<?php

function voicemail_get_config($engine) {
	$modulename = 'voicemail';
	
	// This generates the dialplan
	global $ext;  
	switch($engine) {
		case "asterisk":
			if (is_array($featurelist = featurecodes_getModuleFeatures($modulename))) {
				foreach($featurelist as $item) {
					$featurename = $item['featurename'];
					$fname = $modulename.'_'.$featurename;
					if (function_exists($fname)) {
						$fcc = new featurecode($modulename, $featurename);
						$fc = $fcc->getCodeActive();
						unset($fcc);
						
						if ($fc != '')
							$fname($fc);
					} else {
						$ext->add('from-internal-additional', 'debug', '', new ext_noop($modulename.": No func $fname"));
						var_dump($item);
					}	
				}
			}
		break;
	}
}

function voicemail_myvoicemail($c) {
	global $ext;
	global $core_conf;

	$id = "app-vmmain"; // The context to be included

	$ext->addInclude('from-internal-additional', $id); // Add the include from from-internal

	$ext->add($id, $c, '', new ext_answer('')); // $cmd,1,Answer
	$ext->add($id, $c, '', new ext_wait('1')); // $cmd,n,Wait(1)
	$ext->add($id, $c, '', new ext_macro('user-callerid')); // $cmd,n,Macro(user-callerid)
	$ext->add($id, $c, '', new ext_macro('get-vmcontext','${AMPUSER}')); 
	$ext->add($id, $c, 'check', new ext_vmexists('${AMPUSER}@${VMCONTEXT}')); // n,VoiceMailMain(${VMCONTEXT})
	$ext->add($id, $c, '', new ext_gotoif('$["${VMBOXEXISTSSTATUS}" = "SUCCESS"]', 'mbexist'));
	$ext->add($id, $c, '', new ext_vmmain('')); // n,VoiceMailMain(${VMCONTEXT})
	$ext->add($id, $c, '', new ext_macro('hangupcall')); // $cmd,n,Macro(user-callerid)
	$ext->add($id, $c, 'mbexist', new ext_vmmain('${AMPUSER}@${VMCONTEXT}'),'check',101); // n,VoiceMailMain(${VMCONTEXT})
	$ext->add($id, $c, '', new ext_macro('hangupcall')); // $cmd,n,Macro(user-callerid)

	// Now add to sip_general_addtional.conf
	//
	if (isset($core_conf) && is_a($core_conf, "core_conf")) {
		$core_conf->addSipGeneral('vmexten',$c);
	}
}

function voicemail_dialvoicemail($c) {
	global $ext;

	$id = "app-dialvm"; // The context to be included

	$ext->addInclude('from-internal-additional', $id); // Add the include from from-internal

	$ext->add($id, $c, '', new ext_answer('')); // $cmd,1,Answer
	$ext->add($id, $c, '', new ext_wait('1')); // $cmd,n,Wait(1)
	$ext->add($id, $c, '', new ext_macro('user-callerid')); // $cmd,n,Macro(user-callerid)
	$ext->add($id, $c, '', new ext_vmmain('')); // n,VoiceMailMain(${VMCONTEXT})
	$ext->add($id, $c, '', new ext_macro('hangupcall'));

	// Note that with this one, it has paramters. So we have to add '_' to the start and '.' to the end
	// of $c
	$c = "_$c.";
	$ext->add($id, $c, '', new ext_answer('')); // $cmd,1,Answer
	$ext->add($id, $c, '', new ext_wait('1')); // $cmd,n,Wait(1)
	// How long is the command? We need to strip that off the front
	$clen = strlen($c)-2;
	$ext->add($id, $c, '', new ext_macro('get-vmcontext','${EXTEN:'.$clen.'}')); 
	$ext->add($id, $c, '', new ext_vmmain('${EXTEN:'.$clen.'}@${VMCONTEXT}')); // n,VoiceMailMain(${VMCONTEXT})
	$ext->add($id, $c, '', new ext_macro('hangupcall')); // $cmd,n,Macro(user-callerid)
}

function voicemail_configpageinit($pagename) {
	global $currentcomponent;

