<?php
/*
 * Copyright (c) 2022 LatePoint LLC. All rights reserved.
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit; // Exit if accessed directly.
}


if ( ! class_exists( 'OsProcessesController' ) ) :


	class OsProcessesController extends OsController {

		function __construct() {
			parent::__construct();


			$this->views_folder            = LATEPOINT_VIEWS_ABSPATH . 'processes/';
			$this->vars['page_header']     = OsMenuHelper::get_menu_items_by_id( 'processes' );
			$this->vars['pre_page_header'] = OsMenuHelper::get_label_by_id( 'processes' );
			$this->vars['breadcrumbs'][]   = array(
				'label' => __( 'Workflows', 'latepoint' ),
				'link'  => OsRouterHelper::build_link( OsRouterHelper::build_route_name( 'processes', 'index' ) ),
			);
		}

		public function new_form() {
			$this->vars['process'] = new OsProcessModel();
			$this->set_layout( 'none' );
			$this->format_render( __FUNCTION__ );
		}

		public function reload_event_trigger_conditions() {
			$event                                = new \LatePoint\Misc\ProcessEvent( [ 'type' => $this->params['event_type'] ] );
			$trigger_conditions_form_section_html = OsProcessesHelper::trigger_conditions_html_for_event( $event );

			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => LATEPOINT_STATUS_SUCCESS,
						'message' => $trigger_conditions_form_section_html,
					) 
				);
			}
		}


		public function available_properties_for_object_code() {
			$object_code           = $this->params['object_code'];
			$properties_for_select = \LatePoint\Misc\ProcessEvent::get_properties_for_object_code( $object_code, true );
			$html                  = '';
			foreach ( $properties_for_select as $property ) {
				$html .= '<option value="' . $property['value'] . '">' . $property['label'] . '</option>';
			}
			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => LATEPOINT_STATUS_SUCCESS,
						'message' => $html,
					) 
				);
			}
		}


		public function available_operators_for_trigger_condition_property() {
			// example format: old_booking__agent_id
			$property  = $this->params['property'];
			$operators = \LatePoint\Misc\ProcessEvent::trigger_condition_operators_for_property( $property );
			$html      = '';
			foreach ( $operators as $value => $label ) {
				$html .= '<option value="' . $value . '">' . $label . '</option>';
			}
			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => LATEPOINT_STATUS_SUCCESS,
						'message' => $html,
					) 
				);
			}
		}

		public function available_values_for_trigger_condition_property() {
			$values               = [];
			$property             = $this->params['property'];
			$operator             = $this->params['operator'];
			$trigger_condition_id = $this->params['trigger_condition_id'];
			$values               = OsProcessesHelper::values_for_trigger_condition_property( $property );
			$message              = \LatePoint\Misc\ProcessEvent::value_field_html_for_trigger_condition( $property, '', $trigger_condition_id );

			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => LATEPOINT_STATUS_SUCCESS,
						'message' => $message,
					)
				);
			}
		}

		function destroy() {
			if ( filter_var( $this->params['id'], FILTER_VALIDATE_INT ) ) {
				$this->check_nonce( 'destroy_process_' . $this->params['id'] );
				$process = new OsProcessModel( $this->params['id'] );
				if ( $process->delete() ) {
					$status        = LATEPOINT_STATUS_SUCCESS;
					$response_html = __( 'Process Removed', 'latepoint' );
				} else {
					$status        = LATEPOINT_STATUS_ERROR;
					$response_html = __( 'Error Removing Workflow', 'latepoint' );
				}
			} else {
				$status        = LATEPOINT_STATUS_SUCCESS;
				$response_html = __( 'Process Removed', 'latepoint' );
			}
			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => $status,
						'message' => $response_html,
					) 
				);
			}
		}

		function save() {
			$process_data = $this->params['process'];
			if ( ! empty( $process_data['id'] ) ) {
				$this->check_nonce( 'edit_process_' . $process_data['id'] );
				$process     = new OsProcessModel( $process_data['id'] );
				$new_process = false;
			} else {
				$this->check_nonce( 'new_process' );
				$process     = new OsProcessModel();
				$new_process = true;
			}

			$process->status     = $process_data['status'] ?? 'active';
			$process->name       = $process_data['name'];
			$process->event_type = $process_data['event']['type'];
			$actions             = [];


