| 1 |
<?php |
| 2 |
namespace ENS\Flow; |
| 3 |
|
| 4 |
use ENS\Config; |
| 5 |
use ENS\Email\EmailSender; |
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|
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/** |
| 8 |
* Class FlowManager |
| 9 |
* |
| 10 |
* @package ENS\Flow |
| 11 |
* |
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* @since 1.0.0 |
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*/ |
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class FlowManager { |
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|
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/** |
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* Handle the action. |
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* |
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* @since 1.0.0 |
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* |
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* @param string $action The name of the action. |
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* @param array $data The data associated with the action. |
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*/ |
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public function handle( $action, $data ) { |
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$prefix_for_cpt = Config::get( 'general_prefix' ) ?: ''; |
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$post_type = $prefix_for_cpt . '-flow'; |
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|
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$meta_key = '_' . $prefix_for_cpt . '_notification_flow_trigger'; |
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|
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$flows = get_posts( [ |
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'post_type' => $post_type, |
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'meta_key' => $meta_key, |
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'meta_value' => $action, |
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'post_status' => 'publish', |
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] ); |
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|
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if ( empty( $flows ) || !is_array( $flows ) ) { |
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return; |
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} |
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|
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foreach ( $flows as $flow ) { |
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if ( !isset( $flow->ID ) ) { |
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continue; |
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} |
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|
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$flow_config = get_post_meta( $flow->ID, '_' . $prefix_for_cpt . '_notification_flow_flow_config', true ); |
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|
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if ( empty( $flow_config ) || !is_array( $flow_config ) ) { |
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continue; |
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} |
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|
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$this->execute_flow( $flow_config, $data ); |
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} |
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} |
| 55 |
|
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/** |
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* Resume flow callback. |
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* |
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* @since 1.0.0 |
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* |
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* @param int $flow_id The ID of the flow. |
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* @param string $resume_time The resume time. |
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*/ |
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public function resume_flow_callback( $flow_id, $resume_time ) { |
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if ( !$flow_id || !$resume_time ) { |
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return; |
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} |
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|
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$checkpoint = $this->get_user_flow_checkpoint( $resume_time, $flow_id ); |
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if ( empty( $checkpoint ) || !is_array( $checkpoint ) ) { |
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return; |
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} |
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|
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if ( !isset( $checkpoint['resume_after'] ) || time() < $checkpoint['resume_after'] ) { |
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return; |
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} |
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|
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if ( !isset( $checkpoint['flow_snapshot'] ) || !isset( $checkpoint['hook_data'] ) ) { |
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return; |
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} |
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|
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$flow = $checkpoint['flow_snapshot']; |
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$hook_data = $checkpoint['hook_data']; |
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$resume_node = $checkpoint['resume_node'] ?? null; |
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|
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$this->execute_flow( $flow, $hook_data, $resume_node ); |
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} |
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|
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/** |
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* Execute a flow. |
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* |
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* @since 1.0.0 |
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* |
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* @param array $flow The flow data. |
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* @param array $hook_data The hook data. |
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* @param string|null $resume_from_id The node ID to resume from. |
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*/ |
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public function execute_flow( $flow, $hook_data, $resume_from_id = null ) { |
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if ( !isset( $flow['nodes'] ) || !is_array( $flow['nodes'] ) || |
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!isset( $flow['edges'] ) || !is_array( $flow['edges'] ) ) { |
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return; |
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} |
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|
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$nodes = $flow['nodes']; |
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$edges = $flow['edges']; |
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|
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// Build node map with validation |
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$node_map = []; |
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foreach ( $nodes as $node ) { |
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if ( !isset( $node['id'], $node['name'] ) ) { |
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continue; |
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} |
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$node_map[$node['id']] = $node; |
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} |
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|
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$start_node_id = $resume_from_id ?? $this->find_trigger_node( $nodes ); |
