<?php

/*
* it means someone outside wp is accessing the file, in this case kill it.
*/
if (!defined('ABSPATH')) {
	die('You can not access this file!');
}


/*
* if the acf field for transfert validation is checked,
* it means we need to validate the transfert
*
*/
function handle_transfert_validation_CIPF($user_id) {
	Plgntls::debug_infos();

	/*
	* check and reset the acf fielf for transfert
	*
	*/
	if (false === is_transfert_success_CIPF($user_id)) {
		return;
	}
	reset_acf_transfert_CIPF($user_id);

	/*
	* if the account is not in transfert state, nothing to do
	*
	*/
	if (false === is_account_waiting_transfert_CIPF($user_id)) {
		return;
	}

	/*
	* set account valid
	* create card number
	* add one year
	* change state 'commande'->'renouvellement'
	*
	*/
	set_account_valid_CIPF($user_id);
	update_card_date_expiration_CIPF($user_id);
	set_card_number_CIPF($user_id);
	set_card_renew_CIPF($user_id);
	reset_emails_reminders_choices_CIPF($user_id);
	send_emails_CIPF('transfert_success', $user_id);
}


/*
* if card expire, makes some changes
*
*/
function handle_card_expire_CIPF($user_id) {
	Plgntls::debug_infos();
	if (false === isset_acf_card_expiration_CIPF($user_id)) {
		return;
	}
	if (is_card_date_expired_CIPF($user_id)) {
		if (is_account_waiting_transfert_CIPF($user_id)) {
			set_account_waiting_invalid_CIPF($user_id);
		}
		else {
			set_account_expired_CIPF($user_id);
		}
		send_emails_CIPF('account_expired', $user_id);
	}
	else {
		if (is_account_waiting_transfert_CIPF($user_id)) {
			set_account_waiting_valid_CIPF($user_id);
		}
		else {
			set_account_valid_CIPF($user_id);
		}
		reset_emails_reminders_deletion_account_CIPF($user_id);
	}
}


/*
* this function will delete the account if the deletion date is expired
* it is called both by e scheduled event, and every time a prof go on its page
*
*/
function handle_prof_account_deletion_CIPF($user_id) {
	Plgntls::debug_infos();

	/*
	* check if account still exists
	*
	*/
	if (false === get_user_by('id', $user_id)) {
		return;
	}

	/*
	* check if account should be deleted
	*
	*/
	if (!is_prof_account_deletion_date_exceeded_CIPF($user_id)) {
		return;
	}

	send_emails_CIPF('account_deleted', $user_id);
	include_once(ABSPATH.'wp-admin/includes/user.php');
	wp_delete_user($user_id);
}


/*
* this function will check if users should be sent an email
* to remind them of their card expiration date
*
*/
function handle_reminders_before_card_expire_CIPF($user_id) {
	Plgntls::debug_infos();
	$emails_reminders = Cipf:: ACF_EMAILS_REMINDERS;

	if (!isset_acf_card_expiration_CIPF($user_id)) {
		return;
	}
	if (is_card_date_expired_CIPF($user_id)) {
		return;
	}
	$date_limit = get_card_date_expiration_CIPF($user_id);
	if (false === $date_limit) {
		return;
	}

	$is_before_reminders = true;
	$reminders_choices = get_emails_reminders_choices_CIPF($user_id);
	foreach ($reminders_choices as $reminder_key => $value) {
		$duration = get_duration_CIPF($reminder_key, 'card_expiration');
		if (false === $duration) {
			continue;
		}

		$diff = compare_diff_with_today_CIPF($date_limit, $duration);
		if ($diff > 0) {
			continue;
		}
		$is_before_reminders = false;

		if (is_email_reminder_choice_CIPF($reminder_key, $user_id)) {
			continue;
		}
		set_email_reminder_choice_CIPF($reminder_key, $user_id);
		send_emails_CIPF('card_will_expire', $user_id);
		return; // don't send multiple emails
	}

	/*
	* if didnt return, it either means that :
	* - today is before any reminder
	* - today is after all reminders
	* use 'is_before_reminders' to know
	*
	*/
	if ($is_before_reminders) {
		reset_emails_reminders_expiration_card_CIPF($user_id);
	}
}


/*
* this function will check if users should be sent an email
* to remind them of their account beeing soon deleted
*
*/
function handle_reminders_before_account_deleted_CIPF($user_id) {
	Plgntls::debug_infos();
	$duration_deletion = Cipf::DURATION_ACCOUNT_DELETE_AFTER_EXPIRE;

	if (!isset_acf_card_expiration_CIPF($user_id)) {
		return;
	}
	if (!is_card_date_expired_CIPF($user_id)) {
		reset_emails_reminders_deletion_account_CIPF($user_id);
		return;
	}
	$date_limit = get_card_date_expiration_CIPF($user_id);
	if (false === $date_limit) {
		return;
	}
	$date_deletion = $date_limit->modify($duration_deletion);


	$is_before_reminders = true;
	/*
	* get the acf reminders,
	* - continue the ones not for account deletion
	* - continue if date is not yet soon enough
	* - continue if email was already sent
	*
	*/
	$reminders_choices = get_emails_reminders_choices_CIPF($user_id);
	foreach ($reminders_choices as $reminder_key => $value) {
		$duration = get_duration_CIPF($reminder_key, 'account_deletion');
		if (false === $duration) {
			continue;
		}

		$diff = compare_diff_with_today_CIPF($date_deletion, $duration);
		if ($diff > 0) {
			continue;
		}
		$is_before_reminders = false;

		if (is_email_reminder_choice_CIPF($reminder_key, $user_id)) {
			continue;
		}
		/*
		unset_email_reminder_choice_CIPF($reminder_key, $user_id);
		*/
		set_email_reminder_choice_CIPF($reminder_key, $user_id);
		send_emails_CIPF('account_will_be_deleted', $user_id);
		return; // don't send multiple emails
	}

	/*
	* if didnt return, it either means that :
	* - today is before any reminder
	* - today is after all reminders
	* use 'is_before_reminders' to know
	*
	*/
	if ($is_before_reminders) {
		reset_emails_reminders_deletion_account_CIPF($user_id);
	}
}


/*
* extract the duration
* returns false if not for the right type
*
*/
function get_duration_CIPF($reminder, $type) {
	Plgntls::debug_infos();

	$explode_reminder = explode('/', $reminder);
	$explode_reminder = array_map('trim', $explode_reminder);
	if ($explode_reminder[0] !== $type) {
		return false;
	}
	$duration = $explode_reminder[1];
	return $duration;
}


/*
* find the diffs :
* - the intended diff between the deletion date and the reminder
* - the diff between the deletion date and today
* and return the difference
*
*/
function compare_diff_with_today_CIPF($date, $duration) {
	Plgntls::debug_infos();

	$date_reminder = $date->modify($duration);
	$date_diff = date_diff($date, $date_reminder);
	$date_diff = (int)$date_diff->format('%R%a');

	$date_now = date_create('now');
	$current_date_diff = date_diff($date, $date_now);
	$current_date_diff = (int)$current_date_diff->format('%R%a');

	return ($date_diff - $current_date_diff);
}


?>