<?php

namespace App\Http\Controllers\Club;

use App\Enums\NotificationType;
use App\Events\NewNotification;
use App\Http\Controllers\Controller;
use App\Http\Requests\Club\Messages\BlockCustomerRequest;
use App\Http\Requests\Club\Messages\DeleteMessagesRequest;
use App\Http\Requests\Club\Messages\MarkAsReadRequest;
use App\Http\Requests\Club\Messages\SendMessageRequest;
use App\Lib\Helpers\ToolboxHelper;
use App\Models\BlockList;
use App\Models\Customer;
use App\Models\Message;
use App\Models\Notifications;
use Illuminate\Contracts\Database\Eloquent\Builder;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Lottery;

class MessageController extends Controller
{
    /**
     * Show messagerie
     *
     * @return \Illuminate\Contracts\View\View|\Illuminate\Contracts\View\Factory
     */
    public function index()
    {
        return view('club.pages.messages.index');
    }

    /**
     * Fetch conversations and block list
     *
     * @return \Illuminate\Http\JsonResponse
     */
    public function conversations(): JsonResponse
    {
        /** How many message to keey in a conversation */
        $messagesToKeepInConversations = 25;
        /** @var \App\Models\Customer */
        $customer      = Auth::guard('club')->user();
        $conversations = $customer->conversations();
        $ids           = collect($conversations)->pluck('to_id');
        $block_list    = BlockList::query()
            ->whereHas('customer', fn (Builder $q) => $q->where('id', $customer->id))
            ->orWhereHas('blocked', fn (Builder $q) => $q->where('id', $customer->id))
            ->get();

        // * Sort In reverse order messages
        $conversations = collect($conversations)
            ->map(function (array $conversation) use ($messagesToKeepInConversations) {
                $sortFn = fn (Message $a, Message $b) => $a->created_at->timestamp < $b->created_at->timestamp;
                // * Limit messages per conversations
                Lottery::odds(1, 20)
                    ->winner(fn () => collect($conversation['messages'])
                        // @phpstan-ignore-next-line
                        ->sort($sortFn)->splice($messagesToKeepInConversations)
                        ->each(fn (Message $message) => $message->delete()))
                    ->choose();
                return $conversation;
            })->all();
        // * Notifications
        $notifications = Notifications::query()
            ->whereHas('customer', fn (Builder $q) => $q->where('id', $customer->id))
            ->where('notifiable_type', Message::class)
            ->pluck('notifiable_id', 'id');
        return response()->json(compact('conversations', 'block_list', 'notifications'));
    }

    /**
     * Send a message to a user
     *
     * @param \App\Http\Requests\Club\Messages\SendMessageRequest $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function send(SendMessageRequest $request): JsonResponse
    {
        /** @var \App\Models\Customer */
        $customer = Auth::guard('club')->user();
        /** @var \App\Models\Customer */
        $toCustomer = Customer::query()->where('username', $request->input('to'))->firstOrFail();
        $message    = new Message($request->only('message'));
        $message->fromCustomer()->associate($customer);
        $message->toCustomer()->associate($toCustomer);
        $message->message = ToolboxHelper::censorString($message->message);
        $message->saveOrFail();
        event(new NewNotification(
            NotificationType::message,
            route('club.messages.index', ['m' => $message->id]),
            $message,
            $toCustomer
        ));
        return response()->json($message->load(['toCustomer' => function (Builder $q) {
            $q->select(['id', 'username', 'created_at']);
        }, 'fromCustomer' => function (Builder $q) {
            $q->select(['id', 'username', 'created_at']);
        }]));
    }

    /**
     * Destroy a message
     *
     * @param \App\Http\Requests\Club\Messages\DeleteMessagesRequest $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function delete(DeleteMessagesRequest $request): JsonResponse
    {
        return DB::transaction(function () use ($request) {
            /** @var \App\Models\Customer */
            $customer      = Auth::guard('club')->user();
            $message       = Message::findOrFail($request->input('message'));
            $conversations = $customer->conversations();
            foreach ($conversations as $conversation) {
                $conversation = (object)$conversation;
                if ($conversation->id != $message->id) {
                    continue;
                }
                /** @var \App\Models\Message $message */
                foreach ($conversation->messages as $message) {
                    if ($message->from == $customer->id) {
                        $message->hide_from = true;
                    }
                    if ($message->to == $customer->id) {
                        $message->hide_to = true;
                    }
                    if ($message->hide_to && $message->hide_from) {
                        $message->delete();
                    } else {
                        $message->saveOrFail();
                    }
                }
            }
            return response()->json();
        });
    }

    /**
     * Block a customer to prevent him sending messages
     *
     * @param \App\Http\Requests\Club\Messages\BlockCustomerRequest $request
     * @param boolean                                               $status
     * @return \Illuminate\Http\JsonResponse
     */
    public function toggleBlock(BlockCustomerRequest $request, bool $status): JsonResponse
    {
        /** @var \App\Models\Customer */
        $customer = Auth::guard('club')->user();
        /** @var \App\Models\Customer */
        $customerToBlock = Customer::query()->where('username', $request->input('username'))->firstOrFail();
        $blockCustomer   = BlockList::firstOrNew([
            'customer_id' => $customer->id,
            'blocked_id' => $customerToBlock->id,
        ]);
        if ($status) {
            $blockCustomer->saveOrFail();
        } else {
            $blockCustomer->deleteOrFail();
        }
        return response()->json($blockCustomer);
    }

    /**
     *  Mark notificaiton as read
     *
     * @param \App\Http\Requests\Club\Messages\MarkAsReadRequest $request
     * @return \Illuminate\Http\JsonResponse
     */
    public function notificationsRead(MarkAsReadRequest $request): JsonResponse
    {
        /** @var \App\Models\Customer */
        $customer = Auth::guard('club')->user();
        Notifications::query()
            ->where('notifiable_type', Message::class)
            ->whereIn('id', $request->input('messageList'))
            ->whereHas('customer', fn (Builder $q) => $q->where('id', $customer->id))
            ->delete();
        return response()->json([]);
    }
}