<?php
require_once 'config.php';
requireLogin();

$page_title = 'Add New Affiliate';
$page_description = 'Create a new affiliate partner';

$success = '';
$error = '';

$indian_states = [
    'Andhra Pradesh', 'Arunachal Pradesh', 'Assam', 'Bihar', 'Chhattisgarh', 'Goa', 'Gujarat',
    'Haryana', 'Himachal Pradesh', 'Jharkhand', 'Karnataka', 'Kerala', 'Madhya Pradesh',
    'Maharashtra', 'Manipur', 'Meghalaya', 'Mizoram', 'Nagaland', 'Odisha', 'Punjab',
    'Rajasthan', 'Sikkim', 'Tamil Nadu', 'Telangana', 'Tripura', 'Uttar Pradesh',
    'Uttarakhand', 'West Bengal', 'Delhi', 'Chandigarh', 'Puducherry'
];

// Handle form submission
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['action']) && $_POST['action'] === 'create_affiliate') {
    $type = $_POST['type'] ?? '';
    $company_name = trim($_POST['company_name'] ?? '');
    $incharge_name = trim($_POST['incharge_name'] ?? '');
    $state = $_POST['state'] ?? '';
    $postal_code = trim($_POST['postal_code'] ?? '');
    $place_name = trim($_POST['place_name'] ?? '');
    $mobile = trim($_POST['mobile'] ?? '');
    $email = trim($_POST['email'] ?? '');
    $url = trim($_POST['url'] ?? '');
    $signup_reward = floatval($_POST['signup_reward'] ?? 50.00);
    
    // Validation
    if (empty($type) || empty($company_name) || empty($incharge_name) || empty($state) || 
        empty($postal_code) || empty($place_name) || empty($mobile) || empty($email)) {
        $error = 'All required fields must be filled';
    } elseif (!preg_match('/^\d{6}$/', $postal_code)) {
        $error = 'Postal code must be exactly 6 digits';
    } elseif (!preg_match('/^\d{10}$/', $mobile)) {
        $error = 'Mobile number must be exactly 10 digits';
    } elseif (!filter_var($email, FILTER_VALIDATE_EMAIL)) {
        $error = 'Invalid email address';
    } else {
        try {
            $pdo = getDBConnection();
            
            // Generate unique affiliate code
            do {
                $affiliate_code = strtoupper(substr(md5(uniqid(rand(), true)), 0, 8));
                $checkStmt = $pdo->prepare("SELECT id FROM affiliates WHERE affiliate_code = ?");
                $checkStmt->execute([$affiliate_code]);
            } while ($checkStmt->fetch());
            
            // Insert affiliate
            $stmt = $pdo->prepare("
                INSERT INTO affiliates 
                (affiliate_code, type, company_name, incharge_name, state, postal_code, 
                 place_name, mobile, email, url, signup_reward, created_by, status, created_at)
                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'active', NOW())
            ");
            
            $stmt->execute([
                $affiliate_code, $type, $company_name, $incharge_name, $state, $postal_code,
                $place_name, $mobile, $email, $url, $signup_reward, $_SESSION['admin_id']
            ]);
            
            $affiliate_id = $pdo->lastInsertId();
            
            // Handle file uploads
            if (!empty($_FILES['attachments']['name'][0])) {
                $upload_dir = 'uploads/affiliates/';
                if (!file_exists($upload_dir)) {
                    mkdir($upload_dir, 0755, true);
                }
                
                $allowed_types = ['application/pdf', 'image/jpeg', 'image/jpg', 'image/png', 'image/gif'];
                $max_files = 10;
                $max_size = 5 * 1024 * 1024; // 5MB
                
                for ($i = 0; $i < min(count($_FILES['attachments']['name']), $max_files); $i++) {
                    if ($_FILES['attachments']['error'][$i] === UPLOAD_ERR_OK) {
                        $file_type = $_FILES['attachments']['type'][$i];
                        $file_size = $_FILES['attachments']['size'][$i];
                        
                        if (in_array($file_type, $allowed_types) && $file_size <= $max_size) {
                            $file_name = $_FILES['attachments']['name'][$i];
                            $file_tmp = $_FILES['attachments']['tmp_name'][$i];
                            
                            // Generate unique filename
                            $extension = pathinfo($file_name, PATHINFO_EXTENSION);
                            $unique_name = $affiliate_code . '_' . time() . '_' . $i . '.' . $extension;
                            $file_path = $upload_dir . $unique_name;
                            
