<?php
include 'header.php';

$alert = "";

// --- 1. UPDATE PERSONAL INFO ---
if (isset($_POST['update_profile'])) {
    $phone_val = clean($_POST['phone']);
    $country_val = clean($_POST['country']);
    $address_val = clean($_POST['address']);
    $dob_val = clean($_POST['dob']);

    $sql = "UPDATE users SET phone='$phone_val', country='$country_val', address='$address_val', dob='$dob_val' WHERE id='$user_id'";
    
    if (mysqli_query($link, $sql)) {
        $alert = "Swal.fire({icon: 'success', title: 'Saved', text: 'Profile details updated successfully.'});";
        // Update local variables
        $phone = $phone_val;
        $country = $country_val;
        $address = $address_val;
        $dob = $dob_val;
    } else {
        $alert = "Swal.fire({icon: 'error', title: 'Error', text: 'Failed to update profile.'});";
    }
}

// --- 2. CHANGE PASSWORD ---
if (isset($_POST['change_password'])) {
    $current_pass = $_POST['current_password'];
    $new_pass = $_POST['new_password'];
    $confirm_pass = $_POST['confirm_password'];

    if ($password === $current_pass) {
        if ($new_pass === $confirm_pass) {
            if (strlen($new_pass) >= 6) {
                $sql = "UPDATE users SET password='$new_pass' WHERE id='$user_id'";
                if(mysqli_query($link, $sql)){
                    $alert = "Swal.fire({icon: 'success', title: 'Success', text: 'Password changed successfully.'});";
                }
            } else {
                $alert = "Swal.fire({icon: 'error', title: 'Weak Password', text: 'Password must be at least 6 characters.'});";
            }
        } else {
            $alert = "Swal.fire({icon: 'error', title: 'Mismatch', text: 'New passwords do not match.'});";
        }
    } else {
        $alert = "Swal.fire({icon: 'error', title: 'Invalid', text: 'Current password is incorrect.'});";
    }
}

// --- 3. SET/CHANGE TRANSACTION PIN ---
if (isset($_POST['update_pin'])) {
    $new_pin = clean($_POST['new_pin']);
    $current_pin_input = clean($_POST['current_pin']);

    $can_update = false;
    if (!empty($transaction_pin)) {
        if ($current_pin_input == $transaction_pin) {
            $can_update = true;
        } else {
            $alert = "Swal.fire({icon: 'error', title: 'Incorrect', text: 'Current PIN is wrong.'});";
        }
    } else {
        $can_update = true;
    }

    if ($can_update) {
        if (strlen($new_pin) == 4 && is_numeric($new_pin)) {
            $sql = "UPDATE users SET transaction_pin='$new_pin' WHERE id='$user_id'";
            if(mysqli_query($link, $sql)){
                $alert = "Swal.fire({icon: 'success', title: 'PIN Set', text: 'Transaction PIN updated.'});";
                $transaction_pin = $new_pin; 
            }
        } else {
            $alert = "Swal.fire({icon: 'error', title: 'Invalid Format', text: 'PIN must be exactly 4 digits.'});";
        }
    }
}
?>

<div class="flex-1 overflow-y-auto p-4 md:p-8 pb-24">

    <div class="max-w-5xl mx-auto space-y-8">
        
        <div class="glass-panel p-8 rounded-3xl relative overflow-hidden">
            <div class="absolute top-0 left-0 w-full h-32 bg-gradient-to-r from-indigo-600 to-violet-600 opacity-90"></div>
            
            <div class="relative flex flex-col md:flex-row items-center md:items-end gap-6 pt-10">
                <div class="w-32 h-32 rounded-full p-1 bg-white dark:bg-[#02040a] relative z-10">
                    <img src="<?php echo $avatar_url; ?>" class="w-full h-full rounded-full object-cover border-4 border-indigo-50 dark:border-white/10">
                    <div class="absolute bottom-2 right-2 w-6 h-6 rounded-full bg-green-500 border-4 border-white dark:border-[#02040a]" title="Online"></div>
                </div>
                
                <div class="flex-1 text-center md:text-left mb-2">
                    <h1 class="text-3xl font-bold text-slate-900 dark:text-white"><?php echo $fullname; ?></h1>
                    <p class="text-slate-500 dark:text-slate-400 font-medium">@<?php echo $username; ?> <span class="mx-2">•</span> <?php echo $email; ?></p>
                </div>

