<?php

declare(strict_types=1);

use classes\limited_backoffice_service;

usesApiSuite();

function limited_backoffice_manager_session(array $departmentIds, array $extraPermissions = []): array
{
    $permissions = [
        limited_backoffice_service::PERMISSION_ACCESS,
        limited_backoffice_service::PERMISSION_MANAGE_PRICES,
        limited_backoffice_service::PERMISSION_MANAGE_EMPLOYEES,
    ];
    foreach ($departmentIds as $departmentId) {
        $permissions[] = 'department_access_' . (int)$departmentId;
    }

    return api_fixtures()->createUserSession(array_values(array_unique(array_merge($permissions, $extraPermissions))));
}

function limited_backoffice_price_insert(int $departmentId, int $productId, int $price): void
{
    $statement = api_test_runtime()->db()->prepare(
        'INSERT INTO `product_department_prices` (`department_id`, `product_id`, `price`)
         VALUES (?, ?, ?)
         ON DUPLICATE KEY UPDATE `price` = VALUES(`price`)'
    );
    $statement->bind_param('iii', $departmentId, $productId, $price);
    $statement->execute();
    $statement->close();

    api_fixtures()->cleanupDeleteWhere('product_department_prices', [
        'department_id' => $departmentId,
        'product_id' => $productId,
    ]);
}

function limited_backoffice_price_value(int $departmentId, int $productId): ?int
{
    $row = api_test_runtime()->queryOne(
        'SELECT `price` FROM `product_department_prices` WHERE `department_id` = ' . $departmentId .
        ' AND `product_id` = ' . $productId . ' LIMIT 1'
    );

    return $row === null ? null : (int)$row['price'];
}

function limited_backoffice_cleanup_created_employee(int $employeeId): void
{
    $row = api_test_runtime()->queryOne(
        'SELECT `managed_group_id` FROM `limited_backoffice_employees` WHERE `user_id` = ' . $employeeId . ' LIMIT 1'
    );
    $groupId = (int)($row['managed_group_id'] ?? 0);

    api_fixtures()->cleanupDeleteWhere('limited_backoffice_employees', ['user_id' => $employeeId]);
    api_fixtures()->cleanupDeleteWhere('tokens', ['user_id' => $employeeId]);
    api_fixtures()->cleanupDeleteById('users', $employeeId);
    if ($groupId > 0) {
        api_fixtures()->cleanupDeleteWhere('groups_permissions', ['group_id' => $groupId]);
        api_fixtures()->cleanupDeleteById('groups', $groupId);
    }
}

function limited_backoffice_without_users_deleted_at(callable $callback): void
{
    $db = api_test_runtime()->db();
    $column = $db->query("SHOW COLUMNS FROM `users` LIKE 'deleted_at'");
    if ($column === false) {
        throw new RuntimeException('Unable to inspect users.deleted_at test column.');
    }

    $hadColumn = (int)$column->num_rows > 0;
    if ($hadColumn) {
        $db->query('ALTER TABLE `users` DROP COLUMN `deleted_at`');
    }

    try {
        $callback();
    } finally {
        if ($hadColumn) {
            $db->query('ALTER TABLE `users` ADD COLUMN `deleted_at` DATETIME NULL');
        }
    }
}

function limited_backoffice_without_department_prices_updated_at(callable $callback): void
{
    $db = api_test_runtime()->db();
    $column = $db->query("SHOW COLUMNS FROM `product_department_prices` LIKE 'updated_at'");
    if ($column === false) {
        throw new RuntimeException('Unable to inspect product_department_prices.updated_at test column.');
    }

    $hadColumn = (int)$column->num_rows > 0;
    if ($hadColumn) {
        $db->query('ALTER TABLE `product_department_prices` DROP COLUMN `updated_at`');
    }

    try {
        $callback();
    } finally {
        if ($hadColumn) {
            $db->query(
                'ALTER TABLE `product_department_prices`
                 ADD COLUMN `updated_at` DATETIME NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
                 AFTER `created_at`'
            );
        }
    }
}

it('lists and updates explicit prices only for assigned departments', function (): void {
    api_test_covers('GET /limited-backoffice/departments', 'happy');
    api_test_covers('GET /limited-backoffice/departments/{departmentId}/prices', 'happy');
    api_test_covers('PUT /limited-backoffice/departments/{departmentId}/prices', 'happy');

