Part 1 done

day_2/answer1

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+Sum of valid game ids: 2486

day_2/lua/autorun/solsd_init.lua

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+if SERVER then
+	util.AddNetworkString("AOC:OpenMenu")
+	util.AddNetworkString("AOC:Part1")
+	util.AddNetworkString("AOC:Part2")
+end

day_2/lua/entities/solver/cl_init.lua

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+include("shared.lua")
+
+function ENT:Draw()
+	self:DrawModel()
+end
+
+net.Receive("AOC:OpenMenu", function()
+	local ent = net.ReadEntity()
+
+    local win_w = 400
+    local win_h = 300
+
+    local margin = 10
+    local btn_h = 35
+    local btn_w = (win_w - margin * 3) / 2
+
+	local main = vgui.Create("DFrame")
+	main:SetPos(ScrW() / 2, ScrH() / 2)
+	main:SetSize(win_w, win_h)
+	main:SetTitle("Advent of code 2023")
+	main:SetVisible(true)
+	main:SetDraggable(true)
+	main:ShowCloseButton(true)
+	main:MakePopup()
+
+    local input = vgui.Create("DTextEntry", main)
+    input:SetPos(margin, 25 + margin)
+    input:SetSize(win_w - margin * 2, win_h - btn_h - margin * 3 - 25)
+    input:SetEnterAllowed(true)
+    input:SetMultiline(true)
+
+	local part1 = vgui.Create("DButton",main)
+	part1:SetText("Part 1")
+	part1:SetPos(margin, win_h - btn_h - margin)
+	part1:SetSize(btn_w, btn_h)
+	part1.DoClick = function()
+		net.Start("AOC:Part1")
+			net.WriteEntity(self)
+            net.WriteString(input:GetValue())
+		net.SendToServer()
+	end
+
+	local part2 = vgui.Create("DButton",main)
+	part2:SetText("Part 2")
+	part2:SetPos(btn_w + margin * 2, win_h - btn_h - margin)
+	part2:SetSize(btn_w, btn_h)
+	part2.DoClick = function()
+		net.Start("AOC:Part2")
+			net.WriteEntity(self)
+            net.WriteString(input:GetValue())
+		net.SendToServer()
+	end
+end)

day_2/lua/entities/solver/init.lua

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+AddCSLuaFile("shared.lua")
+AddCSLuaFile("cl_init.lua")
+include("shared.lua")
+
+function ENT:Initialize()
+
+	self:SetModel("models/bull/dynamicbutton.mdl")
+	self:PhysicsInit(SOLID_VPHYSICS)
+	self:SetMoveType(MOVETYPE_VPHYSICS)
+	self:SetSolid(SOLID_VPHYSICS)
+	self:SetUseType(SIMPLE_USE)
+
+	local phys = self:GetPhysicsObject()
+
+	if IsValid(phys) then
+		phys:Wake()
+		phys:SetMass(1)
+	end
+end
+
+function ENT:OnTakeDamage(damage)
+	self:SetHealth(self:Health() - damage:GetDamage())
+	if self:Health() <= 0 then
+		self:Remove()
+	end
+end
+
+function ENT:Think()
+	self:NextThink( CurTime() + 5 )
+	return true
+end
+
+function ENT:OnRemove()
+end
+
+function ENT:Use(activator,caller)
+	if IsValid(caller) and caller:IsPlayer() then
+		net.Start("AOC:OpenMenu", false)
+			net.WriteEntity(self)
+		net.Send(caller)
+ 	else return end
+end
+
+function split (inputstr, sep)
+    if sep == nil then
+        sep = "%s"
+    end
+
+    local t={}
+
+    for str in string.gmatch(inputstr, "([^"..sep.."]+)") do
+        table.insert(t, str)
+    end
+
+    return t
+end
+
+local Game = {
+    id = 0,
+    plays = {}
+}
+Game.__index = Game
+
+function Game:new(id)
+    local game = {}
+    setmetatable(game, Game)
+    game.id = id
+    game.draws = {}
+    return game
+end
+
+local Draw = {
+    red = 0,
+    green = 0,
+    blue = 0,
+}
+Draw.__index = Draw
+
+function Draw:new()
+    local draw = {}
+    setmetatable(draw, Draw)
+    return draw
+end
+
+function parseGame(line)
+    local id = line:match('%d+')
+    local game_obj = Game:new(id)
+
+    local _, result_idx = line:find('Game %d+: ')
+    local results = line:sub(result_idx + 1)
+
+    local draws = split(results, ';')
+    for _, draw in pairs(draws) do
+        local draw_obj = Draw:new()
+
+        local cubes = split(draw, ',')
+        for _, cube in pairs(cubes) do
+            local n, color = cube:match('(%d+) (%a+)')
+            draw_obj[color] = tonumber(n)
+        end
+
+        table.insert(game_obj.draws, draw_obj)
+    end
+
+    return game_obj
+end
+
+net.Receive("AOC:Part1", function()
+    local ent = net.ReadEntity()
+    local input = net.ReadString()
+
+    local max_red = 12
+    local max_grn = 13
+    local max_blu = 14
+
+    local id_sum = 0
+    for i, line in pairs(split(input, '\n')) do
+        local game = parseGame(line)
+        print('Game '..game.id)
+        local valid = true
+        for i, play in pairs(game.draws) do
+            print('  play '..i)
+            print('    red: '..play.red)
+            print('    grn: '..play.green)
+            print('    blu: '..play.blue)
+
+            if play.red > max_red or play.green > max_grn or play.blue > max_blu then
+                valid = false
+            end
+        end
+        if valid then
+            print('--Valid--')
+            id_sum = id_sum + game.id
+        end
+    end
+
+    print('Sum of valid game ids: '..id_sum)
+end)
+
+net.Receive("AOC:Part2", function()
+    local ent = net.ReadEntity()
+    local input = net.ReadString()
+
+    print('Part 2')
+    print(input)
+end)

day_2/lua/entities/solver/shared.lua

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+ENT.Type = "anim"
+ENT.Base = "base_gmodentity"
+
+ENT.PrintName = "Solver"
+ENT.Spawnable = true
+ENT.Category = "Advent of Code 2023"
+
+
+function ENT:SetupDataTables()
+	self:NetworkVar("String", "", "Input")
+end