			// check if conditions are turned ON and exist in params
			$trigger_conditions = ( isset( $process_data['event']['conditional'] ) && $process_data['event']['conditional'] == LATEPOINT_VALUE_ON && isset( $process_data['event']['trigger_conditions'] ) && ! empty( $process_data['event']['trigger_conditions'] ) ) ? $process_data['event']['trigger_conditions'] : [];
			if ( isset( $process_data['actions'] ) ) {
				$actions = OsProcessesHelper::iterate_trigger_conditions( $trigger_conditions, $process_data['actions'] );

				if ( $process_data['event']['has_time_offset'] == LATEPOINT_VALUE_ON ) {
					$actions[0]['time_offset'] = $process_data['event']['time_offset'];
				} else {
					$actions[0]['time_offset'] = [];
				}
			} else {
				$actions = [];
			}

			$process->actions_json = wp_json_encode( $actions );
			$old_process           = $process->is_new_record() ? [] : clone $process;
			if ( $process->save() ) {
				if ( ! $new_process ) {
					// remove previously created jobs for this process that hasn't run yet
					$jobs = new OsProcessJobModel();
					$jobs->delete_where(
						[
							'process_id' => $process->id,
							'status'     => LATEPOINT_JOB_STATUS_SCHEDULED,
						] 
					);
					/**
					 * Process was updated
					 *
					 * @param {OsProcessModel} $process instance of process model that was updated
					 * @param {OsProcessModel} $old_process instance of process model before it was updated
					 *
					 * @since 4.7.0
					 * @hook latepoint_process_updated
					 *
					 */
					do_action( 'latepoint_process_updated', $process, $old_process );
				} else {
					/**
					 * Process was created
					 *
					 * @param {OsProcessModel} $process instance of process model that was created
					 *
					 * @since 4.7.0
					 * @hook latepoint_process_created
					 *
					 */
					do_action( 'latepoint_process_created', $process );
				}
				$process->build_from_json();
				OsProcessJobsHelper::recreate_jobs_for_existing_records( $process );
				$message = __( 'Process Saved', 'latepoint' );
				$status  = LATEPOINT_STATUS_SUCCESS;
			} else {
				$message = __( 'Error saving process', 'latepoint' );
				$status  = LATEPOINT_STATUS_ERROR;
			}

			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => $status,
						'message' => $message,
					) 
				);
			}
		}

		function new_trigger_condition() {
			$process_event          = new \LatePoint\Misc\ProcessEvent( [ 'type' => $this->params['event_type'] ] );
			$trigger_condition_html = $process_event->generate_trigger_condition_form_html();
			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => LATEPOINT_STATUS_SUCCESS,
						'message' => $trigger_condition_html,
					) 
				);
			}
		}

		function new_action() {
			$action        = new \LatePoint\Misc\ProcessAction();
			$process_id    = ! empty( $this->params['process_id'] ) ? sanitize_text_field( $this->params['process_id'] ) : '';
			$response_html = \LatePoint\Misc\ProcessAction::generate_form( $action, $process_id );

			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => LATEPOINT_STATUS_SUCCESS,
						'message' => $response_html,
					) 
				);
			}
		}

		function load_action_settings() {
			$action = new \LatePoint\Misc\ProcessAction(
				[
					'type' => $this->params['action_type'],
					'id'   => $this->params['action_id'],
				] 
			);

			$template_id = $this->params['template_id'] ?? false;
			if ( $template_id ) {
				$action->load_settings_from_template( $template_id );
			}

			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					array(
						'status'  => LATEPOINT_STATUS_SUCCESS,
						'message' => \LatePoint\Misc\ProcessAction::generate_settings_fields( $action ),
					) 
				);
			}
		}

		function index() {
			$processes               = new OsProcessModel();
			$this->vars['processes'] = $processes->get_results_as_models();
			$this->format_render( __FUNCTION__ );
		}

		function action_test_run() {
			// Verify CSRF nonce
			$this->check_nonce( 'test_process_action' );

			$action = new \LatePoint\Misc\ProcessAction();
			$action->set_from_params( $this->params['action'] );

			$available_data_sources = $action->event->get_available_data_sources();
			foreach ( $available_data_sources as $data_source ) {
				$action->selected_data_objects[] = [
					'model' => $data_source['model'],
					'id'    => $this->params['data_source'][ $data_source['name'] ],
				];
			}

			$result = $action->run();
			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					[
						'status'  => $result['status'],
						'message' => $result['message'],
					] 
				);
			}
		}

		function test_run() {
			// Verify CSRF nonce - reuse the nonce from the process form
			if ( ! empty( $this->params['process']['id'] ) ) {
				$this->check_nonce( 'edit_process_' . $this->params['process']['id'] );
			} else {
				$this->check_nonce( 'new_process' );
			}

