<script lang="ts">
	import { toast } from 'svelte-sonner';
	import { onMount, tick, getContext } from 'svelte';
	import { type Model, mobile, modelfiles, settings, showSidebar, models } from '$lib/stores';
	import { blobToFile, calculateSHA256, findWordIndices } from '$lib/utils';

	import {
		uploadDocToVectorDB,
		uploadWebToVectorDB,
		uploadYoutubeTranscriptionToVectorDB
	} from '$lib/apis/rag';
	import { SUPPORTED_FILE_TYPE, SUPPORTED_FILE_EXTENSIONS, WEBUI_BASE_URL } from '$lib/constants';

	import { transcribeAudio } from '$lib/apis/audio';

	import Prompts from './MessageInput/PromptCommands.svelte';
	import Suggestions from './MessageInput/Suggestions.svelte';
	import AddFilesPlaceholder from '../AddFilesPlaceholder.svelte';
	import Documents from './MessageInput/Documents.svelte';
	import Models from './MessageInput/Models.svelte';
	import Tooltip from '../common/Tooltip.svelte';
	import XMark from '$lib/components/icons/XMark.svelte';

	const i18n = getContext('i18n');

	export let submitPrompt: Function;
	export let stopResponse: Function;

	export let autoScroll = true;
	export let selectedAtModel: Model | undefined;
	export let selectedModels: [''];

	let chatTextAreaElement: HTMLTextAreaElement;
	let filesInputElement;

	let promptsElement;
	let documentsElement;
	let modelsElement;

	let inputFiles;
	let dragged = false;

	let user = null;
	let chatInputPlaceholder = '';

	export let files = [];

	export let fileUploadEnabled = true;
	export let speechRecognitionEnabled = true;

	export let prompt = '';
	export let messages = [];

	let speechRecognition;

	let visionCapableState = 'all';

	$: if (prompt) {
		if (chatTextAreaElement) {
			chatTextAreaElement.style.height = '';
			chatTextAreaElement.style.height = Math.min(chatTextAreaElement.scrollHeight, 200) + 'px';
		}
	}

	$: {
		if (selectedAtModel || selectedModels) {
			visionCapableState = checkModelsAreVisionCapable();
			if (visionCapableState === 'none') {
				// Remove all image files
				const fileCount = files.length;
				files = files.filter((file) => file.type != 'image');
				if (files.length < fileCount) {
					toast.warning($i18n.t('All selected models do not support image input, removed images'));
				}
			}
		}
	}

	let mediaRecorder;
	let audioChunks = [];
	let isRecording = false;
	const MIN_DECIBELS = -45;

	const scrollToBottom = () => {
		const element = document.getElementById('messages-container');
		element.scrollTop = element.scrollHeight;
	};

	const startRecording = async () => {
		const stream = await navigator.mediaDevices.getUserMedia({ audio: true });
		mediaRecorder = new MediaRecorder(stream);
		mediaRecorder.onstart = () => {
			isRecording = true;
			console.log('Recording started');
		};
		mediaRecorder.ondataavailable = (event) => audioChunks.push(event.data);
		mediaRecorder.onstop = async () => {
			isRecording = false;
			console.log('Recording stopped');

			// Create a blob from the audio chunks
			const audioBlob = new Blob(audioChunks, { type: 'audio/wav' });

			const file = blobToFile(audioBlob, 'recording.wav');

			const res = await transcribeAudio(localStorage.token, file).catch((error) => {
				toast.error(error);
				return null;
			});

			if (res) {
				prompt = res.text;
				await tick();
				chatTextAreaElement?.focus();

				if (prompt !== '' && $settings?.speechAutoSend === true) {
					submitPrompt(prompt, user);
				}
			}

			// saveRecording(audioBlob);
			audioChunks = [];
		};

		// Start recording
		mediaRecorder.start();

		// Monitor silence
		monitorSilence(stream);
	};

	const monitorSilence = (stream) => {
		const audioContext = new AudioContext();
		const audioStreamSource = audioContext.createMediaStreamSource(stream);
		const analyser = audioContext.createAnalyser();
		analyser.minDecibels = MIN_DECIBELS;
		audioStreamSource.connect(analyser);

		const bufferLength = analyser.frequencyBinCount;
		const domainData = new Uint8Array(bufferLength);

		let lastSoundTime = Date.now();

		const detectSound = () => {
			analyser.getByteFrequencyData(domainData);

			if (domainData.some((value) => value > 0)) {
				lastSoundTime = Date.now();
			}

			if (isRecording && Date.now() - lastSoundTime > 3000) {
				mediaRecorder.stop();
				audioContext.close();
				return;
			}

