<?php

use Kenod\InvoiceGenerator\InvoiceGenerator;

// Create new invoice generator
$invoice = new InvoiceGenerator();

// Set supplier information
$invoice->getSupplier()
    ->setCompany('My Company s.r.o.')
    ->setStreet('Main Street 123')
    ->setCity('Prague')
    ->setPostalCode('110 00')
    ->setCompanyId('12345678')
    ->setTaxId('CZ12345678');

// Set customer information
$invoice->getCustomer()
    ->setCompany('Customer Ltd.')
    ->setStreet('Customer Street 456')
    ->setCity('Brno')
    ->setPostalCode('602 00');

// Set invoice details
$invoice->getInformation()
    ->setIssueDate('2024-03-15')
    ->setDueDate('2024-03-30')
    ->setTaxableSupplyDate('2024-03-15');

// Set payment details
$invoice->getPaymentDetails()
    ->setPaymentMethod('Bank transfer')
    ->setAccountNumber('123456789/0100')
    ->setVariableSymbol('2024001');

// Configure settings
$invoice->getSettings()
    ->setInvoiceNumber('2024001')
    ->setVatPayer(true)
    ->setCurrency('CZK')
    ->setLanguage('cs');

// Add invoice items
$invoice->addItem('Web Development', 40, 1500, 'hours', 21);
$invoice->addItem('Hosting Services', 1, 500, 'month', 21);

// Generate and output PDF
$invoice->generate();

// Generate and output the PDF
$invoice->generate(bool $output = true): bool

// Add an invoice item
$invoice->addItem(
    string $name,           // Item name/description
    float $quantity,        // Quantity
    float $price,          // Unit price (without VAT if VAT payer)
    string $unit = 'pcs',  // Unit of measurement
    float $vat = 0,        // VAT rate (e.g., 21 for 21%)
    string $note = '',     // Additional note
    int|null $ean = null   // EAN barcode
): bool

// Get total price after generation
$invoice->getTotalPrice(): float

// Get final prices with VAT breakdown
$invoice->getFinalPrices(): array
// Returns: ['total' => float, 'vat_summary' => [...]]

// Clear all data for new invoice
$invoice->clearData(): void

// Output PDF directly (advanced usage)
$invoice->outputPDF(string $name = '', string $dest = ''): string

// Set invoice number
->setInvoiceNumber(string $value): self

// Set document type
->setDocumentType(string|int $type): self
// Values: 1/'faktura', 2/'proforma', 3/'odd', 4/'storno'

// Set whether company is VAT payer
->setVatPayer(bool $value): self

// Set currency
->setCurrency(string $currency): self
// Default: 'CZK'

// Set language
->setLanguage(string $language): self
// Available: 'cs', 'sk', 'en'

// Set custom document name
->setDocumentName(string $name): self

// Set PDF author
->setAuthor(string $author): self

// Set PDF title
->setTitle(string $title): self

// Set output filename
->setFilename(string $filename): self

// Set output type
->setOutputType(string $type): self
// Values: 'I' (inline), 'D' (download), 'F' (file),
//         'FI' (file+inline), 'FD' (file+download),
//         'E' (email), 'S' (string)

// Set discount
->setDiscount(
    float $discount,        // Discount amount or percentage
    int $type = 0,         // 0=amount, 1=percentage
    int $displayLocation = 1, // 0=between items, 1=at total, 2=both
    int $showZero = 0,     // 0=only non-zero, 1=always show
    float $vatRate = 0     // VAT rate to apply discount to
): self

// Set rounding
->setRounding(
    int $value,            // 0=none, 1=crowns, 2=fifties
    int $type = 1,        // 1=display only, 2=calculate too, 3=round total
    int $method = 1,      // 1=mathematical, 2=up, 3=down
    int $distribution = 1, // 1=highest rate, 2=lowest, 3=highest total, 4=zero rate
    bool $asItem = true   // Count rounding as invoice item
): self

// Set deposits/advances already paid
->setDeposits(float $amount): self

// Set whether amounts include VAT
->setAmountsWithVat(bool $value): self

// Set VAT rates with labels
->setVatRates(array $rates): self
// Example: ['0' => 'Zero rate', '21' => 'Standard rate']

// Get VAT rate label
->getVatRateLabel(float $rate): ?string

// Enable/disable VAT summary display
->setVatSummary(bool $value): self

// Show VAT summary even when empty
->setSummaryEmpty(bool $value): self

// Enable reverse charge VAT
->setReverseCharge(bool $enabled, string $text = ''): self

// Set which columns to display
->setDisplayedColumns(
    bool $unit,        // Display unit column
    bool $quantity,    // Display quantity column
    bool $unitPrice    // Display unit price column
): self

// Set unit column visibility
->setDisplayUnitColumn(bool $value): self

// Display item count in footer
->setDisplayItemCount(bool $value): self

// Set note position
->setNotePosition(string $position): self
// Values: 'top', 'bottom'

// Set spacing between items
->setItemSpacing(float $spacing): self

// Set item underline color
->setUnderline(array|bool $value): self
// Example: [255, 0, 0] for red or false to disable

// Set style colors
->setStyle(string $style, mixed $value): self
// Styles: 'fillColor', 'fontColor', 'itemFillColor',
//         'itemFontColor', 'pricesFillColor', 'pricesFontColor',
//         'signatureFillColor', 'finalRecipientFillColor'
// Value: [R, G, B] array or hex string '#RRGGBB'

// Set font
->setFont(string $fontName): self
// Default: 'dejavusans', also available: 'helvetica', 'times', etc.

