<?php

namespace App\Services\Mailbox;

use Illuminate\Support\Facades\Http;

/**
 * Client for the platform Mailbox API (§4). Mail provisioning (Postfix/Dovecot
 * via the mail DB + pools) stays on the platform; the Email app creates/manages
 * mailboxes through here. Mailboxes are scoped to the user (public_id).
 * Summary: {id, address, local_part, domain, quota_mb, status, is_paid, ...}.
 */
class MailboxClient
{
    private function base(): string
    {
        return rtrim((string) config('mailbox.api_url'), '/');
    }

    private function http()
    {
        return Http::withToken((string) (config('mailbox.api_key') ?? ''))->acceptJson()->timeout(15);
    }

    /** All mailboxes for the user (optionally scoped to one email domain). */
    public function forUser(string $publicId, ?int $emailDomainId = null): array
    {
        $q = ['user' => $publicId];
        if ($emailDomainId) {
            $q['email_domain_id'] = $emailDomainId;
        }

        return $this->data($this->http()->get($this->base(), $q));
    }

    public function show(string $publicId, int $id): array
    {
        return $this->data($this->http()->get($this->base().'/'.$id, ['user' => $publicId]));
    }

    /**
     * Create a mailbox. The Email app does its own wallet billing (§4-A) before
     * calling and passes is_paid + payment_reference. Returns the mailbox detail.
     */
    public function create(string $publicId, int $emailDomainId, string $localPart, string $displayName, string $password, ?int $quotaMb = null, bool $isPaid = false, ?string $paymentReference = null): array
    {
        $res = $this->http()->post($this->base(), array_filter([
            'user' => $publicId,
            'email_domain_id' => $emailDomainId,
            'local_part' => $localPart,
            'display_name' => $displayName,
            'password' => $password,
            'quota_mb' => $quotaMb,
            'is_paid' => $isPaid,
            'payment_reference' => $paymentReference,
        ], fn ($v) => $v !== null));
        $res->throw();

        return (array) $res->json('data');
    }

    public function resetPassword(string $publicId, int $id, string $password): array
    {
        $res = $this->http()->patch($this->base().'/'.$id.'/password', ['user' => $publicId, 'password' => $password]);
        $res->throw();

        return (array) $res->json('data');
    }

    /** Change a mailbox's storage plan (quota). Billing is done before this call. */
    public function updateQuota(string $publicId, int $id, int $quotaMb, bool $isPaid = false, ?string $paymentReference = null): array
    {
        $res = $this->http()->patch($this->base().'/'.$id.'/quota', array_filter([
            'user' => $publicId,
            'quota_mb' => $quotaMb,
            'is_paid' => $isPaid,
            'payment_reference' => $paymentReference,
        ], fn ($v) => $v !== null));
        $res->throw();

        return (array) $res->json('data');
    }

    public function delete(string $publicId, int $id): void
    {
        $this->http()->delete($this->base().'/'.$id, ['user' => $publicId])->throw();
    }

    private function data($res): array
    {
        $res->throw();

        return (array) ($res->json('data') ?? $res->json());
    }
}