--[[
Descripttion:兑换码
version:
Author: Neo,Huang
Date: 2023-11-19 21:20:05
LastEditors: Neo,Huang
LastEditTime: 2023-11-19 21:23:40
--]]
local code = require("code")
local timeUtil = require("utils.timeUtil")
local redisUtil = require("utils.redisUtil")
local lib_game_redis = require("lib_game_redis")

local MODULE_KEY = "exchange:code"

local root = {}

local function _get_exchange_code_key(pcode)
    return string.format("%s:%s", tostring(MODULE_KEY), tostring(pcode))
end
-- 获取兑换码配置
function root:get_exchange_code_items(pcode)
    if is_empty(pcode) then
        return code.PARAMTER_ERROR
    end
    local key = _get_exchange_code_key(pcode)
    local isExist = lib_game_redis:exists(key)
    if not isExist then
        -- 兑换码已不存在
        return code.EXCHANGE_CODE.NOT_FOUND
    end

    local awardTimes = redisUtil.hget_int(key, "awardTimes")
    if is_empty(awardTimes) or awardTimes <= 0 then
        -- 已领完
        return code.EXCHANGE_CODE.AWARD_NOT_MORE
    end
    local currTime = timeUtil.now()
    local expireTime = redisUtil.hget_int(key, "expireTime")
    if is_empty(expireTime) or currTime > expireTime then
        -- 活动结束
        return code.EXCHANGE_CODE.TIME_OUT
    end
    return code.OK, redisUtil.hget_json(key, "items")
end

-- 增加领奖次数
function root:add_award_times(pcode)
    local key = _get_exchange_code_key(pcode)
    local isExist = lib_game_redis:exists(key)
    if not isExist then
        -- 兑换码已不存在
        return code.EXCHANGE_CODE.NOT_FOUND
    end
    local subKey = "awardTimes"
    local awardTimes = redisUtil.hincrby(key, subKey, -1)
    if awardTimes < 0 then
        redisUtil.hset(key, subKey, 0)
        -- 已领完
        return code.EXCHANGE_CODE.AWARD_NOT_MORE
    end
    return code.OK
end
----------------------------------------
-- 记录
----------------------------------------
local function _get_record_key()
    return string.format("%s:record", tostring(MODULE_KEY))
end
-- 新增
function root:add_record(uid, items)
    if is_empty(uid) or is_empty(items) then
        return false
    end
    local key = _get_record_key()
    local subKey = "records"
    local records = redisUtil.hget_json(key, subKey)
    table.insert(records, {uid = uid, items = items})
    if #records > 10 then
        table.remove(records, 1)
    end
    redisUtil.hset(key, subKey, records)
    return false
end
-- 获取记录列表
function root:get_records()
    local key = _get_record_key()
    local subKey = "records"
    return redisUtil.hget_json(key, subKey)
end

return root