// Enable borders around sections
->setBorders(
    bool $draw,
    float $width = 0.1,
    string $color = '000000',
    int $dash = 0          // 0=solid, >0=dashed
): self

// Add image to invoice
->setImage(
    string $path,           // Path to image file
    float $horizontal,      // X position in mm
    float|string $vertical, // Y position in mm or 'c-XX' for relative
    string $repeat = 'F',   // F=first, L=last, A=all pages
    ?float $width = null,   // Width in mm (auto if null)
    ?float $height = null   // Height in mm (auto if null)
): self

// Add text next to signature
->setSignatureText(
    string $text,
    float $fontSize = 8,
    string $style = ''      // B=bold, I=italic, U=underline
): self

// Add footer text
->setFooterText(
    string $text,
    float $fontSize = 8,
    string $style = ''
): self

// Configure QR payment code
->setQRPayment(
    bool $display,          // Show QR code
    float $x = 50,         // X position in mm
    float $y = 50,         // Y position in mm
    string $page = 'F',    // F=first, L=last, PU=payment section, PA=footer
    float $size = 20,      // QR code size in mm
    int $style = 1         // 1=framed+desc below, 2=no frame+desc right, 3=no frame+desc below
): self

// Add barcode to invoice
->setBarcode(
    int $code,             // Barcode value
    float $x = 10,        // X position in mm
    float $y = 1,         // Y position in mm
    float $width = 30,    // Width in mm
    float $height = 10    // Height in mm
): self

// Set signature certificate
->setSignatureCertificate(string $certificate): self
// Can be file path or certificate content

// Set certificate password
->setSignaturePassword(string $password): self

// Set signature metadata
->setSignatureInfo(
    string $name = '',
    string $location = '',
    string $reason = '',
    string $contact = ''
): self

// Display final recipient section
->setFinalRecipientDisplay(bool $value): self

// Use different address for final recipient
->setFinalRecipientDifferentAddress(bool $value): self

// Set additional info (for credit notes/storno)
->setAdditionalInfo(
    string $originalDocument,
    string $reason = ''
): self

// Set EET (Electronic Registration of Sales) data
->setEET(array $data): self

// Show "Already paid" in payment info
->setAlreadyPaidInPaymentInfo(bool $value): self

// Hide footer texts (generated_footer and footer_middle_text)
->setHideFooterTexts(bool $value): self
// Default: false

// Get count of displayed columns
->getDisplayedColumnsCount(): int

// Get total width of displayed columns
->getDisplayedColumnsWidth(bool $vatPayer = true): int

// Clear settings for new invoice
->clear(): self

// Set company name
->setCompany(string $company): self

// Set contact person name
->setName(string $name): self

// Set street address
->setStreet(string $street): self

// Set city
->setCity(string $city): self

// Set postal code
->setPostalCode(string $postalCode): self

// Set country
->setCountry(string $country): self

// Set company ID (IČO)
->setCompanyId(string $companyId): self

// Set tax ID (DIČ)
->setTaxId(string $taxId): self

// Set phone number
->setPhone(string $phone): self

// Set email
->setEmail(string $email): self

// Set website
->setWeb(string $web): self

// Translate labels to current language
->translate(): self

// Set order number
->setOrder(string $order): self

// Set date from
->setFromDate(string $date): self

// Set issue date
->setIssueDate(string $date): self

// Set due date
->setDueDate(string $date): self

// Set taxable supply date (date of performance)
->setTaxableSupplyDate(string $date): self

// Add custom parameter
->addParameter(string $label, string $value): self

// Translate labels to current language
->translate(): self

// Set payment method
->setPaymentMethod(string $method): self

// Set account number
->setAccountNumber(string $accountNumber): self

// Set bank code
->setBankCode(string $bankCode): self

// Set variable symbol
->setVariableSymbol(string $variableSymbol): self

// Set constant symbol
->setConstantSymbol(string $constantSymbol): self

// Set specific symbol
->setSpecificSymbol(string $specificSymbol): self

// Add custom parameter
->addParameter(string $label, string $value): self

// Translate labels to current language
->translate(): self

use Kenod\InvoiceGenerator\Iban;

// Generate IBAN from Czech account number
Iban::getIban(
    string|int $account,
    string|int $bankCode,
    string|int $accountPrefix = '',
    bool $onlyValidBic = false
): string|false

// Get BIC/SWIFT code for Czech bank
Iban::getSwift(string|int $bankCode): string

// Generate QR payment string
Iban::getQRString(array $data): string|null
// Data: ['iban' => '', 'bic' => '', 'amount' => '', 'vs' => '', 'ks' => '', 'ss' => '']

use Kenod\InvoiceGenerator\Translator;