                            if (move_uploaded_file($file_tmp, $file_path)) {
                                $attachStmt = $pdo->prepare("
                                    INSERT INTO affiliate_attachments 
                                    (affiliate_id, file_name, file_path, file_type, file_size, uploaded_at)
                                    VALUES (?, ?, ?, ?, ?, NOW())
                                ");
                                $attachStmt->execute([
                                    $affiliate_id, $file_name, $file_path, $file_type, $file_size
                                ]);
                            }
                        }
                    }
                }
            }
            
            logActivity($_SESSION['admin_id'], 'create_affiliate', "Created affiliate: $affiliate_code", 'affiliate', $affiliate_id);
            
            header('Location: supply.php?success=created&code=' . $affiliate_code);
            exit;
        } catch (Exception $e) {
            $error = 'An error occurred. Please try again.';
            error_log("Create affiliate error: " . $e->getMessage());
        }
    }
}

include 'includes/header.php';
?>

<style>
.create-container {
    padding: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.create-form {
    background: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: #374151;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0,102,204,0.1);
}

/* File Upload Area */
.file-upload-area {
    border: 2px dashed #d1d5db;
    border-radius: 12px;
    padding: 32px;
    text-align: center;
    background: #f9fafb;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload-area:hover {
    border-color: #0066cc;
    background: #eff6ff;
}

.file-upload-area.dragover {
    border-color: #0066cc;
    background: #dbeafe;
}

.file-list {
    margin-top: 16px;
}

.file-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: #f9fafb;
    border-radius: 8px;
    margin-bottom: 8px;
    border: 1px solid #e5e7eb;
}

.file-item span {
    font-size: 14px;
    color: #374151;
    font-weight: 500;
}

.file-remove {
    padding: 6px 12px;
    background: #fee2e2;
    color: #991b1b;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.file-remove:hover {
    background: #dc2626;
    color: white;
}

.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 2px solid #e5e7eb;
}

.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    z-index: 10000;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateX(400px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.notification-error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid #dc2626;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}
</style>

<div class="create-container">
    <?php if ($error): ?>
    <div class="notification notification-error">
        ⚠️ <?php echo htmlspecialchars($error); ?>
    </div>
    <?php endif; ?>

    <div class="page-header">
        <div>
            <h1>✨ Add New Affiliate Partner</h1>
            <p class="page-subtitle">Create a new affiliate account with document uploads</p>
        </div>
        <div class="header-actions">
            <a href="supply.php" class="btn btn-secondary">
                ← Back to List
            </a>
        </div>
    </div>

    <div class="create-form">
        <form method="POST" enctype="multipart/form-data" id="affiliateForm">
            <input type="hidden" name="action" value="create_affiliate">
            
            <div class="form-row">
                <div class="form-group">
                    <label for="type">Type of Affiliate <span style="color: #dc2626;">*</span></label>
                    <select id="type" name="type" required>
                        <option value="">Select Type</option>
                        <option value="individual">Individual</option>
                        <option value="company">Company</option>
                    </select>
                </div>
                
                <div class="form-group">
                    <label for="company_name">Name of Affiliate (as per documents) <span style="color: #dc2626;">*</span></label>
                    <input type="text" id="company_name" name="company_name" required placeholder="Company/Individual Name">
                </div>
            </div>
            
            <div class="form-row">
                <div class="form-group">
                    <label for="incharge_name">Name of In-charge (as per PAN) <span style="color: #dc2626;">*</span></label>
                    <input type="text" id="incharge_name" name="incharge_name" required placeholder="Director/Partner/Proprietor Name">
                </div>
                
                <div class="form-group">
                    <label for="mobile">Mobile Number <span style="color: #dc2626;">*</span></label>
                    <input type="tel" id="mobile" name="mobile" pattern="[0-9]{10}" maxlength="10" required placeholder="10-digit mobile number">
                </div>
            </div>
            
            <div class="form-row">
                <div class="form-group">
                    <label for="email">Email Address <span style="color: #dc2626;">*</span></label>
                    <input type="email" id="email" name="email" required placeholder="email@example.com">
                </div>
                
                <div class="form-group">
                    <label for="url">Website URL</label>
                    <input type="url" id="url" name="url" placeholder="https://example.com">
                </div>
            </div>
            
            <div class="form-row">
                <div class="form-group">
                    <label for="place_name">City/Place <span style="color: #dc2626;">*</span></label>
                    <input type="text" id="place_name" name="place_name" required placeholder="City name">
                </div>
                
                <div class="form-group">
                    <label for="state">State <span style="color: #dc2626;">*</span></label>
                    <select id="state" name="state" required>
                        <option value="">Select State</option>
                        <?php foreach ($indian_states as $state): ?>
                            <option value="<?php echo $state; ?>"><?php echo $state; ?></option>
                        <?php endforeach; ?>
                    </select>
                </div>
            </div>
            
