FreeKill/lua/client/client.lua

---@class Client
---@field client fk.Client
---@field players ClientPlayer[]
Client = class('Client')

-- load client classes
ClientPlayer = require "client.clientplayer"
dofile "lua/client/client_util.lua"

fk.client_callback = {}

function Client:initialize()
    self.client = fk.ClientInstance
    self.notifyUI = function(self, command, jsonData)
        fk.Backend:emitNotifyUI(command, jsonData)
    end
    self.client.callback = function(_self, command, jsonData)
        local cb = fk.client_callback[command]
        if (type(cb) == "function") then
            cb(jsonData)
        else
            self:notifyUI(command, jsonData);
        end
    end

    self.players = {}       -- ClientPlayer[]
end

---@param id integer
---@return ClientPlayer
function Client:findPlayer(id)
    for _, p in ipairs(self.players) do
        if p.player:getId() == id then return p end
    end
    return nil
end

fk.client_callback["Setup"] = function(jsonData)
    -- jsonData: [ int id, string screenName, string avatar ]
    local data = json.decode(jsonData)
    local id, name, avatar = data[1], data[2], data[3]
    local self = fk.Self
    self:setId(id)
    self:setScreenName(name)
    self:setAvatar(avatar)
    Self = ClientPlayer:new(fk.Self)
    table.insert(ClientInstance.players, Self)
end

fk.client_callback["AddPlayer"] = function(jsonData)
    -- jsonData: [ int id, string screenName, string avatar ]
    -- when other player enter the room, we create clientplayer(C and lua) for them
    local data = json.decode(jsonData)
    local id, name, avatar = data[1], data[2], data[3]
    local player = fk.ClientInstance:addPlayer(id, name, avatar)
    table.insert(ClientInstance.players, ClientPlayer:new(player))
    ClientInstance:notifyUI("AddPlayer", jsonData)
end

fk.client_callback["RemovePlayer"] = function(jsonData)
    -- jsonData: [ int id ]
    local data = json.decode(jsonData)
    local id = data[1]
    for _, p in ipairs(ClientInstance.players) do
        if p.player:getId() == id then
            table.removeOne(ClientInstance.players, p)
            break
        end
    end
    fk.ClientInstance:removePlayer(id)
    ClientInstance:notifyUI("RemovePlayer", jsonData)
end

fk.client_callback["ArrangeSeats"] = function(jsonData)
    local data = json.decode(jsonData)
    local n = #ClientInstance.players
    local players = {}

    for i = 1, n do
        table.insert(players, ClientInstance:findPlayer(data[i]))
    end
    ClientInstance.players = players

    ClientInstance:notifyUI("ArrangeSeats", jsonData)
end

fk.client_callback["PropertyUpdate"] = function(jsonData)
    -- jsonData: [ int id, string property_name, value ]
    local data = json.decode(jsonData)
    local id, name, value = data[1], data[2], data[3]
    ClientInstance:findPlayer(id)[name] = value
    ClientInstance:notifyUI("PropertyUpdate", jsonData)
end

--- separated moves to many moves(one card per move)
---@param moves CardsMoveStruct[]
local function separateMoves(moves)
    local ret = {}  ---@type CardsMoveInfo[]
    for _, move in ipairs(moves) do
        for _, info in ipairs(move.moveInfo) do
            table.insert(ret, {
                ids = {info.cardId},
                from = move.from,
                to = move.to,
                toArea = move.toArea,
                fromArea = info.fromArea,
            })
        end
    end
    return ret
end

--- merge separated moves (one fromArea per move)
local function mergeMoves(moves)
    local ret = {}
    local temp = {}
    for _, move in ipairs(moves) do
        if temp[move.fromArea] == nil then 
            temp[move.fromArea] = {
                ids = {},
                from = move.from,
                to = move.to,
                fromArea = move.fromArea,
                toArea = move.toArea
            }
        end
        table.insert(temp[move.fromArea].ids, move.ids[1])
    end
    for _, v in pairs(temp) do
        table.insert(ret, v)
    end
    return ret
end

fk.client_callback["MoveCards"] = function(jsonData)
    -- jsonData: CardsMoveStruct[]
    local raw_moves = json.decode(jsonData)
    local separated = separateMoves(raw_moves)
    local merged = mergeMoves(separated)
    ClientInstance:notifyUI("MoveCards", json.encode(merged))
end

-- Create ClientInstance (used by Lua)
ClientInstance = Client:new()