【进阶实战】举报截图水印：截图溯源的水印方案封装

local function submitReport(actorName, shotHash, targetName, reason)
    actor = getplayerbyname(actorName)
    local dup = getsysvar("Shot_" .. shotHash)
    if dup ~= "" and dup ~= nil then
        sendmsg(actor, 1, "该截图已在处理队列中，请勿重复提交。")
        return false
    end
    local reportId = "RP" .. os.date("%Y%m%d") .. math.random(1000, 9999)
    setsysvarex("Shot_" .. shotHash, reportId, 1)
    setsysvarex("Report_" .. reportId,
        actorName .. "|" .. targetName .. "|" .. reason .. "|pending", 1)
    sendmsg(actor, 1, "举报已受理，编号 " .. reportId .. "，24 小时内处理。")
    return true
end

local function closeReport(reportId, isValid)
    local info = getsysvar("Report_" .. reportId) or ""
    local reporter = string.match(info, "^([^|]+)")
    local status = isValid and "confirmed" or "rejected"
    setsysvarex("Report_" .. reportId,
        string.gsub(info, "|pending$", "|" .. status), 1)
    if not isValid then
        local strikes = tonumber(getplayvar(getplayerbyname(reporter),
            "HUMAN", "FalseReport")) or 0
        setplayvar(getplayerbyname(reporter), "HUMAN", "FalseReport", strikes + 1, 1)
    end
end