local RecommendationService = game:GetService("RecommendationService")

-- 定义生成推荐列表的请求
local request: GenerateRecommendationItemListRequest = {
	ConfigName = "MaximizeEngagement",
	LocationId = "Lobby",
	PageSize = 10
    -- 注意：取消注释并设置 CustomContexts.UserId 以用于服务器脚本。
    -- 本地脚本无需设置。
    -- CustomContexts = {
    --     ["UserId"] = tostring(player.UserId),
    -- }
}

-- 调用 GenerateItemListAsync 获取推荐页面
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("成功检索到项目: " .. item.ItemId)
        print("  ReferenceId: " .. item.ReferenceId)
        -- 获取单个项目时，追踪 ID 将为空
        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("检索项目失败: " .. itemId .. ". 错误: " .. 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 = "Like",
        Weight = 1.0
    }
    RecommendationService:LogActionEvent(Enum.RecommendationActionType.AddReaction, itemId, tracingId, detail)
    print("记录 'Like' 行为的项目: " .. itemId)
end

-- 示例用法（需要从 GenerateItemListAsync 获取有效的 itemId 和 tracingId）
-- logLike("item-id", "tracing-id")

local RecommendationService = game:GetService("RecommendationService")

local function logView(itemId, tracingId)
    local detail: RecommendationImpressionEventDetails = {
        Duration = 5, -- 用户查看了 5 秒
        ItemPosition = 1,
        DepartureIntent = Enum.RecommendationDepartureIntent.Neutral
    }
    RecommendationService:LogImpressionEvent(Enum.RecommendationImpressionType.View, itemId, tracingId, detail)
    print("已记录 'View' 印象，项目: " .. itemId)
end

-- 使用示例 (需要来自 GenerateItemListAsync 的有效 itemId 和 tracingId)
-- logView("some-item-id", "some-tracing-id")

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

-- 假设在 ReplicatedStorage 中存在一个名为 '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 = "测试视频",
				TrimStartTime = 0,
				TrimEndTime = 10.5
			}
		}
    }

    local success, response = pcall(function()
        return RecommendationService:RegisterItemAsync(player, request)
    end)
    if success and response then
        print("成功注册物品。物品ID: " .. response.ItemId)
        return response.ItemId
    else
        warn("注册物品失败。错误: " .. 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("成功移除项目: " .. itemId)
    else
        warn("移除项目失败: " .. itemId .. ". 错误: " .. tostring(err))
    end
end

local RecommendationService = game:GetService("RecommendationService")

local function updateItem(itemId)
    -- 仅包含您想要更新的字段
    local request: UpdateRecommendationItemRequest = {
        ItemId = itemId,
        Visibility = Enum.RecommendationItemVisibility.Private,
        -- 注意：整个 CustomTags 列表将被这个新列表替换
        CustomTags = {"updated-tag"}
    }

    local success, err = pcall(function()
        return RecommendationService:UpdateItemAsync(request)
    end)
    if success then
        print("成功更新项目: " .. itemId)
    else
        warn("更新项目失败: " .. itemId .. ". 错误: " .. tostring(err))
    end
end

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