<?php

namespace App\Http\Controllers;

use OneSignal;
use App\Models\Suppliers;
use App\Models\ContractComment;
use App\Models\CurrentContracts;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Validator;

class ContractCommentController extends Controller
{
    public function index(Request $request, $id)
    {
        $contract = CurrentContracts::with(['user', 'suppliers.user', 'categories', 'status'])->find($id);

        if (!$contract) {
            abort(404);
        }

        $comments = ContractComment::with('user')
            ->where('contract_id', $id)
            ->orderBy('created_at', 'asc')
            ->paginate(50);

        return view('currentcontracts.comments', compact('comments', 'contract'));
    }

    public function store(Request $request, $id)
    {
        $validator = Validator::make($request->all(), [
            'comment' => 'required|string',
        ]);

        if ($validator->fails()) {
            if ($request->expectsJson()) {
                return response()->json($validator->errors(), 422);
            }
            return redirect()->back()->withErrors($validator);
        }

        $contract = CurrentContracts::find($id);

        if (!$contract) {
            if ($request->expectsJson()) {
                return response()->json(['message' => 'Contrato no encontrado'], 404);
            }
            abort(404);
        }

        $comment              = new ContractComment();
        $comment->contract_id = $id;
        $comment->user_id     = Auth::id();
        $comment->comment     = strip_tags($request->comment);
        $comment->save();

        $supplier    = Suppliers::find($contract->supplier_id);
        $isClient    = Auth::id() === $contract->user_id;
        $recipientId = $isClient ? ($supplier->user_id ?? null) : $contract->user_id;

        if ($recipientId) {
            try {
                OneSignal::sendNotificationCustom([
                    'include_external_user_ids' => [(string) $recipientId],
                    'contents' => [
                        'es' => Auth::user()->name . ': ' . $comment->comment,
                        'en' => Auth::user()->name . ': ' . $comment->comment,
                    ],
                    'headings' => [
                        'es' => 'Nuevo mensaje en tu contrato',
                        'en' => 'New message on your contract',
                    ],
                ]);
            } catch (\Exception $e) {}
        }

        if ($request->expectsJson()) {
            return response()->json([
                'id'         => $comment->id,
                'sender_id'  => Auth::id(),
                'sender_name'=> Auth::user()->name,
                'comment'    => $comment->comment,
                'created_at' => $comment->created_at,
            ], 201);
        }

        return redirect()->back();
    }

    public function apiIndex(Request $request, $id)
    {
        $user     = Auth::user();
        $contract = CurrentContracts::with('suppliers')->find($id);

        if (!$contract) {
            return response()->json(['message' => 'Contrato no encontrado'], 404);
        }

        $supplier       = Suppliers::find($contract->supplier_id);
        $supplierUserId = $supplier->user_id ?? null;

        if ($user->id !== $contract->user_id && $user->id !== $supplierUserId) {
            return response()->json(['message' => 'No autorizado'], 403);
        }

        $comments = ContractComment::with('user')
            ->where('contract_id', $id)
            ->orderBy('created_at', 'asc')
            ->get()
            ->map(function ($c) use ($contract, $supplierUserId) {
                $isSupplier = $c->user_id === $supplierUserId;
                return [
                    'id'          => $c->id,
                    'sender_id'   => $c->user_id,
                    'sender_name' => $c->user->name ?? null,
                    'role_id'     => $c->user->role_id ?? null,
                    'comment'     => $c->comment,
                    'created_at'  => $c->created_at,
                ];
            });

        return response()->json($comments);
    }

    public function destroy($id, $comment_id)
    {
        ContractComment::destroy($comment_id);
        return redirect('currentcontracts/' . $id . '/comments');
    }
}