<?php
/**
 * Demo Data Seeder — additional sales orders
 * Run once after demo_seed.php + demo_seed_transactions.php: php demo_seed_more_orders.php
 *
 * demo_seed_transactions.php only creates 1 sales order (via the quotation ->
 * order -> invoice cycle). This adds 4 more direct orders (no quotation) to
 * give the Orders list page realistic volume and status variety:
 *   - 2 left in Draft (status=0) — never confirmed
 *   - 2 Confirmed (status=1) — stock-out auto-approved via FIFO bin selection
 *
 * All writes go through OrderManager (the same class the app itself uses),
 * wrapped in dbTransaction(). Safe to re-run: guarded by order.notes markers.
 */

if (PHP_SAPI !== 'cli') {
    http_response_code(403);
    exit('Run via CLI only: php demo_seed_more_orders.php');
}

$_SESSION = [];

require __DIR__ . '/app/config.php';
require __DIR__ . '/app/dbconn.php';
require __DIR__ . '/app/assets/utils/db_helpers.php';
require __DIR__ . '/app/assets/utils/classes/WarehouseManager.php';
require __DIR__ . '/app/assets/utils/classes/StockManager.php';
require __DIR__ . '/app/assets/utils/classes/OrderManager.php';

function info(string $msg): void { echo "\033[36m  •\033[0m {$msg}\n"; }
function ok(string $msg): void   { echo "\033[32m  ✓\033[0m {$msg}\n"; }
function skip(string $msg): void { echo "\033[33m  –\033[0m {$msg}\n"; }

function buildLineItem(array $products, string $sku, float $qty): array {
    $p = $products[$sku];
    $unit_price  = (float)$p['price'];
    $total_price = round($qty * $unit_price, 4);
    $tax_rate    = 7.0;
    $tax_amount  = round($total_price * $tax_rate / 100, 4);
    return [
        'product_sku'  => $sku,
        'product_name' => $p['product_name'],
        'quantity'     => $qty,
        'unit_price'   => $unit_price,
        'total_price'  => $total_price,
        'tax_amount'   => $tax_amount,
        'tax_rate'     => $tax_rate,
    ];
}

echo "\n\033[1m=== brnwms Demo Data Seeder — more sales orders ===\033[0m\n\n";

// ── Resolve shared context (company, warehouse, products, customers, dept) ────
$sth = $pdo1->prepare("SELECT company_id FROM company_list WHERE channel_name = 'demo' LIMIT 1");
$sth->execute();
$company_id = (int)$sth->fetchColumn();
if (!$company_id) { exit("ERROR: demo company not found — run demo_seed.php first.\n"); }

$sth = $pdo1->prepare("SELECT user_id FROM user WHERE username = 'admin' LIMIT 1");
$sth->execute();
$owner_user_id = (int)$sth->fetchColumn();

$sth = $pdo2->prepare("SELECT id FROM md_warehouse WHERE company_id = :c AND warehouse_name = 'Main Warehouse' LIMIT 1");
$sth->execute([':c' => $company_id]);
$main_wh = (int)$sth->fetchColumn();

$sth = $pdo2->prepare("SELECT id FROM md_department WHERE company_id = :c AND dept_code = 'SALES' LIMIT 1");
$sth->execute([':c' => $company_id]);
$sales_dept_id = (int)$sth->fetchColumn();
if (!$sales_dept_id) { exit("ERROR: SALES department not found — run demo_seed_transactions.php first.\n"); }

$sth = $pdo2->prepare("SELECT sku, product_name, price FROM md_product WHERE company_id = :c");
$sth->execute([':c' => $company_id]);
$products = $sth->fetchAll(PDO::FETCH_ASSOC | PDO::FETCH_UNIQUE);

// contact_type holds an md_contact_type id — resolve 'Customer' by name, not by a fixed id.
$sth = $pdo2->prepare(
    "SELECT c.id, c.contact_name FROM md_contact c
     JOIN md_contact_type t ON t.company_id = c.company_id AND t.id = c.contact_type
     WHERE c.company_id = :c AND t.contact_type = 'Customer' ORDER BY c.id"
);
$sth->execute([':c' => $company_id]);
$customers = $sth->fetchAll(PDO::FETCH_ASSOC);
$customer_ids = array_column($customers, 'id');

$logging = ['user_id' => $owner_user_id, 'dt' => date('Y-m-d H:i:s'), 'login' => null, 'action' => 'seed_more_orders'];

$orderMgmt = new OrderManager($pdo2, $company_id);

// ── Order definitions ──────────────────────────────────────────────────────
$order_defs = [
    ['marker' => 'Demo seed extra order 1', 'customer_idx' => 1, 'confirm' => false,
     'items' => [['sku' => 'EL-001', 'qty' => 10], ['sku' => 'PK-002', 'qty' => 5]]],
    ['marker' => 'Demo seed extra order 2', 'customer_idx' => 2, 'confirm' => true,
     'items' => [['sku' => 'BV-003', 'qty' => 20], ['sku' => 'OF-002', 'qty' => 8]]],
    ['marker' => 'Demo seed extra order 3', 'customer_idx' => 3, 'confirm' => true,
     'items' => [['sku' => 'EL-004', 'qty' => 5], ['sku' => 'PK-003', 'qty' => 30]]],
    ['marker' => 'Demo seed extra order 4', 'customer_idx' => 0, 'confirm' => false,
     'items' => [['sku' => 'OF-004', 'qty' => 10], ['sku' => 'BV-001', 'qty' => 15]]],
];

echo "--- Sales orders ---\n";

foreach ($order_defs as $d) {
    $sth = $pdo2->prepare("SELECT id, status FROM td_order WHERE company_id = :c AND notes = :n LIMIT 1");
    $sth->execute([':c' => $company_id, ':n' => $d['marker']]);
    $existing = $sth->fetch(PDO::FETCH_ASSOC);

    if ($existing) {
        skip("{$d['marker']} already exists (id={$existing['id']}, status={$existing['status']})");
        continue;
    }

    $customer_id = $customer_ids[$d['customer_idx']];
    $items = array_map(
        fn($it) => buildLineItem($products, $it['sku'], $it['qty']) + ['warehouse_id' => $main_wh],
        $d['items']
    );

    $order_id = dbTransaction($pdo2, function ($pdo2) use ($orderMgmt, $customer_id, $sales_dept_id, $items, $logging, $d) {
        // No 'source' -> direct WMS order -> starts as Draft (status=0) immediately.
        $oid = $orderMgmt->saveOrder([
            'id' => 0, 'contact_id' => $customer_id, 'department_id' => $sales_dept_id,
            'order_date' => date('Y-m-d'), 'items' => $items, 'discount' => 0,
            'shipping_fee' => 0, 'notes' => $d['marker'],
        ], $logging);

        if ($d['confirm']) {
            $orderMgmt->confirmOrder($oid, bin2hex(random_bytes(16)), $logging, true); // auto-approve stock-out
        }

        return $oid;
    });

    $state = $d['confirm'] ? 'confirmed (stock-out auto-approved)' : 'left as draft';
    ok("Created order {$d['marker']} (id={$order_id}), {$state}");
}

echo "\n\033[1m=== Done ===\033[0m\n\n";