<?php

use classes\db;
use classes\department_wash_count_service;

function department_wash_count_integration_db(): db
{
    if (!integration_enabled()) {
        test()->markTestSkipped('Set RUN_INTEGRATION_TESTS=1 to run DB integration tests.');
    }

    $host = getenv('CONFIG_DB_HOST') ?: null;
    $user = getenv('CONFIG_DB_USER') ?: null;
    $password = getenv('CONFIG_DB_PASSWORD') ?: '';
    $database = getenv('CONFIG_DB_DATABASE') ?: null;
    if (!$host || !$user || !$database) {
        test()->markTestSkipped('Missing DB env vars: CONFIG_DB_HOST/CONFIG_DB_USER/CONFIG_DB_DATABASE.');
    }

    app_require('classes/db.php');
    app_require('classes/department_wash_count_service.php');

    $db = new db([
        'host' => $host,
        'user' => $user,
        'password' => $password,
        'database' => $database,
        'port' => (int)(getenv('CONFIG_DB_PORT') ?: 3306),
    ]);
    $db->connect();
    $GLOBALS['db'] = $db;

    department_wash_count_prepare_tables($db);

    return $db;
}

function department_wash_count_prepare_tables(db $db): void
{
    $db->query(
        'CREATE TABLE IF NOT EXISTS department_lanes (
            id INT AUTO_INCREMENT PRIMARY KEY,
            department_id INT NULL,
            name VARCHAR(255) NULL,
            dynamic_image_id INT NULL,
            selfserve_enabled TINYINT(1) NOT NULL DEFAULT 0
        )'
    );

    $db->query(
        'CREATE TABLE IF NOT EXISTS department_selfserve_conditions (
            id INT AUTO_INCREMENT PRIMARY KEY,
            department_id INT NULL,
            name VARCHAR(255) NULL,
            product INT NULL,
            action VARCHAR(64) NULL,
            order_index INT NOT NULL DEFAULT 0,
            deleted_at DATETIME NULL
        )'
    );

    $db->query(
        'CREATE TABLE IF NOT EXISTS department_selfserve_tasks (
            id INT AUTO_INCREMENT PRIMARY KEY,
            condition_id INT NULL,
            product INT NULL,
            description TEXT NULL,
            task VARCHAR(64) NULL,
            buttons TEXT NULL,
            order_index INT NOT NULL DEFAULT 0,
            deleted_at DATETIME NULL
        )'
    );

    $db->query(
        'CREATE TABLE IF NOT EXISTS products (
            id INT AUTO_INCREMENT PRIMARY KEY,
            name VARCHAR(255) NOT NULL,
            description TEXT NULL,
            price INT NOT NULL DEFAULT 0,
            is_wash TINYINT(1) NOT NULL DEFAULT 0,
            created_at DATETIME NULL DEFAULT CURRENT_TIMESTAMP,
            updated_at DATETIME NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
        )'
    );

    $db->query(
        'CREATE TABLE IF NOT EXISTS orders (
            id INT AUTO_INCREMENT PRIMARY KEY,
            customer_id INT NOT NULL,
            cashier_id INT NOT NULL,
            reference VARCHAR(255) NULL,
            notes TEXT NULL,
            department_id INT NOT NULL,
            reg_1 VARCHAR(64) NULL,
            reg_2 VARCHAR(64) NULL,
            reg_3 VARCHAR(64) NULL,
            created_at DATETIME NOT NULL,
            include_in_invoice TINYINT(1) NULL,
            wash_id VARCHAR(255) NULL,
            deleted_at DATETIME NULL
        )'
    );

    $db->query(
        'CREATE TABLE IF NOT EXISTS order_items (
            id INT AUTO_INCREMENT PRIMARY KEY,
            order_id INT NOT NULL,
            product_id INT NOT NULL,
            reference VARCHAR(255) NULL,
            notes TEXT NULL,
            cashier_id INT NOT NULL,
            price DECIMAL(10,2) NOT NULL DEFAULT 0,
            quantity INT NOT NULL DEFAULT 1,
            deleted_at DATETIME NULL
        )'
    );