			window.requestAnimationFrame(detectSound);
		};

		window.requestAnimationFrame(detectSound);
	};

	const saveRecording = (blob) => {
		const url = URL.createObjectURL(blob);
		const a = document.createElement('a');
		document.body.appendChild(a);
		a.style = 'display: none';
		a.href = url;
		a.download = 'recording.wav';
		a.click();
		window.URL.revokeObjectURL(url);
	};

	const speechRecognitionHandler = () => {
		// Check if SpeechRecognition is supported

		if (isRecording) {
			if (speechRecognition) {
				speechRecognition.stop();
			}

			if (mediaRecorder) {
				mediaRecorder.stop();
			}
		} else {
			isRecording = true;

			if ($settings?.audio?.STTEngine ?? '' !== '') {
				startRecording();
			} else {
				if ('SpeechRecognition' in window || 'webkitSpeechRecognition' in window) {
					// Create a SpeechRecognition object
					speechRecognition = new (window.SpeechRecognition || window.webkitSpeechRecognition)();

					// Set continuous to true for continuous recognition
					speechRecognition.continuous = true;

					// Set the timeout for turning off the recognition after inactivity (in milliseconds)
					const inactivityTimeout = 3000; // 3 seconds

					let timeoutId;
					// Start recognition
					speechRecognition.start();

					// Event triggered when speech is recognized
					speechRecognition.onresult = async (event) => {
						// Clear the inactivity timeout
						clearTimeout(timeoutId);

						// Handle recognized speech
						console.log(event);
						const transcript = event.results[Object.keys(event.results).length - 1][0].transcript;

						prompt = `${prompt}${transcript}`;

						await tick();
						chatTextAreaElement?.focus();

						// Restart the inactivity timeout
						timeoutId = setTimeout(() => {
							console.log('Speech recognition turned off due to inactivity.');
							speechRecognition.stop();
						}, inactivityTimeout);
					};

					// Event triggered when recognition is ended
					speechRecognition.onend = function () {
						// Restart recognition after it ends
						console.log('recognition ended');
						isRecording = false;
						if (prompt !== '' && $settings?.speechAutoSend === true) {
							submitPrompt(prompt, user);
						}
					};

					// Event triggered when an error occurs
					speechRecognition.onerror = function (event) {
						console.log(event);
						toast.error($i18n.t(`Speech recognition error: {{error}}`, { error: event.error }));
						isRecording = false;
					};
				} else {
					toast.error($i18n.t('SpeechRecognition API is not supported in this browser.'));
				}
			}
		}
	};

	const uploadDoc = async (file) => {
		console.log(file);

		const doc = {
			type: 'doc',
			name: file.name,
			collection_name: '',
			upload_status: false,
			error: ''
		};

		try {
			files = [...files, doc];

			if (['audio/mpeg', 'audio/wav'].includes(file['type'])) {
				const res = await transcribeAudio(localStorage.token, file).catch((error) => {
					toast.error(error);
					return null;
				});

				if (res) {
					console.log(res);
					const blob = new Blob([res.text], { type: 'text/plain' });
					file = blobToFile(blob, `${file.name}.txt`);
				}
			}

			const res = await uploadDocToVectorDB(localStorage.token, '', file);

			if (res) {
				doc.upload_status = true;
				doc.collection_name = res.collection_name;
				files = files;
			}
		} catch (e) {
			// Remove the failed doc from the files array
			files = files.filter((f) => f.name !== file.name);
			toast.error(e);
		}
	};

	const uploadWeb = async (url) => {
		console.log(url);

		const doc = {
			type: 'doc',
			name: url,
			collection_name: '',
			upload_status: false,
			url: url,
			error: ''
		};

		try {
			files = [...files, doc];
			const res = await uploadWebToVectorDB(localStorage.token, '', url);

			if (res) {
				doc.upload_status = true;
				doc.collection_name = res.collection_name;
				files = files;
			}
		} catch (e) {
			// Remove the failed doc from the files array
			files = files.filter((f) => f.name !== url);
			toast.error(e);
		}
	};

	const uploadYoutubeTranscription = async (url) => {
		console.log(url);

		const doc = {
			type: 'doc',
			name: url,
			collection_name: '',
			upload_status: false,
			url: url,
			error: ''
		};

		try {
			files = [...files, doc];
			const res = await uploadYoutubeTranscriptionToVectorDB(localStorage.token, url);

			if (res) {
				doc.upload_status = true;
				doc.collection_name = res.collection_name;
				files = files;
			}
		} catch (e) {
			// Remove the failed doc from the files array
			files = files.filter((f) => f.name !== url);
			toast.error(e);
		}
	};

