---@class Lobby : Object
---@field lobby fk.Room
Lobby = class("Lobby")

fk.lobby_callback = {}
local db = fk.ServerInstance:getDatabase()

function Lobby:initialize(_lobby)
    self.lobby = _lobby
    self.lobby.callback = function(_self, command, jsonData)
        local cb = fk.lobby_callback[command]
        if (type(cb) == "function") then
            cb(jsonData)
        else
            print("Lobby error: Unknown command " .. command);
        end
    end
end

fk.lobby_callback["UpdateAvatar"] = function(jsonData)
    -- jsonData: [ int uid, string newavatar ]
    local data = json.decode(jsonData)
    local id, avatar = data[1], data[2]
    local sql = "UPDATE userinfo SET avatar='%s' WHERE id=%d;"
    Sql.exec(db, string.format(sql, avatar, id))
    local player = fk.ServerInstance:findPlayer(id)
    player:setAvatar(avatar)
    player:doNotify("UpdateAvatar", avatar)
end

fk.lobby_callback["UpdatePassword"] = function(jsonData)
    -- jsonData: [ int uid, string oldpassword, int newpassword ]
    local data = json.decode(jsonData)
    local id, old, new = data[1], data[2], data[3]
    local sql_find = "SELECT password FROM userinfo WHERE id=%d;"
    local sql_update = "UPDATE userinfo SET password='%s' WHERE id=%d;"

    local passed = false
    local result = Sql.exec_select(db, string.format(sql_find, id))
    passed = (result["password"][1] == sha256(old))
    if passed then
        Sql.exec(db, string.format(sql_update, sha256(new), id))
    end

    local player = fk.ServerInstance:findPlayer(tonumber(id))
    player:doNotify("UpdatePassword", passed and "1" or "0")
end

fk.lobby_callback["CreateRoom"] = function(jsonData)
    -- jsonData: [ int uid, string name, int capacity ]
    local data = json.decode(jsonData)
    local owner = fk.ServerInstance:findPlayer(tonumber(data[1]))
    local roomName = data[2]
    local capacity = data[3]
    fk.ServerInstance:createRoom(owner, roomName, capacity)
end

fk.lobby_callback["EnterRoom"] = function(jsonData)
    -- jsonData: [ int uid, int roomId ]
    local data = json.decode(jsonData)
    local player = fk.ServerInstance:findPlayer(tonumber(data[1]))
    local room = fk.ServerInstance:findRoom(tonumber(data[2]))
    room:addPlayer(player)
end

function CreateRoom(_room)
    LobbyInstance = Lobby:new(_room)
end