local RecommendationService = game:GetService("RecommendationService")

-- 定義生成推薦清單的請求
local request: GenerateRecommendationItemListRequest = {
	ConfigName = "MaximizeEngagement",
	LocationId = "Lobby",
	PageSize = 10
    -- 注意：取消註解並設定 CustomContexts.UserId 用於伺服器腳本。
    -- 本地腳本不需要設定。
    -- CustomContexts = {
    --     ["UserId"] = tostring(player.UserId),
    -- }
}

-- 呼叫 GenerateItemListAsync 獲取推薦頁面
local success, recommendationPages = pcall(function()
    return RecommendationService:GenerateItemListAsync(request)
end)

local RecommendationService = game:GetService("RecommendationService")

local function getItem(itemId)
    local success, item = pcall(function()
        return RecommendationService:GetRecommendationItemAsync(itemId)
    end)
    if success and item then
        print("成功獲取項目: " .. item.ItemId)
        print("  ReferenceId: " .. item.ReferenceId)
        -- 在直接獲取單個項目時，TracingId 將為空
        if item.Creator then
            print("  CreatorId: " .. tostring(item.Creator.CreatorId))
        end
        if item.CustomTags then
            print("  CustomTags: ")
            for _, customTag in ipairs(item.CustomTags) do
                print("    " .. customTag)
            end
        end
    else
        warn("無法獲取項目: " .. itemId .. ". 錯誤: " .. tostring(item))
    end
end

-- 示例用法（需要有效的 itemId）
-- getItem("some-item-id")

local RecommendationService = game:GetService("RecommendationService")

local function logLike(itemId, tracingId)
    local detail: RecommendationActionEventDetails = {
        ReactionType = "喜歡",
        Weight = 1.0
    }
    RecommendationService:LogActionEvent(Enum.RecommendationActionType.AddReaction, itemId, tracingId, detail)
    print("已記錄 '喜歡' 行為，項目: " .. itemId)
end

-- 示例用法（需要有效的 itemId 和 tracingId 來自 GenerateItemListAsync）
-- logLike("item-id", "tracing-id")

local RecommendationService = game:GetService("RecommendationService")

local function logView(itemId, tracingId)
    local detail: RecommendationImpressionEventDetails = {
        Duration = 5, -- 使用者查看了 5 秒
        ItemPosition = 1,
        DepartureIntent = Enum.RecommendationDepartureIntent.Neutral
    }
    RecommendationService:LogImpressionEvent(Enum.RecommendationImpressionType.View, itemId, tracingId, detail)
    print("已記錄 '查看' 印象的項目: " .. itemId)
end

-- 示範使用 (需要有效的 itemId 和 tracingId 由 GenerateItemListAsync 提供)
-- logView("some-item-id", "some-tracing-id")

local RecommendationService = game:GetService("RecommendationService")
local storage = game:GetService("ReplicatedStorage")

-- 假設在 ReplicatedStorage 中存在一個名為 'RegisterItemRemote' 的 RemoteFunction
local registerItemRemote = storage.RegisterItemRemote

registerItemRemote.OnServerInvoke = function(player, refId)
    local request: RegisterRecommendationItemRequest = {
        ContentType = Enum.RecommendationItemContentType.Dynamic,
        ReferenceId = refId,
        Duration = 60,
        Visibility = Enum.RecommendationItemVisibility.Public,
        CustomTags = {"locale:en-us", "seasonal:summer"},
        Attributes = {
			{
				AssetId = 123,
				Description = "測試視頻",
				TrimStartTime = 0,
				TrimEndTime = 10.5
			}
		}
    }

    local success, response = pcall(function()
        return RecommendationService:RegisterItemAsync(player, request)
    end)
    if success and response then
        print("成功註冊物品。物品ID: " .. response.ItemId)
        return response.ItemId
    else
        warn("註冊物品失敗。錯誤: " .. tostring(response))
        return nil
    end
end

local RecommendationService = game:GetService("RecommendationService")

local function removeItem(itemId)
    local success, err = pcall(function()
        return RecommendationService:RemoveItemAsync(itemId)
    end)
    if success then
        print("成功移除項目: " .. itemId)
    else
        warn("移除項目失敗: " .. itemId .. ". 錯誤: " .. tostring(err))
    end
end

local RecommendationService = game:GetService("RecommendationService")

local function updateItem(itemId)
    -- 只包括你想要更新的字段
    local request: UpdateRecommendationItemRequest = {
        ItemId = itemId,
        Visibility = Enum.RecommendationItemVisibility.Private,
        -- 注意: 整個 CustomTags 列表將被這個新列表替換
        CustomTags = {"updated-tag"}
    }

    local success, err = pcall(function()
        return RecommendationService:UpdateItemAsync(request)
    end)
    if success then
        print("成功更新項目: " .. itemId)
    else
        warn("無法更新項目: " .. itemId .. ". 錯誤: " .. tostring(err))
    end
end

-- 示例用法
-- updateItem("some-item-id-to-update")