	const checkModelsAreVisionCapable = () => {
		let modelsToCheck = [];
		if (selectedAtModel !== undefined) {
			modelsToCheck = [selectedAtModel.id];
		} else {
			modelsToCheck = selectedModels;
		}
		if (modelsToCheck.length == 0 || modelsToCheck[0] == '') {
			return 'all';
		}
		let visionCapableCount = 0;
		for (const modelName of modelsToCheck) {
			const model = $models.find((m) => m.id === modelName);
			if (!model) {
				continue;
			}
			if (model.custom_info?.meta.vision_capable ?? true) {
				visionCapableCount++;
			}
		}
		if (visionCapableCount == modelsToCheck.length) {
			return 'all';
		} else if (visionCapableCount == 0) {
			return 'none';
		} else {
			return 'some';
		}
	};

	onMount(() => {
		window.setTimeout(() => chatTextAreaElement?.focus(), 0);

		const dropZone = document.querySelector('body');

		const handleKeyDown = (event: KeyboardEvent) => {
			if (event.key === 'Escape') {
				console.log('Escape');
				dragged = false;
			}
		};

		const onDragOver = (e) => {
			e.preventDefault();
			dragged = true;
		};

		const onDragLeave = () => {
			dragged = false;
		};

		const onDrop = async (e) => {
			e.preventDefault();
			console.log(e);

			if (e.dataTransfer?.files) {
				const inputFiles = Array.from(e.dataTransfer?.files);

				if (inputFiles && inputFiles.length > 0) {
					inputFiles.forEach((file) => {
						console.log(file, file.name.split('.').at(-1));
						if (['image/gif', 'image/webp', 'image/jpeg', 'image/png'].includes(file['type'])) {
							if (visionCapableState == 'none') {
								toast.error($i18n.t('Selected models do not support image inputs'));
								return;
							}
							let reader = new FileReader();
							reader.onload = (event) => {
								files = [
									...files,
									{
										type: 'image',
										url: `${event.target.result}`
									}
								];
							};
							reader.readAsDataURL(file);
						} else if (
							SUPPORTED_FILE_TYPE.includes(file['type']) ||
							SUPPORTED_FILE_EXTENSIONS.includes(file.name.split('.').at(-1))
						) {
							uploadDoc(file);
						} else {
							toast.error(
								$i18n.t(
									`Unknown File Type '{{file_type}}', but accepting and treating as plain text`,
									{ file_type: file['type'] }
								)
							);
							uploadDoc(file);
						}
					});
				} else {
					toast.error($i18n.t(`File not found.`));
				}
			}

			dragged = false;
		};

		window.addEventListener('keydown', handleKeyDown);

		dropZone?.addEventListener('dragover', onDragOver);
		dropZone?.addEventListener('drop', onDrop);
		dropZone?.addEventListener('dragleave', onDragLeave);

		return () => {
			window.removeEventListener('keydown', handleKeyDown);

			dropZone?.removeEventListener('dragover', onDragOver);
			dropZone?.removeEventListener('drop', onDrop);
			dropZone?.removeEventListener('dragleave', onDragLeave);
		};
	});
</script>

{#if dragged}
	<div
		class="fixed {$showSidebar
			? 'left-0 md:left-[260px] md:w-[calc(100%-260px)]'
			: 'left-0'}  w-full h-full flex z-50 touch-none pointer-events-none"
		id="dropzone"
		role="region"
		aria-label="Drag and Drop Container"
	>
		<div class="absolute w-full h-full backdrop-blur bg-gray-800/40 flex justify-center">
			<div class="m-auto pt-64 flex flex-col justify-center">
				<div class="max-w-md">
					<AddFilesPlaceholder />
				</div>
			</div>
		</div>
	</div>
{/if}

<div class="fixed bottom-0 {$showSidebar ? 'left-0 md:left-[260px]' : 'left-0'} right-0">
	<div class="w-full">
		<div class="px-2.5 md:px-16 -mb-0.5 mx-auto inset-x-0 bg-transparent flex justify-center">
			<div class="flex flex-col max-w-5xl w-full">
				<div class="relative">
					{#if autoScroll === false && messages.length > 0}
						<div class=" absolute -top-12 left-0 right-0 flex justify-center z-30">
							<button
								class=" bg-white border border-gray-100 dark:border-none dark:bg-white/20 p-1.5 rounded-full"
								on:click={() => {
									autoScroll = true;
									scrollToBottom();
								}}
							>
								<svg
									xmlns="http://www.w3.org/2000/svg"
									viewBox="0 0 20 20"
									fill="currentColor"
									class="w-5 h-5"
								>
									<path
										fill-rule="evenodd"
										d="M10 3a.75.75 0 01.75.75v10.638l3.96-4.158a.75.75 0 111.08 1.04l-5.25 5.5a.75.75 0 01-1.08 0l-5.25-5.5a.75.75 0 111.08-1.04l3.96 4.158V3.75A.75.75 0 0110 3z"
										clip-rule="evenodd"
									/>
								</svg>
							</button>
						</div>
					{/if}
				</div>