    $productDeletedAtColumn = api_test_runtime()->db()->query("SHOW COLUMNS FROM `products` LIKE 'deleted_at'");
    expect($productDeletedAtColumn)->not->toBeFalse();
    expect((int)$productDeletedAtColumn->num_rows)->toBe(0);

    $department = api_fixtures()->createDepartment(['name' => 'Limited Prices Own']);
    $otherDepartment = api_fixtures()->createDepartment(['name' => 'Limited Prices Other']);
    $category = api_fixtures()->createCategory(['name' => 'Limited Washes']);
    $product = api_fixtures()->createProduct([
        'name' => 'Limited Wash Product',
        'category' => $category['id'],
        'price' => 98765,
    ]);
    api_fixtures()->linkDepartmentCategory((int)$department['id'], (int)$category['id']);
    api_fixtures()->linkDepartmentCategory((int)$otherDepartment['id'], (int)$category['id']);
    limited_backoffice_price_insert((int)$department['id'], (int)$product['id'], 1234);
    limited_backoffice_price_insert((int)$otherDepartment['id'], (int)$product['id'], 4321);

    $session = limited_backoffice_manager_session([(int)$department['id']]);

    $departments = api_client()->get('/limited-backoffice/departments', $session['headers']);
    $departments
        ->assertStatus(200)
        ->assertEnvelope()
        ->assertSuccess();

    expect(array_column($departments->data(), 'id'))
        ->toContain((int)$department['id'])
        ->not->toContain((int)$otherDepartment['id']);

    $prices = api_client()->get('/limited-backoffice/departments/' . (int)$department['id'] . '/prices', $session['headers']);
    $prices
        ->assertStatus(200)
        ->assertEnvelope()
        ->assertSuccess();

    expect($prices->body)->not->toContain('98765');
    expect($prices->data()['categories'][0]['products'][0])
        ->toMatchArray([
            'id' => (int)$product['id'],
            'name' => 'Limited Wash Product',
            'price' => 1234,
        ]);

    $updated = api_client()->put('/limited-backoffice/departments/' . (int)$department['id'] . '/prices', [
        'prices' => [
            ['product_id' => (int)$product['id'], 'price' => '2222'],
        ],
    ], $session['headers']);

    $updated
        ->assertStatus(200)
        ->assertEnvelope()
        ->assertSuccess();

    expect(limited_backoffice_price_value((int)$department['id'], (int)$product['id']))->toBe(2222);
    expect(limited_backoffice_price_value((int)$otherDepartment['id'], (int)$product['id']))->toBe(4321);
});

it('updates department prices when the price table has no updated_at column', function (): void {
    api_test_covers('PUT /limited-backoffice/departments/{departmentId}/prices', 'schema compatibility');

    $department = api_fixtures()->createDepartment(['name' => 'Limited Prices Legacy Schema']);
    $category = api_fixtures()->createCategory(['name' => 'Limited Prices Legacy Category']);
    $products = [
        api_fixtures()->createProduct(['name' => 'Legacy Price One', 'category' => $category['id']]),
        api_fixtures()->createProduct(['name' => 'Legacy Price Two', 'category' => $category['id']]),
        api_fixtures()->createProduct(['name' => 'Legacy Price Three', 'category' => $category['id']]),
    ];
    api_fixtures()->linkDepartmentCategory((int)$department['id'], (int)$category['id']);

    foreach ($products as $index => $product) {
        limited_backoffice_price_insert((int)$department['id'], (int)$product['id'], 100 + $index);
    }

