<?php

/**
 * Activities plans page
 *
 * @since      1.1.0
 * @package    Activities
 * @subpackage Activities/admin
 * @author     Mikal Naustdal <miknau94@gmail.com>
 */

if ( !defined( 'WPINC' ) ) {
  die;
}

/**
 * Builds the main admin page for plans
 *
 * @return string Admin page for plans
 */
function activities_admin_plans_page() {
  if ( !current_user_can( ACTIVITIES_ADMINISTER_ACTIVITIES ) ) {
    wp_die( esc_html__( 'Access Denied', 'activities' ) );
  }

  global $wpdb;

  $current_url = ( isset( $_SERVER['HTTPS'] ) ? 'https' : 'http' ) . "://$_SERVER[HTTP_HOST]$_SERVER[REQUEST_URI]";
  $current_url = remove_query_arg( 'action', $current_url );
  $current_url = remove_query_arg( 'item_id', $current_url );
  $current_url = remove_query_arg( '_wpnonce', $current_url );

  if ( isset( $_GET['action'] ) && sanitize_key( $_GET['action'] ) == 'create' ) {
    return acts_plan_management( esc_html__( 'Create New Plan', 'activities' ), 'create' );
  }
  else if ( isset( $_GET['action'] ) && sanitize_key( $_GET['action'] == 'edit' ) && isset( $_GET['item_id'] ) ) {
    $id = acts_validate_id( $_GET['item_id'] );
    if ( $id ) {
      return acts_plan_management( esc_html__( 'Edit Plan', 'activities' ), 'edit', Activities_Plan::load( $id ) );
    }
  }
  elseif ( isset( $_POST['create_plan'] ) ) {
    if ( !wp_verify_nonce( $_POST[ACTIVITIES_PLAN_NONCE], 'activities_plan' ) ) {
      wp_die( 'Access Denied' );
    }
    $plan_map = Activities_Admin_Utility::get_plan_post_values();
    if ( $plan_map['name'] === '' ) {
      Activities_Admin::add_error_message( esc_html__( 'The plan must have a name.', 'activities' ) );
      return acts_plan_management( esc_html__( 'Create New Plan', 'activities' ), 'create', $plan_map );
    }
    if ( !Activities_Plan::exists( $plan_map['name'], 'name' ) ) {
      if ( Activities_Plan::insert( $plan_map ) ) {
        Activities_Admin::add_create_success_message( $plan_map['name'] );
      }
      else {
        Activities_Admin::add_error_message( sprintf( esc_html__( 'An error occured creating plan: %s', 'activities' ), $plan_map['name'] ) );
      }
    }
    else {
      Activities_Admin::add_error_message( sprintf( esc_html__( 'An plan with name: %s already exists.', 'activities' ), $plan_map['name'] ) );
      return acts_plan_management( esc_html__( 'Create New Plan', 'activities' ), 'create', $plan_map );
    }
  }
  elseif ( isset( $_POST['edit_plan'] ) && isset( $_POST['item_id'] ) ) {
    if ( !wp_verify_nonce( $_POST[ACTIVITIES_PLAN_NONCE], 'activities_plan' ) ) {
      wp_die( 'Access Denied' );
    }
    $plan_map = Activities_Admin_Utility::get_plan_post_values();
    if ( $plan_map['name'] != '' ) {
      $plan = new Activities_Plan( acts_validate_id( $_POST['item_id'] ) );
      if ( $plan->id === '' ) {
        Activities_Admin::add_error_message( sprintf( esc_html__( 'An error occured updating plan: %s', 'activities' ), $plan_map['name'] ) );
      }
      elseif ( $plan->name === $plan_map['name'] || !Activities_Plan::exists( $plan_map['name'], 'name' ) ) {
        if ( Activities_Plan::update( $plan_map ) !== false ) {
          Activities_Admin::add_update_success_message( stripslashes( wp_filter_nohtml_kses( $plan_map['name'] ) ) );
        }
        else {
          Activities_Admin::add_error_message( sprintf( esc_html__( 'An error occured updating plan: %s', 'activities'), $plan->name ) );
        }
      }
      else {
        Activities_Admin::add_error_message( sprintf( esc_html__( 'A plan with name %s already exists.', 'activities' ), $plan_map['name'] ) );
        $plan_map['name'] = $plan->name;
        return acts_plan_management( esc_html__( 'Edit Plan', 'activities' ), 'edit', $plan_map );
      }
    }
    else {
      Activities_Admin::add_name_error_message( esc_html__( 'Plan', 'activities' ) );

      return acts_plan_management( esc_html__( 'Edit Plan', 'activities' ), 'edit', $plan_map );
    }
  }
  else if ( isset( $_GET['action'] ) && $_GET['action'] == 'delete' && isset( $_GET['item_id'] ) ) {
    $plan = new Activities_Plan( acts_validate_id( $_GET['item_id'] ) );
    if ( $plan->id != '' ) {
      return acts_confirm_item_delete_page( esc_html__( 'Plan', 'activities' ), $plan->id, $plan->name, $current_url );
    }
  }
  else if ( isset( $_POST['confirm_deletion'] ) && isset( $_POST['item_id'] ) && isset( $_POST[ACTIVITIES_DELETE_ITEM_NONCE] ) && isset( $_POST['item_name'] ) ) {
    if ( wp_verify_nonce( $_POST[ACTIVITIES_DELETE_ITEM_NONCE], 'activities_delete_item' ) ) {
      $id = acts_validate_id( $_POST['item_id'] );
      if ( $id && Activities_Plan::delete( $id ) ) {
        Activities_Admin::add_delete_success_message( sanitize_text_field( $_POST['item_name'] ) );
      }
    }
  }
  else if ( isset( $_POST['apply_bulk'] ) && isset( $_POST['bulk'] ) && isset( $_POST['selected_activities'] ) ) {
    $action = sanitize_key( $_POST['bulk'] );
    switch ($action) {
      case 'delete_p':
        $title = esc_html__( 'Delete Plans', 'activities' );
        break;
    }
    if ( isset( $title ) && is_array( $_POST['selected_activities'] ) ) {
      $names = Activities_Admin_Utility::get_item_names( $_POST['selected_activities'], 'plan' );

      return activities_bulk_action_page( $names['ids'] , $action, $title, $names['names'] );
    }
  }
  else if ( isset( $_POST['confirm_bulk'] ) && isset( $_POST['bulk'] ) && isset( $_POST['selected_activities'] ) && isset( $_POST[ACTIVITIES_BULK_NONCE] ) ) {
    if ( wp_nonce_field( $_POST[ACTIVITIES_BULK_NONCE], 'activities_bulk_action' ) ) {
      $plans = explode( ',', sanitize_text_field( $_POST['selected_activities'] ) );
      $bulk = new Activities_Bulk_Action();
      switch (sanitize_key( $_POST['bulk'] )) {
        case 'delete_p':
          $bulk->delete_plans( $plans );
          break;
      }
    }
  }

  $output = '<h1 id="activities-title">';
	$output .= esc_html__( 'Plans', 'activities' );
  if ( current_user_can( ACTIVITIES_ADMINISTER_ACTIVITIES )) {
  	$output .= '<a href="' . esc_url( $current_url ) . '&action=create" class="add page-title-action">' . esc_html__( 'Create new plan', 'activities' ) . '</a>';
  }
	$output .= '</h1>';

  $table = new Activities_Plan_List_Table();
  $output .= $table->display();

  return $output;
}