				<div class="w-full relative">
					{#if prompt.charAt(0) === '/'}
						<Prompts bind:this={promptsElement} bind:prompt />
					{:else if prompt.charAt(0) === '#'}
						<Documents
							bind:this={documentsElement}
							bind:prompt
							on:youtube={(e) => {
								console.log(e);
								uploadYoutubeTranscription(e.detail);
							}}
							on:url={(e) => {
								console.log(e);
								uploadWeb(e.detail);
							}}
							on:select={(e) => {
								console.log(e);
								files = [
									...files,
									{
										type: e?.detail?.type ?? 'doc',
										...e.detail,
										upload_status: true
									}
								];
							}}
						/>
					{/if}

					<Models
						bind:this={modelsElement}
						bind:prompt
						bind:user
						bind:chatInputPlaceholder
						{messages}
						on:select={(e) => {
							selectedAtModel = e.detail;
							chatTextAreaElement?.focus();
						}}
					/>

					{#if selectedAtModel !== undefined}
						<div
							class="px-3 py-2.5 text-left w-full flex justify-between items-center absolute bottom-0 left-0 right-0 bg-gradient-to-t from-50% from-white dark:from-gray-900"
						>
							<div class="flex items-center gap-2 text-sm dark:text-gray-500">
								<img
									crossorigin="anonymous"
									alt="model profile"
									class="size-5 max-w-[28px] object-cover rounded-full"
									src={$modelfiles.find((modelfile) => modelfile.tagName === selectedAtModel.id)
										?.imageUrl ??
										($i18n.language === 'dg-DG'
											? `/doge.png`
											: `${WEBUI_BASE_URL}/static/favicon.png`)}
								/>
								<div>
									Talking to <span class=" font-medium"
										>{selectedAtModel.custom_info?.name ?? selectedAtModel.name}
									</span>
								</div>
							</div>
							<div>
								<button
									class="flex items-center"
									on:click={() => {
										selectedAtModel = undefined;
									}}
								>
									<XMark />
								</button>
							</div>
						</div>
					{/if}
				</div>
			</div>
		</div>

