const trv_hp_tia_markdownCoverter = new showdown.Converter({simplifiedAutoLink: true, strikethrough: true, tables:true, tasklists: true, emoji:true});
var trv_hp_tia_loading = false;
var trv_hp_mediaRecorder = null;
var trv_hp_mediaRecorderVisualizer = null;
var trv_hp_audioChunks = [];

function trv_hp_tia_addUserMessage(message) {
	$(".trv_hp_tia_message_container .trv_hp_tia_waiting_container").before('<div class="trv_hp_tia_user_question">'+message.replace(/(?:\r\n|\r|\n)/g, '<br>')+'</div>');	
}

function trv_hp_tia_addTiaMessage(message) {
	$(".trv_hp_tia_message_container .trv_hp_tia_waiting_container").before('<div class="trv_hp_tia_answer">'+trv_hp_tia_markdownCoverter.makeHtml(message)+'</div>');	
}

function trv_hp_scrollTIAToLastQuestion()
{
	$(".trv_hp_tia_message_container").animate({
			scrollTop: $(".trv_hp_tia_message_container .trv_hp_tia_user_question:last")[0].offsetTop-10
	}, 400);
}

function trv_hp_tia_toggleInputField(disabled)
{
	if (disabled)
	{
		$("#trv_hp_tia_input").val("").attr("placeholder", "Anfrage wird bearbeitet ...").prop("disabled", true);
		$(".trv_hp_tia_waiting_container").css("display","flex");
	}
	else
	{
		$(".trv_hp_tia_waiting_container").css("display","none");
		$("#trv_hp_tia_input").attr("placeholder", "Ihr Anliegen ...").prop("disabled", false).focus();
	}
}

function trv_hp_tia_initSession()
{
	$.trv_postJson({
			ajax_type: "INIT_TIA_SESSION",
			disableErrorOnReload: true,
			blockScreen: false,
			full_path: null,
			url: "/tia/ajax/ajax_tia.php"	
		});	
}

function trv_hp_tia_sendRequest(text)
{
	if (text != "" && !trv_hp_tia_loading)
	{
		trv_hp_tia_loading = true;
		$("#trv_hp_tia_input").val("").trigger("keyup");
		trv_hp_animateStartPage();
				
		trv_hp_tia_addUserMessage(text);
		trv_hp_tia_toggleInputField(true);
		trv_hp_scrollTIAToLastQuestion();
		
		$.trv_postJson({
			ajax_type: "SEND_TIA_REQUEST",
			blockScreen: false,
			full_path: null,
			url: "/tia/ajax/ajax_tia.php",
			parameter: {
				text: text
			},
			onSuccess: function(data)
			{
				trv_hp_tia_addTiaMessage(data.answer);
				localStorage.setItem("trv_hp_userSuchprofilID", data.suchprofileID);
				trv_hp_tia_toggleInputField(false);
				$(".trv_hp_tia_answer:last a").attr("target","_blank");
				trv_hp_scrollTIAToLastQuestion();
				trv_hp_tia_loading = false;					
			}	
		});	
	}
}

function trv_hp_tia_toggleAssistant()
{
	if ($(".trv_hp_tia_container:visible").length)
	{
		$('.trv_hp_tia_container').fadeOut(400);
	}
	else
	{
		$('.trv_hp_tia_container').fadeIn(400,function()
		{ 
			$('#trv_hp_tia_input').focus();
		});
	}
}

function trv_hp_init_speachToText() {
	if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia)
	{
		$(".trv_hp_tia_microphon").show();
	}
}

async function trv_hp_startSpeachRecording() 
{ 
	$("#trv_hp_tia_input").prop("disabled", true);
	stream = await navigator.mediaDevices.getUserMedia({ audio: true });
	
