Main/resources/[tools]/nordi_billing/billing_client.lua

-- Initialize QBCore
local QBCore = exports['qb-core']:GetCoreObject()

local isUiOpen = false
local cooldown = false

-- Command to open main billing menu
RegisterCommand('bill', function()
    OpenMainBillingMenu()
end, false)

-- Keybind registration
RegisterKeyMapping('bill', 'Open Billing Menu', 'keyboard', 'F7') -- Default key is F7, can be changed in settings

-- Function to open the main billing menu
function OpenMainBillingMenu()
    lib.registerContext({
        id = 'main_billing_menu',
        title = 'Billing System',
        options = {
            {
                title = 'Rechnung erstellen',
                description = 'Sende eine Rechnung an einen Spieler in der Nähe',
                icon = 'file-invoice-dollar',
                onSelect = function()
                    OpenCreateBillMenu()
                end
            },
            {
                title = 'Meine Rechnungen',
                description = 'Sehe & bezahle deine erhaltenen Rechnungen',
                icon = 'money-check',
                onSelect = function()
                    ViewBills()
                end
            }
        }
    })
    
    lib.showContext('main_billing_menu')
end

-- Function to open the create bill menu
function OpenCreateBillMenu()
    if cooldown then
        lib.notify({
            title = 'Billing System',
            description = 'Please wait before using the billing system again',
            type = 'error'
        })
        return
    end
    
    -- Get nearby players
    local players = GetNearbyPlayers()
    if #players == 0 then
        lib.notify({
            title = 'Billing System',
            description = 'No players nearby to bill',
            type = 'error'
        })
        return
    end
    
    -- Get player's accounts for receiving payment
    local accounts = lib.callback.await('ps-banking:server:getAccounts', false) or {}
    local accountOptions = {}
    
    -- Add default bank account
    table.insert(accountOptions, {
        value = 'personal',
        label = 'Personal Bank Account'
    })
    
    -- Add other accounts
    for _, account in ipairs(accounts) do
        table.insert(accountOptions, {
            value = account.id,
            label = account.holder .. ' - ' .. account.cardNumber
        })
    end
    
    -- Show the list of nearby players
    local playerOptions = {}
    for _, player in ipairs(players) do
        table.insert(playerOptions, {
            title = player.name,
            description = 'ID: ' .. player.id,
            icon = 'user',
            onSelect = function()
                -- When a player is selected, show the billing form
                ShowBillingForm(player, accountOptions)
            end
        })
    end
    
    -- Register and show the player selection menu
    lib.registerContext({
        id = 'nearby_players_menu',
        title = 'Select Player to Bill',
        menu = 'main_billing_menu', -- Add back button to main menu
        options = playerOptions
    })
    
    lib.showContext('nearby_players_menu')
end

-- Function to show the billing form after selecting a player
function ShowBillingForm(selectedPlayer, accountOptions)
    local input = lib.inputDialog('Create Bill for ' .. selectedPlayer.name, {
        {
            type = 'number',
            label = 'Amount ($)',
            description = 'Enter the bill amount',
            icon = 'dollar-sign',
            required = true,
            min = 1,
            max = 100000
        },
        {
            type = 'input',
            label = 'Reason',
            description = 'Enter the reason for the bill',
            placeholder = 'Services provided...',
            required = true
        },
        {
            type = 'select',
            label = 'Receiving Account',
            options = accountOptions,
            required = true
        }
    })
    
    if not input then return end
    
    -- Play animation
    PlayBillingAnimation()
    
    -- Send the bill
    local success = lib.callback.await('billing:server:sendBill', false, {
        playerId = selectedPlayer.id,
        amount = input[1],
        reason = input[2],
        account = input[3]
    })
    
    if success then
        lib.notify({
            title = 'Billing System',
            description = 'Bill sent successfully to ' .. selectedPlayer.name,
            type = 'success'
        })
        
        -- Set cooldown
        cooldown = true
        SetTimeout(5000, function()
            cooldown = false
        end)
        
