<?php

namespace App\Http\Requests\Api\Contacts;

use App\Enums\Formularies\InputTypeEnum;
use App\Lib\Inputs\Definition\InputData;
use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Validation\ValidationException;
use Illuminate\Validation\Rules\Enum;

class UpsertContactsRequest extends FormRequest
{
    /**
     * Prepare the data for validation.
     *
     * @return void
     */
    protected function prepareForValidation(): void
    {
        $this->merge([
            'contacts' => \collect($this->contacts)->filter()
                ->map(function ($contact) {
                    $contact = \collect($contact);
                    if ($contact->has('data')) {
                        $contact->put('data', \collect($contact->get('data'))->all());
                        $contact->put('dataParsed', \collect($contact->get('data'))
                            ->map(function ($value, $index) {
                                return \call_user_func([$this, 'filterDataLine'], \collect($value)->all(), $index);
                            })
                            ->filter()->all());
                    }
                    if ($contact->has('visits')) {
                        $contact->put('visits', \collect($contact->get('visits'))->filter()
                            ->map(function ($visit) {
                                if (!\is_array($visit)) {
                                    return $visit;
                                }
                                $visit = \collect($visit);
                                $visit->put('note', $visit->get('note') ?? '');
                                return $visit->all();
                            })->all());
                    }
                    return $contact->all();
                })->all()
        ]);
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules(): array
    {
        return [
            'contacts'             => 'present|array',
            'contacts.*'           => 'array',
            'contacts.*.id'        => 'uuid',
            'contacts.*.lastname'  => 'nullable|string|between:1,255',
            'contacts.*.firstname' => 'nullable|string|between:1,255',
            // * Dot not validate email here (soft validate), if it does not pass, app will be blocked.
            'contacts.*.email'     => 'required|string|between:1,255',
            'contacts.*.phone'     => 'nullable|string|between:1,255',
            'contacts.*.timestamp' => 'required|date',

            // * DATA
            'contacts.*.data'                       => 'present|array',
            'contacts.*.dataParsed'                 => 'present',
            'contacts.*.data.*'                     => 'array',
            'contacts.*.data.*.title'               => 'present|string|min:1|max:255',
            'contacts.*.data.*.formSlug'            => 'present|string|min:1|max:255',
            'contacts.*.data.*.type'                => ['present', new Enum(InputTypeEnum::class)],
            'contacts.*.data.*.value'               => 'present',
            'contacts.*.data.*.required'            => 'present|boolean',
            'contacts.*.data.*.send_to_app_user_id' => 'nullable|numeric',

            'contacts.*.notes'          => 'nullable|string',
            'contacts.*.visits'         => 'present|array',
            'contacts.*.visits.*'       => 'required|array',
            'contacts.*.visits.*.title' => 'present|string',
            'contacts.*.visits.*.note'  => 'present|string',
        ];
    }

    /**
     * Handle a line of data (input)
     *
     * @param array $data
     * @param mixed $index
     * @return mixed
     * @throws \Illuminate\Validation\ValidationException In case of parse failure.
     */
    private function filterDataLine(array $data, mixed $index): mixed
    {
        $data = \collect($data);
        try {
            $title = $data->get('title') ? \strval($data->get('title')) : null;
            if (\is_null($title)) {
                throw ValidationException::withMessages([
                    'error' => "wrong title on data index '{$index}'"
                ]);
            }
            $formSlug = $data->get('formSlug') ? \strval($data->get('formSlug')) : null;
            if (\is_null($formSlug)) {
                throw ValidationException::withMessages([
                    'error' => "wrong formSlug on data index '{$index}'"
                ]);
            }
            $type = InputTypeEnum::make($data->get('type') ? $data->get('type') : null);
            if (\is_null($type)) {
                throw ValidationException::withMessages([
                    'error' => "wrong inputType on data index '{$index}'"
                ]);
            }
            $value      = $data['value'] ?? null;
            $required   = $data->get('required') ? true : false;
            $inputClass = $type->getInputClass();
            return $inputClass::from(InputData::make(
                $title,
                $formSlug,
                $type,
                $value,
                $required
            ), $required);
        } catch (\TypeError | \BadMethodCallException $e) {
            throw ValidationException::withMessages([
                'error' => "wrong type on data index '{$index}'"
            ]);
        } catch (\RuntimeException $e) {
            $message = $e->getMessage();
            throw ValidationException::withMessages([
                'error' => "wrong data on index '{$index}' '{$message}'"
            ]);
        } //end try
    }
}