	$action = isset($_REQUEST['action'])?$_REQUEST['action']:null;
	$extdisplay = isset($_REQUEST['extdisplay'])?$_REQUEST['extdisplay']:null;
	$extension = isset($_REQUEST['extension'])?$_REQUEST['extension']:null;
	$tech_hardware = isset($_REQUEST['tech_hardware'])?$_REQUEST['tech_hardware']:null;

       // We only want to hook 'users' or 'extensions' pages. 
	if ($pagename != 'users' && $pagename != 'extensions')  
		return true; 
	// On a 'new' user, 'tech_hardware' is set, and there's no extension. Hook into the page. 
	if ($tech_hardware != null ) { 
		voicemail_applyhooks(); 
	} elseif ($action=="add") { 
	// We don't need to display anything on an 'add', but we do need to handle returned data. 
		// ** WARNING **
		// Mailbox must be processed before adding / deleting users, therefore $sortorder = 1
		$currentcomponent->addprocessfunc('voicemail_configprocess', 1);
		// JS function needed for checking voicemail = Enabled
		$js = 'return (theForm.vm.value == "enabled");';
	} elseif ($extdisplay != '' || $pagename == 'users') { 
	// We're now viewing an extension, so we need to display _and_ process. 
		voicemail_applyhooks(); 
		$currentcomponent->addprocessfunc('voicemail_configprocess', 1);
		$js = 'return (theForm.vm.value == "enabled");';
		$currentcomponent->addjsfunc('isVoiceMailEnabled(notused)',$js);
	} 
} 

function voicemail_applyhooks() {
	global $currentcomponent;

	// Setup two option lists we need
	// Enable / Disable list
	$currentcomponent->addoptlistitem('vmena', 'enabled', 'Enabled');
	$currentcomponent->addoptlistitem('vmena', 'disabled', 'Disabled');
	$currentcomponent->setoptlistopts('vmena', 'sort', false);
	// Enable / Disable vmx list
	$currentcomponent->addoptlistitem('vmxena', '', 'Disabled');
	$currentcomponent->addoptlistitem('vmxena', 'checked', 'Enabled');
	$currentcomponent->setoptlistopts('vmxena', 'sort', false);
	// Yes / No Radio button list
	$currentcomponent->addoptlistitem('vmyn', 'yes', 'yes');
	$currentcomponent->addoptlistitem('vmyn', 'no', 'no');
	$currentcomponent->setoptlistopts('vmyn', 'sort', false);

	// Add the 'proces' function
	$currentcomponent->addguifunc('voicemail_configpageload');
}


function voicemail_configpageload() {
	global $currentcomponent;

	// Init vars from $_REQUEST[]
	$action = isset($_REQUEST['action'])?$_REQUEST['action']:null;
	$ext = isset($_REQUEST['extdisplay'])?$_REQUEST['extdisplay']:null;
	$extn = isset($_REQUEST['extension'])?$_REQUEST['extension']:null;
	$display = isset($_REQUEST['display'])?$_REQUEST['display']:null;

	if ($ext==='') {
		$extdisplay = $extn;
	} else {
		$extdisplay = $ext;
	}


	if ($action != 'del') {
		$vmbox = voicemail_mailbox_get($extdisplay);
		if ( $vmbox == null ) {
			$vm = false;
			$incontext = 'default';
			$vmpwd = null;
			$name = null;
			$email = null;
			$pager = null;
			$vmoptions = null;

			$vmx_state = '';
		} else {
			$incontext = isset($vmbox['vmcontext'])?$vmbox['vmcontext']:'default';
			$vmpwd = $vmbox['pwd'];
			$name = $vmbox['name'];
			$email = $vmbox['email'];
			$pager = $vmbox['pager'];
			$vmoptions = $vmbox['options'];
			$vm = true;