    $session = limited_backoffice_manager_session([(int)$department['id']]);
    limited_backoffice_without_department_prices_updated_at(function () use ($department, $products, $session): void {
        $updated = api_client()->put('/limited-backoffice/departments/' . (int)$department['id'] . '/prices', [
            'prices' => [
                ['product_id' => (int)$products[0]['id'], 'price' => '999999'],
                ['product_id' => (int)$products[1]['id'], 'price' => '999999'],
                ['product_id' => (int)$products[2]['id'], 'price' => '99999'],
            ],
        ], $session['headers']);

        $updated
            ->assertStatus(200)
            ->assertEnvelope()
            ->assertSuccess();

        expect(limited_backoffice_price_value((int)$department['id'], (int)$products[0]['id']))->toBe(999999);
        expect(limited_backoffice_price_value((int)$department['id'], (int)$products[1]['id']))->toBe(999999);
        expect(limited_backoffice_price_value((int)$department['id'], (int)$products[2]['id']))->toBe(99999);
    });
});

it('rejects cross-department price access, body spoofing, and outside products', function (): void {
    api_test_covers('GET /limited-backoffice/departments/{departmentId}/prices', 'auth');
    api_test_covers('PUT /limited-backoffice/departments/{departmentId}/prices', 'auth');

    $department = api_fixtures()->createDepartment(['name' => 'Limited Scope Own']);
    $otherDepartment = api_fixtures()->createDepartment(['name' => 'Limited Scope Other']);
    $category = api_fixtures()->createCategory(['name' => 'Limited Scope Category']);
    $otherCategory = api_fixtures()->createCategory(['name' => 'Limited Scope Other Category']);
    $product = api_fixtures()->createProduct(['category' => $category['id']]);
    $outsideProduct = api_fixtures()->createProduct(['category' => $otherCategory['id']]);
    api_fixtures()->linkDepartmentCategory((int)$department['id'], (int)$category['id']);
    api_fixtures()->linkDepartmentCategory((int)$otherDepartment['id'], (int)$otherCategory['id']);
    limited_backoffice_price_insert((int)$department['id'], (int)$product['id'], 100);
    limited_backoffice_price_insert((int)$otherDepartment['id'], (int)$outsideProduct['id'], 200);

    $session = limited_backoffice_manager_session([(int)$department['id']]);

    api_client()->get('/limited-backoffice/departments/' . (int)$otherDepartment['id'] . '/prices', $session['headers'])
        ->assertStatus(403)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMissingPermissions(['department_access_' . (int)$otherDepartment['id']]);

    api_client()->put('/limited-backoffice/departments/' . (int)$department['id'] . '/prices', [
        'department_id' => (int)$otherDepartment['id'],
        'prices' => [
            ['product_id' => (int)$product['id'], 'price' => 111],
        ],
    ], $session['headers'])
        ->assertStatus(400)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Department ID in body does not match the route.');

    api_client()->put('/limited-backoffice/departments/' . (int)$department['id'] . '/prices', [
        'prices' => [
            ['product_id' => (int)$product['id'], 'price' => 111],
            ['product_id' => (int)$outsideProduct['id'], 'price' => 111],
        ],
    ], $session['headers'])
        ->assertStatus(400)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Product is not available for this department.');

    expect(limited_backoffice_price_value((int)$department['id'], (int)$product['id']))->toBe(100);
    expect(limited_backoffice_price_value((int)$otherDepartment['id'], (int)$outsideProduct['id']))->toBe(200);
});

it('fails price setup gaps without exposing product defaults', function (): void {
    api_test_covers('GET /limited-backoffice/departments/{departmentId}/prices', 'failure');

    $department = api_fixtures()->createDepartment(['name' => 'Limited Setup Gap']);
    $category = api_fixtures()->createCategory(['name' => 'Limited Setup Gap Category']);
    $product = api_fixtures()->createProduct([
        'name' => 'Setup Gap Product',
        'category' => $category['id'],
        'price' => 87654,
    ]);
    api_fixtures()->linkDepartmentCategory((int)$department['id'], (int)$category['id']);

    $session = limited_backoffice_manager_session([(int)$department['id']]);

