<script lang="ts">
	import fileSaver from 'file-saver';
	const { saveAs } = fileSaver;

	import { resetVectorDB } from '$lib/apis/rag';
	import { chats, user } from '$lib/stores';

	import {
		createNewChat,
		deleteAllChats,
		getAllChats,
		getAllUserChats,
		getChatList
	} from '$lib/apis/chats';
	import { getImportOrigin, convertOpenAIChats } from '$lib/utils';
	import { onMount, getContext } from 'svelte';
	import { goto } from '$app/navigation';
	import { toast } from 'svelte-sonner';

	const i18n = getContext('i18n');

	export let saveSettings: Function;
	// Chats
	let saveChatHistory = true;
	let importFiles;
	let showDeleteConfirm = false;
	let chatImportInputElement: HTMLInputElement;

	$: if (importFiles) {
		console.log(importFiles);

		let reader = new FileReader();
		reader.onload = (event) => {
			let chats = JSON.parse(event.target.result);
			console.log(chats);
			if (getImportOrigin(chats) == 'openai') {
				try {
					chats = convertOpenAIChats(chats);
				} catch (error) {
					console.log('Unable to import chats:', error);
				}
			}
			importChats(chats);
		};

		if (importFiles.length > 0) {
			reader.readAsText(importFiles[0]);
		}
	}

	const importChats = async (_chats) => {
		for (const chat of _chats) {
			console.log(chat);

			if (chat.chat) {
				await createNewChat(localStorage.token, chat.chat);
			} else {
				await createNewChat(localStorage.token, chat);
			}
		}

		await chats.set(await getChatList(localStorage.token));
	};

	const exportChats = async () => {
		let blob = new Blob([JSON.stringify(await getAllChats(localStorage.token))], {
			type: 'application/json'
		});
		saveAs(blob, `chat-export-${Date.now()}.json`);
	};

	const exportAllUserChats = async () => {
		let blob = new Blob([JSON.stringify(await getAllUserChats(localStorage.token))], {
			type: 'application/json'
		});
		saveAs(blob, `all-chats-export-${Date.now()}.json`);
	};

	const deleteChats = async () => {
		await goto('/');
		await deleteAllChats(localStorage.token).catch((error) => {
			toast.error(error);
		});
		await chats.set(await getChatList(localStorage.token));
	};

	const toggleSaveChatHistory = async () => {
		saveChatHistory = !saveChatHistory;
		console.log(saveChatHistory);

		if (saveChatHistory === false) {
			await goto('/');
		}
		saveSettings({ saveChatHistory: saveChatHistory });
	};

	onMount(async () => {
		let settings = JSON.parse(localStorage.getItem('settings') ?? '{}');

		saveChatHistory = settings.saveChatHistory ?? true;
	});
</script>

<div class="flex flex-col h-full justify-between space-y-3 text-sm max-h-[22rem]">
	<div class=" space-y-2">
		<div
			class="flex flex-col justify-between rounded-md items-center py-2 px-3.5 w-full transition"
		>
			<div class="flex w-full justify-between">
				<div class=" self-center text-sm font-medium">{$i18n.t('Chat History')}</div>

				<button
					class="p-1 px-3 text-xs flex rounded transition"
					type="button"
					on:click={() => {
						toggleSaveChatHistory();
					}}
				>
					{#if saveChatHistory === true}
						<svg
							xmlns="http://www.w3.org/2000/svg"
							viewBox="0 0 16 16"
							fill="currentColor"
							class="w-4 h-4"
						>
							<path d="M8 9.5a1.5 1.5 0 1 0 0-3 1.5 1.5 0 0 0 0 3Z" />
							<path
								fill-rule="evenodd"
								d="M1.38 8.28a.87.87 0 0 1 0-.566 7.003 7.003 0 0 1 13.238.006.87.87 0 0 1 0 .566A7.003 7.003 0 0 1 1.379 8.28ZM11 8a3 3 0 1 1-6 0 3 3 0 0 1 6 0Z"
								clip-rule="evenodd"
							/>
						</svg>

						<span class="ml-2 self-center"> {$i18n.t('On')} </span>
					{:else}
						<svg
							xmlns="http://www.w3.org/2000/svg"
							viewBox="0 0 16 16"
							fill="currentColor"
							class="w-4 h-4"
						>
							<path
								fill-rule="evenodd"
								d="M3.28 2.22a.75.75 0 0 0-1.06 1.06l10.5 10.5a.75.75 0 1 0 1.06-1.06l-1.322-1.323a7.012 7.012 0 0 0 2.16-3.11.87.87 0 0 0 0-.567A7.003 7.003 0 0 0 4.82 3.76l-1.54-1.54Zm3.196 3.195 1.135 1.136A1.502 1.502 0 0 1 9.45 8.389l1.136 1.135a3 3 0 0 0-4.109-4.109Z"
								clip-rule="evenodd"
							/>
							<path
								d="m7.812 10.994 1.816 1.816A7.003 7.003 0 0 1 1.38 8.28a.87.87 0 0 1 0-.566 6.985 6.985 0 0 1 1.113-2.039l2.513 2.513a3 3 0 0 0 2.806 2.806Z"
							/>
						</svg>

