local GameplayStatics = import("GameplayStatics")
local AbilitySystemBlueprintLibrary = import("AbilitySystemBlueprintLibrary")
local BusyGameplayLibrary = import("BusyGameplayLibrary")

--- @class FoxUltimate
--- @field RecastWindow number
local FoxUltimate = {}


function FoxUltimate:ctor()
    self.ultimate_phase = 1  -- 大招阶段
    self.active_recast_handle = nil
    self.active_accelerate_handle = nil
end


function FoxUltimate:K2_ActivateAbilityFromEvent(EventData)
    print("FoxUltimate:K2_ActivateAbilityFromEvent", self.ultimate_phase)

    local owner = self:GetOwningActorFromActorInfo()
    self.movement =  owner.MovementComponent
    self.animation = owner.SpineAnimationComponent
    self.asc = AbilitySystemBlueprintLibrary.GetAbilitySystemComponent(owner)
    self.recast_tag = BusyGameplayLibrary.RequestGameplayTag("Ability.Flags.Recast")

    local asc = self.asc

    if self.ultimate_phase == 1 or asc:HasMatchingGameplayTag(self.recast_tag) then
        print("triggered")
        self:TriggerUltimate(asc)
    else
        self:K2_EndAbility()
    end


end

function FoxUltimate:TriggerUltimate(asc)
    if self.ultimate_phase == 1 then
        -- 第一次释放大招，添加一个可以再次释放的Tag
        local _, recast_effect = self:GetAbilityEffectSpecHandle("Recast", asc, 1, nil)
        self.active_recast_handle = asc:BP_ApplyGameplayEffectSpecToSelf(recast_effect)
    elseif self.ultimate_phase == 2 then
        -- 第二次激活，移除可重复释放的tag
        self.asc:RemoveActiveGameplayEffect(self.active_recast_handle, -1)
        local _, recast_effect = self:GetAbilityEffectSpecHandle("Recast", asc, 1, nil)
        self.active_recast_handle = asc:BP_ApplyGameplayEffectSpecToSelf(recast_effect)
    elseif self.ultimate_phase == 3 then
        self.asc:RemoveActiveGameplayEffect(self.active_recast_handle, -1)
    end

    -- 播放动画，并监听动画完成的事件
    self:PlayAnimation()
end


function FoxUltimate:GetAnimationName(direction)
    local animation_name_prefix
    if direction.X >= 0 then
        animation_name_prefix = "Ultimate/Right/"
    else
        animation_name_prefix = "Ultimate/Left/"
    end

    if self.ultimate_phase == 1 then
        return animation_name_prefix .. "UltimateStage1"
    elseif self.ultimate_phase == 2 then
        return animation_name_prefix .. "UltimateStage2"
    elseif self.ultimate_phase == 3 then
        return animation_name_prefix .. "UltimateStage3"
    end
    return nil
end


function FoxUltimate:K2_OnEndAbility(bWasCancelled)
    print("FoxUltimate:K2_OnEndAbility")
end


function FoxUltimate:GetSprintSpeedFactor()
    if self.ultimate_phase == 1 then
        return 2.5
    elseif self.ultimate_phase == 2 then
        return 2.8
    elseif self.ultimate_phase == 3 then
        return 3.0
    end
end

function FoxUltimate:PlayAnimation()

    local animation = self.animation
    local PC = GameplayStatics.GetPlayerController(self, 0)

    local result, ability_direction = PC:GetCursorDirection(nil)  -- 获取技能的朝向
    if not result then
        print("FoxUltimate:TriggerPrimaryPhase can't find direction")
        return
    end
    local anim_name = self:GetAnimationName(ability_direction)  -- 获取技能动画名称
    if not anim_name then
        print("FoxUltimate:TriggerPrimaryPhase can't get animation", self.ultimate_phase)
        return
    end

    local anim_entry = animation:SetAnimation(0, anim_name, false)
    anim_entry.AnimationComplete:Add(function(entry) self:OnAnimationComplete(entry) end)
    anim_entry.AnimationEvent:Add(function(entry, event) self:OnAnimationEvent(entry, event) end)

    local anim_total_time = anim_entry:GetAnimationEnd()  -- 获取技能动画时长

    -- 附加加速buff
    self:MakeAccelerate(self:GetSprintSpeedFactor(), anim_total_time)
    self.movement:ActivateSprint(ability_direction, anim_total_time)
end


function FoxUltimate:MakeAccelerate(speed_factor, total_time)
    local _, accelerate_effect = self:GetAbilityEffectSpecHandle("Accelerate", self.asc, 1, nil)
    AbilitySystemBlueprintLibrary.AssignTagSetByCallerMagnitude(
        accelerate_effect,
        BusyGameplayLibrary.RequestGameplayTag("Effect.Factor"),
        speed_factor
    )

    AbilitySystemBlueprintLibrary.AssignTagSetByCallerMagnitude(
        accelerate_effect,
        BusyGameplayLibrary.RequestGameplayTag("Effect.Duration"),
        total_time
    )
    return self.asc:BP_ApplyGameplayEffectSpecToSelf(accelerate_effect)
end


function FoxUltimate:OnAnimationComplete(entry)
    self.ultimate_phase = self.ultimate_phase + 1
    entry.AnimationComplete:Clear()
    entry.AnimationEvent:Clear()
    self:K2_EndAbility()
end

function FoxUltimate:OnAnimationEvent(entry, event)
    if event.Name == "OnSpeedChange" then
        self.active_accelerate_handle = self:MakeAccelerate(8.0, 0.5)
    elseif event.Name == "OnSpeedReset" then
        self.asc:RemoveActiveGameplayEffect(self.active_accelerate_handle, -1)
    end
end



return Class(nil, nil, FoxUltimate)