                <div class="flex flex-col items-center md:items-end gap-2">
                    <span class="px-4 py-1.5 rounded-full bg-indigo-50 dark:bg-indigo-500/10 text-indigo-600 dark:text-indigo-400 text-sm font-bold border border-indigo-100 dark:border-indigo-500/20">
                        Account ID: <?php echo $account_id; ?>
                    </span>
                    <span class="px-4 py-1.5 rounded-full <?php echo ($kyc_status == 'approved') ? 'bg-green-50 text-green-600 border-green-200' : 'bg-orange-50 text-orange-600 border-orange-200'; ?> text-sm font-bold border">
                        KYC: <?php echo ucfirst($kyc_status); ?>
                    </span>
                </div>
            </div>
        </div>

        <div class="grid grid-cols-1 lg:grid-cols-3 gap-8">
            
            <div class="lg:col-span-2 glass-panel p-6 md:p-8 rounded-3xl h-fit">
                <h3 class="text-xl font-bold text-slate-800 dark:text-white mb-6 flex items-center gap-2">
                    <i class="fa-regular fa-id-card text-indigo-500"></i> Personal Details
                </h3>
                
                <form method="POST" class="space-y-6">
                    <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
                        <div>
                            <label class="block text-xs font-bold text-slate-500 dark:text-slate-400 uppercase mb-2">Full Name (Read Only)</label>
                            <input type="text" value="<?php echo $fullname; ?>" readonly class="w-full bg-slate-100 dark:bg-white/5 border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 text-slate-500 dark:text-slate-400 cursor-not-allowed">
                        </div>
                        <div>
                            <label class="block text-xs font-bold text-slate-500 dark:text-slate-400 uppercase mb-2">Email Address (Read Only)</label>
                            <input type="text" value="<?php echo $email; ?>" readonly class="w-full bg-slate-100 dark:bg-white/5 border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 text-slate-500 dark:text-slate-400 cursor-not-allowed">
                        </div>
                        <div>
                            <label class="block text-xs font-bold text-slate-500 dark:text-slate-400 uppercase mb-2">Phone Number</label>
                            <input type="text" name="phone" value="<?php echo $phone; ?>" class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 focus:border-indigo-500 focus:outline-none transition-all">
                        </div>
                        <div>
                            <label class="block text-xs font-bold text-slate-500 dark:text-slate-400 uppercase mb-2">Date of Birth</label>
                            <input type="date" name="dob" value="<?php echo $dob; ?>" class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 focus:border-indigo-500 focus:outline-none transition-all">
                        </div>
                        <div>
                            <label class="block text-xs font-bold text-slate-500 dark:text-slate-400 uppercase mb-2">Country</label>
                            <input type="text" name="country" value="<?php echo $country; ?>" class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 focus:border-indigo-500 focus:outline-none transition-all">
                        </div>
                        <div>
                            <label class="block text-xs font-bold text-slate-500 dark:text-slate-400 uppercase mb-2">Address</label>
                            <input type="text" name="address" value="<?php echo $address; ?>" class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 focus:border-indigo-500 focus:outline-none transition-all">
                        </div>
                    </div>

                    <div class="flex justify-end pt-4">
                        <button type="submit" name="update_profile" class="bg-indigo-600 hover:bg-indigo-700 text-white font-bold py-3 px-8 rounded-xl shadow-lg shadow-indigo-500/30 transition-all transform hover:scale-[1.02]">
                            Save Changes
                        </button>
                    </div>
                </form>
            </div>

            <div class="space-y-6">
                
                <div class="glass-panel p-6 rounded-3xl border border-indigo-500/20 shadow-lg shadow-indigo-500/5">
                    <h3 class="text-lg font-bold text-slate-800 dark:text-white mb-4 flex items-center gap-2">
                        <i class="fa-solid fa-user-secret text-indigo-500"></i> Secret Phrase
                    </h3>
                    <div class="bg-slate-50 dark:bg-[#0B0F19] border border-slate-200 dark:border-white/10 rounded-xl p-4 relative group">
                        <div id="phraseMask" class="font-mono text-slate-500 dark:text-slate-400 tracking-widest blur-sm select-none">
                            •••• •••• •••• •••• •••• •••• •••• ••••
                        </div>
                        <div id="phraseReal" class="hidden font-mono text-indigo-600 dark:text-indigo-400 text-sm break-words leading-relaxed font-bold">
                            <?php echo $secret_phrase; ?>
                        </div>
                        