						<span class="ml-2 self-center">{$i18n.t('Off')}</span>
					{/if}
				</button>
			</div>

			<div class="text-xs text-left w-full font-medium mt-0.5">
				{$i18n.t('This setting does not sync across browsers or devices.')}
			</div>
		</div>

		<hr class=" dark:border-gray-700" />

		<div class="flex flex-col">
			<input
				id="chat-import-input"
				bind:this={chatImportInputElement}
				bind:files={importFiles}
				type="file"
				accept=".json"
				hidden
			/>
			<button
				class=" flex rounded-md py-2 px-3.5 w-full hover:bg-gray-200 dark:hover:bg-gray-800 transition"
				on:click={() => {
					chatImportInputElement.click();
				}}
			>
				<div class=" self-center mr-3">
					<svg
						xmlns="http://www.w3.org/2000/svg"
						viewBox="0 0 16 16"
						fill="currentColor"
						class="w-4 h-4"
					>
						<path
							fill-rule="evenodd"
							d="M4 2a1.5 1.5 0 0 0-1.5 1.5v9A1.5 1.5 0 0 0 4 14h8a1.5 1.5 0 0 0 1.5-1.5V6.621a1.5 1.5 0 0 0-.44-1.06L9.94 2.439A1.5 1.5 0 0 0 8.878 2H4Zm4 9.5a.75.75 0 0 1-.75-.75V8.06l-.72.72a.75.75 0 0 1-1.06-1.06l2-2a.75.75 0 0 1 1.06 0l2 2a.75.75 0 1 1-1.06 1.06l-.72-.72v2.69a.75.75 0 0 1-.75.75Z"
							clip-rule="evenodd"
						/>
					</svg>
				</div>
				<div class=" self-center text-sm font-medium">{$i18n.t('Import Chats')}</div>
			</button>
			<button
				class=" flex rounded-md py-2 px-3.5 w-full hover:bg-gray-200 dark:hover:bg-gray-800 transition"
				on:click={() => {
					exportChats();
				}}
			>
				<div class=" self-center mr-3">
					<svg
						xmlns="http://www.w3.org/2000/svg"
						viewBox="0 0 16 16"
						fill="currentColor"
						class="w-4 h-4"
					>
						<path
							fill-rule="evenodd"
							d="M4 2a1.5 1.5 0 0 0-1.5 1.5v9A1.5 1.5 0 0 0 4 14h8a1.5 1.5 0 0 0 1.5-1.5V6.621a1.5 1.5 0 0 0-.44-1.06L9.94 2.439A1.5 1.5 0 0 0 8.878 2H4Zm4 3.5a.75.75 0 0 1 .75.75v2.69l.72-.72a.75.75 0 1 1 1.06 1.06l-2 2a.75.75 0 0 1-1.06 0l-2-2a.75.75 0 0 1 1.06-1.06l.72.72V6.25A.75.75 0 0 1 8 5.5Z"
							clip-rule="evenodd"
						/>
					</svg>
				</div>
				<div class=" self-center text-sm font-medium">{$i18n.t('Export Chats')}</div>
			</button>
		</div>

		<hr class=" dark:border-gray-700" />

		{#if showDeleteConfirm}
			<div class="flex justify-between rounded-md items-center py-2 px-3.5 w-full transition">
				<div class="flex items-center space-x-3">
					<svg
						xmlns="http://www.w3.org/2000/svg"
						viewBox="0 0 16 16"
						fill="currentColor"
						class="w-4 h-4"
					>
						<path d="M2 3a1 1 0 0 1 1-1h10a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H3a1 1 0 0 1-1-1V3Z" />
						<path
							fill-rule="evenodd"
							d="M13 6H3v6a2 2 0 0 0 2 2h6a2 2 0 0 0 2-2V6ZM5.72 7.47a.75.75 0 0 1 1.06 0L8 8.69l1.22-1.22a.75.75 0 1 1 1.06 1.06L9.06 9.75l1.22 1.22a.75.75 0 1 1-1.06 1.06L8 10.81l-1.22 1.22a.75.75 0 0 1-1.06-1.06l1.22-1.22-1.22-1.22a.75.75 0 0 1 0-1.06Z"
							clip-rule="evenodd"
						/>
					</svg>
					<span>{$i18n.t('Are you sure?')}</span>
				</div>

