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| 1 | +import { useState } from "react"; |
| 2 | +import Markdown from "react-markdown"; |
| 3 | +import { fetchEventSource } from "@microsoft/fetch-event-source"; |
| 4 | +import { Ring } from "ldrs/react"; |
| 5 | +import "ldrs/react/Ring.css"; |
| 6 | + |
| 7 | +type Messages = { role: "user" | "assistant"; content: string }[]; |
| 8 | +type Sources = { title: string; file_path: string }[]; |
| 9 | + |
| 10 | +function Messages({ |
| 11 | + messages, |
| 12 | + loading, |
| 13 | +}: { |
| 14 | + messages: Messages; |
| 15 | + loading: boolean; |
| 16 | +}) { |
| 17 | + const classes = { |
| 18 | + base: "w-fit max-w-3/4 rounded p-4", |
| 19 | + user: "bg-cl1-brand-orange text-cl1-black self-end", |
| 20 | + assistant: "self-start bg-(--sl-color-bg-nav)", |
| 21 | + }; |
| 22 | + |
| 23 | + return ( |
| 24 | + <div className="flex flex-col justify-center gap-4"> |
| 25 | + {messages |
| 26 | + .filter((message) => Boolean(message.content)) |
| 27 | + .map((message, index) => ( |
| 28 | + <div |
| 29 | + key={index} |
| 30 | + className={`${classes.base} ${message.role === "user" ? classes.user : classes.assistant}`} |
| 31 | + > |
| 32 | + <Markdown>{message.content}</Markdown> |
| 33 | + </div> |
| 34 | + ))} |
| 35 | + {loading && ( |
| 36 | + <div className={`${classes.base} ${classes.assistant}`}> |
| 37 | + <Ring size={16} speed={1} color="var(--color-cl1-brand-orange)" /> |
| 38 | + </div> |
| 39 | + )} |
| 40 | + </div> |
| 41 | + ); |
| 42 | +} |
| 43 | + |
| 44 | +export default function SupportAI() { |
| 45 | + const [threadId, setThreadId] = useState<string | undefined>(); |
| 46 | + const [question, setQuestion] = useState<string>(""); |
| 47 | + const [loading, setLoading] = useState<boolean>(false); |
| 48 | + |
| 49 | + const [messages, setMessages] = useState<Messages>([]); |
| 50 | + |
| 51 | + async function handleSubmit() { |
| 52 | + setLoading(true); |
| 53 | + setMessages((messages) => [ |
| 54 | + ...messages, |
| 55 | + { role: "user", content: question }, |
| 56 | + { role: "assistant", content: "" }, |
| 57 | + ]); |
| 58 | + setQuestion(""); |
| 59 | + |
| 60 | + const controller = new AbortController(); |
| 61 | + const { signal } = controller; |
| 62 | + |
| 63 | + let chunkedAnswer = ""; |
| 64 | + let sources: Sources = []; |
| 65 | + |
| 66 | + await fetchEventSource( |
| 67 | + // "http://localhost:8010/proxy/devdocs/ask", |
| 68 | + "https://support-ai.cloudflaresupport.workers.dev/devdocs/ask", |
| 69 | + { |
| 70 | + method: "POST", |
| 71 | + body: JSON.stringify({ |
| 72 | + question, |
| 73 | + threadId, |
| 74 | + }), |
| 75 | + signal, |
| 76 | + openWhenHidden: true, |
| 77 | + async onopen(response) { |
| 78 | + if (!response.ok) { |
| 79 | + throw new Error(response.status.toString()); |
| 80 | + } |
| 81 | + |
| 82 | + return; |
| 83 | + }, |
| 84 | + onerror(error) { |
| 85 | + if (error instanceof Error) { |
| 86 | + setLoading(false); |
| 87 | + setMessages((messages) => [ |
| 88 | + ...messages, |
| 89 | + { |
| 90 | + role: "assistant", |
| 91 | + content: |
| 92 | + "I'm unable to provide an answer to that at the moment. Please rephrase your query and I'll try again.", |
| 93 | + }, |
| 94 | + ]); |
| 95 | + throw error; |
| 96 | + } |
| 97 | + }, |
| 98 | + onmessage(ev) { |
| 99 | + if (ev.data === "[DONE]") { |
| 100 | + controller.abort(); |
| 101 | + |
| 102 | + setMessages((messages) => { |
| 103 | + const newMessages = [...messages]; |
| 104 | + newMessages[newMessages.length - 1].content += [ |
| 105 | + "\n\n", |
| 106 | + "I used these sources to answer your question, please review them if you need more information:", |
| 107 | + "\n\n", |
| 108 | + sources |
| 109 | + .map((source) => `- [${source.title}](${source.file_path})`) |
| 110 | + .join("\n"), |
| 111 | + ].join("\n"); |
| 112 | + return newMessages; |
| 113 | + }); |
| 114 | + } |
| 115 | + |
| 116 | + const { threadId, response, botResponse } = JSON.parse(ev.data); |
| 117 | + |
| 118 | + if (botResponse?.sources) { |
| 119 | + sources = botResponse.sources; |
| 120 | + } |
| 121 | + |
| 122 | + if (threadId) { |
| 123 | + setThreadId(threadId); |
| 124 | + } |
| 125 | + |
| 126 | + if (!response) return; |
| 127 | + |
| 128 | + chunkedAnswer += response; |
| 129 | + |
| 130 | + setLoading(false); |
| 131 | + setMessages((messages) => { |
| 132 | + const newMessages = [...messages]; |
| 133 | + newMessages[newMessages.length - 1].content = chunkedAnswer; |
| 134 | + return newMessages; |
| 135 | + }); |
| 136 | + }, |
| 137 | + }, |
| 138 | + ); |
| 139 | + } |
| 140 | + |
| 141 | + return ( |
| 142 | + <div> |
| 143 | + <Messages messages={messages} loading={loading} /> |
| 144 | + <div className="flex items-center justify-center gap-4"> |
| 145 | + <input |
| 146 | + className="w-full rounded p-2" |
| 147 | + type="text" |
| 148 | + placeholder="Ask a question..." |
| 149 | + value={question} |
| 150 | + disabled={loading} |
| 151 | + onChange={(e) => setQuestion(e.target.value)} |
| 152 | + onKeyDown={async (e) => { |
| 153 | + if (e.key === "Enter" && !loading) { |
| 154 | + e.preventDefault(); |
| 155 | + await handleSubmit(); |
| 156 | + } |
| 157 | + }} |
| 158 | + /> |
| 159 | + </div> |
| 160 | + <p className="text-center text-xs"> |
| 161 | + Use of Support AI is subject to the Cloudflare Website and Online |
| 162 | + Services{" "} |
| 163 | + <a href="https://www.cloudflare.com/website-terms/">Terms of Use</a>. |
| 164 | + You acknowledge and agree that the output generated by Support AI has |
| 165 | + not been verified by Cloudflare for accuracy and does not represent |
| 166 | + Cloudflare's views. |
| 167 | + </p> |
| 168 | + </div> |
| 169 | + ); |
| 170 | +} |
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