            <div class="form-row">
                <div class="form-group">
                    <label for="postal_code">Postal Code <span style="color: #dc2626;">*</span></label>
                    <input type="text" id="postal_code" name="postal_code" pattern="[0-9]{6}" maxlength="6" required placeholder="6-digit PIN code">
                </div>
                
                <div class="form-group">
                    <label for="signup_reward">Signup Reward (₹)</label>
                    <input type="number" id="signup_reward" name="signup_reward" step="0.01" value="50.00" placeholder="50.00">
                </div>
            </div>
            
            <div style="margin: 24px 0;">
                <label style="font-weight: 600; color: #374151; margin-bottom: 12px; display: block;">
                    📎 Upload Documents (Max 10 files - PDF or Images)
                </label>
                <div class="file-upload-area" id="fileUploadArea">
                    <p style="margin: 0 0 8px 0; color: #374151; font-weight: 500; font-size: 16px;">
                        📁 Click to upload or drag and drop files here
                    </p>
                    <small style="color: #6b7280;">PDF, JPG, PNG, GIF (Max 10 files, 5MB each)</small>
                    <small style="display: block; margin-top: 8px; color: #9ca3af; font-size: 12px;">
                        Upload GST Certificate, PAN Card, Cancelled Cheque, Business Registration, etc.
                    </small>
                    <input type="file" id="attachments" name="attachments[]" 
                           multiple accept=".pdf,.jpg,.jpeg,.png,.gif" 
                           style="display: none;">
                </div>
                <div class="file-list" id="fileList"></div>
            </div>
            
            <div class="form-actions">
                <a href="supply.php" class="btn btn-secondary">Cancel</a>
                <button type="submit" class="btn btn-primary">
                    ✨ Create Affiliate
                </button>
            </div>
        </form>
    </div>
</div>

<script>
// Auto-hide notification
setTimeout(() => {
    const notification = document.querySelector('.notification');
    if (notification) {
        notification.style.animation = 'slideIn 0.3s ease reverse';
        setTimeout(() => notification.remove(), 300);
    }
}, 5000);

// File upload handling
const fileUploadArea = document.getElementById('fileUploadArea');
const fileInput = document.getElementById('attachments');
const fileList = document.getElementById('fileList');
let selectedFiles = [];

fileUploadArea.addEventListener('click', () => fileInput.click());

fileUploadArea.addEventListener('dragover', (e) => {
    e.preventDefault();
    fileUploadArea.classList.add('dragover');
});

fileUploadArea.addEventListener('dragleave', () => {
    fileUploadArea.classList.remove('dragover');
});

fileUploadArea.addEventListener('drop', (e) => {
    e.preventDefault();
    fileUploadArea.classList.remove('dragover');
    handleFiles(e.dataTransfer.files);
});

fileInput.addEventListener('change', (e) => {
    handleFiles(e.target.files);
});

function handleFiles(files) {
    const maxFiles = 10;
    const maxSize = 5 * 1024 * 1024; // 5MB
    const allowedTypes = ['application/pdf', 'image/jpeg', 'image/jpg', 'image/png', 'image/gif'];
    
    for (let file of files) {
        if (selectedFiles.length >= maxFiles) {
            alert(`Maximum ${maxFiles} files allowed`);
            break;
        }
        
        if (!allowedTypes.includes(file.type)) {
            alert(`File type not allowed: ${file.name}\nAllowed: PDF, JPG, PNG, GIF`);
            continue;
        }
        
        if (file.size > maxSize) {
            alert(`File too large: ${file.name}\nMax size: 5MB`);
            continue;
        }
        
        selectedFiles.push(file);
    }
    
    updateFileList();
}

function updateFileList() {
    fileList.innerHTML = '';
    
    selectedFiles.forEach((file, index) => {
        const fileItem = document.createElement('div');
        fileItem.className = 'file-item';
        fileItem.innerHTML = `
            <span>📄 ${file.name} (${(file.size / 1024).toFixed(2)} KB)</span>
            <button type="button" class="file-remove" onclick="removeFile(${index})">Remove</button>
        `;
        fileList.appendChild(fileItem);
    });
    
    // Update the file input
    const dataTransfer = new DataTransfer();
    selectedFiles.forEach(file => dataTransfer.items.add(file));
    fileInput.files = dataTransfer.files;
}

function removeFile(index) {
    selectedFiles.splice(index, 1);
    updateFileList();
}
</script>

<?php include 'includes/footer.php'; ?>