    $response = api_client()->get('/limited-backoffice/departments/' . (int)$department['id'] . '/prices', $session['headers']);
    $response
        ->assertStatus(409)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Department price setup is incomplete.');

    expect($response->body)->not->toContain('87654');
    expect($response->data()['missing_products'][0]['id'] ?? null)->toBe((int)$product['id']);
});

it('rejects invalid price batches and leaves existing prices unchanged', function (): void {
    api_test_covers('PUT /limited-backoffice/departments/{departmentId}/prices', 'validation');

    $department = api_fixtures()->createDepartment(['name' => 'Limited Invalid Prices']);
    $category = api_fixtures()->createCategory(['name' => 'Limited Invalid Prices Category']);
    $firstProduct = api_fixtures()->createProduct(['category' => $category['id']]);
    $secondProduct = api_fixtures()->createProduct(['category' => $category['id']]);
    api_fixtures()->linkDepartmentCategory((int)$department['id'], (int)$category['id']);
    limited_backoffice_price_insert((int)$department['id'], (int)$firstProduct['id'], 100);
    limited_backoffice_price_insert((int)$department['id'], (int)$secondProduct['id'], 200);

    $session = limited_backoffice_manager_session([(int)$department['id']]);

    foreach ([null, '', 'abc', -1] as $invalidPrice) {
        api_client()->put('/limited-backoffice/departments/' . (int)$department['id'] . '/prices', [
            'prices' => [
                ['product_id' => (int)$firstProduct['id'], 'price' => 999],
                ['product_id' => (int)$secondProduct['id'], 'price' => $invalidPrice],
            ],
        ], $session['headers'])
            ->assertStatus(400)
            ->assertEnvelope()
            ->assertSuccess(false);

        expect(limited_backoffice_price_value((int)$department['id'], (int)$firstProduct['id']))->toBe(100);
        expect(limited_backoffice_price_value((int)$department['id'], (int)$secondProduct['id']))->toBe(200);
    }

    api_client()->put('/limited-backoffice/departments/' . (int)$department['id'] . '/prices', [
        'prices' => [
            ['product_id' => (int)$firstProduct['id'], 'price' => 999],
        ],
    ], $session['headers'])
        ->assertStatus(400)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Price is required for every department product.');

    expect(limited_backoffice_price_value((int)$department['id'], (int)$firstProduct['id']))->toBe(100);
});

it('creates updates lists and deactivates scoped employees without exposing raw permissions', function (): void {
    limited_backoffice_without_users_deleted_at(function (): void {
    api_test_covers('GET /limited-backoffice/roles', 'happy');
    api_test_covers('GET /limited-backoffice/employees', 'happy');
    api_test_covers('POST /limited-backoffice/employees', 'happy');
    api_test_covers('PUT /limited-backoffice/employees/{employeeId}', 'happy');
    api_test_covers('DELETE /limited-backoffice/employees/{employeeId}', 'happy');

    $usersDeletedAtColumn = api_test_runtime()->db()->query("SHOW COLUMNS FROM `users` LIKE 'deleted_at'");
    expect($usersDeletedAtColumn)->not->toBeFalse();
    expect((int)$usersDeletedAtColumn->num_rows)->toBe(0);

    $department = api_fixtures()->createDepartment(['name' => 'Limited Employee Department']);
    $session = limited_backoffice_manager_session([(int)$department['id']]);

    $roles = api_client()->get('/limited-backoffice/roles', $session['headers']);
    $roles
        ->assertStatus(200)
        ->assertEnvelope()
        ->assertSuccess();

