# Invoice configuration
invoice_data = {
  issuance_date: '12/08/2023',
  due_date: '01/08/2024',
  total: 1000.00
}

# Provider's information
provider_data = {
  name: 'Company Name',
  address: '123 Main Street, City',
  email: 'info@company.com',
  bank_account: '123-456-789',
}

# Purchaser's information
purchaser_data = {
  name: 'Customer Name',
  address: '456 Secondary Street, City',
  email: 'customer@email.com'
}

# Create invoice header
text 'INVOICE', size: 18, style: :bold
move_down 10
text "Issuance Date: #{invoice_data[:issuance_date]}"
text "Due Date: #{invoice_data[:due_date]}"
move_down 20

# Information of Provider and Purchaser in the same row
table([[
  { content: 'Provider Information', colspan: 2, font_style: :bold },
  { content: 'Purchaser Information', colspan: 2, font_style: :bold }
], [
  "Name: #{provider_data[:name]}",
  "Address: #{provider_data[:address]}",
  "Name: #{purchaser_data[:name]}",
  "Address: #{purchaser_data[:address]}"
], [
  "Email: #{provider_data[:email]}",
  "Bank Account: #{provider_data[:bank_account]}",
  "Email: #{purchaser_data[:email]}",
  ""
]], width: 500) do
  cells.borders = []
  columns(0..3).size = 10
end

move_down 20

# Table of Items
items = [
  { description: 'Product 1', price: 250.00, quantity: 2 },
  { description: 'Product 2', price: 150.00, quantity: 3 },
  { description: 'Product 3', price: 100.00, quantity: 1 }
]

table_data = [['Description', 'Price', 'Quantity', 'Total']]
items.each do |item|
  total_item = item[:price] * item[:quantity]
  table_data << [item[:description], item[:price], item[:quantity], total_item]
end

table(table_data, header: true, width: 500) do
  row(0).font_style = :bold
  columns(1..3).align = :center
  columns(0..3).size = 10
end

move_down 20

# Section showing the sum of items
total_general = items.map { |item| item[:price] * item[:quantity] }.sum
text "Total Amount: #{total_general}", size: 14, style: :bold