    $db->query(
        'CREATE TABLE IF NOT EXISTS selfserve_wash_sessions (
            id INT AUTO_INCREMENT PRIMARY KEY,
            lane_id INT NOT NULL,
            department_id INT NOT NULL,
            reg VARCHAR(64) NOT NULL,
            status VARCHAR(64) NOT NULL,
            allowed TINYINT(1) NOT NULL DEFAULT 0,
            wash_started_at DATETIME NULL,
            machine_start_triggered_at DATETIME NULL,
            order_id INT NULL,
            completed_at DATETIME NULL,
            created_at DATETIME NULL,
            deleted_at DATETIME NULL
        )'
    );
}

function department_wash_count_insert_product(db $db, string $suffix, bool $isWash): int
{
    $productNameColumn = null;
    if ($db->num_rows($db->query("SHOW COLUMNS FROM products LIKE 'name'")) > 0) {
        $productNameColumn = 'name';
    } elseif ($db->num_rows($db->query("SHOW COLUMNS FROM products LIKE 'title'")) > 0) {
        $productNameColumn = 'title';
    } else {
        test()->markTestSkipped('Products table is missing both name and title columns required by this integration test.');
    }

    $escapedName = $db->escape_string('Wash count product ' . $suffix . ' ' . ($isWash ? 'wash' : 'minute'));
    $descriptionSql = $db->num_rows($db->query("SHOW COLUMNS FROM products LIKE 'description'")) > 0
        ? ', description'
        : '';
    $descriptionValueSql = $descriptionSql !== '' ? ", 'Integration wash count product'" : '';

    $db->query(
        "INSERT INTO products ($productNameColumn$descriptionSql, is_wash)
         VALUES ('$escapedName'$descriptionValueSql, " . ($isWash ? '1' : '0') . ')'
    );

    return (int)$db->insert_id();
}

function department_wash_count_insert_order(db $db, int $departmentId, int $productId, string $reference, string $createdAt, int $price = 100): int
{
    $escapedReference = $db->escape_string($reference);
    $escapedCreatedAt = $db->escape_string($createdAt);

    $db->query(
        "INSERT INTO orders (customer_id, cashier_id, reference, notes, department_id, reg_1, reg_2, reg_3, created_at)
         VALUES (1, 1, '$escapedReference', 'Integration test', $departmentId, 'COUNT$departmentId', '', '', '$escapedCreatedAt')"
    );
    $orderId = (int)$db->insert_id();

    $db->query(
        "INSERT INTO order_items (order_id, product_id, reference, notes, cashier_id, price, quantity)
         VALUES ($orderId, $productId, '$escapedReference', 'Integration test', 1, $price, 1)"
    );

    return $orderId;
}

function department_wash_count_insert_session(
    db $db,
    int $departmentId,
    string $reg,
    string $status,
    ?string $completedAt,
    ?int $orderId = null
): int {
    $escapedReg = $db->escape_string($reg);
    $escapedStatus = $db->escape_string($status);
    $completedAtSql = $completedAt === null ? 'NULL' : "'" . $db->escape_string($completedAt) . "'";
    $orderIdSql = $orderId === null ? 'NULL' : (string)$orderId;

    $db->query(
        "INSERT INTO selfserve_wash_sessions (lane_id, department_id, reg, status, allowed, wash_started_at, machine_start_triggered_at, order_id, completed_at, created_at)
         VALUES (1, $departmentId, '$escapedReg', '$escapedStatus', 1, NULL, NULL, $orderIdSql, $completedAtSql, $completedAtSql)"
    );

    return (int)$db->insert_id();
}

it('counts completed self-serve minute billing sessions site-wide and dedupes linked wash orders', function (): void {
    $db = department_wash_count_integration_db();
    $service = new department_wash_count_service();
    $suffix = (string)random_int(10000, 99999);
    $departmentId = 700000 + (int)$suffix;
    $orderIds = [];
    $productIds = [];
    $sessionIds = [];

    try {
        $washProductId = department_wash_count_insert_product($db, $suffix, true);
        $minuteProductId = department_wash_count_insert_product($db, $suffix, false);
        $productIds = [$washProductId, $minuteProductId];