// Load translation file, use it after calling ->setLanguage(), otherwise it won't have effect.
Translator::loadTranslations(string $filePath): void

// Translate key
Translator::t(string $key): string

// Check if language is loaded
Translator::hasLanguage(): bool

// Modify translations (overwrites existing keys, adds new ones)
Translator::modifyTranslations(array $translations): void

// Proforma invoice
$invoice->settings->setDocumentType('proforma');

// Credit note
$invoice->settings->setDocumentType('odd');

// Storno/Cancellation
$invoice->settings->setDocumentType('storno');
$invoice->settings->setAdditionalInfo('2024001', 'Cancelled order');

$invoice = new InvoiceGenerator();

// Supplier
$invoice->supplier
    ->setCompany('Tech Solutions s.r.o.')
    ->setStreet('Innovation Street 123')
    ->setCity('Prague')
    ->setPostalCode('110 00')
    ->setCountry('Czech Republic')
    ->setCompanyId('12345678')
    ->setTaxId('CZ12345678')
    ->setPhone('+420 123 456 789')
    ->setEmail('[email protected]')
    ->setWeb('www.techsolutions.cz');

// Customer
$invoice->customer
    ->setCompany('Customer Corp.')
    ->setName('John Doe')
    ->setStreet('Business Avenue 456')
    ->setCity('Brno')
    ->setPostalCode('602 00')
    ->setCompanyId('87654321')
    ->setTaxId('CZ87654321');

// Invoice information
$invoice->information
    ->setOrder('PO-2024-001')
    ->setFromDate('2024-01-01')
    ->setIssueDate('2024-03-15')
    ->setDueDate('2024-03-30')
    ->setTaxableSupplyDate('2024-03-15')
    ->addParameter('Project', 'Website Development');

// Payment details
$invoice->paymentDetails
    ->setPaymentMethod('Bank transfer')
    ->setAccountNumber('123456789')
    ->setBankCode('0100')
    ->setVariableSymbol('2024001')
    ->setConstantSymbol('0308')
    ->setSpecificSymbol('12345');

// Settings
$invoice->settings
    ->setInvoiceNumber('2024001')
    ->setDocumentType('faktura')
    ->setVatPayer(true)
    ->setCurrency('CZK')
    ->setLanguage('cs')
    ->setAuthor('John Doe')
    ->setTitle('Invoice 2024001')
    ->setFont('dejavusans')
    ->setDiscount(10, 1, 1, 0, 21)
    ->setRounding(1, 1, 1, 1, true)
    ->setDeposits(5000)
    ->setVatRates(['0' => 'Nulová sazba', '12' => 'Snížená sazba', '21' => 'Základní sazba'])
    ->setDisplayedColumns(true, true, true)
    ->setDisplayItemCount(true)
    ->setVatSummary(true)
    ->setStyle('fillColor', [200, 220, 240])
    ->setStyle('fontColor', [0, 0, 100])
    ->setQRPayment(true, 150, 250, 'F', 30, 1)
    ->setImage('logo.png', 15, 10, 'A', 40, 20)
    ->setSignatureText('Authorized by: John Doe', 8, 'B')
    ->setFooterText('Thank you for your business!', 8, 'I')
    ->setBorders(true, 0.2, '000000', 0);

// Add items with different VAT rates
$invoice->addItem('Web Development', 40, 1500, 'hours', 21);
$invoice->addItem('Consulting', 10, 2000, 'hours', 21);
$invoice->addItem('Books', 5, 200, 'pcs', 12);
$invoice->addItem('Training Materials', 1, 500, 'set', 0);

// Generate
$invoice->generate();

$invoice->settings
    ->setVatPayer(true)
    ->setReverseCharge(true, 'Reverse charge - Article 196 of Directive 2006/112/EC');

$invoice->addItem('International Services', 100, 1500, 'hours', 21);
// VAT will be 0, but rate is preserved for documentation

// Get final prices with VAT breakdown
$prices = $invoice->getFinalPrices();

echo "Total: " . $prices['total'] . " CZK\n";

if (isset($prices['vat_summary'])) {
    foreach ($prices['vat_summary'] as $rate => $amounts) {
        echo "VAT {$rate}%: Base=" . $amounts['base']
           . ", VAT=" . $amounts['vat']
           . ", Total=" . $amounts['total'] . "\n";
    }
}

// Create langs/de.php
return [
    'invoice' => 'Rechnung',
    'supplier' => 'Lieferant',
    'customer' => 'Kunde',
    'total_to_pay' => 'Gesamtsumme',
    // ... more translations
];

// Use in code
$invoice->settings->setLanguage('de');

$pdf = new \WFPfaktury\WFPfaktury();
$pdf->dodavatel->SetFirma('Company');
$pdf->nastaveni->SetCisloFaktury('001');
$pdf->pridejPolozku('Item', 1, 100);
$pdf->generuj();

use Kenod\InvoiceGenerator\InvoiceGenerator;

$invoice = new InvoiceGenerator();
$invoice->supplier->setCompany('Company');
$invoice->settings->setInvoiceNumber('001');
$invoice->addItem('Item', 1, 100);
$invoice->generate();