<?php

namespace App\Http\Controllers\Transfer;

use App\Http\Controllers\Controller;
use App\Models\Transfer;
use App\Models\TransferDownloadEvent;
use App\Services\Billing\BillingClient;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Illuminate\View\View;
use Throwable;

class OverviewController extends Controller
{
    public function __construct(private BillingClient $billing) {}

    public function index(Request $request): View
    {
        $account = ladill_account();

        $transfers = Transfer::query()
            ->where('user_id', $account->id)
            ->where('status', Transfer::STATUS_ACTIVE);

        $activeCount = (clone $transfers)->count();
        $storageBytes = (int) (clone $transfers)->sum('storage_bytes');

        $transferIds = Transfer::query()
            ->where('user_id', $account->id)
            ->pluck('id');

        $downloads30d = TransferDownloadEvent::query()
            ->whereIn('transfer_id', $transferIds)
            ->where('downloaded_at', '>=', now()->subDays(30))
            ->count();

        $expiringSoon = Transfer::query()
            ->where('user_id', $account->id)
            ->where('status', Transfer::STATUS_ACTIVE)
            ->whereNotNull('expires_at')
            ->whereBetween('expires_at', [now(), now()->addDays(7)])
            ->count();

        $recentTransfers = Transfer::query()
            ->where('user_id', $account->id)
            ->where('status', Transfer::STATUS_ACTIVE)
            ->with('qrCode')
            ->latest()
            ->limit(6)
            ->get();

        $balanceMinor = 0;
        try {
            $balanceMinor = $this->billing->balanceMinor($account->public_id);
        } catch (Throwable $e) {
            Log::warning('Transfer dashboard could not load wallet balance', [
                'user' => $account->public_id,
                'error' => $e->getMessage(),
            ]);
        }

        $storageGb = round($storageBytes / (1024 * 1024 * 1024), 2);
        $monthlyEstimateGhs = round($storageGb * (float) config('transfer.price_per_gb_month', 0.30), 2);

        return view('transfer.dashboard', [
            'activeCount' => $activeCount,
            'storageBytes' => $storageBytes,
            'storageGb' => $storageGb,
            'downloads30d' => $downloads30d,
            'expiringSoon' => $expiringSoon,
            'recentTransfers' => $recentTransfers,
            'balanceMinor' => $balanceMinor,
            'monthlyEstimateGhs' => $monthlyEstimateGhs,
        ]);
    }
}