<?php

namespace Slack\Interactive;

use Illuminate\Support\Arr;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Log;
use Slack\Message;
use Slack\Models\Team;
use Slack\Blockkit\Modal;

/**
 * Incoming modal view submission event.
 *
 * @package Slack\Interactive
 */
class ViewSubmission extends Base
{
	protected const LOGKEY = 'IVS';

	// View Submissions must respond with via a trigger or inline
	public $respondNow = TRUE;

	public function __get($key)
	{
		switch ($key) {
			case 'callback_id':
				return object_get($this->_data,'view.'.$key);

			case 'meta':
				return object_get($this->_data,'view.private_metadata');

			case 'view_id':
				return object_get($this->_data,'view.id');

			default:
				return parent::__get($key);
		}
	}

	/**
	 * This method should be overridden by a local implementation
	 *
	 * @return Message
	 */
	public function respond(): Modal
	{
		// Do some magic with event data
		Log::info(sprintf('%s:View Submission for Callback [%s] User [%s] in [%s]',self::LOGKEY,$this->callback_id,$this->user_id,$this->team_id),['m'=>__METHOD__]);

		$action = NULL;
		$id = NULL;

		if (preg_match('/^(.*)\|([0-9]+)/',$this->callback_id)) {
			[$action,$cid] = explode('|',$this->callback_id,2);

		} elseif (preg_match('/^[a-z_]+$/',$this->callback_id)) {
			$action = $this->callback_id;

		} else {
			// If we get here, its an action that we dont know about.
			Log::notice(sprintf('%s:Unhandled CALLBACK [%s]',static::LOGKEY,$this->callback_id),['m'=>__METHOD__]);
		}

		switch ($action) {
			default:
				Log::notice(sprintf('%s:Unhandled ACTION [%s]',self::LOGKEY,$action),['m'=>__METHOD__]);
		}

		return new Modal(new Team);
	}

	protected function blocks(): Collection
	{
		$result = collect();

		foreach (object_get($this->_data,'view.blocks',[]) as $id=>$block) {
			switch (object_get($block,'type')) {
				case 'input':
					$result->put($block->element->action_id,$block->block_id);
					break;

				case 'section':
					$result->put($block->block_id,$id);
					break;
			}
		}

		return $result;
	}

	public function value(string $block_id): ?string
	{
		$key = Arr::get($this->blocks(),$block_id);

		// Return the state value, or the original block value
		return object_get($this->_data,'view.state.values.'.$key.'.'.$block_id.'.value') ?: object_get(Arr::get(object_get($this->_data,'view.blocks'),$key),'text.text','');
	}
}