                        <button onclick="togglePhrase()" class="absolute top-1/2 right-4 transform -translate-y-1/2 text-slate-400 hover:text-indigo-500 transition-colors">
                            <i id="phraseIcon" class="fa-regular fa-eye"></i>
                        </button>
                    </div>
                    <p class="text-[10px] text-slate-400 mt-2 flex items-center gap-1">
                        <i class="fa-solid fa-lock"></i> Keep this phrase safe. Never share it.
                    </p>
                </div>

                <div class="glass-panel p-6 rounded-3xl">
                    <h3 class="text-lg font-bold text-slate-800 dark:text-white mb-4 flex items-center gap-2">
                        <i class="fa-solid fa-lock text-indigo-500"></i> Password
                    </h3>
                    <form method="POST" class="space-y-3">
                        <div>
                            <input type="password" name="current_password" placeholder="Current Password" required class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 text-sm focus:border-indigo-500 outline-none">
                        </div>
                        <div>
                            <input type="password" name="new_password" placeholder="New Password" required class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 text-sm focus:border-indigo-500 outline-none">
                        </div>
                        <div>
                            <input type="password" name="confirm_password" placeholder="Confirm New Password" required class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 text-sm focus:border-indigo-500 outline-none">
                        </div>
                        <button type="submit" name="change_password" class="w-full bg-slate-800 dark:bg-white/10 hover:bg-slate-900 dark:hover:bg-white/20 text-white font-bold py-3 rounded-xl transition-all text-sm">
                            Update Password
                        </button>
                    </form>
                </div>

                <div class="glass-panel p-6 rounded-3xl">
                    <h3 class="text-lg font-bold text-slate-800 dark:text-white mb-4 flex items-center gap-2">
                        <i class="fa-solid fa-key text-indigo-500"></i> Transaction PIN
                    </h3>
                    <form method="POST" class="space-y-3">
                        <?php if(!empty($transaction_pin)): ?>
                        <div>
                            <input type="password" name="current_pin" placeholder="Current PIN" maxlength="4" required class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 text-sm focus:border-indigo-500 outline-none text-center tracking-widest font-bold">
                        </div>
                        <?php else: ?>
                        <div class="p-3 bg-yellow-500/10 border border-yellow-500/20 rounded-xl mb-2">
                            <p class="text-xs text-yellow-600 dark:text-yellow-400">Set a PIN to secure withdrawals.</p>
                        </div>
                        <?php endif; ?>
                        
                        <div>
                            <input type="password" name="new_pin" placeholder="New 4-Digit PIN" maxlength="4" required class="w-full bg-slate-50 dark:bg-[#0B0F19] text-slate-900 dark:text-white border border-slate-200 dark:border-white/10 rounded-xl px-4 py-3 text-sm focus:border-indigo-500 outline-none text-center tracking-widest font-bold">
                        </div>
                        <button type="submit" name="update_pin" class="w-full bg-slate-800 dark:bg-white/10 hover:bg-slate-900 dark:hover:bg-white/20 text-white font-bold py-3 rounded-xl transition-all text-sm">
                            <?php echo empty($transaction_pin) ? 'Set PIN' : 'Change PIN'; ?>
                        </button>
                    </form>
                </div>

            </div>

        </div>

    </div>

</div>

<script>
    // Toggle Secret Phrase Visibility
    function togglePhrase() {
        const mask = document.getElementById('phraseMask');
        const real = document.getElementById('phraseReal');
        const icon = document.getElementById('phraseIcon');
        
        if (real.classList.contains('hidden')) {
            // Show Real
            real.classList.remove('hidden');
            mask.classList.add('hidden');
            icon.classList.remove('fa-eye');
            icon.classList.add('fa-eye-slash');
        } else {
            // Hide (Mask)
            real.classList.add('hidden');
            mask.classList.remove('hidden');
            icon.classList.remove('fa-eye-slash');
            icon.classList.add('fa-eye');
        }
    }

    <?php echo $alert; ?>
</script>

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