ESX_Shops

local Keys = {
    ["ESC"] = 322, ["F1"] = 288, ["F2"] = 289, ["F3"] = 170, ["F5"] = 166, ["F6"] = 167, ["F7"] = 168, ["F8"] = 169, ["F9"] = 56, ["F10"] = 57,
    ["~"] = 243, ["1"] = 157, ["2"] = 158, ["3"] = 160, ["4"] = 164, ["5"] = 165, ["6"] = 159, ["7"] = 161, ["8"] = 162, ["9"] = 163, ["-"] = 84, ["="] = 83, ["BACKSPACE"] = 177,
    ["TAB"] = 37, ["Q"] = 44, ["W"] = 32, ["E"] = 38, ["R"] = 45, ["T"] = 245, ["Y"] = 246, ["U"] = 303, ["P"] = 199, ["["] = 39, ["]"] = 40, ["ENTER"] = 18,
    ["CAPS"] = 137, ["A"] = 34, ["S"] = 8, ["D"] = 9, ["F"] = 23, ["G"] = 47, ["H"] = 74, ["K"] = 311, ["L"] = 182,
    ["LEFTSHIFT"] = 21, ["Z"] = 20, ["X"] = 73, ["C"] = 26, ["V"] = 0, ["B"] = 29, ["N"] = 249, ["M"] = 244, [","] = 82, ["."] = 81,
    ["LEFTCTRL"] = 36, ["LEFTALT"] = 19, ["SPACE"] = 22, ["RIGHTCTRL"] = 70,
    ["HOME"] = 213, ["PAGEUP"] = 10, ["PAGEDOWN"] = 11, ["DELETE"] = 178,
    ["LEFT"] = 174, ["RIGHT"] = 175, ["TOP"] = 27, ["DOWN"] = 173,
    ["NENTER"] = 201, ["N4"] = 108, ["N5"] = 60, ["N6"] = 107, ["N+"] = 96, ["N-"] = 97, ["N7"] = 117, ["N8"] = 61, ["N9"] = 118
}

ESX                           = nil
local HasAlreadyEnteredMarker = false
local LastZone                = nil
local CurrentAction           = nil
local CurrentActionMsg        = ''
local CurrentActionData       = {}

Citizen.CreateThread(function()
    while ESX == nil do
        TriggerEvent('esx:getSharedObject', function(obj) ESX = obj end)
        Citizen.Wait(0)
    end

    Citizen.Wait(5000)

    ESX.TriggerServerCallback('esx_shops:requestDBItems', function(ShopItems)
        for k,v in pairs(ShopItems) do
            Config.Zones[k].Items = v
        end
    end)
end)

function OpenShopMenu(zone)
    local elements = {}
    for i=1, #Config.Zones[zone].Items, 1 do
        local item = Config.Zones[zone].Items[i]

        if item.limit == -1 then
            item.limit = 100
        end

        table.insert(elements, {
            label      = ('%s - <span style="color:green;">%s</span>'):format(item.label, _U('shop_item', ESX.Math.GroupDigits(item.price))),
            label_real = item.label,
            item       = item.item,
            price      = item.price,

            -- menu properties
            value      = 1,
            type       = 'slider',
            min        = 1,
            max        = item.limit
        })
    end

    ESX.UI.Menu.CloseAll()
    ESX.UI.Menu.Open('default', GetCurrentResourceName(), 'shop', {
        title    = _U('shop'),
        align    = 'bottom-right',
        elements = elements
    }, function(data, menu)
        ESX.UI.Menu.Open('default', GetCurrentResourceName(), 'shop_confirm', {
            title    = _U('shop_confirm', data.current.value, data.current.label_real, ESX.Math.GroupDigits(data.current.price * data.current.value)),
            align    = 'bottom-right',
            elements = {
                {label = _U('no'),  value = 'no'},
                {label = _U('yes'), value = 'yes'}
            }
        }, function(data2, menu2)
            if data2.current.value == 'yes' then
                TriggerServerEvent('esx_shops:buyItem', data.current.item, data.current.value, zone)
            end

            menu2.close()
        end, function(data2, menu2)
            menu2.close()
        end)
    end, function(data, menu)
        menu.close()

        CurrentAction     = 'shop_menu'
        CurrentActionMsg  = _U('press_menu')
        CurrentActionData = {zone = zone}
    end)
end

AddEventHandler('esx_shops:hasEnteredMarker', function(zone)
    CurrentAction     = 'shop_menu'
    CurrentActionMsg  = _U('press_menu')
    CurrentActionData = {zone = zone}
end)

AddEventHandler('esx_shops:hasExitedMarker', function(zone)
    CurrentAction = nil
    ESX.UI.Menu.CloseAll()
end)

-- Display markers
Citizen.CreateThread(function()
    while true do
        Citizen.Wait(0)
        local coords = GetEntityCoords(PlayerPedId())

        for k,v in pairs(Config.Zones) do
            for i = 1, #v.Pos, 1 do
                if(Config.Type ~= -1 and GetDistanceBetweenCoords(coords, v.Pos[i].x, v.Pos[i].y, v.Pos[i].z, true) < Config.DrawDistance) then
                    DrawMarker(Config.Type, v.Pos[i].x, v.Pos[i].y, v.Pos[i].z, 0.0, 0.0, 0.0, 0, 0.0, 0.0, Config.Size.x, Config.Size.y, Config.Size.z, Config.Color.r, Config.Color.g, Config.Color.b, 100, false, true, 2, false, false, false, false)
                end
            end
        end
    end
end)

-- Enter / Exit marker events
Citizen.CreateThread(function()
    while true do
        Citizen.Wait(0)
        local coords      = GetEntityCoords(PlayerPedId())
        local isInMarker  = false
        local currentZone = nil

        for k,v in pairs(Config.Zones) do
            for i = 1, #v.Pos, 1 do
                if(GetDistanceBetweenCoords(coords, v.Pos[i].x, v.Pos[i].y, v.Pos[i].z, true) < Config.Size.x) then
                    isInMarker  = true
                    ShopItems   = v.Items
                    currentZone = k
                    LastZone    = k
                end
            end
        end
        if isInMarker and not HasAlreadyEnteredMarker then
            HasAlreadyEnteredMarker = true
            TriggerEvent('esx_shops:hasEnteredMarker', currentZone)
        end
        if not isInMarker and HasAlreadyEnteredMarker then
            HasAlreadyEnteredMarker = false
            TriggerEvent('esx_shops:hasExitedMarker', LastZone)
        end
    end
end)

-- Key Controls
Citizen.CreateThread(function()
    while true do
        Citizen.Wait(0)

        if CurrentAction ~= nil then
            ESX.ShowHelpNotification(CurrentActionMsg)

            if IsControlJustReleased(0, Keys['E']) then
                if CurrentAction == 'shop_menu' then
                    OpenShopMenu(CurrentActionData.zone)
                end

                CurrentAction = nil
            end
        else
            Citizen.Wait(500)
        end
    end
end)