				<div class="flex space-x-1.5 items-center">
					<button
						class="hover:text-white transition"
						on:click={() => {
							deleteChats();
							showDeleteConfirm = false;
						}}
					>
						<svg
							xmlns="http://www.w3.org/2000/svg"
							viewBox="0 0 20 20"
							fill="currentColor"
							class="w-4 h-4"
						>
							<path
								fill-rule="evenodd"
								d="M16.704 4.153a.75.75 0 01.143 1.052l-8 10.5a.75.75 0 01-1.127.075l-4.5-4.5a.75.75 0 011.06-1.06l3.894 3.893 7.48-9.817a.75.75 0 011.05-.143z"
								clip-rule="evenodd"
							/>
						</svg>
					</button>
					<button
						class="hover:text-white transition"
						on:click={() => {
							showDeleteConfirm = false;
						}}
					>
						<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>
		{:else}
			<button
				class=" flex rounded-md py-2 px-3.5 w-full hover:bg-gray-200 dark:hover:bg-gray-800 transition"
				on:click={() => {
					showDeleteConfirm = true;
				}}
			>
				<div class=" self-center mr-3">
					<svg
						xmlns="http://www.w3.org/2000/svg"
						viewBox="0 0 16 16"
						fill="currentColor"
						class="w-4 h-4"
					>
						<path
							fill-rule="evenodd"
							d="M4 2a1.5 1.5 0 0 0-1.5 1.5v9A1.5 1.5 0 0 0 4 14h8a1.5 1.5 0 0 0 1.5-1.5V6.621a1.5 1.5 0 0 0-.44-1.06L9.94 2.439A1.5 1.5 0 0 0 8.878 2H4Zm7 7a.75.75 0 0 1-.75.75h-4.5a.75.75 0 0 1 0-1.5h4.5A.75.75 0 0 1 11 9Z"
							clip-rule="evenodd"
						/>
					</svg>
				</div>
				<div class=" self-center text-sm font-medium">{$i18n.t('Delete Chats')}</div>
			</button>
		{/if}

		{#if $user?.role === 'admin'}
			<hr class=" dark:border-gray-700" />

			<button
				class=" flex rounded-md py-2 px-3.5 w-full hover:bg-gray-200 dark:hover:bg-gray-800 transition"
				on:click={() => {
					exportAllUserChats();
				}}
			>
				<div class=" self-center mr-3">
					<svg
						xmlns="http://www.w3.org/2000/svg"
						viewBox="0 0 16 16"
						fill="currentColor"
						class="w-4 h-4"
					>
						<path d="M2 3a1 1 0 0 1 1-1h10a1 1 0 0 1 1 1v1a1 1 0 0 1-1 1H3a1 1 0 0 1-1-1V3Z" />
						<path
							fill-rule="evenodd"
							d="M13 6H3v6a2 2 0 0 0 2 2h6a2 2 0 0 0 2-2V6ZM8.75 7.75a.75.75 0 0 0-1.5 0v2.69L6.03 9.22a.75.75 0 0 0-1.06 1.06l2.5 2.5a.75.75 0 0 0 1.06 0l2.5-2.5a.75.75 0 1 0-1.06-1.06l-1.22 1.22V7.75Z"
							clip-rule="evenodd"
						/>
					</svg>
				</div>
				<div class=" self-center text-sm font-medium">
					{$i18n.t('Export All Chats (All Users)')}
				</div>
			</button>

			<hr class=" dark:border-gray-700" />

			<button
				class=" flex rounded-md py-2 px-3.5 w-full hover:bg-gray-200 dark:hover:bg-gray-800 transition"
				on:click={() => {
					const res = resetVectorDB(localStorage.token).catch((error) => {
						toast.error(error);
						return null;
					});

					if (res) {
						toast.success($i18n.t('Success'));
					}
				}}
			>
				<div class=" self-center mr-3">
					<svg
						xmlns="http://www.w3.org/2000/svg"
						viewBox="0 0 16 16"
						fill="currentColor"
						class="w-4 h-4"
					>
						<path
							fill-rule="evenodd"
							d="M3.5 2A1.5 1.5 0 0 0 2 3.5v9A1.5 1.5 0 0 0 3.5 14h9a1.5 1.5 0 0 0 1.5-1.5v-7A1.5 1.5 0 0 0 12.5 4H9.621a1.5 1.5 0 0 1-1.06-.44L7.439 2.44A1.5 1.5 0 0 0 6.38 2H3.5Zm6.75 7.75a.75.75 0 0 0 0-1.5h-4.5a.75.75 0 0 0 0 1.5h4.5Z"
							clip-rule="evenodd"
						/>
					</svg>
				</div>
				<div class=" self-center text-sm font-medium">{$i18n.t('Reset Vector Storage')}</div>
			</button>
		{/if}
	</div>
</div>
