<?php
/**
 * Letterhead PDF Download — Clean Professional Design via TCPDF
 * Print-friendly: all text dark enough for reliable printing.
 */
require_once 'config.php';

if (!isLoggedIn()) {
    header('Location: index.php');
    exit;
}

$tcpdfPath = __DIR__ . '/tcpdf/tcpdf.php';
if (!file_exists($tcpdfPath)) {
    die('<h2>TCPDF not found</h2><p>Please ensure TCPDF is installed in the /tcpdf directory.</p>');
}
require_once $tcpdfPath;

$pdo = getDBConnection();

$settings = [];
try {
    $result = $pdo->query("SELECT setting_key, setting_value FROM company_settings");
    while ($row = $result->fetch()) {
        $settings[$row['setting_key']] = $row['setting_value'];
    }
} catch (Exception $e) {
    die('Error loading settings.');
}

$s = function($key, $default = '') use ($settings) {
    return $settings[$key] ?? $default;
};

$addrParts = array_filter([
    $s('company_address'),
    $s('company_city'),
    $s('company_state'),
    $s('company_country'),
    $s('company_pincode')
]);
$fullAddr = implode(', ', $addrParts);

// ─── Colors — all dark enough for reliable printing ───
$GREEN  = [5, 150, 105];
$DARK   = [15, 23, 42];      // near-black for primary text
$BODY   = [30, 41, 59];      // #1e293b — body text
$SUB    = [51, 65, 85];      // #334155 — secondary text (prints well)
$MUTED  = [71, 85, 105];     // #475569 — muted but still printable
$RULE   = [203, 213, 225];   // #cbd5e1 — lines
$WHITE  = [255, 255, 255];

class LetterheadPDF extends TCPDF {
    public function Header() {}
    public function Footer() {}
}

$pdf = new LetterheadPDF('P', 'mm', 'A4', true, 'UTF-8', false);
$pdf->SetCreator('Relevant Reflex');
$pdf->SetAuthor($s('company_name', 'Relevant Reflex Consulting'));
$pdf->SetTitle('Letterhead - ' . $s('company_name', 'Company'));
$pdf->SetMargins(0, 0, 0);
$pdf->SetAutoPageBreak(false, 0);
$pdf->setPrintHeader(false);
$pdf->setPrintFooter(false);
$pdf->AddPage();

$PW = 210;
$PH = 297;
$LM = 20;
$RM = 20;
$CW = $PW - $LM - $RM;

// Left column width (company name area) — stops at 55% to avoid overlap
$LEFT_W = $CW * 0.52;
// Right column starts at 58% — gives a gap
$RIGHT_X = $LM + ($CW * 0.58);
$RIGHT_W = $PW - $RM - $RIGHT_X;

// ══════════════════════════════════════════════════
// TOP ACCENT — thin green strip
// ══════════════════════════════════════════════════
$pdf->SetFillColor(...$GREEN);
$pdf->Rect(0, 0, $PW, 1.2, 'F');

// ══════════════════════════════════════════════════
// LOGO — rounded green square with "RR"
// ══════════════════════════════════════════════════
$logoX = $LM;
$logoY = 14;
$logoS = 15;

$pdf->SetFillColor(...$GREEN);
$pdf->RoundedRect($logoX, $logoY, $logoS, $logoS, 3.2, '1111', 'F');

$pdf->SetFont('helvetica', 'B', 16);
$pdf->SetTextColor(...$WHITE);
$pdf->SetXY($logoX, $logoY + 3.2);
$pdf->Cell($logoS, $logoS - 6.4, 'RR', 0, 0, 'C');

// ══════════════════════════════════════════════════
// COMPANY NAME (left side, constrained width)
// ══════════════════════════════════════════════════
$nameX = $logoX + $logoS + 5;
$nameMaxW = $LEFT_W - $logoS - 5; // available width for name

