<?php

namespace App\Services\WebService;

use App\Exceptions\Externo\InvalidCredentialsException;
use App\Models\WebService\Permissao;
use App\Models\WebService\Usuario;
use App\Services\Service;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Hash;
use Illuminate\Validation\Rule;

class UsuarioService extends Service
{
    public static function getAuthorizationToken($request)
    {
        self::validateGetAuthorizationToken($request);

        $credentials = $request->only(['usuario', 'senha']);
        $usuario = Usuario::where('usuario', $credentials['usuario'])->first();

        if (is_null($usuario) || !Hash::check($credentials['senha'], $usuario->senha)) {

            throw new InvalidCredentialsException();
        }

        auth()->login($usuario);

        $token = auth()->claims([
            'customer' => $request->header('customer'),
        ])->refresh();

        return [
            'expiration' => time() + 60 * auth()->factory()->getTTL(),
            'token' => $token,
        ];
    }

    public static function validateGetAuthorizationToken($request)
    {
        $request->validate([
            'usuario' => [
                'required',
                'string',
            ],
            'senha' => [
                'required',
                'string',
            ],
        ]);
    }

    public static function create()
    {
        return [
            'form' => self::getFormData(),
            'model' => [
                'nome' => null,
                'usuario' => null,
                'alterou_senha' => true,
                'nova_senha' => null,
                'nova_senha_confirmacao' => null,
                'permissoes' => [],
            ],
        ];
    }

    public static function store($request)
    {
        self::validate($request);

        $usuario = new Usuario();
        $data = self::getUsuarioData($request);

        DB::transaction(function () use ($usuario, $data) {

            $usuario->fill($data);
            $usuario->save();

            $usuario->permissoes()->sync($data['permissoes']);
        });

        return $usuario->fresh();
    }

    public static function edit($id)
    {
        $usuario = Usuario::findOrFail($id);

        return [
            'form' => self::getFormData(),
            'model' => [
                'nome' => $usuario->nome,
                'usuario' => $usuario->usuario,
                'alterou_senha' => false,
                'nova_senha' => null,
                'nova_senha_confirmacao' => null,
                'permissoes' => $usuario->permissoes()->pluck('id'),
            ],
        ];
    }

    private static function getFormData()
    {
        return [
            'permissoes' => Permissao::orderBy('nome')->get(['id', 'nome']),
        ];
    }

    public static function update($request, $id)
    {
        $usuario = Usuario::findOrFail($id);

        self::validate($request);

        $data = self::getUsuarioData($request);

        DB::transaction(function () use ($usuario, $data) {

            $usuario->fill($data);
            $usuario->save();

            $usuario->permissoes()->sync($data['permissoes']);
        });

        return $usuario->fresh();
    }

    private static function getUsuarioData($request)
    {
        $data = [
            'nome' => $request->nome,
            'usuario' => $request->usuario,
            'permissoes' => $request->permissoes,
        ];

        if (is_null($request->route('id')) || $request->alterou_senha) {

            $data['senha'] = $request->nova_senha;
        }

        return $data;
    }

    public static function destroy($id)
    {
        $usuario = Usuario::findOrFail($id);

        $usuario->delete();
    }

    public static function datatable()
    {
        return DB::table('web_service_usuario AS usuario')
            ->leftJoin(
                'web_service_usuario_permissao AS usuario_permissao',
                'usuario_permissao.usuario_id',
                'usuario.id'
            )
            ->leftJoin(
                'web_service_permissao AS permissao',
                'permissao.id',
                'usuario_permissao.permissao_id'
            )
            ->select([
                'usuario.id',
                'usuario.nome',
                DB::raw("GROUP_CONCAT(permissao.nome SEPARATOR '#') AS permissoes")
            ])
            ->groupBy([
                'usuario.id',
                'usuario.nome',
            ]);
    }

    private static function validate($request)
    {
        $request->validate([
            'nome' => [
                'required',
                'string',
                'between:6,150',
            ],
            'usuario' => [
                'nullable',
                'string',
                'between:3,100',
                Rule::unique(Usuario::class, 'usuario')->ignore($request->route('id')),
            ],
            'alterou_senha' => [
                'required',
                'boolean',
            ],
            'nova_senha' => [
                'nullable',
                'required_if:alterou_senha,true',
                'min:8',
                'max:100',
                'regex:/^(?=.*\d)(?=.*[a-zA-Z]).{8,}$/',
            ],
            'permissoes' => [
                'present',
                'array',
            ],
            'permissoes.*' => [
                'required',
                'integer',
                Rule::exists(Permissao::class, 'id'),
            ]
        ]);
    }
}