local skynet = require "skynet"
require "skynet.manager"
local redisdriver = require "skynet.db.redis"
local util = require "util"
local common_fun = require "model.common_fun"
local pipeline = require "pipeline"
local logger = require "logger"
local stringify = require "stringify"
local httpc = require "http.httpc"
local cjson     = require "cjson"


local db_list 
local db_character

local KEY_STR = "statistics"
local math_min = math.min
local math_max = math.max

local CMD = {}
local next_collect = 0
local function time_key(tm)
    return os.date("%Y%m%d", tm)
end

local function check_next()
    if next_collect == 0 then
        next_collect = util.today()
    end
    local key = time_key(next_collect-DAY_SEC)
    if db_list:hexists(KEY_STR, key) == 1 then
        next_collect = next_collect + DAY_SEC
    else
        next_collect = next_collect
    end
end

local function init()
    local conf = assert(option.redis)
    db_character = redisdriver.connect(conf)
    db_character:select(0)
    db_list = redisdriver.connect(conf)
    db_list:select(11)
    check_next()
end

local function myfloor(num)
    return math.floor(num*100)/100
end

local function collect(tm)
    local time = tm
    local keys = common_fun.redis_keys_wait(db_character, "character:*")
    local block = pipeline(1024)
    if next(keys) then
      for _, k in pairs(keys) do
        block.add("hmget", k, "nickname", "uid", "level", "lastlogin", "lastlogout", "createtime")
      end
    end
    local list = {
        create = 0,         -- 激活用户
        dau = 0,            -- 日活
        wau = 0,            -- 周活
        mau = 0,            -- 月活
        lost = 0,           -- 流失
        login = 0,          -- 再次登录的玩家
        keep = 0,           -- 次日留存
        keep3 = 0,          -- 3日留存
        keep7 = 0,          -- 7日留存
        keep30 = 0,         -- 30日留存
        all = 0,            -- 总人数
        rcg_player = 0,     -- 充值人数(每日)
        rcg_money = 0,      -- 充值金额(每日)
        arpu = 0,           -- 付费玩家价值(每日)
        rcg_money30 = 0,    -- 充值金额(每月)
        ltv = 0,            -- 价值
    }

    local resp = block.execute(db_character, {})    
    for _, v in ipairs(resp) do
        assert(v.ok)
        local rs = v.out
        if rs[2] then
            local name = rs[1]
            local uid = rs[2]
            local level = tonumber(rs[3])
            local lastlogin = tonumber(rs[4]) or 0
            local lastlogout = tonumber(rs[5]) or 0
            local createtime = tonumber(rs[6]) or 0
            -- 当日激活
            if createtime >= time and createtime < time + DAY_SEC then
                list.create = list.create + 1
            end

            if lastlogin - createtime > 10 then
                list.login = list.login + 1
            end

            if createtime < time + DAY_SEC then
                local temp = math_min(time - lastlogout, time - lastlogin)
                if temp < 0 then
                    list.dau = list.dau + 1
                end

                if temp < 6 * DAY_SEC then
                    list.wau = list.wau + 1
                end
                
                if temp < 29 * DAY_SEC then
                    list.mau = list.mau + 1
                end

                if temp > 30 * DAY_SEC then
                    list.lost = list.lost + 1
                end

                local temp2 = math_max(math_min(lastlogin, time + DAY_SEC), math_min(lastlogout, time + DAY_SEC)) - createtime
                if temp2 > DAY_SEC then
                    list.keep = list.keep + 1
                end

                if temp2 > 2 * DAY_SEC then
                    list.keep3 = list.keep3 + 1
                end

                if temp2 > 6 * DAY_SEC then
                    list.keep7 = list.keep7 + 1
                end

                if temp2 > 29 * DAY_SEC then
                    list.keep30 = list.keep30 + 1
                end
                list.all = list.all + 1
            end
        end
    end
    local ok,herrno,info = pcall(httpc.post, RECHARGE_SERVICE, '/recharge_info', {
        serverid = option.sid,
        starttime = time,
    })

    if herrno ~= 200 then
        logger.trace("查询充值失败.errno %s", herrno)
        return
    end

    -- info 解码
    local order = cjson.decode(info)
    if order.erron ~= 0 then
        logger.trace("查询充值失败 %s", stringify(order))
        return
    end

    list.rcg_player = order.data.day_player or 0
    list.rcg_money = order.data.day_recharge or 0
    list.rcg_money30 = order.data.month_recharge or 0
    if list.create > 0 then
        list.keep = myfloor(list.keep/list.create)
        list.keep3 = myfloor(list.keep3/list.create)
        list.keep7 = myfloor(list.keep7/list.create)
        list.keep30 = myfloor(list.keep30/list.create)
    else
        list.keep = "NaN"
        list.keep3 = "NaN"
        list.keep7 = "NaN"
        list.keep30 = "NaN"
    end

    if list.rcg_player > 0 then
        list.arpu = list.rcg_money/list.rcg_player
    else
        list.arpu = "NaN"
    end

    db_list:hset(KEY_STR, time_key(tm), cjson.encode(list))
    return list
end


local function watchtime()
    skynet.fork(function()
        while(true) do
            if os.time() >= next_collect then
                collect(next_collect-DAY_SEC)
                check_next()
            end
            skynet.sleep(6000)
        end
    end)
end

local key_index = {
    "create",
    "dau",
    "wau",
    "mau",
    "lost",
    "login",
    "keep",
    "keep3",
    "keep7",
    "keep30",
    "all",
    "rcg_player",
    "rcg_money",
    "rcg_money30",
    "arpu",
    "ltv",
}
function CMD.get_statistics_data(time)
    local activitytime = skynet.localname(".activitytime")
    local open_time = skynet.call(activitytime, "lua", "query")

    local now = util.today()
    if not time then 
        time = now
    end

    local start_time = util.month_one(time)
    local end_time = util.month_one(start_time+31*DAY_SEC)-DAY_SEC
    if start_time < open_time then
        start_time = util.today(open_time)
    end
    if end_time >= now then
        end_time = now - DAY_SEC
    end

    local ret = {} 
    ret[1] = common_fun.scopy(key_index)
    table.insert(ret[1], 1, "date")
    for i = start_time, end_time, DAY_SEC do
        local key = time_key(i)
        local data
        if db_list:hexists(KEY_STR, key) == 1 then
            data = cjson.decode(db_list:hget(KEY_STR, key))
        else
            data = collect(i)
        end
        local temp = {key}
        for _, v in pairs(key_index) do
            local value = data and tostring(data[v])
            if not value or value == 'nil' then
                value = 'NaN'
            end
            table.insert(temp, value)
        end
        table.insert(ret, temp)                
    end
    return ret
end

function CMD.start()
    init()
    watchtime()
end

skynet.init(function()
    skynet.register(".statistics")
end)
  
skynet.start(function()
    skynet.dispatch("lua", function(session, _, cmd, ...)
        local f = assert(CMD[cmd])
        if 0==session then
            f(...)
        else
            skynet.retpack(f(...))
        end
    end)
end)