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local ftcsv = require("ftcsv")
local refnum = require("laskuri.refnum")
local utils = require("laskuri.utils")
local pprint = require("pprint")
dofile("settings.lua")
-- Load data from the file `invoices.csv`
local data = ftcsv.parse("invoices.csv", ",")
-- Do some preprocessing for each row
local num_fields = { "Amount", "Price", "Vat" }
for _, row in pairs(data) do
-- Convert applicable fields to lua numbers
for _, field in pairs(num_fields) do
row[field] = tonumber(row[field])
end
-- Calculate tax and final price for each row
row.Tax = row.Price * (row.Vat / 100.0)
row.FinalPrice = row.Price + row.Tax
end
-- Group the data (rows) by the invoice number.
local invoices = utils.group_by(data, function(invoice)
return invoice.InvoiceNr
end)
-- Calculate some needed data for each invoice including price, final price, due
-- date and reference number
for invoice_nr, rows in pairs(invoices) do
local price = 0.0
local final_price = 0.0
local tax = 0.0
for _, row in pairs(rows) do
price = price + row.Price
final_price = final_price + row.FinalPrice
tax = tax + row.Tax
end
rows.data = {
Price = price,
FinalPrice = final_price,
Tax = tax,
Due = utils.due_date(14, date_fmt),
ReferenceNum = refnum.refnum(invoice_nr),
}
end
local today = os.date(date_fmt)
-- pprint.pprint(invoices)
function to_filename(s)
return string.gsub(s, "[^%w]", "_")
end
for invoice_nr, invoice in pairs(invoices) do
doc = Document:New()
doc:SetCompressionMode("all")
doc:UseUTFEncodings()
page = doc:AddPage()
page:SetSize("A4", "portrait")
font = doc:LoadTTFontFromFile("fonts/Roboto/Roboto-Regular.ttf", true, "UTF-8")
font_bold = doc:LoadTTFontFromFile("fonts/Roboto/Roboto-Bold.ttf", true, "UTF-8")
page:CreateGrid(15, 50)
-- page:DrawGrid()
page:BeginText()
page:SetFontAndSize(font, 12)
page:TextCell(0, 0, 3, 1, invoicer, "left")
page:SetFontAndSize(font, 10)
page:TextCell(0, 1, 3, 1, address_line_1, "left")
page:TextCell(0, 2, 3, 1, address_line_2, "left")
page:SetFontAndSize(font_bold, 14)
page:TextCell(8, 0, 3, 1, "LASKU", "left")
page:SetFontAndSize(font, 9)
page:TextCell(8, 2, 3, 1, "Laskun päiväys:", "left")
page:TextCell(8, 3, 3, 1, today, "left")
page:TextCell(8, 4, 3, 1, "Laskunumero:", "left")
page:TextCell(8, 5, 3, 1, invoice_nr, "left")
page:TextCell(8, 6, 3, 1, "Eräpäivä:", "left")
page:TextCell(8, 7, 3, 1, invoice.data.Due, "left")
page:SetFontAndSize(font_bold, 10)
page:TextCell(0, 5, 3, 1, invoice[1].Customer, "left")
page:SetFontAndSize(font, 10)
page:TextCell(0, 10, 3, 1, "Nimike", "left")
page:TextCell(3, 10, 2, 1, "Määrä", "right")
page:TextCell(5, 10, 2, 1, "Yks.", "left")
page:TextCell(7, 10, 2, 1, "A'hinta EUR", "right")
page:TextCell(9, 10, 2, 1, "Alv %", "right")
page:TextCell(11, 10, 3, 1, "Verollinen yht. EUR", "right")
product_row = 11
for idx = 1, #invoice do
product = invoice[idx]
local row = product_row + idx - 1
page:TextCell(0, row, 3, 1, product.Product, "left")
page:TextCell(3, row, 2, 1, string.format("%d", product.Amount), "right")
page:TextCell(5, row, 2, 1, product.Unit, "left")
page:TextCell(7, row, 2, 1, string.format("%.2f", product.Price), "right")
page:TextCell(9, row, 2, 1, string.format("%d", product.Vat), "right")
page:TextCell(11, row, 3, 1, string.format("%.2f", product.FinalPrice), "right")
end
page:SetFontAndSize(font_bold, 10)
page:TextCell(7, 38, 4, 1, "Veroton yhteensä EUR", "right")
page:TextCell(7, 39, 4, 1, "ALV yhteensä EUR", "right")
page:TextCell(7, 40, 4, 1, "Verollinen yhteensä EUR", "right")
page:SetFontAndSize(font, 10)
page:TextCell(11, 38, 3, 1, string.format("%.2f", invoice.data.Price), "right")
page:TextCell(11, 39, 3, 1, string.format("%.2f", invoice.data.Tax), "right")
page:TextCell(11, 40, 3, 1, string.format("%.2f", invoice.data.FinalPrice), "right")
page:TextCell(0, 43, 7, 1, "IBAN:", "left")
page:TextCell(0, 44, 7, 1, iban, "left")
page:TextCell(7, 43, 4, 1, "BIC / SWIFT:", "left")
page:TextCell(7, 44, 4, 1, bic_swift, "left")
page:TextCell(11, 43, 3, 1, "Eräpäivä:", "left")
page:TextCell(11, 44, 3, 1, invoice.data.Due, "left")
page:TextCell(0, 45, 7, 1, "Viitenumero:", "left")
page:SetFontAndSize(font_bold, 10)
page:TextCell(0, 46, 7, 1, invoice.data.ReferenceNum, "left")
page:SetFontAndSize(font, 10)
page:TextCell(7, 45, 7, 1, "Yhteensä EUR:", "left")
page:SetFontAndSize(font_bold, 10)
page:TextCell(7, 46, 7, 1, string.format("%.2f", invoice.data.FinalPrice), "left")
page:SetFontAndSize(font, 10)
page:TextCell(0, 47, 7, 1, invoicer, "left")
page:TextCell(0, 48, 7, 1, address_line_1, "left")
page:TextCell(0, 49, 7, 1, address_line_2, "left")
page:TextCell(7, 47, 2, 1, "Y-tunnus:", "left")
page:TextCell(9, 47, 5, 1, business_id, "left")
page:TextCell(7, 48, 2, 1, "WWW:", "left")
page:TextCell(9, 48, 5, 1, www_address, "left")
page:EndText()
filename = to_filename(invoice_nr .. " " .. invoice[1].Customer)
doc:Save(filename .. ".pdf")
end
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