<?php
// Connect to the SQLite database
$db = new PDO('sqlite:Databases/ecobuddy.sqlite');
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

// List of real first names for usernames
$firstNames = [
    'James', 'John', 'Robert', 'Michael', 'William', 'David', 'Richard', 'Joseph', 'Thomas', 'Charles',
    'Christopher', 'Daniel', 'Matthew', 'Anthony', 'Mark', 'Donald', 'Steven', 'Paul', 'Andrew', 'Joshua',
    'Kenneth', 'Kevin', 'Brian', 'George', 'Timothy', 'Ronald', 'Edward', 'Jason', 'Jeffrey', 'Ryan',
    'Jacob', 'Gary', 'Nicholas', 'Eric', 'Jonathan', 'Stephen', 'Larry', 'Justin', 'Scott', 'Brandon',
    'Benjamin', 'Samuel', 'Gregory', 'Alexander', 'Frank', 'Patrick', 'Raymond', 'Jack', 'Dennis', 'Jerry',
    'Tyler', 'Aaron', 'Jose', 'Adam', 'Nathan', 'Henry', 'Douglas', 'Zachary', 'Peter', 'Kyle',
    'Ethan', 'Walter', 'Noah', 'Jeremy', 'Christian', 'Keith', 'Roger', 'Terry', 'Gerald', 'Harold',
    'Sean', 'Austin', 'Carl', 'Arthur', 'Lawrence', 'Dylan', 'Jesse', 'Jordan', 'Bryan', 'Billy',
    'Joe', 'Bruce', 'Gabriel', 'Logan', 'Albert', 'Willie', 'Alan', 'Juan', 'Wayne', 'Elijah',
    'Randy', 'Roy', 'Vincent', 'Ralph', 'Eugene', 'Russell', 'Bobby', 'Mason', 'Philip', 'Louis'
];

// List of common words for password generation
$words = [
    'Apple', 'Banana', 'Cherry', 'Dragon', 'Eagle', 'Forest', 'Garden', 'Harbor', 'Island', 'Jungle',
    'Kingdom', 'Lemon', 'Mountain', 'Nature', 'Ocean', 'Planet', 'Queen', 'River', 'Summer', 'Tiger',
    'Universe', 'Volcano', 'Winter', 'Yellow', 'Zebra', 'Castle', 'Diamond', 'Emerald', 'Flower', 'Galaxy',
    'Horizon', 'Iceberg', 'Journey', 'Knight', 'Legend', 'Meadow', 'Nebula', 'Oasis', 'Palace', 'Quasar',
    'Rainbow', 'Sapphire', 'Thunder', 'Unicorn', 'Victory', 'Whisper', 'Xylophone', 'Yacht', 'Zephyr', 'Autumn',
    'Breeze', 'Cascade', 'Dolphin', 'Eclipse', 'Falcon', 'Glacier', 'Harmony', 'Infinity', 'Jasmine', 'Kaleidoscope',
    'Lighthouse', 'Mirage', 'Nightfall', 'Orchard', 'Phoenix', 'Quicksilver', 'Radiance', 'Serenity', 'Twilight', 'Umbrella'
];

// Check if we already have users with these names
$existingUsers = [];
$stmt = $db->query("SELECT username FROM ecoUser");
while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
    $existingUsers[] = $row['username'];
}

// Prepare the SQL statement for inserting users
$insertStmt = $db->prepare("INSERT INTO ecoUser (username, password, userType) VALUES (?, ?, ?)");

// Create a file to store usernames and passwords
$file = fopen("user_credentials.txt", "w");
fwrite($file, "Username,Password\n");

// Generate 50 users
$usersAdded = 0;
$usedNames = [];
shuffle($firstNames);

foreach ($firstNames as $name) {
    if ($usersAdded >= 50) break;
    
    // Skip if the name is already in the database
    if (in_array($name, $existingUsers) || in_array($name, $usedNames)) {
        continue;
    }
    
    // Generate password in format (Word)(Word)(Word)(Digit)
    $password = $words[array_rand($words)] . $words[array_rand($words)] . $words[array_rand($words)] . rand(0, 9);
    
    // Hash the password using SHA-256
    $hashedPassword = hash('sha256', $password);
    
    // Insert the user into the database (userType 2 is for standard users)
    $insertStmt->execute([$name, $hashedPassword, 2]);
    
    // Write the credentials to the file
    fwrite($file, "$name,$password\n");
    
    $usedNames[] = $name;
    $usersAdded++;
    
    echo "Added user: $name\n";
}

fclose($file);

echo "\nSuccessfully added $usersAdded users to the database.\n";
echo "Usernames and passwords have been saved to user_credentials.txt\n";