<?php

class SearchFiltersPlugin extends \RainLoop\Plugins\AbstractPlugin
{
	public const
		NAME = 'Search Filters',
		VERSION = '0.0.2',
		RELEASE = '2024-06-28',
		REQUIRED = '2.36.3',
		CATEGORY = 'General',
		LICENSE = 'MIT',
		DESCRIPTION = 'Add filters to search queries';

	public function Init(): void
	{
		$this->UseLangs(true);

		$this->addHook('imap.after-login', 'ApplyFilters');

		$this->addTemplate('templates/STabSearchFilters.html');

		$this->addTemplate('templates/PopupsSearchFilters.html');
		$this->addTemplate('templates/PopupsSTabAdvancedSearch.html');
		$this->addJs('js/SearchFilters.js');

		$this->addJsonHook('SGetFilters', 'GetFilters');
		$this->addJsonHook('SAddEditFilter', 'AddEditFilter');
		$this->addJsonHook('SUpdateSearchQ', 'UpdateSearchQ');
		$this->addJsonHook('SDeleteFilter', 'DeleteFilter');
	}

	public function ApplyFilters(
		\RainLoop\Model\Account $oAccount,
		\MailSo\Imap\ImapClient $oImapClient,
		bool $bSuccess,
		\MailSo\Imap\Settings $oSettings
	) {
		if (!$bSuccess) {
			return;
		}

		$aSettings = $this->getUserSettings();
		if (empty($aSettings['SFilters'])) {
			$aSettings['SFilters'] = [];
			$this->saveUserSettings($aSettings);
			return;
		}

		$Filters = $aSettings['SFilters'];

		foreach ($Filters as $filter) {
			$this->Manager()->logWrite(json_encode([
				'filter' => $filter,
			]), LOG_WARNING);

			$folder = 'INBOX';
			$searchQ = $filter['searchQ'];
			$uids = $this->searchMessages($oImapClient, $searchQ, "INBOX");

			//Mark as read/seen
			if ($filter['fSeen']) {
				foreach ($uids as $uid) {
					$oRange = new MailSo\Imap\SequenceSet([$uid]);
					$this->Manager()->Actions()->MailClient()->MessageSetFlag(
						$folder,
						$oRange,
						MailSo\Imap\Enumerations\MessageFlag::SEEN
					);
				}
			}

			//Flag/Star message
			if ($filter['fFlag']) {
				foreach ($uids as $uid) {
					$oRange = new MailSo\Imap\SequenceSet([$uid]);
					$this->Manager()->Actions()->MailClient()->MessageSetFlag(
						$folder,
						$oRange,
						MailSo\Imap\Enumerations\MessageFlag::FLAGGED
					);
				}
			}

			// Move to folder
			if ($filter['fFolder']) {
				$folder = $filter['fFolder'];
				foreach ($uids as $uid) {
					$oRange = new MailSo\Imap\SequenceSet([$uid]);
					$oImapClient->MessageMove("INBOX", $folder, $oRange);
				}
			}
		}
	}

	private function searchMessages(
		\MailSo\Imap\ImapClient $imapClient,
		string $search,
		string $folder = "INBOX"
	): array {
		$oParams = new \MailSo\Mail\MessageListParams();
		$oParams->sSearch = $search;
		$oParams->sFolderName = $folder;

		$bUseCache = false;
		$oSearchCriterias = \MailSo\Imap\SearchCriterias::fromString(
			$imapClient,
			$folder,
			$search,
			true,
			$bUseCache
		);

		$imapClient->FolderSelect($folder);
		return $imapClient->MessageSearch($oSearchCriterias, true);
	}

	public function GetFilters()
	{
		$aSettings = $this->getUserSettings();
		$Filters = $aSettings['SFilters'] ?? [];

		$Search = $this->jsonParam('SSearchQ');
		if (!$Search) {
			return $this->jsonResponse(__FUNCTION__, ['SFilters' => $Filters]);
		}

		$Filter = null;
		foreach ($aSettings['SFilters'] as $filter) {
			if ($filter['searchQ'] == $Search) {
				$Filter = $filter;
			}
		}

		return $this->jsonResponse(__FUNCTION__, ['SFilter' => $Filter]);
	}

	public function AddEditFilter()
	{
		$SFilter = $this->jsonParam('SFilter');
		$newFilter = [
			'searchQ' => $SFilter['searchQ'],
			'priority' => $SFilter['priority'] ?? 1,
			'fFolder' => $SFilter['fFolder'],
			'fSeen' => $SFilter['fSeen'],
			'fFlag' => $SFilter['fFlag'],
		];

		$aSettings = $this->getUserSettings();
		$aSettings['SFilters'] = $aSettings['SFilters'] ?? [];

		$foundIndex = null;
		foreach ($aSettings['SFilters'] as $index => $filter) {
			if ($filter['searchQ'] == $SFilter['searchQ']) {
				if ($filter['priority'] != $SFilter['priority']) {
					array_splice($aSettings['SFilters'], $index, 1);
				} else {
					$foundIndex = $index;
				}
			}
		}

		if ($foundIndex === null) {
			$insertIndex = 0;
			foreach ($aSettings['SFilters'] as $index => $filter)
				if ($filter['priority'] >= $newFilter['priority'])
					$insertIndex = $index + 1;
				else
					break;

			array_splice($aSettings['SFilters'], $insertIndex, 0, [$newFilter]);
		} else {
			$aSettings['SFilters'][$foundIndex] = $newFilter;
		}

		return $this->jsonResponse(__FUNCTION__, $this->saveUserSettings($aSettings));
	}

	public function UpdateSearchQ()
	{
		$SFilter = $this->jsonParam('SFilter');

		$aSettings = $this->getUserSettings();
		$aSettings['SFilters'] = $aSettings['SFilters'] ?? [];

		foreach ($aSettings['SFilters'] as $index => $filter) {
			if ($filter['searchQ'] == $SFilter['oldSearchQ']) {
				$filter['searchQ'] = $SFilter['searchQ'];
				$aSettings['SFilters'][$index] = $filter;
				break;
			}
		}

		return $this->jsonResponse(__FUNCTION__, $this->saveUserSettings($aSettings));
	}

	public function DeleteFilter()
	{
		$Search = $this->jsonParam('SSearchQ');

		$aSettings = $this->getUserSettings();
		$aSettings['SFilters'] = $aSettings['SFilters'] ?? [];

		foreach ($aSettings['SFilters'] as $index => $filter) {
			if ($filter['searchQ'] == $Search) {
				array_splice($aSettings['SFilters'], $index, 1);
			}
		}

		return $this->jsonResponse(__FUNCTION__, $this->saveUserSettings($aSettings));
	}
}