        -- Return to main menu
        OpenMainBillingMenu()
    else
        lib.notify({
            title = 'Billing System',
            description = 'Failed to send bill',
            type = 'error'
        })
    end
end

-- Function to view received bills
function ViewBills()
    local bills = lib.callback.await('ps-banking:server:getBills', false)
    
    if not bills or #bills == 0 then
        lib.notify({
            title = 'Billing System',
            description = 'You have no unpaid bills',
            type = 'info'
        })
        
        -- Return to main menu after a short delay
        SetTimeout(1000, function()
            OpenMainBillingMenu()
        end)
        return
    end
    
    local billOptions = {}
    for _, bill in ipairs(bills) do
        local timestamp = os.date('%Y-%m-%d %H:%M', bill.date)
        table.insert(billOptions, {
            title = bill.description,
            description = ('Amount: $%s | Date: %s'):format(bill.amount, timestamp),
            icon = 'file-invoice',
            metadata = {
                {label = 'Bill ID', value = bill.id},
                {label = 'Type', value = bill.type},
                {label = 'Status', value = bill.isPaid and 'Paid' or 'Unpaid'}
            },
            onSelect = function()
                local confirm = lib.alertDialog({
                    header = 'Pay Bill',
                    content = ('Do you want to pay $%s for %s?'):format(bill.amount, bill.description),
                    centered = true,
                    cancel = true
                })
                
                if confirm == 'confirm' then
                    local success = lib.callback.await('ps-banking:server:payBill', false, bill.id)
                    if success then
                        lib.notify({
                            title = 'Billing System',
                            description = 'Bill paid successfully',
                            type = 'success'
                        })
                        ViewBills() -- Refresh the list
                    else
                        lib.notify({
                            title = 'Billing System',
                            description = 'Failed to pay bill. Insufficient funds.',
                            type = 'error'
                        })
                    end
                end
            end
        })
    end
    
    lib.registerContext({
        id = 'billing_menu',
        title = 'Your Bills',
        menu = 'main_billing_menu', -- Add back button to main menu
        options = billOptions
    })
    
    lib.showContext('billing_menu')
end

-- Helper function to get nearby players
function GetNearbyPlayers()
    local playerPed = PlayerPedId()
    local playerCoords = GetEntityCoords(playerPed)
    local players = {}
    
    -- Get all players
    local allPlayers = GetActivePlayers()
    
    for _, player in ipairs(allPlayers) do
        local targetPed = GetPlayerPed(player)
        local targetCoords = GetEntityCoords(targetPed)
        local distance = #(playerCoords - targetCoords)
        
        if distance <= 5.0 and targetPed ~= playerPed then
            local targetId = GetPlayerServerId(player)
            local targetName = GetPlayerName(player)
            table.insert(players, {id = targetId, name = targetName})
        end
    end
    
    return players
end

-- Animation function
function PlayBillingAnimation()
    lib.requestAnimDict("cellphone@")
    
    -- Request the prop model
    local propModel = 'bzzz_prop_payment_terminal'
    lib.requestModel(propModel)
    
    -- Create prop
    local playerPed = PlayerPedId()
    local coords = GetEntityCoords(playerPed)
    local prop = CreateObject(GetHashKey(propModel), coords.x, coords.y, coords.z, true, true, true)
    
    -- Attach prop to player
    AttachEntityToEntity(prop, playerPed, GetPedBoneIndex(playerPed, 57005), 
        0.18, 0.01, 0.0, -54.0, 220.0, 43.0, 
        true, true, false, true, 1, true)
    
    -- Play animation
    TaskPlayAnim(playerPed, "cellphone@", "cellphone_text_read_base", 2.0, 3.0, -1, 49, 0, false, false, false)
    
    -- Wait for animation to complete
    Wait(5000)
    
    -- Clear animation and delete prop
    ClearPedTasks(playerPed)
    DeleteEntity(prop)
end