			$process = new OsProcessModel();
			$process->set_from_params( $this->params['process'] );

			$action_ids_to_run = isset( $this->params['action_ids'] ) ? explode( ',', $this->params['action_ids'] ) : [];
			$data_sources      = $this->params['data_source'];

			$selected_data_objects = [];
			foreach ( $data_sources as $source_id => $data_source_value ) {
				$object_data = OsProcessesHelper::get_object_data_by_source( $source_id, $data_source_value );
				if ( ! empty( $object_data ) ) {
					$selected_data_objects[] = $object_data;
				}
			}

			if ( $process->check_if_objects_satisfy_trigger_conditions( $selected_data_objects ) ) {
				foreach ( $process->actions as $action ) {
					if ( $action->status != LATEPOINT_STATUS_ACTIVE ) {
						continue;
					}
					if ( ! in_array( $action->id, $action_ids_to_run ) ) {
						continue;
					}
					$action->selected_data_objects = $selected_data_objects;
					$action->run();
				}
				$status  = LATEPOINT_STATUS_SUCCESS;
				$message = __( 'Run complete', 'latepoint' ) . '. <a href="' . OsRouterHelper::build_link( [ 'activities', 'index' ] ) . '" target="_blank">' . __( 'view logs', 'latepoint' ) . '</a>';
			} else {
				$status  = LATEPOINT_STATUS_ERROR;
				$message = __( 'Trigger conditions not met', 'latepoint' );
			}


			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					[
						'status'  => $status,
						'message' => $message,
					] 
				);
			}
		}

		function test_preview() {
			$process = new OsProcessModel();
			$process->set_from_params( $this->params['process'] );

			$action_settings_html   = '';
			$available_data_sources = $process->event->get_available_data_sources();


			foreach ( $available_data_sources as $data_source ) {
				$action_settings_html .= OsFormHelper::select_field(
					'data_source[' . $data_source['name'] . ']',
					$data_source['label'],
					$data_source['values'],
					$data_source['values']['0']['value'],
					[
						'class'      => 'process-test-data-source-selector',
						'data-route' => OsRouterHelper::build_route_name( 'processes', 'reload_action_test_preview' ),
					] 
				);
			}
			$this->vars['action_settings_html'] = $action_settings_html;
			$this->vars['process']              = $process;

			$this->format_render( __FUNCTION__ );
		}

		function action_test_preview() {
			$action = new \LatePoint\Misc\ProcessAction();
			// because this data is part of a bigger process form, we need to extract just the action params
			$action->set_from_params( reset( $this->params['process']['actions'] ) );
			$action->event          = new \LatePoint\Misc\ProcessEvent( [ 'type' => $this->params['process_event_type'] ] );
			$action_settings_html   = '';
			$available_data_sources = $action->event->get_available_data_sources();
			foreach ( $available_data_sources as $data_source ) {
				$action_settings_html           .= OsFormHelper::select_field(
					'data_source[' . $data_source['name'] . ']',
					$data_source['label'],
					$data_source['values'],
					$data_source['values']['0']['value'],
					[
						'class'      => 'process-action-test-data-source-selector',
						'data-route' => OsRouterHelper::build_route_name( 'processes', 'reload_action_test_preview' ),
					] 
				);
				$action->selected_data_objects[] = [
					'model' => $data_source['model'],
					'id'    => $data_source['values'][0]['value'],
				];
			}
			$action_settings_html .= OsFormHelper::hidden_field( 'action[type]', $action->type );
			$action_settings_html .= OsFormHelper::hidden_field( 'action[event][type]', $action->event->type );
			$action_settings_html .= OsFormHelper::get_hidden_fields_for_array( $action->settings, 'action[settings]' );
			$preview_html          = $action->generate_preview();

			$this->vars['action']               = $action;
			$this->vars['preview_html']         = $preview_html;
			$this->vars['action_settings_html'] = $action_settings_html;

			$this->format_render( __FUNCTION__ );
		}


		function reload_action_test_preview() {
			$action = new \LatePoint\Misc\ProcessAction();
			$action->set_from_params( $this->params['action'] );
			$available_data_sources = $action->event->get_available_data_sources();
			foreach ( $available_data_sources as $data_source ) {
				$action->selected_data_objects[] = [
					'model' => $data_source['model'],
					'id'    => $this->params['data_source'][ $data_source['name'] ],
				];
			}
			if ( $this->get_return_format() == 'json' ) {
				$this->send_json(
					[
						'status'  => LATEPOINT_STATUS_SUCCESS,
						'message' => $action->generate_preview(),
					] 
				);
			}
		}
	}

endif;