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if ( !$start_node_id || !isset( $node_map[$start_node_id] ) ) { |
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return; |
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} |
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|
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$current_node_id = $start_node_id; |
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|
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while ( $current_node_id && isset( $node_map[$current_node_id] ) ) { |
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$node = $node_map[$current_node_id]; |
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|
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switch ( $node['name'] ) { |
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case 'trigger': |
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$current_node_id = $this->get_next_node_id( $edges, $node['id'] ); |
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break; |
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|
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case 'condition': |
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if ( !isset( $node['data'] ) || !is_array( $node['data'] ) ) { |
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$current_node_id = null; |
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break; |
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} |
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|
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$field = $node['data']['field'] ?? null; |
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$operator = $node['data']['operator'] ?? null; |
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$value = $node['data']['value'] ?? null; |
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|
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$field_value = $hook_data[$field] ?? null; |
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|
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if ( $field === null || $operator === null ) { |
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$current_node_id = null; |
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break; |
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} |
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|
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$is_true = $this->compare_values( $field_value, $operator, $value ); |
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$current_node_id = $this->get_next_node_id( |
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$edges, |
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$node['id'], |
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$is_true ? 'true' : 'false' |
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); |
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break; |
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|
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case 'delay': |
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if ( !isset( $node['data'] ) || !is_array( $node['data'] ) ) { |
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$current_node_id = null; |
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break; |
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} |
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|
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$delayUnit = $node['data']['delayUnit'] ?? 'seconds'; |
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$delay = isset( $node['data']['delay'] ) ? (int) $node['data']['delay'] : 60; |
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|
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$delay_depeneds_on = $node['data']['delayCondition'] ?? null; |
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$delay_condition = 'after'; |
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$dependent_key = $delay_depeneds_on; |
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|
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if(str_contains( $delay_depeneds_on, 'before' )) { |
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$delay_condition = 'before'; |
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$dependent_key = str_replace( 'before_', '', $delay_depeneds_on ); |
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} |
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if(str_contains( $delay_depeneds_on, 'after' )) { |
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$delay_condition = 'after'; |
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$dependent_key = str_replace( 'after_', '', $delay_depeneds_on ); |
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} |
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|
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// $dependency_field = $node['data']['delayDependency'] ?? null; |
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$dependency_value = isset( $delay_depeneds_on ) ? ( $hook_data[$dependent_key] ?? current_time( 'timestamp' ) ) : current_time( 'timestamp' ); |
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// $dependency_condition = !empty( $node['data']['delayDependency'] ) ? |
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// ( $node['data']['delayCondition'] ?? 'after' ) : ''; |
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|
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$general_prefix = Config::get( 'general_prefix' ) ?: ''; |
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|
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// Calculate seconds based on unit |
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$seconds = $delay; |
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switch ( $delayUnit ) { |
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case 'minutes': |
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$seconds *= 60; |
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break; |
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case 'hours': |
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$seconds *= 60 * 60; |
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break; |
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case 'days': |
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$seconds *= 60 * 60 * 24; |
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break; |
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} |
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|
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// Calculate resume time |
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$resume_time = ( $delay_condition == 'before' ) ? |
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$dependency_value - $seconds : |
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$dependency_value + $seconds; |
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|
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$next_node_id = $this->get_next_node_id( $edges, $node['id'] ); |
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if ( !$next_node_id ) { |
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$current_node_id = null; |
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break; |
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} |
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|
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$flow_id = uniqid( 'flow_', true ); |
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|
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// Save checkpoint |
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$this->save_user_flow_checkpoint( $resume_time, $flow_id, [ |
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'resume_node' => $next_node_id, |
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'resume_after' => $resume_time, |
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'flow_snapshot' => $flow, |
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'hook_data' => $hook_data, |
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] ); |
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|
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// Schedule resume |
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wp_schedule_single_event( |