			$vmx_state = voicemail_vmxGet($extdisplay);
		}

		//loop through all options
		$options="";
		if ( isset($vmoptions) && is_array($vmoptions) ) {
			$alloptions = array_keys($vmoptions);
			if (isset($alloptions)) {
				foreach ($alloptions as $option) {
					if ( ($option!="attach") && ($option!="envelope") && ($option!="saycid") && ($option!="delete") && ($option!='') )
					    $options .= $option.'='.$vmoptions[$option].'|';
				}
				$options = rtrim($options,'|');
				// remove the = sign if there are no options set
				$options = rtrim($options,'=');
				
			}
			extract($vmoptions, EXTR_PREFIX_ALL, "vmops");
		} else {
			$vmops_attach = 'no';
			$vmops_saycid = 'no';
			$vmops_envelope = 'no';
			$vmops_delete = 'no';
		}

		if (empty($vmcontext)) 
			$vmcontext = (isset($_REQUEST['vmcontext']) ? $_REQUEST['vmcontext'] : $incontext);
		if (empty($vmcontext))
			$vmcontext = 'default';
		
		if ( $vm==true ) {
			$vmselect = "enabled";
		} else {
			$vmselect = "disabled";
		}
		
		$fc_vm = featurecodes_getFeatureCode('voicemail', 'dialvoicemail');

		$msgInvalidVmPwd = 'Please enter a valid Voicemail Password, using digits only';
		$msgInvalidEmail = 'Please enter a valid Email Address';
		$msgInvalidPager = 'Please enter a valid Pager Email Address';
		$msgInvalidVMContext = 'VM Context cannot be blank';

		$section = 'Voicemail & Directory';
		$currentcomponent->addguielem($section, new gui_selectbox('vm', $currentcomponent->getoptlist('vmena'), $vmselect, _('Status'), '', false));
		$currentcomponent->addguielem($section, new gui_textbox('vmpwd', $vmpwd, _('Voicemail Password'), sprintf(_("This is the password used to access the voicemail system.%sThis password can only contain numbers.%sA user can change the password you enter here after logging into the voicemail system (%s) with a phone."),"<br /><br />","<br /><br />",$fc_vm), "frm_${display}_isVoiceMailEnabled() && !isInteger()", $msgInvalidVmPwd, false));
		$currentcomponent->addguielem($section, new gui_textbox('email', $email, _('Email Address'), _("The email address that voicemails are sent to."), "frm_${display}_isVoiceMailEnabled() && !isEmail()", $msgInvalidEmail, true));
		$currentcomponent->addguielem($section, new gui_textbox('pager', $pager, _('Pager Email Address'), _("Pager/mobile email address that short voicemail notifcations are sent to."), "frm_${display}_isVoiceMailEnabled() && !isEmail()", $msgInvalidEmail, true));
		$currentcomponent->addguielem($section, new gui_radio('attach', $currentcomponent->getoptlist('vmyn'), $vmops_attach, _('Email Attachment'), _("Option to attach voicemails to email.")));
		$currentcomponent->addguielem($section, new gui_radio('saycid', $currentcomponent->getoptlist('vmyn'), $vmops_saycid, _('Play CID'), _("Read back caller's telephone number prior to playing the incoming message, and just after announcing the date and time the message was left.")));
		$currentcomponent->addguielem($section, new gui_radio('envelope', $currentcomponent->getoptlist('vmyn'), $vmops_envelope, _('Play Envelope'), _("Envelope controls whether or not the voicemail system will play the message envelope (date/time) before playing the voicemail message. This settng does not affect the operation of the envelope option in the advanced voicemail menu.")));
		$currentcomponent->addguielem($section, new gui_radio('delete', $currentcomponent->getoptlist('vmyn'), $vmops_delete, _('Delete Vmail'), _("If set to \"yes\" the message will be deleted from the voicemailbox (after having been emailed). Provides functionality that allows a user to receive their voicemail via email alone, rather than having the voicemail able to be retrieved from the Webinterface or the Extension handset.  CAUTION: MUST HAVE attach voicemail to email SET TO YES OTHERWISE YOUR MESSAGES WILL BE LOST FOREVER.")));
		$currentcomponent->addguielem($section, new gui_textbox('options', $options, _('VM Options'), sprintf(_("Separate options with pipe ( | )%sie: review=yes|maxmessage=60"),"<br /><br />")));
		$currentcomponent->addguielem($section, new gui_textbox('vmcontext', $vmcontext, _('VM Context'), _("This is the Voicemail Context which is normally set to default. Do not change unless you understand the implications."), "frm_${display}_isVoiceMailEnabled() && isEmpty()", $msgInvalidVMContext, false));
		$currentcomponent->addguielem($section, new gui_selectbox('vmx_state', $currentcomponent->getoptlist('vmxena'), $vmx_state, 'VmX Locater&trade;', _("Enable/Disable the VmX Locater feature for this user. When enabled all settings are controlled by the user in the User Portal (ARI). Disabling will not delete any existing user settings but will disable access to the feature"), false));
	}
}

