<?php
// Database configuration
define('DB_PATH', __DIR__ . '/../db/markers.db');

// Create db directory if it doesn't exist
if (!is_dir(__DIR__ . '/../db')) {
    mkdir(__DIR__ . '/../db', 0777, true);
}

// Set full permissions on db directory
@chmod(__DIR__ . '/../db', 0777);

// Connect to SQLite database
function getDB() {
    try {
        // Ensure full permissions on db directory and database file
        @chmod(__DIR__ . '/../db', 0777);
        
        $db = new PDO('sqlite:' . DB_PATH);
        $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

        // Set full permissions on database file
        if (file_exists(DB_PATH)) {
            @chmod(DB_PATH, 0777);
        }

        // Initialize database schema
        initializeDB($db);

        return $db;
    } catch (PDOException $e) {
        die(json_encode(['error' => 'Database connection failed: ' . $e->getMessage()]));
    }
}

// Initialize database schema
function initializeDB($db) {
    $db->exec('
        CREATE TABLE IF NOT EXISTS markers (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            name VARCHAR(255) NOT NULL,
            latitude REAL NOT NULL,
            longitude REAL NOT NULL,
            open_24_hours BOOLEAN DEFAULT 0,
            created_at DATETIME DEFAULT CURRENT_TIMESTAMP
        );
        CREATE TABLE IF NOT EXISTS roads (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            name VARCHAR(255) NOT NULL,
            status VARCHAR(100) NOT NULL,
            length REAL NOT NULL,
            coordinates TEXT NOT NULL,
            created_at DATETIME DEFAULT CURRENT_TIMESTAMP
        );
        CREATE TABLE IF NOT EXISTS parcels (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            owner_status VARCHAR(100) NOT NULL,
            area REAL NOT NULL,
            coordinates TEXT NOT NULL,
            created_at DATETIME DEFAULT CURRENT_TIMESTAMP
        );
    ');
}

// Set JSON header
header('Content-Type: application/json');
?>