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$resume_time, |
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$general_prefix . '_resume_flow_after_delay', |
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[ |
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'flow_id' => $flow_id, |
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'resume_time' => $resume_time, |
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] |
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); |
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|
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return; // Pause execution |
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|
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case 'email': |
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if ( !isset( $node['data'] ) || !is_array( $node['data'] ) ) { |
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$current_node_id = null; |
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break; |
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} |
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|
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$receiverType = $node['data']['receiverType'] ?? null; |
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if ( $receiverType && isset( $hook_data[$receiverType] ) ) { |
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$user_email = $hook_data[$receiverType]; |
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$this->send_email_to_user( $user_email, $node['data'], $hook_data ); |
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} |
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$current_node_id = $this->get_next_node_id( $edges, $node['id'] ); |
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break; |
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|
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case 'end': |
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return; |
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|
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default: |
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$current_node_id = $this->get_next_node_id( $edges, $node['id'] ); |
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break; |
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} |
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} |
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} |
| 255 |
|
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/** |
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* Compare values with type safety. |
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* |
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* @since 1.0.0 |
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* |
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* @param mixed $left The left value. |
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* @param string $operator The operator. |
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* @param mixed $right The right value. |
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* |
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* @return bool |
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*/ |
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public function compare_values( $left, $operator, $right ) { |
| 268 |
if ( $operator === null ) { |
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return false; |
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} |
| 271 |
|
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switch ( $operator ) { |
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case 'equal':return $left == $right; |
| 274 |
case 'not_equal':return $left != $right; |
| 275 |
case 'greater_than': |
| 276 |
if ( !is_numeric( $left ) || !is_numeric( $right ) ) { |
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return false; |
| 278 |
} |
| 279 |
|
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return $left > $right; |
| 281 |
case 'less_than': |
| 282 |
if ( !is_numeric( $left ) || !is_numeric( $right ) ) { |
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return false; |
| 284 |
} |
| 285 |
|
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return $left < $right; |
| 287 |
case 'greater_equal': |
| 288 |
if ( !is_numeric( $left ) || !is_numeric( $right ) ) { |
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return false; |
| 290 |
} |
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|
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return $left >= $right; |
| 293 |
case 'less_equal': |
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if ( !is_numeric( $left ) || !is_numeric( $right ) ) { |
| 295 |
return false; |
| 296 |
} |
| 297 |
|
| 298 |
return $left <= $right; |
| 299 |
default:return false; |
| 300 |
} |
| 301 |
} |
| 302 |
|
| 303 |
/** |
| 304 |
* Find trigger node in nodes array. |
| 305 |
* |
| 306 |
* @since 1.0.0 |
| 307 |
* |
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* @param array $nodes The nodes array. |
| 309 |
* |
| 310 |
* @return string|null |
| 311 |
*/ |
| 312 |
public function find_trigger_node( $nodes ) { |
| 313 |
foreach ( $nodes as $node ) { |
| 314 |
if ( isset( $node['name'] ) && $node['name'] === 'trigger' && isset( $node['id'] ) ) { |
| 315 |
return $node['id']; |
| 316 |
} |
| 317 |
} |
| 318 |
return null; |
| 319 |
} |
| 320 |
|
| 321 |
/** |
| 322 |
* Get next node ID from edges. |
| 323 |
* |
| 324 |
* @since 1.0.0 |
| 325 |
* |
| 326 |
* @param array $edges The edges array. |
| 327 |
* @param string $from_id The source node ID. |
| 328 |
* @param string|null $label The edge label (optional). |
| 329 |
* |
| 330 |
* @return string|null |
| 331 |
*/ |
| 332 |
public function get_next_node_id( $edges, $from_id, $label = null ) { |
| 333 |
foreach ( $edges as $edge ) { |
| 334 |
if ( !isset( $edge['source'], $edge['target'] ) ) { |
| 335 |
continue; |
| 336 |
} |
| 337 |
|
| 338 |
if ( $edge['source'] === $from_id ) { |
| 339 |
if ( $label === null || ( isset( $edge['label'] ) && $edge['label'] === $label ) ) { |
| 340 |
return $edge['target']; |
| 341 |
} |
| 342 |
} |
| 343 |
} |
| 344 |
return null; |
| 345 |
} |
| 346 |
|
| 347 |
/** |
| 348 |
* Save user flow checkpoint. |
| 349 |
* |
| 350 |
* @since 1.0.0 |
| 351 |
* |
| 352 |
* @param int $resume_time The timestamp to resume at. |
| 353 |
* @param string $flow_id The flow ID. |
| 354 |
* @param array $data The checkpoint data. |
| 355 |
*/ |
| 356 |
public function save_user_flow_checkpoint( $resume_time, $flow_id, $data ) { |
| 357 |
if ( empty( $data ) || !isset( $data['resume_after'] ) ) { |
| 358 |
return; |
| 359 |
} |
| 360 |
|
| 361 |
$expiration = max( 300, $data['resume_after'] - current_time( 'timestamp' ) + 300 ); |
| 362 |
$key = sprintf( 'flow_checkpoint_%s_%s', $flow_id, $resume_time ); |
| 363 |
set_transient( $key, $data, $expiration ); |
| 364 |
} |
| 365 |
|
| 366 |
/** |
| 367 |
* Get user flow checkpoint. |
| 368 |
* |
| 369 |
* @since 1.0.0 |
| 370 |
* |
| 371 |
* @param int $resume_time The resume time. |
| 372 |
* @param string $flow_id The flow ID. |
| 373 |
* |
| 374 |
* @return array|null |
| 375 |
*/ |
| 376 |
public function get_user_flow_checkpoint( $resume_time, $flow_id ) { |
| 377 |
$key = sprintf( 'flow_checkpoint_%s_%s', $flow_id, $resume_time ); |
| 378 |
$checkpoint = get_transient( $key ); |
| 379 |
return is_array( $checkpoint ) ? $checkpoint : null; |
| 380 |
} |
| 381 |
|
| 382 |
/** |
| 383 |
* Send email to user with validation. |
| 384 |
* |
| 385 |
* @since 1.0.0 |
| 386 |
* |
| 387 |
* @param string $email The recipient email. |
| 388 |
* @param array $data The email data. |
| 389 |
* @param array $action_data The action data. |
| 390 |
*/ |
| 391 |
public function send_email_to_user( $email, $data, $action_data ) { |
| 392 |
if ( !filter_var( $email, FILTER_VALIDATE_EMAIL ) ) { |
| 393 |
return; |
| 394 |
} |
| 395 |
|
| 396 |
$subject = $data['subject'] ?? ''; |
| 397 |
$body = $data['body'] ?? ''; |
| 398 |
|
| 399 |
if ( empty( $subject ) || empty( $body ) ) { |
| 400 |
return; |
| 401 |
} |
| 402 |
|
| 403 |
$email_sender = new EmailSender( $email, $subject, $body, $action_data ); |
| 404 |
$email_sender->send(); |
| 405 |
} |
| 406 |
} |
