<?php

namespace App\Services\Infrastructure;

use App\Models\EmailServer;
use App\Models\HostingAccount;
use App\Models\HostingNode;
use App\Models\Mailbox;
use App\Models\User;
use Illuminate\Support\Collection;

class InfrastructureUsageReportService
{
    /**
     * @return Collection<int, HostingAccount>
     */
    public function sharedHostingAccountsForNode(HostingNode $node): Collection
    {
        return HostingAccount::query()
            ->where('hosting_node_id', $node->id)
            ->where('type', HostingAccount::TYPE_SHARED)
            ->with(['user:id,name,email', 'product:id,name'])
            ->orderByDesc('disk_used_bytes')
            ->get();
    }

    /**
     * @return Collection<int, object{
     *     user_id: int,
     *     name: string|null,
     *     email: string|null,
     *     mailbox_count: int,
     *     allocated_storage_mb: int,
     *     used_storage_mb: int
     * }>
     */
    public function mailStorageByUserForServer(EmailServer $server): Collection
    {
        $memberIds = app(\App\Services\Mail\EmailServerPoolService::class)
            ->poolMembers($server->poolRoot())
            ->pluck('id');

        $rows = Mailbox::query()
            ->selectRaw('mailboxes.user_id')
            ->selectRaw('COUNT(mailboxes.id) as mailbox_count')
            ->selectRaw('COALESCE(SUM(mailboxes.quota_mb), 0) as allocated_storage_mb')
            ->selectRaw('COALESCE(SUM(mailboxes.disk_used_bytes), 0) as used_storage_bytes')
            ->where(function ($query) use ($memberIds) {
                $query->whereHas('emailDomain', fn ($q) => $q->whereIn('email_server_id', $memberIds))
                    ->orWhereHas('domain', fn ($q) => $q->whereIn('email_server_id', $memberIds));
            })
            ->groupBy('mailboxes.user_id')
            ->orderByDesc('used_storage_bytes')
            ->get();

        $users = User::query()
            ->whereIn('id', $rows->pluck('user_id')->filter())
            ->get()
            ->keyBy('id');

        return $rows->map(function ($row) use ($users) {
            $user = $users->get($row->user_id);

            return (object) [
                'user_id' => (int) $row->user_id,
                'name' => $user?->name,
                'email' => $user?->email,
                'mailbox_count' => (int) $row->mailbox_count,
                'allocated_storage_mb' => (int) $row->allocated_storage_mb,
                'used_storage_mb' => (int) ceil(((int) $row->used_storage_bytes) / 1048576),
            ];
        });
    }
}