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"
)

// Effect 820: 未击败对手下{0}回合自身攻击先制+{1}
type Effect820 struct{ node.EffectNode }

func (e *Effect820) Skill_Use() bool {
	if len(e.Args()) < 2 || e.Ctx().Opp.CurrentPet == nil || e.Ctx().Opp.CurrentPet.Info.Hp <= 0 {
		return true
	}

	sub := e.Ctx().Our.InitEffect(input.EffectType.Sub, 820, int(e.Args()[0].IntPart()), int(e.Args()[1].IntPart()))
	if sub != nil {
		e.Ctx().Our.AddEffect(e.Ctx().Our, sub)
	}
	return true
}

type Effect820Sub struct{ RoundEffectArg0Base }

func (e *Effect820Sub) ComparePre(fattack, sattack *action.SelectSkillAction) bool {
	current := actionByPlayer(fattack, sattack, e.Ctx().Our.UserID)
	if current == nil || current.SkillEntity == nil || current.SkillEntity.Category() == info.Category.STATUS || len(e.Args()) < 2 {
		return true
	}

	current.SkillEntity.XML.Priority += int(e.Args()[1].IntPart())
	return true
}

// Effect 821: {0}回合内自身的回合类效果无法被消除，后出手时回合数+1
type Effect821 struct{ node.EffectNode }

func (e *Effect821) Skill_Use() bool {
	if len(e.Args()) == 0 {
		return true
	}

	rounds := int(e.Args()[0].IntPart())
	if !e.IsFirst() {
		rounds++
	}
	sub := e.Ctx().Our.InitEffect(input.EffectType.Sub, 821, rounds)
	if sub != nil {
		e.Ctx().Our.AddEffect(e.Ctx().Our, sub)
	}
	return true
}

type Effect821Sub struct {
	node.EffectNode
	remaining int
}

func (e *Effect821Sub) SetArgs(t *input.Input, a ...int) {
	e.EffectNode.SetArgs(t, a...)
	e.Duration(-1)
	if len(a) > 0 {
		e.remaining = a[0]
	}
}

func (e *Effect821Sub) Skill_Use_ex() bool {
	for _, eff := range e.Ctx().Our.Effects {
		if eff == nil || eff == e || eff.Alive() {
			continue
		}
		if eff.ID().GetEffectType() == input.EffectType.Status || eff.Duration() <= 0 {
			continue
		}
		eff.Alive(true)
	}
	return true
}

func (e *Effect821Sub) TurnEnd() {
	e.remaining--
	if e.remaining <= 0 {
		e.Alive(false)
	}
}

// Effect 822: 吸收对手的能力提升同时反转对手的能力提升
type Effect822 struct{ node.EffectNode }

func (e *Effect822) OnSkill() bool {
	for i, v := range e.Ctx().Opp.Prop[:] {
		if v <= 0 {
			continue
		}
		if e.Ctx().Opp.SetProp(e.Ctx().Our, int8(i), -2*v) {
			e.Ctx().Our.SetProp(e.Ctx().Our, int8(i), v)
		}
	}
	return true
}

// Effect 823: 当回合未击败对手，则下{0}回合必定先出手
type Effect823 struct{ node.EffectNode }

func (e *Effect823) Skill_Use() bool {
	if len(e.Args()) == 0 || e.Ctx().Opp.CurrentPet == nil || e.Ctx().Opp.CurrentPet.Info.Hp <= 0 {
		return true
	}

	sub := e.Ctx().Our.InitEffect(input.EffectType.Sub, 823, int(e.Args()[0].IntPart()))
	if sub != nil {
		e.Ctx().Our.AddEffect(e.Ctx().Our, sub)
	}
	return true
}

type Effect823Sub struct {
	node.EffectNode
	remaining int
}

func (e *Effect823Sub) SetArgs(t *input.Input, a ...int) {
	e.EffectNode.SetArgs(t, a...)
	e.Duration(-1)
	if len(a) > 0 {
		e.remaining = a[0]
	}
}

func (e *Effect823Sub) 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 {
		return true
	}

	current.SkillEntity.XML.Priority += 7
	e.remaining--
	if e.remaining <= 0 {
		e.Alive(false)
	}
	return true
}

// Effect 824: 若对手不处于{0}状态则吸取对手1/{1}最大体力
type Effect824 struct{ node.EffectNode }

func (e *Effect824) Skill_Use() bool {
	if len(e.Args()) < 2 || e.Args()[1].Cmp(alpacadecimal.Zero) <= 0 {
		return true
	}
	if e.Ctx().Opp.StatEffect_Exist(info.EnumPetStatus(e.Args()[0].IntPart())) {
		return true
	}

	drain := e.Ctx().Opp.CurrentPet.GetMaxHP().Div(e.Args()[1])
	if drain.Cmp(alpacadecimal.Zero) <= 0 {
		return true
	}

	e.Ctx().Opp.Damage(e.Ctx().Our, &info.DamageZone{
		Type:   info.DamageType.Percent,
		Damage: drain,
	})
	e.Ctx().Our.Heal(e.Ctx().Our, &action.SelectSkillAction{}, drain)
	return true
}

func init() {
	input.InitEffect(input.EffectType.Skill, 820, &Effect820{})
	input.InitEffect(input.EffectType.Sub, 820, &Effect820Sub{})
	input.InitEffect(input.EffectType.Skill, 821, &Effect821{})
	input.InitEffect(input.EffectType.Sub, 821, &Effect821Sub{})
	input.InitEffect(input.EffectType.Skill, 822, &Effect822{})
	input.InitEffect(input.EffectType.Skill, 823, &Effect823{})
	input.InitEffect(input.EffectType.Sub, 823, &Effect823Sub{})
	input.InitEffect(input.EffectType.Skill, 824, &Effect824{})
}