<?php

namespace App\Http\Controllers\Administracao;

use App\Enums\Administracao\HistoricoAcao;
use App\Http\Controllers\Controller;
use App\Http\Requests\Administracao\PapelRequest;
use App\Models\Administracao\Modulo;
use App\Models\Administracao\Papel;
use App\Models\Administracao\PapelPermissaoHistorico;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\DB;

class PapelController extends Controller
{
    protected $modulo = 'administracao';
    protected $funcionalidade = 'papel';

    public function datatable()
    {
        $currentLotacao = self::getCurrentLotacao();

        $papeis = DB::table('administracao_papel AS papel')
            ->select(
                'papel.id',
                'papel.nome'
            )
            ->whereNull('papel.deleted_at')
            ->when( $currentLotacao->usuario->is_administrador !== true, fn ($q) => $q
                ->whereExists(fn ($q) => $q->select(DB::raw(1))
                ->from('administracao_gestor_papel')
                ->join('administracao_gestor', 'administracao_gestor.id', 'administracao_gestor_papel.gestor_id')
                ->where('administracao_gestor.usuario_id', $currentLotacao->usuario_id)
                ->whereColumn('administracao_gestor_papel.papel_id', 'papel.id')
            ));

        return datatables()->of($papeis)->skipTotalRecords()->make(true);
    }

    public function index()
    {
        $this->auth(__FUNCTION__);

        $papeis = $this->get(Papel::class)->orderBy('nome')->get();

        return response()->json($papeis, Response::HTTP_OK);
    }

    public function create()
    {
        $this->auth(__FUNCTION__);

        return [
            'form' => $this->getFormData(),
            'model' => [
                'nome' => null,
                'permissoes' => []
            ]
        ];
    }

    public function store(PapelRequest $request)
    {
        $this->auth(__FUNCTION__);

        $papel = new Papel;
        $params = $request->all();

        DB::transaction(function () use ($papel, $params) {

            $papel->fill($params);
            $papel->save();

            $permissoes = $papel->permissoes()->sync($params['permissoes']);

            foreach ($permissoes['attached'] as $permissao) {
                PapelPermissaoHistorico::create([
                    'acao_id' => HistoricoAcao::CADASTRO,
                    'papel_id' => $papel->id,
                    'permissao_id' => $permissao,
                ]);
            }

            foreach ($permissoes['detached'] as $permissao) {
                PapelPermissaoHistorico::create([
                    'acao_id' => HistoricoAcao::EXCLUSAO,
                    'papel_id' => $papel->id,
                    'permissao_id' => $permissao,
                ]);
            }
        });

        return response()->json($papel->fresh(), Response::HTTP_CREATED);
    }

    public function show($id)
    {
        $this->auth(__FUNCTION__);

        return response()->json($this->get(Papel::class, $id), Response::HTTP_OK);
    }

    public function edit($id)
    {
        $this->auth(__FUNCTION__);

        $papel = Papel::findOrFail($id);

        return [
            'form' => $this->getFormData(),
            'model' => [
                'nome' => $papel->nome,
                'permissoes' => $papel->permissoes->pluck('id'),
            ],
        ];
    }

    public function getFormData()
    {
        $currentLotacao = self::getCurrentLotacao();

        return [
            'modulos' => Modulo::whereHas('funcionalidades')
                ->when($currentLotacao->usuario->is_administrador !== true, fn ($q) => $q
                    ->whereHas('funcionalidades.permissoes.gestores', fn ($q) => $q
                        ->where('usuario_id', $currentLotacao->usuario_id)
                    )
                )
                ->orderBy('nome')
                ->get()
                ->map(fn ($modulo) => [
                    'id' => $modulo->id,
                    'nome' => $modulo->nome,
                    'funcionalidades' => $modulo->funcionalidades()
                        ->when($currentLotacao->usuario->is_administrador !== true, fn ($q) => $q
                            ->whereHas('permissoes.gestores', fn ($q) => $q
                                ->where('usuario_id', $currentLotacao->usuario_id)
                            )
                        )
                        ->orderBy('nome')
                        ->get()
                        ->map(fn ($funcionalidade) => [
                            'id' => $funcionalidade->id,
                            'nome' => $funcionalidade->nome,
                            'permissoes' => $funcionalidade->permissoes()
                                ->when($currentLotacao->usuario->is_administrador !== true, fn ($q) => $q
                                    ->whereHas('gestores', fn ($q) => $q
                                        ->where('usuario_id', $currentLotacao->usuario_id)
                                    )
                                )
                                ->get()
                                ->map(fn ($permissao) => [
                                    'id' => $permissao->id,
                                    'nome' => $permissao->crudAcao->nome,
                                ]),
                        ]),
                ]),
        ];
    }

    public function update(PapelRequest $request, $id)
    {
        $this->auth(__FUNCTION__);

        $papel = Papel::findOrFail($id);
        $params = $request->all();

        DB::transaction(function () use ($papel, $params) {

            $papel->update($params);
            $permissoes = $papel->permissoes()->sync($params['permissoes']);

            foreach ($permissoes['attached'] as $permissao) {
                PapelPermissaoHistorico::create([
                    'acao_id' => HistoricoAcao::CADASTRO,
                    'papel_id' => $papel->id,
                    'permissao_id' => $permissao,
                ]);
            }

            foreach ($permissoes['detached'] as $permissao) {
                PapelPermissaoHistorico::create([
                    'acao_id' => HistoricoAcao::EXCLUSAO,
                    'papel_id' => $papel->id,
                    'permissao_id' => $permissao,
                ]);
            }
        });

        return response()->json($papel->fresh(), Response::HTTP_OK);
    }

    public function destroy($id)
    {
        $this->auth(__FUNCTION__);

        Papel::findOrFail($id)->delete();

        return response()->json(null, Response::HTTP_NO_CONTENT);
    }
}