function voicemail_configprocess() {
	//create vars from the request
	extract($_REQUEST);
	$action = isset($_REQUEST['action'])?$_REQUEST['action']:null;
	$extdisplay = isset($_REQUEST['extdisplay'])?$_REQUEST['extdisplay']:null;
	
	//if submitting form, update database
	switch ($action) {
		case "add":
			if (!isset($GLOBALS['abort']) || $GLOBALS['abort'] !== true) {
				$usage_arr = framework_check_extension_usage($_REQUEST['extension']);
				if (!empty($usage_arr)) {
					$GLOBALS['abort'] = true;
				} else {
					voicemail_mailbox_add($extdisplay, $_REQUEST);
					needreload();
				}
			}
		break;
		case "del":
			// call remove before del, it needs to know context info
			//
			voicemail_mailbox_remove($extdisplay);
			voicemail_mailbox_del($extdisplay);
			needreload();
		break;
		case "edit":
			if (!isset($GLOBALS['abort']) || $GLOBALS['abort'] !== true) {
				voicemail_mailbox_del($extdisplay);
				if ( $vm != 'disabled' )
					voicemail_mailbox_add($extdisplay, $_REQUEST);
				needreload();
			}
		break;
	}
}

function voicemail_mailbox_get($mbox) {
	$uservm = voicemail_getVoicemail();
	$vmcontexts = array_keys($uservm);

	foreach ($vmcontexts as $vmcontext) {
		if(isset($uservm[$vmcontext][$mbox])){
			$vmbox['vmcontext'] = $vmcontext;
			$vmbox['pwd'] = $uservm[$vmcontext][$mbox]['pwd'];
			$vmbox['name'] = $uservm[$vmcontext][$mbox]['name'];
			$vmbox['email'] = $uservm[$vmcontext][$mbox]['email'];
			$vmbox['pager'] = $uservm[$vmcontext][$mbox]['pager'];
			$vmbox['options'] = $uservm[$vmcontext][$mbox]['options'];
			return $vmbox;
		}
	}
	
	return null;
}

function voicemail_mailbox_remove($mbox) {
	global $amp_conf;
	$uservm = voicemail_getVoicemail();
	$vmcontexts = array_keys($uservm);

