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 836: 自身体力高于对手时先制+{0}
type Effect836 struct{ node.EffectNode }

func (e *Effect836) ComparePre(fattack, sattack *action.SelectSkillAction) bool {
	if len(e.Args()) == 0 || e.Ctx().Our.CurrentPet.GetHP().Cmp(e.Ctx().Opp.CurrentPet.GetHP()) <= 0 {
		return true
	}

	current := actionByPlayer(fattack, sattack, e.Ctx().Our.UserID)
	if current != nil && current.SkillEntity != nil {
		current.SkillEntity.XML.Priority += int(e.Args()[0].IntPart())
	}
	return true
}

// Effect 837: 吸取对手{0}点固定体力，每次使用额外附加{1}点，最高{2}点
type Effect837 struct{ AddLvelEffect }

func (e *Effect837) Skill_Use() bool {
	if len(e.Args()) < 3 {
		return true
	}

	damage := e.Args()[0]
	if e.UseSkillCount > 1 {
		damage = damage.Add(e.Args()[1].Mul(alpacadecimal.NewFromInt(e.UseSkillCount - 1)))
	}
	if damage.Cmp(e.Args()[2]) > 0 {
		damage = e.Args()[2]
	}
	if damage.Cmp(alpacadecimal.Zero) <= 0 {
		return true
	}

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

// Effect 838: 若当回合未击败对手，则下回合附加{0}点固定伤害
type Effect838 struct{ node.EffectNode }

func (e *Effect838) 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, 838, int(e.Args()[0].IntPart()))
	if sub != nil {
		e.Ctx().Our.AddEffect(e.Ctx().Our, sub)
	}
	return true
}

type Effect838Sub struct{ node.EffectNode }

func (e *Effect838Sub) SetArgs(t *input.Input, a ...int) {
	e.EffectNode.SetArgs(t, a...)
	e.Duration(1)
}

func (e *Effect838Sub) Skill_Use() bool {
	if len(e.Args()) == 0 || e.Args()[0].Cmp(alpacadecimal.Zero) <= 0 {
		return true
	}

	e.Ctx().Opp.Damage(e.Ctx().Our, &info.DamageZone{
		Type:   info.DamageType.Fixed,
		Damage: e.Args()[0],
	})
	e.Alive(false)
	return true
}

// Effect 839: 附加自身最大体力{0}%的百分比伤害并恢复等量体力
type Effect839 struct{ node.EffectNode }

func (e *Effect839) Skill_Use() bool {
	if len(e.Args()) == 0 {
		return true
	}

	amount := e.Ctx().Our.CurrentPet.GetMaxHP().Mul(e.Args()[0]).Div(hundred)
	if amount.Cmp(alpacadecimal.Zero) <= 0 {
		return true
	}

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

// Effect 840: 击败对手则对方下只精灵出战时己方在场精灵吸取其最大体力的1/{0}
type Effect840 struct{ node.EffectNode }

func (e *Effect840) Skill_Use() bool {
	if len(e.Args()) == 0 || e.Args()[0].Cmp(alpacadecimal.Zero) <= 0 || e.Ctx().Opp.CurrentPet == nil || e.Ctx().Opp.CurrentPet.Info.Hp > 0 {
		return true
	}

	sub := e.Ctx().Opp.InitEffect(input.EffectType.Sub, 840, int(e.Args()[0].IntPart()))
	if sub != nil {
		e.Ctx().Opp.AddEffect(e.Ctx().Our, sub)
	}
	return true
}

type Effect840Sub struct{ node.EffectNode }

func (e *Effect840Sub) SetArgs(t *input.Input, a ...int) {
	e.EffectNode.SetArgs(t, a...)
	e.CanStack(false)
	e.Duration(1)
}

func (e *Effect840Sub) SwitchIn(in *input.Input) bool {
	if in != e.Ctx().Our || len(e.Args()) == 0 || e.Args()[0].Cmp(alpacadecimal.Zero) <= 0 {
		return true
	}

	drain := e.Ctx().Our.CurrentPet.GetMaxHP().Div(e.Args()[0])
	if drain.Cmp(alpacadecimal.Zero) > 0 {
		e.Ctx().Our.Damage(e.Ctx().Opp, &info.DamageZone{
			Type:   info.DamageType.Percent,
			Damage: drain,
		})
		e.Ctx().Opp.Heal(e.Ctx().Opp, &action.SelectSkillAction{}, drain)
	}
	e.Alive(false)
	return true
}

func init() {
	input.InitEffect(input.EffectType.Skill, 836, &Effect836{})
	input.InitEffect(input.EffectType.Skill, 837, &Effect837{})
	input.InitEffect(input.EffectType.Skill, 838, &Effect838{})
	input.InitEffect(input.EffectType.Sub, 838, &Effect838Sub{})
	input.InitEffect(input.EffectType.Skill, 839, &Effect839{})
	input.InitEffect(input.EffectType.Skill, 840, &Effect840{})
	input.InitEffect(input.EffectType.Sub, 840, &Effect840Sub{})
}