<?php
require_once '/home/tomtomgames.com/includes/config.php';
require_once '/home/tomtomgames.com/includes/db.php';

// 1. referral_tiers
db()->exec("CREATE TABLE IF NOT EXISTS referral_tiers (
    id INT AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(100) NOT NULL,
    min_referrals INT NOT NULL DEFAULT 1,
    tokens_per_ref DECIMAL(10,2) NOT NULL DEFAULT 10,
    bonus_tokens DECIMAL(10,2) NOT NULL DEFAULT 0,
    description VARCHAR(300),
    is_active TINYINT(1) DEFAULT 1,
    sort_order INT DEFAULT 0,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4");
echo "referral_tiers table OK\n";

// 2. Seed tiers
$count = (int)db()->query("SELECT COUNT(*) FROM referral_tiers")->fetchColumn();
if ($count == 0) {
    $seeds = [
        ['Bronze Referrer',  1,  5,   0,   'Earn 5 tokens for each verified referral',                1, 0],
        ['Silver Referrer',  5,  8,   25,  'Earn 8 tokens per referral + 25 bonus at 5 referrals',   1, 1],
        ['Gold Referrer',    10, 10,  100, 'Earn 10 tokens per referral + 100 bonus at 10 referrals', 1, 2],
        ['Elite Referrer',   25, 15,  250, 'Earn 15 tokens per referral + 250 bonus at 25 referrals', 1, 3],
    ];
    $st = db()->prepare("INSERT INTO referral_tiers (name,min_referrals,tokens_per_ref,bonus_tokens,description,is_active,sort_order) VALUES (?,?,?,?,?,?,?)");
    foreach ($seeds as $s) $st->execute($s);
    echo "4 tiers seeded\n";
} else {
    echo "Tiers already exist: $count\n";
}

// 3. referrals table
db()->exec("CREATE TABLE IF NOT EXISTS referrals (
    id INT AUTO_INCREMENT PRIMARY KEY,
    referrer_id INT NOT NULL,
    referred_id INT NOT NULL UNIQUE,
    tier_id INT,
    status ENUM('pending','verified','denied','deleted') DEFAULT 'pending',
    tokens_awarded DECIMAL(10,2) DEFAULT 0,
    admin_id INT,
    admin_note VARCHAR(300),
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    resolved_at DATETIME
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4");
echo "referrals table OK\n";

// 4. referral_social_shares
db()->exec("CREATE TABLE IF NOT EXISTS referral_social_shares (
    id INT AUTO_INCREMENT PRIMARY KEY,
    user_id INT NOT NULL,
    platform VARCHAR(50) NOT NULL,
    bonus_tokens DECIMAL(10,2) DEFAULT 5,
    status ENUM('pending','approved','denied') DEFAULT 'pending',
    admin_id INT,
    created_at DATETIME DEFAULT CURRENT_TIMESTAMP,
    resolved_at DATETIME
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4");
echo "referral_social_shares table OK\n";

// 5. Add referral_code to users
$cols = array_column(db()->query("SHOW COLUMNS FROM users")->fetchAll(), 'Field');
if (!in_array('referral_code', $cols)) {
    db()->exec("ALTER TABLE users ADD COLUMN referral_code VARCHAR(20) UNIQUE");
    echo "referral_code column added\n";
}

// 6. Add referred_by to users
if (!in_array('referred_by', $cols)) {
    db()->exec("ALTER TABLE users ADD COLUMN referred_by INT DEFAULT NULL");
    echo "referred_by column added\n";
}

// 7. Add referred_by to pending_registrations
$pcols = array_column(db()->query("SHOW COLUMNS FROM pending_registrations")->fetchAll(), 'Field');
if (!in_array('referred_by', $pcols)) {
    db()->exec("ALTER TABLE pending_registrations ADD COLUMN referred_by INT DEFAULT NULL");
    echo "pending_registrations.referred_by added\n";
}

// 8. Generate codes for users missing one
$users = db()->query("SELECT id FROM users WHERE referral_code IS NULL OR referral_code = ''")->fetchAll();
$upd = db()->prepare("UPDATE users SET referral_code=? WHERE id=?");
foreach ($users as $u) {
    $code = strtoupper(substr(md5($u['id'].uniqid()), 0, 8));
    $upd->execute([$code, $u['id']]);
}
echo count($users) . " users given referral codes\n";

// 9. Show sample
$sample = db()->query("SELECT username, referral_code FROM users LIMIT 5")->fetchAll();
foreach ($sample as $r) echo "  " . $r['username'] . ": " . $r['referral_code'] . "\n";

echo "\nDONE\n";