    expect(array_column($roles->data(), 'key'))->toBe(['viewer', 'cashier', 'booking_coordinator', 'operations_lead', 'department_admin']);
    $rolesByKey = array_column($roles->data(), null, 'key');
    expect($rolesByKey['viewer']['permission_groups'] ?? null)->toBe([
        [
            'key' => 'account',
            'capabilities' => ['sign_in', 'view_own_permissions'],
        ],
    ]);
    $departmentAdminGroups = array_column($rolesByKey['department_admin']['permission_groups'] ?? [], 'capabilities', 'key');
    expect($departmentAdminGroups['limited_backoffice'] ?? null)->toBe([
        'open_limited_backoffice',
        'manage_department_prices',
        'manage_employee_access',
    ]);
    expect($roles->body)->not->toContain('department_access_');
    $rolePayload = $roles->data();
    $rolePayloadStrings = [];
    array_walk_recursive($rolePayload, static function ($value) use (&$rolePayloadStrings): void {
        if (is_string($value)) {
            $rolePayloadStrings[] = $value;
        }
    });
    foreach ([
        'list_orders',
        'add_order',
        'edit_order',
        'delete_order',
        'list_order_items',
        'add_order_items',
        'edit_order_items',
        'delete_order_items',
        'charge_order',
        'list_bookings',
        'list_own_bookings',
        'edit_bookings',
        'add_booking',
        'complete_bookings',
        'resend_booking_confirmations',
        'department_timebookings_entries_get',
        'department_timebookings_entries_post',
        'department_timebookings_entries_put',
        'statistics_orders_new',
        'statistics_bookings_new',
        'limited_backoffice_access',
        'limited_backoffice_prices_manage',
        'limited_backoffice_employees_manage',
    ] as $rawPermission) {
        expect($rolePayloadStrings)->not->toContain($rawPermission);
    }

    $created = api_client()->post('/limited-backoffice/employees', [
        'display_name' => 'Limited Cashier',
        'email' => 'limited-cashier@example.test',
        'password' => 'Secret123!',
        'role_key' => 'cashier',
        'department_ids' => [(int)$department['id']],
    ], $session['headers']);

    $created
        ->assertStatus(200)
        ->assertEnvelope()
        ->assertSuccess();

    $employeeId = (int)($created->data()['id'] ?? 0);
    expect($employeeId)->toBeGreaterThan(0);
    limited_backoffice_cleanup_created_employee($employeeId);
    expect($created->body)->not->toContain('department_access_');
    expect($created->body)->not->toContain('permissions');

    $groupRow = api_test_runtime()->queryOne(
        'SELECT `managed_group_id` FROM `limited_backoffice_employees` WHERE `user_id` = ' . $employeeId . ' LIMIT 1'
    );
    $groupId = (int)($groupRow['managed_group_id'] ?? 0);
    $permissionRows = api_test_runtime()->db()->query(
        'SELECT `permission` FROM `groups_permissions` WHERE `group_id` = ' . $groupId
    )->fetch_all(MYSQLI_ASSOC);
    $permissions = array_column($permissionRows, 'permission');
    expect($permissions)
        ->toContain('department_access_' . (int)$department['id'])
        ->toContain('add_order')
        ->not->toContain('superuser');

    $updated = api_client()->put('/limited-backoffice/employees/' . $employeeId, [
        'display_name' => 'Limited Lead',
        'role_key' => 'operations_lead',
        'department_ids' => [(int)$department['id']],
    ], $session['headers']);
    $updated
        ->assertStatus(200)
        ->assertEnvelope()
        ->assertSuccess();

    expect($updated->data()['display_name'] ?? null)->toBe('Limited Lead');
    expect($updated->data()['role']['key'] ?? null)->toBe('operations_lead');

    $list = api_client()->get('/limited-backoffice/employees', $session['headers']);
    $ids = array_column($list->data(), 'id');
    expect($ids)->toContain($employeeId);
    expect($list->body)->not->toContain('department_access_');

    $deactivated = api_client()->delete('/limited-backoffice/employees/' . $employeeId, null, $session['headers']);
    $deactivated
        ->assertStatus(200)
        ->assertEnvelope()
        ->assertSuccess();

    expect($deactivated->data()['active'] ?? true)->toBeFalse();
    $userRow = api_test_runtime()->queryOne('SELECT `password`, `group_id` FROM `users` WHERE `id` = ' . $employeeId);
    expect($userRow)->not->toBeNull();
    expect(array_key_exists('password', $userRow ?? []))->toBeTrue();
    expect($userRow['password'])->toBeNull();
    expect((int)($userRow['group_id'] ?? -1))->toBe(0);
    $employeeRow = api_test_runtime()->queryOne(
        'SELECT `deactivated_at` FROM `limited_backoffice_employees` WHERE `user_id` = ' . $employeeId . ' LIMIT 1'
    );
    expect($employeeRow['deactivated_at'] ?? null)->not->toBeNull();
    });
});

it('rejects employee scopes roles raw permissions self edits superusers and shared groups', function (): void {
    api_test_covers('POST /limited-backoffice/employees', 'validation');
    api_test_covers('PUT /limited-backoffice/employees/{employeeId}', 'validation');