		<div class="bg-white dark:bg-gray-900">
			<div class="max-w-6xl px-2.5 md:px-6 mx-auto inset-x-0">
				<div class=" pb-2">
					<input
						bind:this={filesInputElement}
						bind:files={inputFiles}
						type="file"
						hidden
						multiple
						on:change={async () => {
							if (inputFiles && inputFiles.length > 0) {
								const _inputFiles = Array.from(inputFiles);
								_inputFiles.forEach((file) => {
									if (
										['image/gif', 'image/webp', 'image/jpeg', 'image/png'].includes(file['type'])
									) {
										if (visionCapableState === 'none') {
											toast.error($i18n.t('Selected models do not support image inputs'));
											inputFiles = null;
											filesInputElement.value = '';
											return;
										}
										let reader = new FileReader();
										reader.onload = (event) => {
											files = [
												...files,
												{
													type: 'image',
													url: `${event.target.result}`
												}
											];
											inputFiles = null;
											filesInputElement.value = '';
										};
										reader.readAsDataURL(file);
									} else if (
										SUPPORTED_FILE_TYPE.includes(file['type']) ||
										SUPPORTED_FILE_EXTENSIONS.includes(file.name.split('.').at(-1))
									) {
										uploadDoc(file);
										filesInputElement.value = '';
									} else {
										toast.error(
											$i18n.t(
												`Unknown File Type '{{file_type}}', but accepting and treating as plain text`,
												{ file_type: file['type'] }
											)
										);
										uploadDoc(file);
										filesInputElement.value = '';
									}
								});
							} else {
								toast.error($i18n.t(`File not found.`));
							}
						}}
					/>
					<form
						dir={$settings?.chatDirection ?? 'LTR'}
						class=" flex flex-col relative w-full rounded-3xl px-1.5 bg-gray-50 dark:bg-gray-850 dark:text-gray-100"
						on:submit|preventDefault={() => {
							submitPrompt(prompt, user);
						}}
					>
						{#if files.length > 0}
							<div class="mx-2 mt-2 mb-1 flex flex-wrap gap-2">
								{#each files as file, fileIdx}
									<div class=" relative group">
										{#if file.type === 'image'}
											<div class="relative">
												<img
													src={file.url}
													alt="input"
													class=" h-16 w-16 rounded-xl object-cover"
												/>
												{#if visionCapableState === 'some'}
													<Tooltip
														className=" absolute top-0 left-0"
														content={$i18n.t('A selected model does not support image input')}
													>
														<svg
															xmlns="http://www.w3.org/2000/svg"
															viewBox="0 0 24 24"
															fill="currentColor"
															class="w-6 h-6 fill-yellow-300"
														>
															<path
																fill-rule="evenodd"
																d="M9.401 3.003c1.155-2 4.043-2 5.197 0l7.355 12.748c1.154 2-.29 4.5-2.599 4.5H4.645c-2.309 0-3.752-2.5-2.598-4.5L9.4 3.003ZM12 8.25a.75.75 0 0 1 .75.75v3.75a.75.75 0 0 1-1.5 0V9a.75.75 0 0 1 .75-.75Zm0 8.25a.75.75 0 1 0 0-1.5.75.75 0 0 0 0 1.5Z"
																clip-rule="evenodd"
															/>
														</svg>
													</Tooltip>
												{/if}
											</div>
										{:else if file.type === 'doc'}
											<div
												class="h-16 w-[15rem] flex items-center space-x-3 px-2.5 dark:bg-gray-600 rounded-xl border border-gray-200 dark:border-none"
											>
												<div class="p-2.5 bg-red-400 text-white rounded-lg">
													{#if file.upload_status}
														<svg
															xmlns="http://www.w3.org/2000/svg"
															viewBox="0 0 24 24"
															fill="currentColor"
															class="w-6 h-6"
														>
															<path
																fill-rule="evenodd"
																d="M5.625 1.5c-1.036 0-1.875.84-1.875 1.875v17.25c0 1.035.84 1.875 1.875 1.875h12.75c1.035 0 1.875-.84 1.875-1.875V12.75A3.75 3.75 0 0 0 16.5 9h-1.875a1.875 1.875 0 0 1-1.875-1.875V5.25A3.75 3.75 0 0 0 9 1.5H5.625ZM7.5 15a.75.75 0 0 1 .75-.75h7.5a.75.75 0 0 1 0 1.5h-7.5A.75.75 0 0 1 7.5 15Zm.75 2.25a.75.75 0 0 0 0 1.5H12a.75.75 0 0 0 0-1.5H8.25Z"
																clip-rule="evenodd"
															/>
															<path
																d="M12.971 1.816A5.23 5.23 0 0 1 14.25 5.25v1.875c0 .207.168.375.375.375H16.5a5.23 5.23 0 0 1 3.434 1.279 9.768 9.768 0 0 0-6.963-6.963Z"
															/>
														</svg>
													{:else}
														<svg
															class=" w-6 h-6 translate-y-[0.5px]"
															fill="currentColor"
															viewBox="0 0 24 24"
															xmlns="http://www.w3.org/2000/svg"
															><style>
																.spinner_qM83 {
																	animation: spinner_8HQG 1.05s infinite;
																}
																.spinner_oXPr {
																	animation-delay: 0.1s;
																}
																.spinner_ZTLf {
																	animation-delay: 0.2s;
																}
																@keyframes spinner_8HQG {
																	0%,
																	57.14% {
																		animation-timing-function: cubic-bezier(0.33, 0.66, 0.66, 1);
																		transform: translate(0);
																	}
																	28.57% {
																		animation-timing-function: cubic-bezier(0.33, 0, 0.66, 0.33);
																		transform: translateY(-6px);
																	}
																	100% {
																		transform: translate(0);
																	}
																}
															</style><circle class="spinner_qM83" cx="4" cy="12" r="2.5" /><circle
																class="spinner_qM83 spinner_oXPr"
																cx="12"
																cy="12"
																r="2.5"
															/><circle
																class="spinner_qM83 spinner_ZTLf"
																cx="20"
																cy="12"
																r="2.5"
															/></svg
														>
													{/if}
												</div>

												<div class="flex flex-col justify-center -space-y-0.5">
													<div class=" dark:text-gray-100 text-sm font-medium line-clamp-1">
														{file.name}
													</div>