        $orderIds[] = department_wash_count_insert_order($db, $departmentId, $washProductId, 'plain-wash-' . $suffix, '2026-04-01 10:15:00', 100);
        $linkedMinuteOrderId = department_wash_count_insert_order($db, $departmentId, $minuteProductId, 'linked-minute-' . $suffix, '2026-04-01 11:10:00', 25);
        $orderIds[] = $linkedMinuteOrderId;
        $linkedWashOrderId = department_wash_count_insert_order($db, $departmentId, $washProductId, 'linked-wash-' . $suffix, '2026-04-01 13:05:00', 100);
        $orderIds[] = $linkedWashOrderId;
        $orderIds[] = department_wash_count_insert_order($db, $departmentId, $minuteProductId, 'plain-minute-' . $suffix, '2026-04-01 14:00:00', 25);

        $sessionIds[] = department_wash_count_insert_session($db, $departmentId, 'LINKMIN' . $suffix, 'COMPLETED', '2026-04-01 12:00:00', $linkedMinuteOrderId);
        $sessionIds[] = department_wash_count_insert_session($db, $departmentId, 'STAND' . $suffix, 'COMPLETED', '2026-04-01 12:20:00');
        $sessionIds[] = department_wash_count_insert_session($db, $departmentId, 'LINKWASH' . $suffix, 'COMPLETED', '2026-04-01 13:30:00', $linkedWashOrderId);
        $sessionIds[] = department_wash_count_insert_session($db, $departmentId, 'FORCE' . $suffix, 'FORCE_STOPPED', '2026-04-01 15:00:00');
        $sessionIds[] = department_wash_count_insert_session($db, $departmentId, 'OPEN' . $suffix, 'COMPLETED', null);

        expect($service->countInDateRange('2026-04-01 00:00:00', '2026-04-01 23:59:59', $departmentId))->toBe(4);

        $hourRows = $service->countByHourForDepartments('2026-04-01 00:00:00', '2026-04-01 23:59:59', [$departmentId]);
        $countsByHour = [];
        foreach ($hourRows as $row) {
            $countsByHour[$row['hour_bucket']] = $row['wash_count'];
        }

        expect($countsByHour)->toMatchArray([
            '2026-04-01 10:00:00' => 1,
            '2026-04-01 11:00:00' => 1,
            '2026-04-01 12:00:00' => 1,
            '2026-04-01 13:00:00' => 1,
        ]);
        expect($countsByHour)->not->toHaveKey('2026-04-01 14:00:00')
            ->and($countsByHour)->not->toHaveKey('2026-04-01 15:00:00');

        $summary = $service->transactionSummary('2026-04-01 00:00:00', '2026-04-01 23:59:59', [$departmentId]);
        expect($summary)->toMatchArray([
            'quantity' => 4,
            'products' => 4,
            'earnings' => 250,
            'washes' => 4,
        ]);
    } finally {
        if ($sessionIds !== []) {
            $db->query('DELETE FROM selfserve_wash_sessions WHERE id IN (' . implode(',', array_map('intval', $sessionIds)) . ')');
        }
        if ($orderIds !== []) {
            $orderIdsSql = implode(',', array_map('intval', $orderIds));
            $db->query("DELETE FROM order_items WHERE order_id IN ($orderIdsSql)");
            $db->query("DELETE FROM orders WHERE id IN ($orderIdsSql)");
        }
        if ($productIds !== []) {
            $db->query('DELETE FROM products WHERE id IN (' . implode(',', array_map('intval', $productIds)) . ')');
        }
        $db->close();
    }
});