<?php

namespace Database\Seeders;

use App\Models\Avoir;
use App\Models\Invoice;
use Illuminate\Database\Seeder;

class AvoirSeeder extends Seeder
{
    private const REASON_TYPES = [
        'remboursement_total',
        'remboursement_partiel',
        'reduction',
        'erreur_facturation',
        'retour_marchandise',
        'accord_commercial',
        'autre',
    ];

    public function run(): void
    {
        // Pick paid/emitted invoices to credit
        $invoices = Invoice::whereIn('status', ['payee', 'emise', 'envoyee'])
            ->orderByRaw('RAND()')
            ->limit(22)
            ->get();

        if ($invoices->isEmpty()) {
            $this->command->warn('AvoirSeeder: aucune facture éligible trouvée — skip.');
            return;
        }

        // Status pool: mostly emis / some applique
        $statusPool = array_merge(
            array_fill(0, 13, 'emis'),
            array_fill(0, 9,  'applique')
        );
        shuffle($statusPool);

        foreach ($invoices as $idx => $invoice) {
            $reason    = self::REASON_TYPES[array_rand(self::REASON_TYPES)];
            $status    = $statusPool[$idx % count($statusPool)];
            $avoirDate = $invoice->invoice_date
                ->copy()
                ->addDays(rand(5, 60))
                ->format('Y-m-d');

            // Partial or total credit
            $fraction = ($reason === 'remboursement_total') ? 1.0 : round(rand(20, 80) / 100, 2);
            $totalHt  = round((float) $invoice->total_ht * $fraction, 2);
            $totalTva = round($totalHt * 0.20, 2);
            $totalTtc = round($totalHt + $totalTva, 2);

            Avoir::create([
                'client_id'          => $invoice->client_id,
                'invoice_id'         => $invoice->id,
                'status'             => $status,
                'avoir_date'         => $avoirDate,
                'currency'           => 'EUR',
                'total_ht'           => $totalHt,
                'total_tva'          => $totalTva,
                'total_ttc'          => $totalTtc,
                'reason_type'        => $reason,
                'reason_description' => null,
                'refund_status'      => 'non_rembourse',
            ]);
        }

        $this->command->info('AvoirSeeder: ' . $invoices->count() . ' avoirs créés.');
    }
}