    $department = api_fixtures()->createDepartment(['name' => 'Limited Employee Own']);
    $otherDepartment = api_fixtures()->createDepartment(['name' => 'Limited Employee Other']);
    $session = limited_backoffice_manager_session([(int)$department['id']]);

    api_client()->post('/limited-backoffice/employees', [
        'display_name' => 'Outside Employee',
        'password' => 'Secret123!',
        'role_key' => 'cashier',
        'department_ids' => [(int)$otherDepartment['id']],
    ], $session['headers'])
        ->assertStatus(403)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMissingPermissions(['department_access_' . (int)$otherDepartment['id']]);

    api_client()->post('/limited-backoffice/employees', [
        'display_name' => 'Raw Employee',
        'password' => 'Secret123!',
        'role_key' => 'cashier',
        'department_ids' => [(int)$department['id']],
        'permissions' => ['superuser'],
    ], $session['headers'])
        ->assertStatus(400)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Raw permission and group assignment is not allowed.');

    api_client()->post('/limited-backoffice/employees', [
        'display_name' => 'Unknown Role Employee',
        'password' => 'Secret123!',
        'role_key' => 'superuser',
        'department_ids' => [(int)$department['id']],
    ], $session['headers'])
        ->assertStatus(400)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Unknown role.');

    api_client()->put('/limited-backoffice/employees/' . (int)$session['user']['id'], [
        'display_name' => 'Self Edit',
    ], $session['headers'])
        ->assertStatus(403)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Managers cannot edit themselves.');

    $superuser = api_fixtures()->createUser(['group_id' => 1]);
    api_test_runtime()->db()->query(
        'INSERT INTO `limited_backoffice_employees`
            (`user_id`, `managed_group_id`, `role_key`, `department_ids`, `created_by_user_id`)
         VALUES (' . (int)$superuser['id'] . ", 1, 'department_admin', '[" . (int)$department['id'] . "]', " . (int)$session['user']['id'] . ')'
    );
    api_fixtures()->cleanupDeleteWhere('limited_backoffice_employees', ['user_id' => (int)$superuser['id']]);

    api_client()->put('/limited-backoffice/employees/' . (int)$superuser['id'], [
        'display_name' => 'Edited Superuser',
    ], $session['headers'])
        ->assertStatus(403)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Cannot manage superuser accounts.');

    $sharedGroup = api_fixtures()->createGroup();
    $firstSharedUser = api_fixtures()->createUser(['group_id' => $sharedGroup['id']]);
    api_fixtures()->createUser(['group_id' => $sharedGroup['id']]);
    $departmentJson = '[' . (int)$department['id'] . ']';
    api_test_runtime()->db()->query(
        'INSERT INTO `limited_backoffice_employees`
            (`user_id`, `managed_group_id`, `role_key`, `department_ids`, `created_by_user_id`)
         VALUES (' . (int)$firstSharedUser['id'] . ', ' . (int)$sharedGroup['id'] . ", 'viewer', '" . $departmentJson . "', " . (int)$session['user']['id'] . ')'
    );
    api_fixtures()->cleanupDeleteWhere('limited_backoffice_employees', ['user_id' => (int)$firstSharedUser['id']]);

    api_client()->put('/limited-backoffice/employees/' . (int)$firstSharedUser['id'], [
        'display_name' => 'Edited Shared Group',
    ], $session['headers'])
        ->assertStatus(403)
        ->assertEnvelope()
        ->assertSuccess(false)
        ->assertMessage('Cannot manage shared groups.');
});