													<div class=" text-gray-500 text-sm">{$i18n.t('Document')}</div>
												</div>
											</div>
										{:else if file.type === 'collection'}
											<div
												class="h-16 w-[15rem] flex items-center space-x-3 px-2.5 dark:bg-gray-600 rounded-xl border border-gray-200 dark:border-none"
											>
												<div class="p-2.5 bg-red-400 text-white rounded-lg">
													<svg
														xmlns="http://www.w3.org/2000/svg"
														viewBox="0 0 24 24"
														fill="currentColor"
														class="w-6 h-6"
													>
														<path
															d="M7.5 3.375c0-1.036.84-1.875 1.875-1.875h.375a3.75 3.75 0 0 1 3.75 3.75v1.875C13.5 8.161 14.34 9 15.375 9h1.875A3.75 3.75 0 0 1 21 12.75v3.375C21 17.16 20.16 18 19.125 18h-9.75A1.875 1.875 0 0 1 7.5 16.125V3.375Z"
														/>
														<path
															d="M15 5.25a5.23 5.23 0 0 0-1.279-3.434 9.768 9.768 0 0 1 6.963 6.963A5.23 5.23 0 0 0 17.25 7.5h-1.875A.375.375 0 0 1 15 7.125V5.25ZM4.875 6H6v10.125A3.375 3.375 0 0 0 9.375 19.5H16.5v1.125c0 1.035-.84 1.875-1.875 1.875h-9.75A1.875 1.875 0 0 1 3 20.625V7.875C3 6.839 3.84 6 4.875 6Z"
														/>
													</svg>
												</div>

												<div class="flex flex-col justify-center -space-y-0.5">
													<div class=" dark:text-gray-100 text-sm font-medium line-clamp-1">
														{file?.title ?? `#${file.name}`}
													</div>

													<div class=" text-gray-500 text-sm">{$i18n.t('Collection')}</div>
												</div>
											</div>
										{/if}

										<div class=" absolute -top-1 -right-1">
											<button
												class=" bg-gray-400 text-white border border-white rounded-full group-hover:visible invisible transition"
												type="button"
												on:click={() => {
													files.splice(fileIdx, 1);
													files = files;
												}}
											>
												<svg
													xmlns="http://www.w3.org/2000/svg"
													viewBox="0 0 20 20"
													fill="currentColor"
													class="w-4 h-4"
												>
													<path
														d="M6.28 5.22a.75.75 0 00-1.06 1.06L8.94 10l-3.72 3.72a.75.75 0 101.06 1.06L10 11.06l3.72 3.72a.75.75 0 101.06-1.06L11.06 10l3.72-3.72a.75.75 0 00-1.06-1.06L10 8.94 6.28 5.22z"
													/>
												</svg>
											</button>
										</div>
									</div>
								{/each}
							</div>
						{/if}

						<div class=" flex">
							{#if fileUploadEnabled}
								<div class=" self-end mb-2 ml-1">
									<Tooltip content={$i18n.t('Upload files')}>
										<button
											class="bg-gray-50 hover:bg-gray-100 text-gray-800 dark:bg-gray-850 dark:text-white dark:hover:bg-gray-800 transition rounded-full p-1.5"
											type="button"
											on:click={() => {
												filesInputElement.click();
											}}
										>
											<svg
												xmlns="http://www.w3.org/2000/svg"
												viewBox="0 0 16 16"
												fill="currentColor"
												class="w-[1.2rem] h-[1.2rem]"
											>
												<path
													d="M8.75 3.75a.75.75 0 0 0-1.5 0v3.5h-3.5a.75.75 0 0 0 0 1.5h3.5v3.5a.75.75 0 0 0 1.5 0v-3.5h3.5a.75.75 0 0 0 0-1.5h-3.5v-3.5Z"
												/>
											</svg>
										</button>
									</Tooltip>
								</div>
							{/if}

							<textarea
								id="chat-textarea"
								bind:this={chatTextAreaElement}
								class="scrollbar-hidden bg-gray-50 dark:bg-gray-850 dark:text-gray-100 outline-none w-full py-3 px-3 {fileUploadEnabled
									? ''
									: ' pl-4'} rounded-xl resize-none h-[48px]"
								placeholder={chatInputPlaceholder !== ''
									? chatInputPlaceholder
									: isRecording
									? $i18n.t('Listening...')
									: $i18n.t('Send a Message')}
								bind:value={prompt}
								on:keypress={(e) => {
									if (
										!$mobile ||
										!(
											'ontouchstart' in window ||
											navigator.maxTouchPoints > 0 ||
											navigator.msMaxTouchPoints > 0
										)
									) {
										if (e.keyCode == 13 && !e.shiftKey) {
											e.preventDefault();
										}
										if (prompt !== '' && e.keyCode == 13 && !e.shiftKey) {
											submitPrompt(prompt, user);
										}
									}
								}}
								on:keydown={async (e) => {
									const isCtrlPressed = e.ctrlKey || e.metaKey; // metaKey is for Cmd key on Mac

