【后端接口】装备修理保险柜：预存保费与免单修理的接口设计

local PLANS = { basic = 20000, gold = 50000 }
function buyRepairInsurance(actor, plan)
    local player = class(actor)
    local fee = PLANS[plan]
    if fee == nil then
        sendmsg(actor, 0, "未知保险档位")
        return
    end
    if player:checkitemw("金币", fee) == false then
        sendmsg(actor, 0, plan .. "档保费需" .. fee .. "金币")
        return
    end
    player:takeitem("金币", fee)
    setplayvar(actor, "HUMAN", "INS_MONTH", os.date("%Y%m"), 1)
    setplayvar(actor, "HUMAN", "INS_PLAN", plan, 1)
    sendmsg(actor, 0, "本月修理已免单，保单即时生效")
end

local function claimFreeRepair(actor)
    local player = class(actor)
    if getplayvar(actor, 2, "INS_MONTH") ~= os.date("%Y%m") then
        return false
    end
    local cost = repairCost(30000, 80, "normal")
    local used = tonumber(getplayvar(actor, 2, "INS_USED") or "0") + cost
    setplayvar(actor, "HUMAN", "INS_USED", used, 1)
    if used > PLANS[getplayvar(actor, 2, "INS_PLAN")] * 1.2 then
        sendmsg(actor, 0, "本月免单额度接近上限，超出部分将正常计费")
    end
    return true
end