$pdf->SetFont('helvetica', 'B', 22);
$pdf->SetTextColor(...$GREEN);
$pdf->SetXY($nameX, $logoY + 1);
$pdf->Cell($nameMaxW, 10, $s('company_name', 'Your Company Name'), 0, 1, 'L');

// ══════════════════════════════════════════════════
// TAGLINE (left side, constrained)
// ══════════════════════════════════════════════════
$pdf->SetFont('helvetica', '', 6.5);
$pdf->SetTextColor(...$MUTED);
$pdf->SetXY($nameX, $logoY + 12);
$pdf->Cell($nameMaxW, 4, 'PANEL MANAGEMENT & RESEARCH SOLUTIONS', 0, 1, 'L');

// ══════════════════════════════════════════════════
// CONTACT INFO — right column, no overlap
// ══════════════════════════════════════════════════
$contactItems = [];
if ($s('company_phone'))   $contactItems[] = $s('company_phone');
if ($s('company_email'))   $contactItems[] = $s('company_email');
if ($s('company_website')) $contactItems[] = str_replace(['https://','http://'], '', $s('company_website'));

$contactStartY = $logoY + 1;
$contactLineH = 6.5;

foreach ($contactItems as $i => $text) {
    $y = $contactStartY + ($i * $contactLineH);

    // Contact text — right-aligned within right column
    $pdf->SetFont('helvetica', '', 9);
    $pdf->SetTextColor(...$BODY);
    $pdf->SetXY($RIGHT_X, $y);
    $pdf->Cell($RIGHT_W, $contactLineH, $text, 0, 0, 'R');
}

// ══════════════════════════════════════════════════
// ADDRESS
// ══════════════════════════════════════════════════
$addrY = $logoY + $logoS + 7;
$pdf->SetFont('helvetica', '', 9);
$pdf->SetTextColor(...$SUB);
$pdf->SetXY($LM, $addrY);
$pdf->MultiCell($CW * 0.65, 4.5, $fullAddr, 0, 'L');

// ══════════════════════════════════════════════════
// HEADER DIVIDER — solid green line
// ══════════════════════════════════════════════════
$divY = $addrY + 14;
$pdf->SetDrawColor(...$GREEN);
$pdf->SetLineWidth(0.5);
$pdf->Line($LM, $divY, $PW - $RM, $divY);

// ══════════════════════════════════════════════════
// FOOTER
// ══════════════════════════════════════════════════
$footerY = $PH - 18;

// Separator
$pdf->SetDrawColor(...$RULE);
$pdf->SetLineWidth(0.2);
$pdf->Line($LM, $footerY, $PW - $RM, $footerY);

// Footer left
$pdf->SetFont('helvetica', '', 8);
$pdf->SetTextColor(...$MUTED);

$footerLeft = $s('company_name', 'Company');
if ($s('company_city') || $s('company_state')) {
    $footerLeft .= '  ·  ' . $s('company_city', '');
    if ($s('company_state')) $footerLeft .= ', ' . $s('company_state');
}
$pdf->SetXY($LM, $footerY + 4);
$pdf->Cell($CW * 0.65, 5, $footerLeft, 0, 0, 'L');

// Footer right
if ($s('company_website')) {
    $pdf->SetXY($LM + ($CW * 0.65), $footerY + 4);
    $pdf->Cell($CW * 0.35, 5, str_replace(['https://','http://'], '', $s('company_website')), 0, 0, 'R');
}

// ══════════════════════════════════════════════════
// BOTTOM ACCENT — thin green strip
// ══════════════════════════════════════════════════
$pdf->SetFillColor(...$GREEN);
$pdf->Rect(0, $PH - 1.2, $PW, 1.2, 'F');

// ══════════════════════════════════════════════════
// OUTPUT
// ══════════════════════════════════════════════════
$filename = 'Letterhead - ' . $s('company_name', 'Company') . '.pdf';
$pdf->Output($filename, 'D');