<?php

namespace App\Http\Controllers\Hosting;

use App\Http\Controllers\Controller;
use App\Models\CustomerHostingOrder;
use App\Models\HostedSite;
use App\Models\HostingAccount;
use App\Models\HostingAccountMember;
use App\Models\HostingProduct;
use App\Services\Afia\AfiaService;
use App\Services\Billing\BillingClient;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

/** Afia chat for Ladill Hosting — grounded in the user's live hosting accounts. */
class AfiaController extends Controller
{
    public function chat(Request $request, AfiaService $afia): JsonResponse
    {
        $validated = $request->validate([
            'message' => ['required', 'string', 'max:2000'],
            'history' => ['nullable', 'array', 'max:20'],
            'history.*.role' => ['nullable', 'string'],
            'history.*.text' => ['nullable', 'string'],
        ]);

        if (! $afia->enabled()) {
            return response()->json(['message' => 'Afia is not available right now.'], 503);
        }

        try {
            $reply = $afia->chat(trim($validated['message']), $validated['history'] ?? [], $this->context());
        } catch (\Throwable $e) {
            report($e);

            return response()->json(['message' => 'Afia could not respond right now. Please try again.'], 502);
        }

        return response()->json(['reply' => $reply]);
    }

    /** @return array<string,mixed> */
    private function context(): array
    {
        $user = auth()->user();

        if (! $user) {
            return ['signed_in' => 'no'];
        }

        $sharedTypes = [
            HostingProduct::TYPE_SINGLE_DOMAIN,
            HostingProduct::TYPE_MULTI_DOMAIN,
            HostingProduct::TYPE_WORDPRESS,
        ];

        $sharedAccountIds = HostingAccountMember::query()
            ->where('user_id', $user->id)
            ->pluck('hosting_account_id');

        $accounts = HostingAccount::query()
            ->where(function ($query) use ($user, $sharedAccountIds) {
                $query->where('user_id', $user->id);
                if ($sharedAccountIds->isNotEmpty()) {
                    $query->orWhereIn('id', $sharedAccountIds);
                }
            })
            ->whereHas('product', fn ($q) => $q->whereIn('type', $sharedTypes))
            ->with('sites')
            ->get();

        $ctx = [
            'signed_in' => 'yes',
            'hosting_accounts_total' => $accounts->count(),
            'hosting_accounts_active' => $accounts->where('status', HostingAccount::STATUS_ACTIVE)->count(),
            'linked_domains' => HostedSite::query()
                ->whereIn('hosting_account_id', $accounts->pluck('id'))
                ->count(),
            'pending_orders' => CustomerHostingOrder::query()
                ->forUser($user->id)
                ->whereIn('status', [
                    CustomerHostingOrder::STATUS_PENDING_PAYMENT,
                    CustomerHostingOrder::STATUS_PENDING_APPROVAL,
                    CustomerHostingOrder::STATUS_APPROVED,
                    CustomerHostingOrder::STATUS_PROVISIONING,
                ])
                ->count(),
        ];

        $account = ladill_account();
        if ($account?->public_id) {
            try {
                $ctx['wallet_balance_ghs'] = number_format(app(BillingClient::class)->balanceMinor((string) $account->public_id) / 100, 2);
            } catch (\Throwable) {
            }
        }

        return $ctx;
    }
}