	$return = true;

	foreach ($vmcontexts as $vmcontext) {
		if(isset($uservm[$vmcontext][$mbox])){

			$vm_dir = $amp_conf['ASTSPOOLDIR']."/voicemail/$vmcontext/$mbox";
			exec("rm -rf $vm_dir",$output,$ret);
			if ($ret) {
				$return = false;
				$text   = sprintf(_("Failed to delete vmbox: %s@%s"),$mbox, $vmcontext);
				$etext  = sprintf(_("failed with retcode %s while removing %s:"),$ret, $vm_dir)."<br>";
				$etext .= implode("<br>",$output);
				$nt =& notifications::create($db);
				$nt->add_error('voicemail', 'MBOXREMOVE', $text, $etext, '', true, true);
				//
				// TODO: this does not work but we should give some sort of feedback that id did not work
				//
				// echo "<script>javascript:alert('$text\n"._("See notification panel for details")."')</script>";
			}
		}
	}
	return $return;	
}

function voicemail_mailbox_del($mbox) {
	$uservm = voicemail_getVoicemail();
	$vmcontexts = array_keys($uservm);

	foreach ($vmcontexts as $vmcontext) {
		if(isset($uservm[$vmcontext][$mbox])){
			unset($uservm[$vmcontext][$mbox]);
			voicemail_saveVoicemail($uservm);
			return true;
		}
	}
	
	return false;	
}

function voicemail_mailbox_add($mbox, $mboxoptsarray) {
	//check if VM box already exists
	if ( voicemail_mailbox_get($mbox) != null ) {
		trigger_error("Voicemail mailbox '$mbox' already exists, call to voicemail_maibox_add failed");
		die_freepbx();
	}
	
	$uservm = voicemail_getVoicemail();
	extract($mboxoptsarray);
	
	if ($vm != 'disabled')
	{ 
		// need to check if there are any options entered in the text field
		if ($options!=''){
			$options = explode("|",$options);
			foreach($options as $option) {
				$vmoption = explode("=",$option);
				$vmoptions[$vmoption[0]] = $vmoption[1];
			}
		}
		$vmoption = explode("=",$attach);
			$vmoptions[$vmoption[0]] = $vmoption[1];
		$vmoption = explode("=",$saycid);
			$vmoptions[$vmoption[0]] = $vmoption[1];
		$vmoption = explode("=",$envelope);
			$vmoptions[$vmoption[0]] = $vmoption[1];
		$vmoption = explode("=",$delete);
			$vmoptions[$vmoption[0]] = $vmoption[1];
			
		$uservm[$vmcontext][$extension] = array(
			'mailbox' => $extension, 
			'pwd' => $vmpwd,
			'name' => $name,
			'email' => $email,
			'pager' => $pager,
			'options' => $vmoptions
			);
		// Update $_REQUEST with 'devinfo_mailbox, so MWI works.
		if (empty($_REQUEST['devinfo_mailbox'])) {
			$_REQUEST['devinfo_mailbox']="$extension@$vmcontext";
		}
	}
	voicemail_saveVoicemail($uservm);
}

function voicemail_saveVoicemail($vmconf) {
	global $amp_conf;

	// just in case someone tries to be sneaky and not call getVoicemail() first..
	if ($vmconf == null) die_freepbx('Error: Trying to write null voicemail file! I refuse to contiune!');
	
	// yes, this is hardcoded.. is this a bad thing?
	write_voicemailconf(rtrim($amp_conf["ASTETCDIR"],"/")."/voicemail.conf", $vmconf, $section);
}

function voicemail_getVoicemail() {
	global $amp_conf;

	$vmconf = null;
	$section = null;
	
	// yes, this is hardcoded.. is this a bad thing?
	parse_voicemailconf(rtrim($amp_conf["ASTETCDIR"],"/")."/voicemail.conf", $vmconf, $section);
	
	return $vmconf;
}

function voicemail_vmxGet($extension) {
	global $astman;                                                                                                                                                                                                    
		                                                                                                                                                                                                                     
	// Retrieve the state
	$vmx_state=$astman->database_get("AMPUSER",$extension."/vmx/unavail/state");
	if (isset($vmx_state) && (trim($vmx_state) == 'enabled' || trim($vmx_state) == 'disabled')) {
		$vmx_state='checked';
	} else {
		$vmx_state='';
	}

	return $vmx_state;
}                                                                                                                                                                                                                    


?>