<?php
require 'db/config.php';
$db = db();
try {
    $db->exec("CREATE TABLE IF NOT EXISTS branches (
        id INT AUTO_INCREMENT PRIMARY KEY,
        name VARCHAR(100) NOT NULL,
        location VARCHAR(255),
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    ) ENGINE=InnoDB;");

    $db->exec("CREATE TABLE IF NOT EXISTS categories (
        id INT AUTO_INCREMENT PRIMARY KEY,
        name VARCHAR(100) NOT NULL,
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    ) ENGINE=InnoDB;");

    $db->exec("CREATE TABLE IF NOT EXISTS products (
        id INT AUTO_INCREMENT PRIMARY KEY,
        branch_id INT NOT NULL,
        category_id INT,
        name VARCHAR(255) NOT NULL,
        sku VARCHAR(50) UNIQUE,
        cost_price DECIMAL(15, 2) NOT NULL DEFAULT 0,
        selling_price DECIMAL(15, 2) NOT NULL DEFAULT 0,
        stock INT NOT NULL DEFAULT 0,
        created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
    ) ENGINE=InnoDB;");

    $count = $db->query("SELECT COUNT(*) FROM branches")->fetchColumn();
    if ($count == 0) {
        $db->exec("INSERT INTO branches (name, location) VALUES ('Pusat', 'Jakarta'), ('Cabang Bandung', 'Bandung')");
    }

    $countCat = $db->query("SELECT COUNT(*) FROM categories")->fetchColumn();
    if ($countCat == 0) {
        $db->exec("INSERT INTO categories (name) VALUES ('General'), ('Food'), ('Beverage')");
    }
    echo "DB Init Success";
} catch (Exception $e) {
    echo "Error: " . $e->getMessage();
}