	trv_hp_mediaRecorderVisualizer = await createMicAmplitudeVisualizer("#trv_hp_micWave", {
	    width: ($("#trv_hp_tia_input").width()-10),
	    color: "#f2f2f2",
	    background: "#3d4750",
		innerHTML: '<i class="fa-solid fa-circle-check trv_hp_tia_audio_transcribe" style="right: 7px;" onclick="trv_hp_sendSpeachRecording()"></i><i class="fa-solid fa-circle-xmark trv_hp_tia_audio_cancel" style="right: 45px;" onclick="trv_hp_stopSpeachRecording()"></i>'
	  }).catch(console.error);
	
	trv_hp_mediaRecorder = new MediaRecorder(stream);
	trv_hp_audioChunks = [];
	
	trv_hp_mediaRecorder.ondataavailable = function(e) {trv_hp_audioChunks.push(e.data);};
	
	trv_hp_mediaRecorder.start();
	$(".trv_hp_tia_microphon").addClass("trv_hp_mic_active");
}



function trv_hp_stopSpeachRecording()
{
	return new Promise((resolve) => {
	   if (!trv_hp_mediaRecorder) return resolve();
	
	   trv_hp_mediaRecorder.onstop = function() {
	     resolve();
	   };

	   trv_hp_mediaRecorder.stop();

	   // Mikrofon freigeben
	   if (stream) {
	     stream.getTracks().forEach(track => track.stop());
	   }
	   
	   $(".trv_hp_tia_microphon").removeClass("trv_hp_mic_active");
	   
	   if (trv_hp_mediaRecorderVisualizer) {
			trv_hp_mediaRecorderVisualizer.stop();
			$("#trv_hp_micWave").hide();
		}
		
		$("#trv_hp_tia_input").prop("disabled", false).focus();
	 });
}

function trv_hp_toggleRecodring()
{
	if ($(".trv_hp_tia_microphon").hasClass("trv_hp_mic_active"))
	{
		trv_hp_sendSpeachRecording(); 
	}
	else
	{
		trv_hp_startSpeachRecording();
	}
}

async function trv_hp_sendSpeachRecording() 
{ 
	await trv_hp_stopSpeachRecording();
	$("#trv_hp_tia_input").prop("disabled", true);
	$(".trv_hp_transcription_wait").show();
		
	if (trv_hp_audioChunks.length === 0) 
	{
	    alert("Keine Aufnahme vorhanden.");
	    return;
	}
	
	const webmBlob = new Blob(trv_hp_audioChunks, { type: 'audio/webm' });

	let formData = new FormData();
	formData.append('audio', webmBlob, 'trancription.webm');

	$.ajax({
	    url: '/tia/ajax/tia_transcribe.php',
	    type: 'POST',
		dataType: "json",
	    data: formData,
	    processData: false,
	    contentType: false,
	    success: function(response) {
			if (response.text)
			{
				if ($("#trv_hp_tia_input").val() == "")
				{
					$("#trv_hp_tia_input").val(response.text).trigger("keyup").focus();
				}
				else
				{
	        		$("#trv_hp_tia_input").val($("#trv_hp_tia_input").val()+" "+response.text).trigger("keyup").focus();
				}
			}
	    },

	    error: function(xhr) {
	      $('#trv_hp_tia_input').val("Serverfehler: " + xhr.responseText);
	    },

	    complete: function() {
			$(".trv_hp_transcription_wait").hide();
			$("#trv_hp_tia_input").prop("disabled", false).focus();
	    }
	  });
}

function trv_hp_animateStartPage()
{
	if ($(".trv_hp_startpage_slogan").length)
	{
		$(" .trv_hp_top_slogan").fadeOut(100);
		$(".trv_hp_tia_message_container").css("position", "absolute");
		
		$(".trv_hp_starpage_buttonbar, .trv_hp_startpage_slogan").fadeOut(400, function(){
			$(this).remove();
			$(".trv_hp_tia_input_container").addClass("trv_hp_tia_input_container_down").animate({"bottom": 110},400);
		});
	}
}