									// Check if Ctrl + R is pressed
									if (prompt === '' && isCtrlPressed && e.key.toLowerCase() === 'r') {
										e.preventDefault();
										console.log('regenerate');

										const regenerateButton = [
											...document.getElementsByClassName('regenerate-response-button')
										]?.at(-1);

										regenerateButton?.click();
									}

									if (prompt === '' && e.key == 'ArrowUp') {
										e.preventDefault();

										const userMessageElement = [
											...document.getElementsByClassName('user-message')
										]?.at(-1);

										const editButton = [
											...document.getElementsByClassName('edit-user-message-button')
										]?.at(-1);

										console.log(userMessageElement);

										userMessageElement.scrollIntoView({ block: 'center' });
										editButton?.click();
									}

									if (['/', '#', '@'].includes(prompt.charAt(0)) && e.key === 'ArrowUp') {
										e.preventDefault();

										(promptsElement || documentsElement || modelsElement).selectUp();

										const commandOptionButton = [
											...document.getElementsByClassName('selected-command-option-button')
										]?.at(-1);
										commandOptionButton.scrollIntoView({ block: 'center' });
									}

									if (['/', '#', '@'].includes(prompt.charAt(0)) && e.key === 'ArrowDown') {
										e.preventDefault();

										(promptsElement || documentsElement || modelsElement).selectDown();

										const commandOptionButton = [
											...document.getElementsByClassName('selected-command-option-button')
										]?.at(-1);
										commandOptionButton.scrollIntoView({ block: 'center' });
									}

									if (['/', '#', '@'].includes(prompt.charAt(0)) && e.key === 'Enter') {
										e.preventDefault();

										const commandOptionButton = [
											...document.getElementsByClassName('selected-command-option-button')
										]?.at(-1);

										if (commandOptionButton) {
											commandOptionButton?.click();
										} else {
											document.getElementById('send-message-button')?.click();
										}
									}

									if (['/', '#', '@'].includes(prompt.charAt(0)) && e.key === 'Tab') {
										e.preventDefault();

										const commandOptionButton = [
											...document.getElementsByClassName('selected-command-option-button')
										]?.at(-1);

										commandOptionButton?.click();
									} else if (e.key === 'Tab') {
										const words = findWordIndices(prompt);

										if (words.length > 0) {
											const word = words.at(0);
											const fullPrompt = prompt;

											prompt = prompt.substring(0, word?.endIndex + 1);
											await tick();

											e.target.scrollTop = e.target.scrollHeight;
											prompt = fullPrompt;
											await tick();

											e.preventDefault();
											e.target.setSelectionRange(word?.startIndex, word.endIndex + 1);
										}

										e.target.style.height = '';
										e.target.style.height = Math.min(e.target.scrollHeight, 200) + 'px';
									}

									if (e.key === 'Escape') {
										console.log('Escape');
										selectedAtModel = undefined;
									}
								}}
								rows="1"
								on:input={(e) => {
									e.target.style.height = '';
									e.target.style.height = Math.min(e.target.scrollHeight, 200) + 'px';
									user = null;
								}}
								on:focus={(e) => {
									e.target.style.height = '';
									e.target.style.height = Math.min(e.target.scrollHeight, 200) + 'px';
								}}
								on:paste={(e) => {
									const clipboardData = e.clipboardData || window.clipboardData;

									if (clipboardData && clipboardData.items) {
										for (const item of clipboardData.items) {
											if (item.type.indexOf('image') !== -1) {
												const blob = item.getAsFile();
												const reader = new FileReader();

												reader.onload = function (e) {
													files = [
														...files,
														{
															type: 'image',
															url: `${e.target.result}`
														}
													];
												};

												reader.readAsDataURL(blob);
											}
										}
									}
								}}
							/>

