<?php

use App\Models\User;
use App\Models\Employee;
use App\Models\PayrollRun;
use App\Models\PayrollEntry;
use App\Models\Payslip;

test('payslip number generation is unique and appends sequential suffixes', function () {
    // 1. Create Company user
    $company = User::create([
        'name' => 'Test Company',
        'email' => 'company_' . rand(1000, 9999) . '@test.com',
        'password' => bcrypt('password'),
        'type' => 'company',
    ]);

    // 2. Create Employee user
    $employeeUser = User::create([
        'name' => 'Test Employee',
        'email' => 'employee_' . rand(1000, 9999) . '@test.com',
        'password' => bcrypt('password'),
        'type' => 'employee',
    ]);

    $employee = Employee::create([
        'user_id' => $employeeUser->id,
        'employee_id' => 'EMP-' . rand(1000, 9999),
        'date_of_joining' => '2026-01-01',
        'employee_status' => 'active',
        'created_by' => $company->id,
    ]);

    // 3. Create Payroll Runs
    $payrollRun1 = PayrollRun::create([
        'title' => 'June 1-15 2026',
        'payroll_frequency' => 'semi-monthly',
        'pay_period_start' => '2026-06-01',
        'pay_period_end' => '2026-06-15',
        'pay_date' => '2026-06-30',
        'status' => 'draft',
        'created_by' => $company->id,
    ]);

    $payrollRun2 = PayrollRun::create([
        'title' => 'June 16-30 2026',
        'payroll_frequency' => 'semi-monthly',
        'pay_period_start' => '2026-06-16',
        'pay_period_end' => '2026-06-30',
        'pay_date' => '2026-06-30',
        'status' => 'draft',
        'created_by' => $company->id,
    ]);

    // 4. Create Payroll Entries
    $payrollEntry1 = PayrollEntry::create([
        'payroll_run_id' => $payrollRun1->id,
        'employee_id' => $employeeUser->id,
        'basic_salary' => 10000,
        'created_by' => $company->id,
    ]);

    $payrollEntry2 = PayrollEntry::create([
        'payroll_run_id' => $payrollRun2->id,
        'employee_id' => $employeeUser->id,
        'basic_salary' => 10000,
        'created_by' => $company->id,
    ]);

    $employeeIdForNumber = $employee->employee_id; // Will pad to 4 digits if numeric, or keep as string
    $payDate = '2026-06-30';

    // Step 5: Generate first payslip number
    $num1 = Payslip::generatePayslipNumber($employeeUser->id, $payDate);
    
    // Create a payslip with this number
    $payslip1 = Payslip::create([
        'payroll_entry_id' => $payrollEntry1->id,
        'employee_id' => $employeeUser->id,
        'payslip_number' => $num1,
        'pay_period_start' => '2026-06-01',
        'pay_period_end' => '2026-06-15',
        'pay_date' => $payDate,
        'status' => 'generated',
        'created_by' => $company->id,
    ]);

    // Step 6: Generate second payslip number for the same employee/date
    $num2 = Payslip::generatePayslipNumber($employeeUser->id, $payDate);
    expect($num2)->toBe($num1 . '-1');

    // Create a payslip with this second number
    $payslip2 = Payslip::create([
        'payroll_entry_id' => $payrollEntry2->id,
        'employee_id' => $employeeUser->id,
        'payslip_number' => $num2,
        'pay_period_start' => '2026-06-16',
        'pay_period_end' => '2026-06-30',
        'pay_date' => $payDate,
        'status' => 'generated',
        'created_by' => $company->id,
    ]);

    // Step 7: Generate third payslip number
    $num3 = Payslip::generatePayslipNumber($employeeUser->id, $payDate);
    expect($num3)->toBe($num1 . '-2');
});