<?php
session_start();
require_once __DIR__ . '/../db/config.php';
require_once __DIR__ . '/../fpdf/fpdf.php';

if (!isset($_SESSION["user_id"])) {
    die('Authentication required.');
}

$user_id = $_SESSION["user_id"];
$lpa_id = isset($_GET['id']) ? (int)$_GET['id'] : null;

if (!$lpa_id) {
    die('LPA ID is required.');
}

// Fetch LPA data
$stmt = db()->prepare("SELECT * FROM lpa_applications WHERE id = ?");
$stmt->execute([$lpa_id]);
$lpa_data = $stmt->fetch();

if (!$lpa_data) {
    die('LPA not found.');
}

// Authorization check
if ($lpa_data['user_id'] != $user_id && ($_SESSION['user_role'] ?? '') !== 'Super User') {
    die('Unauthorized access.');
}

// Fetch attorneys
$stmt = db()->prepare("SELECT * FROM lpa_attorneys WHERE lpa_id = ? AND type = 'primary' ORDER BY id ASC");
$stmt->execute([$lpa_id]);
$primary_attorneys = $stmt->fetchAll();

$stmt = db()->prepare("SELECT * FROM lpa_attorneys WHERE lpa_id = ? AND type = 'replacement' ORDER BY id ASC");
$stmt->execute([$lpa_id]);
$replacement_attorneys = $stmt->fetchAll();

// Fetch notified persons
$stmt = db()->prepare("SELECT * FROM lpa_notified_persons WHERE application_id = ? ORDER BY id ASC");
$stmt->execute([$lpa_id]);
$notified_persons = $stmt->fetchAll();

class LPAPDF extends FPDF {
    function Header() {
        $this->SetFont('Helvetica', 'B', 15);
        $this->Cell(0, 10, 'Health and Welfare Lasting Power of Attorney', 0, 1, 'C');
        $this->SetFont('Helvetica', 'I', 9);
        $this->Cell(0, 5, 'Summary Draft (Not a registered legal document)', 0, 1, 'C');
        $this->Ln(10);
    }

    function Footer() {
        $this->SetY(-15);
        $this->SetFont('Helvetica', 'I', 8);
        $this->Cell(0, 10, 'Page ' . $this->PageNo() . '/{nb} - Generated on ' . date('Y-m-d H:i'), 0, 0, 'C');
    }

    function SectionTitle($title) {
        $this->SetFont('Helvetica', 'B', 12);
        $this->SetFillColor(230, 230, 230);
        $this->Cell(0, 8, $title, 0, 1, 'L', true);
        $this->Ln(2);
    }

    function Field($label, $value) {
        $this->SetFont('Helvetica', 'B', 10);
        $this->Cell(50, 6, $label . ':', 0, 0);
        $this->SetFont('Helvetica', '', 10);
        $this->MultiCell(0, 6, $value ? $value : 'None', 0, 'L');
    }
}

$pdf = new LPAPDF();
$pdf->AliasNbPages();
$pdf->AddPage();
$pdf->SetAutoPageBreak(true, 15);

// 1. Donor
$pdf->SectionTitle('1. The Donor');
$pdf->Field('Full Name', $lpa_data['donor_name']);
if (!empty($lpa_data['other_names'])) $pdf->Field('Other Names', $lpa_data['other_names']);
$pdf->Field('Date of Birth', $lpa_data['donor_dob']);
$pdf->Field('Email', $lpa_data['customer_email']);
$donor_addr = $lpa_data['donor_address_line1'];
if (!empty($lpa_data['donor_address_line2'])) $donor_addr .= ', ' . $lpa_data['donor_address_line2'];
$donor_addr .= ', ' . $lpa_data['donor_town'] . ', ' . $lpa_data['donor_postcode'];
$pdf->Field('Address', $donor_addr);
$pdf->Ln(5);

// 2. Primary Attorneys
$pdf->SectionTitle('2. The Attorneys');
if (empty($primary_attorneys)) {
    $pdf->Field('Attorneys', 'No attorneys listed.');
} else {
    foreach ($primary_attorneys as $idx => $att) {
        $pdf->SetFont('Helvetica', 'B', 10);
        $pdf->Cell(0, 6, 'Attorney ' . ($idx + 1) . ':', 0, 1);
        $pdf->SetFont('Helvetica', '', 10);
        $name = ($att['title'] ? $att['title'] . ' ' : '') . $att['first_name'] . ' ' . $att['last_name'];
        $pdf->Field('Name', $name);
        $pdf->Field('DOB', $att['dob']);
        $pdf->Field('Email', $att['email']);
        $addr = $att['address_line1'];
        if (!empty($att['address_line2'])) $addr .= ', ' . $att['address_line2'];
        $addr .= ', ' . $att['town'] . ', ' . $att['postcode'];
        $pdf->Field('Address', $addr);
        
        // Witness
        if (!empty($att['witness_first_name'])) {
            $w_name = $att['witness_first_name'] . ' ' . $att['witness_last_name'];
            $w_addr = $att['witness_address_line1'] . ', ' . $att['witness_postcode'];
            $pdf->Field('Witness', $w_name . ' (' . $w_addr . ')');
        }
        $pdf->Ln(2);
    }
}
$pdf->Ln(5);

// 3. Decisions
$pdf->SectionTitle('3. How should the attorneys make decisions?');
$pdf->Field('Decision Type', $lpa_data['attorney_decision_type']);
$pdf->Ln(5);