							<div class="self-end mb-2 flex space-x-1 mr-1">
								{#if messages.length == 0 || messages.at(-1).done == true}
									<Tooltip content={$i18n.t('Record voice')}>
										{#if speechRecognitionEnabled}
											<button
												id="voice-input-button"
												class=" text-gray-600 dark:text-gray-300 hover:bg-gray-50 dark:hover:bg-gray-850 transition rounded-full p-1.5 mr-0.5 self-center"
												type="button"
												on:click={() => {
													speechRecognitionHandler();
												}}
											>
												{#if isRecording}
													<svg
														class=" w-5 h-5 translate-y-[0.5px]"
														fill="currentColor"
														viewBox="0 0 24 24"
														xmlns="http://www.w3.org/2000/svg"
														><style>
															.spinner_qM83 {
																animation: spinner_8HQG 1.05s infinite;
															}
															.spinner_oXPr {
																animation-delay: 0.1s;
															}
															.spinner_ZTLf {
																animation-delay: 0.2s;
															}
															@keyframes spinner_8HQG {
																0%,
																57.14% {
																	animation-timing-function: cubic-bezier(0.33, 0.66, 0.66, 1);
																	transform: translate(0);
																}
																28.57% {
																	animation-timing-function: cubic-bezier(0.33, 0, 0.66, 0.33);
																	transform: translateY(-6px);
																}
																100% {
																	transform: translate(0);
																}
															}
														</style><circle class="spinner_qM83" cx="4" cy="12" r="2.5" /><circle
															class="spinner_qM83 spinner_oXPr"
															cx="12"
															cy="12"
															r="2.5"
														/><circle
															class="spinner_qM83 spinner_ZTLf"
															cx="20"
															cy="12"
															r="2.5"
														/></svg
													>
												{:else}
													<svg
														xmlns="http://www.w3.org/2000/svg"
														viewBox="0 0 20 20"
														fill="currentColor"
														class="w-5 h-5 translate-y-[0.5px]"
													>
														<path d="M7 4a3 3 0 016 0v6a3 3 0 11-6 0V4z" />
														<path
															d="M5.5 9.643a.75.75 0 00-1.5 0V10c0 3.06 2.29 5.585 5.25 5.954V17.5h-1.5a.75.75 0 000 1.5h4.5a.75.75 0 000-1.5h-1.5v-1.546A6.001 6.001 0 0016 10v-.357a.75.75 0 00-1.5 0V10a4.5 4.5 0 01-9 0v-.357z"
														/>
													</svg>
												{/if}
											</button>
										{/if}
									</Tooltip>

									<Tooltip content={$i18n.t('Send message')}>
										<button
											id="send-message-button"
											class="{prompt !== ''
												? 'bg-black text-white hover:bg-gray-900 dark:bg-white dark:text-black dark:hover:bg-gray-100 '
												: 'text-white bg-gray-200 dark:text-gray-900 dark:bg-gray-700 disabled'} transition rounded-full p-1.5 self-center"
											type="submit"
											disabled={prompt === ''}
										>
											<svg
												xmlns="http://www.w3.org/2000/svg"
												viewBox="0 0 16 16"
												fill="currentColor"
												class="w-5 h-5"
											>
												<path
													fill-rule="evenodd"
													d="M8 14a.75.75 0 0 1-.75-.75V4.56L4.03 7.78a.75.75 0 0 1-1.06-1.06l4.5-4.5a.75.75 0 0 1 1.06 0l4.5 4.5a.75.75 0 0 1-1.06 1.06L8.75 4.56v8.69A.75.75 0 0 1 8 14Z"
													clip-rule="evenodd"
												/>
											</svg>
										</button>
									</Tooltip>
								{:else}
									<button
										class="bg-white hover:bg-gray-100 text-gray-800 dark:bg-gray-700 dark:text-white dark:hover:bg-gray-800 transition rounded-full p-1.5"
										on:click={stopResponse}
									>
										<svg
											xmlns="http://www.w3.org/2000/svg"
											viewBox="0 0 24 24"
											fill="currentColor"
											class="w-5 h-5"
										>
											<path
												fill-rule="evenodd"
												d="M2.25 12c0-5.385 4.365-9.75 9.75-9.75s9.75 4.365 9.75 9.75-4.365 9.75-9.75 9.75S2.25 17.385 2.25 12zm6-2.438c0-.724.588-1.312 1.313-1.312h4.874c.725 0 1.313.588 1.313 1.313v4.874c0 .725-.588 1.313-1.313 1.313H9.564a1.312 1.312 0 01-1.313-1.313V9.564z"
												clip-rule="evenodd"
											/>
										</svg>
									</button>
								{/if}
							</div>
						</div>
					</form>

					<div class="mt-1.5 text-xs text-gray-500 text-center">
						{$i18n.t('LLMs can make mistakes. Verify important information.')}
					</div>
				</div>
			</div>
		</div>
	</div>
</div>

<style>
	.scrollbar-hidden:active::-webkit-scrollbar-thumb,
	.scrollbar-hidden:focus::-webkit-scrollbar-thumb,
	.scrollbar-hidden:hover::-webkit-scrollbar-thumb {
		visibility: visible;
	}
	.scrollbar-hidden::-webkit-scrollbar-thumb {
		visibility: hidden;
	}
</style>
