-- 映射账号（老帐号映射到新账号上）
local skynet = require "skynet"
require "skynet.manager"
local redisdriver = require "skynet.db.redis"
local logger = require "logger"
local queue = require "skynet.queue"
local cjson = require "cjson"
local stringify = require "stringify"
local synchronized = queue()
local namecenter
local usercenter
local skynet_send = skynet.send
local skynet_call = skynet.call
local md5 = require "md5"

local THIS = {}

local state = 0
local redis
local whitelist = {
}

local authz = {acc = "yytx", pwd = "lee@YY-Games.520"}

local content = {acc = authz.acc, pwd = authz.pwd, sign = false}
content.sign = string.sub(md5.sumhexa(content.acc .. content.pwd), 9, 24)


local function initialize()
    state = 1
    local conf = assert(option.redis)
    redis = redisdriver.connect(conf)
    redis:select(0)
    namecenter = skynet.localname(".namecenter")
    usercenter = skynet.localname(".usercenter")
end

-- http://192.168.108.10:9002/exchange_account?code=xxx&type=1&json={"attach":["00-6658977989381873664","00-6659002777164865536"]}
local account = function(args, ipaddr, header)
    return synchronized(function()
        logger.trace("处理来自主机 %s 的GM管理账号映射请求",ipaddr)

        if state == 0 then initialize() end

        --验证gm账号
        local code = string.sub(args.code, 1, 16)
        if code ~= content.sign then
            return cjson.encode({state = 403, msg = "账号或密码错误"})
        end

        if not whitelist[ipaddr] then
            -- return { code=403, msg="Forbidden" }
            -- return cjson.encode({errno = 403, host = header.host, info = "不信任ip"})
        end


        local json = cjson.decode(args.json)
        local attach = json.attach or {}
        local type = args.type
        local new,old = attach[1],attach[2]
        local o_string = string.format("character:%s",old)
        local n_string = string.format("character:%s",new)

        logger.trace(" %s %s %s",type,new,old)



        function THIS.account_ys()
            local o_num = redis:HGET(o_string,'sid')
            local n_num = redis:HGET(n_string,'sid')
            logger.trace("#### ,account_ys   %s  %s",o_num,n_num)

            if o_num ~= n_num then
                logger.trace("#### 账号区服不一致,禁止映射")
                local context = "账号区服不一致,禁止映射"
                return -1,context
            end

            local o_acc =  redis:HGET(o_string,'account')
            local n_acc =  redis:HGET(n_string,'account')

            local migration_account_key = "migration_account:%s:%s" -- 区服+新账号

            local acco_string = string.format(migration_account_key,o_num,o_acc)
            local ret = redis:HGET(acco_string,'account')
            if ret then
                logger.trace("#### 新账号已有映射账号 不可再次映射")
                local context = "新账号已有映射账号 不可再次映射"
                return -1,context
            end

            local accn_string = string.format(migration_account_key,n_num,n_acc)
            ret = redis:HGET(accn_string,'account')
            if ret and ret ~= n_acc then
                logger.trace("#### 老账号已有映射账号 不可再次映射")
                local context = "老账号已有映射账号 不可再次映射"
                return -1,context
            end
            local err = redis:HSET(accn_string,'account',o_acc)
            return err
        end

        --取消绑定
        function THIS.account_qx()

            local n_num = redis:HGET(n_string,'sid')
            local n_acc =  redis:HGET(n_string,'account')
            local migration_account_key = "migration_account:%s:%s" -- 区服+新账号
            logger.trace("#### ,account_qx   server:%s  account:%s ",n_num,n_acc )

            local accn_string = string.format(migration_account_key,n_num,n_acc)
            local ret = redis:HGET(accn_string,'account')
            if not ret then
                logger.trace("#### 账号没有映射账号 不可取消")
                local context = "账号没有映射账号 不可取消"
                return -1,context
            end
            local num = redis:HLEN(accn_string)
            num = (num or 0) + 1
            local add_string = 'account' ..num
            redis:HSET(accn_string,add_string,ret)
            redis:HSET(accn_string,'account',n_acc)
            return 0
        end


        if tonumber(type) == 1 then
            local erron,context = THIS.account_ys()  --映射
            if erron == 1 then
                return cjson.encode({state=0,msg="success"})
            else
                return cjson.encode({state=-1,msg = context})
            end
        elseif tonumber(type) == 2 then
            local erron,context = THIS.account_qx()  --取消
            if erron == 0 then
                return cjson.encode({state=0,msg="success"})
            else
                return cjson.encode({state=-1,msg=context})
            end
        end
    end)
end

return account