// 4. Replacement Attorneys
$pdf->SectionTitle('4. Replacement Attorneys');
if (empty($replacement_attorneys)) {
    $pdf->Field('Replacements', 'No replacement attorneys listed.');
} else {
    foreach ($replacement_attorneys as $idx => $att) {
        $pdf->SetFont('Helvetica', 'B', 10);
        $pdf->Cell(0, 6, 'Replacement ' . ($idx + 1) . ':', 0, 1);
        $pdf->SetFont('Helvetica', '', 10);
        $name = ($att['title'] ? $att['title'] . ' ' : '') . $att['first_name'] . ' ' . $att['last_name'];
        $pdf->Field('Name', $name);
        $addr = $att['address_line1'] . ', ' . $att['town'] . ', ' . $att['postcode'];
        $pdf->Field('Address', $addr);
        $pdf->Ln(2);
    }
}
$pdf->Ln(5);

// 5. Life Sustaining
$pdf->SectionTitle('5. Life-Sustaining Treatment');
$pdf->Field('Option', $lpa_data['life_sustaining_treatment']);
$pdf->Ln(5);

// 6. Witness Information
$pdf->SectionTitle('6. Donor\'s Witness');
$pdf->Field('Name', $lpa_data['witness_first_name'] . ' ' . $lpa_data['witness_last_name']);
$pdf->Field('Address', $lpa_data['witness_address_line1'] . ', ' . $lpa_data['witness_postcode']);
$pdf->Ln(5);

// 7. People to Notify
$pdf->SectionTitle('7. People to Notify');
if (empty($notified_persons)) {
    $pdf->Field('Persons', 'None');
} else {
    foreach ($notified_persons as $idx => $np) {
        $pdf->Field('Person ' . ($idx + 1), $np['first_name'] . ' ' . $np['last_name'] . ' (' . $np['postcode'] . ')');
    }
}
$pdf->Ln(5);

// 8. Preferences & Instructions
$pdf->SectionTitle('8. Preferences and Instructions');
$pdf->Field('Preferences', $lpa_data['preferences']);
$pdf->Field('Instructions', $lpa_data['instructions']);
$pdf->Ln(5);

// 9. Certificate Provider
$pdf->SectionTitle('9. Certificate Provider');
$name = ($lpa_data['certificate_provider_title'] ? $lpa_data['certificate_provider_title'] . ' ' : '') . $lpa_data['certificate_provider_first_name'] . ' ' . $lpa_data['certificate_provider_last_name'];
$pdf->Field('Name', $name);
$pdf->Field('Address', $lpa_data['certificate_provider_address_line1'] . ', ' . $lpa_data['certificate_provider_postcode']);
$pdf->Ln(5);

// 10. Attorney Witnesses
$pdf->SectionTitle('10. Attorney Witnesses');
foreach ($primary_attorneys as $idx => $att) {
    if (!empty($att['witness_first_name'])) {
        $w_name = $att['witness_first_name'] . ' ' . $att['witness_last_name'];
        $pdf->Field('Witness for ' . $att['first_name'], $w_name);
    }
}
foreach ($replacement_attorneys as $idx => $att) {
    if (!empty($att['witness_first_name'])) {
        $w_name = $att['witness_first_name'] . ' ' . $att['witness_last_name'];
        $pdf->Field('Witness for ' . $att['first_name'], $w_name);
    }
}
$pdf->Ln(5);

// 11. Registration
$pdf->SectionTitle('11. Registration');
$pdf->Field('Who is registering', ucfirst($lpa_data['registration_who'] ?? ''));
if (($lpa_data['registration_who'] ?? '') === 'attorneys') {
    $reg_ids = explode(',', $lpa_data['registering_attorneys_ids'] ?? '');
    $reg_names = [];
    foreach ($primary_attorneys as $att) {
        if (in_array($att['id'], $reg_ids)) {
            $reg_names[] = $att['first_name'] . ' ' . $att['last_name'];
        }
    }
    $pdf->Field('Attorneys', implode(', ', $reg_names));
}
$pdf->Ln(5);

// 12. Correspondence
$pdf->SectionTitle('12. Correspondence');
$pdf->Field('Recipient', $lpa_data['correspondence_who'] ?? '');
if (($lpa_data['correspondence_who'] ?? '') !== 'Donor') {
    $pdf->Field('Name', ($lpa_data['correspondence_first_name'] ?? '') . ' ' . ($lpa_data['correspondence_last_name'] ?? ''));
    $pdf->Field('Address', ($lpa_data['correspondence_address_line1'] ?? '') . ', ' . ($lpa_data['correspondence_postcode'] ?? ''));
    $pdf->Field('Contact Preference', $lpa_data['correspondence_contact_preference'] ?? '');
}
$pdf->Ln(5);

// 13. Payment
$pdf->SectionTitle('13. Payment & Fee');
$pdf->Field('Payment Method', $lpa_data['payment_method'] ?? '');
$pdf->Field('Reduced Fee Eligibility', $lpa_data['reduced_fee_eligibility'] ?? '');
$pdf->Field('Repeat Application', ($lpa_data['is_repeat_application'] ?? false) ? 'Yes (Case: ' . ($lpa_data['repeat_case_number'] ?? '') . ')' : 'No');

$filename = 'LPA_' . str_replace(' ', '_', ($lpa_data['donor_name'] ?? 'Summary')) . '_' . date('Ymd') . '.pdf';
$pdf->Output('D', $filename);