local ____lualib = require("lualib_bundle")
local __TS__Class = ____lualib.__TS__Class
local Map = ____lualib.Map
local __TS__New = ____lualib.__TS__New
local __TS__StringIncludes = ____lualib.__TS__StringIncludes
local __TS__Iterator = ____lualib.__TS__Iterator
local ____exports = {}
local ____entity_radius = require("utils.entity_radius")
local findAllByClassnameInRadius = ____entity_radius.findAllByClassnameInRadius
____exports.ItemDetector = __TS__Class()
local ItemDetector = ____exports.ItemDetector
ItemDetector.name = "ItemDetector"
ItemDetector.____file_path = "scripts/vscripts/item_detector.lua"
function ItemDetector.prototype.____constructor(self)
    self.lastKnownItems = __TS__New(Map)
    self.lastKnownItems = __TS__New(Map)
    self:InitializeItemDetection()
    ListenToGameEvent(
        "entity_killed",
        function(event) return self:OnItemPickup(event) end,
        nil
    )
end
function ItemDetector.Initialize(self)
    if not ____exports.ItemDetector.instance then
        ____exports.ItemDetector.instance = __TS__New(____exports.ItemDetector)
    end
end
function ItemDetector.prototype.InitializeItemDetection(self)
    GameRules:GetGameModeEntity():SetThink(
        function()
            self:ScanForNearbyItems()
            return 0.25
        end,
        "ScanForNearbyItemsThink",
        "0",
        nil
    )
end
function ItemDetector.prototype.snapshotFromUpdate(self, u)
    return {
        distanceRounded = math.floor(u.distance + 0.5),
        cost = u.cost,
        currencyType = u.currencyType,
        rarity = u.rarity
    }
end
function ItemDetector.prototype.snapshotsEqual(self, a, b)
    return a.distanceRounded == b.distanceRounded and a.cost == b.cost and a.currencyType == b.currencyType and a.rarity == b.rarity
end
function ItemDetector.prototype.tryBuildNearbyUpdate(self, heroPos, itemEntity, detectionRadius)
    local containedItem = itemEntity:GetContainedItem()
    if containedItem == nil or containedItem == nil then
        return nil
    end
    local itemName = containedItem:GetAbilityName()
    local itemPos = itemEntity:GetAbsOrigin()
    local distance = (heroPos - itemPos):Length2D()
    if distance > detectionRadius then
        return nil
    end
    local itemCost = containedItem:GetCost()
    local currencyType
    local rarity
    if __TS__StringIncludes(itemName, "item_blackshop_") then
        local blackShop = require("blackshop").BlackShop:getInstance()
        local shopItem = blackShop:getItemInfo(itemName)
        if shopItem then
            itemCost = shopItem.cost
            currencyType = "crystal"
            repeat
                local ____switch15 = shopItem.quality
                local ____cond15 = ____switch15 == 0
                if ____cond15 then
                    rarity = "common"
                    break
                end
                ____cond15 = ____cond15 or ____switch15 == 1
                if ____cond15 then
                    rarity = "rare"
                    break
                end
                ____cond15 = ____cond15 or ____switch15 == 2
                if ____cond15 then
                    rarity = "epic"
                    break
                end
                ____cond15 = ____cond15 or ____switch15 == 3
                if ____cond15 then
                    rarity = "legendary"
                    break
                end
                ____cond15 = ____cond15 or ____switch15 == 4
                if ____cond15 then
                    rarity = "cursed"
                    break
                end
                ____cond15 = ____cond15 or ____switch15 == 5
                if ____cond15 then
                    rarity = "heavenly"
                    break
                end
                do
                    rarity = "common"
                    break
                end
            until true
        end
    else
        currencyType = "gold"
    end
    return {
        itemName = itemName,
        distance = distance,
        cost = itemCost,
        currencyType = currencyType,
        rarity = rarity
    }
end
function ItemDetector.prototype.ScanForNearbyItems(self)
    local heroes = HeroList:GetAllHeroes()
    local detectionRadius = 400
    for ____, hero in ipairs(heroes) do
        do
            if not IsValidEntity(hero) or not hero:IsRealHero() then
                goto __continue18
            end
            local heroPos = hero:GetAbsOrigin()
            local playerID = hero:GetPlayerOwnerID()
            if playerID == -1 then
                goto __continue18
            end
            local player = PlayerResource:GetPlayer(playerID)
            if not player then
                goto __continue18
            end
            local nearbyItems = findAllByClassnameInRadius("dota_item_drop", heroPos, detectionRadius)
            local currentMap = __TS__New(Map)
            for ____, item in ipairs(nearbyItems) do
                do
                    if not IsValidEntity(item) then
                        goto __continue22
                    end
                    local itemEntity = item
                    if not itemEntity then
                        goto __continue22
                    end
                    local update = self:tryBuildNearbyUpdate(heroPos, itemEntity, detectionRadius)
                    if update then
                        currentMap:set(update.itemName, update)
                    end
                end
                ::__continue22::
            end
            local lastMap = self.lastKnownItems:get(playerID) or __TS__New(Map)
            for ____, ____value in __TS__Iterator(lastMap) do
                local name = ____value[1]
                if not currentMap:has(name) then
                    CustomGameEventManager:Send_ServerToPlayer(player, "nearby_item_remove", {itemName = name})
                end
            end
            for ____, ____value in __TS__Iterator(currentMap) do
                local name = ____value[1]
                local update = ____value[2]
                local nextSnap = self:snapshotFromUpdate(update)
                local prev = lastMap:get(name)
                if prev == nil then
                    CustomGameEventManager:Send_ServerToPlayer(player, "nearby_item_update", update)
                elseif not self:snapshotsEqual(prev, nextSnap) then
                    CustomGameEventManager:Send_ServerToPlayer(player, "nearby_item_update", update)
                end
            end
            local nextKnown = __TS__New(Map)
            for ____, ____value in __TS__Iterator(currentMap) do
                local u = ____value[2]
                nextKnown:set(
                    u.itemName,
                    self:snapshotFromUpdate(u)
                )
            end
            self.lastKnownItems:set(playerID, nextKnown)
        end
        ::__continue18::
    end
end
function ItemDetector.prototype.OnItemPickup(self, event)
    local killedUnit = EntIndexToHScript(event.entindex_killed)
    if killedUnit and killedUnit:GetClassname() == "dota_item_drop" then
        local itemEntity = killedUnit
        local containedItem = itemEntity:GetContainedItem()
        if containedItem ~= nil and containedItem ~= nil then
            local itemName = containedItem:GetAbilityName()
            for ____, ____value in __TS__Iterator(self.lastKnownItems) do
                local playerID = ____value[1]
                local map = ____value[2]
                do
                    if not map:has(itemName) then
                        goto __continue40
                    end
                    map:delete(itemName)
                    local player = PlayerResource:GetPlayer(playerID)
                    if player then
                        CustomGameEventManager:Send_ServerToPlayer(player, "nearby_item_remove", {itemName = itemName})
                    end
                end
                ::__continue40::
            end
        end
    end
end
function ItemDetector.getInstance(self)
    if not ____exports.ItemDetector.instance then
        ____exports.ItemDetector.instance = __TS__New(____exports.ItemDetector)
    end
    return ____exports.ItemDetector.instance
end
return ____exports