<?php

namespace Database\Seeders;

use App\Enums\SalaryAdjustmentType;
use App\Models\Payroll;
use App\Models\PayrollAdjustment;
use App\Models\User;
use Carbon\Carbon;
use Illuminate\Database\Seeder;

class PayrollSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        $users = User::all();

        if ($users->isEmpty()) {
            $users = User::factory(5)->create();
        }

        // Generate payroll for the last 6 months
        $months = collect(range(0, 5))->map(function ($i) {
            return Carbon::now()->subMonths($i)->format('Y-m');
        });

        $currentMonth = Carbon::now()->format('Y-m');

        foreach ($users as $user) {
            foreach ($months as $month) {
                if (Payroll::where('user_id', $user->id)->where('period_month', $month)->exists()) {
                    continue;
                }

                $payroll = Payroll::factory()->create([
                    'user_id' => $user->id,
                    'period_month' => $month,
                    'is_paid' => $month !== $currentMonth,
                ]);

                PayrollAdjustment::factory(rand(1, 3))->create([
                    'payroll_id' => $payroll->id,
                ]);

                $bonus = $payroll->adjustments()->where('type', SalaryAdjustmentType::BONUS)->sum('amount');
                $deduction = $payroll->adjustments()->where('type', SalaryAdjustmentType::DEDUCTION)->sum('amount');

                $payroll->update([
                    'bonus' => $bonus,
                    'deduction' => $deduction,
                    'total_salary' => $payroll->base_salary + $bonus - $deduction,
                ]);
            }
        }
    }
}