<?php

use App\Models\User;
use App\Models\PayrollRun;
use App\Models\PayrollEntry;
use Illuminate\Support\Facades\DB;

test('backfill migration correctly populates overtime columns from json earnings breakdown', function () {
    // 1. Create a Company user
    $company = User::create([
        'name' => 'Test Company',
        'email' => 'company_' . rand(1000, 9999) . '@test.com',
        'password' => bcrypt('password'),
        'type' => 'company',
    ]);

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

    // 3. Create a Payroll Run
    $payrollRun = PayrollRun::create([
        'title' => 'June 11-25 2026',
        'payroll_frequency' => 'semi-monthly',
        'pay_period_start' => '2026-06-11',
        'pay_period_end' => '2026-06-25',
        'pay_date' => '2026-06-30',
        'status' => 'draft',
        'created_by' => $company->id,
    ]);

    // 4. Create a Payroll Entry simulating the old bug state (0 in DB columns, but OT present in JSON)
    $earningsBreakdown = [
        'basic_salary' => 10000.00,
        'summary' => [
            'days_worked' => 10,
            'reg_ot_hours' => '3.50',
            'reg_ot_amount' => 450.75,
        ]
    ];

    $entry = PayrollEntry::create([
        'payroll_run_id' => $payrollRun->id,
        'employee_id' => $employee->id,
        'basic_salary' => 10000.00,
        'component_earnings' => 450.75,
        'total_earnings' => 10450.75,
        'total_deductions' => 0.00,
        'gross_pay' => 10450.75,
        'net_pay' => 10450.75,
        'working_days' => 10,
        'present_days' => 10,
        'full_present_days' => 10,
        'half_days' => 0,
        'holiday_days' => 0,
        'paid_leave_days' => 0,
        'unpaid_leave_days' => 0,
        'absent_days' => 0,
        'overtime_hours' => 0.00, // old bugged default
        'overtime_amount' => 0.00, // old bugged default
        'per_day_salary' => 1000.00,
        'earnings_breakdown' => $earningsBreakdown,
        'deductions_breakdown' => [],
        'created_by' => $company->id,
    ]);

    // 5. Run the migration logic manually to test the update
    $migration = require database_path('migrations/2026_06_26_150000_backfill_payroll_entry_overtime.php');
    $migration->up();

    // 6. Assert that values have been backfilled correctly
    $freshEntry = $entry->fresh();
    expect((float)$freshEntry->overtime_hours)->toBe(3.50);
    expect((float)$freshEntry->overtime_amount)->toBe(450.75);
});