(100)

func applyStatusByID(owner, target *input.Input, statusID int) bool {
	if owner == nil || target == nil || statusID <= 0 {
		return false
	}
	eff := owner.InitEffect(input.EffectType.Status, statusID)
	if eff == nil {
		return false
	}
	target.AddEffect(owner, eff)
	return true
}

// Effect 1578: 出手时自身护盾值高于{0}则自身下回合攻击技能先制+{1}
type Effect1578 struct{ node.EffectNode }

func (e *Effect1578) Skill_Use() bool {
	if len(e.Args()) < 2 || e.Ctx().Our == nil {
		return true
	}
	shield := e.Ctx().Our.CurrentShield()
	if shield.Cmp(e.Args()[0]) <= 0 {
		return true
	}
	sub := e.Ctx().Our.InitEffect(input.EffectType.Sub, 1578, int(e.Args()[1].IntPart()))
	if sub != nil {
		e.Ctx().Our.AddEffect(e.Ctx().Our, sub)
	}
	return true
}

type Effect1578Sub struct {
	RoundEffectArg0Base
	remaining int
	priority  int
}

func (e *Effect1578Sub) SetArgs(t *input.Input, a ...int) {
	e.EffectNode.SetArgs(t, a...)
	if len(a) > 0 {
		e.remaining = 1
	}
	if len(a) > 1 {
		e.priority = a[0]
	}
}

func (e *Effect1578Sub) ComparePre(fattack, sattack *action.SelectSkillAction) bool {
	if e.remaining <= 0 {
		e.Alive(false)
		return true
	}
	current := actionByPlayer(fattack, sattack, e.Ctx().Our.UserID)
	if current == nil || current.SkillEntity == nil || current.SkillEntity.Category() == info.Category.STATUS {
		return true
	}
	current.SkillEntity.XML.Priority += e.priority
	e.remaining--
	if e.remaining <= 0 {
		e.Alive(false)
	}
	return true
}

// Effect 1579: 出手时自身护盾值低于{0}则下回合属性技能先制+{1}
type Effect1579 struct{ node.EffectNode }

func (e *Effect1579) Skill_Use() bool {
	if len(e.Args()) < 2 || e.Ctx().Our == nil {
		return true
	}
	if e.Ctx().Our.CurrentShield().Cmp(e.Args()[0]) >= 0 {
		return true
	}
	sub := e.Ctx().Our.InitEffect(input.EffectType.Sub, 1579, int(e.Args()[1].IntPart()))
	if sub != nil {
		e.Ctx().Our.AddEffect(e.Ctx().Our, sub)
	}
	return true
}

type Effect1579Sub struct {
	RoundEffectArg0Base
	remaining int
	priority  int
}

func (e *Effect1579Sub) SetArgs(t *input.Input, a ...int) {
	e.EffectNode.SetArgs(t, a...)
	if len(a) > 0 {
		e.remaining = 1
	}
	if len(a) > 1 {
		e.priority = a[0]
	}
}

func (e *Effect1579Sub) ComparePre(fattack, sattack *action.SelectSkillAction) bool {
	if e.remaining <= 0 {
		e.Alive(false)
		return true
	}
	current := actionByPlayer(fattack, sattack, e.Ctx().Our.UserID)
	if current == nil || current.SkillEntity == nil || current.SkillEntity.Category() != info.Category.STATUS {
		return true
	}
	current.SkillEntity.XML.Priority += e.priority
	e.remaining--
	if e.remaining <= 0 {
		e.Alive(false)
	}
	return true
}

// Effect 1580: 出手时对手体力高于最大体力的1/{0}则造成伤害的{1}%恢复自身体力
type Effect1580 struct {
	node.EffectNode
	shouldHeal bool
}

func (e *Effect1580) Skill_Use() bool {
	if len(e.Args()) < 2 || e.Ctx().Opp == nil || e.Ctx().Opp.CurrentPet == nil {
		return true
	}
	maxThreshold := e.Ctx().Opp.CurrentPet.GetMaxHP().Div(e.Args()[0])
	if e.Ctx().Opp.CurrentPet.GetHP().Cmp(maxThreshold) <= 0 {
		return true
	}
	e.shouldHeal = true
	return true
}

func (e *Effect1580) DamageAdd(zone *info.DamageZone) bool {
	if !e.shouldHeal || zone == nil || zone.Type != info.DamageType.Red || e.Ctx().Our == nil {
		return true
	}
	if len(e.Args()) < 2 {
		return true
	}
	heal := zone.Damage.Mul(e.Args()[1]).Div(hundred)
	if heal.Cmp(alpacadecimal.Zero) > 0 {
		e.Ctx().Our.Heal(e.Ctx().Our, &action.SelectSkillAction{}, heal)
	}
	e.shouldHeal = false
	return true
}

// Effect 1581: 出手时对手体力低于最大体力的1/{0}则造成的伤害提升{1}%
type Effect1581 struct{ node.EffectNode }

func (e *Effect1581) Damage_Mul(zone *info.DamageZone) bool {
	if zone == nil || zone.Type != info.DamageType.Red || len(e.Args()) < 2 || e.Ctx().Opp == nil || e.Ctx().Opp.CurrentPet == nil || e.Ctx().SkillEntity == nil || e.Ctx().SkillEntity.Category() == info.Category.STATUS || e.Ctx().SkillEntity.AttackTime == 0 {
		return true
	}
	threshold := e.Ctx().Opp.CurrentPet.GetMaxHP().Div(e.Args()[0])
	if e.Ctx().Opp.CurrentPet.GetHP().Cmp(threshold) >= 0 {
		return true
	}
	zone.Damage = zone.Damage.Mul(hundred.Add(e.Args()[1])).Div(hundred)
	return true
}

// Effect 1582: {0}%令对手{1}，{2}%令自身{3}，均未触发则为自身附加{4}点护盾
type Effect1582 struct{ node.EffectNode }

func (e *Effect1582) Skill_Use() bool {
	if len(e.Args()) < 5 || e.Ctx().Our == nil {
		return true
	}
	opponentTriggered := false
	if ok, _, _ := e.Input.Player.Roll(int(e.Args()[0].IntPart()), 100); ok {
		opponentTriggered = applyStatusByID(e.Ctx().Our, e.Ctx().Opp, int(e.Args()[1].IntPart()))
	}
	selfTriggered := false
	if ok, _, _ := e.Input.Player.Roll(int(e.Args()[2].IntPart()), 100); ok {
		selfTriggered = applyStatusByID(e.Ctx().Our, e.Ctx().Our, int(e.Args()[3].IntPart()))
	}
	if opponentTriggered || selfTriggered {
		return true
	}
	e.Ctx().Our.AddShield(e.Args()[4])
	return true
}

func init() {
	input.InitEffect(input.EffectType.Skill, 1578, &Effect1578{})
	input.InitEffect(input.EffectType.Sub, 1578, &Effect1578Sub{})
	input.InitEffect(input.EffectType.Skill, 1579, &Effect1579{})
	input.InitEffect(input.EffectType.Sub, 1579, &Effect1579Sub{})
	input.InitEffect(input.EffectType.Skill, 1580, &Effect1580{})
	input.InitEffect(input.EffectType.Skill, 1581, &Effect1581{})
	input.InitEffect(input.EffectType.Skill, 1582, &Effect1582{})
}