--- @class BusyLevelItem
local LevelItem = {}
local Reactive = require("Core.Reactive")
local RoleUtils = require("GamePlay.Utils.RoleUtils")
local GameplayUtils = require("GamePlay.Utils")
local KismetSystemLibrary = import("KismetSystemLibrary")

function LevelItem:ReceiveBeginPlay()
    self:SetLevelItemID(self.CurrentItemID)
    self.world = self:GetWorld()
    print("LevelItem:ReceiveBeginPlay")
end


function LevelItem:TempSetting()
    self:ReceiveBeginPlay()
end

function LevelItem:ReceiveLevelItemSetted(Config)
    self.config = Config
    self.PickBar.Widget:BindLevelItem(self)

    print("LevelItem:ReceiveLevelItemSetted", KismetSystemLibrary.IsValid(self))


    self.attribute_watcher = Reactive.Watcher(function()
        if self.LuaLevelItemAttribute.Health <= 0 then
            self:GenerateDropItems()
            local location = self:K2_GetActorLocation()
            location.Z = -1000
            self:K2_SetActorLocation(location, false, nil, false)
            self:SetLifeSpan(0.3)
            self.attribute_watcher:Destroy()
        end
    end)
end


function LevelItem:GenerateDropItems()
    local BusyActorManagerSubSystem = import("BusyActorManagerSubSystem").Get(self.world)
    local role = RoleUtils.GetRole(self)
    local role_location = role:K2_GetActorLocation()
    local curr_location = self:K2_GetActorLocation()

    local collection_config = GameplayUtils.GetItemConfigByID(self.CurrentItemID)

    local generated_dict = {}
    for _, config in pairs(collection_config.DropConfigs) do
        local base = 0
        local seed = math.random()
        for _, rate in pairs(config.configs) do
            local min = base
            local max = base + rate.Rate
            if seed >= min and seed < max then
                generated_dict[config.ItemID] = rate.Count
                break
            end
            base = max
        end

    end

    for item_id, count in pairs(generated_dict) do
        for _ = 1, count do
            local reward = BusyActorManagerSubSystem:SpawnLevelItemReward(self)

            reward.Movement.speed = 300.0
            reward.Movement.accelerate = 600.0
            reward.Movement.direction = {
                X = curr_location.X - role_location.X,
                Y = curr_location.Y - role_location.Y
            }
            reward:SetRewardID(item_id)
        end
    end



end


-- 接口
function LevelItem:GetPickProcess()
    local process = self.LuaLevelItemAttribute.Health / self.config.PickTimeCost
    print("current process", process)
    return process
end


function LevelItem:GetPickCost()
    return self.LevelItemConfig.PickHungerCost
end

function LevelItem:IsAlive()
    return self.LuaLevelItemAttribute.Health > 0
end

function LevelItem:GetItemID()
    return self.CurrentItemID
end


return Class(nil, nil, LevelItem)